<SEC-DOCUMENT>0001193125-19-296633.txt : 20191120
<SEC-HEADER>0001193125-19-296633.hdr.sgml : 20191120
<ACCEPTANCE-DATETIME>20191120164421
ACCESSION NUMBER:		0001193125-19-296633
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		16
CONFORMED PERIOD OF REPORT:	20191120
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20191120
DATE AS OF CHANGE:		20191120

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EQUITY RESIDENTIAL
		CENTRAL INDEX KEY:			0000906107
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				363877868
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12252
		FILM NUMBER:		191234782

	BUSINESS ADDRESS:	
		STREET 1:		EQUITY RESIDENTIAL
		STREET 2:		TWO NORTH RIVERSIDE PLAZA, SUITE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129281178

	MAIL ADDRESS:	
		STREET 1:		TWO NORTH RIVERSIDE PLAZA
		STREET 2:		SUITE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EQUITY RESIDENTIAL PROPERTIES TRUST
		DATE OF NAME CHANGE:	19930524

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ERP OPERATING LTD PARTNERSHIP
		CENTRAL INDEX KEY:			0000931182
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				363894853
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24920
		FILM NUMBER:		191234781

	BUSINESS ADDRESS:	
		STREET 1:		TWO N RIVERSIDE PLZ
		STREET 2:		STE 400
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3124741300

	MAIL ADDRESS:	
		STREET 1:		TWO N RIVERSIDE PLAZA
		STREET 2:		SUITE 450
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d836708d8k.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8" ?>
<html xmlns:eqr="http://www.equityapartments.com/20191120" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/deprecated" xmlns:country="http://xbrl.sec.gov/country/2017-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2019-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2019-01-31" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2019-01-31" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:srt="http://fasb.org/srt/2019-01-31" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:xbrll="http://www.xbrl.org/2003/linkbase" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>8-K</title>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type"/>
</head>
 <body style="">
 <div style='display: none'><ix:header><ix:hidden><ix:nonNumeric name="dei:EntityCentralIndexKey" contextRef="P11_20_2019To11_20_2019">0000906107</ix:nonNumeric><ix:nonNumeric name="dei:EntityCentralIndexKey" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">0000931182</ix:nonNumeric><ix:nonNumeric name="dei:AmendmentFlag" contextRef="P11_20_2019To11_20_2019">false</ix:nonNumeric></ix:hidden><ix:references><link:schemaRef xlink:type="simple" xlink:href="eqr-20191120.xsd" /><link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" /><link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" /><link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" /><link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" /></ix:references><ix:resources><xbrli:context id="P11_20_2019To11_20_2019" > <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0000906107</xbrli:identifier> </xbrli:entity> <xbrli:period> <xbrli:startDate>2019-11-20</xbrli:startDate> <xbrli:endDate>2019-11-20</xbrli:endDate> </xbrli:period> </xbrli:context><xbrli:context id="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis" > <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0000906107</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="dei:LegalEntityAxis" >eqr:ErpopMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2019-11-20</xbrli:startDate> <xbrli:endDate>2019-11-20</xbrli:endDate> </xbrli:period> </xbrli:context></ix:resources></ix:header></div><div><div style="margin: 0px auto; width: 8.5in; font-size: 10pt;"><div style="text-align: center;"><div style="width: 100%; line-height: 0.5pt; margin-top: 0pt; margin-bottom: 0pt; border-bottom: 0.5px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: center;"><div style="width: 100%; line-height: 3pt; margin-top: 0pt; margin-bottom: 2pt; border-bottom: 0.5px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="margin-top: 4pt; margin-bottom: 0px; background: none;"></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 18pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">UNITED STATES </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 18pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">SECURITIES AND EXCHANGE COMMISSION </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 12pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Washington, DC 20549 </div></div></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 18pt; font-weight: normal; margin-top: 10pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">FORM <ix:nonNumeric name="dei:DocumentType" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis"><ix:nonNumeric name="dei:DocumentType" contextRef="P11_20_2019To11_20_2019">8-K</ix:nonNumeric></ix:nonNumeric> </div></div></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 12pt; font-weight: normal; margin-top: 12pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">CURRENT REPORT </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 12pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Pursuant to Section 13 or 15(d) </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 12pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">of the Securities Exchange Act of 1934 </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 12pt; font-weight: normal; margin-top: 10pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;">Date of Report (Date of Earliest Event Reported): <div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;"><ix:nonNumeric name="dei:DocumentPeriodEndDate" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis" format="ixt:datemonthdayyearen"><ix:nonNumeric name="dei:DocumentPeriodEndDate" contextRef="P11_20_2019To11_20_2019" format="ixt:datemonthdayyearen">November 20, 2019</ix:nonNumeric></ix:nonNumeric></div></div></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 24pt; font-weight: normal; margin-top: 10pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><ix:nonNumeric name="dei:EntityRegistrantName" contextRef="P11_20_2019To11_20_2019">EQUITY RESIDENTIAL</ix:nonNumeric> </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Exact name of registrant as specified in its charter) </div></div></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div>
<table border="0" cellpadding="0" cellspacing="0" style="margin: 10pt auto 0px; width: 100%; font-size: 8pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="font-size: 0px;">
<td style="width: 34%; padding: 0px;"></td>
<td style="padding: 0px;"></td>
<td style="width: 33%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 33%; padding: 0px;"></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityIncorporationStateCountryCode" contextRef="P11_20_2019To11_20_2019" format="ixt-sec:stateprovnameen">Maryland</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityFileNumber" contextRef="P11_20_2019To11_20_2019">1-12252</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityTaxIdentificationNumber" contextRef="P11_20_2019To11_20_2019">13-3675988</ix:nonNumeric></div> </div></div></div></td></tr>
<tr style="font-size: 8pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(State or other jurisdiction </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">of incorporation) </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Commission </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">File Number) </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(IRS Employer </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Identification Number) </div></div></div></td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 24pt; font-weight: normal; margin-top: 10pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityRegistrantName" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">ERP OPERATING LIMITED PARTNERSHIP</ix:nonNumeric></div> </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Exact name of registrant as specified in its charter) </div></div></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div>
<table border="0" cellpadding="0" cellspacing="0" style="margin: 10pt auto 0px; width: 100%; font-size: 8pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="font-size: 0px;">
<td style="width: 34%; padding: 0px;"></td>
<td style="padding: 0px;"></td>
<td style="width: 33%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 33%; padding: 0px;"></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityIncorporationStateCountryCode" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis" format="ixt-sec:stateprovnameen">Illinois</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityFileNumber" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">0-24920</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityTaxIdentificationNumber" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">36-3894853</ix:nonNumeric></div> </div></div></div></td></tr>
<tr style="font-size: 8pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(State or other jurisdiction </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">of incorporation) </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Commission </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">File Number) </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(IRS Employer </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Identification Number) </div></div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityAddressAddressLine1" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis"><ix:nonNumeric name="dei:EntityAddressAddressLine1" contextRef="P11_20_2019To11_20_2019">Two North Riverside Plaza</ix:nonNumeric></ix:nonNumeric></div></div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityAddressAddressLine2" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis"><ix:nonNumeric name="dei:EntityAddressAddressLine2" contextRef="P11_20_2019To11_20_2019">Suite 400</ix:nonNumeric></ix:nonNumeric></div><div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;">, </div><div style="display:inline;"><ix:nonNumeric name="dei:EntityAddressCityOrTown" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis"><ix:nonNumeric name="dei:EntityAddressCityOrTown" contextRef="P11_20_2019To11_20_2019">Chicago</ix:nonNumeric></ix:nonNumeric></div>, <div style="display:inline;"><ix:nonNumeric name="dei:EntityAddressStateOrProvince" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis" format="ixt-sec:stateprovnameen"><ix:nonNumeric name="dei:EntityAddressStateOrProvince" contextRef="P11_20_2019To11_20_2019" format="ixt-sec:stateprovnameen">Illinois</ix:nonNumeric></ix:nonNumeric></div> </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="vertical-align: bottom; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityAddressPostalZipCode" contextRef="P11_20_2019To11_20_2019">60606</ix:nonNumeric></div> </div></div></div></td></tr>
