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Short-Term Borrowings
12 Months Ended
Dec. 31, 2018
Short-term Debt [Abstract]  
Short-Term Borrowings
Short-Term Borrowings
 
Short-term borrowings consisted of the following:
 
December 31,
  
2018
 
 
 
Rate
 
2017
 
 
 
Rate
 
2016
 
 
 
Rate
 
(dollars are in millions)
Securities sold under repurchase agreements(1)
$
1,466

 
 
 
4.16
%
 
$
3,365

 
 
 
2.10
%
 
$
3,672

 
 
 
1.17
%
Average during year
 
 
$
4,189

 
2.86

 
 
 
$
8,100

 
1.28

 
 
 
$
7,272

 
.72

Maximum month-end balance
 
 
5,829

 
 
 
 
 
11,351

 
 
 
 
 
11,950

 
 
Commercial paper
2,532

 
 
 
2.70

 
1,154

 
 
 
1.56

 
1,251

 
 
 
1.20

Other
182

 
 
 
 
 
131

 
 
 
 
 
178

 
 
 
 
Total short-term borrowings
$
4,180

 
 
 
 
 
$
4,650

 
 
 
 
 
$
5,101

 
 
 
 
 
(1) 
The following table presents the quarter end and average quarterly balances of securities sold under repurchase agreements:
 
2018
 
2017
 
2016
 
Fourth
 
Third
 
Second
 
First
 
Fourth
 
Third
 
Second
 
First
 
Fourth
 
Third
 
Second
 
First
 
(in millions)
Quarter end balance
$
1,466

 
$
2,471

 
$
2,743

 
$
2,792

 
$
3,365

 
$
6,494

 
$
7,558

 
$
4,069

 
$
3,672

 
$
3,986

 
$
3,969

 
$
5,529

Average quarterly balance
3,045

 
3,550

 
5,008

 
5,182

 
5,457

 
12,566

 
9,272

 
5,050

 
4,593

 
5,959

 
10,461

 
8,117