| 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 |
|---|
| Net Income (Loss) | - | - | - | - | - | - | - | - | -48 |
|---|
| Depreciation, Depletion and Amortization | 4 | 5 | 4 | 1 | 3 | 3 | 3 | 3 | 3 |
|---|
| Share-Based Payment Arrangement, Noncash Expense | 3 | 4 | 3 | 4 | 3 | 2 | 5 | 5 | 5 |
|---|
| Gain On Disposal Of Non-Core Assets | - | - | - | - | - | 36 | 0 | 119 | 0 |
|---|
| Income (Loss) from Equity Method Investments | - | - | - | - | - | - | - | - | -0 |
|---|
| Debt Securities, FV-NI, Gain (Loss) | - | - | - | - | - | - | - | 1 | - |
|---|
| Accretion of asset retirement obligations | 1 | 2 | 2 | 2 | 2 | 1 | 2 | 1 | 2 |
|---|
| Payments for Environmental Liabilities | - | - | - | - | - | - | - | - | 3 |
|---|
| Unrealized Gain (Loss), Foreign Currency Transaction, before Tax | -0 | 0 | 0 | -0 | 1 | -0 | 2 | 0 | 0 |
|---|
| Unrealized Gain (Loss) on Investments | - | - | - | - | - | - | -17 | 15 | - |
|---|
| Realized Investment Gains (Losses) | - | - | - | - | - | - | - | -10 | - |
|---|
| Marketable Security, Realized Gain (Loss) | - | - | - | - | - | - | - | - | 2 |
|---|
| Miscellaneous non-cash income (expenses) | - | - | - | - | -1 | -7 | 1 | 0 | 0 |
|---|
| Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI | - | - | - | - | - | - | - | -1 | -9 |
|---|
| Increase (Decrease) in Inventories | -13 | -0 | 4 | 19 | 6 | 3 | 9 | 0 | -13 |
|---|
| Increase (Decrease) in Accounts and Other Receivables | -2 | 0 | 0 | 0 | -0 | 1 | -2 | 0 | 17 |
|---|
| Increase (Decrease) in Prepaid Expense | 0 | -0 | 1 | -0 | -0 | 0 | 9 | -0 | 3 |
|---|
| Increase (Decrease) in Accounts Payable and Accrued Liabilities | -4 | -1 | -1 | -3 | -3 | 2 | 2 | 3 | -3 |
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| Net Cash Provided by (Used in) Operating Activities, Total | -12 | -10 | -8 | -44 | -32 | -29 | -50 | -15 | -44 |
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| Payments to Acquire Property, Plant, and Equipment | 0 | - | 0 | - | 1 | 1 | 2 | 15 | 22 |
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| Purchase Of Mineral Properties | - | - | - | - | - | - | - | 7 | 7 |
|---|
| Payments to Acquire Intangible Assets | - | - | - | - | - | - | - | - | 2 |
|---|
| Payments to Acquire Marketable Securities | - | - | 26 | - | - | - | 11 | 175 | 237 |
|---|
| Proceeds from Sale and Maturity of Marketable Securities | - | - | 3 | 23 | 4 | 3 | - | 79 | 283 |
|---|
| Purchase Of Investments, Without A Readily Determinable Fair Value | - | - | - | - | - | - | - | 1 | 11 |
|---|
| Disposal On Non-Core Assets, Investing Activities | - | - | - | - | - | 2 | - | 57 | 0 |
|---|
| Payment for Contingent Consideration Liability, Investing Activities | - | - | - | - | - | - | - | - | 17 |
|---|
| Proceeds from Sale and Collection of Notes Receivable | - | - | - | - | - | - | - | 61 | - |
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| Net Cash Provided by (Used in) Investing Activities, Total | -6 | 1 | -20 | 23 | 4 | 3 | -7 | -24 | -13 |
|---|
| Proceeds From Issuance Of Common Stock And Warrants | - | - | - | - | 52 | 106 | 8 | 32 | 17 |
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| Payment, Tax Withholding, Share-Based Payment Arrangement | - | - | 1 | - | 0 | 1 | 1 | 1 | 1 |
|---|
| Proceeds from Stock Options Exercised | 0 | - | 1 | 0 | 0 | 2 | 1 | 1 | 0 |
|---|
| Payment, Tax Withholding, Share-Based Payment Arrangement, Due Upon Exercise Of Award | - | - | - | - | - | 0 | 0 | 2 | 1 |
|---|
| Proceeds from Noncontrolling Interests | 0 | 0 | - | 0 | 0 | 0 | 0 | 0 | - |
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| Net Cash Provided by (Used in) Financing Activities, Total | 22 | 10 | 22 | 20 | 37 | 118 | 8 | 30 | 16 |
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| Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations | - | - | - | - | 0 | 0 | -0 | 0 | -2 |
|---|
| Cash Acquired from Acquisition | - | - | - | - | - | - | - | - | 27 |
|---|
| Restricted Cash And Cash Equivalents, Held-For-Sale | - | - | - | - | - | - | 4 | - | - |
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| Release Of Restricted Cash | - | - | - | - | - | - | - | -4 | - |
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| Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total | - | - | - | - | 8 | 92 | -53 | -5 | -16 |
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| Income Taxes Paid, Net | - | - | - | - | - | - | - | - | 2 |
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| Interest Paid, Including Capitalized Interest, Operating and Investing Activities | - | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
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| Increase (Decrease) In Capital Expenditures Incurred But Not Yet Paid | - | - | - | - | - | - | 0 | -1 | -0 |
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| Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued | - | - | - | - | - | - | - | - | 178 |
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| Noncash Or Part Noncash, Shares Issued For Joint Venture Interests | - | - | - | - | - | - | - | - | 4 |
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| Noncash Or Part Noncash, Shares Issued For Acquisition Of Intangible Assets | - | - | - | - | - | - | - | - | 2 |
|---|
| Noncash Or Part Noncash, Contingent Consideration For Acquisition Of Intangible Assets | - | - | - | - | - | - | - | - | 2 |
|---|
| Stock Issued During Period, Value, Issued for Services | 0 | 0 | 1 | 0 | 0 | 0 | 0 | - | - |
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| Noncash Acquisition Of Convertible Note | - | - | - | - | - | - | - | 59 | - |
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