Derivative Instruments - Effects of Qualifying and Non-Qualifying Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	$ (4,934)	$ 418	$ 859
Net investment income	5,712	5,274	5,839
Interest and debt expense	190	137	114
Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	(4,934)	418	859
Net investment income	5,712	5,274	5,839
Interest and debt expense	5,044	8,203	8,027
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
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	7	39	(2)
Realized Gain (Loss) | Interest rate contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(161)	(2,113)	(957)
Realized Gain (Loss) | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(2)	2	(1)
Realized Gain (Loss) | Equity market contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	1,387	(2,075)	3,355
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)	(1)
Realized Gain (Loss) | LPR ceded derivative | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	0
Realized Gain (Loss) | Reinsurance-related | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(188)	1,259	280
Realized Gain (Loss) | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(3,187)	1,760	(2,622)
Net Investment Income | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(5)	(167)	(60)
Derivatives designated as hedging instruments	5	167	60
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income	(1)	2	3
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	54	62	48
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 | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	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	0
Net Investment Income | LPR ceded derivative | 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	0	0	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	0	0	0
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 | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	0	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	0
Interest and Debt Expense | LPR ceded derivative | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	6	106
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