Basis of Presentation - Additional Information (Detail) - Segment [Domain] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014	Jan. 03, 2015
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	$ 17.6	$ 33.4	$ 35.5	$ 64.8
Liabilities of Assets Held-for-sale	21.0		21.0		$ 23.4
Assets Held-for-sale, Current	19.1		19.1		$ 29.5
Net Sales	$ 2,866.9	$ 2,860.1	$ 5,496.9	$ 5,477.2