Restructuring and Other Charges - Schedule of Restructuring Activities by Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	$ 138	$ 108
Charges	56	48
Cash payments	(60)	(72)
Non-cash and other adjustments	(12)	0
Accrued balance, end of the period	122	84
Total costs incurred to date	1,598
Reflected in the Consolidated Condensed Balance Sheets
Other current liabilities	114
Other non-current liabilities	8
Fiscal 2023 Plan | Severance and EER
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	120	88
Charges	44	43
Cash payments	(56)	(63)
Non-cash and other adjustments	(2)	2
Accrued balance, end of the period	106	70
Total costs incurred to date	651
Reflected in the Consolidated Condensed Balance Sheets
Other current liabilities	106
Other non-current liabilities	0
Fiscal 2023 Plan | Non-labor
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	11	18
Charges	12	2
Cash payments	(3)	(6)
Non-cash and other adjustments	(10)	0
Accrued balance, end of the period	10	14
Total costs incurred to date	69
Reflected in the Consolidated Condensed Balance Sheets
Other current liabilities	2
Other non-current liabilities	8
Other prior-year plans
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	7	2
Charges	0	3
Cash payments	(1)	(3)
Non-cash and other adjustments	0	(2)
Accrued balance, end of the period	6	$ 0
Total costs incurred to date	878
Reflected in the Consolidated Condensed Balance Sheets
Other current liabilities	6
Other non-current liabilities	$ 0