Balance Sheet Information (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Movement in Standard and Extended Product Warranty, Increase (Decrease)
Product Warranty Accrual, beginning of period	$ 24,702	$ 25,909	$ 36,469
Additions and adjustments to cost of product revenues	29,444	30,732	23,129
Usage	(27,189)	(31,939)	(33,689)
Product Warranty Accrual, end of period	26,957	24,702	25,909
Accumulated Other Comprehensive Income (Loss), Net of Tax
Available-for-sale investments	10,849	17,505
Foreign currency translation	300,788	231,255
Hedging activities	21,064	11,468
Total Other Comprehensive Income, Net of Tax	332,701	260,228
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Available-for-sale investments	3,342	(6,301)	13,745
Foreign Currency Translation	10,315	20,979	(5,643)
Hedging activities	2,504	(2,776)	(11,588)
Other Comprehensive Income (Loss), Tax	$ 16,161	$ 11,902	$ (3,486)