Income Taxes - Schedule of Components of Consolidated Statements of Income and Equity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax expense	$ 247	$ 274	$ 76
Net unrealized gains (losses) on pension and other postretirement plans	(5)	2	3
Net unrealized gains (losses) on securities available for sale	(302)	(46)	25
Net unrealized gains (losses) on cash flow hedges	(42)	(3)	3
Total	$ (102)	$ 227	$ 107