Derivative Instruments (Outstanding Derivative Instruments With Off-Balance-Sheet Risks) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	$ 197,400
Interest Rate Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	100,630
Foreign Currency Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	4,827
Equity Market Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	91,675
Commodity [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	10
Credit Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	258
Total Derivative Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	197,400	$ 182,114
Asset Fair Value	9,844	10,611
Liability Fair Value	8,256	11,282
Derivative investments [Member] | Interest Rate Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	98,366	82,786
Asset Fair Value	957	897
Liability Fair Value	955	176
Derivative investments [Member] | Foreign Currency Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	504	487
Asset Fair Value	51	7
Liability Fair Value	5	2
Derivative investments [Member] | Equity Market Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	91,675	92,278
Asset Fair Value	4,950	6,461
Liability Fair Value	2,262	2,108
Derivative investments [Member] | Commodity [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	10
Asset Fair Value	15
Liability Fair Value	11
Derivative investments [Member] | Credit Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	258	49
Derivative investments [Member] | Cash Flow Hedges [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	6,063	5,988
Asset Fair Value	961	381
Liability Fair Value	307	62
Derivative investments [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	1,740	2,009
Asset Fair Value	2	98
Liability Fair Value	303	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	4,323	3,979
Asset Fair Value	959	283
Liability Fair Value	4	51
Derivative investments [Member] | Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	524	526
Asset Fair Value	1
Liability Fair Value	47	210
Other Assets [Member] | LPR Ceded Derivative [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	191	318
Other Assets [Member] | GLB Direct Embedded Derivatives [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	1,442	1,963
Other Liabilities [Member] | GLB Ceded Embedded Derivatives [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	37	56
Liability Fair Value	1,475	2,015
Reinsurance Related Embedded Derivatives [Member] | Reinsurance Related [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	783
Liability Fair Value		578
Future Contract Benefits [Member] | Indexed Annuity And IUL Contracts [Member] | Non-Qualifying Hedges [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	456	528
Liability Fair Value	$ 3,194	$ 6,131