Fair Value Measurements, Equity Investments and Other Financial Instruments - Carrying Amounts and Estimated Fair Values of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Senior Notes due September 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	5.50%
Senior Secured Notes due October 2026
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	1.573%
Senior Notes due December 2027
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	4.00%
Senior Notes due February 2028
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	6.125%
Senior Notes due April 2029
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	5.00%
Senior Notes due February 2031
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	7.25%
Senior Notes due July 2033
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt interest rate	6.875%
Carrying Amount
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other foreign borrowings	$ 84.6	$ 94.1
Other domestic borrowings	57.1	65.9
Total debt	4,641.5	4,682.8
Carrying Amount | Senior Notes due September 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	399.3	399.1
Carrying Amount | Senior Secured Notes due October 2026
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	597.3	597.0
Carrying Amount | Senior Notes due December 2027
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	422.7	422.5
Carrying Amount | Senior Notes due February 2028
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	765.3	764.8
Carrying Amount | Senior Notes due April 2029
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	421.8	421.7
Carrying Amount | Senior Notes due February 2031
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	421.0	420.9
Carrying Amount | Senior Notes due July 2033
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	446.7	446.7
Carrying Amount | Term Loan A due March 2027
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	1,025.7	1,050.1
Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other foreign borrowings	84.6	94.1
Other domestic borrowings	57.1	65.0
Total debt	4,599.1	4,667.7
Fair Value | Senior Notes due September 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	398.6	400.7
Fair Value | Senior Secured Notes due October 2026
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	541.7	539.5
Fair Value | Senior Notes due December 2027
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	397.9	399.4
Fair Value | Senior Notes due February 2028
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	775.7	780.8
Fair Value | Senior Notes due April 2029
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	407.4	410.8
Fair Value | Senior Notes due February 2031
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	441.9	450.3
Fair Value | Senior Notes due July 2033
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	468.5	477.0
Fair Value | Term Loan A due March 2027
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Senior Notes	$ 1,025.7	$ 1,050.1