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Fair Value Measurements, Equity Investments and Other Financial Instruments - Carrying Amounts and Estimated Fair Values of Debt (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Sep. 29, 2021 | Dec. 31, 2020
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Senior Notes due December 2022 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Debt interest rate | 4.875% |  |
Senior Notes due April 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Debt interest rate | 5.25% |  |
Senior Notes due September 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Debt interest rate | 4.50% |  |
Senior Notes due December 2024 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Debt interest rate | 5.125% |  |
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% | 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 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 | $ 6.5 |  | $ 8.8
Total debt | 3,772.7 |  | 3,726.7
Carrying Amount | Senior Notes due December 2022 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 85.5 |  | 423.3
Carrying Amount | Senior Notes due April 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 423.6 |  | 422.9
Carrying Amount | Senior Notes due September 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 462.6 |  | 490.2
Carrying Amount | Senior Notes due December 2024 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 422.6 |  | 422.1
Carrying Amount | Senior Notes due September 2025 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 398.1 |  | 397.8
Carrying Amount | Senior Secured Notes due October 2026 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 594.6 |  | 0.0
Carrying Amount | Senior Notes due December 2027 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 421.3 |  | 420.9
Carrying Amount | Senior Notes due July 2033 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 446.2 |  | 446.0
Carrying Amount | Term Loan A due August 2022 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Term Loan A Facility | 474.8 |  | 474.7
Carrying Amount | Term Loan A due July 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Term Loan A Facility | 36.9 |  | 220.0
Fair Value |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Other foreign borrowings | 6.6 |  | 9.1
Total debt | 4,090.6 |  | 4,099.6
Fair Value | Senior Notes due December 2022 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 88.8 |  | 446.0
Fair Value | Senior Notes due April 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 444.0 |  | 450.8
Fair Value | Senior Notes due September 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 497.1 |  | 537.5
Fair Value | Senior Notes due December 2024 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 461.7 |  | 466.8
Fair Value | Senior Notes due September 2025 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 446.0 |  | 446.7
Fair Value | Senior Secured Notes due October 2026 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 596.8 |  | 0.0
Fair Value | Senior Notes due December 2027 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 452.6 |  | 453.6
Fair Value | Senior Notes due July 2033 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Senior Notes | 585.3 |  | 594.4
Fair Value | Term Loan A due August 2022 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Term Loan A Facility | 474.8 |  | 474.7
Fair Value | Term Loan A due July 2023 |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Term Loan A Facility | $ 36.9 |  | $ 220.0

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