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Inventories (Tables)
 6 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Components of Inventories
Inventories consist of (table in millions):
 
June 30,
2016
 
December 31,
2015
Work-in-process
$
676

 
$
592

Finished goods
567

 
653

 
$
1,243

 
$
1,245