Business Segments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Segment Reporting Information [Line Items]
Decrease in segment profit due to non-cash inventory step-up amortization	$ 451.1	$ 437.8	$ 837.4	$ 790.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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