Net Income Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Numerator for basic net income per share:
Net income	$ 268,948	$ 166,229
Denominator for basic net income per share:
Weighted-average common shares outstanding	225,845,000	242,519,000
Basic net income per share	$ 1.19	$ 0.69
Numerator for diluted net income per share:
Net income	$ 268,948	$ 166,229
Denominator for diluted net income per share:
Weighted-average common shares outstanding	225,845,000	242,519,000
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	3,103,000	3,058,000
1.5% Notes due 2017	5,702,000	0
Warrants	264,000	0
Shares used in computing diluted net income per share	234,914,000	245,577,000
Diluted net income per share	$ 1.14	$ 0.68
Antidilutive Shares
Anti-dilutive shares excluded from net income per share calculation	33,000,000	68,296,000