Goodwill and Other Identifiable Intangible Assets - Detail of Identifiable Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 28, 2015	Dec. 31, 2014
Acquired Intangible Assets By Major Class [Line Items]
Cost	$ 1,997.9	$ 2,031.1
Accumulated amortization	(438.8)	(423.0)
Net	1,559.1	1,608.1
Net, indefinite-life intangibles	517.2	525.6
Finite-life intangibles
Acquired Intangible Assets By Major Class [Line Items]
Cost	1,480.7	1,505.5
Accumulated amortization	(438.8)	(423.0)
Net	1,041.9	1,082.5
Finite-life intangibles | Customer relationships
Acquired Intangible Assets By Major Class [Line Items]
Cost	1,229.2	1,247.8
Accumulated amortization	(338.9)	(325.2)
Net	890.3	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	249.6	255.7
Accumulated amortization	(98.8)	(96.7)
Net	$ 150.8	$ 159.0