Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ (840)	$ 3,346	$ 269	$ 2,886
Items Included in Net Income	(1,615)	2,089	(2,390)	2,476
Gains (Losses) in OCI and Other	(18)	(692)	7	(1,075)
Issuances, Sales, Maturities, Settlements, Calls, Net	(163)	423	(357)	809
Transfers Into or Out of Level 3, Net	25	(117)	(140)	(47)
Ending Fair Value	(2,611)	5,049	(2,611)	5,049
Corporate Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	2,355	5,860	2,295	5,720
Items Included in Net Income	4		5	1
Gains (Losses) in OCI and Other	(12)	(657)	1	(1,010)
Issuances, Sales, Maturities, Settlements, Calls, Net	(5)	293	25	651
Transfers Into or Out of Level 3, Net	24	(20)	40	114
Ending Fair Value	2,366	5,476	2,366	5,476
State And Municipal Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	36		35
Items Included in Net Income
Gains (Losses) in OCI and Other	1		2
Issuances, Sales, Maturities, Settlements, Calls, Net	(1)		(1)
Transfers Into or Out of Level 3, Net
Ending Fair Value	36		36
Foreign Government Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		40		41
Gains (Losses) in OCI and Other		(3)		(4)
Ending Fair Value		37		37
RMBS [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1	13	1	4
Items Included in Net Income
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	5		5	12
Transfers Into or Out of Level 3, Net		(12)		(15)
Ending Fair Value	6	1	6	1
CMBS [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		17
Items Included in Net Income
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	(4)		(4)	17
Transfers Into or Out of Level 3, Net	4	(17)	4	(17)
ABS [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,100	988	1,117	870
Items Included in Net Income
Gains (Losses) in OCI and Other	(6)	(33)	2	(60)
Issuances, Sales, Maturities, Settlements, Calls, Net	152	266	320	453
Transfers Into or Out of Level 3, Net	(38)	(68)	(231)	(110)
Ending Fair Value	1,208	1,153	1,208	1,153
Hybrid And Redeemable Preferred Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	59	98	49	93
Items Included in Net Income
Gains (Losses) in OCI and Other	(3)	6	(3)	11
Issuances, Sales, Maturities, Settlements, Calls, Net			(2)
Transfers Into or Out of Level 3, Net	4		16
Ending Fair Value	60	104	60	104
Trading Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	458	797	581	828
Items Included in Net Income	(2)	(29)	2	(58)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	(105)	(148)	(232)	(146)
Transfers Into or Out of Level 3, Net				(4)
Ending Fair Value	351	620	351	620
Equity Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	137	104	153	95
Items Included in Net Income	(13)	15	(29)	32
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	1	26	1	18
Transfers Into or Out of Level 3, Net
Ending Fair Value	125	145	125	145
Mortgage Loans On Real Estate [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	490	537	487	739
Items Included in Net Income	(4)	(12)	(2)	(15)
Gains (Losses) in OCI and Other	2	(5)	5	(6)
Issuances, Sales, Maturities, Settlements, Calls, Net	(84)	8	(86)	(190)
Transfers Into or Out of Level 3, Net
Ending Fair Value	404	528	404	528
Derivative Investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1	3	2	21
Items Included in Net Income	(1)		(2)	3
Gains (Losses) in OCI and Other				(6)
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net	31		31	(15)
Ending Fair Value	31	3	31	3
Ceded MRBs [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	6	21	12	95
Items Included in Net Income	(4)	2	(10)	(72)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net
Ending Fair Value	2	23	2	23
Ceded MRBs [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(252)	(51)	(205)	(17)
Items Included in Net Income	(41)	(64)	(88)	(98)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net
Transfers Into or Out of Level 3, Net
Ending Fair Value	(293)	(115)	(293)	(115)
Indexed Annuity Ceded Embedded Derivatives [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	565	493	525	528
Items Included in Net Income	4	(113)	11	(166)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	34	60	67	78
Transfers Into or Out of Level 3, Net
Ending Fair Value	603	440	603	440
Indexed Annuity And IUL Contracts [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value			(4,783)	(6,131)
Items Included in Net Income			(2,277)	2,849
Issuances, Sales, Maturities, Settlements, Calls, Net			(450)	(84)
Ending Fair Value	(7,510)	(3,366)	(7,510)	(3,366)
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(5,796)	(5,574)
Items Included in Net Income	(1,558)	2,290
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	(156)	(82)
Transfers Into or Out of Level 3, Net
Ending Fair Value	$ (7,510)	$ (3,366)	$ (7,510)	$ (3,366)