|
Fair Value, Measurements From Independent Brokers or Independent Third Party Pricing Services (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Financial assets: | ||
| Loans held for sale | $ 796 | $ 1,176 |
|
Independent 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 |
|
Independent brokers [Member] | Level 1 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 1 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 1 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 1 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 1 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 1 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 2 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 285 | 446 |
| Total Securities Available for Sale | 733 | 3,449 |
| Derivatives (trading and other assets) | 12 | 17 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 10 | 11 |
| Other liabilities | 22 | 22 |
|
Independent brokers [Member] | Level 2 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 733 | 3,449 |
|
Independent brokers [Member] | Level 2 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 17 | 16 |
|
Independent brokers [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 369 | 2,342 |
|
Independent brokers [Member] | Level 2 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 347 | 1,091 |
|
Independent brokers [Member] | Level 2 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 3 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 7 | 7 |
| Total Securities Available for Sale | 8,514 | 8,206 |
| Derivatives (trading and other assets) | 46 | 44 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 27 | 43 |
| Other liabilities | 0 | 0 |
|
Independent brokers [Member] | Level 3 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 8,514 | 8,206 |
|
Independent brokers [Member] | Level 3 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 3 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Independent brokers [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 45 | 43 |
|
Independent brokers [Member] | Level 3 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 8,469 | 8,163 |
|
Independent brokers [Member] | Level 3 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 1,209 | 1,086 |
| Total Securities Available for Sale | 1,117 | 901 |
| Derivatives (trading and other assets) | 0 | 0 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 0 | 0 |
| Other liabilities | 0 | 6 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 1,080 | 868 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 1,080 | 868 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 1 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 37 | 33 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 1,345 | 1,564 |
| Total Securities Available for Sale | 179,616 | 171,756 |
| Derivatives (trading and other assets) | 709 | 834 |
| Loans held for sale | 1 | 1 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 681 | 850 |
| Other liabilities | 208 | 249 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 178,985 | 171,091 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 3,598 | 5,748 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 21,631 | 21,014 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 126,554 | 118,107 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 27,202 | 26,222 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 2 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 631 | 665 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 0 | 0 |
| Total Securities Available for Sale | 1,564 | 334 |
| Derivatives (trading and other assets) | 1 | 0 |
| Loans held for sale | 0 | 0 |
| Financial liabilities: | ||
| Derivatives (liabilities) | 0 | 0 |
| Other liabilities | 2 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 1,564 | 331 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 997 | 0 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 187 | 186 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 380 | 145 |
|
Fair Value Measurements From Third Party Pricing Services [Member] | Level 3 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | $ 0 | $ 3 |