<SEC-DOCUMENT>0001193125-24-093194.txt : 20240411
<SEC-HEADER>0001193125-24-093194.hdr.sgml : 20240411
<ACCEPTANCE-DATETIME>20240411160538
ACCESSION NUMBER:		0001193125-24-093194
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		18
CONFORMED PERIOD OF REPORT:	20231231
FILED AS OF DATE:		20240411
DATE AS OF CHANGE:		20240411

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Merck & Co., Inc.
		CENTRAL INDEX KEY:			0000310158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				221918501
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06571
		FILM NUMBER:		24838538

	BUSINESS ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033
		BUSINESS PHONE:		908-740-4000

	MAIL ADDRESS:	
		STREET 1:		2000 GALLOPING HILL ROAD
		CITY:			KENILWORTH
		STATE:			NJ
		ZIP:			07033

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Merck & Co. Inc.
		DATE OF NAME CHANGE:	20091103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SCHERING PLOUGH CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom;width:1%"/>
<td style="width:58%"/>
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<td style="width:20%"/>
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<td style="width:2%"/></tr>
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<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#9746;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#9744;</td></tr>
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<td style="height:6pt"/>
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<td style="vertical-align:bottom"><div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">Non-accelerated&#160;filer</div></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#9744;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom">Smaller&#160;reporting&#160;company</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"><ix:nonNumeric name="dei:EntitySmallBusiness" contextRef="P01_01_2023To12_31_2023" format="ixt-sec:boolballotbox" id="ixv-1953">&#9744;</ix:nonNumeric></td></tr>
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<td colspan="2" style="height:6pt"/></tr>
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<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="width:82%"/>
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<td style="vertical-align:bottom;white-space:nowrap;text-align:center;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-bottom: 1pt solid rgb(0, 0, 0); display: inline-block; font-size: 8pt; font-family: &quot;Times New Roman&quot;; text-align: center; line-height: normal;">Document</div></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom;text-align:center;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-bottom: 1pt solid rgb(0, 0, 0); display: inline-block; font-size: 8pt; font-family: &quot;Times New Roman&quot;; text-align: center; line-height: normal;">Part of Form 10-K</div></td></tr>
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<td style="vertical-align:top"><div style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 4em; text-indent: 2em; font-size: 10pt; font-family: &quot;Times New Roman&quot;; line-height: normal;"><ix:nonNumeric name="dei:DocumentsIncorporatedByReferenceTextBlock" contextRef="P01_01_2023To12_31_2023" escape="true" id="ixv-1960">Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024, to be filed with the Securities and Exchange Commission within 120 days after the close of the fiscal year covered by this report</ix:nonNumeric></div></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top;text-align:center;">Part III</td></tr></table><div style="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&#160;</div><div style="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&#160;</div><div style="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&#160;</div></div></div><div style="margin-top:1em; margin-bottom:0em; page-break-before:always"></div><hr style="color:#999999;height:3px;width:100%"/><div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto"><div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: &quot;Times New Roman&quot;; text-align: center;"><div style="font-weight:bold;display:inline;">EXPLANATORY NOTE </div></div><ix:nonNumeric name="dei:AmendmentDescription" contextRef="P01_01_2023To12_31_2023" id="ixv-306"><div style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Merck&#160;&amp; Co., Inc. (the &#8220;Company&#8221;) filed its Annual Report on Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K</div> for the fiscal year ended December&#160;31, 2023 (the &#8220;Original Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K&#8221;)</div> with the Securities and Exchange Commission on February&#160;26, 2024. The Company is filing this Amendment No.&#160;1 (this &#8220;Amendment&#8221;) to the Original Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K</div> solely to correct the date of the Annual Meeting of Shareholders. In the Original Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K,</div> that date was inadvertently referenced as May&#160;18, 2024. The date of the Annual Meeting of Shareholders is May&#160;28, 2024. </div><div style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Accordingly, this Amendment is being filed solely to: </div><div style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</div>
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<td style="width:5%">&#160;</td>
<td style="width:3%;vertical-align:top;text-align:left;">&#8226;</td>
<td style="width:1%;vertical-align:top">&#160;</td>
<td style="vertical-align:top;text-align:left;"><div style="margin-top: 0pt; margin-bottom: 0pt; font-family: &quot;Times New Roman&quot;; font-size: 10pt; text-align: left; line-height: normal;">amend Part III, Items 10, 11, 12, 13 and 14 of the Original Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K</div> to correct the date of the Annual Meeting of Shareholders; </div></td></tr></table><div style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</div>
<table cellpadding="0" cellspacing="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%">
<tr style="page-break-inside:avoid">
<td style="width:5%">&#160;</td>
<td style="width:3%;vertical-align:top;text-align:left;">&#8226;</td>
<td style="width:1%;vertical-align:top">&#160;</td>
<td style="vertical-align:top;text-align:left;"><div style="margin-top: 0pt; margin-bottom: 0pt; font-family: &quot;Times New Roman&quot;; font-size: 10pt; text-align: left; line-height: normal;">correct the date of the Annual Meeting of Shareholders on the cover of the filing; and </div></td></tr></table><div style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</div>
<table cellpadding="0" cellspacing="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%">
<tr style="page-break-inside:avoid">
<td style="width:5%">&#160;</td>
<td style="width:3%;vertical-align:top;text-align:left;">&#8226;</td>
<td style="width:1%;vertical-align:top">&#160;</td>
<td style="vertical-align:top;text-align:left;"><div style="margin-top: 0pt; margin-bottom: 0pt; font-family: &quot;Times New Roman&quot;; font-size: 10pt; text-align: left; line-height: normal;">file new certifications of our principal executive officer and principal financial officer as exhibits to this Amendment under Item 15 of Part IV hereof pursuant to Rule <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">12b-15</div> under the Securities Exchange Act of 1934, as amended, and pursuant to Section&#160;302 of the Sarbanes-Oxley Act of 2002. </div></td></tr></table><div style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Amendment does not reflect any events occurring after the filing of the Original Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K</div> or modify or update the disclosure contained therein in any way other than as required to reflect the correction discussed above. Accordingly, this Amendment should be read in conjunction with the Original Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K.</div> </div></ix:nonNumeric> </div></div></div></div></div>


