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DEBT - Schedule Of Long-Term Debt (Details) € in Millions, $ in Millions	Dec. 31, 2021 USD ($)	Jan. 29, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2016	Oct. 31, 2013	Jun. 30, 2012
Debt Instrument [Line Items]
Interest rate, stated percentage			3.45%	3.45%	0.875%
Unamortized debt issuance costs and discounts	$ (22.3)		$ (12.8)
Total debt	2,004.9		3,460.2
Less: current borrowings	277.6		624.7
Long-term debt	1,727.3		$ 2,835.5
5.75% 2020 Private placement notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage			5.75%	5.75%
Commercial paper
Debt Instrument [Line Items]
Long-term debt, gross	0.0		$ 1,043.7
Synthetic bonds due 2021
Debt Instrument [Line Items]
Long-term debt, gross	$ 0.0	$ 542.4	$ 551.2
Senior notes \| 3.45% Senior Notes due 2022
Debt Instrument [Line Items]
Interest rate, stated percentage	3.45%	3.45%	3.45%	3.45%
Long-term debt, gross	$ 0.0	$ 500.0	$ 500.0
Senior notes \| 6.50% Senior notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	6.50%		6.50%	6.50%
Long-term debt, gross	$ 633.1		$ 0.0
Unsecured debt \| 3.40% 2012 Private placement notes due 2022
Debt Instrument [Line Items]
Interest rate, stated percentage	3.40%		3.40%	3.40%			3.40%
Long-term debt, gross	$ 169.9		$ 184.0
Unsecured debt \| 3.15% 2013 Private placement notes due 2023
Debt Instrument [Line Items]
Interest rate, stated percentage	3.15%		3.15%	3.15%		3.15%
Long-term debt, gross	$ 288.8		$ 312.9
Unsecured debt \| 5.75% 2020 Private placement notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	5.75%		5.75%	5.75%
Long-term debt, gross	$ 226.5		$ 245.4	€ 200
Unsecured debt \| 4.00% 2012 Private placement notes due 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%		4.00%	4.00%			4.00%
Long-term debt, gross	$ 84.9		$ 92.0
Unsecured debt \| 4.00% 2012 Private placement notes due 2032
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%		4.00%	4.00%			4.00%
Long-term debt, gross	$ 113.3		$ 122.7
Unsecured debt \| 3.75% 2013 Private placement notes due 2033
Debt Instrument [Line Items]
Interest rate, stated percentage	3.75%		3.75%	3.75%		3.75%
Long-term debt, gross	$ 113.3		$ 122.7
Bank borrowings and other
Debt Instrument [Line Items]
Long-term debt, gross	$ 397.4		$ 298.4