Statements Of Consolidated Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Common Stock, Dividends, Per Share, Declared	$ 0.44	$ 0.42
Series A Preferred Stock
Preferred Stock, Liquidation Preference, Value	$ 400	$ 400
Series B Preferred Stock
Preferred Stock, Liquidation Preference, Value	$ 500	$ 500