Restructuring and Other Charges - Schedule of Restructuring Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of period	$ 32	$ 90	$ 77
Charges	444	193	229
Cash payments	(222)	(217)	(182)
Non-cash and other adjustments	(146)	(34)	(34)
Accrued balance, end of period	108	32	90
Total costs incurred to date	1,309
Reflected in Consolidated Balance Sheets:
Other current liabilities	96
Other non-current liabilities	12
Fiscal 2023 Plan | Severance and EER
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of period	0	0	0
Charges	402	0	0
Cash payments	(172)	0	0
Non-cash and other adjustments	(142)	0	0
Accrued balance, end of period	88	0	0
Total costs incurred to date	402
Reflected in Consolidated Balance Sheets:
Other current liabilities	88
Other non-current liabilities	0
Fiscal 2023 Plan | Non-labor
Restructuring Reserve [Roll Forward]
Accrued balance, beginning of period	0	0	0
Charges	41	0	0
Cash payments	(15)	0	0
Non-cash and other adjustments	(8)	0	0
Accrued balance, end of period	18	0	0
Total costs incurred to date	41
Reflected in Consolidated Balance Sheets:
Other current liabilities	6
Other non-current liabilities	12
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 period	32	90	77
Charges	1	193	229
Cash payments	(35)	(217)	(182)
Non-cash and other adjustments	4	(34)	(34)
Accrued balance, end of period	2	$ 32	$ 90
Total costs incurred to date	866
Reflected in Consolidated Balance Sheets:
Other current liabilities	2
Other non-current liabilities	$ 0