Preferred Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2022	Jun. 30, 2022	Feb. 28, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Carrying Amount		$ 1,014		$ 520
Preferred stock, shares issued (in shares)		31,686		26,750
Noncontrolling interest		$ 295		$ 295
Series G Convertible Preferred Stock | TD Merger Agreement
Class of Stock [Line Items]
Sale of preferred stock, net (approximately)	$ 494
Preferred stock convertible as a percent of outstanding shares			4.90%
Fixed rate of conversion			5,574.136
Convertible preferred stock, shares issued upon conversion (in shares)			4,000
Series G
Class of Stock [Line Items]
Carrying Amount		$ 494		0
Preferred Class A
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)		300,000
Preferred stock, liquidation preference per share (in dollars per share)		$ 1,000
Annual Dividend Rate		3.75%
Noncontrolling interest		$ 295		$ 295
Preferred Class A | LIBOR
Class of Stock [Line Items]
Basis spread on variable rate		0.85%