Receivables (Tables)

12 Months Ended

Dec. 31, 2015

Receivables [Abstract]

Receivables

Receivables consisted of the following:

	December 31,
(dollars in millions)	2015			2014
Trade receivables	$	1,167		$	1,678
Costs and estimated earnings in excess of billings on uncompleted contracts	736			621
Other receivables	118			122
Allowance for doubtful accounts	(57		)	(32		)
Total receivables	$	1,964		$	2,389