Financial Instruments - Schedule of Pre-Tax Effect of Derivative Instruments in Cash Flow Hedging Relationships Included in Earnings (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Pre-tax effect of derivative instruments in cash flow hedging relationships
Net revenue	$ 13,185	$ 13,798
Cost of revenue	(10,297)	(11,011)
Operating expenses	(1,953)	(2,044)
Interest and other, net	(142)	(181)
Gain/(loss) reclassified from Accumulated  other comprehensive (loss) income into earnings	159	334
Cash flow hedges
Pre-tax effect of derivative instruments in cash flow hedging relationships
Net revenue	13,185	13,798
Cost of revenue	(10,297)	(11,011)
Operating expenses	(1,953)	(2,044)
Interest and other, net	(142)	(181)
Gain/(loss) reclassified from Accumulated  other comprehensive (loss) income into earnings	159	334
Cash flow hedges | Net revenue
Pre-tax effect of derivative instruments in cash flow hedging relationships
Gain/(loss) reclassified from Accumulated  other comprehensive (loss) income into earnings	199	386
Cash flow hedges | Cost of revenue
Pre-tax effect of derivative instruments in cash flow hedging relationships
Gain/(loss) reclassified from Accumulated  other comprehensive (loss) income into earnings	(40)	(54)
Cash flow hedges | Operating expenses
Pre-tax effect of derivative instruments in cash flow hedging relationships
Gain/(loss) reclassified from Accumulated  other comprehensive (loss) income into earnings	(3)	(1)
Cash flow hedges | Interest and other, net
Pre-tax effect of derivative instruments in cash flow hedging relationships
Gain/(loss) reclassified from Accumulated  other comprehensive (loss) income into earnings	$ 3	$ 3