Summary of Restructuring Activities (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 28, 2013
Restructuring Cost and Reserve [Line Items]
Accrual as of beginning of period	$ 44.2
Current year charges	42.9
Utilization Cash	(39.7)
Utilization Non-cash	(4.6)
Accrual as of end of period	42.8
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Accrual as of beginning of period	38.5
Current year charges	28.1
Utilization Cash	(29.6)
Accrual as of end of period	37.0
Contract termination costs
Restructuring Cost and Reserve [Line Items]
Accrual as of beginning of period	5.7
Current year charges	0.3
Utilization Cash	(0.2)
Accrual as of end of period	5.8
Asset Impairment Charge
Restructuring Cost and Reserve [Line Items]
Current year charges	4.6
Utilization Non-cash	(4.6)
Other related costs
Restructuring Cost and Reserve [Line Items]
Current year charges	9.9
Utilization Cash	$ (9.9)