Balance Sheet Information-AOCI (Details 8) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Other Comprehensive Income
Cost of revenue	$ (723,995,000)	$ (854,640,000)	$ (1,486,478,000)	$ (1,595,679,000)
Research and development	(218,418,000)	(204,030,000)	(441,144,000)	(402,859,000)
Provision for income taxes	(10,171,000)	(129,131,000)	(4,763,000)	(269,722,000)
Total reclassifications for the period, net of tax	(1,815,000)	(5,629,000)	(12,145,000)	(6,818,000)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Other Comprehensive Income
Interest (expense) and other income (expense), net	522,000	3,413,000	2,519,000	3,983,000
Provision for income taxes	(187,000)	(1,199,000)	(909,000)	(1,394,000)
Total reclassifications for the period, net of tax	335,000	2,214,000	1,610,000	2,589,000
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Other Comprehensive Income
Cost of revenue	(2,150,000)	(7,689,000)	(13,755,000)	(9,050,000)
Research and development	0	(154,000)	0	(357,000)
Total reclassifications for the period, net of tax	$ (2,150,000)	$ (7,843,000)	$ (13,755,000)	$ (9,407,000)