Next 5% Contributed EBP, Next 5 Percent Contributed [Member] EBP, Next 5 Percent Contributed Allocation of Master Trust Assets and Transactions EBP, Master Trust [Policy Text Block] EIN Entity Tax Identification Number Rollovers EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Maximum Maximum [Member] Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP Plans EBP Plans [Member] EBP Plans Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Maximum borrowing, amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount CUMMINS STOCK FAIR VALUE MEASUREMENTS EBP, Investment, Fair Value and NAV [Text Block] BNY Mellon Walter Scott International Fund BNY Mellon Walter Scott International Fund [Member] BNY Mellon Walter Scott International Fund Participant loan, maturity period EBP, Note Receivable From Participant, Maturity Period EBP, Note Receivable From Participant, Maturity Period Sprucegrove International Fund Sprucegrove International Fund [Member] Sprucegrove International Fund Level 1  Fair Value, Inputs, Level 1 [Member] EBP, Investment, Fair Value and NAV [Abstract] EBP, Investment, Fair Value and NAV [Abstract] ASSETS EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Additions  EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Payment of Benefits EBP, Payment to Participant [Policy Text Block] Fund transfers with an affiliate plan EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan EBP, Master Trust [Line Items] EBP, Master Trust [Line Items] Fair value EBP, Asset Held for Investment, Plan Interest in Master Trust, Current Value Benefit payments, maximum age for distribution EBP, Benefit Payments, Maximum Age For Distribution EBP, Benefit Payments, Maximum Age For Distribution Amendment Flag Amendment Flag Employee EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Plan's total interest in the Cummins Inc. Master Retirement Savings Trust EBP, Investment, Plan Interest in Master Trust, Fair and Contract Value Northern Trust Collective Aggregate Bond Index Fund Northern Trust Collective Aggregate Bond Index Fund [Member] Northern Trust Collective Aggregate Bond Index Fund Number of shares (in shares) EBP, Investment, Number of Shares EBP, Description of Plan and Accounting Change [Abstract] Master Trust's Investment in Common Stock Assets Measured at Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] Earnest Partners Multiple Investment Trust Earnest Partners Multiple Investment Trust [Member] Earnest Partners Multiple Investment Trust EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type Maximum annual compensation to total compensation, percentage EBP, Participant Contribution, Pre-Tax and After-Tax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Pre-Tax and After-Tax, Maximum Annual Compensation to Total Compensation, Percentage Investments [Domain] Investments [Domain] EBP, Master Trust [Abstract] Synthetic guaranteed investment contract EBP, Investment, Plan Interest in Master Trust, Contract Value Use of Estimates EBP, Use of Estimate [Policy Text Block] SCHEDULE H, LINE 4i - SCHEDULE OF ASSETS (HELD AT END OF YEAR) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Synthetic guaranteed investment contract EBP, Synthetic Investment Contract [Member] Minimum Minimum [Member] Aristotle Collective Trust Investment Trust Small/Mid Capital Equity Aristotle Collective Trust investment Trust Small/Mid Capital Equity [Member] Aristotle Collective Trust investment Trust Small/Mid Capital Equity Interest on notes receivable from participants  EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Investment Type [Axis] Investment Type [Axis] Benefit payments, term for distribution installments EBP, Benefit Payments, Term For Distribution Installments EBP, Benefit Payments, Term For Distribution Installments Plan interest in Cummins Inc. Master Retirement Savings Trust investment gain Net realized and unrealized gains and losses on investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Interest and dividend income EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Northern Trust Collective ACWI Ex-US Fund Northern Trust Collective ACWI Ex-US Fund [Member] Northern Trust Collective ACWI Ex-US Fund Plan Number EBP, Plan Number Capital Group Growth Fund of America Trust Fund Capital Group Growth Fund of America Trust Fund [Member] Capital Group Growth Fund of America Trust Fund EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] DESCRIPTION OF THE PLAN EBP, Description of Plan [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Cummins Inc. common stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] EPB 030 EBP 030 [Member] EBP 030 - Cummins Retirement and Savings Plan for Certain Collectively Bargained Employees EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Vanguard Extended Market Index Vanguard Extended Market Index [Member] Vanguard Extended Market Index Net Investment Income of Master Trust EBP, Nonparticipant-Directed Investment [Table Text Block] Total additions EBP, Change in Net Asset Available for Benefit, Increase Northern Trust Collective Short Term Investment Fund Northern Trust Collective Short Term