Goodwill and Other Identifiable Intangible Assets - Detail of Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Acquired Intangible Assets By Major Class [Line Items]
Cost	$ 3,032.7	$ 3,021.3
Accumulated amortization	(571.7)	(531.2)
Net	2,461.0	2,490.1
Finite-Lived Intangible Assets, Gross	2,337.9	2,329.8
Finite-Lived Intangible Assets, Net	1,766.2	1,798.6
Net, indefinite-life intangibles	694.8	691.5
Customer relationships
Acquired Intangible Assets By Major Class [Line Items]
Accumulated amortization	(450.4)	(415.8)
Finite-Lived Intangible Assets, Gross	2,085.5	2,078.7
Finite-Lived Intangible Assets, Net	1,635.1	1,662.9
Trade names intangibles
Acquired Intangible Assets By Major Class [Line Items]
Accumulated amortization	(1.2)	(1.2)
Finite-Lived Intangible Assets, Gross	1.8	1.8
Finite-Lived Intangible Assets, Net	0.6	0.6
Patented Technology [Member]
Acquired Intangible Assets By Major Class [Line Items]
Accumulated amortization	(120.1)	(114.2)
Finite-Lived Intangible Assets, Gross	250.6	249.3
Finite-Lived Intangible Assets, Net	$ 130.5	$ 135.1