Other Income and Expense - Other Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Schedule of Other Nonoperating Income [Line Items]
Other Nonoperating Income	$ 12	$ 4	$ 36	$ 80
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Other Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Expenses	Other Expenses	Other Expenses	Other Expenses
Other Expenses	$ 12	$ 10	$ 38	$ 51
Other Income [Member]
Schedule of Other Nonoperating Income [Line Items]
Insurance proceeds (2)	0	0	0	(16)
Gain (Loss) on Disposition of Other Assets	1	0	3	0
Other income	6	0	19	15
Other Nonoperating Income	12	4	36	80
Allowance for Funds Used During Construction, Capitalized Interest	5	4	11	9
Litigation Settlement, Amount Awarded from Other Party	0	0	3	6
Proceeds, Financing Receivable, Previously Written Off, Recovery	0	0	0	5
Asset Acquisition of a VIE, Contingent Consideration, Remeasurement Gain	0	0	0	3
Other Income [Member] | Valuation, Market Approach
Schedule of Other Nonoperating Income [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	0	0	0	26
Other Expense [Member]
Schedule of Other Nonoperating Income [Line Items]
Gain (Loss) on Disposition of Other Assets	3	0	12	9
Loss Contingency Accrual	1	0	9	0
Sales-type and Direct Financing Leases, Profit (Loss)	0	0	0	20
Other Nonoperating Expense	6	2	7	14
Other Expenses	12	10	38	51
Gain (Loss) Related to Litigation Settlement	$ 0	$ 8	$ 1	$ 8