Stockholders' Equity - Stock Offerings (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		6 Months Ended		12 Months Ended
	Mar. 26, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Class of Stock [Line Items]
Proceeds from issuance of common stock	$ 1,670	$ 0	$ 1,672
Proceeds from issuance of preferred stock	$ 983	$ 0	$ 983
Common Class B
Class of Stock [Line Items]
Stock issuances (in shares)	20
Shares issued (in dollars per share)	$ 85
Series A Convertible Preferred Stock
Class of Stock [Line Items]
Stock issuances (in shares)	10
Preferred stock, percentage	5.75%	5.75%		5.75%
Liquidation preference (in dollars per share)	$ 100