Condensed Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Preferred stock dividend declared (in usd per share)	$ 14.75	$ 14.75	$ 29.50	$ 29.50
Common stock dividends declared per share (usd per share)	$ 0.170	$ 0.155	$ 0.325	$ 0.465