Summary of Restructuring Reserve Activity (Detail) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Restructuring Cost and Reserve [Line Items]
Document Period End Date	Apr. 01, 2017
Reserve, Beginning Balance	$ 35.6
Restructuring charges	15.8	$ 8.0
Usage	(12.8)
Currency	0.3
Reserve, Ending Balance	38.9
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance	21.4
Restructuring charges	11.8
Usage	(9.0)
Currency	0.3
Reserve, Ending Balance	24.5
Facility closures
Restructuring Cost and Reserve [Line Items]
Reserve, Beginning Balance	14.2
Restructuring charges	4.0
Usage	(3.8)
Currency	0.0
Reserve, Ending Balance	14.4
Series of Individually Immaterial Business Acquisitions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15.8
Severance Costs	$ 11.8