|
Fair Value, Measurements From Brokers or Third Party Pricing Services (Details) (USD $)
In Millions, unless otherwise specified |
Jun. 30, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Financial assets: | ||
| Loans held for sale | $ 2 | $ 6 |
|
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 |
| Financial liabilities: | ||
| Fair Value Liability derivatives | 0 | 0 |
| Other liabilities | 3 | 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) | 332 | 406 |
| Total Securities Available for Sale | 15,768 | 1,657 |
| Derivatives (trading and other assets) | 6 | 8 |
| Financial liabilities: | ||
| Fair Value Liability derivatives | 31 | 26 |
| Other liabilities | 166 | 121 |
|
Brokers [Member] | Level 2 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 15,768 | 1,654 |
|
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 | 0 |
|
Brokers [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 749 | 138 |
|
Brokers [Member] | Level 2 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 15,019 | 1,516 |
|
Brokers [Member] | Level 2 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 0 | 3 |
|
Brokers [Member] | Level 3 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 5 | 8 |
| Total Securities Available for Sale | 2,720 | 12,469 |
| Derivatives (trading and other assets) | 0 | 0 |
| Financial liabilities: | ||
| Fair Value Liability derivatives | 0 | 0 |
| Other liabilities | 0 | 0 |
|
Brokers [Member] | Level 3 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 2,720 | 12,469 |
|
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 | 1 | 4 |
|
Brokers [Member] | Level 3 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 2,719 | 12,465 |
|
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) | 1,431 | 1,314 |
| Total Securities Available for Sale | 528 | 944 |
| Derivatives (trading and other assets) | 0 | 0 |
| Financial liabilities: | ||
| Fair Value Liability derivatives | 0 | 0 |
| Other liabilities | 0 | 0 |
|
Third party pricing services [Member] | Level 1 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 520 | 915 |
|
Third party pricing services [Member] | Level 1 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 520 | 915 |
|
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 | 8 | 29 |
|
Third party pricing services [Member] | Level 2 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 1,423 | 1,016 |
| Total Securities Available for Sale | 215,412 | 192,058 |
| Derivatives (trading and other assets) | 519 | 602 |
| Financial liabilities: | ||
| Fair Value Liability derivatives | 517 | 634 |
| Other liabilities | 144 | 104 |
|
Third party pricing services [Member] | Level 2 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 214,607 | 191,284 |
|
Third party pricing services [Member] | Level 2 [Member] | US Treasury and Government [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 5,863 | 6,231 |
|
Third party pricing services [Member] | Level 2 [Member] | US States and Political Subdivisions [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 37,050 | 35,036 |
|
Third party pricing services [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 143,074 | 121,703 |
|
Third party pricing services [Member] | Level 2 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 28,620 | 28,314 |
|
Third party pricing services [Member] | Level 2 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 805 | 774 |
|
Third party pricing services [Member] | Level 3 [Member]
|
||
| Financial assets: | ||
| Trading assets (excluding derivatives) | 0 | 0 |
| Total Securities Available for Sale | 463 | 441 |
| Derivatives (trading and other assets) | 2 | 0 |
| Financial liabilities: | ||
| Fair Value Liability derivatives | 0 | 0 |
| Other liabilities | 0 | 0 |
|
Third party pricing services [Member] | Level 3 [Member] | Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 463 | 441 |
|
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 | 68 | 0 |
|
Third party pricing services [Member] | Level 3 [Member] | Mortgage Backed Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 286 | 292 |
|
Third party pricing services [Member] | Level 3 [Member] | Other Debt Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | 109 | 149 |
|
Third party pricing services [Member] | Level 3 [Member] | Equity Securities [Member]
|
||
| Financial assets: | ||
| Total Securities Available for Sale | $ 0 | $ 0 |