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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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Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Approach

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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.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Amount of gain (loss) on derivative instrument designated and qualifying as fair value hedge included in assessment of hedge effectiveness, recognized in earnings.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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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.

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Net gain (loss) relating to components of the gain (loss) on the fair value hedging instrument excluded from the assessment of fair value hedge effectiveness. Recognized in earnings.

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