Derivative Instruments - Outstanding Derivative Instruments With Off-Balance-Sheet Risks (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	$ 330,823	$ 274,575
Gross amount of recognized assets	17,398	15,003
Gross amount of recognized liabilities	21,548	16,875
Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	86,947
Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	5,236
Equity market contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	238,623
Credit contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	17
Qualifying Hedges | Cash flow hedges
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	6,222	5,968
Gross amount of recognized assets	392	712
Gross amount of recognized liabilities	132	60
Qualifying Hedges | Cash flow hedges | Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	1,300	1,230
Gross amount of recognized assets	12	156
Gross amount of recognized liabilities	7	16
Qualifying Hedges | Cash flow hedges | Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	4,922	4,738
Gross amount of recognized assets	380	556
Gross amount of recognized liabilities	125	44
Qualifying Hedges | Fair value hedges
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	858	1,091
Gross amount of recognized assets	1	11
Gross amount of recognized liabilities	2	16
Qualifying Hedges | Fair value hedges | Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	833	1,066
Gross amount of recognized assets	1	10
Gross amount of recognized liabilities	0	16
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	1
Gross amount of recognized liabilities	2	0
Non-Qualifying Hedges | Interest rate contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	84,814	75,445
Gross amount of recognized assets	64	63
Gross amount of recognized liabilities	321	439
Non-Qualifying Hedges | Foreign currency contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	289	348
Gross amount of recognized assets	12	30
Gross amount of recognized liabilities	4	2
Non-Qualifying Hedges | Equity market contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	238,623	191,666
Gross amount of recognized assets	15,560	13,072
Gross amount of recognized liabilities	5,685	3,879
Non-Qualifying Hedges | Credit contracts
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	17	57
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	289	30
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	1,369	1,115
Gross amount of recognized liabilities	$ 15,115	$ 12,449