Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,305)	$ (808)	$ 968
Other comprehensive income (loss):
Unrealized investment gains (losses), net of related offsets	2,854	3,167	(1,355)
Unrealized gains (losses) on derivatives	(70)	(21)	22
Foreign currency translation adjustments	19	12	(4)
Other comprehensive income (loss), before income tax	2,803	3,158	(1,337)
Income tax (expense) benefit related to items of other comprehensive income (loss)	(597)	(661)	297
Other comprehensive income (loss), net of tax	2,206	2,497	(1,040)
Comprehensive income (loss)	901	1,689	(72)
Less: Comprehensive income (loss) attributable to noncontrolling interests, net of income tax	1	1	1
Comprehensive income (loss), net of tax, Attributable to Parent	$ 900	$ 1,688	$ (73)