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Commitments and Contingencies - Narrative (Details)	9 Months Ended
	Sep. 30, 2022 counterparty motion	Oct. 31, 2021 facility	Jun. 30, 2019 facility	Apr. 30, 2019 case	Feb. 28, 2019 case
Loss Contingencies
Number of facilities | facility		2
Sierra Club Et Al V. Midwest Generation LLC
Loss Contingencies
Number of facilities | facility			4
Direct Energy vs. Stanley, Forte, Schafer and Lane
Loss Contingencies
Pending lawsuits | case				4
Direct Energy vs. Burk and Dickson
Loss Contingencies
Pending lawsuits | case					2
Winter Storm Uri claims vs. Company as power generator
Loss Contingencies
Pending lawsuits | counterparty	161
Winter Storm Uri, claims vs. Company as retail electric provider
Loss Contingencies
Pending lawsuits | counterparty	27
Motions filed to dismiss claims | motion	5

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- Definition

Loss Contingency, Number of Motions Filed to Dismiss Claims

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Number of pending claims pertaining to a loss contingency.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

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