|
Fair Value, Measurements From Brokers or Third Party Pricing Services (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Financial assets: | ||
| Loans held for sale | $ 6 | $ 1,176 |
|
Brokers [Member] | Level 1 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 0 | 0 |
| Total Securities Available for Sale | 0 | 0 |
| Derivatives (trading and other assets) | 0 | 0 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 0 | 0 |
| Other liabilities | 0 | 0 |
|
Brokers [Member] | Level 1 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 1 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 1 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 1 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 1 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 1 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 2 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 406 | 446 |
| Total Securities Available for Sale | 1,657 | 3,449 |
| Derivatives (trading and other assets) | 8 | 17 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 26 | 11 |
| Other liabilities | 121 | 22 |
|
Brokers [Member] | Level 2 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 1,654 | 3,449 |
|
Brokers [Member] | Level 2 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 16 |
|
Brokers [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 138 | 2,342 |
|
Brokers [Member] | Level 2 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 1,516 | 1,091 |
|
Brokers [Member] | Level 2 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 3 | 0 |
|
Brokers [Member] | Level 3 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 8 | 7 |
| Total Securities Available for Sale | 12,469 | 8,206 |
| Derivatives (trading and other assets) | 0 | 44 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 0 | 43 |
| Other liabilities | 0 | 0 |
|
Brokers [Member] | Level 3 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 12,469 | 8,206 |
|
Brokers [Member] | Level 3 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 3 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Brokers [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 4 | 43 |
|
Brokers [Member] | Level 3 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 12,465 | 8,163 |
|
Brokers [Member] | Level 3 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Third party pricing services [Member] | Level 1 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 1,314 | 1,086 |
| Total Securities Available for Sale | 944 | 901 |
| Derivatives (trading and other assets) | 0 | 0 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 0 | 0 |
| Other liabilities | 0 | 6 |
|
Third party pricing services [Member] | Level 1 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 915 | 868 |
|
Third party pricing services [Member] | Level 1 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 915 | 868 |
|
Third party pricing services [Member] | Level 1 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Third party pricing services [Member] | Level 1 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Third party pricing services [Member] | Level 1 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Third party pricing services [Member] | Level 1 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 29 | 33 |
|
Third party pricing services [Member] | Level 2 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 1,016 | 1,564 |
| Total Securities Available for Sale | 192,058 | 171,756 |
| Derivatives (trading and other assets) | 602 | 834 |
| Loans held for sale | 0 | 1 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 634 | 850 |
| Other liabilities | 104 | 249 |
|
Third party pricing services [Member] | Level 2 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 191,284 | 171,091 |
|
Third party pricing services [Member] | Level 2 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 6,231 | 5,748 |
|
Third party pricing services [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 35,036 | 21,014 |
|
Third party pricing services [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 121,703 | 118,107 |
|
Third party pricing services [Member] | Level 2 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 28,314 | 26,222 |
|
Third party pricing services [Member] | Level 2 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 774 | 665 |
|
Third party pricing services [Member] | Level 3 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 0 | 0 |
| Total Securities Available for Sale | 441 | 334 |
| Derivatives (trading and other assets) | 0 | 0 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 0 | 0 |
| Other liabilities | 0 | 0 |
|
Third party pricing services [Member] | Level 3 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 441 | 331 |
|
Third party pricing services [Member] | Level 3 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Third party pricing services [Member] | Level 3 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Third party pricing services [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 292 | 186 |
|
Third party pricing services [Member] | Level 3 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 149 | 145 |
|
Third party pricing services [Member] | Level 3 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | $ 0 | $ 3 |