Other Financial Data (Narrative) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended		0 Months Ended	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 27, 2014 Stock Options	Sep. 28, 2013 Stock Options	Sep. 27, 2014 Stock Options	Sep. 28, 2013 Stock Options	Nov. 03, 2014 Subsequent Event	Sep. 27, 2014 Schaumburg, IL
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			30,000,000	15,000,000								24,000,000
Gain (Loss) on Disposition of Property Plant Equipment	0	0	21,000,000	0								21,000,000
Stock options excluded from computation of dilutive shares due to antidilutive nature							4.9	5.6	4.8	4.8
Cash and cash equivalents	2,845,000,000	1,721,000,000	2,845,000,000	1,721,000,000	3,225,000,000	1,468,000,000
Restricted cash and cash equivalents	63,000,000		63,000,000		63,000,000
Depreciation expense	44,000,000	39,000,000	128,000,000	115,000,000
Stockholders' Equity Note [Abstract]
Stock repurchase program, authorized amount											12,000,000,000
Repurchase of common shares, value	650,000,000		1,100,000,000
Repurchase of common shares	10.4		17.4
Repurchase of common shares, average cost per share	$ 62.63		$ 64.36
Share repurchase authority utilized during period			6,400,000,000
Share repurchase program, available for repurchases			5,600,000,000
Cash dividends paid	$ 78,000,000	$ 69,000,000	$ 236,000,000	$ 212,000,000
Dividends declared per share (US$ per share)	$ 0.34	$ 0.31	$ 0.96	$ 0.83