Segment Information (Schedule of Other Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 11	$ 28
Accounts receivable	1,763	1,160
Property, plant and equipment	10,740	9,938
Unamortized debt expense	51	57
Right-of-use lease assets	183	187
TOTAL ASSETS	13,104	$ 11,848	$ 9,241
Other
Segment Reporting Information [Line Items]
Cash and cash equivalents	11		12
Accounts receivable	1		4
Prepayments	8		13
Property, plant and equipment	10		12
Unamortized debt expense	21		10
Right-of-use lease assets	58		67
Non-qualified retirement plan	3		4
Long-term hedging asset (interest rate swaps)	0		1
TOTAL ASSETS	$ 112		$ 123