Restructuring and Other Charges - Narrative (Details) employee in Thousands, $ in Millions		3 Months Ended		6 Months Ended
	Feb. 27, 2025 USD ($) employee	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Nov. 18, 2022 USD ($)
Restructuring Cost and Reserve [Line Items]
Other charges | $		$ 17	$ 17	$ 31	$ 32
Fiscal 2023 Plan
Restructuring Cost and Reserve [Line Items]
Expected positions to be eliminated | employee	7
Fiscal 2023 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Expected positions to be eliminated | employee	1
Fiscal 2023 Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Expected positions to be eliminated | employee	2
Fiscal 2023 Plan | Labor and Non-Labor Actions
Restructuring Cost and Reserve [Line Items]
Estimated pre-tax charges | $	$ 150					$ 1,000
Fiscal 2023 Plan | Labor Costs
Restructuring Cost and Reserve [Line Items]
Estimated pre-tax charges | $						$ 700