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External Debt and Financing Arrangements - Components of Long-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Total debt $ 2,673.5 $ 2,709.8
Less: current portion 599.2 400.0
Long-term debt 2,074.3 2,309.8
Senior Notes [Member]    
Debt Instrument [Line Items]    
Total debt 2,673.5 1,789.8
2022 Revolving Credit Agreement [Member]    
Debt Instrument [Line Items]    
Total debt 0.0 520.0
2021 Term Loan [Member]    
Debt Instrument [Line Items]    
Total debt $ 0.0 $ 400.0