v2.4.1.9
Intangible Assets
 3 Months Ended
Dec. 04, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets

 
 
December 4, 2014
 
August 28, 2014
 
 
Gross
Amount
 
Accumulated
Amortization
 
Gross
Amount
 
Accumulated
Amortization
Product and process technology
 
$
814

 
$
(364
)
 
$
809

 
$
(341
)
Customer relationships
 
1

 
(1
)
 
1

 
(1
)
 
 
$
815

 
$
(365
)
 
$
810

 
$
(342
)


During the first quarters of 2015 and 2014, we capitalized $12 million and $6 million, respectively, for product and process technology with weighted-average useful lives of 8 years and 9 years, respectively. Amortization expense was $30 million and $23 million for the first quarters of 2015 and 2014, respectively.  Annual amortization expense is estimated to be $115 million for 2015, $101 million for 2016, $90 million for 2017, $79 million for 2018 and $31 million for 2019.