Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Leases [Abstract]
Cash paid for amount included in the measurement of lease liabilities	$ 233	$ 238
Right-of-use assets obtained in exchange of lease liabilities	$ 363	$ 385
Weighted-average remaining lease term in years	5 years	5 years
Weighted-average discount rate	5.20%	3.40%