Total Equity - Preferred Stock Outstanding (Details) - USD ($) $ / shares in Units, $ in Millions	Nov. 19, 2021	Mar. 15, 2021	Dec. 31, 2021	Dec. 31, 2020
Class of Stock
Preferred stock			$ 7,750	$ 9,250
Preferred stock authorized (in shares)			30,000,000,000,000
Series A
Class of Stock
Preferred stock shares outstanding (in shares)			44,000
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 1,100	1,100
Series C
Class of Stock
Preferred stock shares outstanding (in shares)			519,882
Liquidation preference per share (in dollars per share)			$ 1,000
Preferred stock			$ 408	408
Series E
Class of Stock
Preferred stock shares outstanding (in shares)			34,500
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 862	862
Series F
Class of Stock
Preferred stock shares outstanding (in shares)			34,000
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 850	850
Series H
Class of Stock
Preferred stock shares outstanding (in shares)			0
Liquidation preference per share (in dollars per share)			$ 0
Preferred stock			$ 0	1,300
Redemption of preferred stock	$ 1,300
Series I
Class of Stock
Preferred stock shares outstanding (in shares)			40,000
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 1,000	1,000
Series J
Class of Stock
Preferred stock shares outstanding (in shares)			0
Liquidation preference per share (in dollars per share)			$ 0
Preferred stock			$ 0	1,500
Redemption of preferred stock		$ 1,500
Series K
Class of Stock
Preferred stock shares outstanding (in shares)			40,000
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 1,000	1,000
Series L
Class of Stock
Preferred stock shares outstanding (in shares)			20,000
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 500	500
Series M
Class of Stock
Preferred stock shares outstanding (in shares)			400,000
Liquidation preference per share (in dollars per share)			$ 1,000
Preferred stock			$ 430	430
Series N
Class of Stock
Preferred stock shares outstanding (in shares)			3,000
Liquidation preference per share (in dollars per share)			$ 100,000
Preferred stock			$ 300	300
Series O
Class of Stock
Preferred stock shares outstanding (in shares)			52,000
Liquidation preference per share (in dollars per share)			$ 25,000
Preferred stock			$ 1,300	$ 0