Derivative Instruments (Effects Of Qualifying And Non-Qualifying Hedges) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
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	$ (394)	$ 360
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	1,409	1,352
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	2,204	2,102
Interest Rate Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	332	(821)
Foreign Currency Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(1)
Equity Market Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(53)	(324)
Commodity [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	11
Credit Contracts [Member] | Realized Gain (Loss) [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(1)
LPR Ceded Derivative [Member] | Benefits Expense [Member] | Non-Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	13	52
Reinsurance Related [Member] | Realized Gain (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(67)	546
Indexed Annuity And IUL Contracts [Member] | Realized Gain (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Non-qualifying hedges gain (loss)	(713)	506
Fair Value Hedges [Member] | Interest Rate Contracts [Member] | Net Investment Income [Member] | Qualifying Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	16	(63)
Derivatives designated as hedging instruments	(16)	63
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
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	2	3
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	$ 14	$ 13