<tr style="font-size: 8pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Address of principal executive offices) </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Zip Code) </div></div></div></td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 10pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;">Registrant&#8217;s telephone number, including area code <div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;">(<div style="display:inline;"><ix:nonNumeric name="dei:CityAreaCode" contextRef="P11_20_2019To11_20_2019">312</ix:nonNumeric></div>) <div style="display:inline;"><ix:nonNumeric name="dei:LocalPhoneNumber" contextRef="P11_20_2019To11_20_2019">474-1300</ix:nonNumeric></div></div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 10pt; margin-bottom: 0px;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Not applicable </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">(Former name or former address, if changed since last report.) </div></div></div><div style="text-align: center;"><div style="margin: 10pt auto 0px; width: 21.05%; line-height: 6pt; border-bottom: 1px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: left; font-family: Times New Roman; font-size: 10pt; margin-top: 10pt; margin-bottom: 0px;">Check the appropriate box below if the Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">8-K</div> filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (<div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;">see</div></div> General Instruction A.2 below):</div><div style="margin-top: 6pt; margin-bottom: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 4%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-family: &quot;Times New Roman&quot;; font-weight: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:WrittenCommunications" contextRef="P11_20_2019To11_20_2019" format="ixt:booleanfalse">&#9744;</ix:nonNumeric></div></div></td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="margin-top: 6pt; margin-bottom: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 4%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-family: &quot;Times New Roman&quot;; font-weight: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:SolicitingMaterial" contextRef="P11_20_2019To11_20_2019" format="ixt:booleanfalse">&#9744;</ix:nonNumeric></div></div></td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="margin-top: 6pt; margin-bottom: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 4%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-family: &quot;Times New Roman&quot;; font-weight: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:PreCommencementTenderOffer" contextRef="P11_20_2019To11_20_2019" format="ixt:booleanfalse">&#9744;</ix:nonNumeric></div></div></td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="margin-top: 6pt; margin-bottom: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 4%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-family: &quot;Times New Roman&quot;; font-weight: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:PreCommencementIssuerTenderOffer" contextRef="P11_20_2019To11_20_2019" format="ixt:booleanfalse">&#9744;</ix:nonNumeric></div></div></td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">Pre-commencement</div> communications pursuant to Rule <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">13e-4(c)</div> under the Exchange Act (17 CFR 240.13e-4(c))</td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="text-align: left; font-family: Times New Roman; font-size: 10pt; margin-top: 10pt; margin-bottom: 0px;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Securities registered pursuant to Section 12(b) of the Act: </div></div>
<table border="0" cellpadding="0" cellspacing="0" style="margin: 10pt auto 0px; width: 100%; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="font-size: 0px;">
<td style="width: 34%; padding: 0px;"></td>
<td style="padding: 0px;"></td>
<td style="width: 33%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 33%; padding: 0px;"></td></tr>
<tr style="font-size: 8pt; page-break-inside: avoid;">
<td style="vertical-align: bottom; border-bottom: 1pt solid rgb(0, 0, 0); white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Title of each class </div></div></div></td>
<td style="vertical-align: bottom; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="vertical-align: bottom; border-bottom: 1pt solid rgb(0, 0, 0); padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Trading </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Symbol(s) </div></div></div></td>
<td style="vertical-align: bottom; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="vertical-align: bottom; border-bottom: 1pt solid rgb(0, 0, 0); padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Name of each exchange </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">on which registered </div></div></div></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:Security12bTitle" contextRef="P11_20_2019To11_20_2019">Common Shares of Beneficial Interest, $0.01 Par Value (Equity Residential)</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:TradingSymbol" contextRef="P11_20_2019To11_20_2019">EQR</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:SecurityExchangeName" contextRef="P11_20_2019To11_20_2019" format="ixt-sec:exchnameen">New York Stock Exchange</ix:nonNumeric></div> </div></div></div></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><ix:nonNumeric name="dei:Security12bTitle" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">7.57% Notes due August 15, 2026<br/> (ERP Operating Limited Partnership)</ix:nonNumeric> </div></div></div><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"></div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:NoTradingSymbolFlag" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis" format="ixt:booleantrue">N/A</ix:nonNumeric></div> </div></div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:SecurityExchangeName" contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis" format="ixt-sec:exchnameen">New York Stock Exchange</ix:nonNumeric></div> </div></div></div></td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="text-align: left; font-family: Times New Roman; font-size: 10pt; margin-top: 10pt; margin-bottom: 0px;">Indicate by check mark whether the registrant is an emerging growth&#8203;&#8203;&#8203;&#8203;&#8203;&#8203;&#8203; company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">12b-2</div> of the Securities Exchange Act of 1934 (&#167;<div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">240.12b-2</div> of this chapter).</div><div style="text-align: right; font-family: Times New Roman; font-size: 10pt; margin-top: 10pt; margin-bottom: 0px;">Emerging growth company&#160;&#160;<div style="font-family: &quot;Times New Roman&quot;; font-weight: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><ix:nonNumeric name="dei:EntityEmergingGrowthCompany" contextRef="P11_20_2019To11_20_2019" format="ixt:booleanfalse">&#9744;</ix:nonNumeric></div></div></div><div style="text-align: left; font-family: Times New Roman; font-size: 10pt; margin-top: 10pt; margin-bottom: 0px;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section&#160;13(a) of the Exchange Act. &#160;&#160;<div style="font-family: &quot;Times New Roman&quot;; font-weight: normal; letter-spacing: 0px; top: 0px;;display:inline;">&#9744;</div></div><div style="margin-top: 10pt; margin-bottom: 0px; background: none;"></div><div style="text-align: center;"><div style="width: 100%; line-height: 0.5pt; margin-top: 0pt; margin-bottom: 0pt; border-bottom: 0.5px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div style="text-align: center;"><div style="width: 100%; line-height: 3pt; margin-top: 0pt; margin-bottom: 2pt; border-bottom: 0.5px solid rgb(0, 0, 0); background: none;"><div style="background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;">&#160;</div></div></div><div></div><div style="margin-top: 0px; background: none;"></div></div></div><div style="line-height: 5pt; font-size: 5pt;"><div style="font-size:5pt;;display:inline;">&#160;</div></div><div style="break-after: page;"></div><div><hr style="width: 100%; height: 3px; color: rgb(153, 153, 153);"/><div style="margin: 0px auto; width: 8.5in; font-size: 10pt;">
