Annual report [Section 13 and 15(d), not S-K Item 405]

INVESTMENTS IN EQUITY INVESTEES (Details 1) Investments in and Earnings from

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INVESTMENTS IN EQUITY INVESTEES (Details 1) Investments in and Earnings from
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
hp
l
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Equity, royalty and interest income from investees      
Investments and advances to equity method investees $ 2,133 $ 1,889  
Investment account representing cumulative undistributed income in equity investees 960    
Dividends from the unconsolidated equity investees 299 308 $ 257
Equity, royalty and interest income from investees 469 395 483
Equity Method Investment, Other than Temporary Impairment   17  
Total Joint Venture Contribution to Date 412    
Total Remaining Joint Venture Contribution $ 418    
Minimum      
Equity, royalty and interest income from investees      
Ownership percentage 20.00%    
Maximum      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Royalty and interest income      
Equity, royalty and interest income from investees      
Equity, royalty and interest income from investees $ 105 99 144
Amplify Cell Technologies, LLC      
Equity, royalty and interest income from investees      
Ownership percentage 30.00%    
Investments and advances to equity method investees $ 359 187  
Komatsu Manufacturing Alliances      
Equity, royalty and interest income from investees      
Investments and advances to equity method investees $ 321 322  
Komatsu Manufacturing Alliances | Minimum      
Equity, royalty and interest income from investees      
Ownership percentage 20.00%    
Komatsu Manufacturing Alliances | Maximum      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Beijing Foton Cummins Engine Company      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Investments and advances to equity method investees $ 220 185  
Equity, royalty and interest income from investees $ 64 42 47
Beijing Foton Cummins Engine Company (Light-Duty) | Minimum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 2.5    
Beijing Foton Cummins Engine Company (Light-Duty) | Maximum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 4.5    
Beijing Foton Cummins Engine Company (Heavy-Duty) | Minimum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 7.0    
Beijing Foton Cummins Engine Company (Heavy-Duty) | Maximum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 14.5    
Sistemas Automotrices de Mexico S.A. de C.V.      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Investments and advances to equity method investees $ 134 150  
Dongfeng Cummins Engine Company Ltd      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Investments and advances to equity method investees $ 148 128  
Equity, royalty and interest income from investees $ 70 66 65
Dongfeng Cummins Engine Company Ltd | Minimum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 2.5    
Power of mechanical engines (in horsepower) | hp 80    
Dongfeng Cummins Engine Company Ltd | Maximum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 14.5    
Power of mechanical engines (in horsepower) | hp 770    
Automated Axles Limited      
Equity, royalty and interest income from investees      
Ownership percentage 36.00%    
Investments and advances to equity method investees $ 120 123  
Chongqing Cummins Engine Company Ltd      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Investments and advances to equity method investees $ 140 120  
Equity, royalty and interest income from investees $ 89 60 36
Tata Cummins Ltd      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Investments and advances to equity method investees $ 115 96  
Equity, royalty and interest income from investees $ 33 31 29
Tata Cummins Ltd | Minimum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 3.8    
Power of mechanical engines (in horsepower) | hp 75    
Tata Cummins Ltd | Maximum      
Equity, royalty and interest income from investees      
Capacity of mechanical engines (in liters) | l 8.9    
Power of mechanical engines (in horsepower) | hp 400    
Cummins Scania X P I Manufacturing LLC      
Equity, royalty and interest income from investees      
Ownership percentage 50.00%    
Investments and advances to equity method investees $ 91 88  
Freios Master      
Equity, royalty and interest income from investees      
Ownership percentage 49.00%    
Investments and advances to equity method investees $ 79 78  
Other Distributors and Manufacturers      
Equity, royalty and interest income from investees      
Investments and advances to equity method investees 406 412  
Manufacturing - All other manufacturers      
Equity, royalty and interest income from investees      
Equity, royalty and interest income from investees 29 25 91
Komatsu Cummins Chile Ltda      
Equity, royalty and interest income from investees      
Equity, royalty and interest income from investees 54 55 55
All other distributors      
Equity, royalty and interest income from investees      
Equity, royalty and interest income from investees 25 17 16
Cummins' Share of Equity Earnings      
Equity, royalty and interest income from investees      
Equity, royalty and interest income from investees $ 364 $ 296 $ 339
Battery Joint Venture Commitment      
Equity, royalty and interest income from investees      
Ownership percentage     30.00%
Partners Investment Ownership Percentage     10.00%