This element represents the guaranteed residual value of outstanding finance receivables.

No definition available.

Name:	cfsc_GuaranteedResidualValue
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the aggregate amount of finance receivables due as of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesAggregateAmounts
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of finance receivables due after year five following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesDueAfterYearFive
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of finance receivables due within the next twelve months following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesDueInNextTwelveMonths
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of finance receivables due in year five following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesDueInYearFive
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of finance receivables due in year four following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesDueInYearFour
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of finance receivables due in year three following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesDueInYearThree
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the amount of finance receivables due in year two following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

Name:	cfsc_OutstandingFinanceReceivablesDueInYearTwo
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the unguaranteed residual value of outstanding finance receivables.

+ References

No definition available.

+ Details

Name:	cfsc_UnguaranteedResidualValue
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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=35738203&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for 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 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 20

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6378556&loc=d3e10152-111534

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Article 9

+ Details

Name:	us-gaap_LoansAndLeasesReceivableDeferredIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ 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=28367877&loc=d3e4428-111522

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cfsc_RetailFinanceLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cfsc_RetailInstallmentContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cfsc_RetailNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cfsc_WholesaleFinanceLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cfsc_WholesaleInstallmentContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=cfsc_WholesaleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Financing Activities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	$ 13,591
Amounts due in 2016	6,495
Amounts due in 2017	4,569
Amounts due in 2018	2,252
Amounts due in 2019	1,253
Amounts due thereafter	1,117
Total amounts due	29,277
Guaranteed residual value	421cfsc_GuaranteedResidualValue
Unguaranteed residual value	660cfsc_UnguaranteedResidualValue
Less: Unearned income	(883)	(976)	(998)
Total gross finance receivables	29,475	29,066	28,568
Less: Allowance for credit losses	(401)	(387)	(429)	(371)
Total net finance receivables	29,074	28,679	28,139
Retail Installment Sale Contracts
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	2,420
Amounts due in 2016	1,828
Amounts due in 2017	1,246
Amounts due in 2018	623
Amounts due in 2019	189
Amounts due thereafter	13
Total amounts due	6,319
Guaranteed residual value	0
Unguaranteed residual value	0
Less: Unearned income	(113)
Total gross finance receivables	6,206
Wholesale Installment Sale Contracts
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	88
Amounts due in 2016	17
Amounts due in 2017	8
Amounts due in 2018	3
Amounts due in 2019	0
Amounts due thereafter	0
Total amounts due	116
Guaranteed residual value	0
Unguaranteed residual value	0
Less: Unearned income	0
Total gross finance receivables	116
Retail Finance Leases
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	2,999
Amounts due in 2016	2,096
Amounts due in 2017	1,184
Amounts due in 2018	524
Amounts due in 2019	213
Amounts due thereafter	132
Total amounts due	7,148
Guaranteed residual value	352
Unguaranteed residual value	636
Less: Unearned income	(639)
Total gross finance receivables	7,497
Wholesale Finance Leases
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	67
Amounts due in 2016	54
Amounts due in 2017	33
Amounts due in 2018	16
Amounts due in 2019	3
Amounts due thereafter	2
Total amounts due	175
Guaranteed residual value	69
Unguaranteed residual value	24
Less: Unearned income	(20)
Total gross finance receivables	248
Retail Notes
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	3,984
Amounts due in 2016	2,238
Amounts due in 2017	1,896
Amounts due in 2018	1,069
Amounts due in 2019	848
Amounts due thereafter	970
Total amounts due	11,005
Guaranteed residual value	0
Unguaranteed residual value	0
Less: Unearned income	(87)
Total gross finance receivables	10,918
Wholesale Notes
Accounts, Notes, Loans and Financing Receivable
Amounts due in 2015	4,033
Amounts due in 2016	262
Amounts due in 2017	202
Amounts due in 2018	17
Amounts due in 2019	0
Amounts due thereafter	0
Total amounts due	4,514
Guaranteed residual value	0
Unguaranteed residual value	0
Less: Unearned income	(24)
Total gross finance receivables	$ 4,490