Summary of Restructuring Reserve Activity (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Restructuring Cost and Reserve [Line Items]
Document Period End Date			Jul. 02, 2016
Reserve, Beginning Balance			$ 58.7
Restructuring charges	$ 10.2	$ 5.0	18.2	$ 29.9
Usage			(45.6)
Currency			0.2
Reserve, Ending Balance	31.5		31.5
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance			44.3
Restructuring charges			9.7
Usage			(27.6)
Currency			0.3
Reserve, Ending Balance	26.7		26.7
Facility closures
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance			14.4
Restructuring charges			8.5
Usage			(18.0)
Currency			(0.1)
Reserve, Ending Balance	4.8		4.8
Series of Individually Immaterial Business Acquisitions [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges	4.2		4.3
Restructuring charges	10.2		18.2
Severance Costs	$ 6.0		$ 9.7