Contracts in Process (Tables)

9 Months Ended

Sep. 30, 2011

Contracts in Process (Tables) [Abstract]

Components of contracts in process

	September 30,			December 31,
	2011			2010
	(in millions)
Unbilled contract receivables, gross	$	2,887		$	2,769
Unliquidated progress payments		(1,033	)		(1,007	)
Unbilled contract receivables, net		1,854			1,762
Inventoried contract costs, gross		1,046			882
Unliquidated progress payments		(117	)		(96	)
Inventoried contract costs, net		929			786
Total contracts in process	$	2,783		$	2,548

General & Administrative, Independent Research & Development and Bid and Proposal Costs

	Third Quarter Ended						Year-to-Date Ended
	September 30,			September 24,			September 30,			September 24,
	2011			2010			2011			2010
	(in millions)
Amounts included in inventoried contract costs at beginning of the period	$	112		$	93		$	97		$	77
Add: IRAD and B&P costs		88			87			267			260
Other G&A costs		238			245			711			727
Total contract costs incurred		326			332			978			987
Less: Amounts charged to cost of sales		(332	)		(317	)		(969	)		(956	)
Amounts included in inventoried contract costs at end of the period	$	106		$	108		$	106		$	108

Selling, general and administrative expenses and research and development expenses

	Third Quarter Ended				Year-to-Date Ended
	September 30,		September 24,		September 30,		September 24,
	2011		2010		2011		2010
	(in millions)
Selling, general and administrative expenses	$	67	$	68	$	219	$	200
Research and development expenses		19		19		57		51
Total	$	86	$	87	$	276	$	251