QUARTERLY FINANCIAL INFORMATION DISCLOSURE (unaudited) (Details) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | ||||||||||||||||||
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Dec. 31, 2020
USD ($)
$ / shares
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Sep. 27, 2020
USD ($)
$ / shares
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Jun. 28, 2020
USD ($)
$ / shares
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Mar. 29, 2020
USD ($)
$ / shares
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Dec. 31, 2019
USD ($)
$ / shares
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Sep. 29, 2019
USD ($)
$ / shares
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Jun. 30, 2019
USD ($)
$ / shares
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Mar. 31, 2019
USD ($)
$ / shares
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Dec. 31, 2018
$ / shares
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Sep. 30, 2018
$ / shares
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Jul. 01, 2018
$ / shares
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Apr. 01, 2018
$ / shares
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Dec. 31, 2020
USD ($)
$ / shares
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Dec. 31, 2019
USD ($)
$ / shares
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Dec. 31, 2018
USD ($)
$ / shares
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| Effect of Quarterly Events [Line Items] | ||||||||||||||||||||
| Net sales | $ | $ 5,830 | $ 5,118 | $ 3,852 | $ 5,011 | $ 5,578 | $ 5,768 | $ 6,221 | $ 6,004 | $ 19,811 | [1] | $ 23,571 | [1] | $ 23,771 | [1] | ||||||
| Gross Profit | $ | 1,361 | 1,349 | 890 | 1,294 | 1,313 | 1,494 | 1,641 | 1,532 | 4,894 | 5,980 | 5,737 | |||||||||
| Cummins share of net income | $ | $ 501 | $ 501 | $ 276 | $ 511 | $ 300 | $ 622 | $ 675 | $ 663 | $ 1,789 | $ 2,260 | $ 2,141 | |||||||||
| Basic (in dollars per share) | $ 3.39 | $ 3.39 | $ 1.87 | $ 3.42 | $ 1.98 | $ 3.99 | $ 4.29 | $ 4.22 | $ 12.07 | $ 14.54 | $ 13.20 | |||||||||
| Diluted (in dollars per share) | 3.36 | 3.36 | 1.86 | 3.41 | 1.97 | 3.97 | 4.27 | 4.20 | 12.01 | 14.48 | 13.15 | |||||||||
| Cash dividend (in dollars per share) | $ 1.35 | 1.311 | 1.311 | 1.311 | $ 1.311 | 1.311 | 1.14 | 1.14 | $ 1.14 | $ 1.14 | $ 1.08 | $ 1.08 | $ 5.28 | $ 4.90 | $ 4.44 | |||||
| Restructuring actions | $ | $ 119 | $ 0 | $ 119 | $ 0 | ||||||||||||||||
| Restructuring Charges, Net of Tax | $ | $ 90 | $ 90 | ||||||||||||||||||
| Registered Shareholders Total | 2,637 | 2,637 | ||||||||||||||||||
| Common Stock, Par or Stated Value Per Share | $ 2.50 | $ 2.50 | ||||||||||||||||||
| Maximum | ||||||||||||||||||||
| Effect of Quarterly Events [Line Items] | ||||||||||||||||||||
| Sale of Stock, Price Per Share | 244.67 | 215.43 | 184.94 | 180.88 | $ 186.73 | 175.91 | 171.84 | 162.34 | 244.67 | $ 186.73 | ||||||||||
| Minimum | ||||||||||||||||||||
| Effect of Quarterly Events [Line Items] | ||||||||||||||||||||
| Sale of Stock, Price Per Share | $ 203.51 | $ 170.19 | $ 127.30 | $ 101.03 | 151.15 | $ 141.14 | $ 150.48 | $ 130.03 | $ 203.51 | $ 151.15 | ||||||||||
| Restructuring Charges | ||||||||||||||||||||
| Effect of Quarterly Events [Line Items] | ||||||||||||||||||||
| Basic (in dollars per share) | 0.59 | |||||||||||||||||||
| Diluted (in dollars per share) | $ 0.59 | |||||||||||||||||||
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- Definition The total number of registered shareholders at year end. No definition available.
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| X | ||||||||||
- Definition Amount charged net of tax against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations. No definition available.
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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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. No definition available.
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available.
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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