CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Revenues
Total operating revenues	$ 1,429	$ 1,371	$ 1,314
Operating Costs and Expenses
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	530	501	473
Depreciation, amortization and accretion	682	627	526
Impairment losses	0	0	12
General and administrative	41	39	36
Transaction and integration costs	16	8	4
Total operating costs and expenses	1,269	1,175	1,051
Operating Income	160	196	263
Other Income (Expense)
Equity in earnings of unconsolidated affiliates	31	35	12
Other income, net	29	48	52
Loss on debt extinguishment	(8)	(5)	(6)
Interest expense	(387)	(307)	(337)
Total other expense, net	(335)	(229)	(279)
Loss Before Income Taxes	(175)	(33)	(16)
Income tax expense (benefit)	56	30	(2)
Net Loss	(231)	(63)	(14)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	(400)	(151)	(93)
Net income attributable to Clearway Energy, Inc.	$ 169	$ 88	$ 79
Earnings Per Share [Abstract]
Weighted average number of common shares outstanding - diluted (in shares)	35	35	35
Common Class A
Other Income (Expense)
Net income attributable to Clearway Energy, Inc.	$ 49	$ 26	$ 23
Earnings Per Share [Abstract]
Weighted average number of shares outstanding - basic (in shares)	35	35	35
Weighted average number of common shares outstanding - diluted (in shares)	35	35	35
Earnings per weighted average common share - basic (in dollars per share)	$ 1.43	$ 0.75	$ 0.67
Earnings per weighted average common share - diluted (in dollars per share)	1.43	0.75	0.67
Dividends per common share (in usd per share)	$ 1.77	$ 1.65	$ 1.54
Common Class C
Other Income (Expense)
Net income attributable to Clearway Energy, Inc.	$ 120	$ 62	$ 56
Earnings Per Share [Abstract]
Weighted average number of shares outstanding - basic (in shares)	84	83	82
Weighted average number of common shares outstanding - diluted (in shares)	84	83	82
Earnings per weighted average common share - basic (in dollars per share)	$ 1.43	$ 0.75	$ 0.67
Earnings per weighted average common share - diluted (in dollars per share)	1.43	0.75	0.67
Dividends per common share (in usd per share)	$ 1.77	$ 1.65	$ 1.54