v3.25.3
Revenues - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Disaggregation of Revenue [Line Items]        
Revenues $ 3,602 $ 3,427 $ 10,624 $ 10,089
United States        
Disaggregation of Revenue [Line Items]        
Revenues 2,540 2,430 7,473 7,256
Europe        
Disaggregation of Revenue [Line Items]        
Revenues 290 277 955 883
Other international        
Disaggregation of Revenue [Line Items]        
Revenues 772 720 2,196 1,950
Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 2,577 2,534 7,679 7,545
U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 1,025 893 2,945 2,544
Textron Aviation        
Disaggregation of Revenue [Line Items]        
Revenues 1,477 1,339 4,206 4,002
Textron Aviation | United States        
Disaggregation of Revenue [Line Items]        
Revenues 1,037 1,002 3,028 3,099
Textron Aviation | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 115 99 354 252
Textron Aviation | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 325 238 824 651
Textron Aviation | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 1,375 1,259 3,949 3,757
Textron Aviation | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 102 80 257 245
Textron Aviation | Aircraft        
Disaggregation of Revenue [Line Items]        
Revenues 985 869 2,724 2,576
Textron Aviation | Aftermarket parts and services        
Disaggregation of Revenue [Line Items]        
Revenues 492 470 1,482 1,426
Bell        
Disaggregation of Revenue [Line Items]        
Revenues 1,026 929 3,025 2,450
Bell | United States        
Disaggregation of Revenue [Line Items]        
Revenues 822 693 2,324 1,891
Bell | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 16 23 84 60
Bell | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 188 213 617 499
Bell | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 338 356 1,060 883
Bell | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 688 573 1,965 1,567
Bell | Military aircraft and support programs        
Disaggregation of Revenue [Line Items]        
Revenues 681 553 1,963 1,532
Bell | Commercial helicopters, parts and services        
Disaggregation of Revenue [Line Items]        
Revenues 345 376 1,062 918
Textron Systems        
Disaggregation of Revenue [Line Items]        
Revenues 307 301 924 930
Textron Systems | United States        
Disaggregation of Revenue [Line Items]        
Revenues 283 273 845 830
Textron Systems | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 9 10 31 35
Textron Systems | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 15 18 48 65
Textron Systems | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 77 67 223 218
Textron Systems | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 230 234 701 712
Industrial        
Disaggregation of Revenue [Line Items]        
Revenues 761 840 2,392 2,646
Industrial | United States        
Disaggregation of Revenue [Line Items]        
Revenues 387 452 1,249 1,409
Industrial | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 149 144 479 525
Industrial | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 225 244 664 712
Industrial | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 756 834 2,370 2,626
Industrial | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 5 6 22 20
Industrial | Fuel systems and functional components        
Disaggregation of Revenue [Line Items]        
Revenues 470 452 1,403 1,432
Industrial | Specialized vehicles        
Disaggregation of Revenue [Line Items]        
Revenues 291 388 989 1,214
Textron eAviation        
Disaggregation of Revenue [Line Items]        
Revenues 5 6 20 22
Textron eAviation | United States        
Disaggregation of Revenue [Line Items]        
Revenues 3 5 10 14
Textron eAviation | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 1 1 6 6
Textron eAviation | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 1 0 4 2
Textron eAviation | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 5 6 20 22
Textron eAviation | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 0 0
Finance        
Disaggregation of Revenue [Line Items]        
Revenues 26 12 57 39
Finance | United States        
Disaggregation of Revenue [Line Items]        
Revenues 8 5 17 13
Finance | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 1 5
Finance | Other international        
Disaggregation of Revenue [Line Items]        
Revenues 18 7 39 21
Finance | Commercial        
Disaggregation of Revenue [Line Items]        
Revenues 26 12 57 39
Finance | U.S. Government        
Disaggregation of Revenue [Line Items]        
Revenues $ 0 $ 0 $ 0 $ 0