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, 2019	Oct. 31, 2018
Derivatives, Fair Value
Outstanding Gross Notional	$ 21,888	$ 23,706
Gross Amount Recognized	475	515
Derivative Liabilities	105	195
Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	345	408
Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	130	107
Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	82	120
Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	23	75
Derivatives designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	16,680	18,147
Derivatives designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	330	386
Derivatives designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	130	107
Derivatives designated as hedging instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	68	86
Derivatives designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	23	75
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts
Derivatives, Fair Value
Outstanding Gross Notional	750	1,000
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	0	0
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Accrued 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	23
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	15,930	17,147
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	330	386
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	130	107
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	68	86
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	23	52
Derivatives not designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	5,208	5,559
Derivatives not designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	15	22
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 Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	14	34
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	5,072	5,437
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	9	22
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 Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	13	26
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	136	122
Derivatives not designated as hedging instruments \| Other derivatives \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	6	0
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 Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	1	8
Derivatives not designated as hedging instruments \| Other derivatives \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	$ 0	$ 0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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