Taxes on Earnings - Schedule of (Benefit from) Provision for Taxes on Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
U.S. federal taxes:
Current	$ (188)	$ 245	$ 226
Deferred	(121)	34	(549)
Non-U.S. taxes:
Current	328	357	337
Deferred	95	(193)	(305)
State taxes:
Current	(13)	33	42
Deferred	38	28	(77)
Provision for (benefit from) taxes	$ 139	$ 504	$ (326)