Finance Receivables Allowance for Loan Losses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Consumer Loan [Member]	Sep. 30, 2013 North America [Member]	Sep. 30, 2013 North America [Member]	Sep. 30, 2013 North America [Member] Consumer Loan [Member]	Dec. 31, 2012 North America [Member] Consumer Loan [Member]	Sep. 30, 2013 International [Member]	Sep. 30, 2013 International [Member]	Sep. 30, 2013 International [Member] Consumer Loan [Member]	Sep. 30, 2013 Post-Acquisition Portfolio [Member] Consumer Loan [Member]	Sep. 30, 2013 Post-Acquisition Portfolio [Member] Consumer Loan [Member]	Sep. 30, 2013 Post-Acquisition Portfolio [Member] North America [Member] Consumer Loan [Member]	Sep. 30, 2012 Post-Acquisition Portfolio [Member] North America [Member] Consumer Loan [Member]	Sep. 30, 2013 Post-Acquisition Portfolio [Member] North America [Member] Consumer Loan [Member]	Sep. 30, 2012 Post-Acquisition Portfolio [Member] North America [Member] Consumer Loan [Member]	Sep. 30, 2013 Post-Acquisition Portfolio [Member] International [Member] Consumer Loan [Member]	Sep. 30, 2013 Post-Acquisition Portfolio [Member] International [Member] Consumer Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 467			$ 453	$ 345			$ 14	$ 423	$ 345	$ 415	$ 249	$ 345	$ 179	$ 8
Provision for Loan, Lease, and Other Losses	117	311			108	283			9	28		116	293	107	78	276	188	9	17
Financing Receivable, Allowance for Credit Losses, Write-downs												(171)	(419)	(153)	(82)	(401)	(186)	(18)	(18)
Financing Receivable, Allowance for Credit Losses, Recovery												99	248	84	46	233	110	15	15
Financing Receivable, Allowance for Credit Losses				467			453	345			14	467	467	453	291	453	291	14	14
Principal Collection and Recoveries on Receivables		$ 5,099	$ 3,050

The cash inflow associated with the proceeds from collection of receivables during the period.

No definition available.

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- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(4)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 11

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.11)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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