Debt, Summary of Debt (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018		Dec. 31, 2017
Debt [Abstract]
Short-term borrowings	$ 0.0		$ 0.0
Long-term debt [Abstract]
Unamortized debt issuance costs	(3.7)		(4.9)
Total long-term debt, net, including current maturities	1,755.3		2,040.2
Current maturities of long-term debt	7.9		20.9
Total long-term debt, net	1,747.4		2,019.3
Revolving Credit Facility, Due 2020 [Member]
Long-term debt [Abstract]
Long-term debt	$ 0.0		0.0
Debt instrument maturity date	Apr. 30, 2020
Receivables Financing Agreement, Due 2020 [Member]
Long-term debt [Abstract]
Long-term debt	$ 0.0		0.0
Debt instrument maturity date	Jun. 30, 2020
Term Loan Denominated in U.S. Dollars, Due 2024 [Member]
Long-term debt [Abstract]
Long-term debt	$ 1,025.9	[1]	1,282.3
Debt instrument maturity date	Dec. 31, 2024
Interest rate	4.99%
Weighted-average interest rate	4.78%
Term Loan Denominated in Euros, Due 2024 [Member]
Long-term debt [Abstract]
Long-term debt	$ 706.7	[2]	735.9
Debt instrument maturity date	Dec. 31, 2024
Interest rate	3.00%
Weighted-average interest rate	3.00%
Capitalized Leases and Other Long-Term Debt [Member]
Long-term debt [Abstract]
Long-term debt	$ 26.4		$ 26.9

[1] As of September 30, 2018, the applicable interest rate was 4.99% and the weighted-average rate was 4.78% for the nine month period ended September 30, 2018.

[2] As of September 30, 2018, the applicable interest rate was 3.00% and the weighted-average rate was 3.00% for the nine month period ended September 30, 2018.