|
Litigation, Other Contingencies and Guarantees (Narrative) (Details) (USD $)
In Millions |
3 Months Ended |
|---|---|
|
Apr. 30, 2011
|
|
| Litigation, Other Contingencies and Guarantees | Â |
| Estimate Potential Environmental Liabilities Minimum | $ 35 |
| Estimate Potential Environmental Liabilities Maximum | 42 |
| Recorded Best Estimate | 36 |
| Maximum Exposure of Guarantee | 20 |
| Guarantee Program Maximum | $ 13 |