The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Borrowing Facilities and Long-Term Debt (Details Textuals) (USD $)	9 Months Ended
	Jul. 31, 2011	Jun. 08, 2011	Oct. 31, 2010
Borrowing Facilities, Unsecured (Textuals) [Abstract]
Credit facilities for unsecured borrowings/Revolving credit facility	$ 1,500,000,000
Borrowing Facilities and Long Term Debt (Textuals) [Abstract]
Revolving credit period	4 years
Expiration of revolving credit period	May 2015
Other credit facilities	103,000,000
Outstanding credit facilities	0		0
Unsecured senior notes issued under underwriting agreement	1,750,000,000	1,750,000,000
Redemption price percentage description	101% of the aggregate principal amount of the Notes plus any accrued and unpaid interest
Unsecured Debt [Member]
Borrowing Facilities, Unsecured (Textuals) [Abstract]
Credit facilities for unsecured borrowings/Revolving credit facility	$ 1,600,000,000