Contracts in Process (Tables)

3 Months Ended

Mar. 30, 2012

Contracts in Process [Abstract]

Components of contracts in process

	March 30, 2012			December 31, 2011
	(in millions)
Unbilled contract receivables, gross	$	3,107		$	2,926
Unliquidated progress payments		(1,160	)		(1,146	)
Unbilled contract receivables, net		1,947			1,780
Inventoried contract costs, gross		950			928
Unliquidated progress payments		(71	)		(79	)
Inventoried contract costs, net		879			849
Total contracts in process	$	2,826		$	2,629

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

	First Quarter Ended
	March 30, 2012		April 1, 2011
	(in millions)
Amounts included in inventoried contract costs at beginning of the period	$	91	$	97
Add: IRAD and B&P costs		87		81
Other G&A costs		235		231
Total contract costs incurred		322		312
Less: Amounts charged to cost of sales		(313)		(307)
Amounts included in inventoried contract costs at end of the period	$	100	$	102

Selling, general and administrative expenses and research and development expenses

	First Quarter Ended
	March 30, 2012		April 1, 2011
	(in millions)
Selling, general and administrative expenses	$	76	$	76
Research and development expenses		19		18
Total	$	95	$	94