    <SEC-DOCUMENT>0001099219-24-000028-index.html : 20240131
    <SEC-HEADER>0001099219-24-000028.hdr.sgml : 20240131
    <ACCEPTANCE-DATETIME>20240131163118
    ACCESSION NUMBER:		0001099219-24-000028
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		60
    CONFORMED PERIOD OF REPORT:	20240131
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20240131
    DATE AS OF CHANGE:		20240131

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			METLIFE INC
    		CENTRAL INDEX KEY:			0001099219
    		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
    		ORGANIZATION NAME:           	02 Finance
    		IRS NUMBER:				134075851
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-15787
    		FILM NUMBER:		24583385

    	BUSINESS ADDRESS:
    		STREET 1:		200 PARK AVENUE
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10166
    		BUSINESS PHONE:		212-578-5500

    	MAIL ADDRESS:
    		STREET 1:		200 PARK AVENUE
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10166
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>met-20240131.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: met-20240131.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>ex991earningsreleasetables.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: ex991earningsreleasetables.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>ex992qfsq423doc.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: ex992qfsq423doc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>4
    <FILENAME>ex993q42023totalaum.htm
    <DESCRIPTION>EX-99.3
    <TEXT>
    Document 4 - file: ex993q42023totalaum.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.4
    <SEQUENCE>5
    <FILENAME>ex9944q23supplementalsli.htm
    <DESCRIPTION>EX-99.4
    <TEXT>
    Document 5 - file: ex9944q23supplementalsli.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>6
    <FILENAME>met-20240131.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 6 - file: met-20240131.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>7
    <FILENAME>met-20240131_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: met-20240131_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>8
    <FILENAME>met-20240131_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 8 - file: met-20240131_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>9
    <FILENAME>met-20240131_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 9 - file: met-20240131_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>ex993q42023totalaum001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: ex993q42023totalaum001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>ex993q42023totalaum002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: ex993q42023totalaum002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>ex9944q23supplementalsli001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: ex9944q23supplementalsli001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>ex9944q23supplementalsli002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: ex9944q23supplementalsli002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>ex9944q23supplementalsli003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: ex9944q23supplementalsli003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>ex9944q23supplementalsli004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: ex9944q23supplementalsli004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>ex9944q23supplementalsli005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: ex9944q23supplementalsli005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>ex9944q23supplementalsli006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: ex9944q23supplementalsli006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>ex9944q23supplementalsli007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: ex9944q23supplementalsli007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>ex9944q23supplementalsli008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: ex9944q23supplementalsli008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>ex9944q23supplementalsli009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: ex9944q23supplementalsli009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>ex9944q23supplementalsli010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: ex9944q23supplementalsli010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>ex9944q23supplementalsli011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: ex9944q23supplementalsli011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>ex9944q23supplementalsli012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: ex9944q23supplementalsli012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>ex9944q23supplementalsli013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: ex9944q23supplementalsli013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>ex9944q23supplementalsli014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: ex9944q23supplementalsli014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>ex9944q23supplementalsli015.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: ex9944q23supplementalsli015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>ex9944q23supplementalsli016.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: ex9944q23supplementalsli016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>ex9944q23supplementalsli017.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: ex9944q23supplementalsli017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>ex9944q23supplementalsli018.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: ex9944q23supplementalsli018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>ex9944q23supplementalsli019.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: ex9944q23supplementalsli019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>ex9944q23supplementalsli020.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: ex9944q23supplementalsli020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>ex9944q23supplementalsli021.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: ex9944q23supplementalsli021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>ex9944q23supplementalsli022.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: ex9944q23supplementalsli022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>ex9944q23supplementalsli023.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: ex9944q23supplementalsli023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>ex9944q23supplementalsli024.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: ex9944q23supplementalsli024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>ex9944q23supplementalsli025.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: ex9944q23supplementalsli025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>ex9944q23supplementalsli026.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: ex9944q23supplementalsli026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>ex9944q23supplementalsli027.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: ex9944q23supplementalsli027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>ex9944q23supplementalsli028.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: ex9944q23supplementalsli028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>ex9944q23supplementalsli029.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: ex9944q23supplementalsli029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>ex9944q23supplementalsli030.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: ex9944q23supplementalsli030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>ex9944q23supplementalsli031.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: ex9944q23supplementalsli031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>ex9944q23supplementalsli032.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: ex9944q23supplementalsli032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>ex9944q23supplementalsli033.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: ex9944q23supplementalsli033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>ex9944q23supplementalsli034.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: ex9944q23supplementalsli034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>ex9944q23supplementalsli035.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: ex9944q23supplementalsli035.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>image9.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 47 - file: image9.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>imagk06.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 48 - file: imagk06.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>mllogonewa22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 49 - file: mllogonewa22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>navigatinglifetogethera04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 50 - file: navigatinglifetogethera04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>51
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 51 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>53
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 53 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>54
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 54 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>55
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 55 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>57
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 57 - file: FilingSummary.html

    Document 57 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>59
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 59 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>60
    <FILENAME>0001099219-24-000028-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 60 - file: 0001099219-24-000028-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>61
    <FILENAME>met-20240131_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 61 - file: met-20240131_htm.html

    Document 61 - RAW XML: met-20240131_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>