Loans Held-for-Investment (Tables)
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Receivables [Abstract]    
Schedule of Loans Held-for-investment
Loans held-for-investment are summarized as follows:
 
June 30,
2016
 
December 31,
2015
 
(Dollars in millions)
Consumer loans
 
 
 
Residential first mortgage
$
2,075

 
$
3,100

Second mortgage
127

 
135

HELOC
346

 
384

Other
32

 
31

Total consumer loans
2,580

 
3,650

Commercial loans
 
 
 
Commercial real estate (1)
976

 
814

Commercial and industrial
615

 
552

Warehouse lending
1,651

 
1,336

Total commercial loans
3,242

 
2,702

Total loans held-for-investment
$
5,822

 
$
6,352


(1)
Includes $221 million and $188 million, respectively, of commercial owner occupied real estate loans at June 30, 2016 and December 31, 2015.
Loans held-for-investment are summarized as follows.
 
December 31, 2015
 
December 31, 2014
 
(Dollars in millions)
Consumer loans
 
Residential first mortgage
$
3,100

 
$
2,193

Second mortgage
135

 
149

HELOC
384

 
257

Other
31

 
31

Total consumer loans
3,650

 
2,630

Commercial loans
 
 
 
Commercial real estate
814

 
620

Commercial and industrial
552

 
429

Warehouse lending
1,336

 
769

Total commercial loans
2,702

 
1,818

Total consumer and commercial loans held-for-investment
6,352

 
4,448

Allowance for Loan Losses
The allowance for loan losses by class of loan are summarized in the following table:
 
Residential
First
Mortgage (1)
 
Second
Mortgage
 
HELOC
 
Other
Consumer
 
Commercial
Real Estate
 
Commercial
and Industrial
 
Warehouse
Lending
 
Total
 
(Dollars in millions)
Three Months Ended June 30, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance allowance for loan losses
$
95

 
$
10

 
$
20

 
$
2

 
$
19

 
$
10

 
$
6

 
$
162

Charge-offs (2)
(8
)
 
(1
)
 
—

 
(1
)
 
—

 
—

 
—

 
(10
)
Recoveries
1

 
1

 
(1
)
 
—

 
—

 
—

 
—

 
1

(Benefit) provision
(7
)
 
—

 
1

 
—

 
—

 
1

 
2

 
(3
)
Ending balance allowance for loan losses
$
81

 
$
10

 
$
20

 
$
1

 
$
19

 
$
11

 
$
8

 
$
150

Three Months Ended June 30, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance allowance for loan losses
$
188

 
$
12

 
$
21

 
$
—

 
$
16

 
$
12

 
$
4

 
$
253

Charge-offs (2)
(19
)
 
(1
)
 
—

 
(1
)
 
—

 
—

 
—

 
(21
)
Recoveries
1

 
1

 
—

 
1

 
—

 
—

 
—

 
3

(Benefit) provision
(19
)
 
2

 
4

 
1

 
(1
)
 
—

 
—

 
(13
)
Ending balance allowance for loan losses
$
151

 
$
14


$
25


$
1


$
15


$
12


$
4


$
222

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Six Months Ended June 30, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance allowance for loan losses
$
116

 
$
11

 
$
21

 
$
2

 
$
18

 
$
13

 
$
6

 
$
187

Charge-offs (2)
(19
)
 
(2
)
 
(1
)
 
(2
)
 
—

 
—

 
—

 
(24
)
Recoveries
1

 
1

 
—

 
1

 
—

 
—

 
—

 
3

Provision (benefit)
(17
)
 
—

 
—

 
—

 
1

 
(2
)
 
2

 
(16
)
Ending balance allowance for loan losses
$
81

 
$
10

 
$
20

 
$
1

 
$
19

 
$
11

 
$
8

 
$
150

Six Months Ended June 30, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance allowance for loan losses
$
234

 
$
12

 
$
19

 
$
1

 
$
17

 
$
11

 
$
3

 
$
297

Charge-offs (2)
(60
)
 
(2
)
 
(1
)
 
(1
)
 
