<SEC-DOCUMENT>0001209191-18-011645.txt : 20180220
<SEC-HEADER>0001209191-18-011645.hdr.sgml : 20180220
<ACCEPTANCE-DATETIME>20180220201703
ACCESSION NUMBER:		0001209191-18-011645
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180215
FILED AS OF DATE:		20180220
DATE AS OF CHANGE:		20180220

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRUNO JOHN G
		CENTRAL INDEX KEY:			0001283118

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07933
		FILM NUMBER:		18626707

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Aon plc
		CENTRAL INDEX KEY:			0000315293
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		IRS NUMBER:				363051915
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		THE LEADENHALL BUILDING
		STREET 2:		122 LEADENHALL STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC3V 4AN
		BUSINESS PHONE:		(44) 20 7623 5500

	MAIL ADDRESS:	
		STREET 1:		THE LEADENHALL BUILDING
		STREET 2:		122 LEADENHALL STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC3V 4AN

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AON CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMBINED INTERNATIONAL CORP
		DATE OF NAME CHANGE:	19870504
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">Represents Class A Ordinary Shares issued upon the settlement of performance share unit awards originally granted approximately three years ago under the tenth cycle of the Company's Leadership Performance Program. The number of shares issued was determined by the Organization and Compensation Committee of the Board of Directors on February 15, 2018, based on the Company's performance for the period from January 1, 2015 to December 31, 2017.</footnote>
        <footnote id="F2">Includes shares acquired under the Aon employee stock purchase plan on December 29, 2017.</footnote>
        <footnote id="F3">Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.</footnote>
        <footnote id="F4">Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.</footnote>
        <footnote id="F5">The restricted share unit award converts to Class A Ordinary Shares on a 1-for-1 basis.  In accordance with U.K. law, the reporting person agreed to pay the issuer the nominal value of US$0.01 per share issued to the reporting person.</footnote>
        <footnote id="F6">The restricted share unit award vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan as follows: 33 1/3% of the award vests on each of the first through third anniversary of the date of the grant.</footnote>
        <footnote id="F7">A restricted share unit award was granted on February 19, 2015 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third aniversary of the date of grant.</footnote>
        <footnote id="F8">A restricted share unit award was granted on February 18, 2016 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third aniversary of the date of grant.</footnote>
        <footnote id="F9">A restricted share unit award was granted on February 16, 2017 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third aniversary of the date of grant.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Molly Johnson- pursuant to a power of attorney from John Bruno</signatureName>
        <signatureDate>2018-02-20</signatureDate>
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