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Intangible Assets and Goodwill
9 Months Ended
Jun. 02, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets and Goodwill
Intangible Assets and Goodwill

As of
 
June 2, 2016
 
September 3, 2015
 
 
Gross
Amount
 
Accumulated
Amortization
 
Gross
Amount
 
Accumulated
Amortization
Amortizing assets
 
 
 
 
 
 
 
 
Product and process technology
 
$
824

 
$
(442
)
 
$
864

 
$
(416
)
Other
 
1

 

 
2

 
(1
)
 
 
825

 
(442
)
 
866

 
(417
)
Non-amortizing assets
 
 
 
 
 
 
 
 
In-process R&D
 
108

 

 

 

 
 
 
 
 
 
 
 
 
 
 
$
933

 
$
(442
)
 
$
866

 
$
(417
)
 
 
 
 
 
 
 
 
 
Goodwill(1)
 
$
104

 
 
 
$
23

 
 

(1) 
Included in other noncurrent assets.

During the first nine months of 2016 and 2015, we capitalized $24 million and $51 million, respectively, for product and process technology with weighted-average useful lives of 10 years and seven years, respectively. Amortization expense was $30 million and $90 million for the third quarter and first nine months of 2016, respectively, and $29 million and $89 million for the third quarter and first nine months of 2015, respectively.  The expected annual amortization expense for amortizing intangible assets held as of June 2, 2016 is $119 million for 2016, $107 million for 2017, $94 million for 2018, $46 million for 2019, and $28 million for 2020.

In the first quarter of 2016, we acquired Tidal Systems, Ltd., a developer of PCIe NAND Flash storage controllers, to enhance our NAND Flash controller technology for $148 million. In connection therewith, we recognized $108 million of in-process R&D; $81 million of goodwill, which was derived from expected cost reductions and other synergies and was assigned to our Storage Business Unit; and $41 million of deferred tax liabilities; which, in aggregate, represented substantially all of the purchase price. The in-process R&D was valued using a replacement cost approach, which included inputs of reproduction cost, including developer's profit, and opportunity cost. We will begin amortizing the in-process R&D when development is complete, which is estimated to be in 2017, and will amortize it over its then estimated useful life. The goodwill is not expected to be deductible for tax purposes.