Financing receivables that are 91 days or more past due and still accruing.

No definition available.

Name:	cfsc_FinancingReceivable91DaysPastDueandStillAccruing
Namespace Prefix:	cfsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the period after which collection of future income is considered as not probable.

+ References

No definition available.

+ Details

Name:	cfsc_PeriodAfterWhichCollectionOfFutureIncomeIsConsideredAsNotProbable
Namespace Prefix:	cfsc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

+ Details

Name:	us-gaap_FinancingReceivableNonaccrualInterestIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of financing receivable on nonaccrual status with no allowance for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

+ Details

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

- Definition

Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=cfsc_CustomerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_NorthAmericaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_EMEAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_AsiaPacificMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfsc_MiningMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_LatinAmericaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cfsc_CaterpillarPowerFinanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=cfsc_DealerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Finance Receivables (Details 6) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Finance Receivables (Details 6) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Financing Receivable, Past Due
Period after which collection of future income is considered as not probable			120 days
Customer
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	$ 213		$ 213		$ 184
Amortized Cost, Non-accrual Without an Allowance	21		21		26
Amortized Cost, 91+ Still Accruing	43		43		36
Interest income recognized for finance receivables on non-accrual status	1	$ 1	5	$ 6
Customer \| North America
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	39		39		47
Amortized Cost, Non-accrual Without an Allowance	6		6		9
Amortized Cost, 91+ Still Accruing	15		15		12
Customer \| EAME
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	49		49		18
Amortized Cost, Non-accrual Without an Allowance	1		1		1
Amortized Cost, 91+ Still Accruing	20		20		2
Customer \| Asia/Pacific
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	12		12		19
Amortized Cost, Non-accrual Without an Allowance	0		0		0
Amortized Cost, 91+ Still Accruing	7		7		7
Customer \| Mining
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	23		23		8
Amortized Cost, Non-accrual Without an Allowance	2		2		1
Amortized Cost, 91+ Still Accruing	0		0		14
Customer \| Latin America
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	70		70		52
Amortized Cost, Non-accrual Without an Allowance	0		0		4
Amortized Cost, 91+ Still Accruing	1		1		1
Customer \| Caterpillar Power Finance
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	20		20		40
Amortized Cost, Non-accrual Without an Allowance	12		12		11
Amortized Cost, 91+ Still Accruing	0		0		0
Dealer
Financing Receivable, Past Due
Amortized Cost, 91+ Still Accruing	0		0		0
Interest income recognized for finance receivables on non-accrual status	0	$ 0	0	$ 0
Dealer \| Latin America
Financing Receivable, Past Due
Amortized Cost, Non-accrual With an Allowance	$ 78		$ 78		$ 78