v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Class of Stock [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 333-203369  
Entity Registrant Name Clearway Energy LLC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 32-0407370  
Entity Address, Address Line One 300 Carnegie Center, Suite 300  
Entity Address, City or Town Princeton  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 08540  
City Area Code 609  
Local Phone Number 608-1525  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0001637757  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Common Class B    
Class of Stock [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   42,738,750
Common Class C    
Class of Stock [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   121,174,960
Common Class D    
Class of Stock [Line Items]    
Entity Common Stock, Shares Outstanding (in shares)   41,361,142