v3.26.3
Segment Financial Data - Schedule of Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 26, 2026
Sep. 27, 2025
Sep. 26, 2026
Sep. 27, 2025
Segment Reporting [Line Items]        
Total segment profit $ 1,161 $ 1,151 $ 3,251 $ 3,257
Amortization of acquisition-related intangibles (53) (21) (141) (99)
Stock compensation expense (28) (16) (89) (62)
Transaction costs (18) (74) (127) (89)
Environmental expense (16) (231) (53) (324)
Interest (expense) income, net (187) 5 (404) 14
Other, net 60 (294) (100) (375)
Income before taxes 901 741 2,079 2,674
Operating Segments | Electronic Solutions        
Segment Reporting [Line Items]        
Total segment profit 564 510 1,533 1,395
Operating Segments | Engines & Power Systems        
Segment Reporting [Line Items]        
Total segment profit 250 299 705 748
Operating Segments | Control Systems        
Segment Reporting [Line Items]        
Total segment profit 382 376 1,098 1,184
Corporate and All Other        
Segment Reporting [Line Items]        
Total segment profit (35) (34) (85) (70)
Corporate Nonsegment        
Segment Reporting [Line Items]        
Amortization of acquisition-related intangibles (28) (3) (72) (37)
Stock compensation expense (28) (16) (89) (62)
Transaction costs (18) (143) (540) (160)
Environmental expense (19) (258) (61) (363)
Honeywell trademark license expense (54) 0 (54) 0
Pension income (expense) 76 (1) 72 (4)
Interest (expense) income, net (187) 5 (404) 14
Other, net $ (2) $ 6 $ (24) $ 29