v3.25.3
Segment Financial Information - Revenue and Disbursement of Costs and Expenses by Segments (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues $ 3,602 $ 3,427 $ 10,624 $ 10,089
Costs, expenses and other        
Research and development costs 118 126 387 375
Selling and administrative expense 257 282 858 891
Interest expense, net 30 26 90 71
Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 3,602 3,427 10,624 10,089
Costs, expenses and other        
Cost of products/services sold 2,892 2,751 8,488 7,991
Research and development costs 118 126 387 375
Selling and administrative expense 231 262 753 792
Interest expense, net 4 4 13 14
Segment profit (loss) 357 284 983 917
Textron Aviation        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 1,477 1,339 4,206 4,002
Textron Aviation | Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 1,477 1,339 4,206 4,002
Costs, expenses and other        
Cost of products/services sold 1,149 1,050 3,249 3,060
Research and development costs 52 54 162 157
Selling and administrative expense 97 107 309 319
Interest expense, net 0 0 0 0
Segment profit (loss) 179 128 486 466
Bell        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 1,026 929 3,025 2,450
Bell | Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 1,026 929 3,025 2,450
Costs, expenses and other        
Cost of products/services sold 846 747 2,490 1,961
Research and development costs 33 32 110 78
Selling and administrative expense 55 52 163 151
Interest expense, net 0 0 0 0
Segment profit (loss) 92 98 262 260
Textron Systems        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 307 301 924 930
Textron Systems | Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 307 301 924 930
Costs, expenses and other        
Cost of products/services sold 235 226 698 694
Research and development costs 10 10 33 43
Selling and administrative expense 10 26 61 81
Interest expense, net 0 0 0 0
Segment profit (loss) 52 39 132 112
Industrial        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 761 840 2,392 2,646
Industrial | Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 761 840 2,392 2,646
Costs, expenses and other        
Cost of products/services sold 655 723 2,031 2,256
Research and development costs 15 16 49 54
Selling and administrative expense 60 69 197 233
Interest expense, net 0 0 0 0
Segment profit (loss) 31 32 115 103
Textron eAviation        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 5 6 20 22
Textron eAviation | Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 5 6 20 22
Costs, expenses and other        
Cost of products/services sold 7 5 20 20
Research and development costs 8 14 33 43
Selling and administrative expense 5 5 15 13
Interest expense, net 0 0 0 0
Segment profit (loss) (15) (18) (48) (54)
Finance        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 26 12 57 39
Finance | Operating Segment        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Revenues 26 12 57 39
Costs, expenses and other        
Cost of products/services sold 0 0 0 0
Research and development costs 0 0 0 0
Selling and administrative expense 4 3 8 (5)
Interest expense, net 4 4 13 14
Segment profit (loss) $ 18 $ 5 $ 36 $ 30