<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a01548-fc43-7a3d-9c5a-c43290343fdc,g:26783836-f3f4-4de2-8da2-e1c21d737149-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://brighthousefinancial.com/role/DocumentandEntityInformation" xlink:type="simple" xlink:href="bhf-20260818.xsd#DocumentandEntityInformation"/>
  <link:definitionLink xlink:role="http://brighthousefinancial.com/role/DocumentandEntityInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsLineItems_01a01548-fc43-7232-863c-07eab63881cc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityListingsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsTable_01a01548-fc43-7059-9c75-bb3234251d79" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityListingsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityListingsLineItems_01a01548-fc43-7232-863c-07eab63881cc" xlink:to="loc_dei_EntityListingsTable_01a01548-fc43-7059-9c75-bb3234251d79" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a01548-fc43-7731-a2d6-63b3896e6b1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntityListingsTable_01a01548-fc43-7059-9c75-bb3234251d79" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a01548-fc43-7731-a2d6-63b3896e6b1e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7731-a2d6-63b3896e6b1e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a01548-fc43-7731-a2d6-63b3896e6b1e" xlink:to="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7731-a2d6-63b3896e6b1e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a01548-fc43-7731-a2d6-63b3896e6b1e" xlink:to="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a01548-fc43-7e71-b48f-eea2b80745ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:to="loc_us-gaap_CommonStockMember_01a01548-fc43-7e71-b48f-eea2b80745ed" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_01a01548-fc43-7936-bea5-79610b2d7f0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_01a01548-fc43-7936-bea5-79610b2d7f0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesBPreferredStockMember_01a01548-fc43-7d98-a333-8ebb93f9a2d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeriesBPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:to="loc_us-gaap_SeriesBPreferredStockMember_01a01548-fc43-7d98-a333-8ebb93f9a2d5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesCPreferredStockMember_01a01548-fc43-7936-9e88-525fa3fe0cbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeriesCPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:to="loc_us-gaap_SeriesCPreferredStockMember_01a01548-fc43-7936-9e88-525fa3fe0cbb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesDPreferredStockMember_01a01548-fc43-7ec1-b4e9-32e8ea3a5dbe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeriesDPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:to="loc_us-gaap_SeriesDPreferredStockMember_01a01548-fc43-7ec1-b4e9-32e8ea3a5dbe" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_JuniorSubordinatedDebtMember_01a01548-fc43-7b68-bb15-a0be762bc1c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_JuniorSubordinatedDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a01548-fc43-7466-a42a-9517ba48e0f1" xlink:to="loc_us-gaap_JuniorSubordinatedDebtMember_01a01548-fc43-7b68-bb15-a0be762bc1c9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a01548-fc43-7f01-81c0-c2a673f3cfe3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityListingsLineItems_01a01548-fc43-7232-863c-07eab63881cc" xlink:to="loc_dei_Security12bTitle_01a01548-fc43-7f01-81c0-c2a673f3cfe3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a01548-fc43-7727-9925-e5981c5c22b1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityListingsLineItems_01a01548-fc43-7232-863c-07eab63881cc" xlink:to="loc_dei_TradingSymbol_01a01548-fc43-7727-9925-e5981c5c22b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a01548-fc43-7b77-bf29-5d0aa5cdca21" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityListingsLineItems_01a01548-fc43-7232-863c-07eab63881cc" xlink:to="loc_dei_SecurityExchangeName_01a01548-fc43-7b77-bf29-5d0aa5cdca21" xlink:type="arc" order="2"/>
  </link:definitionLink>
</link:linkbase>
