Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Debt [Abstract]
Short-term borrowings	$ 0.0	$ 0.0
Long-term debt:
Finance leases and other long-term debt	26.0	17.2
Unamortized debt issuance costs	(31.3)	(41.4)
Total long-term debt, net, including current maturities	3,462.3	3,899.5
Current maturities of long-term debt	40.1	40.4
Long-term debt, less current maturities	3,422.2	3,859.1
Revolving credit facility, due 2025
Long-term debt:
Long-term debt, gross	0.0	0.0
Dollar Term Loan B, Due 2027
Long-term debt:
Long-term debt, gross	1,869.7	1,883.7
Unamortized discounts	$ 1.8
Stated interest rate of debt instrument (as a percent)	1.83%
Weighted-average interest rate of debt instrument (as a percent)	1.86%
Dollar Term Loan, due 2027
Long-term debt:
Long-term debt, gross	$ 912.8	919.6
Unamortized discounts	$ 0.9
Stated interest rate of debt instrument (as a percent)	1.83%
Weighted-average interest rate of debt instrument (as a percent)	1.86%
Euro Term Loan, due 2027
Long-term debt:
Long-term debt, gross	$ 685.1	728.0
Unamortized discounts	$ 0.6
Stated interest rate of debt instrument (as a percent)	2.00%
Weighted-average interest rate of debt instrument (as a percent)	2.00%
Dollar Term Loan Series A, Due 2027
Long-term debt:
Long-term debt, gross	$ 0.0	$ 392.4
Stated interest rate of debt instrument (as a percent)	2.86%

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, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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Amount of long-term debt and lease obligation, including portion classified as current.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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