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Intangible Assets
 9 Months Ended
Jun. 04, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets

 
 
June 4, 2015
 
August 28, 2014
 
 
Gross
Amount
 
Accumulated
Amortization
 
Gross
Amount
 
Accumulated
Amortization
Product and process technology
 
$
834

 
$
(404
)
 
$
809

 
$
(341
)
Other
 
2

 
(1
)
 
1

 
(1
)
 
 
$
836

 
$
(405
)
 
$
810

 
$
(342
)


During the first nine months of 2015 and 2014, we capitalized $51 million and $29 million, respectively, for product and process technology with weighted-average useful lives of seven years and ten years, respectively. Amortization expense was $29 million and $89 million for the third quarter and first nine months of 2015, respectively, and $34 million and $88 million for the third quarter and first nine months of 2014, respectively.  Annual amortization expense is estimated to be $117 million for 2015, $107 million for 2016, $95 million for 2017, $83 million for 2018 and $35 million for 2019.