| **Commitments and contingencies**                       | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|---------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Commitments and Contingencies Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Commitments and contingencies                           | Commitments and ContingenciesGuaranteesWe occasionally provide guarantees that could obligate us to make future payments if the primary entity fails to perform under its contractual obligations. We have recognized liabilities for some of these guarantees in our Consolidated Balance Sheets as they meet the recognition and measurement provisions of U.S. GAAP. In addition to the liabilities that have been recognized, we are contingently liable for other potential losses under various guarantees. We do not believe that claims that may be made under such guarantees would have a material effect on our financial condition, results of operations, or cash flows.In March 2010, we entered into a three-year operating agreement (with one-year automatic extensions and subject to early termination provisions) with GE Capital Corporation and GE Capital Commercial, Inc. (collectively "GE") (the “GE Operating Agreement”). Under the terms of the agreement, GE became our preferred source of retail customer financing for equipment offered by us and our dealers in the U.S. We provide GE a loss sharing arrangement for certain credit losses. The primary features of the loss sharing arrangement include us reimbursing GE for credit losses in excess of the first 10% of the original value of a financed contract. The Company’s exposure to loss is mitigated since receivables financed under the operating agreement are secured by the financed equipment. We do not carry the receivables financed under the operating agreement on our Consolidated Balance Sheets. There were $1.0 billion and $723 million of outstanding finance receivables as of April 30, 2012 and October 31, 2011, respectively, financed through the operating agreement and subject to the loss sharing arrangement. The related originations of these outstanding finance receivables were $1.2 billion and $818 million as of April 30, 2012 and October 31, 2011, respectively.Based on our historic experience of losses on similar finance receivables and GE’s first loss position, we do not believe our share of losses related to balances currently outstanding will be material. Historically our losses, representing the entire loss amount, on similar finance receivables, measured as a percentage of the average balance of the related finance receivable, ranged from 0.3% to 2.1%. While under limited circumstances NFC retains the rights to originate retail customer financing, we expect retail finance receivables and retail finance revenues will decline as our retail portfolio pays down.For certain independent dealers’ wholesale inventory financed by third-party banks or finance companies, we provide limited repurchase agreements to the respective financing institution. The amount of losses related to these arrangements has not been material to our Consolidated Statements of Operations or Cash Flows and the value of the guarantees and accruals recorded are not material to our Consolidated Balance Sheets.We also have issued limited residual value guarantees in connection with various leases primarily financed by our financial services operations. The amounts of the guarantees are estimated and recorded as liabilities as of April 30, 2012. Our guarantees are contingent upon the fair value of the leased assets at the end of the lease term. The amount of losses related to these arrangements has not been material to our Consolidated Statements of Operations or Cash Flows and the value of the guarantees and accruals recorded are not material to our Consolidated Balance Sheets.We obtain certain stand-by letters of credit and surety bonds from third-party financial institutions in the ordinary course of business when required under contracts or to satisfy insurance-related requirements. The amount of available stand-by letters of credit and surety bonds was $98 million at April 30, 2012.We extend credit commitments to certain truck fleet customers, which allow them to purchase parts and services from participating dealers. The participating dealers receive accelerated payments from us with the result that we carry the receivables and absorb the credit risk related to these customers. At April 30, 2012, we have $33 million of unused credit commitments outstanding under this program.In addition, as of April 30, 2012, we have entered into various purchase commitments of $127 million and contracts that have cancellation fees of $30 million with various expiration dates through 2017.In the ordinary course of business, we also provide routine indemnifications and other guarantees, the terms of which range in duration and often are not explicitly defined. We do not believe these will result in claims that would have a material impact on our financial condition, results of operations, or cash flows.The terms of the Ford/Navistar Settlement Agreement of