v3.26.1
Operating Information by Segment and Geographic Area - Schedule of Operating Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Total revenue $ 4,329 $ 3,978 $ 7,991 $ 7,959
Total segment profit 135 (26) 226 65
G&A (41) (52) (103) (88)
Gain on sale of CFHI 0 0 124 0
Foreign currency gain (loss) (3) (30) 12 (44)
Interest income (expense), net 21 17 36 34
Earnings (loss) attributable to NCI 9 (22) 15 (13)
Earnings (loss) before taxes 156 (9) 262 99
Operating Segments        
Segment Reporting [Line Items]        
Total revenue 4,329 3,978 7,991 7,959
Total cost of revenue (4,150) (3,922) (7,798) (7,762)
Total segment profit 170 78 178 210
Operating Segments | Urban Solutions        
Segment Reporting [Line Items]        
Total revenue 2,904 2,070 5,341 4,227
Total cost of revenue (2,858) (2,069) (5,284) (4,150)
Total segment profit 38 29 44 99
Operating Segments | Energy Solutions        
Segment Reporting [Line Items]        
Total revenue 709 1,143 1,412 2,349
Total cost of revenue (620) (1,126) (1,250) (2,284)
Total segment profit 88 15 161 63
Operating Segments | Mission Solutions        
Segment Reporting [Line Items]        
Total revenue 716 762 1,238 1,358
Total cost of revenue (672) (723) (1,263) (1,311)
Total segment profit 44 35 (26) 40
Operating Segments | Other        
Segment Reporting [Line Items]        
Total revenue 0 3 0 25
Total cost of revenue 0 (4) (1) (17)
Total segment profit 0 (1) (1) 8
Consolidation, Eliminations        
Segment Reporting [Line Items]        
Total revenue $ 53 $ 61 $ 107 $ 120