CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013		Dec. 28, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 753	$ 626	[1]	$ 571
Other comprehensive (loss) income:
Foreign currency translation adjustments	(41)	1		4
Other derivative instrument adjustments, net of tax	8	0		(2)
Unrealized gains on available-for-sale securities, net of tax	5	5		0
Reclassification of losses (gains), net of tax	2	(6)		2
Total other comprehensive (loss) income, net of tax	(26)	0		4
Comprehensive income	$ 727	$ 626		$ 575

[1] The sum of the earnings per share for the four quarters differs from annual earnings per share due to the required method of computing the weighted average shares in interim periods.