CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental disclosure of cash flow information
Interest paid during the period	$ 2,921	$ 2,350	$ 1,816
Net income taxes paid during the period	159	348	783
Supplemental disclosure of non-cash investing activities
Transfer of loans to held for sale, net	1,209	1,042	1,253
Fair value of properties added to real estate owned upon foreclosure	$ 16	$ 11	$ 12