INTEREST IN MASTER TRUST - Investments in Master Trust (Details) - EBP Plans - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Investments at fair value: | ||
| Total at fair value | $ 7,129,991,825 | $ 6,004,172,957 |
| Investments at contract value: | ||
| Accrued income, expenses and pending trades - net | (366,368) | 44,622 |
| Plan's total interest in the Cummins Inc. Master Retirement Savings Trust | 7,515,707,010 | 6,401,156,422 |
| Cummins Inc. common stock | ||
| Investments at fair value: | ||
| Total at fair value | 1,048,943,101 | 761,820,330 |
| Common/collective trust funds | ||
| Investments at fair value: | ||
| Total at fair value | 5,942,356,197 | 4,880,564,583 |
| Registered investment companies | ||
| Investments at fair value: | ||
| Total at fair value | 138,692,527 | 361,788,044 |
| Synthetic guaranteed investment contract | ||
| Investments at contract value: | ||
| Synthetic guaranteed investment contract | $ 386,081,553 | $ 396,938,843 |