—

 
—

 
—

 
(64
)
Recoveries
2

 
1

 
—

 
1

 
2

 
—

 
—

 
6

Provision (benefit)
(25
)
 
3

 
7

 
—

 
(4
)
 
1

 
1

 
(17
)
Ending balance allowance for loan losses
$
151

 
$
14

 
$
25

 
$
1

 
$
15

 
$
12

 
$
4

 
$
222

(1)
Includes allowance and charge-offs related to loans with government guarantees.
(2)
Includes charge-offs of $2 million and $15 million related to the sale or transfer of loans during the three months ended June 30, 2016 and June 30, 2015, respectively, and $8 million and $51 million related to the sale of loans during the six months ended June 30, 2016 and June 30, 2015, respectively. Also includes charge-offs related to loans with government guarantees of $4 million and $7 million during the three and six months ended June 30, 2016, respectively.


The loans held-for-investment and allowance for loan losses by class of loan is summarized in the following table:
 
Residential
First
Mortgage (1)
 
Second
Mortgage
 
HELOC
 
Other
Consumer
 
Commercial
Real Estate
 
Commercial
and Industrial
 
Warehouse
Lending
 
Total
 
(Dollars in millions)
June 30, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans held-for-investment
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
43

 
$
27

 
$
6

 
$
—

 
$
—

 
$
1

 
$
—

 
$
77

Collectively evaluated (2)
2,027

 
61

 
296

 
32

 
976

 
614

 
1,651

 
5,657

Total loans
$
2,070

 
$
88


$
302


$
32


$
976


$
615


$
1,651


$
5,734

Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
7

 
$
6

 
$
3

 
$
—

 
$
—

 
$
—

 
$
—

 
$
16

Collectively evaluated (2)
74

 
4

 
17

 
1

 
19

 
11

 
8

 
134

Total allowance for loan losses
$
81

 
$
10


$
20


$
1


$
19


$
11


$
8


$
150

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans held-for-investment
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
87

 
$
28

 
$
3

 
$
—

 
$
—

 
$
2

 
$
—

 
$
120

Collectively evaluated (2)
3,007

 
65

 
318

 
31

 
814

 
550

 
1,336

 
6,121

Total loans
$
3,094

 
$
93

 
$
321

 
$
31

 
$
814

 
$
552

 
$
1,336

 
$
6,241

Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
12

 
$
6

 
$
1

 
$
1

 
$
—

 
$
—

 
$
—

 
$
20

Collectively evaluated (2)
104

 
5

 
20

 
1

 
18

 
13

 
6

 
167

Total allowance for loan losses
$
116

 
$
11

 
$
21

 
$
2

 
$
18

 
$
13

 
$
6

 
$
187

 
(1)
Includes allowance related to loans with government guarantees.
(2)
Excludes loans carried under the fair value option.
The allowance for loan losses by class of loan and evaluation type are summarized in the following tables.
 
Residential
First
Mortgage
 
Second
Mortgage
 
HELOC
 
Other
Consumer
 
Commercial
Real
Estate
 
Commercial
and
Industrial
 
Warehouse
Lending
 
Total
Year Ended December 31, 2015
(Dollars in millions)
Beginning balance allowance for loan losses
$
234

 
$
12

 
$
19

 
$
1

 
$
17

 
$
11

 
$
3

 
$
297

Charge-offs
(87
)
 
(4
)
 
(3
)
 
(4
)
 
—

 
(3
)
 
—

 
(101
)
Recoveries
3

 
2

 
—

 
3

 
2

 
—

 
—

 
10

Provision
(34
)
 
1

 
5

 
2

 
(1
)
 
5

 
3

 
(19
)
Ending balance allowance for loan losses
$
116

 
$
11

 
$
21

 
$
2

 
$
18

 
$
13

 
$
6

 
$
187

Year Ended December 31, 2014
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance allowance for loan losses
$
162

 
$
12

 
$
8

 
$
2

 
$
19

 
$
3

 
$
1

 
$
207

Charge-offs
(38
)
 
(3
)
 
(6
)
 
(2
)
 
(3
)
 
