Financial Instruments - Schedule of Gross Notional and Fair Value of Derivative Financial Instruments in the Consolidated Condensed Balance Sheets (Details) - USD ($) $ in Millions	Jul. 31, 2020	Oct. 31, 2019
Derivatives, Fair Value
Outstanding Gross Notional	$ 20,861	$ 23,669
Gross Amount Recognized	199	392
Derivative Liabilities	444	166
Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	169	277
Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	30	115
Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	381	138
Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	63	28
Derivatives designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	15,760	16,389
Derivatives designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	120	260
Derivatives designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	30	115
Derivatives designated as hedging instruments \| Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	363	123
Derivatives designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	63	28
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts
Derivatives, Fair Value
Outstanding Gross Notional	750	750
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	6	4
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	15,010	15,639
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	120	260
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	24	111
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	363	123
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	63	28
Derivatives not designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	5,101	7,280
Derivatives not designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	49	17
Derivatives not designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives not designated as hedging instruments \| Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	18	15
Derivatives not designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives not designated as hedging instruments \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	4,963	7,146
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	27	10
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	18	14
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives not designated as hedging instruments \| Other derivatives
Derivatives, Fair Value
Outstanding Gross Notional	138	134
Derivatives not designated as hedging instruments \| Other derivatives \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	22	7
Derivatives not designated as hedging instruments \| Other derivatives \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives not designated as hedging instruments \| Other derivatives \| Other Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	1
Derivatives not designated as hedging instruments \| Other derivatives \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	$ 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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Nominal or face amount used to calculate payment on derivative.

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