Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2014

Accounts Receivable, Net [Abstract]

Accounts Receivable

Accounts receivable represent amounts billed and currently due from customers and consisted of the following:

December 31	2014		2013
Non-U.S. government	$	2,529	$	2,767
U.S. government	822		951
Commercial	699		652
Total accounts receivable	$	4,050	$	4,370