—

 
—

 
(52
)
Recoveries
3

 
1

 
—

 
3

 
3

 
—

 
—

 
10

Provision
107

 
2

 
17

 
(2
)
 
(2
)
 
8

 
2

 
132

Ending balance allowance for loan losses
$
234

 
$
12

 
$
19

 
$
1

 
$
17

 
$
11

 
$
3

 
$
297

Year Ended December 31, 2013
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance allowance for loan losses
$
220

 
$
20

 
$
18

 
$
2

 
$
41

 
$
3

 
$
1

 
$
305

Charge-offs
(133
)
 
(6
)
 
(5
)
 
(4
)
 
(47
)
 
(2
)
 
—

 
(197
)
Recoveries
15

 
1

 
1

 
2

 
10

 
—

 
—

 
29

Provision
60

 
(3
)
 
(6
)
 
2

 
15

 
2

 
—

 
70

Ending balance allowance for loan losses
$
162

 
$
12

 
$
8

 
$
2

 
$
19

 
$
3

 
$
1

 
$
207

 
Residential
First
Mortgage
 
Second
Mortgage
 
HELOC
 
Other
Consumer
 
Commercial
Real
Estate
 
Commercial
and
Industrial
 
Warehouse
Lending
 
Total
December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans held-for-investment
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
87

 
$
28

 
$
3

 
$
—

 
$
—

 
$
2

 
$
—

 
$
120

Collectively evaluated (1)
3,007

 
65

 
318

 
31

 
814

 
550

 
1,336

 
6,121

Total loans
$
3,094

 
$
93

 
$
321

 
$
31

 
$
814

 
$
552

 
$
1,336

 
$
6,241

Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
12

 
$
6

 
$
1

 
$
1

 
$
—

 
$
—

 
$
—

 
$
20

Collectively evaluated (1)
104

 
5

 
20

 
1

 
18

 
13

 
6

 
167

Total allowance for loan losses
$
116

 
$
11

 
$
21

 
$
2

 
$
18

 
$
13

 
$
6

 
$
187

December 31, 2014
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans held-for-investment
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
385

 
$
31

 
$
1

 
$
—

 
$
—

 
$
—

 
$
—

 
$
417

Collectively evaluated (1)
1,782

 
65

 
124

 
31

 
620

 
429

 
769

 
3,820

Total loans
$
2,167

 
$
96

 
$
125

 
$
31

 
$
620

 
$
429

 
$
769

 
$
4,237

Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
82

 
$
5

 
$
1

 
$
—

 
$
—

 
$
—

 
$
—

 
$
88

Collectively evaluated (1)
152

 
7

 
18

 
1

 
17

 
11

 
3

 
209

Total allowance for loan losses
$
234

 
$
12

 
$
19

 
$
1

 
$
17

 
$
11

 
$
3

 
$
297

 
(1)
Excludes loans carried under the fair value option.

Past Due Loans
The following table sets forth the loans held-for-investment aging analysis as of June 30, 2016 and December 31, 2015, of past due and current loans:
 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
Greater Past
Due (1)
 
Total
Past Due
 
Current
 
Total
Investment
Loans
 
(Dollars in millions)
June 30, 2016
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
3

