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Operating Information by Segment and Geographic Area - Other Segment Profit (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | $ 94 | $ 106 | $ (47) | $ 201
Fluor Corporation | NuScale | Disposal Group, Not Discontinued Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Entity's interest in partnership or joint venture (percent) | 56.00% |  | 56.00% |
Reportable Segments | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | $ 191 | 108 | $ 176 | 223
Reportable Segments | Other | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | (14) | 3 | (104) | (11)
Reportable Segments | Other | NuScale | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | (23) | (8) | (52) | (29)
Reportable Segments | Other | Stork | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | 9 | 8 | 10 | 12
Reportable Segments | Other | AMECO | Continuing Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total segment profit | $ 0 | $ 3 | $ (62) | $ 6

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