Equity and Accumulated Other Comprehensive Loss, Net (5.850% Series K Cumulative Redeemable Preferred Stock) (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 29, 2019	Mar. 15, 2019	Mar. 13, 2019	Mar. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Preferred stock, issued (shares)				59,050,000	50,650,000
Series K Preferred Stock
Class of Stock [Line Items]
Preferred stock, issued (shares)			8,000,000
Dividend rate percentage			5.85%
Redemption price (in dollars per share)		$ 25.00		$ 25.00
Net proceeds from preferred stock			$ 193.7
Preferred stock dividend per share amount (in dollars per share)			$ 1.46250
Share cap (in shares)				0.43611
Series K Preferred Stock | Scenario, Forecast
Class of Stock [Line Items]
Preferred stock dividend per share amount (in dollars per share)	$ 0.43875
Series K Preferred Stock | Over-Allotment Option
Class of Stock [Line Items]
Preferred stock, issued (shares)		400,000
Net proceeds from preferred stock		$ 9.7