CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statements of Comprehensive Income/(loss)
Net income	$ 198	$ 236
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities available for sale	(404)	(103)
Net unrealized gains (losses) on cash flow hedges	(21)	(2)
Net unrealized gains (losses) on pension and other postretirement plans	1	4
Other comprehensive income (loss)	(424)	(101)
Comprehensive income (loss)	(226)	135
Comprehensive income attributable to noncontrolling interest	3	3
Comprehensive income (loss) attributable to controlling interest	(229)	132
Income tax expense (benefit) of items included in other comprehensive income:
Net unrealized gains (losses) on securities available for sale	(130)	(33)
Net unrealized gains (losses) on cash flow hedges	(7)	(1)
Net unrealized gains (losses) on pension and other postretirement plans	$ 1	$ 1