v3.25.3
Revenues - Disaggregation of Revenues (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 31, 2025
Nov. 01, 2024
Oct. 31, 2025
Nov. 01, 2024
Disaggregation of Revenue [Line Items]        
Total revenues $ 1,866 $ 1,976 $ 5,512 $ 5,641
Prime contractor to federal government        
Disaggregation of Revenue [Line Items]        
Total revenues 1,668 1,769 4,907 5,038
Subcontractor to federal government        
Disaggregation of Revenue [Line Items]        
Total revenues 153 166 478 481
Other        
Disaggregation of Revenue [Line Items]        
Total revenues 45 41 127 122
Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 1,439 1,515 4,246 4,366
Defense and Intelligence | Prime contractor to federal government        
Disaggregation of Revenue [Line Items]        
Total revenues 1,316 1,384 3,854 3,976
Defense and Intelligence | Subcontractor to federal government        
Disaggregation of Revenue [Line Items]        
Total revenues 116 125 369 370
Defense and Intelligence | Other        
Disaggregation of Revenue [Line Items]        
Total revenues 7 6 23 20
Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues 427 461 1,266 1,275
Civilian | Prime contractor to federal government        
Disaggregation of Revenue [Line Items]        
Total revenues 352 385 1,053 1,062
Civilian | Subcontractor to federal government        
Disaggregation of Revenue [Line Items]        
Total revenues 37 41 109 111
Civilian | Other        
Disaggregation of Revenue [Line Items]        
Total revenues 38 35 104 102
Cost reimbursement        
Disaggregation of Revenue [Line Items]        
Total revenues 1,163 1,273 3,423 3,533
Cost reimbursement | Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 1,148 1,245 3,375 3,464
Cost reimbursement | Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues 15 28 48 69
Time and materials ("T&M")        
Disaggregation of Revenue [Line Items]        
Total revenues 417 406 1,243 1,249
Time and materials ("T&M") | Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 129 119 387 430
Time and materials ("T&M") | Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues 288 287 856 819
Firm-fixed price ("FFP")        
Disaggregation of Revenue [Line Items]        
Total revenues 286 297 846 859
Firm-fixed price ("FFP") | Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 162 151 484 472
Firm-fixed price ("FFP") | Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues 124 146 362 387
Department of War        
Disaggregation of Revenue [Line Items]        
Total revenues 972 1,005 2,879 2,931
Department of War | Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 970 992 2,872 2,916
Department of War | Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues 2 13 7 15
Intelligence and other federal government agencies        
Disaggregation of Revenue [Line Items]        
Total revenues 849 930 2,506 2,588
Intelligence and other federal government agencies | Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 462 517 1,351 1,430
Intelligence and other federal government agencies | Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues 387 413 1,155 1,158
Commercial, state and local governments and international        
Disaggregation of Revenue [Line Items]        
Total revenues 45 41 127 122
Commercial, state and local governments and international | Defense and Intelligence        
Disaggregation of Revenue [Line Items]        
Total revenues 7 6 23 20
Commercial, state and local governments and international | Civilian        
Disaggregation of Revenue [Line Items]        
Total revenues $ 38 $ 35 $ 104 $ 102