Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ 564	$ 10,628	$ 3,859	$ 10,296
Items Included in Net Income	106	(451)	(3,560)	214
Gains (Losses) in OCI and Other	(22)	(591)	1	(1,660)
Issuances, Sales, Maturities, Settlements, Calls, Net	353	(93)	842	688
Transfers Into or Out of Level 3, Net	(156)	(161)	(297)	(206)
Ending Fair Value	845	9,332	845	9,332
Corporate Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	6,177	8,531	5,186	8,801
Items Included in Net Income	(7)	1	(19)	2
Gains (Losses) in OCI and Other	(13)	(512)	2	(1,514)
Issuances, Sales, Maturities, Settlements, Calls, Net	353	(34)	1,302	583
Transfers Into or Out of Level 3, Net	(43)	(16)	(4)	98
Ending Fair Value	6,467	7,970	6,467	7,970
Foreign Government Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		37		41
Gains (Losses) in OCI and Other		(3)		(7)
Ending Fair Value		34		34
RMBS [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	6	1	1	3
Gains (Losses) in OCI and Other	(1)		(1)
Issuances, Sales, Maturities, Settlements, Calls, Net		9	5	21
Transfers Into or Out of Level 3, Net	7		7	(14)
Ending Fair Value	12	10	12	10
CMBS [Member]
Level 3 Unobservable Input Reconciliation
Issuances, Sales, Maturities, Settlements, Calls, Net			(4)	17
Transfers Into or Out of Level 3, Net			4	(17)
ABS [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,208	1,153	1,117	870
Gains (Losses) in OCI and Other	(5)	(38)	(3)	(98)
Issuances, Sales, Maturities, Settlements, Calls, Net	247	123	567	576
Transfers Into or Out of Level 3, Net	(113)	(147)	(344)	(257)
Ending Fair Value	1,337	1,091	1,337	1,091
State And Municipal Bonds [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	36		35
Items Included in Net Income	(2)		(4)
Gains (Losses) in OCI and Other	(1)		3
Issuances, Sales, Maturities, Settlements, Calls, Net			(1)
Ending Fair Value	33		33
Hybrid And Redeemable Preferred Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	60	99	49	90
Items Included in Net Income		(1)		(1)
Gains (Losses) in OCI and Other	1	(34)	(2)	(25)
Issuances, Sales, Maturities, Settlements, Calls, Net		(6)	(2)	(6)
Transfers Into or Out of Level 3, Net	(13)		3
Ending Fair Value	48	58	48	58
Trading Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	351	620	581	828
Items Included in Net Income	(3)	(24)	(1)	(82)
Issuances, Sales, Maturities, Settlements, Calls, Net	(4)	3	(236)	(143)
Transfers Into or Out of Level 3, Net	6	3	6	(1)
Ending Fair Value	350	602	350	602
Equity Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	125	145	153	91
Items Included in Net Income	12	24	(17)	54
Issuances, Sales, Maturities, Settlements, Calls, Net		(1)	1	23
Ending Fair Value	137	168	137	168
Mortgage Loans On Real Estate [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	404	528	487	739
Items Included in Net Income	2	(1)		(16)
Gains (Losses) in OCI and Other	(3)	(4)	2	(10)
Issuances, Sales, Maturities, Settlements, Calls, Net	(88)	(28)	(174)	(218)
Ending Fair Value	315	495	315	495
Derivative Investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	31	3	2	21
Items Included in Net Income	(26)	3	(28)	5
Gains (Losses) in OCI and Other				(6)
Issuances, Sales, Maturities, Settlements, Calls, Net	8		8
Transfers Into or Out of Level 3, Net		(1)	31	(15)
Ending Fair Value	13	5	13	5
Ceded MRBs [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	401	2,337	540	4,114
Items Included in Net Income	(128)	(722)	(267)	(2,499)
Ending Fair Value	273	1,615	273	1,615
Ceded MRBs [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value			(246)	(17)
Items Included in Net Income			(1,490)	(152)
Ending Fair Value	(1,736)	(169)	(1,736)	(169)
GLB Direct Embedded Derivatives [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		(115)
Items Included in Net Income		(54)
Ending Fair Value		(169)		(169)
GLB Ceded Embedded Derivatives [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(1,440)
Items Included in Net Income	(296)
Ending Fair Value	(1,736)		(1,736)
Indexed Annuity Ceded Embedded Derivatives [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	603
Items Included in Net Income	(49)
Issuances, Sales, Maturities, Settlements, Calls, Net	32
Ending Fair Value	586		586
Indexed Annuity Ceded Embedded Derivatives [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		440	525
Items Included in Net Income		(47)	(37)
Issuances, Sales, Maturities, Settlements, Calls, Net		63	98
Ending Fair Value	586	456	586	456
LPR Ceded Derivative [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	202
Items Included in Net Income	(18)
Ending Fair Value	184		184
LPR Ceded Derivative [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		215	212	318
Items Included in Net Income		(24)	(28)	(127)
Ending Fair Value	184	191	184	191
Indexed Annuity And IUL Contracts [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value				528
Items Included in Net Income				(214)
Issuances, Sales, Maturities, Settlements, Calls, Net				142
Ending Fair Value		456		456
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		(3,366)	(4,783)	(6,131)
Items Included in Net Income		394	(1,669)	3,244
Issuances, Sales, Maturities, Settlements, Calls, Net		(222)	(722)	(307)
Ending Fair Value	(7,174)	$ (3,194)	(7,174)	$ (3,194)
Policyholder Account Balances [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(7,600)
Items Included in Net Income	621
Issuances, Sales, Maturities, Settlements, Calls, Net	(195)
Ending Fair Value	$ (7,174)		$ (7,174)