| Schedule of Segment Reporting Information by Segment |
The following table summarizes business segment information for the periods presented: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended October 3, 2025 | | (in millions) | | National Security & Digital | | Health & Civil | | Commercial & International | | Defense Systems | | Total | | Revenues | | $ | 2,015 | | | $ | 1,301 | | | $ | 571 | | | $ | 582 | | | $ | 4,469 | | | Less: | | | | | | | | | | | | Direct labor | | 510 | | | 236 | | | 109 | | | 113 | | | 968 | | | Amortization of intangible assets | | 8 | | | 6 | | | 7 | | | 13 | | | 34 | | | Other segment expense | | 1,306 | | | 731 | | | 417 | | | 419 | | | 2,873 | | | Segment operating income | | $ | 191 | | | $ | 328 | | | $ | 38 | | | $ | 37 | | | $ | 594 | | | | | | | | | | | | | | Corporate expense | | | | | | | | | | 59 | | | Total operating income | | | | | | | | | | $ | 535 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 27, 2024 | | (in millions) | | National Security & Digital | | Health & Civil | | Commercial & International | | Defense Systems | | Total | | Revenues | | $ | 1,865 | | | $ | 1,225 | | | $ | 578 | | | $ | 522 | | | $ | 4,190 | | | Less: | | | | | | | | | | | Direct labor | | 483 | | | 232 | | | 103 | | | 103 | | | 921 | | | Amortization of intangible assets | | 6 | | | 8 | | | 7 | | | 16 | | | 37 | | | Other segment expense | | 1,189 | | | 698 | | | 427 | | | 366 | | | 2,680 | | Segment operating income | | $ | 187 | | | $ | 287 | | | $ | 41 | | | $ | 37 | | | $ | 552 | | | | | | | | | | | | | Corporate expense | | | | | | | | | | 36 | | | Total operating income | | | | | | | | | | $ | 516 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended October 3, 2025 | | (in millions) | | National Security & Digital | | Health & Civil | | Commercial & International | | Defense Systems | | Total | | Revenues | | $ | 5,765 | | | $ | 3,864 | | | $ | 1,705 | | | $ | 1,633 | | | $ | 12,967 | | | Less: | | | | | | | | | | | | Direct labor | | 1,503 | | | 715 | | | 317 | | | 330 | | | 2,865 | | | Amortization of intangible assets | | 20 | | | 18 | | | 21 | | | 37 | | | 96 | | | Other segment expense | | 3,678 | | | 2,193 | | | 1,252 | | | 1,154 | | | 8,277 | | | Segment operating income | | $ | 564 | | | $ | 938 | | | $ | 115 | | | $ | 112 | | | $ | 1,729 | | | | | | | | | | | | | | Corporate expense | | | | | | | | | | 93 | | | Total operating income | | | | | | | | | | $ | 1,636 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 27, 2024 | | (in millions) | | National Security & Digital | | Health & Civil | | Commercial & International | | Defense Systems | | Total | | Revenues | | $ | 5,471 | | | $ | 3,687 | | | $ | 1,648 | | | $ | 1,491 | | | $ | 12,297 | | | Less: | | | | | | | | | | | Direct labor | | 1,454 | | | 711 | | | 306 | | | 307 | | | 2,778 | | | Amortization of intangible assets | | 17 | | | 21 | | | 22 | | | 50 | | | 110 | | | Other segment expense | | 3,455 | | | 2,139 | | | 1,256 | | | 1,042 | | | 7,892 | | | Segment operating income | | $ | 545 | | | $ | 816 | | | $ | 64 | | | $ | 92 | | | $ | 1,517 | | | | | | | | | | | | | Corporate expense | | | | | | | | | | 111 | | | Total operating income | | | | | | | | | | $ | 1,406 | |
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