Derivative Instruments - Effects of Qualifying and Non-Qualifying Hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	$ (330)	$ (571)	$ (740)	$ (345)
Net investment income	1,439	1,309	4,152	3,775
Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	(330)	(571)	(740)	(345)
Net investment income	1,439	1,309	4,152	3,775
Interest and debt expense	547	1,572	3,925	583
Realized Gain (Loss) | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income	0	0	0	0
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	(1)	2	2	1
Realized Gain (Loss) | Interest rate contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(12)	370	87	93
Realized Gain (Loss) | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	(1)	(5)	(1)
Realized Gain (Loss) | Equity market contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	2,533	1,079	2,447	4,031
Realized Gain (Loss) | Credit contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges			2	0
Realized Gain (Loss) | LPR ceded derivative | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Realized Gain (Loss) | Reinsurance-related | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(254)	(482)	(521)	(390)
Realized Gain (Loss) | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(1,582)	(666)	(1,974)	(2,636)
Net Investment Income | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income	(1)	(1)	0	(2)
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	15	12	42	41
Net Investment Income | Interest rate contracts | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	2	27	16	3
Derivatives designated as hedging instruments	(2)	(27)	(16)	(3)
Net Investment Income | Interest rate contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Net Investment Income | Foreign currency contracts | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0	1	3	0
Derivatives designated as hedging instruments	0	(1)	(3)	0
Net Investment Income | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Net Investment Income | Equity market contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Net Investment Income | Credit contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges			0	0
Net Investment Income | LPR ceded derivative | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Net Investment Income | Reinsurance-related | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	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	0
Benefits | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income	0	0	0	0
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	0	0	0	0
Benefits | Interest rate contracts | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0	0	0	0
Derivatives designated as hedging instruments	0	0	0	0
Benefits | Interest rate contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Benefits | Foreign currency contracts | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0	0	0	0
Derivatives designated as hedging instruments	0	0	0	0
Benefits | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Benefits | Equity market contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Benefits | Credit contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges			0	0
Benefits | LPR ceded derivative | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(6)	0	(14)	4
Benefits | Reinsurance-related | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0	0	0
Benefits | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	$ 0	$ 0	$ 0	$ 0