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Derivatives (Primary Risks) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | $ 264,833 |  | $ 264,833 |  | $ 265,548
Estimated Fair Value Assets | 7,477 |  | 7,477 |  | 8,212
Estimated Fair Value Liabilities | 7,543 |  | 7,543 |  | 7,259
Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net | 2 | $ 4 | 14 | $ (6) |
Accumulated Other Comprehensive Income Loss | (1,900) |  | (1,900) |  | 357
Cash Flow Hedges [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Gain (Loss) on Derivative, Net | 0 | 0 | 0 | 0 |
Cash Flow Hedges [Member] | Foreign currency swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Gain (Loss) on Derivative, Net | 0 | 0 | 0 | 0 |
Cash Flow Hedges [Member] | Interest rate contracts |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Gain (Loss) on Derivative, Net | 0 | 0 | 0 | 0 |
Not Designated as Hedging Instrument, Economic Hedge | Derivative Contract [Domain] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Gain (Loss) on Derivative, Net |  |  | (130) | (385) |
Derivatives Designated as Hedging Instruments: |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 66,402 |  | 66,402 |  | 66,279
Estimated Fair Value Assets | 3,994 |  | 3,994 |  | 4,543
Estimated Fair Value Liabilities | 4,218 |  | 4,218 |  | 3,890
Derivatives Designated as Hedging Instruments: | Fair Value Hedges [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 6,302 |  | 6,302 |  | 6,792
Estimated Fair Value Assets | 1,036 |  | 1,036 |  | 1,051
Estimated Fair Value Liabilities | 695 |  | 695 |  | 774
Derivatives Designated as Hedging Instruments: | Fair Value Hedges [Member] | Interest rate swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 5,108 |  | 5,108 |  | 5,188
Estimated Fair Value Assets | 1,006 |  | 1,006 |  | 1,018
Estimated Fair Value Liabilities | 651 |  | 651 |  | 666
Derivatives Designated as Hedging Instruments: | Fair Value Hedges [Member] | Foreign currency swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 1,044 |  | 1,044 |  | 1,454
Estimated Fair Value Assets | 30 |  | 30 |  | 33
Estimated Fair Value Liabilities | 8 |  | 8 |  | 67
Derivatives Designated as Hedging Instruments: | Fair Value Hedges [Member] | Foreign currency forwards |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 150 |  | 150 |  | 150
Estimated Fair Value Assets | 0 |  | 0 |  | 0
Estimated Fair Value Liabilities | 36 |  | 36 |  | 41
Derivatives Designated as Hedging Instruments: | Cash Flow Hedges [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 55,764 |  | 55,764 |  | 54,934
Estimated Fair Value Assets | 2,513 |  | 2,513 |  | 2,914
Estimated Fair Value Liabilities | 3,479 |  | 3,479 |  | 3,116
Derivatives Designated as Hedging Instruments: | Cash Flow Hedges [Member] | Interest rate swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 4,164 |  | 4,164 |  | 4,154
Estimated Fair Value Assets | 14 |  | 14 |  | 0
Estimated Fair Value Liabilities | 299 |  | 299 |  | 359
Derivatives Designated as Hedging Instruments: | Cash Flow Hedges [Member] | Interest rate forwards |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 4,796 |  | 4,796 |  | 4,901
Estimated Fair Value Assets | 57 |  | 57 |  | 56
Estimated Fair Value Liabilities | 1,114 |  | 1,114 |  | 880
Derivatives Designated as Hedging Instruments: | Cash Flow Hedges [Member] | Foreign currency swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 46,804 |  | 46,804 |  | 45,879
Estimated Fair Value Assets | 2,442 |  | 2,442 |  | 2,858
Estimated Fair Value Liabilities | 2,066 |  | 2,066 |  | 1,877
Derivatives Designated as Hedging Instruments: | Foreign Operations Hedges [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 4,336 |  | 4,336 |  | 4,553
Estimated Fair Value Assets | 445 |  | 445 |  | 578
Estimated Fair Value Liabilities | 44 |  | 44 |  | 0
Derivatives Designated as Hedging Instruments: | Foreign Operations Hedges [Member] | Foreign currency forwards |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 1,236 |  | 1,236 |  | 1,553
Estimated Fair Value Assets | 2 |  | 2 |  | 42
Estimated Fair Value Liabilities | 44 |  | 44 |  | 0
Derivatives Designated as Hedging Instruments: | Foreign Operations Hedges [Member] | Currency options |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 3,100 |  | 3,100 |  | 3,000
Estimated Fair Value Assets | 443 |  | 443 |  | 536
Estimated Fair Value Liabilities | 0 |  | 0 |  | 0
Derivatives Not Designated or Not Qualifying as Hedging Instruments: |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 198,431 |  | 198,431 |  | 199,269
Estimated Fair Value Assets | 3,483 |  | 3,483 |  | 3,669
Estimated Fair Value Liabilities | 3,325 |  | 3,325 |  | 3,369
Derivative, Gain (Loss) on Derivative, Net | (899) | $ (715) | (564) | $ (1,926) |
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Interest rate swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 26,669 |  | 26,669 |  | 29,238
Estimated Fair Value Assets | 1,454 |  | 1,454 |  | 1,414
Estimated Fair Value Liabilities | 1,304 |  | 1,304 |  | 1,263
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Interest rate forwards |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 3,221 |  | 3,221 |  | 3,128
Estimated Fair Value Assets | 146 |  | 146 |  | 135
Estimated Fair Value Liabilities | 109 |  | 109 |  | 77
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Interest rate floors |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 5,640 |  | 5,640 |  | 6,169
Estimated Fair Value Assets | 60 |  | 60 |  | 38
Estimated Fair Value Liabilities | 0 |  | 0 |  | 0
