|
Business Segment Information - Consolidated Assets (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
||||
|---|---|---|---|---|---|---|
| Segment Reporting Information [Line Items] | ||||||
| Year-end total assets | $ 2,102,273 | [1] | $ 2,209,974 | [1] | ||
|
Operating Segments [Member]
|
||||||
| Segment Reporting Information [Line Items] | ||||||
| Year-end total assets | 1,935,392 | 1,947,174 | ||||
|
Asset And Liability Management Activities [Member]
|
||||||
| Segment Reporting Information [Line Items] | ||||||
| Year-end total assets | 664,302 | 655,915 | ||||
|
Equity Investment Income [Member]
|
||||||
| Segment Reporting Information [Line Items] | ||||||
| Year-end total assets | 2,411 | 5,508 | ||||
|
Liquidating Businesses and Other [Member]
|
||||||
| Segment Reporting Information [Line Items] | ||||||
| Year-end total assets | 70,435 | 138,974 | ||||
|
Intersegment Elimination [Member]
|
||||||
| Segment Reporting Information [Line Items] | ||||||
| Year-end total assets | $ (570,267) | $ (537,597) | ||||
|
||||||
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|