Condensed Consolidated Statement of Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Common stock dividends (in dollars per share)	$ 2.09	$ 2.0775	$ 6.27	$ 6.2325