Plan Description (Details) - SIP	12 Months Ended
Dec. 31, 2025 USD ($) year loan h	Dec. 31, 2024 USD ($)
EBP, Description of Plan [Line Items]
Transfers from (to) other plans	$ 17,486,000
Matching percentage	100.00%
Catch-up contribution, minimum age	50 years
Participant compensation matched, percentage	6.00%
Employer contributions receivable	$ 3,034,000	$ 2,785,000
Default investment election, target age \| year	65
Automatic deferral rate, annual increase	1.00%
Forfeited and available to pay administrative expenses	$ 79,000
Maximum borrowing, amount	$ 50,000
Maximum borrowing, to total account, percentage	50.00%
Minimum borrowing, amount	$ 1,000
Number of outstanding loans allowed \| loan	2
General loan, borrowing term	5 years
Prime rate percentage	1.00%
EBP, Qualified Non-Elective Contributions
EBP, Description of Plan [Line Items]
Employer non-elective contribution rate	3.00%
Service period \| h	1,000
Vesting period	3 years
Vesting percentage	100.00%
Employer contributions receivable	$ 2,526,000	$ 2,472,000
EBP, Qualified Non-Elective Contributions \| 401(k) Rail
EBP, Description of Plan [Line Items]
Employer contributions receivable	$ 69,000
Minimum
EBP, Description of Plan [Line Items]
Automatic contribution rate	6.00%
Maximum
EBP, Description of Plan [Line Items]
Automatic contribution rate	15.00%
Caterpillar Inc.
EBP, Description of Plan [Line Items]
Subsidiary ownership percentage by parent	100.00%

EBP, Catch -up Contribution, Minimum Age

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- Definition

Fixed rate annual contribution for eligible participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

No definition available.

+ Details

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- Definition

Company contribution and/ or investment earning percentage vesting to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions, upon completion of minimum service period or attainment of maximum vesting age

+ References

No definition available.

+ Details

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- Definition

Minimum Vesting service period for company contribution and/ or investment earning to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions.

+ References

No definition available.

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- Definition

EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term

+ References

No definition available.

+ Details

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- Definition

EBP, Note Receivable from Participant, Number Of Loans Allowed

+ References

No definition available.

+ Details

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- Definition

Annual increase in percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) until the contribution reaches maximum threshold.

+ References

No definition available.

+ Details

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- Definition

EBP, Participant Loan, Basis Spread On Variable Rate

+ References

No definition available.

+ Details

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- Definition

EBP, Requisite Service Period

+ References

No definition available.

+ Details

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- Definition

EPB, Default Investment Election, Target Age

+ References

No definition available.

+ Details

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- Definition

Subsidiary, Ownership Percentage, Parent

+ References

No definition available.

+ Details

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- Definition

Amount of net asset available for benefit transferred to (from) employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from (to) external plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
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- 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.

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- Definition

Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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- Definition

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

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- Definition

Amount of contribution receivable from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
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- Definition

Amount of decrease in forfeited nonvested account of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) from administrative expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
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- Definition

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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- Definition

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

+ References

+ Details

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- Definition

Amount of minimum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

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- Definition

Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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