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Interest rate caps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 16,648 |  | 16,648 |  | 17,998
Estimated Fair Value Assets | 56 |  | 56 |  | 133
Estimated Fair Value Liabilities | 2 |  | 2 |  | 1
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Interest rate futures |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 2,195 |  | 2,195 |  | 1,667
Estimated Fair Value Assets | 13 |  | 13 |  | 1
Estimated Fair Value Liabilities | 1 |  | 1 |  | 1
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Interest rate options |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 32,573 |  | 32,573 |  | 34,939
Estimated Fair Value Assets | 196 |  | 196 |  | 210
Estimated Fair Value Liabilities | 132 |  | 132 |  | 217
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Synthetic GICs |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 53,740 |  | 53,740 |  | 49,599
Estimated Fair Value Assets | 0 |  | 0 |  | 0
Estimated Fair Value Liabilities | 0 |  | 0 |  | 0
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Foreign currency swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 11,593 |  | 11,593 |  | 10,708
Estimated Fair Value Assets | 937 |  | 937 |  | 1,192
Estimated Fair Value Liabilities | 326 |  | 326 |  | 190
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Foreign currency forwards |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 14,284 |  | 14,284 |  | 13,471
Estimated Fair Value Assets | 73 |  | 73 |  | 47
Estimated Fair Value Liabilities | 758 |  | 758 |  | 1,277
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Currency futures |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 315 |  | 315 |  | 301
Estimated Fair Value Assets | 0 |  | 0 |  | 1
Estimated Fair Value Liabilities | 0 |  | 0 |  | 0
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Currency options |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 500 |  | 500 |  | 0
Estimated Fair Value Assets | 34 |  | 34 |  | 0
Estimated Fair Value Liabilities | 52 |  | 52 |  | 0
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Credit default swaps — purchased |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 2,771 |  | 2,771 |  | 2,791
Estimated Fair Value Assets | 5 |  | 5 |  | 14
Estimated Fair Value Liabilities | 63 |  | 63 |  | 67
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Credit default swaps — written |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 11,954 |  | 11,954 |  | 11,764
Estimated Fair Value Assets | 238 |  | 238 |  | 201
Estimated Fair Value Liabilities | 5 |  | 5 |  | 5
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Equity futures |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 1,691 |  | 1,691 |  | 1,840
Estimated Fair Value Assets | 1 |  | 1 |  | 9
Estimated Fair Value Liabilities | 20 |  | 20 |  | 6
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Equity index options |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 11,717 |  | 11,717 |  | 12,743
Estimated Fair Value Assets | 270 |  | 270 |  | 233
Estimated Fair Value Liabilities | 320 |  | 320 |  | 253
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Equity variance swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 121 |  | 121 |  | 114
Estimated Fair Value Assets | 0 |  | 0 |  | 0
Estimated Fair Value Liabilities | 3 |  | 3 |  | 3
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Equity total return swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 1,799 |  | 1,799 |  | 1,799
Estimated Fair Value Assets | 0 |  | 0 |  | 41
Estimated Fair Value Liabilities | 230 |  | 230 |  | 9
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Longevity Swaps |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 1,000 |  | 1,000 |  | 1,000
Derivative Liability, Not Subject to Master Netting Arrangement | 0 |  | 0 |  | 0
Derivative Asset, Not Subject to Master Netting Arrangement | 0 |  | 0 |  | 0
Derivatives Not Designated or Not Qualifying as Hedging Instruments: | Derivatives hedging MRBs |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 13,759 |  | 13,759 |  | 13,585
Estimated Fair Value Assets | 110 |  | 110 |  | 143
Estimated Fair Value Liabilities | 1,059 |  | 1,059 |  | 883
Not Designated as Hedging Instrument, Economic Hedge | Interest rate contracts |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 9,148 |  | 9,148 |  | 8,913
Estimated Fair Value Assets | 7 |  | 7 |  | 11
Estimated Fair Value Liabilities | 712 |  | 712 |  | 768
Not Designated as Hedging Instrument, Economic Hedge | Foreign currency exchange rate |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 576 |  | 576 |  | 378
Estimated Fair Value Assets | 2 |  | 2 |  | 0
Estimated Fair Value Liabilities | 17 |  | 17 |  | 2
Not Designated as Hedging Instrument, Economic Hedge | Equity |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | 4,035 |  | 4,035 |  | 4,294
Estimated Fair Value Assets | 101 |  | 101 |  | 132
Estimated Fair Value Liabilities | $ 330 |  | $ 330 |  | $ 113

X
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- Definition Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-15 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-10 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 10A -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-10A Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-21 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-20 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-15 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (c)(2) -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D + Details
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