Net Income Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Numerator for basic net income per share:
Net income	$ 1,007,446	$ 1,042,657	$ 417,404
Denominator for basic net income per share:
Weighted-average common shares outstanding	222,714,000	234,886,000	242,076,000
Basic net income per share	$ 4.52	$ 4.44	$ 1.72
Numerator for diluted net income per share:
Net income	$ 1,007,446	$ 1,042,657	$ 417,404
Denominator for diluted net income per share:
Weighted-average common shares outstanding	222,714,000	234,886,000	242,076,000
Incremental common shares attributable to exercise of outstanding employee stock options, SARs and ESPP (assuming proceeds would be used to purchase common stock), and RSUs	3,419,000	3,263,000	3,177,000
1.5% Notes due 2017	8,261,000	2,087,000	0
Warrants issued in conjunction with the 1.5% Notes due 2017	3,815,000	0	0
Shares used in computing diluted net income per share	238,209,000	240,236,000	245,253,000
Diluted net income per share	$ 4.23	$ 4.34	$ 1.70
Antidilutive Shares
Anti-dilutive shares excluded from net income per share calculation	33,672,000	53,485,000	70,309,000