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Derivative Instruments - Gains (Losses) on Derivatives Not Designated as Hedging (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | $ (404) | $ (2,532) | $ (26) | $ (4,541)
Investment related gains (losses) |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | 651 | (4,051) | 1,502 | (7,094)
Investment related gains (losses) | Equity options |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | 991 | (1,571) | 1,341 | (2,279)
Investment related gains (losses) | Futures |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | 61 | (86) | 95 | (119)
Investment related gains (losses) | Swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | 29 | (74) | 62 | (11)
Investment related gains (losses) | Foreign currency forwards |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | (168) | 362 | (337) | 517
Investment related gains (losses) | Embedded derivatives |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | (262) | (2,682) | 341 | (5,202)
Interest sensitive contract benefits | Embedded derivatives |  |  |  |
Derivative [Line Items] |  |  |  |
Total gains (losses) for derivatives not designated as hedges | (1,055) | 1,519 | (1,528) | 2,553
Fair Value Hedging [Member] | Derivatives designated as hedges | Investment related gains (losses) | Foreign currency swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | (43) | 242 | (102) | 333
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | 45 | (252) | 109 | (347)
Derivative, Fair Value Hedge, Included in Effectiveness, Gain (Loss) | 2 | (10) | 7 | (14)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach | 0 | 0 | 0 | 0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net | 0 | 0 | 0 | 0
Fair Value Hedging [Member] | Derivatives designated as hedges | Investment related gains (losses) | Interest rate swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | (120) | (5) | (18) | (77)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | 120 | 18 | 16 | 93
Derivative, Fair Value Hedge, Included in Effectiveness, Gain (Loss) | 0 | 13 | (2) | 16
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach | 0 | 0 | 0 | 0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net | 0 | 0 | 0 | 0
Fair Value Hedging [Member] | Derivatives designated as hedges | Investment related gains (losses) | Foreign currency forwards |  |  |  |
Derivative [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | (35) | 201 | (105) | 328
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | 37 | (232) | 110 | (358)
Derivative, Fair Value Hedge, Included in Effectiveness, Gain (Loss) | 2 | (31) | 5 | (30)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach | (42) | 16 | 45 | 30
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net | 3 | 0 | 7 | 1
Fair Value Hedging [Member] | Derivatives designated as hedges | Investment related gains (losses) | Cross Currency Interest Rate Contract |  |  |  |
Derivative [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 7 | (335) | 85 | (494)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | (10) | 298 | (80) | 495
Derivative, Fair Value Hedge, Included in Effectiveness, Gain (Loss) | (3) | (37) | 5 | 1
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach | 0 | 0 | 0 | 0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net | 0 | 0 | 0 | 0
Fair Value Hedging [Member] | Derivatives designated as hedges | Interest sensitive contract benefits | Cross Currency Interest Rate Contract |  |  |  |
Derivative [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 13 | 15 | 28 | 25
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge | (15) | (14) | (30) | (23)
Derivative, Fair Value Hedge, Included in Effectiveness, Gain (Loss) | (2) | 1 | (2) | 2
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach | 0 | 0 | 0 | 0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach + References No definition available. + Details
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- 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 gain (loss) on derivative instrument designated and qualifying as fair value hedge included in assessment of hedge effectiveness, recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480627/815-20-45-1A + 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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