Finance Receivables (Details 7) $ in Millions	12 Months Ended
Dec. 31, 2021 USD ($) contracts	Dec. 31, 2020 USD ($) contracts	Dec. 31, 2019 USD ($) contracts
Caterpillar Purchased Receivables
Finance receivables modified as TDRs
Number of Contracts \| contracts	0	0	0
Dealer
Finance receivables modified as TDRs
Number of Contracts \| contracts	0	0	0
Customer
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	$ 62	$ 220	$ 209
Post-TDR Amortized Cost	52	220	204
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	29	49	15
Customer \| North America
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	6	13	11
Post-TDR Amortized Cost	6	13	11
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	1	8	5
Customer \| EAME
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	3	0	17
Post-TDR Amortized Cost	3	0	17
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	0	10	0
Customer \| Asia/Pacific
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	4	12	0
Post-TDR Amortized Cost	4	12	0
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	6	2	0
Customer \| Mining
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	11	35	8
Post-TDR Amortized Cost	5	35	8
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	0	10	0
Customer \| Latin America
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	12	45	5
Post-TDR Amortized Cost	12	45	3
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	15	1	0
Customer \| Caterpillar Power Finance
Finance receivables modified as TDRs
Pre-TDR Amortized Cost	26	115	168
Post-TDR Amortized Cost	22	115	165
TDRs with a payment default which had been modified within twelve months prior to the default date
Post-TDR Amortized Cost	$ 7	$ 18	$ 10

Loan and finance lease receivables modified as TDRs

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- Definition

Loans and leases modified as TDRs within previous twelve months that subsequently defaulted

+ References

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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