CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Income Statement [Abstract]
Revenues	$ 589,583	$ 659,573	$ 1,158,219	$ 1,281,997
Cost of revenues	290,324	327,685	569,456	663,197
Gross profit	299,259	331,888	588,763	618,800
Research and development	176,448	175,564	347,753	345,435
Selling, general and administrative	87,432	88,914	176,927	179,014
Restructuring of operations and other items, net	7,807	6,491	28,259	21,953
Income from operations	27,572	60,919	35,824	72,398
Interest income and other, net	2,248	9,594	10,128	24,250
Income before income taxes	29,820	70,513	45,952	96,648
Provision for/(benefit from) income taxes	5,200	11,800	2,900	(37,262)
Net income	$ 24,620	$ 58,713	$ 43,052	$ 133,910
Net income per share:
Basic	$ 0.04	$ 0.10	$ 0.08	$ 0.24
Diluted	$ 0.04	$ 0.10	$ 0.08	$ 0.23
Shares used in computing per share amounts:
Basic	548,282	563,686	549,249	564,945
Diluted	561,801	581,344	565,426	586,431