Taxes on Earnings (Details) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2024 USD ($) country	Jul. 31, 2023 USD ($)	Jul. 31, 2024 USD ($) country	Jul. 31, 2023 USD ($)
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	22.60%	18.20%	22.70%	(9.80%)
Income tax reconciliation other discrete items tax charges (credits)	$ 3	$ (32)	$ (14)	$ (724)
Tax benefits related to filing of tax returns		51	17	15
Tax benefits related to restructuring charges	10	16	36	82
Uncertain tax position charges	19	17	46	32
Tax benefits related to internal reorganization				697
Tax effects related to acquisition and divestiture charges		10		37
Tax charges related to audit settlements		2		60
Tax charges for extinguishment of debt		27		25
Unrecognized tax benefits	1,200		1,200
Unrecognized tax benefits that would impact effective tax rate	867		867
Unrecognized increase in tax benefits change			43
Penalties and interest accrued	130	$ 98	$ 130	$ 98
Likelihood of no resolution period			12 months
Reasonably possible decrease in existing unrecognized tax benefits within the next 12 months	$ 21		$ 21
Other countries with income tax jurisdiction | country	60		60