 
$
1

 
$
32

 
$
36

 
$
2,039

 
$
2,075

Second mortgage
—

 
—

 
3

 
3

 
124

 
127

HELOC
2

 
1

 
9

 
12

 
334

 
346

Other
—

 
—

 
—

 
—

 
32

 
32

Total consumer loans
5

 
2

 
44

 
51

 
2,529

 
2,580

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate
—

 
—

 
—

 
—

 
976

 
976

Commercial and industrial
—

 
—

 
—

 
—

 
615

 
615

Warehouse lending
—

 
—

 
—

 
—

 
1,651

 
1,651

Total commercial loans
—

 
—

 
—

 
—

 
3,242

 
3,242

Total loans (2)
$
5

 
$
2

 
$
44

 
$
51

 
$
5,771

 
$
5,822

December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
7

 
$
3

 
$
53

 
$
63

 
$
3,037

 
$
3,100

Second mortgage
—

 
—

 
2

 
2

 
133

 
135

HELOC
2

 
1

 
9

 
12

 
372

 
384

Other
1

 
—

 
—

 
1

 
30

 
31

Total consumer loans
10

 
4

 
64

 
78

 
3,572

 
3,650

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate
—

 
—

 
—

 
—

 
814

 
814

Commercial and industrial
—

 
—

 
2

 
2

 
550

 
552

Warehouse lending
—

 
—

 
—

 
—

 
1,336

 
1,336

Total commercial loans
—

 
—

 
2

 
2

 
2,700

 
2,702

Total loans (2)
$
10

 
$
4

 
$
66

 
$
80

 
$
6,272

 
$
6,352


(1)
Includes loans that are less than 90 days past due, which have been placed on nonaccrual.
(2)
Includes $10 million of loans 90 days or greater past due, accounted for under the fair value option at both June 30, 2016 and December 31, 2015.
The following table sets forth the loans held-for-investment aging analysis as of December 31, 2015 and December 31, 2014, of past due and current loans.
 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
Greater Past
Due (1)
 
Total
Past Due
 
Current
 
Total
Investment
Loans
 
(Dollars in millions)
December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
7

 
$
3

 
$
53

 
$
63

 
$
3,037

 
$
3,100

Second mortgage
—

 
—

 
2

 
2

 
133

 
135

HELOC
2

 
1

 
9

 
12

 
372

 
384

Other
1

 
—

 
—

 
1

 
30

 
31

Total consumer loans
10

 
4

 
64

 
78

 
3,572

 
3,650

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate
—

 
—

 
—

 
—

 
814

 
814

Commercial and industrial
—

 
—

 
2

 
2

 
550

 
552

Warehouse lending
—

 
—

 
—

 
—

 
1,336

 
1,336

Total commercial loans
—

 
—

 
2

 
2

 
2,700

 
2,702

Total loans (2)
$
10

 
$
4

 
$
66

 
$
80

 
$
6,272

 
$
6,352

December 31, 2014
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
29

 
$
8

 
$
115

 
$
152

 
$
2,041

 
$
2,193

Second mortgage
1

 
1

 
2

 
4

 
145

 
149

HELOC
4

 
1

 
3

 
8

 
249

 
257

Other
—

 
—

 
—

 
—

 
31

 
31

Total consumer loans
34

 
10

 
120

 
164

 
2,466

 
2,630

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate
—

 
—

 
—

 
—

 
620

 
620

Commercial and industrial
—

 
—

 
—

 
—

 
429

 
429

Warehouse lending
—

 
—

 
—

 
—

 
769

 
769

Total commercial loans
—

 
—

 
—

 
—

 
1,818

 
1,818

Total loans (2)
$
34

 
$
10

 
$
120

 
$
164

 
$
4,284

 
$
4,448


(1)
Includes performing nonaccrual loans that are less than 90 days delinquent and for which interest cannot be accrued.
(2)
Includes $10 million and $5 million of loans 90 days or greater past due accounted for under the fair value option at December 31, 2015 and 2014, respectively.
Troubled Debt Restructurings
The following table provides a summary of newly modified TDRs during the three and six months ended June 30, 2016 and 2015.
 
New TDRs
 
Number of Accounts
 
Pre-Modification Unpaid Principal Balance
 
Post-Modification Unpaid Principal Balance (1)
 
Increase in Allowance at Modification
Three Months Ended June 30, 2016
 
 
(Dollars in millions)
    Residential first mortgages
3

 
$
1

 
$
1

 
$
—

    Second mortgages
5

 
—

 
—

 
—

    HELOC (2)(3)
20

 
2

 
2

 
—

           Total TDR loans
28

 
$
3


$
3

 
$
—

 
 
 
 
 
 
 
 
Three Months Ended June 30, 2015
 
 
 
    Residential first mortgages
77

 
$
23

 
$
22

 
$
(2
)
    Second mortgages
35

 
1

 
1

 
—

    HELOC (2)
122

 
8

 
7

 
—

    Other consumer
3

 
—

 
—

 
—

           Total TDR loans
237

 
$
32

 
$
30

 
$
(2
)
 