Investment Fund [Member] Northern Trust Collective Short Term Investment Fund Northern Trust Collective S&P 500 Index Fund Northern Trust Collective S&P 500 Index [Member] Northern Trust Collective S&P 500 Index Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] Document Information [Line Items] Document Information [Line Items] Aristotle Collective Investment Trust Fund Aristotle Collective Investment Trust Fund [Member] Aristotle Collective Investment Trust Fund INTEREST IN MASTER TRUST EBP, Master Trust [Text Block] Participant compensation matched, percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] EBP, Tax Status [Table] EBP, Tax Status [Table] Net change in net assets available for benefits  EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Accrued income, expenses and pending trades - net EBP, Accrued Income, Expenses and Pending Trades, Net EBP, Accrued Income, Expenses and Pending Trades, Net RELATED PARTY TRANSACTIONS EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Employer contributions receivable  EBP, Employer Contribution, Receivable At fair value: Investments at fair value:  EBP, Investment, Fair Value [Abstract] Benefits paid to participants  EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Total at fair value Investments at fair value  EBP, Investment, Plan Interest in Master Trust, Fair Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Participant loan, cost EBP, Asset Held for Investment, Participant Loan, Cost EBP, Asset Held for Investment, Participant Loan, Cost EBP 020 EBP 020 [Member] EBP 020 - Cummins Retirement and Savings Plan At contract value: Investments at contract value:  EBP, Investment, Contract Value [Abstract] EBP, Tax Status [Abstract] Registered investment companies Hedge Funds [Member] Requisite service period EBP, Requisite Service Period EBP, Requisite Service Period Administrative Expenses EBP, Expense [Policy Text Block] Participant loan, current value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Investments EBP, Investment [Policy Text Block] EBP, Master Trust [Table] EBP, Master Trust [Table] Employee contributions receivable EBP, Participant Contribution, Receivable Fair Value, Inputs, Level 1, Level 2, and Level 3 Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Document Type Document Type Entity Central Index Key Entity Central Index Key Participant loan, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate Investments EBP, Investment, Fair and Contract Value [Abstract] PIMCO Total Return Fund PIMCO Total Return Fund [Member] PIMCO Total Return Fund Common/collective trust funds Common Collective Trust [Member] Plan's interest in net assets of the Cummins Inc. Master Retirement Savings Trust (Note 3): EBP, Net Asset Available for Benefit [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Vanguard Target Retirement Trusts Vanguard Target Retirement Trusts [Member] Vanguard Target Retirement Trusts Deductions  EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Notes receivable from participants  EBP, Note Receivable from Participant Monthly administrative fee, percentage of account balance EBP, Administrative Fee Expense, Monthly Percentage of Account Balance EBP, Administrative Fee Expense, Monthly Percentage of Account Balance Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] First 1% Contributed EBP, First 1 Percent Contributed [Member] EBP, First 1 Percent Contributed SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Investments in Master Trust EBP, Master Trust [Table Text Block] TAX STATUS EBP, Tax Status [Text Block] Maximum borrowing, to total account, percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Maximum administrative fee expense EBP, Administrative Fee Expense, Maximum Amount EBP, Administrative Fee Expense, Maximum Amount Document Information [Table] Document Information [Table] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Net investment gain EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Redemption Notice Restrictions EBP, Fair Value, Investment, NAV, Redemption, Notice Period EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Administrative expenses  EBP, Change in Net Asset Available for Benefit, (Increase) Decrease from Administrative Expense EBP, Change in Net Asset Available for Benefit, (Increase) Decrease from Administrative Expense Net assets available for benefits  Net assets available for benefits, beginning of year  Net assets available for benefits, end of year  EBP, Net Asset Available for Benefit Entity [Domain] Entity [Domain] Loomis Sayles Large Growth Fund Loomis Sayles Large Growth Fund [Member] Loomis Sayles Large Growth Fund Contributions:  EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Participant loan, maturity EBP, Asset Held for Investment, Participant Loan, Maturity EBP, Asset Held for Investment, Participant Loan, Maturity Basis spread on variable rate EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Matching percentage EBP, Employer Contribution, Matching Percentage NAV Fair Value Measured at Net Asset Value Per Share [Member] EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items]