Other Income and Expense - Other Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Schedule of other expense [Line Items]
Other Expenses	$ 14	$ 12
Other Expense [Member]
Schedule of other expense [Line Items]
Other Nonoperating Expense	5	8
Other Expenses	14	12
Gain (Loss) on Disposition of Other Assets	2	4
Other Income [Member]
Schedule of other expense [Line Items]
Litigation Settlement, Amount Awarded from Other Party	3	0
Allowance for Funds Used During Construction, Capitalized Interest	3	3
Gain (Loss) on Disposition of Other Assets	$ 2	$ 0