 
 
 
 
 
 
 
Six Months Ended June 30, 2016

 
 
 
 
 
 
    Residential first mortgages
16

 
$
3

 
$
4

 
$
—

    Second mortgages
26

 
1

 
1

 
—

    HELOC (2)(3)
85

 
6

 
5

 
—

    Commercial and industrial
1

 
2

 
1

 
—

           Total TDR loans
128

 
$
12

 
$
11

 
$
—

 
 
 
 
 
 
 
 
Six Months Ended June 30, 2015

 
 
 
 
 
 
    Residential first mortgages
191

 
$
53

 
$
52

 
$
(1
)
    Second mortgages
68

 
3

 
2

 
—

    HELOC (2)(3)
158

 
8

 
7

 
—

    Other consumer
3

 
—

 
—

 
—

           Total TDR loans
420

 
$
64

 
$
61

 
$
(1
)
 
(1)
Post-modification balances include past due amounts that are capitalized at modification date.
(2)
HELOC post-modification unpaid principal balance reflects write downs.
(3)
Includes loans carried at the fair value option.

    
The following table provides a summary of TDR loans that were modified within the previous 12 months, which subsequently defaulted during the three and six months ended June 30, 2016 and 2015. All TDR classes within consumer and commercial loan portfolios are considered subsequently defaulted when they are greater than 90 days past due.
 
TDRs that were modified in the previous 12 months,
which have subsequently defaulted
 
Number of
Accounts
 
Unpaid Principal Balance
 
Increase in Allowance at Subsequent Default
Three Months Ended June 30, 2015
 
 
(Dollars in millions)
Second mortgages
1

 
$
—

 
$
—

Total TDR loans
1

 
$
—

 
$
—

Six Months Ended June 30, 2016
 
 
 
 
 
Residential first mortgages
1

 
$
—

 
$
—

HELOC (1)
4

 
—

 
—

Total TDR loans
5

 
$
—

 
$
—

Six Months Ended June 30, 2015
 
 
 
 
 
Second mortgages
1

 
$
—

 
$
—

Total TDR loans
1

 
$
—

 
$
—

(1)
HELOC post-modification unpaid principal balance reflects write downs.
The following table provides a summary of TDRs outstanding by type and performing status:
 
TDRs
 
Performing
 
Nonperforming
 
Total
June 30, 2016
(Dollars in millions)
Consumer loans
 
 
 
 
 
Residential first mortgage
$
21

 
$
13

 
$
34

Second mortgage
30

 
1

 
31

HELOC
21

 
7

 
28

Total consumer loans
72

 
21

 
93

Commercial loans
 
 
 
 
 
Commercial and industrial
1

 
—

 
1

Total commercial loans
1

 
—

 
1

Total TDRs (1)(2)
$
73

 
$
21

 
$
94

 
 
 
 
 
 
December 31, 2015
 
 
 
 
 
Consumer loans 
 
 
 
 
 
Residential first mortgage
$
49

 
$
27

 
$
76

Second mortgage
32

 
1

 
33

HELOC
20

 
7

 
27

Total TDRs (1)(2)
$
101

 
$
35

 
$
136

(1)
The allowance for loan losses on consumer TDR loans totaled $12 million and $15 million at June 30, 2016 and December 31, 2015, respectively.
(2)
Includes $30 million and $32 million of TDR loans accounted for under the fair value option at June 30, 2016 and December 31, 2015, respectively.
The following table provides a summary of TDRs by type and performing status.
 
