ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ (858.5)
Other comprehensive income other than reclassifications	51.0	$ (44.5)
Reclassifications into earnings:
Amortization of net actuarial loss and prior service cost, net of tax	1.3	1.2
Total reclassifications into earnings	1.3	1.2
Ending balance	(901.0)
Amortization of net actuarial loss and prior service cost, tax	0.2	0.2
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,062.3)	(1,038.2)
Other comprehensive income other than reclassifications	50.9	(44.5)
Reclassifications into earnings:
Amortization of net actuarial loss and prior service cost, net of tax	0.0	0.0
Total reclassifications into earnings	0.0	0.0
Ending balance	(1,011.4)	(1,082.7)
Net Investment Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4.3)	(4.3)
Other comprehensive income other than reclassifications	0.0	0.0
Reclassifications into earnings:
Amortization of net actuarial loss and prior service cost, net of tax	0.0	0.0
Total reclassifications into earnings	0.0	0.0
Ending balance	(4.3)	(4.3)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	0.0
Other comprehensive income other than reclassifications	0.1
Reclassifications into earnings:
Amortization of net actuarial loss and prior service cost, net of tax	0.0
Total reclassifications into earnings	0.0
Ending balance	0.1
Pension and Postretirement Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(18.9)	(91.3)
Other comprehensive income other than reclassifications	0.0	0.0
Reclassifications into earnings:
Amortization of net actuarial loss and prior service cost, net of tax	1.3	1.2
Total reclassifications into earnings	1.3	1.2
Ending balance	(17.6)	(90.1)
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,085.5)	(1,133.8)
Reclassifications into earnings:
Ending balance	$ (1,033.2)	$ (1,177.1)