Goodwill and Other Identifiable Intangible Assets - Detail of Identifiable Intangible Assets (Detail) - Entity [Domain] - USD ($) $ in Millions	Jun. 27, 2015	Dec. 31, 2014
Acquired Intangible Assets By Major Class [Line Items]
Cost	$ 2,056.4	$ 2,031.1
Accumulated amortization	(469.0)	(423.0)
Net	1,587.4	1,608.1
Net, indefinite-life intangibles	518.7	525.6
Finite-life intangibles
Acquired Intangible Assets By Major Class [Line Items]
Cost	1,537.7	1,505.5
Accumulated amortization	(469.0)	(423.0)
Net	1,068.7	1,082.5
Finite-life intangibles | Customer relationships
Acquired Intangible Assets By Major Class [Line Items]
Cost	1,284.9	1,247.8
Accumulated amortization	(363.1)	(325.2)
Net	921.8	922.6
Finite-life intangibles | Trade names intangibles
Acquired Intangible Assets By Major Class [Line Items]
Cost	1.9	2.0
Accumulated amortization	(1.1)	(1.1)
Net	0.8	0.9
Finite-life intangibles | Proprietary technology
Acquired Intangible Assets By Major Class [Line Items]
Cost	250.9	255.7
Accumulated amortization	(104.8)	(96.7)
Net	$ 146.1	$ 159.0