TDRs
 
Performing
 
Nonperforming
 
Total
December 31, 2015
(Dollars in millions)
Consumer loans (1)
 
 
 
 
 
Residential first mortgage
$
49

 
$
27

 
$
76

Second mortgage
32

 
1

 
33

HELOC
20

 
7

 
27

Total TDRs (2)
$
101

 
$
35

 
$
136

 
 
 
 
 
 
December 31, 2014
 
Consumer loans (1)
 
 
 
 
 
Residential first mortgage
$
306

 
$
44

 
$
350

Second mortgage
35

 
1

 
36

HELOC
20

 
1

 
21

Total consumer loans
361

 
46

 
407

Commercial loans
 
 
 
 
 
Commercial real estate
1

 
—

 
1

Total TDRs (2)
$
362

 
$
46

 
$
408

(1)
The allowance for loan losses on consumer TDR loans totaled $15 million and $81 million at December 31, 2015 and 2014, respectively.
(2)
Includes $32 million and $30 million of TDR loans accounted for under the fair value option at December 31, 2015 and 2014, respectively.
Schedule of Troubled Debt Restructuring, Number of Accounts, Pre-Modification and Post-Modification Unpaid Principal Balances  
The following table provides a summary of newly modified TDRs and TDR loans in the past 12 months that have been subsequently defaulted during the years ended December 31, 2015, 2014 and 2013. All TDR classes within consumer and commercial loan portfolios are considered subsequently defaulted when greater that 90 days past due.
 
New TDRs
 
Number of
Accounts
 
Pre-Modification Unpaid
Principal Balance
 
Post-Modification Unpaid
Principal Balance (1)
 
Increase (Decrease) in Allowance at Modification
Year Ended December 31, 2015
(Dollars in millions)
Residential first mortgages
325

 
$
81

 
$
80

 
$
(2
)
Second mortgages
97

 
4

 
3

 
—

HELOC (2)
273

 
17

 
15

 
—

Other consumer
3

 
—

 
—

 
—

Total TDR loans
698

 
$
102

 
$
98

 
$
(2
)
Year Ended December 31, 2014
 
 
 
 
 
 
 
Residential first mortgages
165

 
$
48

 
$
47

 
$
3

Second mortgages 
325

 
11

 
10

 
—

HELOC (2)
30

 
1

 
1

 
—

Total TDR loans
520

 
$
60

 
$
58

 
$
3

Year Ended December 31, 2013
 
 
 
 
 
 
 
Residential first mortgages
322

 
$
86

 
$
75

 
$
2

Second mortgages (3)
571

 
22

 
20

 
1

HELOC (2) (3)
313

 
27

 
23

 
—

Commercial real estate
5

 
3

 
3

 
—

Total TDR loans
1,211

 
$
138

 
$
121

 
$
3

 
TDRs that subsequently defaulted in previous 12 months (4)
 
Number of
Accounts
 
Unpaid Principal Balance
 
Increase (Decrease) in Allowance at Subsequent Default
Year Ended December 31, 2015
(Dollars in millions)
Residential first mortgages
3

 
$
—

 
$
—

Second mortgages
2

 
—

 
—

HELOC (2)
3

 
—

 
—

Total TDR loans
8

 
$
—

 
$
—

Year Ended December 31, 2014
 
 
 
 
 
Residential first mortgages
2

 
$
—

 
$
—

Second mortgages
18

 
—

 
—

HELOC (2)
5

 
—

 
—

Total TDR loans
25

 
$
—

 
$
—

Year Ended December 31, 2013
 
 
 
 
 
Residential first mortgages
26

 
$
6

 
$
1

Second mortgages
41

 
1

 
1

Commercial real estate
33

 
1

 
—

Total TDR loans
100

 
$
8

 
$
2

 
(1)
Post-modification balances include past due amounts that are capitalized at modification date.
(2)
HELOC post-modification unpaid principal balance reflects write downs.
(3)
New TDRs during the year ended December 31, 2013, include 463 loans for a total of $31 million of post modification unpaid principal balance second mortgage and HELOC loans carried at fair value.
(4)
Subsequent default is defined as a payment re-defaulted within 12 months of the restructuring date.
Impaired Loans
The following table presents individually evaluated impaired loans and the associated allowance: 
 
June 30, 2016
 
December 31, 2015
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
(Dollars in millions)
With no related allowance recorded
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage loans
$
2

 
$
2

 
$
—

 
$
20

 
$
20

 
$
—

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
1

 
1

 
—

 
5

 
2

 
—

 
$
3

 
$
3

 
$
—

 
$
25

 
$
22

 
$
—

With an allowance recorded
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
41

