Financial Instruments - Gross Notional and Fair Value of Instruments in the Balance Sheets (Details) - USD ($) $ in Millions	Apr. 30, 2025	Oct. 31, 2024
Derivatives, Fair Value
Outstanding Gross Notional	$ 18,190	$ 17,970
Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	111	191
Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	44	108
Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	314	121
Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	103	42
Derivatives Designated as Hedging Instruments
Derivatives, Fair Value
Outstanding Gross Notional	12,295	12,295
Derivatives Designated as Hedging Instruments \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	71	145
Derivatives Designated as Hedging Instruments \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	40	103
Derivatives Designated as Hedging Instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	254	101
Derivatives Designated as Hedging Instruments \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	102	38
Derivatives Designated as Hedging Instruments \| Fair Value Hedges: \| Interest rate contracts
Derivatives, Fair Value
Outstanding Gross Notional	2,500	2,500
Derivatives Designated as Hedging Instruments \| Fair Value Hedges: \| Interest rate contracts \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	0	0
Derivatives Designated as Hedging Instruments \| Fair Value Hedges: \| Interest rate contracts \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	0	0
Derivatives Designated as Hedging Instruments \| Fair Value Hedges: \| Interest rate contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	28	58
Derivatives Designated as Hedging Instruments \| Fair Value Hedges: \| Interest rate contracts \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	0	0
Derivatives Designated as Hedging Instruments \| Cash Flow Hedges: \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	7,801	7,809
Derivatives Designated as Hedging Instruments \| Cash Flow Hedges: \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	41	107
Derivatives Designated as Hedging Instruments \| Cash Flow Hedges: \| Foreign currency contracts \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	18	59
Derivatives Designated as Hedging Instruments \| Cash Flow Hedges: \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	205	31
Derivatives Designated as Hedging Instruments \| Cash Flow Hedges: \| Foreign currency contracts \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	87	25
Derivatives Designated as Hedging Instruments \| Net Investment Hedges: \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	1,994	1,986
Derivatives Designated as Hedging Instruments \| Net Investment Hedges: \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	30	38
Derivatives Designated as Hedging Instruments \| Net Investment Hedges: \| Foreign currency contracts \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	22	44
Derivatives Designated as Hedging Instruments \| Net Investment Hedges: \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	21	12
Derivatives Designated as Hedging Instruments \| Net Investment Hedges: \| Foreign currency contracts \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	15	13
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value
Outstanding Gross Notional	5,895	5,675
Derivatives Not Designated as Hedging Instruments \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	40	46
Derivatives Not Designated as Hedging Instruments \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	4	5
Derivatives Not Designated as Hedging Instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	60	20
Derivatives Not Designated as Hedging Instruments \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	1	4
Derivatives Not Designated as Hedging Instruments \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	5,762	5,528
Derivatives Not Designated as Hedging Instruments \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	37	46
Derivatives Not Designated as Hedging Instruments \| Foreign currency contracts \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	4	5
Derivatives Not Designated as Hedging Instruments \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	60	18
Derivatives Not Designated as Hedging Instruments \| Foreign currency contracts \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	1	4
Derivatives Not Designated as Hedging Instruments \| Other derivatives
Derivatives, Fair Value
Outstanding Gross Notional	133	147
Derivatives Not Designated as Hedging Instruments \| Other derivatives \| Other Current Assets
Derivatives, Fair Value
Derivative asset, fair value	3	0
Derivatives Not Designated as Hedging Instruments \| Other derivatives \| Long-Term Financing Receivables and Other Assets
Derivatives, Fair Value
Derivative asset, fair value	0	0
Derivatives Not Designated as Hedging Instruments \| Other derivatives \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative liability, fair value	0	2
Derivatives Not Designated as Hedging Instruments \| Other derivatives \| Long-Term Other Liabilities
Derivatives, Fair Value
Derivative liability, fair value	$ 0	$ 0

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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