Summary of Inventories (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013		Dec. 31, 2012
Inventory Disclosure [Line Items]
Raw materials	$ 628.7		$ 582.2
Work-in-process	51.2		37.4
Finished goods	113.5		107.5
Inventories	$ 793.4	[1]	$ 727.1

[1] Unaudited.