Other Fees and Commissions and Other Expenses (Details 1) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Fees and Commissions and Other Expenses [Abstract]
Occupancy and equipment	$ 549	$ 508
Professional services	439	494
Other	301	597
Total Other expenses	$ 1,289	$ 1,599