Derivative Instruments (Effects Of Qualifying And Non-Qualifying Hedges) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Realized Gain (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total line items in which the effects of fair value or cash flow hedges are recorded			$ 353	$ 16
Realized Gain (Loss) [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total line items in which the effects of fair value or cash flow hedges are recorded	$ 5	$ (24)
Net Investment Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total line items in which the effects of fair value or cash flow hedges are recorded			3,933	4,468
Net Investment Income [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total line items in which the effects of fair value or cash flow hedges are recorded	1,272	1,511
Benefits Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total line items in which the effects of fair value or cash flow hedges are recorded			8,748	5,871
Benefits Expense [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total line items in which the effects of fair value or cash flow hedges are recorded	4,498	1,840
Interest Rate Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(552)	(149)	(1,998)	(876)
Foreign Currency Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	4		6	(1)
Equity Market Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(188)	387	(2,100)	2,342
Commodity [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(6)		4
Credit Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(2)		(2)
LPR Ceded Derivative [Member] | Benefits Expense [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	24	1	127	77
GLB Embedded Derivative [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)				3
Reinsurance Related [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	382	37	1,361	166
Indexed Annuity And IUL Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	347	33	3,030	(1,296)
Fair Value Hedges [Member] | Net Investment Income [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(42)	(10)
Derivatives designated as hedging instruments	42	10
Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Net Investment Income [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items			(164)	(59)
Derivatives designated as hedging instruments			164	59
Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Net Investment Income [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) reclassified from AOCI into income		1	1	2
Cash Flow Hedges [Member] | Foreign Currency Contracts [Member] | Realized Gain (Loss) [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) reclassified from AOCI into income	25		29	(2)
Cash Flow Hedges [Member] | Foreign Currency Contracts [Member] | Net Investment Income [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) reclassified from AOCI into income	$ 19	$ 13	$ 48	$ 34