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 9%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-weight:bold;display:inline;">Item&#160;5.02 </div></td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-weight:bold;display:inline;">Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</div></td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="margin-top: 6pt; margin-bottom: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 4%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">(d)</td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">On November&#160;20, 2019, Tahsinul Zia Huque was appointed as a Trustee of Equity Residential (the &#8220;Company&#8221;). In connection with Mr.&#160;Huque&#8217;s appointment, the size of the Company&#8217;s Board of Trustees was increased from 12 to 13. Mr.&#160;Huque was also appointed to serve on the Audit Committee effective as of such date. The Company has determined that Mr.&#160;Huque is independent of the Company and its management within the meaning of the New York Stock Exchange listing standards.</td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div style="text-align: left; text-indent: 0%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0px; margin-left: 4%;">As a <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">non-employee</div> Trustee, Mr.&#160;Huque will receive an annual cash retainer of $80,000, an annual retainer of $160,000 to be paid in share options, restricted shares and/or restricted units, and an additional $10,000 annual cash retainer for his service on the Audit Committee, with all such amounts prorated from the date of his appointment to the date of the Company&#8217;s 2020 Annual Meeting of Shareholders. The Company will enter into an Indemnification Agreement with Mr.&#160;Huque in substantially the same form that the Company has entered into with its other trustees and executive officers. The form of the Indemnification Agreement was filed as Exhibit 10.18 to the Company&#8217;s Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K</div> for the year ended December&#160;31, 2003, filed with the Securities and Exchange Commission on March&#160;12, 2004.</div><div style="text-align: left; text-indent: 0%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0px; margin-left: 4%;">A copy of the press release announcing Mr.&#160;Huque&#8217;s appointment to the Company&#8217;s Board of Trustees is attached as Exhibit 99.1 to this Current Report on Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">8-K</div> and is incorporated herein by reference.</div><div style="margin-top: 18pt; margin-bottom: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="border: 0px currentcolor; width: 100%; text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="page-break-inside: avoid;">
<td style="width: 9%; vertical-align: top; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-weight:bold;display:inline;">Item&#160;9.01 </div></td>
<td style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="font-weight:bold;display:inline;">Financial Statements and Exhibits.</div></td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div>
<table border="0" cellpadding="0" cellspacing="0" style="margin: 12pt auto 0px; width: 100%; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="font-size: 0px;">
<td style="padding: 0px;"></td>
<td style="padding: 0px;"></td>
<td style="padding: 0px;"></td>
<td style="width: 5%; padding: 0px;"></td>
<td style="width: 92%; padding: 0px;"></td></tr>
<tr style="font-size: 8pt; page-break-inside: avoid;">
<td colspan="2" style="vertical-align: bottom; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Exhibit<br/>Number </div></div></div></td>
<td style="padding: 0px 2pt 0px 0px; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; vertical-align: bottom; white-space: nowrap;"><div style="font-weight:bold;display:inline;">&#160;</div></td>
<td style="vertical-align: bottom; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="vertical-align: bottom; white-space: nowrap; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 8pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Description </div></div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; vertical-align: top; white-space: nowrap;">&#160;</td>
<td style="padding: 0px; text-align: left; vertical-align: top; white-space: nowrap;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">99.1 </div></div></td>
<td style="padding: 0px 2pt 0px 0px; margin-top: 0pt; margin-bottom: 0pt; vertical-align: top; white-space: nowrap; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; text-indent: 0em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0em; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><a href="d836708dex991.htm">Press Release, dated November&#160;20, 2019, announcing the appointment of Tahsinul Zia Huque to the Board of Trustees of Equity Residential. </a> </div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="height: 8px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; vertical-align: top; white-space: nowrap;">&#160;</td>
<td style="padding: 0px; text-align: left; vertical-align: top; white-space: nowrap;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">104 </div></div></td>
<td style="padding: 0px 2pt 0px 0px; margin-top: 0pt; margin-bottom: 0pt; vertical-align: top; white-space: nowrap; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px; font-family: &quot;Times New Roman&quot;;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; text-indent: 0em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0em; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Cover Page Interactive Data File (embedded within the Inline XBRL document). </div></div></td></tr></table><div>&#160;</div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div></div><div style="margin-top: 0px; background: none;"></div><div><div style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">2</div></div><div></div></div></div></div><div style="line-height: 5pt; font-size: 5pt;"><div style="font-size:5pt;;display:inline;">&#160;</div></div><div style="break-after: page;"></div><div><hr style="width: 100%; height: 3px; color: rgb(153, 153, 153);"/><div style="margin: 0px auto; width: 8.5in; font-size: 10pt;"><div style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">SIGNATURES </div></div></div><div style="text-align: left; font-family: Times New Roman; font-size: 10pt; margin-top: 10pt; margin-bottom: 0px;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. </div></div>
<table border="0" cellpadding="0" cellspacing="0" style="margin: 12pt auto 0px 0px; width: 100%; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;">
<tr style="font-size: 0px;">
<td style="width: 42%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 4%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 4%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 4%; padding: 0px;"></td>
<td style="width: 1%; padding: 0px;"></td>
<td style="width: 42%; padding: 0px;"></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="5" style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">EQUITY RESIDENTIAL </div></div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="3" style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Date: November&#160;20, 2019 </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">By: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="3" style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 1pt; border-bottom: 1px solid rgb(0, 0, 0); line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">/s/ Scott J. Fenster </div></div></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Name: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="3" style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Scott J. Fenster </div></div></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Its: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="3" style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Executive Vice President and General Counsel </div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="5" style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="5" style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-weight: normal; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="font-weight:bold;display:inline;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">ERP OPERATING LIMITED PARTNERSHIP </div></div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="3" style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">By: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td colspan="3" style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Equity Residential, its general partner </div></div></td></tr>
<tr style="font-size: 1pt;">
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="height: 16px; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Date: November&#160;20, 2019 </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">By: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 1pt; border-bottom: 1px solid rgb(0, 0, 0); line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">/s/ Scott J. Fenster </div></div></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Name: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Scott J. Fenster </div></div></td></tr>
<tr style="font-size: 10pt; page-break-inside: avoid;">
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal; background: none;"></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Its: </div></div></td>
<td style="vertical-align: top; padding-left: 0px; padding-top: 0px; padding-bottom: 0px;">&#160;</td>
<td style="padding: 0px; vertical-align: top;"><div style="text-align: left; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; line-height: normal;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Executive Vice President and General Counsel </div></div></td></tr></table><div>&#160;</div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px; background: none;"></div><div></div><div style="margin-top: 0px; background: none;"></div><div><div style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="letter-spacing: 0px; top: 0px;;display:inline;">3</div></div></div></div><div style="; page-break: avoid"></div><div style="margin: 0px auto; width: 8.5in; font-size: 10pt;"></div></div>
</body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d836708dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-99.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 99.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt;margin-bottom:0pt">


<IMG SRC="g836708g1120021513571.jpg" ALT="LOGO">
 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>NEWS RELEASE - </B>FOR IMMEDIATE RELEASE </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CONTACT: Marty
McKenna&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (312) <FONT
