v3.26.1
Business Segments (Segment Reporting Information by Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 03, 2026
Jul. 04, 2025
Jul. 03, 2026
Jul. 04, 2025
Segment Reporting [Line Items]        
Revenues $ 4,558 $ 4,253 $ 8,958 $ 8,498
Amortization of intangible assets 40 32 70 62
Corporate expense 6 2 (18) (1)
Total operating income 514 571 1,022 1,101
Operating Segments        
Segment Reporting [Line Items]        
Revenues 4,558 4,253 8,958 8,498
Direct labor 1,019 938 2,021 1,897
Amortization of intangible assets 40 32 70 62
Other segment expense 2,927 2,703 5,770 5,404
Segment operating income 572 580 1,097 1,135
Corporate expense        
Segment Reporting [Line Items]        
Corporate expense 58 9 75 34
Intelligence & Digital | Operating Segments        
Segment Reporting [Line Items]        
Revenues 1,499 1,408 3,012 2,816
Direct labor 386 374 786 757
Amortization of intangible assets 7 7 15 12
Other segment expense 964 892 1,923 1,780
Segment operating income 142 135 288 267
Health | Operating Segments        
Segment Reporting [Line Items]        
Revenues 1,086 1,175 2,274 2,363
Direct labor 197 199 397 405
Amortization of intangible assets 3 6 7 12
Other segment expense 632 667 1,332 1,355
Segment operating income 254 303 538 591
Homeland | Operating Segments        
Segment Reporting [Line Items]        
Revenues 1,018 771 1,834 1,541
Direct labor 222 161 400 323
Amortization of intangible assets 19 7 26 14
Other segment expense 685 539 1,283 1,079
Segment operating income 92 64 125 125
Defense | Operating Segments        
Segment Reporting [Line Items]        
Revenues 955 899 1,838 1,778
Direct labor 214 204 438 412
Amortization of intangible assets 11 12 22 24
Other segment expense 646 605 1,232 1,190
Segment operating income $ 84 $ 78 $ 146 $ 152