v3.26.1
SEGMENT INFORMATION - Schedule of Segment Financial Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Total sales $ 3,179 $ 2,706 $ 6,129 $ 5,316  
Cost of sales (2,018) (1,768) (3,907) (3,478)  
Gross profit 1,161 938 2,222 1,838  
Selling, general & administrative expenses (400) (347) (801) (654)  
Engineering expenses (70) (50) (126) (96)  
Amortization expense (91) (69) (178) (142)  
Income (loss) from operations 600 472 1,117 946  
Interest expense and other, net (82) (22) (130) (70)  
Income before income taxes 518 450 987 876  
Depreciation and amortization 143 117 282 237  
Capital expenditures 62 39 108 83  
Segment assets 23,128 20,391 23,128 20,391 $ 22,069
Intersegment eliminations          
Segment Reporting [Line Items]          
Total sales (21) (25) (45) (45)  
Corporate Activities and Elimination          
Segment Reporting [Line Items]          
Total sales 0 0 0 0  
Cost of sales 0 0 0 0  
Gross profit 0 0 0 0  
Selling, general & administrative expenses (50) (52) (104) (88)  
Engineering expenses 0 0 0 0  
Amortization expense 0 0 0 0  
Income (loss) from operations (50) (52) (104) (88)  
Interest expense and other, net (82) (22) (130) (70)  
Income before income taxes (132) (74) (234) (158)  
Depreciation and amortization 4 4 7 7  
Capital expenditures 2 2 3 5  
Segment assets 1,633 2,596 1,633 2,596  
Freight Segment          
Segment Reporting [Line Items]          
Total sales 2,243 1,919 4,358 3,820  
Freight Segment | Operating Segments          
Segment Reporting [Line Items]          
Total sales 2,243 1,919 4,358 3,820  
Cost of sales (1,389) (1,222) (2,716) (2,438)  
Gross profit $ 854 $ 697 $ 1,642 $ 1,382  
Gross margin 38.10% 36.30% 37.70% 36.20%  
Selling, general & administrative expenses $ (219) $ (181) $ (438) $ (345)  
Engineering expenses (55) (38) (98) (74)  
Amortization expense (76) (63) (152) (128)  
Income (loss) from operations 504 415 954 835  
Interest expense and other, net 0 0 0 0  
Income before income taxes 504 415 954 835  
Depreciation and amortization 112 95 224 192  
Capital expenditures 34 25 61 56  
Segment assets 15,917 13,390 15,917 13,390  
Freight Segment | Intersegment eliminations          
Segment Reporting [Line Items]          
Total sales 11 13 25 24  
Transit Segment          
Segment Reporting [Line Items]          
Total sales 936 787 1,771 1,496  
Transit Segment | Operating Segments          
Segment Reporting [Line Items]          
Total sales 936 787 1,771 1,496  
Cost of sales (629) (546) (1,191) (1,040)  
Gross profit $ 307 $ 241 $ 580 $ 456  
Gross margin 32.80% 30.70% 32.70% 30.50%  
Selling, general & administrative expenses $ (131) $ (114) $ (259) $ (221)  
Engineering expenses (15) (12) (28) (22)  
Amortization expense (15) (6) (26) (14)  
Income (loss) from operations 146 109 267 199  
Interest expense and other, net 0 0 0 0  
Income before income taxes 146 109 267 199  
Depreciation and amortization 27 18 51 38  
Capital expenditures 26 12 44 22  
Segment assets 5,578 4,405 5,578 4,405  
Transit Segment | Intersegment eliminations          
Segment Reporting [Line Items]          
Total sales $ 10 $ 12 $ 20 $ 21