Nature of Business (Details)			6 Months Ended
	May 01, 2026 shares	Apr. 29, 2026 shares	Jun. 30, 2026 state GW
Nature of Business [Line Items]
Power generation capacity, gigawatts (over)			13.9
Number of states | state			27
Common Class C
Nature of Business [Line Items]
Shares converted (in shares) | shares	1	1
Clearway Energy LLC | Common Class C
Nature of Business [Line Items]
Shares converted (in shares) | shares		1
Clearway Energy, Inc. | Clearway Energy LLC
Nature of Business [Line Items]
Ownership interest (as a percentage)			59.03%
Clearway Energy, Inc. | CEG
Nature of Business [Line Items]
Voting interest (as a percentage)			54.88%
Clearway Energy, Inc. | Public Shareholders
Nature of Business [Line Items]
Voting interest (as a percentage)			45.12%
Clearway Energy LLC | CEG
Nature of Business [Line Items]
Ownership interest (as a percentage)			40.97%
Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind
Nature of Business [Line Items]
Power generation capacity, gigawatts (over)			11.1
Generational Facilities and District Energy Systems
Nature of Business [Line Items]
Power generation capacity, gigawatts (over)			2.8