Summary of Restructuring Activities (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 29, 2013
Restructuring Cost and Reserve [Line Items]
Accrual as of beginning of period	$ 44.2
Current year charges	31.2
Utilization Cash	(26.5)
Utilization Non-cash	(4.2)
Accrual as of end of period	44.7
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Accrual as of beginning of period	38.5
Current year charges	19.8
Utilization Cash	(19.4)
Accrual as of end of period	38.9
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	4.2
Utilization Non-cash	(4.2)
Other related costs
Restructuring Cost and Reserve [Line Items]
Current year charges	6.9
Utilization Cash	$ (6.9)