Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	$ 1,023.5	$ 1,038.5
Accumulated Amortization, amortizable intangible assets	(647.7)	(641.6)
Net Book Value, amortizable intangible assets	375.8	396.9
Net Book Value, indefinite-lived trade names	26.7	26.8
Gross Carrying Amount, total other intangible assets	1,050.2	1,065.3
Net Book Value, total other intangible assets	402.5	423.7
Customer Relationships
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	850.5	865.6
Accumulated Amortization, amortizable intangible assets	(503.3)	(498.0)
Net Book Value, amortizable intangible assets	347.2	367.6
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	31.8	31.5
Accumulated Amortization, amortizable intangible assets	(29.9)	(29.7)
Net Book Value, amortizable intangible assets	1.9	1.8
Trade Names
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	42.9	43.1
Accumulated Amortization, amortizable intangible assets	(16.2)	(15.6)
Net Book Value, amortizable intangible assets	$ 26.7	$ 27.5