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<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">
 <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">Table of Contents </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top" align="center"><span style="font-weight:bold">Part III</span></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
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<td style="vertical-align:top">Item&#160;10.</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_1">Directors, Executive Officers and Corporate Governance</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">1</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top">Item 11.</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_2">Executive Compensation</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">1</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top">Item 12.</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_3">Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">2</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top">Item 13.</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_4">Certain Relationships and Related Transactions, and Director Independence</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">2</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top">Item 14.</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_5">Principal Accountant Fees and Services</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">2</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="4"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top"/>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top" align="center"><span style="font-weight:bold">Part IV</span></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom"/></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="4"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top">Item 15.</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_6">Exhibits and Financial Statement Schedules</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">3</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top"/>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><a href="#rom807955_7">Signatures</a></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
</table> <p style="font-size:18pt; margin-top:0pt; margin-bottom:0pt">&#160;</p>
</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">
 <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">PART III </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:9%;vertical-align:top" align="left" id="rom807955_1"><span style="font-weight:bold">Item&#8201;10.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Directors, Executive Officers and Corporate Governance. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information on directors and nominees is incorporated by reference from the discussion under Proposal 1. Election of Directors of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. Information on executive officers is set forth in Part I of the Original Form <span style="white-space:nowrap">10-K</span> on page <a href="http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/310158/000162828024006850/mrk-20231231.htm#if867e97bbc5e45a5b3d3d91a8ba0c4c7_67">41</a>. </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information on compliance with Section&#160;16(a) of the Securities Exchange Act of 1934, if applicable, is incorporated by reference from the discussion under the heading &#8220;Stock Ownership Information&#8221; of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company has a Code of Conduct &#8212; Our Values and Standards applicable to all employees, including the principal executive officer, principal financial officer, principal accounting officer and Controller. The Code of Conduct is available on the Company&#8217;s website at <span style="white-space:nowrap"><span style="white-space:nowrap"><span style="white-space:nowrap"><span style="white-space:nowrap">www.merck.com/company-overview/culture-and-values/code-of-</span></span></span></span> <span style="white-space:nowrap"><span style="white-space:nowrap">conduct/values-and-standards/.</span></span> The Company intends to disclose future amendments to certain provisions of the Code of Conduct, and waivers of the Code of Conduct granted to executive officers and directors, if any, on the website within four business days following the date of any amendment or waiver. Every Merck employee is responsible for adhering to business practices that are in accordance with the law and with ethical principles that reflect the highest standards of corporate and individual behavior. </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information on the identification of the audit committee and the audit committee financial expert is incorporated by reference from the discussion under the heading &#8220;Board Meetings and Committees&#8221; of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:9%;vertical-align:top" align="left" id="rom807955_2"><span style="font-weight:bold">Item&#8201;11.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Executive Compensation. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The information required on executive compensation is incorporated by reference from the discussion under the headings &#8220;Compensation Discussion and Analysis,&#8221; &#8220;Summary Compensation Table,&#8221; &#8220;All Other Compensation&#8221; table, &#8220;CEO Pay Ratio,&#8221; &#8220;Pay vs. Performance&#8221; table, &#8220;Grants of Plan-Based Awards&#8221; table, &#8220;Outstanding Equity Awards&#8221; table, &#8220;Option Exercises and Stock Vested&#8221; table, &#8220;Pension Benefits&#8221; table, &#8220;Nonqualified Deferred Compensation&#8221; table, and &#8220;Potential Payments Upon Termination or a Change in Control&#8221;, including the discussion under the subheadings &#8220;Separation&#8221; and &#8220;Change in Control,&#8221; as well as all footnote information to the various tables, of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information on director compensation is incorporated by reference from the discussion under the heading &#8220;Director Compensation&#8221; and related &#8220;2023 Schedule of Director Fees&#8221; table and &#8220;2023 Director Compensation&#8221; table of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information under the headings &#8220;Compensation and Management Development Committee Interlocks and Insider Participation&#8221; and &#8220;Compensation and Management Development Committee Report&#8221; is incorporated by reference from the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:center">1 </p>

