Segment Information (Detail) $ in Billions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2016 |
Oct. 31, 2016
USD ($)
segment
|
Oct. 31, 2015
USD ($)
|
May 31, 2016 |
|
| Segment Reporting Information | ||||
| Number of reportable segments | segment | 5 | |||
| Advance royalty proceeds received from intercompany advanced royalty payments and licensing arrangements | $ | $ 3.7 | $ 5.0 | ||
| Royalty recognition term | 5 years | |||
| Entity ownership of existing businesses percentage | 49.00% | |||
| Unisplendour | H3C | ||||
| Segment Reporting Information | ||||
| Ownership | 51.00% | |||