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Derivative Instruments - Effects of Qualifying and Non-Qualifying Hedges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Realized gain (loss) | $ 269 | $ (4,311) | $ 840
Net investment income | 5,525 | 5,879 | 5,515
Interest and debt expense | 336 | 331 | 283
Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Realized gain (loss) | 269 | (4,311) | 840
Net investment income | 5,525 | 5,879 | 5,515
Interest and debt expense | 336 | 331 | 283
Realized Gain (Loss) | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items |  |  | 0
Derivatives designated as hedging instruments |  |  | 0
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income | 0 | 0 | 0
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income | 8 | 7 | 39
Realized Gain (Loss) | Interest rate contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | (318) | (161) | (2,113)
Realized Gain (Loss) | Foreign currency contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | (2) | 3
Realized Gain (Loss) | Equity market contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 5,271 | 1,387 | (2,075)
Realized Gain (Loss) | Commodity contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 8 | 11
Realized Gain (Loss) | Credit contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | (4) | (4)
Realized Gain (Loss) | Reinsurance-related | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 522 | (968) | 622
Realized Gain (Loss) | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | (2,920) | (3,187) | 1,760
Net Investment Income | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items |  | (5) | (167)
Derivatives designated as hedging instruments |  | 5 | 167
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income | (3) | (1) | 2
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income | 59 | 54 | 62
Net Investment Income | Interest rate contracts | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items | (30) |  |
Derivatives designated as hedging instruments | 30 |  |
Net Investment Income | Interest rate contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Net Investment Income | Foreign currency contracts | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items | (2) |  |
Derivatives designated as hedging instruments | 2 |  |
Net Investment Income | Foreign currency contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 0 | 0
Net Investment Income | Equity market contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Net Investment Income | Commodity contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 0 | 0
Net Investment Income | Credit contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 0 | 0
Net Investment Income | Reinsurance-related | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Net Investment Income | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Interest and Debt Expense | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items |  | (5) | 156
Derivatives designated as hedging instruments |  | 5 | (156)
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income | 25 | 31 | (11)
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income | 0 | 0 | 0
Interest and Debt Expense | Interest rate contracts | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items | 27 |  |
Derivatives designated as hedging instruments | (27) |  |
Interest and Debt Expense | Interest rate contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Interest and Debt Expense | Foreign currency contracts | Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Hedged items | 0 |  |
Derivatives designated as hedging instruments | 0 |  |
Interest and Debt Expense | Foreign currency contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 0 | 0
Interest and Debt Expense | Equity market contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Interest and Debt Expense | Commodity contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 0 | 0
Interest and Debt Expense | Credit contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges |  | 0 | 0
Interest and Debt Expense | Reinsurance-related | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | 0 | 0 | 0
Interest and Debt Expense | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Non-Qualifying Hedges | $ 0 | $ 0 | $ 0

X
- Definition Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 815 -SubTopic 25 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480238/815-25-50-1 + Details
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- Definition Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 815 -SubTopic 25 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480238/815-25-50-1 + Details
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- Definition Amount of realized gain (loss) on investment in debt and equity securities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column C)(Footnote 4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column C)(Footnote 6)(e)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column C)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(7)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(7)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
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