Property, Plant And Equipment (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	4 Months Ended	5 Months Ended	9 Months Ended
	Jul. 31, 2022	Apr. 30, 2021	Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Proceeds from sale of property	$ 70
Property, plant and equipment				$ 11,948	$ 9,707
Capital expenditures incurred but not yet paid				431
Successor [Member]
Property, Plant and Equipment [Line Items]
Capital expenditures			$ 646	1,860
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