|
Short-Term Debt and Credit Facilities (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Lines of credit: | ||
| Short-term borrowings weighted-average interest rate (as a percent) | 2.53% | 12.54% |
| Total short-term debt | $ 1,718 | $ 166 |
| Unsecured short-term line of credit percentage rate, low end of range (as a percent) | 1.27% | |
| Unsecured short-term line of credit percentage rate, high end of range (as a percent) | 18.70% | |
| Liquidity facility maximum borrowing | 575 | |
| Unused borrowing capacity under commercial paper and committed short-term credit facilities | 575 | |
|
Secured short-term line of credit
|
||
| Lines of credit: | ||
| Total short-term debt | 15 | |
|
Unsecured short-term line of credit
|
||
| Lines of credit: | ||
| Total short-term debt | 1,703 | 166 |
|
Commercial paper program - uncommitted
|
||
| Lines of credit: | ||
| Commercial paper outstanding amount | 1,075 | |
|
Local bank lines of credit
|
||
| Lines of credit: | ||
| Total short-term debt | $ 643 |