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Inventory
12 Months Ended
Sep. 26, 2014
Inventory Disclosure [Abstract]  
Inventory
Inventory
Inventories consisted of the following ($ in millions):
 
As of
September 26,
2014
 
As of
September 27,
2013
Purchased materials and manufactured parts
$
159

 
$
157

Work in process
86

 
93

Finished goods
383

 
395

Inventories
$
628

 
$
645


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