LEASES - Components of Net Lease Cost (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 27.7	$ 85.6
Finance lease cost:
Amortization of leased assets	0.8	2.4
Interest on lease liabilities	0.2	0.6
Net lease cost	$ 28.7	$ 88.6