January 9, 2009 require us to indemnify Ford with respect to intellectual property infringement claims, if any, that are brought against Ford or others that use the 6.0 liter or 6.4 liter engines on behalf of Ford. The maximum amount of future payments that we could potentially be required to pay under the indemnification would depend on the magnitude of potential infringement claims and the associated damages and cannot currently be determined. For more information, see 6.0 Liter Diesel Engine Litigation, below.Environmental LiabilitiesWe have been named a potentially responsible party ("PRP"), in conjunction with other parties, in a number of cases arising under an environmental protection law, the Comprehensive Environmental Response, Compensation, and Liability Act, popularly known as the "Superfund" law. These cases involve sites that allegedly received wastes from current or former Company locations. Based on information available to us which, in most cases, consists of data related to quantities and characteristics of material generated at current or former Company locations, material allegedly shipped by us to these disposal sites, as well as cost estimates from PRPs and/or federal or state regulatory agencies for the cleanup of these sites, a reasonable estimate is calculated of our share, if any, of the probable costs and accruals are recorded in our consolidated financial statements. These accruals are generally recognized no later than completion of the remedial feasibility study and are not discounted to their present value. We review all accruals on a regular basis and believe that, based on these calculations, our share of the potential additional costs for the cleanup of each site will not have a material effect on our financial condition, results of operations, or cash flows.Three sites formerly owned by us, (i) Solar Turbines in San Diego, California, (ii) the Canton Plant in Canton, Illinois, and (iii) Wisconsin Steel in Chicago, Illinois, were identified as having soil and groundwater contamination. Two sites in Sao Paulo, Brazil, where we are currently operating, were identified as having soil and groundwater contamination. While investigations and cleanup activities continue at these and other sites, we believe that we have adequate accruals to cover costs to complete the cleanup of all sites.We have accrued $20 million for these and other environmental matters, which are included within Other current liabilities and Other noncurrent liabilities, as of April 30, 2012. The majority of these accrued liabilities are expected to be paid subsequent to 2013.Along with other vehicle manufacturers, we have been subject to an increased number of asbestos-related claims in recent years. In general, these claims relate to illnesses alleged to have resulted from asbestos exposure from component parts found in older vehicles, although some cases relate to the alleged presence of asbestos in our facilities. In these claims, we are not the sole defendant, and the claims name as defendants numerous manufacturers and suppliers of a wide variety of products allegedly containing asbestos. We have strongly disputed these claims, and it has been our policy to defend against them vigorously. Historically, the actual damages paid out to claimants have not been material in any year to our financial condition, results of operations, or cash flows. It is possible that the number of these claims will continue to grow, and that the costs for resolving asbestos related claims could become significant in the future.Legal ProceedingsOverviewWe are subject to various claims arising in the ordinary course of business, and are party to various legal proceedings that constitute ordinary, routine litigation incidental to our business. The majority of these claims and proceedings relate to commercial, product liability, and warranty matters. In addition, from time to time we are subject to various claims and legal proceedings related to employee compensation, benefits, and benefits administration including, but not limited to, compliance with the Employee Retirement Income Security Act of 1974, as amended, and Department of Labor requirements. In our opinion, apart from the actions set forth below, the disposition of these proceedings and claims, after taking into account recorded accruals and the availability and limits of our insurance coverage, will not have a material adverse effect on our business or our financial condition, results of operations, or cash flows.Retiree Health Care LitigationIn April 2010, the United Auto Workers ("UAW") and others ("Plaintiffs") filed a "Motion of Plaintiffs Art Shy, UAW, et al for an Injunction to Compel Compliance with the 1993 Settlement Agreement" (the "Shy Motion") in the U.S. District Court for the Southern District of Ohio (the "Court"). The Shy Motion sought to enjoin the Company from implementing an administrative change relating to prescription drug benefits under a healthcare plan for Medicare-eligible retirees (the "Part D Change"). Specifically, Plaintiffs claimed that the Part D Change violated the terms of the 1993 