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Revenue (Schedule of Revenue by Geographic Destination) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jan. 02, 2026 | Jan. 03, 2025 | Dec. 29, 2023
Disaggregation of Revenue [Line Items] |  |  |
Revenues | $ 7,786 | $ 7,710 | $ 6,956
United States |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 4,244 | 4,045 | 3,617
Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,584 | 1,894 | 1,816
Middle East |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 790 | 731 | 528
Australia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 548 | 526 | 496
Africa |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 253 | 201 | 176
Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 142 | 152 | 169
Other countries |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 225 | 161 | 154
U.S. Government Defense and Intelligence Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 3,370 | 3,292 | 3,039
U.S. Government Federal Civilian Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,057 | 1,112 | 1,052
International Government Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 905 | 891 | 791
Commercial and Infrastructure Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 2,454 | 2,415 | 2,074
MTS |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 5,581 | 5,555 | 5,119
MTS | United States |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 3,772 | 3,503 | 3,096
MTS | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,313 | 1,595 | 1,569
MTS | Middle East |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 123 | 110 | 105
MTS | Australia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 219 | 202 | 204
MTS | Africa |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 77 | 70 | 70
MTS | Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 20 | 18 | 17
MTS | Other countries |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 57 | 57 | 58
MTS | U.S. Government Defense and Intelligence Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 3,370 | 3,292 | 3,039
MTS | U.S. Government Federal Civilian Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,057 | 1,112 | 1,052
MTS | International Government Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 905 | 891 | 791
MTS | Commercial and Infrastructure Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 249 | 260 | 237
MTS | Science & Space |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,126 | 1,188 | 1,127
MTS | Defense & Intel |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 3,178 | 2,887 | 2,497
MTS | Readiness & Sustainment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,277 | 1,480 | 1,495
STS |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 2,205 | 2,155 | 1,837
STS | United States |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 472 | 542 | 521
STS | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 271 | 299 | 247
STS | Middle East |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 667 | 621 | 423
STS | Australia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 329 | 324 | 292
STS | Africa |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 176 | 131 | 106
STS | Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 122 | 134 | 152
STS | Other countries |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 168 | 104 | 96
STS | U.S. Government Defense and Intelligence Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 0 | 0 | 0
STS | U.S. Government Federal Civilian Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 0 | 0 | 0
STS | International Government Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 0 | 0 | 0
STS | Commercial and Infrastructure Clients |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | $ 2,205 | $ 2,155 | $ 1,837

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