Financial Instruments (Detail 3) - USD ($) $ in Millions	Jan. 31, 2016	Oct. 31, 2015
Financial Instruments
Derivative, Collateral, Obligation to Return Cash	$ 80	$ 9
Financial Collateral	65
Derivatives, Fair Value
Total derivatives, gross notional amount	17,857	23,162
Derivative asset, fair value	278	258
Derivative liability, fair value	245	304
Collateralized arrangements in net liability position	79	138
Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	221	210
Other Non-Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	57	48
Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	165	202
Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	80	102
Derivatives designated as hedging instruments
Derivatives, Fair Value
Total derivatives, gross notional amount	12,881	14,034
Derivatives designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	204	172
Derivatives designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	57	47
Derivatives designated as hedging instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	135	165
Derivatives designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	56	79
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts
Derivatives, Fair Value
Total derivatives, gross notional amount	2,000	3,175
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset		1
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Non-Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	52	37
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts
Derivatives, Fair Value
Total derivatives, gross notional amount	10,881	10,859
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	204	171
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	5	10
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	135	165
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	56	79
Derivatives not designated as hedging instruments
Derivatives, Fair Value
Total derivatives, gross notional amount	4,976	9,128
Derivatives not designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	17	38
Derivatives not designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset		1
Derivatives not designated as hedging instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	30	37
Derivatives not designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	24	23
Derivatives not designated as hedging instruments \| Foreign currency contracts
Derivatives, Fair Value
Total derivatives, gross notional amount	4,841	8,955
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset	17	33
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset		1
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	26	37
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	24	23
Derivatives not designated as hedging instruments \| Other derivatives
Derivatives, Fair Value
Total derivatives, gross notional amount	135	173
Derivatives not designated as hedging instruments \| Other derivatives \| Other Current Assets
Derivatives, Fair Value
Derivative Asset, Fair Value Gross Asset		$ 5
Derivatives not designated as hedging instruments \| Other derivatives \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liability, Fair Value Gross Liability	$ 4

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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