Financing Receivables (Details) (USD $)	12 Months Ended
	Oct. 31, 2011 segments		Oct. 31, 2010		Oct. 31, 2009
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, by class, number of portfolio segments	2
Loans and leases receivable, gross, carrying amount	$ 2,947,000,000		$ 2,976,000,000
Amounts due from sales of receivables	0		53,000,000
Less: Allowance for doubtful accounts	(34,000,000)		(61,000,000)
Finance receivables, net	2,913,000,000		2,915,000,000
Less: Current portion, net	(2,198,000,000)	[1]	(1,770,000,000)	[1]
Noncurrent portion, net	715,000,000		1,145,000,000
Proceeds from issuance of securitized debt	4,500,000,000		1,500,000,000		346,000,000
Financial Services [Member]
Financing Receivable, Recorded Investment [Line Items]
On-balance sheet assets, net of intercompany balances	3,500,000,000		3,300,000,000
TRAC Funding Facility [Member]
Key Economic Assumptions [Abstract]
Unutilized funding	9,000,000		78,000,000
Funding facility collateral, retail accounts	174,000,000		54,000,000
Funding facility collateral, cash equivalents	33,000,000		21,000,000
Retained interest in off-balance sheet securitizations			53,000,000
Retail [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross, carrying amount	1,613,000,000		1,917,000,000
Key Economic Assumptions [Abstract]
Discount rate			7.30%
Estimated credit losses			0.00%
Payment speed (percent of portfolio per month)			88.50%
Retail [Member] | Minimum [Member]
Financing Receivable, Recorded Investment [Line Items]
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Percent Adverse Change in Assumption			10.00%
Retail [Member] | Maximum [Member]
Financing Receivable, Recorded Investment [Line Items]
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Percent Adverse Change in Assumption			20.00%
Wholesale [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable, gross, carrying amount	1,334,000,000		1,006,000,000
Wholesale [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Financial Services [Member]
Key Economic Assumptions [Abstract]
Facility	1,100,000,000		1,100,000,000
Wholesale [Member] | Variable Funding Notes [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Financial Services [Member]
Key Economic Assumptions [Abstract]
Facility	500,000,000		500,000,000
Unutilized funding	170,000,000		500,000,000
Wholesale [Member] | Investor Notes, Maturing October 2012 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Financial Services [Member]
Key Economic Assumptions [Abstract]
Facility	350,000,000		350,000,000
Wholesale [Member] | Investor Notes, Maturing January 2012 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Financial Services [Member]
Key Economic Assumptions [Abstract]
Facility	250,000,000		250,000,000
Borrowings Secured By Operating and Finance Leases [Member] | TRAC Funding Facility [Member] | Financial Services [Member]
Key Economic Assumptions [Abstract]
Facility	100,000,000
Retained Interest in Securitized Receivables	0
Excess Sellers Interests [Member]
Financing Receivable, Recorded Investment [Line Items]
Amounts due from sales of receivables			32,000,000
Interest-Only-Strip [Member]
Financing Receivable, Recorded Investment [Line Items]
Amounts due from sales of receivables			0
Restricted Cash Reserves [Member]
Financing Receivable, Recorded Investment [Line Items]
Amounts due from sales of receivables			$ 21,000,000

[1] The current portion of finance receivables is computed based on contractual maturities. Actual cash collections typically vary from the contractual cash flows because of prepayments, extensions, delinquencies, credit losses, and renewals.