v3.25.2
BUSINESS SEGMENT INFORMATION - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 27, 2025
Jun. 28, 2024
Jun. 27, 2025
Jun. 28, 2024
Disaggregation of Revenue [Line Items]        
Revenue $ 5,426 $ 5,299 $ 10,558 $ 10,510
CS | United States        
Disaggregation of Revenue [Line Items]        
Revenue 903 886 1,747 1,811
CS | International        
Disaggregation of Revenue [Line Items]        
Revenue 456 438 952 793
CS | Fixed-price        
Disaggregation of Revenue [Line Items]        
Revenue 1,158 1,118 2,319 2,183
CS | Cost-type        
Disaggregation of Revenue [Line Items]        
Revenue 201 206 380 421
CS | Intersegment        
Disaggregation of Revenue [Line Items]        
Revenue (17) (22) (29) (36)
CS | Operating segments        
Disaggregation of Revenue [Line Items]        
Revenue 1,376 1,346 2,728 2,640
IMS | United States        
Disaggregation of Revenue [Line Items]        
Revenue 1,234 1,221 2,381 2,387
IMS | International        
Disaggregation of Revenue [Line Items]        
Revenue 366 437 798 887
IMS | Fixed-price        
Disaggregation of Revenue [Line Items]        
Revenue 1,248 1,304 2,503 2,549
IMS | Cost-type        
Disaggregation of Revenue [Line Items]        
Revenue 352 354 676 725
IMS | Intersegment        
Disaggregation of Revenue [Line Items]        
Revenue (22) (13) (35) (24)
IMS | Operating segments        
Disaggregation of Revenue [Line Items]        
Revenue 1,622 1,671 3,214 3,298
SAS | United States        
Disaggregation of Revenue [Line Items]        
Revenue 1,567 1,488 2,943 2,995
SAS | International        
Disaggregation of Revenue [Line Items]        
Revenue 207 206 425 435
SAS | Fixed-price        
Disaggregation of Revenue [Line Items]        
Revenue 1,195 1,072 2,189 2,180
SAS | Cost-type        
Disaggregation of Revenue [Line Items]        
Revenue 579 622 1,179 1,250
SAS | Intersegment        
Disaggregation of Revenue [Line Items]        
Revenue (13) (13) (30) (28)
SAS | Operating segments        
Disaggregation of Revenue [Line Items]        
Revenue 1,787 1,707 3,398 3,458
AR | United States        
Disaggregation of Revenue [Line Items]        
Revenue 597 613 1,206 1,177
AR | International        
Disaggregation of Revenue [Line Items]        
Revenue 96 10 106 25
AR | Fixed-price        
Disaggregation of Revenue [Line Items]        
Revenue 450 380 842 715
AR | Cost-type        
Disaggregation of Revenue [Line Items]        
Revenue 243 243 470 487
AR | Intersegment        
Disaggregation of Revenue [Line Items]        
Revenue (5) (10) (15) (15)
AR | Operating segments        
Disaggregation of Revenue [Line Items]        
Revenue 698 633 1,327 1,217
Prime contractor | CS        
Disaggregation of Revenue [Line Items]        
Revenue 1,032 915 2,027 1,828
Prime contractor | IMS        
Disaggregation of Revenue [Line Items]        
Revenue 1,171 1,084 2,220 2,140
Prime contractor | SAS        
Disaggregation of Revenue [Line Items]        
Revenue 1,108 1,076 2,116 2,184
Prime contractor | AR        
Disaggregation of Revenue [Line Items]        
Revenue 161 168 300 331
Subcontractor | CS        
Disaggregation of Revenue [Line Items]        
Revenue 327 409 672 776
Subcontractor | IMS        
Disaggregation of Revenue [Line Items]        
Revenue 429 574 959 1,134
Subcontractor | SAS        
Disaggregation of Revenue [Line Items]        
Revenue 666 618 1,252 1,246
Subcontractor | AR        
Disaggregation of Revenue [Line Items]        
Revenue $ 532 $ 455 $ 1,012 $ 871