</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">

<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:9%;vertical-align:top" align="left" id="rom807955_3"><span style="font-weight:bold">Item&#8201;12.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Information with respect to security ownership of certain beneficial owners and management is incorporated by reference from the discussion under the heading &#8220;Stock Ownership Information&#8221; of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">Equity Compensation Plan Information </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following table summarizes information about the options, warrants and rights and other equity compensation under the Company&#8217;s equity compensation plans as of the close of business on December&#160;31, 2023. The table does not include information about tax qualified plans such as the Merck U.S. Savings Plan. </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;width:84%;border:0;margin:0 auto">


<tr>

<td style="width:35%"/>

<td style="vertical-align:bottom;width:14%"/>
<td/>
<td/>
<td/>

<td style="vertical-align:bottom;width:13%"/>
<td/>
<td/>
<td/>

<td style="vertical-align:bottom;width:14%"/>
<td/>
<td/>
<td/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<td style="vertical-align:bottom"><span style="font-weight:bold">Plan Category</span></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom" colspan="2" align="center"><span style="font-weight:bold">Number&#160;of&#160;securities&#160;to&#160;be<br/>issued upon exercise of<br/>outstanding options,<br/>warrants and rights<br/>(a)</span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" colspan="2" align="center"><span style="font-weight:bold"><span style="white-space:nowrap">Weighted-average&#160;exercise</span><br/>price of outstanding<br/>options, warrants and<br/>rights<br/>(b)</span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom" colspan="2" align="center"><span style="font-weight:bold">Number&#160;of&#160;securities<br/>remaining&#160;available&#160;for<br/>future issuance under<br/>equity&#160;compensation&#160;plans<br/>(excluding securities<br/>reflected in column (a))<br/>(c)</span></td>
<td style="vertical-align:bottom">&#160;</td></tr>


<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Equity compensation plans approved by security holders<span style="font-style:italic"><sup style="font-size:75%; vertical-align:top">(1)</sup></span></p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom"><span style="font-style:italic"></span>&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">13,526,932<span style="font-style:italic"></span></td>
<td style="white-space:nowrap;vertical-align:bottom"><span style="font-style:italic"><sup style="font-size:75%; vertical-align:top">(2)</sup></span>&#160;</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">$</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">77.54</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">81,123,362</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Equity compensation plans not approved by security holders</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">&#8212;&#8194;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">&#8212;&#8194;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">&#8212;&#8194;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">13,526,932</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">$</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">77.54</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">81,123,362</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
</table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%;vertical-align:top" align="left"><span style="font-style:italic">(1)</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"><span style="font-style:italic">Includes options to purchase shares of Company Common Stock and other rights under the following shareholder-approved plans: the Merck&#160;&amp; Co., Inc. 2010 and 2019 Incentive Stock Plans, and the Merck&#160;&amp; Co., Inc. 2010 <span style="white-space:nowrap">Non-Employee</span> Directors Stock Option Plan.</span> </p></td></tr></table>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%;vertical-align:top" align="left"><span style="font-style:italic">(2)</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"><span style="font-style:italic">Excludes approximately 12,541,646 shares of restricted stock units and 1,966,333 performance share units (assuming maximum payouts) under the Merck Sharp&#160;&amp; Dohme 2010 and 2019 Incentive Stock Plans. Also excludes 157,619 shares of phantom stock deferred under the MSD Employee Deferral Program and 503,549 shares of phantom stock deferred under the Merck&#160;&amp; Co., Inc. Plan for Deferred Payment of Directors&#8217; Compensation.</span> </p></td></tr></table> <p style="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:9%;vertical-align:top" align="left" id="rom807955_4"><span style="font-weight:bold">Item&#8201;13.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Certain Relationships and Related Transactions, and Director Independence. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information on transactions with related persons is incorporated by reference from the discussion under the heading &#8220;Related Person Transactions&#8221; of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The required information on director independence is incorporated by reference from the discussion under the heading &#8220;Independence of Directors&#8221; of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p> <p style="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:9%;vertical-align:top" align="left" id="rom807955_5"><span style="font-weight:bold">Item&#8201;14.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Principal Accountant Fees and Services. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The information required for this item is incorporated by reference from the discussion under Proposal 4. Ratification of Appointment of Independent Registered Public Accounting Firm for 2024 beginning with the caption <span style="white-space:nowrap">&#8220;Pre-Approval</span> Policy for Services of Independent Registered Public Accounting Firm&#8221; through &#8220;Fees for Services Provided by the Independent Registered Public Accounting Firm&#8221; of the Company&#8217;s Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024. </p>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:center">2 </p>

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 <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:center">PART IV </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="width:9%;vertical-align:top" align="left" id="rom807955_6"><span style="font-weight:bold">Item&#8201;15.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Exhibits and Financial Statement Schedules. </p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="width:4%;vertical-align:top" align="left">(a)</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left">The following documents are filed as part of this Form <span style="white-space:nowrap">10-K/A</span> </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="width:3%;vertical-align:top" align="left"><span style="font-weight:bold">3.</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;font-weight:bold;text-align:left">Exhibits </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="vertical-align:bottom;white-space:nowrap" align="center"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:inline-block; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Exhibit<br/>Number</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom;white-space:nowrap"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman;font-weight:bold">Description</p></td></tr>


