CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Loss	$ (231)	$ (63)	$ (14)
Other Comprehensive Loss, net of tax
Unrealized loss on derivatives and changes in accumulated OCI, net of income tax benefit of $(2), $(1) and $(1)	(3)	(4)	(6)
Other comprehensive loss	(3)	(4)	(6)
Comprehensive Loss	(234)	(67)	(20)
Less: Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests	(404)	(151)	(97)
Comprehensive Income Attributable to Clearway Energy, Inc.	$ 170	$ 84	$ 77