SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions		3 Months Ended
	May 31, 2019	May 03, 2020	May 05, 2019	Apr. 24, 2020	Apr. 08, 2020	Apr. 29, 2019
Nonmonetary Transaction [Line Items]
Treasury Stock, Shares Purchased Not Yet Settled			$ 2.0
Operating cash flows from operating leases		$ 81.5	116.0
Operating cash flows from finance leases			0.1
Finance Lease, Principal Payments		1.3	1.5
Right-of-use assets obtained in exchange for new operating lease liabilities		89.0	85.1
Right-of-use assets obtained in exchange for new finance lease liabilities		1.7	0.9
Debt Issuance Costs Incurred						$ 4.0
2020 Facility [Member]
Nonmonetary Transaction [Line Items]
Debt Issuance Costs Incurred					$ 0.4
Senior notes due 2024 [Member]
Nonmonetary Transaction [Line Items]
Debt Issuance Costs Incurred				$ 0.7
2016 Senior Secured Credit Facilities [Member]
Nonmonetary Transaction [Line Items]
Write off of deferred debt issuance costs			$ 1.7
Australia Acquisition [Member]
Nonmonetary Transaction [Line Items]
Redeemable Noncontrolling Interest, Equity, Common, Redemption Value		12.1
Business Ownership Percentage	100.00%
Pre-Acquisition Accounts Receivable	$ 2.2
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	$ 113.1
Australia Acquisition [Member] | 6% [Member]
Nonmonetary Transaction [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	6.00%
Fair Value, Inputs, Level 3 [Member] | Australia Acquisition [Member]
Nonmonetary Transaction [Line Items]
Redeemable Noncontrolling Interest, Equity, Common, Redemption Value	$ 26.2	29.2
Noncontrolling Interest, Change in Redemption Value		$ (3.7)