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Inventories Inventory Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Inventory [Line Items]          
Excess of Replacement or Current Costs over Stated LIFO Value $ 6   $ 6    
Inventory valuation adjustments 40 $ (9) (81) $ (168)  
Sunoco LP [Member]          
Inventory [Line Items]          
Inventory, LIFO Reserve $ 40   $ 40   $ 121