v3.25.1
Related Party Transactions - Narrative (Details)
$ in Millions, $ in Millions
1 Months Ended 3 Months Ended
Feb. 28, 2025
USD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Feb. 28, 2025
CAD ($)
Dec. 31, 2024
USD ($)
Related Party Transaction [Line Items]          
Investments in related party notes   $ 330      
Proceeds from the issuance of related party notes   330      
Related party interest expense   127 $ 95    
PAGP | Notes Due In June 2035 at 5.75 Percent | General Partner          
Related Party Transaction [Line Items]          
Related party note receivable $ 330     $ 473  
Related party note payable $ 330     $ 473  
Related party note payable and receivable interest rate (as a percent) 5.75%        
Investments in related party notes $ 330        
Proceeds from the issuance of related party notes $ 330        
PAGP | Related Party Promissory Notes | General Partner          
Related Party Transaction [Line Items]          
Related party note receivable   1,278     $ 948
Related party note payable   1,278     948
Related party interest receivable   8     27
Related party interest payable   8     $ 27
Related party interest expense   20 8    
Related party interest income   $ 20 $ 8