Settlement Agreement previously approved by the Court. That 1993 Settlement Agreement resolved a class action originally filed in 1992 regarding the restructuring of the Company's then applicable retiree health care and life insurance benefits. In May 2010, the Company filed its Opposition to the Shy Motion.The Part D Change was effective July 1, 2010, and made the Company's prescription drug coverage for post-65 retirees ("Plan 2 Retirees") supplemental to the coverage provided by Medicare. Plan 2 retirees paid the premiums for Medicare Part D drug coverage under the Part D Change.In February 2011, the Court ruled on the Shy Motion (the "February 2011 Order"). The February 2011 Order sustained the Plaintiffs' argument that the Company did not have authority to unilaterally substitute Medicare Part D for the prescription drug benefit that Plaintiffs had been receiving under the 1993 Settlement Agreement. However, the February 2011 Order denied as moot Plaintiffs' request for injunctive relief to prevent the Company from implementing the Part D Change, because the change already had gone into effect. In February 2011, the Company filed a notice of appeal with the United States Court of Appeals for the Sixth Circuit (the "Appellate Court") concerning the February 2011 Order.On September 30, 2011, the Court issued an order directing the Company to reinstate the prescription drug benefit that was in effect before the Company unilaterally substituted Medicare Part D for the prior prescription drug benefit (the "September 2011 Order"). The September 2011 Order also requires the Company to reimburse Plan 2 Retirees for any Medicare Part D premiums they have paid since the Part D Change and the extra cost, if any, for the retirees' prescriptions under the Part D Change. On October 14, 2011, the Company filed a notice of appeal with the Appellate Court concerning the September 2011 Order. The Appellate Court consolidated the Company's appeal of the February 2011 Order and the September 2011 Order, and the scheduled briefing was completed in May 2012. Pending the appeal, Plan 2 Retirees do not pay premiums for Medicare Part D drug coverage and the prescription drug formulary available to such retirees reflects the prescription drug benefit in effect prior to the implementation of the Part D Change.FATMA NoticeInternational Indústria de Motores da América do Sul Ltda. ("IIAA"), formerly known as Maxion International Motores S/A ("Maxion"), now a wholly owned subsidiary of the Company, received a notice in July 2010 from the State of Santa Catarina Environmental Protection Agency ("FATMA") in Brazil. The notice alleged that Maxion had sent wastes to a facility owned and operated by a company known as Natureza and that soil and groundwater contamination had occurred at the Natureza facility. The notice asserted liability against Maxion and assessed an initial penalty in the amount of R$2 million (the equivalent of approximately US$1 million at April 30, 2012), which is not due and final until all administrative appeals are exhausted. Maxion was one of numerous companies that received similar notices. IIAA filed an administrative defense in August 2010 and has not yet received a decision following that appearance. IIAA disputes the allegations in the notice and intends to vigorously defend itself.6.0 Liter Diesel Engine LitigationOn May 20, 2011, 9046-9478 Quebec Inc. ("Quebec Inc.") filed a motion to authorize the bringing of a class action against the Company, as well as Ford and Ford Motor Company of Canada, Limited (collectively, "Ford Defendants") in Superior Court (the "Superior Court") in Quebec, Canada (the "Quebec Action"). The Quebec Action seeks authorization to bring a claim on behalf of a class of Canadian owners and lessees of model year 2003-07 Ford vehicles powered by the 6.0L Power Stroke® engine that the Company previously supplied to Ford. Quebec Inc. alleged that the engines in question have design and manufacturing defects, and that the Company and Ford Defendants are solidarily liable for those defects. For relief, the Quebec Action seeks monetary damages sufficient to remedy the alleged defects, compensate the alleged damages incurred by the proposed class, and compensate plaintiffs' counsel. The Quebec Action also asks the Superior Court to order the Company and the Ford Defendants to recall, repair, or replace the Ford vehicles at issue free of charge. In December 2011, the Company and Quebec Inc. reached an agreement in principle whereby the Company voluntarily would produce certain documents to Quebec Inc. pursuant to a protective order and Quebec Inc. voluntarily would dismiss the Company from the Quebec Action without prejudice. That agreement was confirmed on the record at a case management conference before the Superior Court on February 1, 2012. Quebec Inc. has agreed to file a motion for authorization to remove the Company from the Quebec Action, and the Superior Court has stated such motion will be heard in June 2012.We also have been made aware of the Kruse Technology Partnership ("Kruse") vs. Ford lawsuit (the "Kruse Case") filed against