Taxes on Earnings - Schedule of Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Unrecognized Tax Benefits
Balance at beginning of year	$ 1,217	$ 1,137	$ 1,045
Increases:
For current year’s tax positions	85	82	61
For prior years’ tax positions	14	52	186
Decreases:
For prior years’ tax positions	(79)	(9)	(35)
Statute of limitations expirations	(338)	(33)	(8)
Settlements with taxing authorities	(34)	(12)	(112)
Balance at end of year	$ 865	$ 1,217	$ 1,137