STYLE="white-space:nowrap">928-1901</FONT> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOVEMBER&nbsp;20, 2019 </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>Equity Residential Appoints T. Zia Huque to Board of Trustees </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Chicago, IL&#151;November&nbsp;20, 2019</B>&#151;Equity Residential (NYSE: EQR) today announced the appointment of T. Zia Huque to the Company&#146;s Board
of Trustees to serve until the next annual meeting of shareholders. Mr.&nbsp;Huque, who will serve as a member of the Company&#146;s Audit Committee, qualifies as an independent trustee under the New York Stock Exchange&#146;s listing standards.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Mr.&nbsp;Huque, 51, served as the President and Chief Executive Officer of Deutsche Bank Securities Inc., the U.S. Broker Dealer of Deutsche Bank, until
his departure in <FONT STYLE="white-space:nowrap">mid-2019.</FONT> During Mr.&nbsp;Huque&#146;s 30 year finance career on Wall Street, he held multiple executive positions in the United States and abroad while leading Investment Banking and
Sales&nbsp;&amp; Trading functions spanning many industries, products and clients. Also, during his career he was closely involved in creating the structure for public REITS to access the unsecured debt market. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">&#147;Zia brings tremendous experience in management, finance and capital markets as well as a great understanding of risk and the regulatory environment to
our Company,&#148; said Sam Zell, Equity Residential&#146;s Chairman. &#147;We are extremely pleased that Zia has joined our Board and we look forward to his many contributions over the coming years.&#148; </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>About Equity Residential </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Equity Residential is committed
to creating communities where people thrive. The Company, a member of the S&amp;P 500, is focused on the acquisition, development and management of rental apartment properties located in urban and high-density suburban communities where today&#146;s
renters want to live, work and play.&nbsp;Equity Residential owns or has investments in 308 properties consisting of 80,299 apartment units, primarily located in Boston, New York, Washington, D.C., Seattle, San Francisco, Southern California and
Denver. For more information on Equity Residential, please visit our website at <U>www.equityapartments.com</U>. </P>
</DIV></Center>

</BODY></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>eqr-20191120.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 20-November-2019 [06:42:34] {AM}-->
<schema targetNamespace="http://www.equityapartments.com/20191120" elementFormDefault="qualified" xmlns:eqr="http://www.equityapartments.com/20191120" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2019-01-31" xmlns:country="http://xbrl.sec.gov/country/2017-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2019-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2019-01-31" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:us-types="http://fasb.org/us-types/2019-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:srt="http://fasb.org/srt/2019-01-31" xmlns:srt-types="http://fasb.org/srt-types/2019-01-31">
<annotation>
<appinfo>
<link:roleType roleURI="http://www.equityapartments.com/role/CoverPage" id="CoverPage">
<link:definition>1001 - Document - Cover Page</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
<link:linkbaseRef xlink:type="simple" xlink:href="eqr-20191120_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
</appinfo>
</annotation>
<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
<import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
<import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/currency/2019-01-31" schemaLocation="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/exch/2019-01-31" schemaLocation="https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/naics/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
<import namespace="http://xbrl.sec.gov/stpr/2018-01-31" schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" />
<import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
<import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
<import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
<import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
<import namespace="http://fasb.org/us-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd" />
<import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" />
<import namespace="http://fasb.org/srt-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd" />
<element name="ErpopMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="eqr_ErpopMember" substitutionGroup="xbrli:item" />
</schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>4
<FILENAME>eqr-20191120_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 20-November-2019 [06:42:34] {AM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="eqr-20191120.xsd#CoverPage" roleURI="http://www.equityapartments.com/role/CoverPage" />
<calculationLink xlink:type="extended" xlink:role="http://www.equityapartments.com/role/CoverPage">
</calculationLink>
</linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>5
<FILENAME>eqr-20191120_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 20-November-2019 [06:42:34] {AM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
<roleRef xlink:type="simple" xlink:href="eqr-20191120.xsd#CoverPage" roleURI="http://www.equityapartments.com/role/CoverPage" />
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" />
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" />
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" />
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" />
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" />
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll" />
<definitionLink xlink:type="extended" xlink:role="http://www.equityapartments.com/role/CoverPage">
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_525076" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_525073" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_DocumentInformationTable_525073" xbrldt:contextElement="segment" xbrldt:closed="true" use="optional" order="1" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_525074" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_525073" xlink:to="loc_us-gaap_StatementClassOfStockAxis_525074" use="optional" order="2" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_525075" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_525074" xlink:to="loc_us-gaap_ClassOfStockDomain_525075" use="optional" order="3" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_525075_default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_525074" xlink:to="loc_us-gaap_ClassOfStockDomain_525075_default" use="optional" order="4" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_525109" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_525073" xlink:to="loc_dei_LegalEntityAxis_525109" use="optional" order="5" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_525110" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_525109" xlink:to="loc_dei_EntityDomain_525110" use="optional" order="6" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_525110_default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_525109" xlink:to="loc_dei_EntityDomain_525110_default" use="optional" order="7" />
<loc xlink:type="locator" xlink:href="eqr-20191120.xsd#eqr_ErpopMember" xlink:label="loc_eqr_ErpopMember_525111" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_525110" xlink:to="loc_eqr_ErpopMember_525111" use="optional" order="8" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_525079" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityRegistrantName_525079" use="optional" order="9" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_525080" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityCentralIndexKey_525080" use="optional" order="10" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_525082" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_DocumentType_525082" use="optional" order="11" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_525083" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_DocumentPeriodEndDate_525083" use="optional" order="12" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_525086" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_AmendmentFlag_525086" use="optional" order="13" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_525088" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityFileNumber_525088" use="optional" order="14" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_525089" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityTaxIdentificationNumber_525089" use="optional" order="15" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_525090" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressAddressLine1_525090" use="optional" order="16" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_525091" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressAddressLine2_525091" use="optional" order="17" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_525092" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressCityOrTown_525092" use="optional" order="18" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_525093" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressStateOrProvince_525093" use="optional" order="19" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_525094" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressPostalZipCode_525094" use="optional" order="20" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_525096" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_CityAreaCode_525096" use="optional" order="21" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_525097" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_LocalPhoneNumber_525097" use="optional" order="22" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_525098" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityIncorporationStateCountryCode_525098" use="optional" order="23" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:label="loc_dei_WrittenCommunications_525099" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_WrittenCommunications_525099" use="optional" order="24" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:label="loc_dei_SolicitingMaterial_525100" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_SolicitingMaterial_525100" use="optional" order="25" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:label="loc_dei_PreCommencementTenderOffer_525101" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_PreCommencementTenderOffer_525101" use="optional" order="26" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_525103" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_525103" use="optional" order="27" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_525104" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityEmergingGrowthCompany_525104" use="optional" order="28" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_525105" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_Security12bTitle_525105" use="optional" order="29" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_525106" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_TradingSymbol_525106" use="optional" order="30" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_525107" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_SecurityExchangeName_525107" use="optional" order="31" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_NoTradingSymbolFlag" xlink:label="loc_dei_NoTradingSymbolFlag_525108" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_NoTradingSymbolFlag_525108" use="optional" order="32" />
</definitionLink>
</linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>eqr-20191120_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 20-November-2019 [06:42:34] {AM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" roleURI="http://www.xbrl.org/2009/role/negatedLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" />
<roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" roleURI="http://www.xbrl.org/2009/role/netLabel" />
<labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CoverAbstract" xlink:label="loc_dei_CoverAbstract" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CoverAbstract" xml:lang="en-US">Cover [Abstract]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationTable" xml:lang="en-US">Document Information [Table]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationTable" xlink:to="lab_dei_DocumentInformationTable" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementClassOfStockAxis" xml:lang="en-US">Class of Stock [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="lab_us-gaap_StatementClassOfStockAxis" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ClassOfStockDomain" xml:lang="en-US">Class of Stock [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="lab_us-gaap_ClassOfStockDomain" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationLineItems" xml:lang="en-US">Document Information [Line Items]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationLineItems" xlink:to="lab_dei_DocumentInformationLineItems" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityRegistrantName" xml:lang="en-US">Entity Registrant Name</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCentralIndexKey" xml:lang="en-US">Entity Central Index Key</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentType" xml:lang="en-US">Document Type</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentPeriodEndDate" xml:lang="en-US">Document Period End Date</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AmendmentFlag" xml:lang="en-US">Amendment Flag</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityFileNumber" xml:lang="en-US">Entity File Number</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityTaxIdentificationNumber" xml:lang="en-US">Entity Tax Identification Number</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressAddressLine1" xml:lang="en-US">Entity Address, Address Line One</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressAddressLine2" xml:lang="en-US">Entity Address, Address Line Two</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2" xlink:to="lab_dei_EntityAddressAddressLine2" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressCityOrTown" xml:lang="en-US">Entity Address, City or Town</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressStateOrProvince" xml:lang="en-US">Entity Address, State or Province</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityAddressPostalZipCode" xml:lang="en-US">Entity Address, Postal Zip Code</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CityAreaCode" xml:lang="en-US">City Area Code</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_LocalPhoneNumber" xml:lang="en-US">Local Phone Number</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xml:lang="en-US">Entity Incorporation, State or Country Code</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:label="loc_dei_WrittenCommunications" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_WrittenCommunications" xml:lang="en-US">Written Communications</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications" xlink:to="lab_dei_WrittenCommunications" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:label="loc_dei_SolicitingMaterial" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_SolicitingMaterial" xml:lang="en-US">Soliciting Material</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial" xlink:to="lab_dei_SolicitingMaterial" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:label="loc_dei_PreCommencementTenderOffer" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_PreCommencementTenderOffer" xml:lang="en-US">Pre-commencement Tender Offer</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer" xlink:to="lab_dei_PreCommencementTenderOffer" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="loc_dei_PreCommencementIssuerTenderOffer" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xml:lang="en-US">Pre-commencement Issuer Tender Offer</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer" xlink:to="lab_dei_PreCommencementIssuerTenderOffer" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityEmergingGrowthCompany" xml:lang="en-US">Entity Emerging Growth Company</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_Security12bTitle" xml:lang="en-US">Title of 12(b) Security</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_TradingSymbol" xml:lang="en-US">Trading Symbol</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_SecurityExchangeName" xml:lang="en-US">Security Exchange Name</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_NoTradingSymbolFlag" xlink:label="loc_dei_NoTradingSymbolFlag" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_NoTradingSymbolFlag" xml:lang="en-US">No Trading Symbol Flag</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_NoTradingSymbolFlag" xlink:to="lab_dei_NoTradingSymbolFlag" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_LegalEntityAxis" xml:lang="en-US">Legal Entity [Axis]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityDomain" xml:lang="en-US">Entity [Domain]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" />
<loc xlink:type="locator" xlink:href="eqr-20191120.xsd#eqr_ErpopMember" xlink:label="loc_eqr_ErpopMember" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_eqr_ErpopMember" xml:lang="en-US">Erpop [Member]</label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_eqr_ErpopMember" xml:lang="en-US">ERPOP [Member]</label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_eqr_ErpopMember" xlink:to="lab_eqr_ErpopMember" />
</labelLink>
</linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>eqr-20191120_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 20-November-2019 [06:42:34] {AM}-->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef xlink:type="simple" xlink:href="eqr-20191120.xsd#CoverPage" roleURI="http://www.equityapartments.com/role/CoverPage" />
<presentationLink xlink:type="extended" xlink:role="http://www.equityapartments.com/role/CoverPage">
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CoverAbstract" xlink:label="loc_dei_CoverAbstract_525071" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_525073" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_525071" xlink:to="loc_dei_DocumentInformationTable_525073" use="optional" order="1" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_525074" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_525073" xlink:to="loc_us-gaap_StatementClassOfStockAxis_525074" use="optional" order="2" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_525075" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_525074" xlink:to="loc_us-gaap_ClassOfStockDomain_525075" use="optional" order="3" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_525109" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_525073" xlink:to="loc_dei_LegalEntityAxis_525109" use="optional" order="4" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_525110" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_525109" xlink:to="loc_dei_EntityDomain_525110" use="optional" order="5" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="eqr-20191120.xsd#eqr_ErpopMember" xlink:label="loc_eqr_ErpopMember_525111" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain_525110" xlink:to="loc_eqr_ErpopMember_525111" use="optional" order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_525076" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_525073" xlink:to="loc_dei_DocumentInformationLineItems_525076" use="optional" order="7" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_525079" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityRegistrantName_525079" use="optional" order="8" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_525080" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityCentralIndexKey_525080" use="optional" order="9" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_525082" