Condensed Statements of Consolidated Changes in Equity (Parenthetical)	Dec. 31, 2019 $ / shares shares
Class of Stock [Line Items]
Common stock shares par value (in dollars per share)	$ 0.01
Common stock shares authorized (in shares) | shares	1,000,000,000
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Cumulative preferred stock par value (in dollars per share)	$ 0.01
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Cumulative preferred stock par value (in dollars per share)	$ 0.01