Ford regarding a potential patent infringement of three patents in the U.S. District Court for the Central District of California. An amended complaint against Ford was filed by Kruse in August 2010. The amended complaint alleges that Ford has infringed the patents by sale or use of engines, such as the Power Stroke diesel engines. The general subject matter of the patents is pilot injection of fuel in the combustion cycle. Navistar formerly supplied Power Stroke diesel engines to Ford, although today Ford manufactures its own Power Stroke engines. In the Ford/Navistar Settlement Agreement of January 9, 2009, Navistar agreed to indemnify Ford for claims of infringement based upon Ford's manufacture, sale, or use of the 6.0 and 6.4 liter Power Stroke engines sold by Navistar to Ford. Ford has not requested Navistar to defend Ford at this time. The judge assigned to the Kruse Case has stayed the case pending resolution of a similar suit against Daimler Chrysler, Detroit Diesel, Freightliner, Western Star, Volkswagen, Cummins, and Chrysler Group. In November 2011, Kruse disclaimed all the claims in one of the patents (U.S. Patent 6,405,704), which effectively terminates the patent rights for this patent. The U.S. Patent Office ended the first re-examinations on the two remaining patents, and ruled that these will be in force with all claims intact. The U.S. Patent Office agreed to commence a new re-examination of U.S. Patent 6,058,904 in April 2012 and U.S. Patent 5,265,562 in May 2012 as a result of third party requests based upon substantial new questions of patentability.Based on our assessment of the facts underlying the claims in the above action, we are unable to provide meaningful quantification of how the final resolution of these claims may impact our future consolidated financial condition, results of operations, or cash flows.Lis Franco de Toledo, et. al. vs. Syntex do Brasil and IIAAIn 1973, Syntex do Brasil Industria e Comercio Ltda. ("Syntex"), a predecessor of IIAA, our Brazilian engine manufacturing subsidiary formerly known as MWM International Industria de Motores da America do Sul Ltda ("MWM"), filed a lawsuit in Brazilian court against Dr. Lis Franco de Toledo and others (collectively, "Lis Franco"). Syntex claimed Lis Franco had improperly terminated a contract which provided for the transfer from Lis Franco to Syntex of a patent for the production of a certain vaccine. Lis Franco filed a counterclaim, alleging that he was entitled to royalties under the contract. In 1975, the Brazilian court ruled in favor of Lis Franco, a decision which was affirmed on appeal in 1976. In 1984, while the case was still pending, Syntex’ owner, Syntex Comercio e Participacoes Ltds ("Syntex Parent") sold the stock of Syntex to MWM, and in connection with that sale Syntex Parent agreed to indemnify and hold harmless MWM for any and all liabilities of Syntex, including its prior pharmaceutical operations (which had been previously spun-off to another subsidiary wholly-owned by the Syntex Parent) and any payments that might be payable under the Lis Franco lawsuit. In the mid to late 1990s, Syntex Parent was merged with an entity known as Wyeth Industria Farmaceutica LTDA ("Wyeth").In 1999, Lis Franco amended its pleadings to add MWM to the lawsuit as a defendant. In 2000, Wyeth acknowledged to the Brazilian court its sole responsibility for amounts due in the Lis Franco lawsuit and MWM asked the court to be dismissed from that action. The judge denied that request. MWM appealed and lost.In his pleadings, Lis Franco alleged that the royalties payable to him were approximately R$42 million. MWM believed the appropriate amount payable was approximately R$16 million. In December 2009, the court appointed expert responsible for the preparation of the royalty calculation filed a report with the court indicating royalty damages of approximately R$70 million. MWM challenged the expert’s calculation. In August 2010, the court asked the parties to consider the appointment of a new expert. MWM agreed with this request but Lis Franco objected and, in September 2010, the court accepted and ratified the expert’s calculation as of May 2010 in the amount of R$74 million (the equivalent of approximately US$39 million at April 30, 2012) and entered judgment against MWM. In May 2010, MWM filed a lawsuit against Wyeth seeking recognition that Wyeth is liable for any and all liabilities, costs, expenses, and payments related to the Lis Franco lawsuit.In September 2010, MWM filed a motion for clarification of the decision which would suspend its enforcement. The Brazilian court denied this motion and MWM appealed the matter to the Rio de Janeiro State Court of Appeals (the "Court of Appeals"). In January 2011, the Court of Appeals granted the appeal and issued an injunction suspending the lower Court’s decision and judgment in favor of Lis Franco. In January 2011, MWM merged into IIAA and is now known as IIAA. An expert appointed by the Court of Appeals submitted his calculation report on October 24, 2011, and determined the amount to be R$11 million (the equivalent of approximately