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_DocumentType_525082" use="optional" order="10" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_525083" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_DocumentPeriodEndDate_525083" use="optional" order="11" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_525086" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_AmendmentFlag_525086" use="optional" order="12" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_525088" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityFileNumber_525088" use="optional" order="13" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_525089" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityTaxIdentificationNumber_525089" use="optional" order="14" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_525090" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressAddressLine1_525090" use="optional" order="15" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_525091" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressAddressLine2_525091" use="optional" order="16" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_525092" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressCityOrTown_525092" use="optional" order="17" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_525093" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressStateOrProvince_525093" use="optional" order="18" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_525094" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityAddressPostalZipCode_525094" use="optional" order="19" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_525096" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_CityAreaCode_525096" use="optional" order="20" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_525097" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_LocalPhoneNumber_525097" use="optional" order="21" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_525098" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityIncorporationStateCountryCode_525098" use="optional" order="22" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications" xlink:label="loc_dei_WrittenCommunications_525099" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_WrittenCommunications_525099" use="optional" order="23" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial" xlink:label="loc_dei_SolicitingMaterial_525100" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_SolicitingMaterial_525100" use="optional" order="24" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer" xlink:label="loc_dei_PreCommencementTenderOffer_525101" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_PreCommencementTenderOffer_525101" use="optional" order="25" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_525103" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_525103" use="optional" order="26" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_525104" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_EntityEmergingGrowthCompany_525104" use="optional" order="27" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_525105" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_Security12bTitle_525105" use="optional" order="28" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_525106" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_TradingSymbol_525106" use="optional" order="29" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_NoTradingSymbolFlag" xlink:label="loc_dei_NoTradingSymbolFlag_525108" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_NoTradingSymbolFlag_525108" use="optional" order="30" preferredLabel="http://www.xbrl.org/2003/role/label" />
<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_525107" />
<presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_525076" xlink:to="loc_dei_SecurityExchangeName_525107" use="optional" order="31" preferredLabel="http://www.xbrl.org/2003/role/label" />
</presentationLink>
</linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g836708g1120021513571.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
begin 644 g836708g1120021513571.jpg
M_]C_X  02D9)1@ ! 0$ 8 !@  #_VP!#  @&!@<&!0@'!P<)"0@*#!0-# L+
M#!D2$P\4'1H?'AT:'!P@)"XG("(L(QP<*#<I+# Q-#0T'R<Y/3@R/"XS-#+_
MVP!# 0D)"0P+#!@-#1@R(1PA,C(R,C(R,C(R,C(R,C(R,C(R,C(R,C(R,C(R
M,C(R,C(R,C(R,C(R,C(R,C(R,C(R,C+_P  1"  < ,@# 2(  A$! Q$!_\0
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:&=W.UE/+;WT<2)-$H94*Y!W>E%='10!__]D!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.19.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>2</ContextCount>
  <ElementCount>97</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>1</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="d836708d8k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>1001 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.equityapartments.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="8-K" original="d836708d8k.htm">d836708d8k.htm</File>
    <File>d836708dex991.htm</File>
    <File>eqr-20191120.xsd</File>
    <File>eqr-20191120_cal.xml</File>
    <File>eqr-20191120_def.xml</File>
    <File>eqr-20191120_lab.xml</File>
    <File>eqr-20191120_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2019-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>11
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>12
<FILENAME>0001193125-19-296633-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001193125-19-296633-xbrl.zip
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MIM'1@W]>"'1H4XFI72ANF4 4^>&XM%<J :V/ZB2*H4<L1]QO,> =7+L:):8
M$3_0)UCV"";^"*Z=$S)*#@*<*FH7P[ @] !E]S3NXE# @[ Q#/>#%8V0.D/T
M8*!C#ND.=(,9E+<7^S9@R9KF:!?=&-IU ;;9@-2QH:-?D6KK/L>8"2YOO#B-
MG91+Y1*I1I.\94S%-*:SH3J@6*'BDJ!SO07:K,5[@WQ<=AT0L>N-WMVH/@HV
M(N I+@" #EM(H,A#W>AN(8G)C>@-BQB'FF L>CSM#X81=:?(*:)'L]2 #^(F
M3%[L.9B][CH&P0O3A:':W(V8?ZW7X2W8#ZM4L(X'H)P$W]M<TF251K<T^9&[
MO0]<A$0>L6O _Y%$JU@HT4I@.T8SU]"9\$(C9(8L<NQI)?AW2X7=B1U>9=W3
M_APW\?MR()"IP?!RJ4#?["J8BZ(/20T(!"&<0=#.VM!I\8HTI12U.TFT.#DI
M6%$G4.$J4D9!.<!;V!"N;WU[EY:6<NSM,Y@=4 ,#ZFKU 21M^-NS6<I>)MR"
MQQ]=?3>^A=7X%DXP_=7X%@:/K0UB"_J)A,CDCYBL9@Y;;NNOXKQE>4/.6RY_
MQC+K6<F#!<Y5GI3?[EPE  _ Y5WDRL-=F760QQR>?/L$FY@EZ)S(Z&+A3(E3
MX\B!(1_]6X_U>E L@@:+@B@9+]G 0VL&U]\>UZ^9M 4/9CU?O,RCB\?C.['P
M=F7?C?E/#YJ9F)E,S.3-3D L851GE@(SS8RLV;;3VO\"0RR1/K/PRN>SQT49
MGG8"O%:0KW:W5D%$J\W67L6,ELGK3G-4L>[;QZL27BL]XNH1[YR2CL#40N>X
M<GA4.G98[^3$*G145U_0)"5I1%ZQ/>W]=6:&P<:<9O&-].,A[Y0@6>PWF_:3
MI8;("D =-.4-/Z,&F)E\N)D8->"3J@%6:=]H 48+6+L6< 5"79![X"G1314T
MRM.XIHJ2+]QE9 =EON/$8<$XE:*NFY/??FK<$,>W0Q3VNX49,GK<<9UT\FR#
M)WOY;.,,V=UOP9Z7PXORK(QKDT&=,8-Z$\^*KO5.LOK7NVKSUT;M88$S^9MZ
M#^G]V!&?Z 02V"EBE*F;X<S>7G3MUL39)2=T^\2FH=0);US&K[#%:442@ (%
MOJ>355JL0]TV!N=Q.'U;;5P!P_8A)K;H[@ _.[X  #F%E5^".AZ4>^_ W""9
M=58D;-FK2S-=L/H9^GU5J'%]U[:L)X?X,[Q,;""9C'\?Y#8"JML;SJO]X]=Z
M\W<"2D#]NG;7K%=O5AW5LPZ7\M/,]P.9 3[B $,2K^3><K!/+R&7S :@"J:0
M'GB8XRXSXG9KQ.U60W(Y!/^I?_K>>)S""3=Z)ZR4RPMFO16^^@TKRB)YL&%8
M\G\%\H5Y>!/THK')3\#V#7\QD-PT2"Y_=[[AU9NQ%X8!&[9A(+EUD%R.Z.M*
M&OZ[&5M1&QZ1_B>>/<=L09VMIP^P?64>$]0E5T QDKFK2]S;0B_3]@^0X@HW
M?C(C90PD321IS9$D? KBOM:H-NMW7\E-_;;>K%V3^VJC>5=K//Q<OS>!)3/
M!@Q@ DN?D,T;2!I(FEC0A]F)Z4-H>SH!\S$V;8/H 2ICVIH!S ";.L"GUY!,
MZLU&;HM1MPPD-PV26Z^X;@/T3>+2YNR%X2D&D@:2GPZ2'R %[!/#WX@OPRH,
M) TD/RTDMS^![A.#?P5)<^8FG2V\2:>2Y>*<<;TD5DC2(/^*6VB2]W\46[[3
MAX\=U74O_Q]02P,$%     @ BH5T3R_REKSS!0  !0\  !$   !D.#,V-S X
M9&5X.3DQ+FAT;=U777/3.!1][TS_PYWL#+/,I&Z24NA'FIE\&,ALVW2;  MO
MBJW$HK9D)+DA^^OW7#DIA7;[LO"R+Y3(^CCGW'./[.[;V<5YK_LV[H]ZNSO=
MV7AV'O?BO_:.CZ-V=[_^B?']S03J#B:CCS1X,YR<3Z[/&A_>CF=Q@Q_0[@[F
M#:7VTO:ZH_%[FLX^GL=GC95*?79R%!TJW2"1JZ4^:^1RX<.J[M5V6B'L4ND]
M;\J35NE/:?-[;KPW13VT,-KO.?6W/&E_^[T0A<K7)S-52$>7<D77IA XJ7\^
M?G-YUK!JF>&H[J 7?\W47'EB9M3='_2Z^U>]>P#N[=[![C_@>0"GT7NFYZX\
MY5U _-]X/+*.A<**\<4;FEX/SQK+HX.7KUI'RW:[TVIUVH?M@\-7[>ASN602
ML[/&^>3-I!;K>\#W3@J(_ZMD+-)E_&%*U_%YW)_&M!=D>CVYIO'%13P:]V?Q
MW;,G:/\<,,/)Y:P_G)W0A;!^O;MSD?PAM1:UZ/^_?^GW@W;G.75?@S9::=L[
MF?)RSY4BD2?:K*PH&[WCSM%>^[B%[N2YO5_NBLO)^_AB$%_7.#NM)G5:[>.G
M#-!Y\1,;. F)$LS9?=>+OU3*K^E:.I7B@1(Y]<O2*.T=S2+ZI 2]K;Y4DKRA
M@1$V);.@F:V<E]B]N_^NM^W\7VI>@!UF*A%+TZ3Q^;/?T-2GE^96%G-IO]>1
MX=3/'Z'V^^7':7Q"\9_7ST$H%6L26IM*)S(EGTD2-?4"TP//'P3@*4-3E$*O
M<<2+EZ>NUF1WY[XHF.BDO954X= \+-+RJ^>C*F HI/1*+WE_EPDK,Y.GTKJ(
M+FQ44PGG-6F5&5JI/-_L)AP)+&;&O/81+/TJ11QCL% >2)KT!>>IA0(F7JQ)
MZ5264K,:Y&NX (G3PVXL]T=C;VCJ37)#\=<D$WHIM[OGR@7<S@N=@K2+^!K[
MM:WRHR2'[6:M1LJ,&/25W907_%*"1^0"R&52>07-)HN%2FJ]1K+R+L&*@="@
MB!E6>99FK).H&?9Z%TTC&EAS@Q4C*?)'%C;KHN[N9,H1Q$245E9"V$W0/!$S
MA4KWV*#1-F=&0  ]O^>X5?N@16LI+"V4%K G)7 *X]'T0< 24X^?ODF E<D\
MI:+*O2IS2?*.>VD<"!KM&%V@IP$JQ5+AV1&02\RM$2F,IK RER)E/&-]*UW=
M LR8AS 7"0I!W"9A18& G=EZP0+]4Q\$PEKS$(JW9K?!8A8:-ZFT)JT27Q^;
MY J[P_']W*&?TUH'5G3#$F!7J&^2&R=SWNC6Y%QS$$FL%,&&S B[8U,NP,)8
M*JMYKA)<J./9E)M0)(ETM4LJ[;C@V"*5<\^VO)$^^O5W+E?SU2EGR)PY HR5
M4#8UE4.E2@EQN+C@A>EBR<]0U&W-@U:B5)Y3(T .C;R2,$!(@R6+47=PZ,I-
MK%CE;L)BIF[ELLJ%-W9-4M\J:W0HK3<(K<IN(Z3)2(].R0D%AXB"/N&0)CV,
MT*T_AYE0%J CJCE^ %S+]@L,43284;@0JX#("F2 _!GIBC$^N+Y,&.4*WC/F
MAFNXXC&4CKT0/)1 7:OF5>TO!'X=58DIF"MWB(LVT)\JYM%/NH/Z<U/Y1U1Y
M[/7WWODO?\;QCYS*';-)>S0H=+OK#AZN=!UPJTRB,J4TG \^LPB'B&;?KH_F
M@WME&AK\B@Y;N%1QR,(D%=?2U$$B$D"IPP7=*V]E;LIB&\'?C!RLB+\ *C@H
MPQB" +8/N'*3"%]W=67GN)YX>8;/BSWP<\S55?/ZR4,ZX?;>F'%WQX9W&CP3
MP=JXJV[Y N7+C#<M<['>A.PC*IH56\L&@ZJ[\ NQ>= ZNH\8;G2;6Q#<CEK-
MSO'Q/6Z,,&2=0JU1P_L,!\9YEFM[R3:1XR[#3F%T% UQ!TU1/)\#^!247UMD
M@'() G(*TX&TIB%?Y\9J=%.(Y!$Z6MJ(7@-]8<(]A,>%X,IPL1Z2;6[ZDFZY
M@*$15W*._Z*JGO ^N%JM(AF6W?%R$>3G-[V[P-S'URCLOODVQ8<4C_%W+ ;#
MY^\_4$L#!!0    ( (J%=$^_D&N)3 0   P5   0    97%R+3(P,3DQ,3(P
M+GAS9,U8VV[C-A!]+]!_X.J=EF7OS4:<1=ML%@&2M$AW%P$6Q8*6:(>H1"HD
ME=@H^N\=4G>;5B2[#_M&:N;,G!E*QT.??=@D,7JB4C'!%UXP&GN(\E!$C*\7
M7J97^+WWX?SGG\Y>8?R)<BJ)IA%:;M'%Y=4MNO_U[AI=<:4)#RFZ$&&64*X1
M1@]:IW/??WY^'D4KQI6(,PT)U"@4B0_VKWE"=#<=C6$+J\D8WXHGFBRIQ)-Q
M,$/?QF_GKR?SZ>N_T#^_W/R+L6&AP@>:$*2)7%-]2Q*J4A+2A=?(1Q\SIK<D
M)5(;,GE*$S$()J:XF)K'ET(F%W1%LE@OO,>,Q&S%:.0AZ 97<_HHA\2TH!;@
M>3H2<@TNX\"_O[G^T](NH\>,_]WRWBQE7/I/?6->$D5+]\V>?Q$]F,UFOK56
MKA"(=81FQ5$U_2-= 9K.;_S<6+/HB'M_W2"1*;PF)*W<5T0MK6MAL(W#XP!/
M@Q(2BHQKN6T3430<K<637Q@-[-T.+),27M9#N,+JR!=1YL: P>%.-^&#V]]8
M' #&GZC2;DAN,Z!I&\0)"Y4;8TV.!B@6N@%@,.Y!VQT.0&]3JIQ'8RV.6I1.
