Shareholders' Equity (Details 2) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended								12 Months Ended
	Feb. 28, 2014	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Earnings Per Share
Shares repurchased under ASR	4,300,000
Value of shares repurchased under ASR	$ 167
Weighted-average shares outstanding for basic and diluted
Basic weighted-average shares outstanding		277,347,000	278,860,000	280,280,000	281,094,000	282,308,000	281,525,000	280,163,000	273,200,000	279,409,000	279,299,000	280,182,000
Dilutive effect of:
Stock options										2,049,000	328,000	428,000
ASR										332,000
Convertible notes and warrants											4,801,000	14,053,000
Diluted weighted-average shares outstanding		279,771,000	281,030,000	282,764,000	283,327,000	282,707,000	281,710,000	283,824,000	288,978,000	281,790,000	284,428,000	294,663,000
Anti-dilutive effect of weighted average shares										2,000,000	5,000,000	7,000,000