v3.26.3
Revenues - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 03, 2026
Sep. 27, 2025
Oct. 03, 2026
Sep. 27, 2025
Disaggregation of Revenue [Line Items]        
Revenues $ 3,751 $ 3,602 $ 11,273 $ 10,624
United States        
Disaggregation of Revenue [Line Items]        
Revenues 2,632 2,540 7,966 7,473
Europe        
Disaggregation of Revenue [Line Items]        
Revenues 385 290 1,103 955
Other international        
Disaggregation of Revenue [Line Items]        
Revenues 734 772 2,204 2,196
Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 2,739 2,577 8,055 7,679
U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 1,012 1,025 3,218 2,945
Textron Aviation        
Disaggregation of Revenue [Line Items]        
Revenues 1,680 1,479 4,709 4,217
Textron Aviation | United States        
Disaggregation of Revenue [Line Items]        
Revenues 1,189 1,038 3,425 3,033
Textron Aviation | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 178 116 433 359
Textron Aviation | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 313 325 851 825
Textron Aviation | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 1,585 1,377 4,437 3,960
Textron Aviation | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 95 102 272 257
Textron Aviation | Aircraft        
Disaggregation of Revenue [Line Items]        
Revenues 1,139 987 3,125 2,735
Textron Aviation | Aftermarket parts and services        
Disaggregation of Revenue [Line Items]        
Revenues 541 492 1,584 1,482
Bell        
Disaggregation of Revenue [Line Items]        
Revenues 933 1,026 3,077 3,025
Bell | United States        
Disaggregation of Revenue [Line Items]        
Revenues 703 822 2,385 2,324
Bell | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 49 16 104 84
Bell | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 181 188 588 617
Bell | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 305 338 952 1,060
Bell | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 628 688 2,125 1,965
Bell | Military aircraft and support programs        
Disaggregation of Revenue [Line Items]        
Revenues 622 681 2,112 1,963
Bell | Commercial helicopters, parts and services        
Disaggregation of Revenue [Line Items]        
Revenues 311 345 965 1,062
Textron Systems        
Disaggregation of Revenue [Line Items]        
Revenues 360 310 1,045 933
Textron Systems | United States        
Disaggregation of Revenue [Line Items]        
Revenues 315 285 927 850
Textron Systems | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 21 9 54 32
Textron Systems | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 24 16 64 51
Textron Systems | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 78 80 236 232
Textron Systems | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 282 230 809 701
Industrial        
Disaggregation of Revenue [Line Items]        
Revenues 765 761 2,399 2,392
Industrial | United States        
Disaggregation of Revenue [Line Items]        
Revenues 422 387 1,219 1,249
Industrial | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 137 149 509 479
Industrial | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 206 225 671 664
Industrial | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 758 756 2,387 2,370
Industrial | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 7 5 12 22
Industrial | Fuel systems and functional components        
Disaggregation of Revenue [Line Items]        
Revenues 448 470 1,434 1,403
Industrial | Specialized vehicles        
Disaggregation of Revenue [Line Items]        
Revenues 317 291 965 989
Finance        
Disaggregation of Revenue [Line Items]        
Revenues 13 26 43 57
Finance | United States        
Disaggregation of Revenue [Line Items]        
Revenues 3 8 10 17
Finance | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 3 1
Finance | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 10 18 30 39
Finance | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 13 26 43 57
Finance | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues $ 0 $ 0 $ 0 $ 0