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Income Taxes
 9 Months Ended
Jul. 31, 2022
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The provision for income taxes was $263 million and $678 million for the fiscal quarter and three fiscal quarters ended July 31, 2022, respectively, compared to the benefit from income taxes of $150 million and $151 million for the fiscal quarter and three fiscal quarters ended August 1, 2021, respectively. The provision for income taxes for the fiscal quarter and three fiscal quarters ended July 31, 2022 was primarily driven by income before income taxes, offset by a shift in jurisdictional mix of income and expenses, and excess tax benefits from stock-based awards.
The benefit from income taxes for the fiscal quarter ended August 1, 2021 was primarily due to excess tax benefits from stock-based awards, the recognition of gross unrecognized tax benefits as a result of lapses of statutes of limitations and audit settlements, and a shift in jurisdictional mix of income and expenses, offset in part by income tax expense on operations. The benefit from income taxes for the three fiscal quarters ended August 1, 2021 reflected excess tax benefits from stock-based awards and the recognition of gross unrecognized tax benefits as a result of lapses of statutes of limitations and audit settlements, offset in part by income tax expense on operations.
As of July 31, 2022, we had $5,105 million of gross unrecognized tax benefits, of which all, if recognized, would favorably impact the effective tax rate. It is possible that our existing unrecognized tax benefits may change up to $390 million as a result of lapses of the statute of limitations for certain audit periods and/or anticipated closure of audit examinations within the next 12 months.