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Nature of Business (Details)	9 Months Ended
	Sep. 30, 2025 state GW
Nature of Business [Line Items]
Power generation capacity, gigawatts (over)	12.7
Number of states | state	27
Clearway Energy, Inc. | Clearway Energy LLC
Nature of Business [Line Items]
Ownership interest (as a percentage)	58.30%
Clearway Energy, Inc. | CEG
Nature of Business [Line Items]
Voting interest (as a percentage)	54.90%
Clearway Energy, Inc. | Public Shareholders
Nature of Business [Line Items]
Voting interest (as a percentage)	45.10%
Clearway Energy LLC | CEG
Nature of Business [Line Items]
Ownership interest (as a percentage)	41.70%
Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind
Nature of Business [Line Items]
Power generation capacity, gigawatts (over)	9.9
Generational Facilities and District Energy Systems
Nature of Business [Line Items]
Power generation capacity, gigawatts (over)	2.8

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

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