US$6 million at April 30, 2012). The parties submitted their comments to such report in December 2011. The Court of Appeals is now reviewing the expert’s calculation criteria report and the parties' comments to that report.Deloitte & Touche LLPIn April 2011, the Company filed a complaint against Deloitte and Touche LLP ("Deloitte") in the Circuit Court of Cook County, Illinois County Department, Law Division ("Illinois Circuit Court") for fraud, fraudulent concealment, negligent misrepresentation, violation of the Illinois Consumer Fraud and Deceptive Business Practices Act, professional malpractice, negligence, breach of contract, and breach of fiduciary duty. The matters giving rise to the allegations contained in the complaint arise from Deloitte's service as the Company's independent auditor prior to April 2006 and the Company is seeking monetary damages against Deloitte. In May 2011, Deloitte filed a Notice of Removal to remove the case to the United States District Court for the Northern District of Illinois. In June 2011, the Company filed in the federal court a motion to remand the case to Illinois Circuit Court. In July 2011, Deloitte filed a motion to dismiss the Company's complaint and in August 2011, the Company responded to Deloitte's motion to dismiss. In October 2011, the court remanded the case back to the Illinois Circuit Court and denied the motion to dismiss as moot. The Company amended its complaint in January 2012 in Illinois Circuit Court. In February 2012, Deloitte moved to dismiss the Company's amended complaint. The motion was fully briefed, and oral argument was held in May 2012. The parties are currently awaiting the Court's ruling.Westbrook vs. Navistar. et. al.In April 2011, a False Claims Act qui tam complaint against Navistar, Inc., Navistar Defense, LLC, a wholly owned subsidiary of the Company ("Navistar Defense"), and unrelated third parties was unsealed by the United States District Court for the Northern District of Texas. The complaint was initially filed under seal in August 2010 by a qui tam relator on behalf of the federal government. The complaint alleged violations of the False Claims Act based on allegations that parts of vehicles delivered by Navistar Defense were not painted according to the contract specification, and improper activities in dealing with one of the vendors who painted certain of the vehicle parts. The complaint seeks monetary damages and civil penalties on behalf of the federal government, as well as costs and expenses. The U.S. government notified the Court that it has declined to intervene at this time. Navistar, Inc. was served with the complaint in July 2011, and a scheduling order and a revised scheduling order have been entered by the Court. In December 2011, the Court granted a motion by Navistar, Inc. and Navistar Defense, along with the other named defendants to judicially estop the relator and his affiliated company from participating in any recovery from the action, and to substitute his bankruptcy trustee as the only person with standing to pursue the relator's claims. In March 2012, the Court granted motions by Navistar, Inc., Navistar Defense, and the other named defendants to dismiss the complaint. The dismissal was without prejudice and the relator filed an amended complaint in April 2012. In May 2012, Navistar, Inc., Navistar Defense, and the other named defendants filed motions to dismiss the amended complaint. In addition, the parties jointly filed a motion to stay discovery pending resolution of the motions to dismiss.Based on our assessment of the facts underlying the claims in the above action, we are unable to provide meaningful quantification of how the final resolution of these claims may impact our future consolidated financial condition, results of operations, or cash flows.EPA Notice of ViolationIn February 2012, Navistar, Inc. received a Notice of Violation ("NOV") from the EPA. The NOV pertains to approximately 7,600 diesel engines which, according to EPA, were produced by Navistar, Inc. in 2010 and, therefore, should have met EPA's 2010 emissions standards. Navistar, Inc. previously provided information to EPA showing that the engines were in fact produced in 2009. The NOV contains EPA's conclusion that Navistar, Inc.'s alleged production of the engines in 2010 violated the federal Clean Air Act. The NOV states that EPA reserves the right to file an administrative complaint or to refer this matter to the U.S. Department of Justice with a recommendation that a civil complaint be filed in federal district court. Based on our assessment of the facts underlying the NOV above, we are unable to provide meaningful quantification of how the final resolution of this matter may impact our future consolidated financial condition, results of operations or cash flows.OtherIn order to meet the current on-highway heavy-duty diesel (“HDD”) emission standards, HDD engines must be certified by the EPA for compliance with the 0.20g oxides of nitrogen (“NOx”) standard, which also includes standards for on-board diagnostics. Advanced Exhaust Gas Recirculation (“EGR”), combined with