Retirement and Post-Retirement Benefit Plans - Narrative (Details) $ in Millions	6 Months Ended
	Apr. 30, 2025 USD ($)
Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Contributions to benefit plans	$ 4
Non-U.S. | Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Contributions to benefit plans	21
U.S. | Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Contributions to benefit plans	$ 13