Federal Home Loan Bank Advances (Tables)
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Advances from Federal Home Loan Banks [Abstract]    
Schedule of FHLB Advances, by Interest Rate Type
The following is a breakdown of the advances outstanding:
  
June 30, 2016
 
December 31, 2015
 
Amount
 
Rate
 
Amount
 
Rate
 
(Dollars in millions)
Short-term adjustable rate
$
1

 
0.70
%
 
$

 
%
Short-term fixed rate term advances
1,068

 
0.40
%
 
2,116

 
0.32
%
Long-term LIBOR adjustable advances
1,025

 
0.80
%
 
825

 
0.70
%
Long-term fixed rate advances (1)
552

 
1.44
%
 
600

 
1.37
%
Total
$
2,646

 
0.77
%
 
$
3,541

 
0.59
%

(1)
Includes the current portion of fixed rate advances of $125 million and $175 million at June 30, 2016 and December 31, 2015, respectively.

The following is a breakdown of the advances outstanding.
 
December 31,
 
2015
 
2014
 
2013
 
Amount
 
Weighted
Average
Rate
 
Amount
 
Weighted
Average
Rate
 
Amount
 
Weighted
Average
Rate
 
(Dollars in millions)
Short-term floating rate daily adjustable advances
$

 
%
 
$

 
%
 
$
216

 
0.50
%
Short-term fixed rate term advances
2,116

 
0.32
%
 
214

 
0.26
%
 
772

 
0.30
%
Long-term LIBOR adjustable advances
825

 
0.70
%
 

 
%
 

 
%
Long-term fixed rate advances
600

 
1.37
%
 
300

 
1.36
%
 

 
%
Total
$
3,541

 
0.59
%
 
$
514

 
0.90
%
 
$
988

 
0.34
%
Schedule of FHLB Advances, Disclosures
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2016
 
2015
 
2016
 
2015
 
(Dollars in millions)
Maximum outstanding at any month end
$
2,646

 
$
2,198

 
$
3,557

 
$
2,198

Average outstanding balance
2,460

 
1,828

 
2,841

 
1,497

Average remaining borrowing capacity
983

 
1,503

 
843

 
1,697

Weighted average interest rate
1.42
%
 
0.90
%
 
1.25
%
 
0.97
%
The following table highlights the Company’s Federal Home Loan Bank advances for the years ending December 31, 2015, 2014 and 2013.
 
For the Years Ended December 31,
 
2015
 
2014
 
2013
 
(Dollars in millions)
Maximum outstanding at any month end
$
3,541

 
$
1,300

 
$
2,908

Average outstanding balance
1,811

 
939

 
2,915

Average remaining borrowing capacity
1,611

 
1,947

 
735

Weighted-average interest rate
1.00
%
 
0.23
%
 
3.22
%
Schedule of FHLB, Advances, Maturity Summary
The following outlines our Federal Home Loan Bank advance final maturity dates as of June 30, 2016:
 
June 30, 2016
 
(Dollars in millions)
2016
$
1,194

2017
50

2018
125

2019

Thereafter
1,277

Total
$
2,646

The following table outlines the Company’s Federal Home Loan Bank advance final maturity dates as of December 31, 2015.
 
December 31, 2015
 
(Dollars in millions)
2016
$
2,291

2017
50

2018
125

2019

Thereafter
1,075

Total
$
3,541