Inventories, Net (Tables)

12 Months Ended

Dec. 31, 2011

Inventories, Net [Abstract]

Schedule Of Inventories

(In millions)	2011			2010
Work-in-process, primarily related to long-term contracts and programs in progress	$	7,129		$	6,508
Less: customer advances and progress payments		(5,425	)		(4,788	)
		1,704			1,720
Other inventories		777			643
Total inventories, net	$	2,481		$	2,363