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Acquisitions and Divestitures (Tables)
 6 Months Ended
Jan. 28, 2017
Business Combinations [Abstract]  
Schedule of Business Acquisitions, by Acquisition
A summary of the allocation of the total purchase consideration is presented as follows (in millions):
 
Purchase Consideration
 
Purchased Intangible Assets
 
Goodwill
CloudLock
$
249

 
$
36

 
$
213

Others (two in total)
9

 
5

 
4

Total
$
258

 
$
41

 
$
217