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Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment, Net [Abstract]    
Land $ 284 $ 207
Buildings and improvements 818 652
Plant and equipment 9,355 8,687
Other 629 557
Property, Plant and Equipment, Gross 11,086 10,103
Less: Accumulated depreciation (4,134) (3,710)
Property, plant and equipment, net, before construction in progress 6,952 6,393
Construction in progress 654 527
Property, plant and equipment, net $ 7,606 $ 6,920