SEGMENT INFORMATION Segment Assets (Details) - USD ($) $ in Millions |
Apr. 30, 2017 |
Oct. 31, 2016 |
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Assets | $ 6,014 | $ 3,796 |
| Communications Solutions Group [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 1,674 | 1,805 |
| Electronic Industrial Solutions Group [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 764 | 773 |
| Ixia Solutions Group [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 1,953 | 0 |
| Services Solutions Group [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 270 | 273 |
| Segment Total [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | $ 4,661 | $ 2,851 |