Securities - U.S. GSE, Agency, and Treasury Securities (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2013
|
Dec. 31, 2012
|
---|---|---|
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities Amortized Cost | $ 323,298 | $ 353,268 |
Debt Securities, Fair Value | 319,200 | 361,120 |
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
|
||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities Amortized Cost | 134,317 | 121,522 |
Debt Securities, Fair Value | 131,689 | 123,933 |
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
|
||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities Amortized Cost | 114,509 | 124,348 |
Debt Securities, Fair Value | 113,138 | 127,541 |
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
|
||
Schedule of Held-to-maturity Securities [Line Items] | ||
Debt Securities Amortized Cost | 26,096 | 22,995 |
Debt Securities, Fair Value | $ 25,724 | $ 23,502 |
X | ||||||||||
- Definition
Debt Securities Amortized Cost No definition available.
|
X | ||||||||||
- Definition
Debt Securities, Fair Value No definition available.
|
X | ||||||||||
- Details
|