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Contingencies (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 USD ($) name | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 1993
Loss Contingencies [Line Items] |  |  |  |
Proceeds from Insurance Settlement, Investing Activities | $ 0 | $ 120 | $ 0 |
Loss Contingency, Damages Sought, Value | $ 1,200 |  |  |
Site Contingency, Names of Other Potentially Responsible Parties | name | 100 |  |  |
Litigation Settlement, Expense | $ 115 |  |  |
Loss Contingency, Range of Possible Loss, Maximum | 1,700 |  |  |
Loss Contingency, Range of Possible Loss, Portion Not Accrued | 500 |  |  |
Payments for Environmental Liabilities | 6 |  |  |
investment in Trojan |  |  |  | 87.00%
Class action damages sought | $ 260 |  |  |

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- Definition The portion of the Company's remaining investment in its Trojan plant that the OPUC allowed the Company to recover. + References No definition available. + Details
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- Definition Number Of Names Of Other Potentially Responsible Parties + References No definition available. + Details
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