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Future Policy Benefits - Summary of Components of Liability for Future Policy Benefits (Detail) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
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Liability for Future Policy Benefit, Activity [Line Items] |  |
Total long-duration insurance contracts | $ 53,581 | $ 57,456
Deferred profit liability | 132 | 128
Cost of reinsurance | 61 | 71
Total future policy benefits | 53,774 | 57,655
Long-term Care Insurance |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Total long-duration insurance contracts | 41,024 | 43,929
Total future policy benefits | 41,024 | 43,929
Life Insurance |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Total long-duration insurance contracts | 1,585 | 1,698
Total future policy benefits | 1,585 | 1,698
Fixed annuities |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Total long-duration insurance contracts | 10,972 | 11,829
Total future policy benefits | $ 10,972 | $ 11,829

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- Definition Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(13)(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
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