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Amortizable Intangible Assets (Tables)
 9 Months Ended
Oct. 27, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Amortizable Intangible Assets Components
The components of our amortizable intangible assets are as follows:
 
October 27, 2019
 
January 27, 2019
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Amount
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Amount
 
(In millions)
 
(In millions)
Acquisition-related intangible assets
$
195

 
$
(191
)
 
$
4

 
$
195

 
$
(188
)
 
$
7

Patents and licensed technology
508

 
(469
)
 
39

 
491

 
(453
)
 
38

Total intangible assets
$
703

 
$
(660
)
 
$
43

 
$
686

 
$
(641
)
 
$
45