CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Supplemental disclosure of cash flow information
Interest paid during the period	$ 2,350	$ 1,816	$ 1,446
Net income taxes paid (refunded) during the period	348	783	(289)
Supplemental disclosure of non-cash investing activities
Transfer of loans to held for sale, net	1,042	1,253	1,588
Transfer of other assets to loans held for sale	0	0	78
Fair value of properties added to real estate owned upon foreclosure	$ 11	$ 12	$ 41