|
Aging Analysis of Finance Receivables (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Financing Receivable, Recorded Investment, Past Due [Line Items] | ||
| 30-59 Days Past Due | $ 1 | |
| 60-90 Days Past Due | 5 | |
| Greater than 90 Days Past Due | 46 | |
| Current | 299 | |
| Total Finance Receivables | 351 | 511 |
|
Commercial term loans, U.S. Government guaranteed
|
||
| Financing Receivable, Recorded Investment, Past Due [Line Items] | ||
| 30-59 Days Past Due | 1 | |
| Greater than 90 Days Past Due | 30 | |
| Current | 31 | |
| Total Finance Receivables | 62 | |
|
Commercial term loans, Other unguaranteed
|
||
| Financing Receivable, Recorded Investment, Past Due [Line Items] | ||
| 60-90 Days Past Due | 5 | |
| Greater than 90 Days Past Due | 15 | |
| Current | 115 | |
| Total Finance Receivables | 135 | |
|
Commercial term loans, Other financing receivables
|
||
| Financing Receivable, Recorded Investment, Past Due [Line Items] | ||
| Greater than 90 Days Past Due | 1 | |
| Current | 153 | |
| Total Finance Receivables | $ 154 |