Acquisitions And Divestitures (Summary Of Financial Information Related To Discontinued Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 25, 2011		Jun. 26, 2011		Mar. 27, 2011		Dec. 31, 2010		Sep. 26, 2010		Jun. 27, 2010		Mar. 28, 2010		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Acquisitions And Divestitures [Abstract]
Net sales																	$ 193	$ 1,177	$ 1,279
Earnings (loss) before income taxes																	(40)	17	24
Earnings (loss) after income taxes																	(28)	7	6
Gain on sale of EIG, after income taxes																		184
Other adjustments																	16	73
Net earnings (loss) from discontinued operations	$ (15)	[1]	$ 35	[1]	$ (6)	[1],[2]	$ (26)	[1],[2]	$ 140	[1]	$ 3	[1]	$ 107	[1],[2]	$ 14	[1],[2]	$ (12)	$ 264	$ 6

[1] The third quarter of 2011 included a tax benefit of $66 million related to Savi and the second quarter of 2010 included a tax benefit of $96 million related to PAE, both of which were recorded when the decision was made to dispose of each business. The fourth quarter of 2010 included a gain of $184 million from the sale of EIG. See Note 14 for further information related to these items.

[2] Net sales, operating profit, and net earnings (loss) from continuing and discontinued operations varies from the amounts previously reported on Forms 10-Q as a result of Savi being classified as discontinued operations in the third quarter of 2011.