| Dec 31,
2016 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Revenue from Contract with Customer, Excluding Assessed Tax | - | - | - | - | - | - | - | - | 78 |
|---|
| Cost of Revenue | 35 | 19 | 15 | 4 | - | 2 | 8 | 18 | 56 |
|---|
| Development, Permitting And Land Holding | - | - | - | - | 4 | 11 | 9 | 16 | 14 |
|---|
| Standby Costs | - | - | - | - | 4 | 9 | 13 | 7 | 7 |
|---|
| Accretion of asset retirement obligations | 1 | 2 | 2 | 2 | 2 | 1 | 2 | 1 | 2 |
|---|
| Selling, general and administration | - | - | - | - | - | - | 25 | 28 | 37 |
|---|
| Business Combination, Acquisition Related Costs | - | - | - | - | - | - | - | - | 10 |
|---|
| Costs and Expenses | - | - | - | - | - | - | - | - | 126 |
|---|
| Operating Income (Loss), Total | -39 | -28 | -21 | -41 | -25 | -35 | -45 | -32 | -48 |
|---|
| Gain On Disposal Of Non-Core Assets | - | - | - | - | - | 36 | 0 | 119 | 0 |
|---|
| Income (Loss) from Equity Method Investments | - | - | - | - | - | - | - | - | -0 |
|---|
| Other Nonoperating Income (Expense) | - | - | - | 4 | -2 | 1 | -15 | 13 | -1 |
|---|
| Nonoperating Income (Expense), Total | - | - | - | - | - | - | -15 | 132 | -1 |
|---|
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total | - | - | - | - | - | - | - | 100 | -48 |
|---|
| Income Tax Expense (Benefit) | - | - | - | - | - | - | - | 0 | -0 |
|---|
| Net Income (Loss) Attributable to Parent, Total | - | - | - | - | - | - | - | - | -48 |
|---|
| Net Income (Loss) Attributable to Noncontrolling Interest | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -0 |
|---|
| Net Income (Loss) | -40 | -28 | -25 | -38 | -28 | 1 | -60 | 100 | -48 |
|---|
| Earnings Per Share, Basic | - | - | - | - | - | 0.01 | -0.38 | 0.63 | -0.28 |
|---|
| Earnings Per Share, Diluted | - | - | - | - | - | 0.01 | -0.38 | 0.62 | -0.28 |
|---|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | -1 | -1 | 2 | -1 | -1 | -0 | -4 | - | -4 |
|---|
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total | -0 | -1 | 2 | -1 | -1 | -0 | -4 | - | -4 |
|---|
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total | -40 | -29 | -24 | -39 | -29 | 1 | -64 | 100 | -52 |
|---|
| Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest | -0 | -0 | -0 | -0 | 0 | 0 | 0 | 0 | 0 |
|---|
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | -40 | -29 | -24 | -39 | -28 | 1 | -64 | 100 | -52 |
|---|