Other Financial Data (Narrative) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended			6 Months Ended				3 Months Ended		6 Months Ended		0 Months Ended
	Jun. 28, 2014	Mar. 29, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Dec. 31, 2013	Dec. 31, 2012	Jun. 28, 2014 Stock Options [Member]	Jun. 29, 2013 Stock Options [Member]	Jun. 28, 2014 Stock Options [Member]	Jun. 29, 2013 Stock Options [Member]	Jul. 30, 2014 Subsequent Event [Member]
Other Financial Data [Line Items]
Building and Land Sold During Period, Net Book Value		$ 3,000,000
Proceeds from sales of property, plant and equipment		24,000,000		24,000,000	15,000,000
Stock options excluded from computation of dilutive shares due to antidilutive nature								4.6	4.3	4.8	4.4
Cash and cash equivalents	2,876,000,000		1,457,000,000	2,876,000,000	1,457,000,000	3,225,000,000	1,468,000,000
Restricted cash and cash equivalents	64,000,000			64,000,000		63,000,000
Depreciation expense	45,000,000		40,000,000	84,000,000	75,000,000
Stockholders' Equity Note [Abstract]
Repurchase of common shares, value	416,000,000			473,000,000
Repurchase of common shares	6.2			7.1
Repurchase of common shares, average cost per share	$ 66.96			$ 66.88
Share repurchase authority utilized during period				5,700,000,000
Share repurchase program, available for repurchases				1,300,000,000
Payments for Repurchase of Common Stock				473,000,000	907,000,000
Cash dividends paid	$ 79,000,000		$ 71,000,000	$ 158,000,000	$ 143,000,000
Dividends declared per share (US$ per share)	$ 0.31		$ 0.26	$ 0.62	$ 0.52							$ 0.34