CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ (434)	$ 231	$ 567	$ 586
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities	88	81	219	561
Total other comprehensive income (loss), net of tax	88	81	219	561
Total comprehensive income	$ (346)	$ 312	$ 786	$ 1,147