MY8$D8#& ][O-324-C4X<?&-F/I&A%#$%!J'&=)/&A!,MY/82]E5#!.=9X@X2
M:>D;QCXX8?"BDH45[F50&Z"DWF\)/'1U0^I#/:Q,39@1+<*YT,3HG]VE*>,K
M89;FTYV;-GP&&#*++W=7+PN/;=QO();R#[*&;YE!H^MM%3BBH+S,I@U AT!F
M&P)M_9$!G/F[WF6 3-'H=WYNUW"D"I"V"O.Q%ZC"Q86H _;S#TD<9O'A!'ZK
M6U6(4BWOZ I9+9R;,UAXBB5I;(3./GN0=+7P0-9QJ=K?H:(1G&GI80)W*)SM
M^6X3BKQEB.*=[I9J"")2*C6#]Z16>O_T>J#?0^MI']$/54U,ED.K 0B-?[A"
MX+4>6LC.E_ _E^,W!,AO2Q/4(J1&W#E7'9HD\I'L6H0V3 ?$['")P^81#B:@
MD:.-B@IN PC450TC4.(&$G"/1CU3EP"3\TV?;)TCTX&D-J$3Z--8J_()KD/U
MKKMC=.DBXX 5:UR'&$S"-0ZZ6*@N8+G!=93A1%SS93\F362U.^5D]N;07CPJ
ME%V=DG]_0.WS8M2H?'G*:>Q.O'WREQBSP#5X>.[=0;A7]RN47>$:?XP@SO*?
M#D[79O#NITRQE"V4D:>9D<3@[4D4>@IC([T^.77W?:(OG6:4CW60@>PZ;Y2]
M7HT29!8#/\L7+CQ].K&+.N5PW/>T82P$OSV*2/?M]OB?41MKX+$<O%;VHE&"
M<@KFHGE\]F-;L<^AHP_%OVR6RL+[*%.1WMC_]CR4S\WYW7X>B80P?J5I8BYU
M'B)+I25\? M/R\R,U>8/K3E,LDQ$GRTPRJ1EZ2'.8ACYS22<^YIK,(S>WUO9
M5 81F;;_/GZ2(DL77AZ30<YR(L[K/_\/4$L#!!0    ( (J%=$]^J[!W; $
M +@"   4    97%R+3(P,3DQ,3(P7V-A;"YX;6R545U/PC 4?3?Q/]3ZW'4?
MQ,C"("K1D  Q& V)\:%L%VC<6F@[&#'^=]OA#!B-\:WWWG/N.?>TTZN*'&U
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M%,X6*9+;FO&\I,#LOS#[19=W_P%02P,$%     @ BH5T3TJX@)NQ!0  ^SD
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M,S8W,#AD.&LN:'1M4$L! A0#%     @ BH5T3R_REKSS!0  !0\  !$
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M2P$"% ,4    " "*A71/FJA#DB0'  !R1P  %               @ &.*
M97%R+3(P,3DQ,3(P7VQA8BYX;6Q02P$"% ,4    " "*A71/2KB F[$%  #[
M.0  %               @ 'D+P  97%R+3(P,3DQ,3(P7W!R92YX;6Q02P4&
2      < !P#! 0  QS4

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.19.3</span><table class="report" border="0" cellspacing="2" id="idp6702136240">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover Page<br></strong></div></th>
<th class="th"><div>Nov. 20, 2019</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">EQUITY RESIDENTIAL<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000906107<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Nov. 20,  2019<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">1-12252<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">13-3675988<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">Two North Riverside Plaza<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">Suite 400<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Chicago<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">IL<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">60606<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">312<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">474-1300<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">MD<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Shares of Beneficial Interest, $0.01 Par Value (Equity Residential)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">EQR<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=eqr_ErpopMember', window );">ERPOP [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">ERP OPERATING LIMITED PARTNERSHIP<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000931182<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Nov. 20,  2019<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">0-24920<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">36-3894853<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">Two North Riverside Plaza<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">Suite 400<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Chicago<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">IL<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">IL<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">7.57% Notes due August 15, 2026 (ERP Operating Limited Partnership)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_NoTradingSymbolFlag', window );">No Trading Symbol Flag</a></td>
<td class="text">true<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentInformationLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentInformationLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_NoTradingSymbolFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a security having no trading symbol.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_NoTradingSymbolFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LegalEntityAxis=eqr_ErpopMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LegalEntityAxis=eqr_ErpopMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>14
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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MMWF\81AU8\K(XK%T-8943OTJDH\ Q:X831F:3LTXXFBD(3^ G/,6+V2?$9/
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M_>%W$W;>V(/]Q\970=G"K[N07U!+ P04    " "*A71/F5R<(Q &  "<)P
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MX^R_V[,M@[P;2?#8N++M?Y/-J?6N&K.$H53F?=@6=;^]#/]H/8;A #D&R&O
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MG*'3LC$B>_ 23,EV+#X=40M,O],?C8?3R:0%:9$DDBIU^>L/'$]ZPPW*T8,
M7TB=0<BPL11+* 0Y^4[^"QA1FO';BFD* \OZ%]"R?A(2(O' F['+#'5(#>PF
MQ%;C\=88@13WC,=&E5Y;6_Z&"(32V)Y?6 E+D1@ (PN_!KLC L[OV2U]VSCF
MM8@Q1Y )WM8?@_&@8_=;1?-X+&0IY+$W'M5]M EY.,OC>M5\\TDRK2G'Z*)
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MH:LOX$]ISUJREM4CZ7IX#<]_ %!+ P04    " "*A71/NJ$YBM<!   R!@
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MY];0\$'B<UCQ',SI;G\*+TWRL&6=-XJ<[O9GJ,6@WLX%][]$\0-02P,$%
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MH(/Z+7#Y@(=[JS5G,22>\?W#Z#'XVANS"-B[>R6=^"/'\$?S'U!+ P04
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ML)\)VV$]=N'?(*EA.N_6_VATF<N@7?S-R$=*[4%?#?_)\@M02P$"% ,4
M" "*A71/'R// \     3 @  "P              @ $     7W)E;',O+G)E
M;'-02P$"% ,4    " "*A71/)^B'#H(   "Q    $               @ 'I
M    9&]C4')O<',O87!P+GAM;%!+ 0(4 Q0    ( (J%=$^B\@G*[@   "L"
M   1              "  9D!  !D;V-0<F]P<R]C;W)E+GAM;%!+ 0(4 Q0
M   ( (J%=$^97)PC$ 8  )PG   3              "  ;8"  !X;"]T:&5M
M92]T:&5M93$N>&UL4$L! A0#%     @ BH5T3ZA>C?)C P  $!(  !@
M         ( !]P@  'AL+W=O<FMS:&5E=',O<VAE970Q+GAM;%!+ 0(4 Q0
M   ( (J%=$\53-ZJ]@(  (P'   4              "  9 ,  !X;"]S:&%R
M9613=')I;F=S+GAM;%!+ 0(4 Q0    ( (J%=$^ZH3F*UP$  #(&   -
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64$L%!@     *  H @ (  &@5      $!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>d836708d8k_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31"
  xmlns:eqr="http://www.equityapartments.com/20191120"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="eqr-20191120.xsd" xlink:type="simple"/>
    <context id="P11_20_2019To11_20_2019">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000906107</identifier>
        </entity>
        <period>
            <startDate>2019-11-20</startDate>
            <endDate>2019-11-20</endDate>
        </period>
    </context>
    <context id="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000906107</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">eqr:ErpopMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2019-11-20</startDate>
            <endDate>2019-11-20</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey contextRef="P11_20_2019To11_20_2019">0000906107</dei:EntityCentralIndexKey>
    <dei:EntityCentralIndexKey contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">0000931182</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="P11_20_2019To11_20_2019">false</dei:AmendmentFlag>
    <dei:DocumentType contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">8-K</dei:DocumentType>
    <dei:DocumentType contextRef="P11_20_2019To11_20_2019">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">2019-11-20</dei:DocumentPeriodEndDate>
    <dei:DocumentPeriodEndDate contextRef="P11_20_2019To11_20_2019">2019-11-20</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="P11_20_2019To11_20_2019">EQUITY RESIDENTIAL</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="P11_20_2019To11_20_2019">MD</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="P11_20_2019To11_20_2019">1-12252</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="P11_20_2019To11_20_2019">13-3675988</dei:EntityTaxIdentificationNumber>
