| REVENUE RECOGNITION DISAGGREGATION OF REVENUES (Tables)
 | 9 Months Ended | 
| Oct. 03, 2021 | 
|---|
| Disaggregation of Revenue [Line Items] |  | 
| Revenue from External Customers by Geographic Areas | The table below presents our consolidated sales by geographic area. Net sales attributed to geographic areas were based on the location of the customer. 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended |  | Nine months ended |  
| In millions |  | October 3, 2021
 |  | September 27, 2020
 |  | October 3, 2021
 |  | September 27, 2020
 |  
| United States |  | $ | 3,177 |  |  | $ | 2,805 |  |  | $ | 9,500 |  |  | $ | 7,522 |  |  
|  |  |  |  |  |  |  |  |  |  
| China |  | 679 |  |  | 705 |  |  | 2,468 |  |  | 2,037 |  |  
|  |  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  |  |  
| India |  | 294 |  |  | 166 |  |  | 841 |  |  | 406 |  |  
|  |  |  |  |  |  |  |  |  |  
| Other international |  | 1,818 |  |  | 1,442 |  |  | 5,362 |  |  | 4,016 |  |  
| Total net sales |  | $ | 5,968 |  |  | $ | 5,118 |  |  | $ | 18,171 |  |  | $ | 13,981 |  |  
|  |  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  |  |  | 
| Engine |  | 
| Disaggregation of Revenue [Line Items] |  | 
| Revenue from External Customers by Market | Engine segment external sales by market were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended |  | Nine months ended |  
| In millions |  | October 3, 2021
 |  | September 27, 2020
 |  | October 3, 2021
 |  | September 27, 2020
 |  
| Heavy-duty truck |  | $ | 662 |  |  | $ | 486 |  |  | $ | 1,941 |  |  | $ | 1,226 |  |  
| Medium-duty truck and bus |  | 501 |  |  | 389 |  |  | 1,461 |  |  | 1,177 |  |  
| Light-duty automotive |  | 492 |  |  | 502 |  |  | 1,432 |  |  | 975 |  |  
| Total on-highway |  | 1,655 |  |  | 1,377 |  |  | 4,834 |  |  | 3,378 |  |  
| Off-highway |  | 306 |  |  | 240 |  |  | 942 |  |  | 755 |  |  
| Total sales |  | $ | 1,961 |  |  | $ | 1,617 |  |  | $ | 5,776 |  |  | $ | 4,133 |  |  
|  |  |  |  |  |  |  |  |  |  | 
| Distribution |  | 
| Disaggregation of Revenue [Line Items] |  | 
| Revenue from External Customers by Geographic Areas | Distribution segment external sales by region were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended |  | Nine months ended |  
| In millions |  | October 3, 2021
 |  | September 27, 2020
 |  | October 3, 2021
 |  | September 27, 2020
 |  
| North America |  | $ | 1,237 |  |  | $ | 1,126 |  |  | $ | 3,631 |  |  | $ | 3,409 |  |  
| Asia Pacific |  | 236 |  |  | 195 |  |  | 675 |  |  | 577 |  |  
| Europe |  | 143 |  |  | 153 |  |  | 467 |  |  | 424 |  |  
| Russia |  | 86 |  |  | 41 |  |  | 209 |  |  | 126 |  |  
| China |  | 80 |  |  | 74 |  |  | 239 |  |  | 242 |  |  
| Africa and Middle East |  | 74 |  |  | 47 |  |  | 197 |  |  | 136 |  |  
| India |  | 48 |  |  | 42 |  |  | 138 |  |  | 101 |  |  
| Latin America |  | 48 |  |  | 37 |  |  | 136 |  |  | 108 |  |  
| Total sales |  | $ | 1,952 |  |  | $ | 1,715 |  |  | $ | 5,692 |  |  | $ | 5,123 |  |  
|  |  |  |  |  
|  |  |  |  |  |  |  |  |  |  | 
| Revenue from External Customers by Products and Services | Distribution segment external sales by product line were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended |  | Nine months ended |  
| In millions |  | October 3, 2021
 |  | September 27, 2020
 |  | October 3, 2021
 |  | September 27, 2020
 |  
| Parts |  | $ | 796 |  |  | $ | 719 |  |  | $ | 2,313 |  |  | $ | 2,155 |  |  
| Power generation |  | 437 |  |  | 415 |  |  | 1,305 |  |  | 1,166 |  |  
| Engines |  | 376 |  |  | 278 |  |  | 1,058 |  |  | 876 |  |  
| Service |  | 343 |  |  | 303 |  |  | 1,016 |  |  | 926 |  |  
| Total sales |  | $ | 1,952 |  |  | $ | 1,715 |  |  | $ | 5,692 |  |  | $ | 5,123 |  |  
|  |  |  |  |  |  |  |  |  |  | 
| Components |  | 
| Disaggregation of Revenue [Line Items] |  | 
| Revenue from External Customers by Products and Services | Components segment external sales by business were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended |  | Nine months ended |  
| In millions |  | October 3, 2021
 |  | September 27, 2020
 |  | October 3, 2021
 |  | September 27, 2020
 |  
| Emission solutions |  | $ | 699 |  |  | $ | 612 |  |  | $ | 2,466 |  |  | $ | 1,576 |  |  
| Filtration |  | 288 |  |  | 260 |  |  | 892 |  |  | 715 |  |  
| Turbo technologies |  | 177 |  |  | 163 |  |  | 609 |  |  | 463 |  |  
| Automated transmissions |  | 112 |  |  | 90 |  |  | 374 |  |  | 215 |  |  
| Electronics and fuel systems |  | 71 |  |  | 76 |  |  | 286 |  |  | 223 |  |  
| Total sales |  | $ | 1,347 |  |  | $ | 1,201 |  |  | $ | 4,627 |  |  | $ | 3,192 |  |  
|  |  |  |  |  |  |  |  |  |  | 
| Power Systems |  | 
| Disaggregation of Revenue [Line Items] |  | 
| Revenue from External Customers by Products and Services | Power Systems segment external sales by product line were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended |  | Nine months ended |  
| In millions |  | October 3, 2021
 |  | September 27, 2020
 |  | October 3, 2021
 |  | September 27, 2020
 |  
| Power generation |  | $ | 395 |  |  | $ | 334 |  |  | $ | 1,127 |  |  | $ | 827 |  |  
| Industrial |  | 209 |  |  | 167 |  |  | 621 |  |  | 477 |  |  
| Generator technologies |  | 84 |  |  | 66 |  |  | 251 |  |  | 191 |  |  
| Total sales |  | $ | 688 |  |  | $ | 567 |  |  | $ | 1,999 |  |  | $ | 1,495 |  |  
|  |  |  |  |  |  |  |  |  |  |