|
Loans and Allowance for Credit Losses, Nonaccrual (Details) (USD $)
In Millions, unless otherwise specified |
Jun. 30, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | $ 17,915 | $ 20,486 |
|
Total Commercial [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 4,455 | 5,824 |
|
Commercial and Industrial Loans [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 1,022 | 1,422 |
|
Commercial Real Estate Mortgage [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 2,708 | 3,322 |
|
Commercial Real Estate Construction [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 665 | 1,003 |
|
Lease Financing [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 20 | 27 |
|
Foreign Loans [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 40 | 50 |
|
Total Consumer [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 13,460 | 14,662 |
|
Real estate 1-4 family first mortgage [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 10,705 | 11,455 |
|
Real estate 1-4 family junior lien mortgage [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 2,522 | 2,922 |
|
Automobile [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | 200 | 245 |
|
Other revolving credit and installment [Member]
|
||
| Nonaccrual Loans [Abstract] | ||
| Nonaccrual loans | $ 33 | $ 40 |