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Operating Information by Segment and Geographic Area - Other Segment Profit (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | $ 49 | $ 218 | $ 277 | $ 172
NuScale | Disposal Group, Not Discontinued Operations | Fluor Corporation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Entity's interest in partnership or joint venture (percent) | 50.00% |  | 50.00% |
Reportable Segments | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | $ 117 | 276 | $ 429 | 452
Reportable Segments | Other | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | (46) | (5) | (95) | (108)
Reportable Segments | Other | NuScale | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | (40) | (19) | (100) | (71)
Reportable Segments | Other | Stork | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | (6) | 14 | 6 | 25
Reportable Segments | Other | AMECO | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | $ 0 | $ 0 | $ (1) | $ (62)

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