Retirement and Post-Retirement Benefit Plans - Schedule of Pension and Post-Retirement Benefit (Credit) Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Post-Retirement Benefit Plans
Retirement and post-retirement benefit plans
Service cost	$ 0	$ 0
Interest cost	4	2
Expected return on plan assets	(3)	(2)
Amortization and deferrals:
Actuarial loss (gain)	(4)	(4)
Prior service cost (credit)	(3)	(3)
Net periodic benefit (credit) cost	(6)	(7)
Settlement loss	0	0
Total periodic benefit (credit) cost	(6)	(7)
U.S. | Defined Benefit Plans
Retirement and post-retirement benefit plans
Service cost	0	0
Interest cost	54	40
Expected return on plan assets	(65)	(74)
Amortization and deferrals:
Actuarial loss (gain)	5	1
Prior service cost (credit)	0	0
Net periodic benefit (credit) cost	(6)	(33)
Settlement loss	0	0
Total periodic benefit (credit) cost	(6)	(33)
Non-U.S. | Defined Benefit Plans
Retirement and post-retirement benefit plans
Service cost	9	14
Interest cost	10	6
Expected return on plan assets	(13)	(13)
Amortization and deferrals:
Actuarial loss (gain)	1	10
Prior service cost (credit)	1	2
Net periodic benefit (credit) cost	8	19
Settlement loss	1	0
Total periodic benefit (credit) cost	$ 9	$ 19