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Contingencies (Details) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 USD ($) party | Dec. 31, 1993
Loss Contingencies [Line Items] |  |
Site Contingency, Names of Other Potentially Responsible Parties | party | 100 |
Litigation Settlement, Expense | $ 115 |
Loss Contingency, Estimate of Possible Loss | 1,700 |
Loss Contingency, Damages Sought, Value | 1,200 |
Loss Contingency, Range of Possible Loss, Portion Not Accrued | 500 |
Environmental Remediation Expense | 6 |
Investment in Trojan |  | 87.00%
Class action damages sought | 260 |
Minimum [Member] |  |
Loss Contingencies [Line Items] |  |
Loss Contingency, Estimate of Possible Loss | $ 1,100 |

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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 The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109237650&loc=d3e13064-110858 Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13296-110859 + Details
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