DEBT LONG TERM DEBT - SENIOR UNSECURED TERM LOAN (Details) - USD ($) $ in Millions |
6 Months Ended | ||
|---|---|---|---|
Feb. 15, 2017 |
Apr. 30, 2017 |
Oct. 31, 2016 |
|
| Debt Instrument [Line Items] | |||
| Long-term Debt, Current Maturities | $ 30 | $ 0 | |
| Debt Instrument, Basis Spread on Variable Rate | 1.30% | ||
| Term Loan [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt Instrument, Issuance Date | Feb. 15, 2017 | ||
| Debt Instrument, Term | 3 years | ||
| Debt Instrument, Face Amount | $ 400 | ||
| Debt Issuance Costs, Gross | $ 1 | ||
| Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt Instrument, Description of Variable Rate Basis | LIBOR + 1.50% | ||
| Long-term Debt, Current Maturities | $ 30 | ||
| Debt Instrument, Basis Spread on Variable Rate | 1.50% | ||
| Revolving Credit Facility [Member] | |||
| Debt Instrument [Line Items] | |||
| Debt Instrument, Term | 5 years | ||
| Debt Instrument, Description of Variable Rate Basis | LIBOR + 1.30% |