Derivative Instruments - Effects of Qualifying and Non-Qualifying Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	$ 269	$ (4,311)	$ 840
Net investment income	5,525	5,879	5,515
Interest and debt expense	336	331	283
Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	269	(4,311)	840
Net investment income	5,525	5,879	5,515
Interest and debt expense	336	331	283
Realized Gain (Loss) | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items			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	8	7	39
Realized Gain (Loss) | Interest rate contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(318)	(161)	(2,113)
Realized Gain (Loss) | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges		(2)	3
Realized Gain (Loss) | Equity market contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	5,271	1,387	(2,075)
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)
Realized Gain (Loss) | Reinsurance-related | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	522	(968)	622
Realized Gain (Loss) | RILA, fixed indexed annuity and IUL contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges	(2,920)	(3,187)	1,760
Net Investment Income | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items		(5)	(167)
Derivatives designated as hedging instruments		5	167
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income	(3)	(1)	2
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	59	54	62
Net Investment Income | Interest rate contracts | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(30)
Derivatives designated as hedging instruments	30
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 | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(2)
Derivatives designated as hedging instruments	2
Net Investment Income | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges		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
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		(5)	156
Derivatives designated as hedging instruments		5	(156)
Interest rate contracts, amount of gain or (loss) reclassified from AOCI into income	25	31	(11)
Foreign currency contracts, amount of gain or (loss) reclassified from AOCI into income	0	0	0
Interest and Debt Expense | Interest rate contracts | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	27
Derivatives designated as hedging instruments	(27)
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 | Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0
Derivatives designated as hedging instruments	0
Interest and Debt Expense | Foreign currency contracts | Non-Qualifying Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Non-Qualifying Hedges		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
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