Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	$ 1,132.9	$ 1,038.5
Accumulated Amortization, amortizable intangible assets	(674.9)	(641.6)
Net Book Value, amortizable intangible assets	458.0	396.9
Net Book Value, indefinite-lived trade names	32.3	26.8
Gross Carrying Amount, total other intangible assets	1,165.2	1,065.3
Net Book Value, total other intangible assets	490.3	423.7
Customer Relationships
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	955.4	865.6
Accumulated Amortization, amortizable intangible assets	(529.3)	(498.0)
Net Book Value, amortizable intangible assets	426.1	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	31.5	31.5
Accumulated Amortization, amortizable intangible assets	(30.1)	(29.7)
Net Book Value, amortizable intangible assets	1.4	1.8
Trade Names
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	47.7	43.1
Accumulated Amortization, amortizable intangible assets	(17.2)	(15.6)
Net Book Value, amortizable intangible assets	$ 30.5	$ 27.5