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Commitments and Contingencies (Tables)
 6 Months Ended
Jan. 23, 2021
Commitments and Contingencies Disclosure [Abstract]  
Compensation Expense Related to Business Acquisitions
The following table summarizes the compensation expense related to acquisitions (in millions):
Three Months EndedSix Months Ended
January 23, 2021January 25, 2020January 23, 2021January 25, 2020
Compensation expense related to acquisitions$59 $50 $116 $111 
Schedule of Product Warranty Liability
The following table summarizes the activity related to the product warranty liability (in millions):
Six Months Ended
January 23,
2021		January 25,
2020
Balance at beginning of period$331 $342 
Provisions for warranties issued247 283 
Adjustments for pre-existing warranties4 (3)
Settlements (249)(291)
Balance at end of period$333 $331 
Schedule of Guarantor Obligations The aggregate amounts of financing guarantees outstanding at January 23, 2021 and July 25, 2020, representing the total maximum potential future payments under financing arrangements with third parties along with the related deferred revenue, are summarized in the following table (in millions):
January 23,
2021		July 25,
2020
Maximum potential future payments relating to financing guarantees:
Channel partner$205 $198 
End user8 9 
Total$213 $207 
Deferred revenue associated with financing guarantees:
Channel partner$(19)$(19)
End user(8)(9)
Total$(27)$(28)
Total$186 $179