|
Loans and Allowance for Credit Losses, Impaired Loans (Details) (USD $)
In Millions, unless otherwise specified
|
Dec. 31, 2011
|
Dec. 31, 2010
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
$ 39,332 |
$ 36,041 |
| Impaired Financing Receivable, Recorded Investment |
28,010 |
25,738 |
| Impaired Financing Receivable, Related Allowance |
6,678 |
6,202 |
|
Commercial and Industrial Loans [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
7,191 |
8,190 |
| Impaired Financing Receivable, Recorded Investment |
3,072 |
3,600 |
| Impaired Financing Receivable, Related Allowance |
501 |
607 |
|
Commercial Real Estate Mortgage [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
7,490 |
7,439 |
| Impaired Financing Receivable, Recorded Investment |
5,114 |
5,239 |
| Impaired Financing Receivable, Related Allowance |
1,133 |
1,282 |
|
Commercial Real Estate Construction [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
4,733 |
4,676 |
| Impaired Financing Receivable, Recorded Investment |
2,281 |
2,786 |
| Impaired Financing Receivable, Related Allowance |
470 |
548 |
|
Lease Financing [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
127 |
149 |
| Impaired Financing Receivable, Recorded Investment |
68 |
91 |
| Impaired Financing Receivable, Related Allowance |
21 |
34 |
|
Foreign Loans [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
185 |
215 |
| Impaired Financing Receivable, Recorded Investment |
31 |
15 |
| Impaired Financing Receivable, Related Allowance |
8 |
8 |
|
Total Commercial [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
19,726 |
20,669 |
| Impaired Financing Receivable, Recorded Investment |
10,566 |
11,731 |
| Impaired Financing Receivable, Related Allowance |
2,133 |
2,479 |
|
Real estate 1-4 family first mortgage [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
16,494 |
12,834 |
| Impaired Financing Receivable, Recorded Investment |
14,486 |
11,603 |
| Impaired Financing Receivable, Related Allowance |
3,380 |
2,754 |
|
Real estate 1-4 family junior lien mortgage [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
2,232 |
1,759 |
| Impaired Financing Receivable, Recorded Investment |
2,079 |
1,626 |
| Impaired Financing Receivable, Related Allowance |
784 |
578 |
|
Credit Card [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
593 |
548 |
| Impaired Financing Receivable, Recorded Investment |
593 |
548 |
| Impaired Financing Receivable, Related Allowance |
339 |
333 |
|
Other revolving credit and installment [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
287 |
231 |
| Impaired Financing Receivable, Recorded Investment |
286 |
230 |
| Impaired Financing Receivable, Related Allowance |
42 |
58 |
|
Total Consumer [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Unpaid Principal Balance |
19,606 |
15,372 |
| Impaired Financing Receivable, Recorded Investment |
17,444 |
14,007 |
| Impaired Financing Receivable, Related Allowance |
4,545 |
3,723 |
|
Impaired Financing Receivable With Related Allowances [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
26,890 |
25,338 |
|
Impaired Financing Receivable With Related Allowances [Member] | Commercial and Industrial Loans [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
3,018 |
3,276 |
|
Impaired Financing Receivable With Related Allowances [Member] | Commercial Real Estate Mortgage [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
4,637 |
5,163 |
|
Impaired Financing Receivable With Related Allowances [Member] | Commercial Real Estate Construction [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
2,281 |
2,786 |
|
Impaired Financing Receivable With Related Allowances [Member] | Lease Financing [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
68 |
91 |
|
Impaired Financing Receivable With Related Allowances [Member] | Foreign Loans [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
31 |
15 |
|
Impaired Financing Receivable With Related Allowances [Member] | Total Commercial [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
10,035 |
11,331 |
|
Impaired Financing Receivable With Related Allowances [Member] | Real estate 1-4 family first mortgage [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
13,909 |
11,603 |
|
Impaired Financing Receivable With Related Allowances [Member] | Real estate 1-4 family junior lien mortgage [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
2,079 |
1,626 |
|
Impaired Financing Receivable With Related Allowances [Member] | Credit Card [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
593 |
548 |
|
Impaired Financing Receivable With Related Allowances [Member] | Other revolving credit and installment [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
274 |
230 |
|
Impaired Financing Receivable With Related Allowances [Member] | Total Consumer [Member]
|
|
|
| Impaired Loans [Abstract] |
|
|
| Impaired Financing Receivable, Recorded Investment |
$ 16,855 |
$ 14,007 |