 
$
41

 
$
6

 
$
65

 
$
67

 
$
12

Second mortgage
26

 
27

 
7

 
28

 
28

 
6

HELOC
6

 
6

 
3

 
3

 
3

 
1

Other consumer
—

 
—

 
—

 
—

 
—

 
1

 
$
73

 
$
74

 
$
16

 
$
96

 
$
98

 
$
20

Total
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
43

 
$
43

 
$
6

 
$
85

 
$
87

 
$
12

Second mortgage
26

 
27

 
7

 
28

 
28

 
6

HELOC
6

 
6

 
3

 
3

 
3

 
1

Other consumer
—

 
—

 
—

 
—

 
—

 
1

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
1

 
1

 
—

 
5

 
2

 
—

Total impaired loans
$
76

 
$
77

 
$
16

 
$
121

 
$
120

 
$
20


The following table presents average impaired loans and the interest income recognized: 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2016
 
2015
 
2016
 
2015
 
Average Recorded Investment
 
Interest Income Recognized
 
Average Recorded Investment
 
Interest Income Recognized
 
Average Recorded Investment
 
Interest Income Recognized
 
Average Recorded Investment
 
Interest Income Recognized
 
(Dollars in millions)
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
47

 
$
—

 
$
116

 
$
1

 
$
60

 
$
1

 
$
210

 
$
2

Second mortgage
27

 
1

 
31

 
—

 
27

 
1

 
31

 
1

HELOC
5

 
—

 
2

 
—

 
5

 
—

 
2

 
—

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
1

 
—

 
—

 
—

 
3

 
—

 
—

 
—

Total impaired loans
$
80

 
$
1

 
$
149

 
$
1

 
$
95

 
$
2

 
$
243

 
$
3

The following table presents impaired loans with the associated allowance recorded. 
 
December 31, 2015
 
December 31, 2014
 
Recorded
Investment
 
Unpaid Principal
Balance
 
Related
Allowance
 
Recorded
Investment
 
Unpaid Principal
Balance
 
Related
Allowance
 
(Dollars in millions)
With no related allowance recorded
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
20

 
$
20

 
$
—

 
$
63

 
$
78

 
$
—

Second mortgage
—

 
—

 
—

 
1

 
6

 
—

HELOC
—

 
—

 
—

 
—

 
1

 
—

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
5

 
2

 
—

 
—

 
—

 
—

 
$
25

 
$
22

 
$
—

 
$
64

 
$
85

 
$
—

With an allowance recorded
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
65

 
$
67

 
$
12

 
$
321

 
$
326

 
$
82

Second mortgage
28

 
28

 
6

 
29

 
29

 
6

HELOC
3

 
3

 
1

 
1

 
1

 
1

Other consumer
—

 
—

 
1

 
—

 
—

 
—

 
$
96

 
$
98

 
$
20

 
$
351

 
$
356

 
$
89

Total
 
 
 
 
 
 
 
 
 
 
 
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
85

 
$
87

 
$
12

 
$
384

 
$
404

 
$
82

Second mortgage
28

 
28

 
6

 
30

 
35

 
6

HELOC
3

 
3

 
1

 
1

 
2

 
1

Other consumer
—

 
—

 
1

 
—

 
—

 
—

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
5

 
2

 
—

 
—

 
—

 
—

Total impaired loans
$
121

 
$
120

 
$
20

 
$
415

 
$
441

 
$
89

        
The following table presents average impaired loans and the interest income recognized.
 
For the Years Ended December 31,
 
2015
 
2014
 
2013
 
Average
Recorded
Investment
 
Interest Income Recognized
 
Average
Recorded
Investment
 
Interest Income Recognized
 
Average
Recorded
Investment
 
Interest Income Recognized
 
(Dollars in millions)
Consumer loans
 
 
 
 
 
 
 
 
 
 
 
