Income Taxes (Schedule Of Difference Between The Tax Provision At The Statutory Federal Income Tax Rate And The Tax Provision As A Percentage Of Income Before Taxes (Effective Tax Rate)) (Details)	12 Months Ended
Jan. 02, 2015	Jan. 03, 2014	Dec. 28, 2012
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	35.00%	35.00%	35.00%
Foreign income taxed at lower rates	(18.00%)	(20.00%)	(19.00%)
US State income taxes	2.00%	2.00%	1.00%
US Federal research and development credits	(1.00%)	(3.00%)	0.00%
Stock-based compensation	1.00%	1.00%	1.00%
Foreign tax rate change	0.00%	(2.00%)	0.00%
Other	1.00%	1.00%	(1.00%)
Effective tax rate	20.00%	14.00%	17.00%

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

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

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

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