Restructuring and Other Charges - Schedule of Restructuring Activities by Plan (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jul. 31, 2024	Jul. 31, 2024	Jul. 31, 2023
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period		$ 108	$ 32
Charges	$ 30	132	359
Cash payments		(156)	(187)
Non-cash and other adjustments		(5)	(143)
Accrued balance, end of the period	79	79	61
Total costs incurred to date	1,441	1,441
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	70	70
Other non-current liabilities	9	9
Fiscal 2023 Plan | Severance and EER
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period		88	0
Charges	27	120	318
Cash payments		(141)	(135)
Non-cash and other adjustments		0	(141)
Accrued balance, end of the period	67	67	42
Total costs incurred to date	522	522
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	67	67
Other non-current liabilities	0	0
Fiscal 2023 Plan | Non-labor
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period		18	0
Charges	2	8	38
Cash payments		(11)	(15)
Non-cash and other adjustments		(3)	(5)
Accrued balance, end of the period	12	12	18
Total costs incurred to date	49	49
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	3	3
Other non-current liabilities	9	9
Fiscal 2023 Plan | Special Termination Benefits
Restructuring Reserve [Roll Forward]
Charges			105
Non-cash and other adjustments			139
Other prior-year plans
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period		2	32
Charges	1	4	3
Cash payments		(4)	(37)
Non-cash and other adjustments		(2)	3
Accrued balance, end of the period	0	0	$ 1
Total costs incurred to date	870	870
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	0	0
Other non-current liabilities	$ 0	$ 0