Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	$ 1,002.1	$ 1,108.5
Accumulated Amortization, amortizable intangible assets	(629.7)	(702.6)
Net Book Value, amortizable intangible assets	372.4	405.9
Gross Carrying Amount, total other intangible assets	1,034.2	1,140.6
Net Book Value, total other intangible assets	404.5	438.0
Trade Names (Indefinite-lived)
Schedule Of Other Intangible Assets [Line Items]
Net Book Value, indefinite-lived trade names	32.1	32.1
Customer Relationships
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	925.9	932.1
Accumulated Amortization, amortizable intangible assets	(580.5)	(555.3)
Net Book Value, amortizable intangible assets	345.4	376.8
Patents
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	2.0	98.3
Accumulated Amortization, amortizable intangible assets	(2.0)	(98.3)
Net Book Value, amortizable intangible assets	0.0	0.0
Trademarks, Licenses and Agreements
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	27.7	30.6
Accumulated Amortization, amortizable intangible assets	(27.2)	(29.9)
Net Book Value, amortizable intangible assets	0.5	0.7
Trade Names (Indefinite-lived)
Schedule Of Other Intangible Assets [Line Items]
Gross Carrying Amount, amortizable intangible assets	46.5	47.5
Accumulated Amortization, amortizable intangible assets	(20.0)	(19.1)
Net Book Value, amortizable intangible assets	$ 26.5	$ 28.4