|
Fair Value Disclosures (Short-term and Long-term Borrowings) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Balance Sheet Captions | ||
| Short-term and long-term borrowing, fair value | $ 44,769 | $ 41,002 |
|
Equity
|
||
| Balance Sheet Captions | ||
| Short-term and long-term borrowing, fair value | 17,326 | 13,926 |
|
Credit and Foreign Exchange Contracts
|
||
| Balance Sheet Captions | ||
| Short-term and long-term borrowing, fair value | 3,337 | 3,012 |
|
Interest Rates
|
||
| Balance Sheet Captions | ||
| Short-term and long-term borrowing, fair value | 23,330 | 23,188 |
|
Commodities
|
||
| Balance Sheet Captions | ||
| Short-term and long-term borrowing, fair value | $ 776 | $ 876 |