Segment Information (Schedule of Other Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 50	$ 28
Accounts receivable	1,781	1,160
Property, plant and equipment	10,514	9,938
Unamortized debt expense	53	57
Right-of-use lease assets	190	187
TOTAL ASSETS	12,932	$ 11,848	$ 5,394
Other
Segment Reporting Information [Line Items]
Cash and cash equivalents	50		2
Accounts receivable	1		3
Prepayments	11		15
Property, plant and equipment	9		14
Unamortized debt expense	19		11
Right-of-use lease assets	60		67
Non-qualified retirement plan	3		4
TOTAL ASSETS	$ 153		$ 116