XML 98 R26.htm IDEA: XBRL DOCUMENT v2.4.1.9
Accounts Receivable, Net (Tables)
 12 Months Ended
Dec. 31, 2014
Receivables [Abstract]  
Accounts receivable
Accounts receivable consisted of the following:
 
 
December 31
$ in millions
 
2014
 
2013
Due from U.S. Government
 
 
 
 
Billed
 
$
536

 
$
596

Unbilled
 
6,806

 
5,801

Progress and performance-based payments received
 
(5,150
)
 
(4,385
)
 
 
2,192

 
2,012

Due from Other Customers(1)
 
 
 
 
Billed
 
283

 
296

Unbilled
 
3,461

 
2,830

Progress and performance-based payments received
 
(3,062
)
 
(2,384
)
 
 
682

 
742

Total accounts receivable
 
2,874

 
2,754

Allowance for doubtful accounts
 
(68
)
 
(69
)
Total accounts receivable, net
 
$
2,806

 
$
2,685


(1) Includes receivables due from the U.S. Government associated with foreign military sales.