Residential first mortgage
$
150

 
$
5

 
$
402

 
$
11

 
$
603

 
$
17

Second mortgage
29

 
—

 
28

 
1

 
21

 
1

HELOC
10

 
—

 
1

 
—

 
1

 
—

Commercial loans
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate
—

 
—

 
1

 
—

 
46

 
1

Commercial and industrial
2

 
—

 
—

 
—

 
2

 
—

Total impaired loans
$
191

 
$
5

 
$
432

 
$
12

 
$
673

 
$
19


Loan Credit Quality Indicators
Commercial Credit Loans
Commercial Real
Estate
 
Commercial and
Industrial
 
Warehouse
 
Total
Commercial
June 30, 2016
(Dollars in millions)
Grade
 
 
 
 
 
 
 
Pass
$
934

 
$
562

 
$
1,505

 
$
3,001

Watch
38

 
20

 
146

 
204

Special mention
3

 
32

 
—

 
35

Substandard
1

 
1

 
—

 
2

Total loans
$
976

 
$
615

 
$
1,651

 
$
3,242

 
 
 
 
 
 
 
 
December 31, 2015
 
 
 
 
 
 
 
Pass
$
766

 
$
492

 
$
1,181

 
$
2,439

Watch
42

 
30

 
155

 
227

Special mention
2

 
21

 
—

 
23

Substandard
4

 
9

 
—

 
13

Total loans
$
814

 
$
552

 
$
1,336

 
$
2,702

Consumer Credit Loans
Residential First
Mortgage
 
Second 
Mortgage
 
HELOC
 
Other Consumer
 
Total
June 30, 2016
(Dollars in millions)
Grade
 
 
 
 
 
 
 
 
 
Pass
$
2,019

 
$
93

 
$
315

 
$
32

 
$
2,459

Watch
21

 
31

 
22

 
—

 
74

Substandard
35

 
3

 
9

 
—

 
47

Total loans
$
2,075

 
$
127

 
$
346

 
$
32

 
$
2,580

 
 
 
 
 
 
 
 
 
 
December 31, 2015
 
Pass
$
2,993

 
$
101

 
$
353

 
$
31

 
$
3,478

Watch
49

 
32

 
22

 
—

 
103

Substandard
58

 
2

 
9

 
—

 
69

Total loans
$
3,100

 
$
135

 
$
384

 
$
31

 
$
3,650

 
December 31, 2015
Commercial Credit Loans
Commercial  Real
Estate
 
Commercial and
Industrial
 
Warehouse
 
Total
Commercial
 
(Dollars in millions)
Grade
 
 
 
 
 
 
 
Pass
$
766

 
$
492

 
$
1,181

 
$
2,439

Watch
42

 
30

 
155

 
227

Special Mention
2

 
21

 
—

 
23

Substandard
4

 
9

 
—

 
13

Total loans
$
814

 
$
552

 
$
1,336

 
$
2,702

 
December 31, 2015
Consumer Credit Loans
Residential First Mortgage
 
Second Mortgage
 
HELOC
 
Other Consumer
 
Total
 
(Dollars in millions)
Grade
 
 
 
 
 
 
 
 
 
Pass
$
2,993

 
$
101

 
$
353

 
$
31

 
$
3,478

Watch
49

 
32

 
22

 
—

 
103

Substandard
58

 
2

 
9

 
—

 
69

Total loans
$
3,100

 
$
135

 
$
384

 
$
31

 
$
3,650

 
December 31, 2014
Commercial Credit Loans
Commercial  Real
Estate
 
Commercial and
Industrial
 
Warehouse
 
Total
Commercial
 
(Dollars in millions)
Grade
 
Pass
$
578

 
$
398

 
$
650

 
$
1,626

Watch
29

 
10

 
119

 
158

Special mention
2

 
—

 
—

 
2

Substandard
11

 
21

 
—

 
32

Total loans
$
620

 
$
429

 
$
769

 
$
1,818

 
December 31, 2014
Consumer Credit Loans
Residential First Mortgage
 
Second Mortgage
 
HELOC
 
Other Consumer
 
Total
 
(Dollars in millions)
Grade
 
Pass
$
1,764

 
$
111

 
$
233

 
$
31

 
$
2,139

Watch
314

 
36

 
21

 
—

 
371

Substandard
115

 
2

 
3

 
—

 
120

Total loans
$
2,193

 
$
149

 
$
257

 
$
31

 
$
2,630