Debt - Long-term (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total long-term debt	$ 2,821.7	$ 2,816.2
Debt issuance cost	(16.1)	(17.7)
Less: debt maturing within one year	88.5	84.5
Total long-term debt, less current portion	2,733.2	2,731.7
Pollution Control and Industrial Revenue Bonds
Debt Instrument [Line Items]
Unamortized discount	0.1	0.1
Total long-term debt	49.9	49.9
Senior Notes
Debt Instrument [Line Items]
Unamortized discount	0.6	0.7
Total long-term debt	$ 1,899.4	1,899.3
2021 Term Loan Facility
Debt Instrument [Line Items]
Interest rate percentage	5.40%
Long-term debt, gross	$ 800.0	800.0
Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate percentage	7.10%
Long-term debt, gross	$ 0.0	0.0
Letters of credit outstanding, amount	160.0
Line of credit, remaining borrowing capacity	1,469.5
Foreign debt
Debt Instrument [Line Items]
Total long-term debt	$ 88.5	$ 84.7
Minimum \| Senior Notes
Debt Instrument [Line Items]
Interest rate percentage	3.20%
Minimum \| Foreign debt
Debt Instrument [Line Items]
Interest rate percentage	0.00%
Maximum \| Pollution Control and Industrial Revenue Bonds
Debt Instrument [Line Items]
Interest rate percentage	6.45%
Maximum \| Senior Notes
Debt Instrument [Line Items]
Interest rate percentage	4.50%
Maximum \| Foreign debt
Debt Instrument [Line Items]
Interest rate percentage	17.90%

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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount.

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

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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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, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

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