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Derivative Financial Instruments - Schedule of Change in Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | $ (223) | $ 164
Recognized gains (losses) for hedged item | $ 1 | $ 0
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Benefits and other changes in policy reserves | Benefits and other changes in policy reserves
Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | $ (58) | $ 200
Recognized gains (losses) for hedged item | (10) | 0
Derivatives designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (1) | 0
Recognized gains (losses) for hedged item | 1 | 0
Derivatives designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 9 | 0
Recognized gains (losses) for hedged item | (10) | 0
Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (222) | 164
Recognized gains (losses) for hedged item | 0 | 0
Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (67) | 200
Recognized gains (losses) for hedged item | 0 | 0
Interest rate swaps | Derivatives designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Interest rate swaps | Derivatives designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 9 | 0
Recognized gains (losses) for hedged item | (10) | 0
Interest rate swaps | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 52 | (80)
Recognized gains (losses) for hedged item | 0 | 0
Interest rate swaps | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Foreign currency swaps | Derivatives designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (1) | 0
Recognized gains (losses) for hedged item | 1 | 0
Foreign currency swaps | Derivatives designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Equity options | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (234) | 250
Recognized gains (losses) for hedged item | 0 | 0
Equity options | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Futures contracts | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 5 | 6
Recognized gains (losses) for hedged item | 0 | 0
Futures contracts | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Other derivative investments | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (4) | 3
Recognized gains (losses) for hedged item | 0 | 0
Other derivative investments | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Other embedded derivatives | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 3
Recognized gains (losses) for hedged item | 0 | 0
Other embedded derivatives | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Indexed annuities/IUL embedded derivatives increase (decrease) | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | 0 | 0
Indexed annuities/IUL embedded derivatives increase (decrease) | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (67) | 200
Recognized gains (losses) for hedged item | 0 | 0
Reinsurance related embedded derivatives | Derivatives not designated as hedging instruments |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | (41) | (18)
Recognized gains (losses) for hedged item | 0 | 0
Reinsurance related embedded derivatives | Derivatives not designated as hedging instruments | Fair Value Hedging |  |
Derivative [Line Items] |  |
Recognized gains (losses) for derivatives | 0 | 0
Recognized gains (losses) for hedged item | $ 0 | $ 0

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes gain (loss) from derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C + Details
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