Retirement and Post-Retirement Benefit Plans - Pension and Post-Retirement Benefit Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Amortization and deferrals:
Settlement (gain) loss	$ 0	$ 0	$ (37)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and other, net	Interest and other, net	Interest and other, net
Post-Retirement Benefit Plans
Net benefit (credit) cost
Service cost	$ 1	$ 1	$ 1
Interest cost	15	8	9
Expected return on plan assets	(14)	(9)	(24)
Amortization and deferrals:
Actuarial loss (gain)	(16)	(15)	(16)
Prior service cost (credit)	(11)	(11)	(11)
Net periodic benefit (credit) cost	(25)	(26)	(41)
Settlement (gain) loss	0	0	0
Special termination benefit cost	34	0	0
Total periodic benefit (credit) cost	9	(26)	(41)
U.S. | Defined Benefit Plans
Net benefit (credit) cost
Service cost	0	0	0
Interest cost	217	161	281
Expected return on plan assets	(258)	(298)	(475)
Amortization and deferrals:
Actuarial loss (gain)	18	5	50
Prior service cost (credit)	0	0	0
Net periodic benefit (credit) cost	(23)	(132)	(144)
Settlement (gain) loss	0	0	(37)
Special termination benefit cost	105	0	0
Total periodic benefit (credit) cost	82	(132)	(181)
Non-U.S. | Defined Benefit Plans
Net benefit (credit) cost
Service cost	39	56	67
Interest cost	41	22	18
Expected return on plan assets	(53)	(48)	(49)
Amortization and deferrals:
Actuarial loss (gain)	4	36	52
Prior service cost (credit)	5	5	5
Net periodic benefit (credit) cost	36	71	93
Settlement (gain) loss	0	0	1
Special termination benefit cost	0	0	0
Total periodic benefit (credit) cost	$ 36	$ 71	$ 94