Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	$ 1,038.5	$ 885.6
Accumulated Amortization, amortizable intangible assets	(641.6)	(587.8)
Net Book Value, amortizable intangible assets	396.9	297.8
Net Book Value, indefinite-lived trade names	26.8	18.1
Gross Carrying Amount, total other intangible assets	1,065.3	903.7
Net Book Value, total other intangible assets	423.7	315.9
Customer Relationships
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	865.6	728.8
Accumulated Amortization, amortizable intangible assets	(498.0)	(448.5)
Net Book Value, amortizable intangible assets	367.6	280.3
Patents
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	98.3	98.3
Accumulated Amortization, amortizable intangible assets	(98.3)	(98.3)
Trademarks, Licenses and Agreements
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	31.5	31.4
Accumulated Amortization, amortizable intangible assets	(29.7)	(28.2)
Net Book Value, amortizable intangible assets	1.8	3.2
Trade Names
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	43.1	27.1
Accumulated Amortization, amortizable intangible assets	(15.6)	(12.8)
Net Book Value, amortizable intangible assets	$ 27.5	$ 14.3