Business and Recent Accounting Pronouncements - Impact of the Reclassification to Selling, General and Administrative Expenses from Cost of Sales as Presented in the Consolidated Statement of Operations (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		0 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jan. 03, 2015
Decrease to cost of sales	$ 508.5	$ 418.9
Increase (decrease) to selling, general and administrative expenses	188.5	46.9
Increase to acquisition and integration expenses	4.7	1.1
Increase to property, plant and equipment, net	27.3	8.8
Adjustments [Member]
Decrease to inventories			(8.9)
Increase to property, plant and equipment, net			8.9
Adjustments [Member] | Cost of Sales [Member]
Decrease to cost of sales		(5.7)
Increase (decrease) to selling, general and administrative expenses		5.7
Adjustments [Member] | Selling, General and Administrative Expenses [Member]
Increase (decrease) to selling, general and administrative expenses		(1.1)
Increase to acquisition and integration expenses		$ 1.1