Derivative Instruments - Outstanding Derivative Instruments With Off-Balance-Sheet Risks (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	$ 260,018	$ 330,823
Gross amount of recognized assets	14,837	17,398
Gross amount of recognized liabilities	18,815	21,548
Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	90,422
Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	5,321
Equity market contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	164,036
Credit contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	239
Qualifying Hedges | Cash flow hedges
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	6,544	6,222
Gross amount of recognized assets	480	392
Gross amount of recognized liabilities	97	132
Qualifying Hedges | Cash flow hedges | Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	1,570	1,300
Gross amount of recognized assets	8	12
Gross amount of recognized liabilities	10	7
Qualifying Hedges | Cash flow hedges | Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	4,974	4,922
Gross amount of recognized assets	472	380
Gross amount of recognized liabilities	87	125
Qualifying Hedges | Fair value hedges
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	858	858
Gross amount of recognized assets	1	1
Gross amount of recognized liabilities	8	2
Qualifying Hedges | Fair value hedges | Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	833	833
Gross amount of recognized assets	1	1
Gross amount of recognized liabilities	7	0
Qualifying Hedges | Fair value hedges | Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	25	25
Gross amount of recognized assets	0	0
Gross amount of recognized liabilities	1	2
Non-Qualifying Hedges | Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	88,019	84,814
Gross amount of recognized assets	124	64
Gross amount of recognized liabilities	326	321
Non-Qualifying Hedges | Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	322	289
Gross amount of recognized assets	14	12
Gross amount of recognized liabilities	3	4
Non-Qualifying Hedges | Equity market contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	164,036	238,623
Gross amount of recognized assets	12,886	15,560
Gross amount of recognized liabilities	4,845	5,685
Non-Qualifying Hedges | Credit contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	239	17
Gross amount of recognized assets	0	0
Gross amount of recognized liabilities	0	0
Non-Qualifying Hedges | Reinsurance-related
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	0	0
Gross amount of recognized assets	0	0
Gross amount of recognized liabilities	92	289
Non-Qualifying Hedges | RILA, fixed indexed annuity and IUL contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	0	0
Gross amount of recognized assets	1,332	1,369
Gross amount of recognized liabilities	$ 13,444	$ 15,115