Schedule I - Condensed Financial Information of Registrant - CF (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash Flows from Operating Activities
Net Cash Used in Operating Activities	$ 770	$ 702	$ 787
Cash Flows from Investing Activities
Net Cash Provided by (Used in) Investing Activities	(725)	(523)	1,065
Cash Flows from Financing Activities
Net Cash Provided by Financing Activities	(363)	(124)	(1,510)
Net Change in Cash	(318)	55	342
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	1,051	996	654
Cash, Cash Equivalents and Restricted Cash at End of Period	733	1,051	996
Clearway Energy, Inc.
Cash Flows from Operating Activities
Net Cash Used in Operating Activities	(2)	(31)	(10)
Cash Flows from Investing Activities
Cash advances for notes receivable — affiliate	0	0	(4)
Cash received from notes receivable — affiliate	1	1	3
Net Cash Provided by (Used in) Investing Activities	1	1	(1)
Cash Flows from Financing Activities
Cash received from Clearway Energy LLC for tax-related distributions	1	30	11
Cash received from Clearway Energy LLC for the payment of dividends	194	180	167
Payment of dividends	(194)	(180)	(167)
Net Cash Provided by Financing Activities	1	30	11
Net Change in Cash	0	0	0
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	0	0	0
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 0	$ 0	$ 0

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