Common Equity (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Common Equity [Line Items]
Shares available for issuance under the 2020 OIP, Shareowner Direct Plan and 401(k) Savings Plan (in shares)	13,000,000
Proceeds from issuance of common stock, net	$ 246	$ 25	$ 28
At-the-market Offering Program [Member]
Schedule of Common Equity [Line Items]
Proceeds from issuance of common stock, net	$ 223	$ 225
Common stock issued during the period, At-the-market offering program (in shares)	4,372,561	0	0
Fees and commissions from issuance of common stock	$ 2