Net Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Net Earnings Per Share [Line Items]
Net earnings	$ 176	$ 227	$ 632	$ 701
Basic weighted average shares outstanding	314.7	324.2	314.8	326.0
Diluted weighted average shares outstanding	316.3	326.8	316.4	329.4
Basic net earnings per share	$ 0.56	$ 0.70	$ 2.01	$ 2.15
Diluted net earnings per share	$ 0.56	$ 0.69	$ 2.00	$ 2.13
Common stock subject to stock options, restricted stock awards and restricted stock units excluded from the diluted net earnings per share computation	16.1	7.8	16.7	7.3
Employee Stock Options [Member]
Net Earnings Per Share [Line Items]
Effect of dilutive securities	1.3	2.4	1.4	3.3
Restricted Stock Units [Member]
Net Earnings Per Share [Line Items]
Effect of dilutive securities	0.3	0.2	0.2	0.1