Derivative Instruments (Outstanding Derivative Instruments With Off-Balance-Sheet Risks) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	$ 182,114	$ 214,672
Asset Fair Value	10,611	6,390
Liability Fair Value	11,282	7,217
Interest Rate Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	85,321
Foreign Currency Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	4,466
Equity Market Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	92,278
Credit Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	49
LPR Ceded Derivative [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	318
GLB Direct Embedded Derivatives [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	1,963	450
GLB Ceded Embedded Derivatives [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	56	82
Liability Fair Value	2,015	531
Reinsurance Related [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Liability Fair Value	578	540
Indexed Annuity And IUL Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	528	550
Liability Fair Value	6,131	3,594
Cash Flow Hedges [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	5,988	4,053
Asset Fair Value	381	234
Liability Fair Value	62	162
Derivative investments [Member] | Interest Rate Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	82,786	135,434
Asset Fair Value	897	1,587
Liability Fair Value	176	159
Derivative investments [Member] | Foreign Currency Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	487	304
Asset Fair Value	7	1
Liability Fair Value	2	8
Derivative investments [Member] | Equity Market Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	92,278	74,300
Asset Fair Value	6,461	3,486
Liability Fair Value	2,108	1,952
Derivative investments [Member] | Credit Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	49	51
Derivative investments [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	2,009	964
Asset Fair Value	98	87
Liability Fair Value	11	11
Derivative investments [Member] | Cash Flow Hedges [Member] | Foreign Currency Contracts [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	3,979	3,089
Asset Fair Value	283	147
Liability Fair Value	51	151
Derivative investments [Member] | Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	526	530
Liability Fair Value	$ 210	$ 271