v3.26.1
Equity (Cash Distributions) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Aug. 19, 2026
May 20, 2026
Mar. 18, 2026
Feb. 19, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
[1]
Distribution Made To Managing Member Or General Partner [Line Items]                
Distribution Made to Limited Liability Company (LLC) Member, Unit Distribution         $ 0.9899 $ 0.9317    
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid   $ 51   $ 48     $ 99 $ 0
Subsequent Event [Member]                
Distribution Made To Managing Member Or General Partner [Line Items]                
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid $ 52              
Sunoco LP                
Distribution Made To Managing Member Or General Partner [Line Items]                
Preferred Stock, Dividends, Per Share, Cash Paid     $ 39.38          
Distribution to IDR Holders | Sunoco LP                
Distribution Made To Managing Member Or General Partner [Line Items]                
Incentive Distribution, Distribution Per Unit   $ 71   $ 60        
Distribution to IDR Holders | Sunoco LP | Subsequent Event [Member]                
Distribution Made To Managing Member Or General Partner [Line Items]                
Incentive Distribution, Distribution Per Unit $ 74              
Common Units [Member] | Sunoco LP                
Distribution Made To Managing Member Or General Partner [Line Items]                
Per Unit Distribution (in dollars per unit)   $ 0.9899   $ 0.9317        
Distributions on Common Units   $ 136   $ 128        
Common Units [Member] | Sunoco LP | Subsequent Event [Member]                
Distribution Made To Managing Member Or General Partner [Line Items]                
Per Unit Distribution (in dollars per unit) $ 1.0023              
Distributions on Common Units $ 137              
Class D Units | Sunoco LP                
Distribution Made To Managing Member Or General Partner [Line Items]                
Distributions on Common Units   $ 51   $ 48        
Class D Units | Sunoco LP | Subsequent Event [Member]                
Distribution Made To Managing Member Or General Partner [Line Items]                
Distributions on Common Units $ 52              
[1] See Note 1 regarding change in reporting entity.