Receivables (Tables)

6 Months Ended

Jun. 30, 2014

Receivables [Abstract]

Receivables

Receivables consisted of the following (in millions):

	June 30, 2014			December 31, 2013
Trade receivables	$	2,107		$	2,368
Costs and estimated earnings in excess of billings on uncompleted contracts		305			253
Other receivables		160			119
Allowance for doubtful accounts		(24	)		(21	)
Total receivables	$	2,548		$	2,719