v3.26.1
REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Revenue by External Sales (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Total net sales $ 9,457 $ 8,643 $ 17,855 $ 16,817
China        
Disaggregation of Revenue [Line Items]        
Total net sales 1,074 826 2,074 1,605
India        
Disaggregation of Revenue [Line Items]        
Total net sales 446 415 917 841
Engine        
Disaggregation of Revenue [Line Items]        
Total net sales 2,349 2,162 4,315 4,202
Engine | Total on-highway        
Disaggregation of Revenue [Line Items]        
Total net sales 2,001 1,885 3,625 3,664
Engine | Heavy-duty truck        
Disaggregation of Revenue [Line Items]        
Total net sales 739 727 1,302 1,381
Engine | Medium-duty truck and bus        
Disaggregation of Revenue [Line Items]        
Total net sales 772 676 1,385 1,376
Engine | Light-duty automotive        
Disaggregation of Revenue [Line Items]        
Total net sales 490 482 938 907
Engine | Off-highway        
Disaggregation of Revenue [Line Items]        
Total net sales 348 277 690 538
Components        
Disaggregation of Revenue [Line Items]        
Total net sales 2,431 2,295 4,569 4,565
Components | Drivetrain and braking systems        
Disaggregation of Revenue [Line Items]        
Total net sales 1,119 1,094 2,037 2,150
Components | Emission solutions        
Disaggregation of Revenue [Line Items]        
Total net sales 853 777 1,660 1,568
Components | Components and software        
Disaggregation of Revenue [Line Items]        
Total net sales 335 301 660 607
Components | Automated transmissions        
Disaggregation of Revenue [Line Items]        
Total net sales 124 123 212 240
Distribution        
Disaggregation of Revenue [Line Items]        
Total net sales 3,320 3,034 6,429 5,936
Distribution | North America        
Disaggregation of Revenue [Line Items]        
Total net sales 2,353 2,074 4,521 4,173
Distribution | Asia Pacific        
Disaggregation of Revenue [Line Items]        
Total net sales 319 280 646 520
Distribution | Europe        
Disaggregation of Revenue [Line Items]        
Total net sales 300 323 603 592
Distribution | China        
Disaggregation of Revenue [Line Items]        
Total net sales 130 123 250 236
Distribution | India        
Disaggregation of Revenue [Line Items]        
Total net sales 92 91 107 163
Distribution | Africa and Middle East        
Disaggregation of Revenue [Line Items]        
Total net sales 70 60 126 119
Distribution | Latin America        
Disaggregation of Revenue [Line Items]        
Total net sales 56 83 176 133
Distribution | Power generation        
Disaggregation of Revenue [Line Items]        
Total net sales 1,377 1,200 2,648 2,290
Distribution | Parts        
Disaggregation of Revenue [Line Items]        
Total net sales 1,078 1,011 2,141 2,037
Distribution | Service        
Disaggregation of Revenue [Line Items]        
Total net sales 470 439 903 855
Distribution | Engines        
Disaggregation of Revenue [Line Items]        
Total net sales 395 384 737 754
Power Systems        
Disaggregation of Revenue [Line Items]        
Total net sales 1,217 1,054 2,310 1,926
Power Systems | Power generation        
Disaggregation of Revenue [Line Items]        
Total net sales 744 584 1,384 1,029
Power Systems | Industrial        
Disaggregation of Revenue [Line Items]        
Total net sales 298 298 591 582
Power Systems | Generator technologies        
Disaggregation of Revenue [Line Items]        
Total net sales $ 175 $ 172 $ 335 $ 315