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Income Taxes (Tables)
 6 Months Ended
Apr. 30, 2025
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign
The following table provides income tax details:
 Three Months EndedSix Months Ended
April 30,April 30,
 2025202420252024
(in millions, except percentages)
Income before taxes$320$175$519$404
Provision for income taxes$63$49$93$106
Effective tax rate19.5 %27.6 %17.9 %25.8 %