Inventoried Costs, Net

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Inventoried Costs, Net

6. INVENTORIED COSTS, NET

Inventoried costs are primarily from contracts where the U.S. Government is the primary customer, therefore the company does not believe it has significant exposure to recoverability risk related to these amounts.

Inventoried costs consisted of the following:

	December 31
$ in millions	2017			2016
Production costs of contracts in process	$	1,813		$	1,574
G&A expenses	266			249
Contracts in process, gross	2,079			1,823
Progress and performance-based payments received	(1,396		)	(1,107		)
Contracts in process, net	683			716
Product inventory and raw material	97			100
Total inventoried costs, net	$	780		$	816