Income Taxes (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Apr. 03, 2015	Apr. 04, 2014	Jan. 02, 2015
Income Tax Contingency [Line Items]
Effective income tax rate	23.00%	23.00%
Statutory federal income tax rate	35.00%	35.00%
Unrecognized tax benefits that would impact effective tax rate	$ 43.7		$ 45.6
Unrecognized tax benefit liabilities include interest and penalties	5.2		4.7
Tax Year 2010 and 2011 [Member] \| Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
Proposed Adjustments on Income Tax Assessments	$ 67.0

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Section S99

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

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-Publisher FASB

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Estimated amount of loss resulting from an adverse tax position.

+ References

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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