Fair Value Measurements (Assets Measured at Fair Value on a Non-recurring Basis) (Details) - USD ($)
|
3 Months Ended |
9 Months Ended |
|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Dec. 31, 2015 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Loans held-for-sale |
$ 3,352,000,000
|
|
$ 3,352,000,000
|
|
$ 2,541,000,000
|
| Total assets at fair value |
3,432,000,000
|
|
3,432,000,000
|
|
2,652,000,000
|
| Net gain on loan sales |
94,000,000
|
$ 68,000,000
|
259,000,000
|
$ 242,000,000
|
|
| Nonrecurring |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Repossessed assets |
15,000,000
|
|
15,000,000
|
|
17,000,000
|
| Total assets at fair value |
48,000,000
|
|
48,000,000
|
|
67,000,000
|
| Fair value losses on repossessed assets |
0
|
1,000,000
|
2,000,000
|
2,000,000
|
|
| Net gain on loan sales |
1,000,000
|
1,000,000
|
2,000,000
|
2,000,000
|
|
| Nonrecurring | Interest income on loans |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair value losses on loans (less than for $1 million) |
1,000,000
|
1,000,000
|
1,000,000
|
1,000,000
|
|
| Nonrecurring | Provision for loan losses |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair value losses on loans (less than for $1 million) |
11,000,000
|
$ 20,000,000
|
31,000,000
|
$ 76,000,000
|
|
| Nonrecurring | Residential first mortgage loans |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Loans held-for-sale |
10,000,000
|
|
10,000,000
|
|
8,000,000
|
| Impaired loans held-for-investment |
22,000,000
|
|
22,000,000
|
|
40,000,000
|
| Nonrecurring | Commercial and industrial |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Impaired loans held-for-investment |
1,000,000
|
|
1,000,000
|
|
2,000,000
|
| Nonrecurring | Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Repossessed assets |
0
|
|
0
|
|
0
|
| Total assets at fair value |
10,000,000
|
|
10,000,000
|
|
8,000,000
|
| Nonrecurring | Level 2 | Residential first mortgage loans |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Loans held-for-sale |
10,000,000
|
|
10,000,000
|
|
8,000,000
|
| Impaired loans held-for-investment |
0
|
|
0
|
|
0
|
| Nonrecurring | Level 2 | Commercial and industrial |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Impaired loans held-for-investment |
0
|
|
0
|
|
0
|
| Nonrecurring | Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Repossessed assets |
15,000,000
|
|
15,000,000
|
|
17,000,000
|
| Total assets at fair value |
38,000,000
|
|
38,000,000
|
|
59,000,000
|
| Nonrecurring | Level 3 | Residential first mortgage loans |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Loans held-for-sale |
0
|
|
0
|
|
0
|
| Impaired loans held-for-investment |
22,000,000
|
|
22,000,000
|
|
40,000,000
|
| Nonrecurring | Level 3 | Commercial and industrial |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Impaired loans held-for-investment |
$ 1,000,000
|
|
$ 1,000,000
|
|
$ 2,000,000
|