Business Segments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Segment Reporting Information [Line Items]
Decrease in segment profit due to non-cash inventory step-up amortization	$ 454.0	$ 443.2	$ 1,291.4	$ 1,233.3

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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