Receivables, Net (Tables)

12 Months Ended

Dec. 31, 2011

Receivables, Net [Abstract]

Schedule Of Receivables By Component

(In millions)	2011			2010
U.S. Government
Amounts billed	$	1,273		$	1,360
Unbilled costs and accrued profits		4,961			3,176
Less: customer advances and progress payments		(1,086	)		(705	)
Total U.S. Government receivables, net		5,148			3,831
Foreign governments and commercial
Amounts billed		396			461
Unbilled costs and accrued profits		774			1,649
Less: customer advances		(254	)		(249	)
Total foreign governments and commercial receivables, net		916			1,861
Total receivables, net	$	6,064		$	5,692