SEGMENT REPORTING - Financial Information Concerning Company's Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 636.4	$ 833.1	$ 2,019.6	$ 2,509.0
Adjusted Income from Operations	101.0	118.8	280.1	329.4
North America
Segment Reporting Information [Line Items]
Revenue	517.1	691.9	1,663.0	2,076.2
Adjusted Income from Operations	157.0	155.5	447.0	444.7
International
Segment Reporting Information [Line Items]
Revenue	119.3	141.2	356.6	432.8
Adjusted Income from Operations	15.4	20.0	32.3	53.1
Other
Segment Reporting Information [Line Items]
Adjusted Income from Operations	$ (71.4)	$ (56.7)	$ (199.2)	$ (168.4)