Goodwill and Other Identifiable Intangible Assets - Detail of Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Acquired Intangible Assets By Major Class [Line Items]
Cost	$ 2,117.1	$ 2,105.3
Accumulated amortization	(434.1)	(357.9)
Net	1,683.0	1,747.4
Finite-Lived Intangible Assets, Gross	1,638.7	1,628.8
Finite-Lived Intangible Assets, Net	1,204.6	1,270.9
Net, indefinite-life intangibles	478.4	476.5
Customer relationships
Acquired Intangible Assets By Major Class [Line Items]
Accumulated amortization	(332.6)	(266.9)
Finite-Lived Intangible Assets, Gross	1,491.3	1,482.9
Finite-Lived Intangible Assets, Net	1,158.7	1,216.0
Trade names intangibles
Acquired Intangible Assets By Major Class [Line Items]
Accumulated amortization	(1.4)	(1.2)
Finite-Lived Intangible Assets, Gross	1.9	1.8
Finite-Lived Intangible Assets, Net	0.5	0.6
Patented Technology [Member]
Acquired Intangible Assets By Major Class [Line Items]
Accumulated amortization	(100.1)	(89.8)
Finite-Lived Intangible Assets, Gross	145.5	144.1
Finite-Lived Intangible Assets, Net	$ 45.4	$ 54.3