Stockholders' Equity and EPS - Preferred Stock (Details) - $ / shares					12 Months Ended
	Oct. 28, 2021	May 13, 2021	Feb. 02, 2021	Dec. 09, 2019	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Preferred stock, par value					$ 0.001	$ 0.001
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (percent)				5.25%
Preferred stock, depositary shares issued				14,000,000
Preferred stock, depositary share ownership interest					2.50%
Preferred stock, par value				$ 0.001	$ 0.001
Preferred stock, liquidation preference (usd per share)				1,000
Preferred stock, liquidation preference per depositary share (usd per share)				$ 25	$ 25
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (percent)			4.10%
Preferred stock, depositary shares issued			750,000
Preferred stock, depositary share ownership interest					1.00%
Preferred stock, par value			$ 0.001		$ 0.001
Preferred stock, liquidation preference (usd per share)			100,000
Preferred stock, liquidation preference per depositary share (usd per share)			$ 1,000		$ 1,000
Preferred stock, period dividend rate reset using ten-year treasury rate			10 years
Preferred stock, number of business days prior to each reset date dividend rate calculated			3 days
Preferred stock, number of days used for average yields on actively traded US treasury securities			5 days
Preferred stock, margin used for dividend rate at reset			3.064%
Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (percent)		4.00%
Preferred stock, depositary shares issued		1,000,000
Preferred stock, depositary share ownership interest					1.00%
Preferred stock, par value		$ 0.001			$ 0.001
Preferred stock, liquidation preference (usd per share)		100,000
Preferred stock, liquidation preference per depositary share (usd per share)		$ 1,000			$ 1,000
Preferred stock, period dividend rate reset using five-year treasury rate		5 years
Preferred stock, number of business days prior to each reset date dividend rate calculated		3 days
Preferred stock, number of days used for average yields on actively traded US treasury securities		5 days
Preferred stock, margin used for dividend rate at reset		3.202%
Series D Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (percent)	4.25%
Preferred stock, depositary shares issued	1,000,000
Preferred stock, depositary share ownership interest					1.00%
Preferred stock, par value	$ 0.001				$ 0.001
Preferred stock, liquidation preference (usd per share)	100,000
Preferred stock, liquidation preference per depositary share (usd per share)	$ 1,000				$ 1,000
Preferred stock, period dividend rate reset using five-year treasury rate	5 years
Preferred stock, number of business days prior to each reset date dividend rate calculated	3 days
Preferred stock, number of days used for average yields on actively traded US treasury securities	5 days
Preferred stock, margin used for dividend rate at reset	3.074%
Series E Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate (percent)	4.70%
Preferred stock, depositary shares issued	600,000
Preferred stock, depositary share ownership interest					1.00%
Preferred stock, par value	$ 0.001				$ 0.001
Preferred stock, liquidation preference (usd per share)	100,000
Preferred stock, liquidation preference per depositary share (usd per share)	$ 1,000				$ 1,000
Preferred stock, period dividend rate reset using ten-year treasury rate	10 years
Preferred stock, number of business days prior to each reset date dividend rate calculated	3 days
Preferred stock, number of days used for average yields on actively traded US treasury securities	5 days
Preferred stock, margin used for dividend rate at reset	3.064%