STOCKHOLDERS’ EQUITY - Reclassification out of other comprehensive income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Reclassification out of Accumulated Other Comprehensive Income
Revenue	$ (1,555.8)	$ (1,632.0)
Selling, general and administrative expense	(159.6)	(147.6)
Other income (expense), net	40.8	35.6
Income (loss) before income taxes	(5.8)	456.6
Provision for income taxes	28.5	24.5
Net income (loss)	(53.7)	371.9
Amount Reclassified out of Accumulated Other Comprehensive Loss
Reclassification out of Accumulated Other Comprehensive Income
Income (loss) before income taxes	(3.5)	(7.0)
Provision for income taxes	(0.4)	(2.1)
Net income (loss)	(3.1)	(4.9)
Amount Reclassified out of Accumulated Other Comprehensive Loss | Defined Pension  and Other Post-Retirement Benefits
Reclassification out of Accumulated Other Comprehensive Income
Amortization of prior service credit (cost)	(0.1)	(0.1)
Amortization of net actuarial loss	(3.4)	(6.9)
Foreign exchange contracts | Cash Flow Hedging | Amount Reclassified out of Accumulated Other Comprehensive Loss | Hedging
Reclassification out of Accumulated Other Comprehensive Income
Revenue	4.6	10.4
Cost of sales	(0.4)	8.3
Selling, general and administrative expense	(0.1)	0.1
Other income (expense), net	(4.0)	4.0
Income (loss) before income taxes	(9.1)	2.0
Provision for income taxes	(2.7)	(0.7)
Net income (loss)	$ (6.4)	$ 2.7