Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest Income
Loans	$ 2,839	$ 2,797	$ 2,863
Securities	483	463	453
Securities borrowed or purchased under resale agreements	195	112	68
Trading assets	172	53	49
Other	27	12	13
Total interest income	3,716	3,437	3,446
Interest Expense
Deposits	194	200	238
Commercial paper and other short-term borrowings	32	13	59
Long-term debt	240	250	190
Securities loaned or sold under repurchase agreements	140	52	21
Trading liabilities	57	30	33
Total interest expense	663	545	541
Net Interest Income	3,053	2,892	2,905
(Reversal of) provision for credit losses	155	227	8
Net interest income after (reversal of) provision for credit losses	2,898	2,665	2,897
Noninterest Income
Service charges on deposit accounts	192	195	203
Trust and investment management fees	120	111	106
Trading account activities	105	62	51
Securities gains, net	69	20	18
Credit facility fees	108	117	125
Brokerage commissions and fees	64	79	79
Card processing fees, net	39	33	34
Investment banking and syndication fees	312	319	323
Fees from affiliates	957	763	320
Other, net	259	151	211
Total noninterest income	2,225	1,850	1,470
Noninterest Expense
Salaries and employee benefits	2,355	2,414	1,959
Net occupancy and equipment	325	335	313
Professional and outside services	369	318	275
Software	154	120	95
Regulatory assessments	72	53	59
Intangible asset amortization	28	42	52
Other	479	465	503
Total noninterest expense	3,782	3,747	3,256
Income before income taxes and including noncontrolling interests	1,341	768	1,111
Income tax expense	419	169	348
Net Income Including Noncontrolling Interests	922	599	763
Deduct: Net loss from noncontrolling interests	68	45	19
Net Income Attributable to MUAH	$ 990	$ 644	$ 782