    <dei:EntityRegistrantName contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">ERP OPERATING LIMITED PARTNERSHIP</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">IL</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">0-24920</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">36-3894853</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">Two North Riverside Plaza</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine1 contextRef="P11_20_2019To11_20_2019">Two North Riverside Plaza</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">Suite 400</dei:EntityAddressAddressLine2>
    <dei:EntityAddressAddressLine2 contextRef="P11_20_2019To11_20_2019">Suite 400</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">Chicago</dei:EntityAddressCityOrTown>
    <dei:EntityAddressCityOrTown contextRef="P11_20_2019To11_20_2019">Chicago</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">IL</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressStateOrProvince contextRef="P11_20_2019To11_20_2019">IL</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="P11_20_2019To11_20_2019">60606</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="P11_20_2019To11_20_2019">312</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="P11_20_2019To11_20_2019">474-1300</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="P11_20_2019To11_20_2019">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="P11_20_2019To11_20_2019">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="P11_20_2019To11_20_2019">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="P11_20_2019To11_20_2019">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle contextRef="P11_20_2019To11_20_2019">Common Shares of Beneficial Interest, $0.01 Par Value (Equity Residential)</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="P11_20_2019To11_20_2019">EQR</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="P11_20_2019To11_20_2019">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">7.57% Notes due August 15, 2026 (ERP Operating Limited Partnership)</dei:Security12bTitle>
    <dei:NoTradingSymbolFlag contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">true</dei:NoTradingSymbolFlag>
    <dei:SecurityExchangeName contextRef="P11_20_2019To11_20_2019_ErpopMemberdeiLegalEntityAxis">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="P11_20_2019To11_20_2019">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>17
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "d836708d8k.htm": {
   "axisCustom": 0,
   "axisStandard": 1,
   "contextCount": 2,
   "dts": {
    "calculationLink": {
     "local": [
      "eqr-20191120_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "eqr-20191120_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "d836708d8k.htm"
     ]
    },
    "labelLink": {
     "local": [
      "eqr-20191120_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "eqr-20191120_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "eqr-20191120.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd",
      "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd",
      "https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd",
      "https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd",
      "http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 32,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2019-01-31": 3,
    "total": 3
   },
   "keyCustom": 0,
   "keyStandard": 97,
   "memberCustom": 1,
   "memberStandard": 0,
   "nsprefix": "eqr",
   "nsuri": "http://www.equityapartments.com/20191120",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "d836708d8k.htm",
      "contextRef": "P11_20_2019To11_20_2019",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:EntityRegistrantName",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "1001 - Document - Cover Page",
     "role": "http://www.equityapartments.com/role/CoverPage",
     "shortName": "Cover Page",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "d836708d8k.htm",
      "contextRef": "P11_20_2019To11_20_2019",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:EntityRegistrantName",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 1,
   "tag": {
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "dei_DocumentInformationLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Document Information [Line Items]"
       }
      }
     },
     "localname": "DocumentInformationLineItems",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_DocumentInformationTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package.",
        "label": "Document Information [Table]"
       }
      }
     },
     "localname": "DocumentInformationTable",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.",
        "label": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.",
        "label": "Entity [Domain]"
       }
      }
     },
     "localname": "EntityDomain",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LegalEntityAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The set of legal entities associated with a report.",
        "label": "Legal Entity [Axis]"
       }
      }
     },
     "localname": "LegalEntityAxis",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_NoTradingSymbolFlag": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a security having no trading symbol.",
        "label": "No Trading Symbol Flag"
       }
      }
     },
     "localname": "NoTradingSymbolFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_PreCommencementIssuerTenderOffer": {
     "auth_ref": [
      "r2"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.",
        "label": "Pre-commencement Issuer Tender Offer"
       }
      }
     },
     "localname": "PreCommencementIssuerTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_PreCommencementTenderOffer": {
     "auth_ref": [
      "r3"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.",
        "label": "Pre-commencement Tender Offer"
       }
      }
     },
     "localname": "PreCommencementTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r1"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_SolicitingMaterial": {
     "auth_ref": [
      "r4"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.",
        "label": "Soliciting Material"
       }
      }
     },
     "localname": "SolicitingMaterial",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "dei_WrittenCommunications": {
     "auth_ref": [
      "r6"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.",
        "label": "Written Communications"
       }
      }
     },
     "localname": "WrittenCommunications",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "eqr_ErpopMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Erpop [Member]",
        "verboseLabel": "ERPOP [Member]"
       }
      }
     },
     "localname": "ErpopMember",
     "nsuri": "http://www.equityapartments.com/20191120",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfStockDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Class of Stock [Domain]"
       }
      }
     },
     "localname": "ClassOfStockDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Class of Stock [Axis]"
       }
      }
     },
     "localname": "StatementClassOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.equityapartments.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    }
   },
   "unitCount": 0
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r1": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r2": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r3": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r4": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14a",
   "Subsection": "12"
  },
  "r5": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r6": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "425"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
