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Estimates (Schedule of Inventory) (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Inventory, Net [Abstract]    
Natural gas, NGLs and refined products $ 1,658 $ 1,802
Crude oil 258 246
Spare parts and other 562 413
Total inventories $ 2,478 $ 2,461