|
Loans and Allowance for Credit Losses, PCI, by Credit Quality Indicator (Details) (USD $)
In Millions, unless otherwise specified
|
Mar. 31, 2012
|
Dec. 31, 2011
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
$ 35,534 |
$ 36,719 |
|
Commercial and Industrial Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
385 |
399 |
|
Commercial Real Estate Mortgage [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
3,107 |
3,270 |
|
Commercial Real Estate Construction [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,564 |
1,745 |
|
Foreign Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,198 |
1,353 |
|
Total Commercial [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
6,254 |
6,767 |
|
Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
385 |
399 |
|
Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
3,107 |
3,270 |
|
Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,564 |
1,745 |
|
Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,198 |
1,353 |
|
Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
6,254 |
6,767 |
|
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
191 |
191 |
|
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
534 |
640 |
|
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
365 |
321 |
|
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
129 |
0 |
|
Pass [Member] | Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,219 |
1,152 |
|
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Commercial and Industrial Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
194 |
208 |
|
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Mortgage [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
2,573 |
2,630 |
|
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Commercial Real Estate Construction [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,199 |
1,424 |
|
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Foreign Loans [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
1,069 |
1,353 |
|
Criticized [Member] | Purchased Credit-Impaired Loans [Member] | Total Commercial [Member]
|
|
|
| Purchased Credit Impaired Loans by Credit Quality Indicator [Abstract] |
|
|
| Purchased Credit Impaired Loans |
$ 5,035 |
$ 5,615 |