Equity - Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 15, 2022	Mar. 15, 2022	Jun. 15, 2021	Mar. 15, 2021	Mar. 14, 2019	Jun. 30, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)						$ 5.00	$ 5.00
Series A Preferred Stock
Class of Stock [Line Items]
Issuances (in shares)					20,000
Preferred stock, dividend rate (as a percent)					5.85%
Preferred stock, par value (in dollars per share)					$ 5.00
Preferred stock liquidation preference (in dollars per share)					$ 25,000
Issuance of preferred stock					$ 485
Dividends paid (in dollars per share)	$ 365.625	$ 365.625	$ 365.625	$ 365.625
Series A Depositary Shares
Class of Stock [Line Items]
Issuances (in shares)					20,000,000
Preferred stock liquidation preference (in dollars per share)					$ 25
Dividends paid (in dollars per share)	$ 0.365625	$ 0.365625	$ 0.365625	$ 0.365625