Restructuring - Restructuring Related Costs Included in Selling, General & Administrative expenses on Consolidated Statements of Income (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 27, 2015	Jun. 30, 2016	Jun. 27, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 26.8	$ 24.0	$ 27.5	$ 24.0
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	23.2	20.6	24.0	20.6
Other
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3.6	$ 3.4	$ 3.5	$ 3.4