Restructuring and Other Charges - Narrative (Details) employee in Thousands, $ in Millions		12 Months Ended
	Nov. 18, 2022 USD ($) employee	Oct. 31, 2023 USD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Other charges		$ 83	$ 25	$ 22
Fiscal 2023 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Expected number of positions to be eliminated | employee	4
Fiscal 2023 Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Expected number of positions to be eliminated | employee	6
Labor And Non-Labor Actions | Fiscal 2023 Plan
Restructuring Cost and Reserve [Line Items]
Estimated pre-tax charges	$ 1,000
Labor Costs | Fiscal 2023 Plan
Restructuring Cost and Reserve [Line Items]
Estimated pre-tax charges	$ 700