Commercial Paper and Other Short-Term Borrowings (Tables)

6 Months Ended

Jun. 30, 2017

Short-term Debt [Abstract]

Summary of Commercial Paper and Other Short-Term Borrowings

The following table is a summary of the Company's commercial paper and other short-term borrowings:

(Dollars in millions)	June 30, 2017		December 31, 2016
Debt issued by MUB
Federal funds purchased, with weighted average interest rates of 1.00% and 0.50% at June 30, 2017 and December 31, 2016, respectively	$	1	$	26
Commercial paper, with a weighted average interest rate of 0.81% and 0.55% at June 30, 2017 and December 31, 2016, respectively	427		263
Federal Home Loan Bank advances, with a weighted average interest rate of 0.94% and 0.59% at June 30, 2017 and December 31, 2016, respectively	4,600		700
Total debt issued by MUB	5,028		989
Debt issued by other MUAH subsidiaries
Short-term debt due to BTMU, with weighted average interest rates of 1.57% and 0.49% at June 30, 2017 and December 31, 2016, respectively	357		679
Short-term debt due to affiliates, with weighted average interest rates of (0.07)% and (0.04)% at June 30, 2017 and December 31, 2016, respectively	810		692
Total debt issued by other MUAH subsidiaries	1,167		1,371
Total commercial paper and other short-term borrowings	$	6,195	$	2,360