Financial Instruments (Details 4) (USD $)	12 Months Ended
Oct. 31, 2011	Oct. 31, 2010
Effect of derivative instruments not designated as hedging instruments on earnings
Gain (Loss) recognized in income on derivatives not designated as hedges	$ (104,000,000)	$ (750,000,000)
Fair value and carrying value of debt
Fair value, short- and long-term debt	31,100,000,000	22,500,000,000
Carrying value, short- and long-term debt	30,600,000,000	22,300,000,000
Interest rate contracts \| Interest and other, net
Effect of fair value hedges on earnings
Gain (Loss) recognized in income on derivative, fair value hedges	(119,000,000)	316,000,000
Gain (Loss) recognized in income on related hedged item, fair value hedges	128,000,000	(299,000,000)
Effect of derivative instruments not designated as hedging instruments on earnings
Gain (Loss) recognized in income on derivatives not designated as hedges	(6,000,000)	6,000,000
Foreign exchange contracts \| Interest and other, net
Effect of derivative instruments not designated as hedging instruments on earnings
Gain (Loss) recognized in income on derivatives not designated as hedges	(117,000,000)	(764,000,000)
Other derivatives \| Interest and other, net
Effect of derivative instruments not designated as hedging instruments on earnings
Gain (Loss) recognized in income on derivatives not designated as hedges	19,000,000	8,000,000
Cash flow hedges
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	(374,000,000)	369,000,000
Gain (Loss) Reclassified from Accumulated OCI Into Income (Effective Portion)	(658,000,000)	431,000,000
Gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	4,000,000	9,000,000
Gain (loss) expected to be reclassified from Accumulated OCI into earnings in next 12 months	(45,000,000)
Cash flow hedges \| Foreign exchange contracts \| Net revenue
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	(278,000,000)	273,000,000
Gain (Loss) Reclassified from Accumulated OCI Into Income (Effective Portion)	(616,000,000)	325,000,000
Cash flow hedges \| Foreign exchange contracts \| Cost of products
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	41,000,000	50,000,000
Gain (Loss) Reclassified from Accumulated OCI Into Income (Effective Portion)	38,000,000	80,000,000
Cash flow hedges \| Foreign exchange contracts \| Other operating expenses
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	2,000,000	1,000,000
Gain (Loss) Reclassified from Accumulated OCI Into Income (Effective Portion)	4,000,000
Cash flow hedges \| Foreign exchange contracts \| Interest and other, net
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	(116,000,000)	20,000,000
Gain (Loss) Reclassified from Accumulated OCI Into Income (Effective Portion)	(91,000,000)
Cash flow hedges \| Foreign exchange contracts - joint venture \| Net revenue
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	(23,000,000)	25,000,000
Gain (Loss) Reclassified from Accumulated OCI Into Income (Effective Portion)	7,000,000	26,000,000
Cash flow hedges \| Foreign exchange contracts - joint venture \| Interest and other, net
Effect of cash flow hedges on earnings
Gain (loss) recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)	4,000,000	9,000,000
Net investment hedges \| Foreign exchange contracts \| Interest and other, net
Effect of cash flow hedges on earnings
Gain (Loss) recognized in Other Comprehensive Income ("OCI") on derivative (effective portion)	$ (52,000,000)	$ (82,000,000)

Estimated fair value of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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