DEBT - Schedule of long-term debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Jan. 29, 2021
Debt Instrument
Unamortized debt issuance costs and discounts	$ (20.9)	$ (22.3)
Total debt	2,005.1	2,004.9
Less: current borrowings	281.8	277.6
Long-term debt	$ 1,723.3	$ 1,727.3
Private Placement Notes \| 3.40% 2012 Private placement notes due 2022
Debt Instrument
Interest rate, stated percentage (in percent)	3.40%	3.40%
Long-term debt, gross	$ 166.5	$ 169.9
Private Placement Notes \| 3.15% 2013 Private placement notes due 2023
Debt Instrument
Interest rate, stated percentage (in percent)	3.15%	3.15%
Long-term debt, gross	$ 283.1	$ 288.8
Private Placement Notes \| 5.75% 2020 Private placement notes due 2025
Debt Instrument
Interest rate, stated percentage (in percent)	5.75%	5.75%
Long-term debt, gross	$ 222.0	$ 226.5
Private Placement Notes \| 4.00% 2012 Private placement notes due 2027
Debt Instrument
Interest rate, stated percentage (in percent)	4.00%	4.00%
Long-term debt, gross	$ 83.3	$ 84.9
Private Placement Notes \| 4.00% 2012 Private placement notes due 2032
Debt Instrument
Interest rate, stated percentage (in percent)	4.00%	4.00%
Long-term debt, gross	$ 111.0	$ 113.3
Private Placement Notes \| 3.75% 2013 Private placement notes due 2033
Debt Instrument
Interest rate, stated percentage (in percent)	3.75%	3.75%
Long-term debt, gross	$ 111.0	$ 113.3
Senior Notes \| 6.50% Senior notes due 2026
Debt Instrument
Interest rate, stated percentage (in percent)			6.50%
Long-term debt, gross	633.1	633.1
Bank borrowings and other
Debt Instrument
Long-term debt, gross	$ 416.0	$ 397.4

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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