Consolidated Statements Of Earnings (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Revenues:
Products	$ 4,718	$ 5,061
Services	2,861	2,737
Revenues, total	7,579	7,798
Operating costs and expenses:
Products	3,764	4,009
Services	2,420	2,351
General and administrative	535	509
Operating costs and expenses, total	6,719	6,869
Operating earnings	860	929
Interest, net	(39)	(34)
Other, net		1
Earnings before income taxes	821	896
Provision for income taxes, net	257	278
Net earnings	$ 564	$ 618
Earnings per share
Basic	$ 1.58	$ 1.66
Diluted	$ 1.57	$ 1.64