Goodwill and Identifiable Intangible Assets - Gross Carrying Amounts and Accumulated Amortization of Identifiable Intangible Assets by Major Class (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 1,932.1	$ 1,839.5
Accumulated Amortization	(447.9)	(411.3)
Net Book Value, definite-lived	1,484.2	1,428.2
Trademarks [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Net Book Value, indefinite-lived	283.5	277.2
Technology-Based Intangible Assets [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	567.3	498.0
Accumulated Amortization	(230.9)	(213.6)
Net Book Value, definite-lived	$ 336.4	$ 284.4
Weighted average amortization periods (years)	10 years 3 months 16 days	10 years 5 months 25 days
Trademarks [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 105.3	$ 102.6
Accumulated Amortization	(19.8)	(17.7)
Net Book Value, definite-lived	$ 85.5	$ 84.9
Weighted average amortization periods (years)	15 years 9 months 20 days	15 years 10 months 30 days
Customer Relationships [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 958.8	$ 945.1
Accumulated Amortization	(193.0)	(176.8)
Net Book Value, definite-lived	$ 765.8	$ 768.3
Weighted average amortization periods (years)	19 years	19 years
Other Intangible Assets [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 17.2	$ 16.6
Accumulated Amortization	(4.2)	(3.2)
Net Book Value, definite-lived	$ 13.0	$ 13.4
Weighted average amortization periods (years)	4 years 9 months	4 years 9 months