CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statements of Comprehensive Income/(loss)
Net income	$ 329	$ 177	$ 585	$ 374
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	(105)	(231)	9	(635)
Net unrealized gains (losses) on cash flow hedges	(46)	(22)	(2)	(43)
Net unrealized gains (losses) on pension and other postretirement plans	0	1	2	3
Other comprehensive income (loss)	(151)	(252)	9	(675)
Comprehensive income (loss)	178	(75)	594	(301)
Comprehensive income attributable to noncontrolling interest	4	3	9	6
Comprehensive income (loss) attributable to controlling interest	174	(78)	585	(307)
Income tax expense (benefit) of items included in other comprehensive income:
Net unrealized gains (losses) on securities available for sale	(34)	(75)	2	(206)
Net unrealized gains (losses) on cash flow hedges	(15)	(7)	(1)	(14)
Net unrealized gains (losses) on pension and other postretirement plans	$ 1	$ 1	$ 1	$ 1