Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ 269	$ 2,886
Items Included in Net Income	(776)	387
Gains (Losses) in OCI and Other	25	(383)
Issuances, Sales, Maturities, Settlements, Calls, Net	(453)	386
Transfers Into or Out of Level 3, Net	(165)	70
Ending Fair Value	(1,100)	3,346
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	2,295	5,720
Items Included in Net Income	1	1
Gains (Losses) in OCI and Other	13	(353)
Issuances, Sales, Maturities, Settlements, Calls, Net	30	358
Transfers Into or Out of Level 3, Net	16	134
Ending Fair Value	2,355	5,860
State And Municipal Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	35
Items Included in Net Income
Gains (Losses) in OCI and Other	1
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net
Ending Fair Value	36
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		41
Gains (Losses) in OCI and Other		(1)
Ending Fair Value		40
RMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1	4
Items Included in Net Income
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net		12
Transfers Into or Out of Level 3, Net		(3)
Ending Fair Value	1	13
CMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Issuances, Sales, Maturities, Settlements, Calls, Net		17
Ending Fair Value		17
ABS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,117	870
Items Included in Net Income
Gains (Losses) in OCI and Other	8	(27)
Issuances, Sales, Maturities, Settlements, Calls, Net	168	187
Transfers Into or Out of Level 3, Net	(193)	(42)
Ending Fair Value	1,100	988
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	49	93
Items Included in Net Income
Gains (Losses) in OCI and Other		5
Issuances, Sales, Maturities, Settlements, Calls, Net	(2)
Transfers Into or Out of Level 3, Net	12
Ending Fair Value	59	98
Trading Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	581	828
Items Included in Net Income	4	(29)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	(127)	2
Transfers Into or Out of Level 3, Net		(4)
Ending Fair Value	458	797
Equity Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	153	95
Items Included in Net Income	(16)	17
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net		(8)
Transfers Into or Out of Level 3, Net
Ending Fair Value	137	104
Mortgage Loans On Real Estate [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	487	739
Items Included in Net Income	2	(3)
Gains (Losses) in OCI and Other	3	(1)
Issuances, Sales, Maturities, Settlements, Calls, Net	(2)	(198)
Transfers Into or Out of Level 3, Net
Ending Fair Value	490	537
Derivative Investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	2	21
Items Included in Net Income	(1)	3
Gains (Losses) in OCI and Other		(6)
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net		(15)
Ending Fair Value	1	3
Ceded MRBs [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	12	95
Items Included in Net Income	(6)	(74)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net
Ending Fair Value	6	21
Ceded MRBs [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(205)	(17)
Items Included in Net Income	(47)	(34)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net
Ending Fair Value	(252)	(51)
Indexed Annuity Ceded Embedded Derivatives [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	525	528
Items Included in Net Income	6	(53)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	(226)	18
Transfers Into or Out of Level 3, Net
Ending Fair Value	305	493
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(4,783)	(6,131)
Items Included in Net Income	(719)	559
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	(294)	(2)
Transfers Into or Out of Level 3, Net
Ending Fair Value	$ (5,796)	$ (5,574)