REVENUE RECOGNITION REVENUE RECOGNITION - CONTRACT ASSET AND LIABILITY ROLLFORWARD (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Apr. 30, 2018
USD ($)
| |
| Revenue from Contract with Customer [Abstract] | |
| Current period revenue recognized from beginning balance of Contract Liabilities | $ 117.3 |
| Amount reclassified to Accounts Receivable from beginning balance of Contract Asset | 5.3 |
| Contract Assets recognized in current period | $ 27.1 |