CONSOLIDATED STATEMENT OF CHANGES IN EQUITY CONSOLIDATED STATEMENT OF CHANGES IN EQUITY Parenthetical - $ / shares	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Statement of Stockholders' Equity [Abstract]
Preferred stock, dividends paid (in dollars per share)	$ 13.75	$ 13.75	$ 13.75	$ 13.75	$ 13.75	$ 13.75
Common stock dividends paid (in dollars per share)	$ 0.935	$ 0.935	$ 0.935	$ 0.935	$ 0.935	$ 0.935