Restructuring and Other Charges - Schedule of Restructuring Activities by Plan (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Oct. 31, 2023
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	$ 108	$ 32	$ 32
Charges	48	131
Cash payments	(72)	(82)
Non-cash and other adjustments	0	(6)
Accrued balance, end of the period	84	75	108
Total costs incurred to date	1,357
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	73
Other non-current liabilities	11
Fiscal 2023 Plan | Severance and EER
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	88	0	0
Charges	43	122
Cash payments	(63)	(53)
Non-cash and other adjustments	2	(2)
Accrued balance, end of the period	70	67	88
Total costs incurred to date	445
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	70
Other non-current liabilities	0
Fiscal 2023 Plan | Non-labor
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	18	0	0
Charges	2	9
Cash payments	(6)	(4)
Non-cash and other adjustments	0	(5)
Accrued balance, end of the period	14	0	18
Total costs incurred to date	43
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	3
Other non-current liabilities	11
Other prior-year plans
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of the period	2	32	32
Charges	3	0
Cash payments	(3)	(25)
Non-cash and other adjustments	(2)	1
Accrued balance, end of the period	0	$ 8	$ 2
Total costs incurred to date	869
Reflected in Consolidated Condensed Balance Sheets
Other current liabilities	0
Other non-current liabilities	$ 0