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Operating Information by Segment and Geographic Area - Additional Operating Information (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Segment reporting information |  |  |  |  |
Investments | $ 607 |  | $ 607 |  | $ 886
Energy & Chemicals |  |  |  |  |
Segment reporting information |  |  |  |  |
Accounts Receivable, Past Due | 108 |  | 108 |  |
Reportable segments | Energy & Chemicals | Forecast revisions for estimated cost growth for a fixed-price, gas-fired power plant project |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in Forecast Estimate, Increase (Decrease) in Project Cost |  |  |  | $ 67 |
Change In Forecast Estimate Increase Decrease In Project Cost Per Diluted Share |  |  |  | $ 0.47 |
Reportable segments | Mining & Industrial | Nu Scale Power |  |  |  |  |
Segment reporting information |  |  |  |  |
Research and development expense | 14 | $ 18 | 48 | $ 65 |
Reportable segments | Mining & Industrial | Nu Scale Power | Cost-sharing agreement, research and development activities | U.S. Department of Energy | Total cost of revenue |  |  |  |  |
Segment reporting information |  |  |  |  |
Qualified expenses reimbursed | 16 | 15 | 43 | 42 |
Reportable segments | Mining & Industrial | Forecast revisions for estimated cost growth for a fixed-price, gas-fired power plant project |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in Forecast Estimate, Increase (Decrease) in Project Cost |  | $ 125 | $ 135 |  |
Change In Forecast Estimate Increase Decrease In Project Cost Per Diluted Share |  | $ 0.68 | $ 0.96 |  |
Reportable segments | Mining & Industrial | Cost growth [Member] |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in Forecast Estimate, Increase (Decrease) in Project Cost |  | $ 35 |  | $ 177 |
Change In Forecast Estimate Increase Decrease In Project Cost Per Diluted Share |  | $ 0.19 |  | $ 0.96 |
Reportable segments | Mining & Industrial | Late engineering change |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in Forecast Estimate, Increase (Decrease) in Project Cost | $ 55 |  | $ 55 |  |
Change In Forecast Estimate Increase Decrease In Project Cost Per Diluted Share | $ 0.39 |  | $ 0.30 |  |
Reportable segments | Government | Late engineering change |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in Forecast Estimate, Increase (Decrease) in Project Cost | $ 20 |  | $ 253 |  |
Change In Forecast Estimate Increase Decrease In Project Cost Per Diluted Share | $ 0.14 |  | $ 1.80 |  |
United States | Energy & Chemicals |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in cost and schedule impacts, Increase (Decrease) in Project Cost | $ 87 | $ 46 | $ 87 | $ 113 |
Change In Cost and Schedule Impacts Increase Decrease In Project Cost Per Diluted Share | $ 0.50 | $ 0.30 | $ 0.50 | $ 0.77 |
United States | Energy & Chemicals | Forecast Revisions For Estimated Cost Growth On An Offshore Project |  |  |  |  |
Segment reporting information |  |  |  |  |
Pre-Tax Charges , Increase (Decrease) in Project Cost |  |  | $ 240 |  |
Pre Tax Charges Increase Decrease In Project Cost Per Diluted Share |  |  | $ 1.40 |  |
United States | Energy & Chemicals | Award Estimation Costs |  |  |  |  |
Segment reporting information |  |  |  |  |
Change in cost and schedule impacts, Increase (Decrease) in Project Cost | $ 26 |  | $ 26 |  |
Change In Cost and Schedule Impacts Increase Decrease In Project Cost Per Diluted Share |  |  | $ 0.15 |  |
United States | Energy & Chemicals | Close-out matters |  |  |  |  |
Segment reporting information |  |  |  |  |
Pre-Tax Charges , Increase (Decrease) in Project Cost |  |  | $ 31 |  |
Pre Tax Charges Increase Decrease In Project Cost Per Diluted Share |  |  | $ 0.22 |  |

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