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Commercial Paper and Other Short-Term Borrowings
3 Months Ended
Mar. 31, 2017
Short-term Debt [Abstract]  
Commercial Paper and Other Short-Term Borrowings
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)
 
March 31, 2017
 
December 31, 2016
Debt issued by MUB
 
 
 
 
Federal funds purchased, with weighted average interest rates of 0.72% and 0.50% at March 31, 2017 and December 31, 2016, respectively
 
$
40

 
$
26

Commercial paper, with a weighted average interest rate of 0.71% and 0.55% at March 31, 2017 and December 31, 2016, respectively
 
651

 
263

Federal Home Loan Bank advances, with a weighted average interest rate of 0.62% and 0.59% at March 31, 2017 and December 31, 2016, respectively
 
1,600

 
700

Total debt issued by MUB
 
2,291

 
989

Debt issued by other MUAH subsidiaries
 
 
 
 
Short-term debt due to BTMU, with weighted average interest rates of 1.47% and 0.49% at March 31, 2017 and December 31, 2016, respectively
 
425

 
679

Short-term debt due to affiliates, with weighted average interest rates of (0.07)% and (0.04)% at March 31, 2017 and December 31, 2016, respectively
 
771

 
692

Total debt issued by other MUAH subsidiaries

 
1,196

 
1,371

Total commercial paper and other short-term borrowings
 
$
3,487

 
$
2,360



Short-term debt due to BTMU consists of both secured and unsecured fixed and floating rate borrowings.

MUSA maintains an uncommitted, unsecured lending facility with Mitsubishi UFJ Securities Holdings Co., Ltd. under which it may borrow up to $1.4 billion. Under the terms of the facility, MUSA can choose to borrow in Japanese Yen or US Dollars. Japanese Yen denominated borrowings include an extension option allowing MUSA to extend the maturity of an individual draw by 100 days at any time prior to its original, stated maturity. At March 31, 2017, MUSA had ¥86 billion ($771 million USD equivalent) drawn under this facility.