Allowance for Doubtful Accounts - Aging Analysis (Details) (USD $) In Millions, unless otherwise specified	Oct. 31, 2012
Finance Receivables, Current	$ 2,091
30-90 days past due	73
Over 90 days past due	12
Total finance receivables	2,176
Retail Portfolio [Member]
Finance Receivables, Current	965
30-90 days past due	72
Over 90 days past due	11
Total finance receivables	1,048
Wholesale Portfolio [Member]
Finance Receivables, Current	1,126
30-90 days past due	1
Over 90 days past due	1
Total finance receivables	$ 1,128

'Reflects carrying amount of all categories of loans and leases held in portfolio, net of unearned income and the allowance for losses on loans and leases, due from customers, clients, lessees, borrowers, or others within one year of the balance sheet date (or the normal operating cycle, whichever is longer).

No definition available.

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- Definition

Financing Receivables Recorded Investment 30 To 90 Days Past Due

+ References

No definition available.

+ Details

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- Definition

Financing receivables that are equal to or greater than 90 days past due.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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