Quarterly report [Sections 13 or 15(d)]

REVENUE RECOGNITION DISAGGREGATION OF REVENUES (Details)

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REVENUE RECOGNITION DISAGGREGATION OF REVENUES (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) $ 8,317 $ 8,456 $ 25,134 $ 25,655
Heavy-duty truck (EBU market)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 540 781 1,921 2,560
Medium-duty truck and bus (EBU market)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 533 806 1,909 2,336
Light-duty automotive (EBU market)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 583 400 1,490 1,292
On-highway (EBU market)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,656 1,987 5,320 6,188
Off-highway (EBU market)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 266 228 804 735
Drivetrain and braking systems [CBU business]        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 916 1,131 3,066 3,618
Emission solutions (CBU business)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 702 759 2,270 2,437
Components and software [CBU business]        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 281 249 888 828
Automated Transmissions (CBU business)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 87 148 327 475
Atmus Filtration Technologies Inc.        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 0 0 0 289
Power Generation (DBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,246 1,088 3,536 2,743
Parts (DBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,014 1,000 3,051 2,985
Service (DBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 494 453 1,349 1,305
Engines (DBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 416 401 1,170 1,259
Power Generation (PSBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 623 499 1,652 1,349
Industrial (PSBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 323 293 905 809
Generator technologies (PSBU product line)        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 180 120 495 350
Engine        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 2,605 2,913 8,275 8,992
Components        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 2,329 2,724 7,704 9,038
Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 3,172 2,952 9,120 8,316
Power Systems        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,996 1,687 5,534 4,665
External Sales | Engine        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,922 2,215 6,124 6,923
External Sales | Components        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,986 2,287 6,551 7,647
External Sales | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 3,170 2,942 9,106 8,292
External Sales | Power Systems        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 1,126 912 3,052 2,508
UNITED STATES        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 4,663 4,825 14,278 14,729
CHINA        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 844 727 2,449 2,197
CHINA | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 121 118 357 346
INDIA        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 447 416 1,288 1,285
INDIA | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 93 77 256 223
OTHER INTERNATIONAL        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 2,363 2,488 7,119 7,444
NORTH AMERICA | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 2,200 1,947 6,373 5,568
ASIA PACIFIC | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 311 342 831 937
EUROPE | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 273 307 865 830
LATIN AMERICA | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) 98 71 231 194
AFRICA AND MIDDLE EAST | Distribution        
Disaggregation of Revenue [Line Items]        
NET SALES (Notes 1 and 2) $ 74 $ 80 $ 193 $ 194