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Inventory
3 Months Ended
Dec. 26, 2014
Inventory Disclosure [Abstract]  
Inventory
Inventory
Inventories consisted of the following ($ in millions):
 
As of
 
December 26,
2014
 
September 26,
2014
Purchased materials and manufactured parts
$
172

 
$
159

Work in process
88

 
86

Finished goods
398

 
383

Inventories
$
658

 
$
628


Inventories are recorded at the lower of cost (primarily first-in, first-out) or market value.