Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	$ 6,441	$ 5,141	$ 4,014
Items Included in Net Income	(11)	552	(417)
Gains (Losses) in OCI and Other	(173)	549	353
Issuances, Sales, Maturities, Settlements, Calls, Net	1,420	(284)	2,013
Transfers Into or Out of Level 3, Net	(3,032)	483	(822)
Ending Fair Value	4,645	6,441	5,141
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	5,121	4,281	3,269
Items Included in Net Income	4	(8)	3
Gains (Losses) in OCI and Other	(182)	284	180
Issuances, Sales, Maturities, Settlements, Calls, Net	748	464	878
Transfers Into or Out of Level 3, Net	29	100	(49)
Ending Fair Value	5,720	5,121	4,281
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	5	5
Issuances, Sales, Maturities, Settlements, Calls, Net	(5)
Transfers Into or Out of Level 3, Net			5
Ending Fair Value		5	5
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	74	90	109
Items Included in Net Income		1
Gains (Losses) in OCI and Other	(11)	3	6
Issuances, Sales, Maturities, Settlements, Calls, Net	80	(20)	(25)
Transfers Into or Out of Level 3, Net	(102)
Ending Fair Value	41	74	90
RMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	2	11	7
Items Included in Net Income	(1)
Gains (Losses) in OCI and Other
Issuances, Sales, Maturities, Settlements, Calls, Net	3		21
Transfers Into or Out of Level 3, Net		(9)	(17)
Ending Fair Value	4	2	11
CMBS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		1	2
Items Included in Net Income		(1)	1
Issuances, Sales, Maturities, Settlements, Calls, Net	8		5
Transfers Into or Out of Level 3, Net	(8)		(7)
Ending Fair Value			1
ABS [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	570	268	134
Items Included in Net Income	1
Gains (Losses) in OCI and Other	(9)	7	1
Issuances, Sales, Maturities, Settlements, Calls, Net	602	496	619
Transfers Into or Out of Level 3, Net	(294)	(201)	(486)
Ending Fair Value	870	570	268
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	104	78	75
Gains (Losses) in OCI and Other	27	(2)	3
Issuances, Sales, Maturities, Settlements, Calls, Net	(38)	10
Transfers Into or Out of Level 3, Net		18
Ending Fair Value	93	104	78
Mortgage Loans On Real Estate [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	832
Items Included in Net Income	11	(1)
Gains (Losses) in OCI and Other	5	(10)
Issuances, Sales, Maturities, Settlements, Calls, Net	(109)	56
Transfers Into or Out of Level 3, Net		787
Ending Fair Value	739	832
Trading Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	644	666	67
Items Included in Net Income	(3)	11	17
Issuances, Sales, Maturities, Settlements, Calls, Net	210	(32)	850
Transfers Into or Out of Level 3, Net	(23)	(1)	(268)
Ending Fair Value	828	644	666
Equity Securities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	59	30	25
Items Included in Net Income	39	4	(12)
Issuances, Sales, Maturities, Settlements, Calls, Net	(3)	20	17
Transfers Into or Out of Level 3, Net		5
Ending Fair Value	95	59	30
Derivative Investments [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	1,542	868	534
Items Included in Net Income	1,255	986	10
Gains (Losses) in OCI and Other	(3)	267	163
Issuances, Sales, Maturities, Settlements, Calls, Net	(139)	(363)	161
Transfers Into or Out of Level 3, Net	(2,634)	(216)
Ending Fair Value	21	1,542	868
GLB Direct Embedded Derivatives [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	450	450	123
Items Included in Net Income	1,513		327
Ending Fair Value	1,963	450	450
GLB Direct Embedded Derivatives [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		(9)
Items Included in Net Income		9
Ending Fair Value			(9)
GLB Ceded Embedded Derivatives [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	82	60	72
Items Included in Net Income	(26)	22	(12)
Ending Fair Value	56	82	60
GLB Ceded Embedded Derivatives [Member] | Other Liabilities [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value		(9)
Items Included in Net Income	(182)		(9)
Ending Fair Value	(182)		(9)
Indexed Annuity And IUL Contracts [Member] | Other Assets [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	550	927	902
Items Included in Net Income	87	538	158
Issuances, Sales, Maturities, Settlements, Calls, Net	(109)	(915)	(133)
Ending Fair Value	528	550	927
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member]
Level 3 Unobservable Input Reconciliation
Beginning Fair Value	(3,594)	(2,585)	(1,305)
Items Included in Net Income	(2,709)	(1,009)	(900)
Issuances, Sales, Maturities, Settlements, Calls, Net	172		(380)
Ending Fair Value	$ (6,131)	$ (3,594)	$ (2,585)