|
Notes Receivable (Schedule Of Allowance For Loan Losses) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
|
| Notes Receivable [Abstract] | ||||
| Allowance for loan losses, at beginning of period | $ 5 | $ 5 | $ 5 | $ 5 |
| Charge-offs | (2) | (1) | (4) | (4) |
| Recoveries | 1 | 1 | 1 | |
| Provision for loan losses | 1 | 1 | 3 | 3 |
| Allowance for loan losses, at end of period | $ 5 | $ 5 | $ 5 | $ 5 |