Equity (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	$ (3,009)	$ 4,312	$ 3,901	$ 5,421
OCI before reclassifications	(4,408)	(351)	(13,249)	(1,763)
Deferred income tax benefit (expense) (2)	927	74	2,783	370
AOCI before reclassifications, net of income tax	(6,490)	4,035	(6,565)	4,028
Amounts reclassified from AOCI	36	(2)	131	7
Deferred income tax benefit (expense) (2)	(8)	1	(28)	(1)
Amounts reclassified from AOCI, net of income tax	28	(1)	103	6
Balance, end of period	(6,462)	4,034	(6,462)	4,034
Unrealized Investment Gains (Losses), Net of Related Offsets (1)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	(3,445)	4,187	3,675	5,321
OCI before reclassifications	(4,715)	(462)	(13,806)	(1,915)
Deferred income tax benefit (expense) (2)	1,064	96	2,954	401
AOCI before reclassifications, net of income tax	(7,096)	3,821	(7,177)	3,807
Amounts reclassified from AOCI	45	(2)	147	16
Deferred income tax benefit (expense) (2)	(10)	1	(31)	(3)
Amounts reclassified from AOCI, net of income tax	35	(1)	116	13
Balance, end of period	(7,061)	3,820	(7,061)	3,820
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	469	138	233	108
OCI before reclassifications	331	102	613	149
Deferred income tax benefit (expense) (2)	(143)	(21)	(183)	(31)
AOCI before reclassifications, net of income tax	657	219	663	226
Amounts reclassified from AOCI	(9)	0	(16)	(9)
Deferred income tax benefit (expense) (2)	2	0	3	2
Amounts reclassified from AOCI, net of income tax	(7)	0	(13)	(7)
Balance, end of period	650	219	650	219
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, beginning of period	(33)	(13)	(7)	(8)
OCI before reclassifications	(24)	9	(56)	3
Deferred income tax benefit (expense) (2)	6	(1)	12	0
AOCI before reclassifications, net of income tax	(51)	(5)	(51)	(5)
Amounts reclassified from AOCI	0	0	0	0
Deferred income tax benefit (expense) (2)	0	0	0	0
Amounts reclassified from AOCI, net of income tax	0	0	0	0
Balance, end of period	$ (51)	$ (5)	$ (51)	$ (5)