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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;1.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312509223917/dex31.htm">Restated Certificate of Incorporation of Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. (November 3, 2009) &#8212; Incorporated by reference to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed November<span style="text-decoration:underline"></span>&#160;4, 2009 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;1.2</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015822000006/exhibit31-byxlawsasamended.htm"><span style="white-space:nowrap">By-Laws</span> of Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. (effective March<span style="text-decoration:underline"></span>&#160;22, 2022) &#8212; Incorporated by reference to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed March<span style="text-decoration:underline"></span>&#160;25, 2022 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom">Indenture, dated as of April&#160;1, 1991, between Merck Sharp&#160;&amp; Dohme Corp. (f/k/a Schering Corporation) and U.S. Bank Trust National Association (as successor to Morgan Guaranty Trust Company of New York), as Trustee (the 1991 Indenture) &#8212; Incorporated by reference to Exhibit 4 to MSD&#8217;s Registration Statement on Form <span style="white-space:nowrap">S-3</span> (No. <span style="white-space:nowrap">33-39349)</span></td></tr>
<tr style="font-size:1pt">
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.2</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/64978/0000950123-97-008101.txt">First Supplemental Indenture to the 1991 Indenture, dated as of October<span style="text-decoration:underline"></span>&#160;1, 1997 &#8212; Incorporated by reference to Exhibit 4(b) to MSD&#8217;s Registration Statement on Form <span style="white-space:nowrap">S-3</span> filed September<span style="text-decoration:underline"></span>&#160;25, 1997 (No. <span style="white-space:nowrap">333-36383)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.3</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312509223917/dex43.htm">Second Supplemental Indenture to the 1991 Indenture, dated November<span style="text-decoration:underline"></span>&#160;3, 2009 &#8212; Incorporated by reference to Exhibit 4.3 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed November<span style="text-decoration:underline"></span>&#160;4, 2009 <span style="white-space:nowrap">(No.1-6571)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.4</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312512216683/d318209dex41.htm">Third Supplemental Indenture to the 1991 Indenture, dated May<span style="text-decoration:underline"></span>&#160;1, 2012 &#8212; Incorporated by reference to Exhibit 4.1 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-Q</span> Quarterly Report for the period ended March<span style="text-decoration:underline"></span>&#160;31, 2012 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="height:6pt" colspan="2"/></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.5</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000095012303013260/y92128exv4w1.txt">Indenture, dated November<span style="text-decoration:underline"></span>&#160;26, 2003, between Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. (f/k/a Schering-Plough Corporation) and The Bank of New York as Trustee (the 2003 Indenture) &#8212; Incorporated by reference to Exhibit 4.1 to Schering-Plough&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed November<span style="text-decoration:underline"></span>&#160;28, 2003 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.6</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000095012303013260/y92128exv4w3.txt">Second Supplemental Indenture to the 2003 Indenture (including Form of Note), dated November<span style="text-decoration:underline"></span>&#160;26, 2003 &#8212; Incorporated by reference to Exhibit 4.3 to Schering-Plough&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed November<span style="text-decoration:underline"></span>&#160;28, 2003 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.7</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000095012307012711/y39738exv4w1.htm">Third Supplemental Indenture to the 2003 Indenture (including Form of Note), dated September<span style="text-decoration:underline"></span>&#160;17, 2007 &#8212; Incorporated by reference to Exhibit 4.1 to Schering-Plough&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed September<span style="text-decoration:underline"></span>&#160;17, 2007 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.8</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312509223917/dex44.htm">Fifth Supplemental Indenture to the 2003 Indenture, dated November<span style="text-decoration:underline"></span>&#160;3, 2009 &#8212; Incorporated by reference to Exhibit 4.4 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed November<span style="text-decoration:underline"></span>&#160;4, 2009 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr></table>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:center">3 </p>

