Annual report of employee stock purchase, savings and similar plans

FAIR VALUE MEASUREMENTS - Assets Measured at Fair Value on a Recurring Basis (Details)

v3.26.1
FAIR VALUE MEASUREMENTS - Assets Measured at Fair Value on a Recurring Basis (Details) - EBP Plans - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  $ 7,129,991,825 $ 6,004,172,957
Fair Value, Inputs, Level 1, Level 2, and Level 3    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  1,187,635,628 1,123,608,374
Level 1     
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  1,187,635,628 1,123,608,374
Registered investment companies    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  138,692,527 361,788,044
Registered investment companies | Fair Value, Inputs, Level 1, Level 2, and Level 3    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  138,692,527 361,788,044
Registered investment companies | Level 1     
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  138,692,527 361,788,044
Cummins Inc. common stock    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  1,048,943,101 761,820,330
Cummins Inc. common stock | Fair Value, Inputs, Level 1, Level 2, and Level 3    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  1,048,943,101 761,820,330
Cummins Inc. common stock | Level 1     
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  1,048,943,101 761,820,330
Common/collective trust funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  5,942,356,197 4,880,564,583
Common/collective trust funds | NAV    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at fair value  $ 5,942,356,197 $ 4,880,564,583