Retirement and Post-Retirement Benefit Plans - Schedule of Components of Pension and Post-Retirement Benefit (Credit) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0
Interest cost	4	4
Expected return on plan assets	(4)	(4)
Amortization and deferrals:
Actuarial loss (gain)	(4)	(4)
Prior service cost (credit)	(2)	(3)
Net periodic benefit (credit) cost	(6)	(7)
Total periodic benefit (credit) cost	(6)	(7)
U.S. | Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	53	57
Expected return on plan assets	(59)	(61)
Amortization and deferrals:
Actuarial loss (gain)	7	7
Prior service cost (credit)	0	0
Net periodic benefit (credit) cost	1	3
Total periodic benefit (credit) cost	1	3
Non-U.S. | Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	9	9
Interest cost	10	12
Expected return on plan assets	(14)	(13)
Amortization and deferrals:
Actuarial loss (gain)	2	0
Prior service cost (credit)	2	2
Net periodic benefit (credit) cost	9	10
Total periodic benefit (credit) cost	$ 9	$ 10