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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.9</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312510278450/dex41.htm">Indenture, dated as of January<span style="text-decoration:underline"></span>&#160;6, 2010, between Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. and U.S. Bank Trust National Association, as Trustee &#8212; Incorporated by reference to Exhibit 4.1 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed December<span style="text-decoration:underline"></span>&#160;10, 2010 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.10</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015821000004/exhibit410-merckdescriptio.htm">Description of the Registrant&#8217;s Common Stock&#8212;Incorporated by reference to Exhibit 4.10 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2020 filed February<span style="text-decoration:underline"></span>&#160;25, 2021 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.11</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015821000004/exhibit411-merckdescriptio.htm">Description of the Registrant&#8217;s 1.125% Notes due 2021, 1.875% Notes due 2026, and 2.500% Notes due 2034&#8212;Incorporated by reference to Exhibit 4.11 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2020 filed February<span style="text-decoration:underline"></span>&#160;25, 2021 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
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<td style="vertical-align:top;white-space:nowrap">&#8199;&#8199;4.12</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015821000004/exhibit412-merckdescriptio.htm">Description of the Registrant&#8217;s 0.500% Notes due 2024 and 1.375% Notes due 2036&#8212;Incorporated by reference to Exhibit 4.12 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2020 filed February<span style="text-decoration:underline"></span>&#160;25, 2021 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">*10.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000130817915000131/lmrk2015_def14a.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. Executive Incentive Plan (as amended and restated effective June<span style="text-decoration:underline"></span>&#160;1, 2015) &#8212; Incorporated by reference to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Schedule 14A filed April<span style="text-decoration:underline"></span>&#160;13, 2015 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="height:6pt" colspan="2"/></tr>
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<td style="vertical-align:top;white-space:nowrap">*10.2</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015820000005/ex102deferralprograme.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. Deferral Program Including the Base Salary Deferral Plan (Amended and Restated effective December<span style="text-decoration:underline"></span>&#160;1, 2019)&#8212;Incorporated by reference to Exhibit 10.2 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2019 filed February<span style="text-decoration:underline"></span>&#160;26, 2020 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
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<td style="vertical-align:top;white-space:nowrap">*10.3</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000130817915000131/lmrk2015_def14a.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan (as amended and restated June<span style="text-decoration:underline"></span>&#160;1, 2015) &#8212; Incorporated by reference to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Schedule 14A filed April<span style="text-decoration:underline"></span>&#160;13, 2015 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.4</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312513084618/d438975dex1019.htm">Form of stock option terms for 2013 quarterly and annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.19 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2012 filed February<span style="text-decoration:underline"></span>&#160;28, 2013 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.5</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015815000005/ex1018stockoptiontermsfor2.htm">Form of stock option terms for 2014 quarterly and annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.18 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2014 filed February<span style="text-decoration:underline"></span>&#160;27, 2015 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.6</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015816000063/ex10202015nqsograntsunderm.htm">Form of stock option terms for 2015 quarterly and annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.20 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2015 filed February<span style="text-decoration:underline"></span>&#160;26, 2016 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.7</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex107-2017annualnqsotermsc.htm">Form of stock option terms for 2017 annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.7 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr></table>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:center">4 </p>

</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">

<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;width:100%;border:0;margin:0 auto">


<tr>

<td/>

<td style="vertical-align:bottom;width:3%"/>
<td style="width:3%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:88%"/></tr>

<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.8</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex108-2019annualnqsotermsa.htm">Form of stock option terms for 2019 annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.8 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.9</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015818000005/ex1012_2018nqsogranttermsu.htm">Form of stock option terms for 2018 quarterly and annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.12 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2017 filed February<span style="text-decoration:underline"></span>&#160;27, 2018 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.10</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015817000010/ex10192016nqsograntsunderm.htm">Form of stock option terms for 2016 quarterly and annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2010 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.19 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2016 filed February<span style="text-decoration:underline"></span>&#160;28, 2017 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.11</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000114036119006720/mrk-def14a_052819.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Appendix C to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Schedule 14A filed April<span style="text-decoration:underline"></span>&#160;8, 2019 (No. <span style="white-space:nowrap">1-6571)</span> and to the Registration Statement on Form <span style="white-space:nowrap">S-8</span> filed August<span style="text-decoration:underline"></span>&#160;12, 2019 to register 111,000,000 shares under the 2019 Incentive Stock Plan (File No.<span style="text-decoration:underline"></span><span style="white-space:nowrap">&#160;333-233226)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.12</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000119312512485851/d445500dex101.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. Change in Control Separation Benefits Plan (effective as amended and restated, as of January<span style="text-decoration:underline"></span>&#160;1, 2013) &#8212; Incorporated by reference to Exhibit 10.1 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Current Report on Form <span style="white-space:nowrap">8-K</span> filed November<span style="text-decoration:underline"></span>&#160;29, 2012 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.13</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1013-plansepmrk2019.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. U.S. Separation Benefits Plan (amended and restated as of January<span style="text-decoration:underline"></span>&#160;1, 2019) as further amended by Amendments <span style="white-space:nowrap">2019-1</span> (as of December<span style="text-decoration:underline"></span>&#160;19, 2019), <span style="white-space:nowrap">2020-1</span> (as of February<span style="text-decoration:underline"></span>&#160;25, 2020), <span style="white-space:nowrap">2020-2</span> (as of December<span style="text-decoration:underline"></span>&#160;10, 2020), <span style="white-space:nowrap">2021-1</span> (as of March<span style="text-decoration:underline"></span>&#160;31, 2021), <span style="white-space:nowrap">2021-2</span> (as of December<span style="text-decoration:underline"></span>&#160;16, 2021), <span style="white-space:nowrap">2022-1</span> (as of December<span style="text-decoration:underline"></span>&#160;14, 2022) and <span style="white-space:nowrap">2022-2</span> (as of December<span style="text-decoration:underline"></span>&#160;13, 2021)&#8212;Incorporated by reference to Exhibit 10.13 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.14</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/64978/0000950123-96-004374.txt">Retirement Plan for the Directors of Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. (amended and restated June<span style="text-decoration:underline"></span>&#160;21, 1996) &#8212; Incorporated by reference to Exhibit 10.C to MSD&#8217;s Form <span style="white-space:nowrap">10-Q</span> Quarterly Report for the period ended June<span style="text-decoration:underline"></span>&#160;30, 1996 filed August<span style="text-decoration:underline"></span>&#160;13, 1996 (No. <span style="white-space:nowrap">1-3305)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.15</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015822000003/exhibit1017-planfordeferre.htm">Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. Plan for Deferred Payment of Directors&#8217; Compensation (Amended and Restated effective as of January<span style="text-decoration:underline"></span>&#160;1, 2022)&#8212;Incorporated by reference to Exhibit 10.17 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2021 filed February<span style="text-decoration:underline"></span>&#160;25, 2022 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.16</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015819000014/a2018form10-k_ex1028xoffer.htm">Offer Letter between Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. and Jennifer Zachary, dated March<span style="text-decoration:underline"></span>&#160;16, 2018&#8212;Incorporated by reference to Exhibit 10.28 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2018 filed February<span style="text-decoration:underline"></span>&#160;27, 2019 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr></table>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:center">5 </p>

