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Property, Plant And Equipment (Narrative) (Details) - USD ($)
$ in Millions
1 Months Ended 2 Months Ended 4 Months Ended 6 Months Ended
Jul. 31, 2022
Jun. 30, 2021
Apr. 30, 2021
Jun. 30, 2022
Dec. 31, 2021
Mar. 31, 2021
Property, Plant and Equipment [Line Items]            
Property, plant and equipment       $ 11,024 $ 9,707  
Capital expenditures       1,088    
Capital expenditures incurred but not yet paid       250    
Subsequent Event [Member]            
Property, Plant and Equipment [Line Items]            
Proceeds from sale of property $ 70          
Successor [Member]            
Property, Plant and Equipment [Line Items]            
Capital expenditures   $ 269   1,088    
Successor [Member] | Fixed Assets [Member]            
Property, Plant and Equipment [Line Items]            
Property, plant and equipment       $ 8,500    
Predecessor [Member]            
Property, Plant and Equipment [Line Items]            
Capital expenditures     $ 500      
Predecessor [Member] | Fixed Assets [Member]            
Property, Plant and Equipment [Line Items]            
Property, plant and equipment           $ 13,000