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	$ 199,520
Interest Rate Contracts [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	102,474
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	91,951
Commodity Contract [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	199,520	$ 184,321
Asset Fair Value	9,450	10,293
Liability Fair Value	6,940	9,505
Derivative Investments [Member] \| Interest Rate Contracts [Member] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [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] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [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] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	91,951	92,641
Asset Fair Value	4,950	6,461
Liability Fair Value	2,262	2,108
Derivative Investments [Member] \| Commodity Contract [Member] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [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] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	258	49
Derivative Investments [Member] \| Cash Flow Hedges [Member] \| Designated as Hedging Instrument [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	7,276	7,201
Asset Fair Value	1,062	381
Liability Fair Value	307	487
Derivative Investments [Member] \| Cash Flow Hedges [Member] \| Interest Rate Contracts [Member] \| Designated as Hedging Instrument [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	2,953	3,222
Asset Fair Value	103	98
Liability Fair Value	303	436
Derivative Investments [Member] \| Cash Flow Hedges [Member] \| Foreign currency contracts [Member] \| Designated as Hedging Instrument [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] \| Designated as Hedging Instrument [Member]
Outstanding derivative instruments with off-balance-sheet risks
Notional Amounts	1,155	1,157
Asset Fair Value	1
Liability Fair Value	57	213
Other Assets [Member] \| GLB Direct Embedded Derivatives [Member] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	1,442	1,963
Other Liabilities [Member] \| GLB Ceded Embedded Derivatives [Member] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	37	56
Liability Fair Value	149	182
Reinsurance Related Embedded Derivatives [Member] \| Reinsurance Related [Member] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	479
Liability Fair Value		206
Future Contract Benefits [Member] \| Indexed Annuity And IUL Contracts [Member] \| Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]
Outstanding derivative instruments with off-balance-sheet risks
Asset Fair Value	456	528
Liability Fair Value	$ 3,194	$ 6,131

Derivative Investments [Member] | Interest Rate Contracts [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Derivative Investments [Member] | Foreign currency contracts [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Derivative Investments [Member] | Equity market contracts [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Derivative Investments [Member] | Commodity Contract [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Derivative Investments [Member] | Credit contracts [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Derivative Investments [Member] | Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]

Derivative Investments [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Designated as Hedging Instrument [Member]

Derivative Investments [Member] | Cash Flow Hedges [Member] | Foreign currency contracts [Member] | Designated as Hedging Instrument [Member]

Derivative Investments [Member] | Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Designated as Hedging Instrument [Member]

Other Assets [Member] | GLB Direct Embedded Derivatives [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Other Liabilities [Member] | GLB Ceded Embedded Derivatives [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Reinsurance Related Embedded Derivatives [Member] | Reinsurance Related [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]

Future Contract Benefits [Member] | Indexed Annuity And IUL Contracts [Member] | Derivative Instruments Not Designated and Not Qualifying as Hedging Instruments [Member]