</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">

<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;width:100%;border:0;margin:0 auto">


<tr>

<td/>

<td style="vertical-align:bottom;width:3%"/>
<td style="width:3%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:88%"/></tr>

<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.17</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015821000004/ex1023-2021annualnqsoterms.htm">Form of stock option terms for 2021 annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.23 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2020 filed February<span style="text-decoration:underline"></span>&#160;25, 2021 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.18</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015821000004/ex10-24x2021annualrsuterms.htm">Form of restricted stock unit terms for 2021 annual grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.24 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2020 filed February<span style="text-decoration:underline"></span>&#160;25, 2021 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.19</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015822000003/exhibit1024-2022annualnqso.htm">Form of stock option terms for 2022 annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.24 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2021 filed February<span style="text-decoration:underline"></span>&#160;25, 2022 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.20</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000031015822000003/exhibit1025-2022annualrsut.htm">Form of restricted stock unit terms for 2022 annual grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.25 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2021 filed February<span style="text-decoration:underline"></span>&#160;25, 2022 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.21</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1021-2020annualnqsoterms.htm">Form of stock option terms for 2020 annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.21 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.22</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1022-2020annualrsutermsa.htm">Form of restricted stock unit terms for 2020 annual grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.22 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.23</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1023-2021annualpsuterms.htm">2021 Performance Share Unit terms for grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.23 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.24</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1024-2021specialretentio.htm">Terms for Restricted Stock Unit Grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.24 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.25</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1025-2022annualrsutermsa.htm">Restricted stock unit terms for August<span style="text-decoration:underline"></span>&#160;3, 2022 grant to Chirfi Guindo under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.25 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.26</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1026-2022annualpsutermsa.htm">Performance share unit terms for August<span style="text-decoration:underline"></span>&#160;3, 2022 grant to Chirfi Guindo under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan&#8212;Incorporated by reference to Exhibit 10.26 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.27</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1027-2023annualnqsoterms.htm">Form of stock option terms for 2023 annual <span style="white-space:nowrap">non-qualified</span> option grants under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.27 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr></table>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:center">6 </p>

</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>


<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">

<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;width:100%;border:0;margin:0 auto">


<tr>

<td/>

<td style="vertical-align:bottom;width:3%"/>
<td style="width:3%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:88%"/></tr>

