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Estimates (Property, Plant and Equipment) (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross $ 105,996 $ 103,991
Less - Accumulated depreciation (25,685) (22,384)
Property, plant and equipment, net 80,311 81,607
Land and improvements    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross 1,427 1,369
Buildings and improvements (1 to 45 years)    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross 3,546 4,598
Pipelines and equipment (5 to 83 years)    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross 82,353 77,112
Product storage and related facilities (2 to 83 years)    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross 7,274 7,410
Right of way (20 to 83 years)    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross 6,252 5,021
Other (1 to 48 years)    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross 2,739 2,816
Construction work-in-process    
Property, Plant and Equipment, Net [Abstract]    
Property, plant and equipment, gross $ 2,405 $ 5,665