Financial Instruments - Schedule of Gross Notional and Fair Value of Derivative Financial Instruments in the Consolidated Condensed Balance Sheets (Details) - USD ($) $ in Millions	Apr. 30, 2017	Oct. 31, 2016
Derivatives, Fair Value
Outstanding Gross Notional	$ 21,272	$ 17,936
Gross Amount Recognized	134	325
Derivative Liabilities	278	97
Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	114	214
Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	20	111
Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	240	85
Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	38	12
Derivatives designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	16,274	13,852
Derivatives designated as hedging instruments | Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	89	203
Derivatives designated as hedging instruments | Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	19	111
Derivatives designated as hedging instruments | Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	193	52
Derivatives designated as hedging instruments | Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	37	12
Derivatives designated as hedging instruments | Fair value hedges | Interest rate contracts
Derivatives, Fair Value
Outstanding Gross Notional	2,500	2,000
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	3	48
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	3	0
Derivatives designated as hedging instruments | Cash flow hedges | Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	13,774	11,852
Derivatives designated as hedging instruments | Cash flow hedges | Foreign currency contracts | Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	89	203
Derivatives designated as hedging instruments | Cash flow hedges | Foreign currency contracts | Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	16	63
Derivatives designated as hedging instruments | Cash flow hedges | Foreign currency contracts | Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	193	52
Derivatives designated as hedging instruments | Cash flow hedges | Foreign currency contracts | Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	34	12
Derivatives not designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	4,998	4,084
Derivatives not designated as hedging instruments | Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	25	11
Derivatives not designated as hedging instruments | Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	1	0
Derivatives not designated as hedging instruments | Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	47	33
Derivatives not designated as hedging instruments | Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	1	0
Derivatives not designated as hedging instruments | Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	4,881	3,934
Derivatives not designated as hedging instruments | Foreign currency contracts | Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	23	11
Derivatives not designated as hedging instruments | Foreign currency contracts | Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	1	0
Derivatives not designated as hedging instruments | Foreign currency contracts | Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	47	31
Derivatives not designated as hedging instruments | Foreign currency contracts | Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	1	0
Derivatives not designated as hedging instruments | Other derivatives
Derivatives, Fair Value
Outstanding Gross Notional	117	150
Derivatives not designated as hedging instruments | Other derivatives | Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	2	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	0	2
Derivatives not designated as hedging instruments | Other derivatives | Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	$ 0	$ 0