<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.28</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1028-2022annualpsutermsa.htm">2022 Performance Share Unit terms for grant under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.28 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.29</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1029-2023annualpsutermsa.htm">2023 Performance Share Unit terms for grant under the Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. 2019 Incentive Stock Plan &#8212; Incorporated by reference to Exhibit 10.29 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">*10.30</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex1030-mrkchirfiguindooffe.htm">Offer Letter between Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. and Chirfi Guindo, dated June<span style="text-decoration:underline"></span>&#160;8, 2022&#8212;Incorporated by reference to Exhibit 10.30 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2022 filed February<span style="text-decoration:underline"></span>&#160;24, 2023 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;21</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex21-subsidiarylistasof123.htm">Subsidiaries of Merck<span style="text-decoration:underline"></span>&#160;&amp; Co., Inc. &#8212; Incorporated by reference to Exhibit 21 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;23</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex23-consentofindependentr.htm">Consent of Independent Registered Public Accounting Firm &#8212; Incorporated by reference to Exhibit 23 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;24.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex241-powerofattorney.htm">Power of Attorney &#8212; Incorporated by reference to Exhibit 24.1 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;24.2</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex242-certificationofboard.htm">Certified Resolution of Board of Directors &#8212; Incorporated by reference to Exhibit 24.2 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;31.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex311-rule13ax14a15dx14ace.htm">Rule <span style="white-space:nowrap"><span style="white-space:nowrap">13a-14(a)/15d-14(a)</span></span> Certification of Chief Executive Officer &#8212; Incorporated by reference to Exhibit 31.1 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;31.2</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex312-rule13ax14a15dx14ace.htm">Rule <span style="white-space:nowrap"><span style="white-space:nowrap">13a-14(a)/15d-14(a)</span></span> Certification of Chief Financial Officer &#8212; Incorporated by reference to Exhibit 31.2 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;31.3</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="d807955dex313.htm">Rule <span style="white-space:nowrap"><span style="white-space:nowrap">13a-14(a)/15d-14(a)</span></span> Certification of Chief Executive Officer </a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;31.4</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="d807955dex314.htm">Rule <span style="white-space:nowrap"><span style="white-space:nowrap">13a-14(a)/15d-14(a)</span></span> Certification of Chief Financial Officer </a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;32.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex321-section1350certifica.htm">Section<span style="text-decoration:underline"></span>&#160;1350 Certification of Chief Executive Officer &#8212; Incorporated by reference to Exhibit 32.1 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;32.2</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex322-section1350certifica.htm">Section<span style="text-decoration:underline"></span>&#160;1350 Certification of Chief Financial Officer &#8212; Incorporated by reference to Exhibit 32.2 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">&#8199;97</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">&#8212;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"><a href="http://www.sec.gov/Archives/edgar/data/310158/000162828024006850/ex97-merckrecoupmentpolicy.htm">Policy and Procedures for Recoupment of Incentive-Based Compensation &#8212; Incorporated by reference to Exhibit 10.28 to Merck<span style="text-decoration:underline"></span>&#160;&amp; Co, Inc.&#8217;s Form <span style="white-space:nowrap">10-K</span> Annual Report for the fiscal year ended December<span style="text-decoration:underline"></span>&#160;31, 2023 filed February<span style="text-decoration:underline"></span>&#160;26, 2024 (No. <span style="white-space:nowrap">1-6571)</span></a></td></tr></table>
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<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 31.3 </B></P>
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<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Date: April&nbsp;11, 2024 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<Center><DIV STYLE="width:8.5in" align="left">
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<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Date: April&nbsp;11, 2024 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>7
<FILENAME>mrk-20231231_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
<XBRL>
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<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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CurrentFiscalYearEndDate" xml:lang="en-US">Current Fiscal Year End Date</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentAnnualReport" xlink:label="loc_dei_DocumentAnnualReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentAnnualReport" xml:lang="en-US">Document Annual Report</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFinStmtErrorCorrectionFlag" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xml:lang="en-US">Document Fiscal Period Focus</label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentsIncorporatedByReferenceTextBlock" xml:lang="en-US">Documents Incorporated by Reference [Text Block]</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentTransitionReport" xlink:label="loc_dei_DocumentTransitionReport" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentTransitionReport" xml:lang="en-US">Document Transition Report</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCurrentReportingStatus" xml:lang="en-US">Entity Current Reporting Status</label>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.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>
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<loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory" />
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityFilerCategory" xml:lang="en-US">Entity Filer Category</label>
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>8
<FILENAME>mrk-20231231_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
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<span style="display: none;">v3.24.1.u1</span><table class="report" border="0" cellspacing="2" id="idm140432716469984">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cover - USD ($)<br></strong></div></th>
<th class="th" colspan="1">12 Months Ended</th>
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<th class="th"><div>Dec. 31, 2023</div></th>
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<td class="text">Merck&#160;& Co., Inc. (the &#8220;Company&#8221;) filed its Annual Report on Form 10-K for the fiscal year ended December&#160;31, 2023 (the &#8220;Original Form 10-K&#8221;) with the Securities and Exchange Commission on February&#160;26, 2024. The Company is filing this Amendment No.&#160;1 (this &#8220;Amendment&#8221;) to the Original Form 10-K solely to correct the date of the Annual Meeting of Shareholders. In the Original Form 10-K, that date was inadvertently referenced as May&#160;18, 2024. The date of the Annual Meeting of Shareholders is May&#160;28, 2024. Accordingly, this Amendment is being filed solely to: &#160;


&#160;
&#8226;
&#160;
amend Part III, Items 10, 11, 12, 13 and 14 of the Original Form 10-K to correct the date of the Annual Meeting of Shareholders; &#160;


&#160;
&#8226;
&#160;
correct the date of the Annual Meeting of Shareholders on the cover of the filing; and &#160;


