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Transactions With Total and Total Energies SE - Narrative (Details)
$ / shares in Units, shares in Millions, $ in Billions
1 Months Ended 6 Months Ended
Dec. 31, 2011
$ / shares
shares
Jun. 30, 2011
USD ($)
$ / shares
Jul. 02, 2023
Sep. 26, 2022
member
Sep. 12, 2022
director
Sep. 12, 2022
member
May 24, 2022
Clearway Energy Group              
Related Party Transaction [Line Items]              
Percentage of membership interests acquired in business acquisition             50.00%
Related Party              
Related Party Transaction [Line Items]              
Ownership after sale of stock, percentage     50.20%        
Tender Offer Agreement | Related Party              
Related Party Transaction [Line Items]              
Ownership after sale of stock, percentage   60.00%          
Consideration received in cash tender offer (in dollars per share)   $ 23.25          
Cash tender offer | $   $ 1.4          
Private Placement | Related Party              
Related Party Transaction [Line Items]              
Ownership after sale of stock, percentage 66.00%            
Consideration received in cash tender offer (in dollars per share) $ 8.80            
Number of shares of common stock issued and sold (in shares) | shares 18.6            
September Letter Agreement | Related Party              
Related Party Transaction [Line Items]              
Number of members appointed by GIP       2 2    
September Letter Agreement | Related Party | Director              
Related Party Transaction [Line Items]              
Number of members appointed by GIP         5 2