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Fair Value Measurements and Other Financial Instruments - Carrying Amounts and Estimated Fair Values of Debt (Details) - USD ($) $ in Millions | Sep. 30, 2017 | Dec. 31, 2016
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6.50% Senior Notes due December 2020 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Debt interest rate | 6.50% |
4.875% Senior Notes due December 2022 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Debt interest rate | 4.875% |
5.25% Senior Notes due April 2023 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Debt interest rate | 5.25% |
4.50% Senior Notes due September 2023 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Debt interest rate | 4.50% |
5.125% Senior Notes due December 2024 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Debt interest rate | 5.125% |
5.50% Senior Notes due September 2025 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Debt interest rate | 5.50% |
6.875% 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 loans | $ 44.2 | $ 78.9
Other domestic loans | 44.7 | 21.4
Total debt | 3,305.4 | 4,359.0
Carrying Amount | Less amounts included as liabilities held for sale |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Total debt | 0.0 | 216.4
Carrying Amount | Total debt from continuing operations |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Total debt | 3,305.4 | 4,142.6
Carrying Amount | 6.50% Senior Notes due December 2020 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 423.4 | 423.1
Carrying Amount | 4.875% Senior Notes due December 2022 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 420.2 | 419.6
Carrying Amount | 5.25% Senior Notes due April 2023 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 420.2 | 419.7
Carrying Amount | 4.50% Senior Notes due September 2023 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 467.9 | 416.7
Carrying Amount | 5.125% Senior Notes due December 2024 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 420.6 | 420.2
Carrying Amount | 5.50% Senior Notes due September 2025 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 396.6 | 396.4
Carrying Amount | 6.875% Senior Notes due July 2033 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 445.4 | 445.3
Carrying Amount | Term Loan A Facility due July 2017 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Term Loan A Facility | 0.0 | 249.9
Carrying Amount | Term Loan A Facility due July 2019 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Term Loan A Facility | 222.2 | 1,067.8
Fair Value |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Other foreign loans | 44.8 | 79.2
Other domestic loans | 44.7 | 21.3
Total debt | 3,648.6 | 4,546.4
Fair Value | Less amounts included as liabilities held for sale |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Total debt | 0.0 | 216.4
Fair Value | Total debt from continuing operations |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Total debt | 3,648.6 | 4,330.0
Fair Value | 6.50% Senior Notes due December 2020 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 473.1 | 477.3
Fair Value | 4.875% Senior Notes due December 2022 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 452.1 | 437.6
Fair Value | 5.25% Senior Notes due April 2023 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 456.9 | 441.1
Fair Value | 4.50% Senior Notes due September 2023 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 534.2 | 453.4
Fair Value | 5.125% Senior Notes due December 2024 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 456.3 | 437.3
Fair Value | 5.50% Senior Notes due September 2025 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 438.6 | 418.8
Fair Value | 6.875% Senior Notes due July 2033 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Senior Notes | 525.7 | 462.7
Fair Value | Term Loan A Facility due July 2017 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Term Loan A Facility | 0.0 | 249.9
Fair Value | Term Loan A Facility due July 2019 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Term Loan A Facility | $ 222.2 | $ 1,067.8

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