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Revenue Revenue Contract Liabilities (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Contract with Customer, Liability $ 573 $ 573 $ 615 $ 459
Additions 794 815    
Revenue Recognized (836) (688)    
Deferred Revenue, Period Increase (Decrease)   $ (13)    
Sunoco LP [Member]        
Contract assets 239   200  
Accounts receivable from contracts with customers $ 1,079   $ 834