CONSOLIDATED STATEMENT OF EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common stock distributions and distributions payable, per share (in dollars per share)	$ 0.74	$ 0.69	$ 0.73
Series E Cumulative Redeemable Preferred Stock
Preferred stock dividends and dividends payable (in dollars per share)	1.7375	1.7375	1.7375
Series F Cumulative Redeemable Preferred Stock
Preferred stock dividends and dividends payable (in dollars per share)	$ 1.6125	$ 1.6125	$ 1.6125