Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 533	$ 538	$ 218
Other comprehensive income (loss), net of tax
Investment securities	(37)	51	48
Derivatives and hedging activities	25	(5)	0
Other comprehensive income (loss), net of tax	(12)	46	48
Comprehensive income	$ 521	$ 584	$ 266