Receivables (Tables)

9 Months Ended

Sep. 30, 2014

Receivables [Abstract]

Receivables

Receivables consisted of the following (in millions):

	September 30, 2014			December 31, 2013
Trade receivables	$	2,078		$	2,368
Costs and estimated earnings in excess of billings on uncompleted contracts		397			253
Other receivables		134			119
Allowance for doubtful accounts		(29	)		(21	)
Total receivables	$	2,580		$	2,719