Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Summary of Long-Term Debt

The following is a summary of MUAH's, the Bank's and other subsidiaries' long-term debt:

(Dollars in millions)	September 30, 2015		December 31, 2014
Debt issued by MUAH
Senior debt:
Floating rate senior notes due February 2018. These notes, which bear interest at 0.57% above 3-month LIBOR, had a rate of 0.88% at September 30, 2015(2)	$	250	$	—
Fixed rate 1.625% notes due February 2018(2)	450		—
Fixed rate 2.25% notes due February 2020(2)	1,000		—
Fixed rate 3.50% notes due June 2022	398		398
Fixed rate 3.00% notes due February 2025(2)	498		—
Subordinated debt due to BTMU:
Floating rate subordinated debt due December 2023. This note, which bears interest at 1.38% above 3-month LIBOR, had a rate of 1.71% at September 30, 2015 and 1.63% at December 31, 2014	300		300
Junior subordinated debt payable to trusts(1):
Floating rate notes due September 2036. These notes bear a combined weighted-average rate of 2.04% at September 30, 2015 and 2.35% at December 31, 2014	36		52
Total debt issued by MUAH	2,932		750
Debt issued by MUB and other subsidiaries
Senior debt:
Fixed FHLB of San Francisco advances due February 2016. These notes bear a combined weighted-average rate of 2.50% at September 30, 2015 and 2.56% at December 31, 2014	$	500	$	800
Fixed rate 3.00% notes due June 2016	700		700
Fixed rate 1.50% notes due September 2016	499		499
Floating rate notes due September 2016. These notes, which bear interest at 0.75% above 3-month LIBOR, had a rate of 1.08% at September 30, 2015 and 1.00% at December 31, 2014	500		500
Floating rate notes due May 2017. These notes, which bear interest at 0.40% above 3-month LIBOR, had a rate of 0.70% at September 30, 2015 and 0.63% at December 31, 2014	250		250
Fixed rate 2.125% notes due June 2017	499		499
Fixed rate 2.625% notes due September 2018	1,000		1,000
Fixed rate 2.250% notes due May 2019	509		499
Senior debt due to BTMU:
Floating rate debt due January 2018. These notes, which bears interest at 0.85% above 1-month LIBOR, had a rate of 1.05% at September 30, 2015	1,000		—
Floating debt notes due January 2018. These notes, which bears interest at 0.87% above 1-month LIBOR, had a rate of 1.06% at September 30, 2015	1,500		—
Subordinated debt:
Fixed rate 5.95% notes due May 2016	704		711
Subordinated debt due to BTMU:
Floating rate subordinated debt due June 2023. This note, which bears interest at 1.20% above 3-month LIBOR, had a rate of 1.53% at September 30, 2015 and 1.45% at December 31, 2014	750		750
Capital lease obligations with a combined weighted-average interest rate of 4.92% at September 30, 2015 and December 31, 2014(1)	14		14
Total debt issued by MUB and other subsidiaries	8,425		6,222
Total long-term debt	$	11,357	$	6,972

(1) Long-term debt assumed through acquisitions