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Intangible Assets
 12 Months Ended
Sep. 03, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets

As of
 
2015
 
2014
 
 
Gross
Amount
 
Accumulated
Amortization
 
Gross
Amount
 
Accumulated
Amortization
Product and process technology
 
$
864

 
$
(416
)
 
$
809

 
$
(341
)
Other
 
2

 
(1
)
 
1

 
(1
)
 
 
$
866

 
$
(417
)
 
$
810

 
$
(342
)


During 2015 and 2014, we capitalized $98 million and $177 million, respectively, for product and process technology with weighted-average useful lives of seven years and six years, respectively. Amortization expense was $117 million, $110 million, and $83 million for 2015, 2014, and 2013, respectively.  The expected annual amortization expense for intangible assets held as of September 3, 2015 is $118 million for 2016, $102 million for 2017, $93 million for 2018, $43 million for 2019, and $26 million for 2020.