Components of Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	$ 880.2	$ 888.2
Accumulated Amortization, amortizable intangible assets	(531.9)	(523.4)
Net Book Value, amortizable intangible assets	348.3	364.8
Net Book Value, indefinite-lived trade names	18.1	18.1
Gross Carrying Amount, total other intangible assets	898.3	906.3
Net Book Value, total other intangible assets	366.4	382.9
Customer Relationships
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	723.6	731.1
Accumulated Amortization, amortizable intangible assets	(395.7)	(388.0)
Net Book Value, amortizable intangible assets	327.9	343.1
Patents
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	98.3	98.3
Accumulated Amortization, amortizable intangible assets	(98.1)	(98.1)
Net Book Value, amortizable intangible assets	0.2	0.2
Other Intangible Assets
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	31.4	31.7
Accumulated Amortization, amortizable intangible assets	(26.6)	(26.1)
Net Book Value, amortizable intangible assets	4.8	5.6
Trade Names
Schedule Of Goodwill And Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	26.9	27.1
Accumulated Amortization, amortizable intangible assets	(11.5)	(11.2)
Net Book Value, amortizable intangible assets	$ 15.4	$ 15.9