other strategies, is our solution to meet the 0.20g NOx standard. Our approach with EGR has dramatically reduced our NOx emissions compared to the previous NOx standard and we believe it is an environmentally friendly approach compared to the liquid-based urea Selective Catalytic Reduction (“SCR”) systems used by our competitors. However, we have not yet been able to obtain 0.20g certification for any of our HDD engines. Currently, we are able to sell our trucks which incorporate HDD engines and sell our engines by using emission credits or paying non-conformance penalties (“NCPs”). Both emission credits and NCPs are described below.We were able to generate a “bank” of NOx emission credits by producing low-NOx engines earlier than was required by the EPA. Companies are allowed to use such credits to offset exceedances of the 0.20g NOx standard, and we have been doing so for HDD engines since model year 2010. Under current conditions and at the current pace, we estimate that we will fully consume these credits for heavy HDD engines during 2012 and for medium HDD engines during 2013. The pace at which we consume these credits is subject to material change based on a variety of factors, including sales, product mix, improvements in technology, our use of NCPs, the willingness of our customers to buy trucks we sell using NCPs, and our ability to certify engine families at the 0.20g NOx standard.In certain circumstances, the Clean Air Act requires the EPA to promulgate NCPs. When NCPs are available, companies are permitted to certify engines that do not meet the current NOx standard by paying a penalty for each engine sold. In January 2012, the EPA promulgated an Interim Final Rule establishing NCPs for heavy HDD engines. These NCPs allow us to sell engines emitting up to 0.50g NOx subject to a penalty of up to $1,919 per engine. Our 11L, 13L, and 15L engines all have certificates from the EPA that incorporate these NCPs; however, some of our competitors filed petitions in the Court of Appeals for the D.C. Circuit (the “D.C. Circuit”) challenging the Interim Final Rule. We intervened in support of the Interim Final Rule, the matter has been fully briefed, and oral argument was held on May 14, 2012. Some of our competitors also filed a separate petition in the D.C. Circuit challenging our certificates incorporating NCPs from the EPA. This petition has been held in abeyance pending a decision on the Interim Final Rule. The D.C. Circuit has not yet ruled on the Interim Final Rule; however, in the event of an adverse ruling from the D.C. Circuit on the Interim Final Rule or the challenge to our certificates, our ability to continue selling heavy HDD engines or our trucks that incorporate such engines could be materially and adversely affected.Also in January 2012, the EPA published a Notice of Proposed Rulemaking for a final NCP rule (the “Final Rule”). The Final Rule would make NCPs available to manufacturers of heavy HDD engines and medium HDD engines in model years 2012 and later for emissions of NOx and would supersede the Interim Final Rule. We cannot provide assurance that the Final Rule will be promulgated in the form currently proposed or when it will be promulgated.In the three months ended April 30, 2012, the Company recorded charges totaling $10 million for NCPs for certain 13L engine sales that did not comply with emission standards, recognized in the Engine segment.Currently, the California Air Resources Board (“CARB”) and the corresponding agencies of nine other states that have adopted California's 0.20g NOx emission standards do not make available engine certification using NCPs. Therefore, we continue to sell engines and trucks in these ten states using the NOx emission credits previously described. Under current conditions and at the current pace, however, our emission credits for heavy HDD engines will be consumed this year. Unless CARB (and the corresponding agencies of the nine other states) begin allowing NCPs for engine sales, or unless CARB certifies our HDD engines to the 0.20g NOx standard, we will no longer be able to sell trucks with HDD engines in these ten states after our credits are consumed.We submitted to the EPA an application for a 0.20g NOx engine certificate for one 13L engine family on January 31, 2012 and we submitted a similar application to CARB on February 17, 2012, but later withdrew both applications. In response to certain concerns raised by the EPA, on May 21, 2012, we submitted a revised application to the EPA and plan to submit a revised application to CARB. Certain issues raised by the revised application are under review by the EPA, and we are engaged in ongoing discussions relating to certification of this engine family at 0.20g NOx. |

| X                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_CommitmentsAndContingenciesDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The entire disclosure for commitments and contingencies.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621
+ Details**Name:**us-gaap_CommitmentsAndContingenciesDisclosureTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |