Balance Sheet Information-Comprehensive Income-Equity (Details 8) - USD ($)	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Other Comprehensive Income
Provision for (benefit from) income taxes	$ (43,408,000)	$ 5,408,000
Cost of revenue	(794,135,000)	(762,483,000)
Research and development	(244,187,000)	(222,726,000)
Total reclassifications for the period, net of tax	(1,750,000)	(10,330,000)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Other Comprehensive Income
Provision for (benefit from) income taxes	184,000	(722,000)
Interest (expense) and other income (expense), net	38,000	1,997,000
Other-than-temporary impairment losses on available-for-sale securities	(524,000)	0
Total reclassifications for the period, net of tax	(302,000)	1,275,000
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Other Comprehensive Income
Cost of revenue	(1,325,000)	(11,605,000)
Research and development	(123,000)	0
Total reclassifications for the period, net of tax	$ (1,448,000)	$ (11,605,000)