Stock-Based Compensation - Employee Stock Purchase Plan (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of tax	$ 434,000,000	$ 375,000,000	$ 366,000,000
2021 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee contribution limit (as a percent)	10.00%
Stock purchase price (as a percent)	95.00%
Stock-based compensation expense, net of tax	$ 0
Stock authorized for issuance (in shares)	50,000,000