Related Party Transactions (Schedule of related Party Transactions) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Interest Expense	$ 1,319	$ 1,117	$ 911
Affiliated Entity
Related Party Transaction [Line Items]
Interest income, Related Party [Domain]	9	10	12
Affiliated Entity | Related Party
Related Party Transaction [Line Items]
Interest Expense	36	95	88
Electricity, Generation [Member] | Affiliated Entity
Related Party Transaction [Line Items]
Cost of Sales—Non-Regulated	576	352	324
Revenue, Related Party, Type [Extensible Enumeration]	$ 1,055	$ 1,093	$ 1,159