CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statements of Comprehensive Income/(loss)
Net income	$ 255	$ 198
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	114	(404)
Net unrealized gains (losses) on cash flow hedges	44	(21)
Net unrealized gains (losses) on pension and other postretirement plans	2	1
Other comprehensive income (loss)	160	(424)
Comprehensive income (loss)	415	(226)
Comprehensive income attributable to noncontrolling interest	4	3
Comprehensive income (loss) attributable to controlling interest	411	(229)
Income tax expense (benefit) of items included in other comprehensive income:
Net unrealized gains (losses) on securities available for sale	36	(130)
Net unrealized gains (losses) on cash flow hedges	14	(7)
Net unrealized gains (losses) on pension and other postretirement plans	$ 1	$ 1