&#160;
&#8226;
&#160;
file new certifications of our principal executive officer and principal financial officer as exhibits to this Amendment under Item 15 of Part IV hereof pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended, and pursuant to Section&#160;302 of the Sarbanes-Oxley Act of 2002. This Amendment does not reflect any events occurring after the filing of the Original Form 10-K or modify or update the disclosure contained therein in any way other than as required to reflect the correction discussed above. Accordingly, this Amendment should be read in conjunction with the Original Form 10-K. <span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntitySmallBusiness', window );">Entity Small Business</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityPublicFloat', window );">Entity Public Float</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 292,929,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">126 East Lincoln Avenue<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Rahway<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">NJ<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">07065<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock ($0.50 par value)<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">MRK<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">908<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">740-4000<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">NJ<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">22-1918501<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityInteractiveDataCurrent', window );">Entity Interactive Data Current</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentFinStmtErrorCorrectionFlag', window );">Document Financial Statement Error Correction [Flag]</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,532,643,872<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentsIncorporatedByReferenceTextBlock', window );">Documents Incorporated by Reference [Text Block]</a></td>
<td class="text">Proxy Statement for the Annual Meeting of Shareholders to be held May&#160;28, 2024, to be filed with the Securities and Exchange Commission within 120 days after the close of the fiscal year covered by this report<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2023<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">FY<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=mrk_A0.500NotesDue2024Member', window );">A 0.500 Notes due 2024 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">0.500% Notes due 2024<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">MRK 24<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=mrk_A1.875NotesDue2026Member', window );">A 1.875 Notes due 2026 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">1.875% Notes due 2026<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">MRK/26<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=mrk_A2.500NotesDue2034Member', window );">A 2.500 Notes due 2034 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">2.500% Notes due 2034<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">MRK/34<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=mrk_A1.375NotesDue2036Member', window );">A 1.375 Notes due 2036 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">1.375% Notes due 2036<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">MRK 36A<span></span>
</td>
<td class="text">&#160;<span></span>
</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="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Description of changes contained within amended document.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_AmendmentDescription</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_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_CurrentFiscalYearEndDate</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:gMonthDayItemType</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_DocumentAnnualReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as an annual report.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-K<br> -Number 249<br> -Section 310<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 20-F<br> -Number 249<br> -Section 220<br> -Subsection f<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 40-F<br> -Number 249<br> -Section 240<br> -Subsection f<br></p></div>
<a href="javascript:void(0);" onclick="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_DocumentAnnualReport</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_DocumentFinStmtErrorCorrectionFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicates whether any of the financial statement period in the filing include a restatement due to error correction.</p></div>
<a href="javascript:void(0);" onclick="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 S-K<br> -Number 229<br> -Section 402<br> -Subsection w<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-K<br> -Number 249<br> -Section 310<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 20-F<br> -Number 249<br> -Section 220<br> -Subsection f<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 40-F<br> -Number 249<br> -Section 240<br> -Subsection f<br></p></div>
<a href="javascript:void(0);" onclick="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_DocumentFinStmtErrorCorrectionFlag</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_DocumentFiscalPeriodFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_DocumentFiscalPeriodFocus</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:fiscalPeriodItemType</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_DocumentFiscalYearFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_DocumentFiscalYearFocus</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:gYearItemType</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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_DocumentTransitionReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as a transition report.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Forms 10-K, 10-Q, 20-F<br> -Number 240<br> -Section 13<br> -Subsection a-1<br></p></div>
<a href="javascript:void(0);" onclick="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_DocumentTransitionReport</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_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_DocumentsIncorporatedByReferenceTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Documents incorporated by reference.</p></div>
<a href="javascript:void(0);" onclick="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-23<br></p></div>
<a href="javascript:void(0);" onclick="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_DocumentsIncorporatedByReferenceTextBlock</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>dtr-types:textBlockItemType</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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityCommonStockSharesOutstanding</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:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityCurrentReportingStatus</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:yesNoItemType</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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityFilerCategory</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:filerCategoryItemType</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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityInteractiveDataCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).</p></div>
<a href="javascript:void(0);" onclick="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 S-T<br> -Number 232<br> -Section 405<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityInteractiveDataCurrent</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:yesNoItemType</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_EntityPublicFloat">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityPublicFloat</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:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityShellCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityShellCompany</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_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a Smaller Reporting Company (SRC).</p></div>
<a href="javascript:void(0);" onclick="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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_EntitySmallBusiness</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_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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-2<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityVoluntaryFilers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_EntityVoluntaryFilers</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:yesNoItemType</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_EntityWellKnownSeasonedIssuer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.</p></div>
<a href="javascript:void(0);" onclick="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 405<br></p></div>
<a href="javascript:void(0);" onclick="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_EntityWellKnownSeasonedIssuer</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:yesNoItemType</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_IcfrAuditorAttestationFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-K<br> -Number 249<br> -Section 310<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 20-F<br> -Number 249<br> -Section 220<br> -Subsection f<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 40-F<br> -Number 249<br> -Section 240<br> -Subsection f<br></p></div>
<a href="javascript:void(0);" onclick="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_IcfrAuditorAttestationFlag</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_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="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_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="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="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>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
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<a href="javascript:void(0);" onclick="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="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="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td><strong> Name:</strong></td>
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<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>12
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
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    <dei:AmendmentDescription contextRef="P01_01_2023To12_31_2023" id="ixv-306">Merck&#160;&amp; Co., Inc. (the &#x201c;Company&#x201d;) filed its Annual Report on Form 10-K for the fiscal year ended December&#160;31, 2023 (the &#x201c;Original Form 10-K&#x201d;) with the Securities and Exchange Commission on February&#160;26, 2024. The Company is filing this Amendment No.&#160;1 (this &#x201c;Amendment&#x201d;) to the Original Form 10-K solely to correct the date of the Annual Meeting of Shareholders. In the Original Form 10-K, that date was inadvertently referenced as May&#160;18, 2024. The date of the Annual Meeting of Shareholders is May&#160;28, 2024. Accordingly, this Amendment is being filed solely to: &#160;


&#160;
&#x2022;
&#160;
amend Part III, Items 10, 11, 12, 13 and 14 of the Original Form 10-K to correct the date of the Annual Meeting of Shareholders; &#160;


&#160;
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correct the date of the Annual Meeting of Shareholders on the cover of the filing; and &#160;


&#160;
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file new certifications of our principal executive officer and principal financial officer as exhibits to this Amendment under Item 15 of Part IV hereof pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended, and pursuant to Section&#160;302 of the Sarbanes-Oxley Act of 2002. This Amendment does not reflect any events occurring after the filing of the Original Form 10-K or modify or update the disclosure contained therein in any way other than as required to reflect the correction discussed above. Accordingly, this Amendment should be read in conjunction with the Original Form 10-K. </dei:AmendmentDescription>
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