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Income Taxes
6 Months Ended
Jan. 23, 2021
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The following table provides details of income taxes (in millions, except percentages):
Three Months EndedSix Months Ended
January 23,
2021
January 25,
2020
January 23,
2021
January 25,
2020
Income before provision for income taxes$3,255 $3,534 $5,936 $7,220 
Provision for income taxes$710 $656 $1,217 $1,416 
Effective tax rate21.8 %18.6 %20.5 %19.6 %
As of January 23, 2021, we had $2.5 billion of unrecognized tax benefits, of which $2.1 billion, if recognized, would favorably impact the effective tax rate. We regularly engage in discussions and negotiations with tax authorities regarding tax matters in various jurisdictions. We believe it is reasonably possible that certain federal, foreign and state tax matters may be concluded in the next 12 months. Specific positions that may be resolved include issues involving transfer pricing and various other matters.