Shareholders' Equity - Schedule of Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended
	Jun. 15, 2022	Sep. 30, 2018	Apr. 30, 2016	May 31, 2015	Feb. 28, 2014	Mar. 31, 2023	Dec. 31, 2022
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Class of Stock [Line Items]
Basis spread, variable rate						0.26161%
Series D Preferred Stock, Depository Share
Class of Stock [Line Items]
Depositary shares issued (shares)					30,000,000
Amount outstanding (in shares)					750,000,000
Liquidation preference per share (USD per share)					$ 25
Series D Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)					$ 100,000
Per annum dividend rate					5.90%
Preferred stock						$ 742	$ 742
Series D Preferred Stock | London Interbank Offered Rate (LIBOR)
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate					3.108%
Series F Preferred Stock, Depository Share
Class of Stock [Line Items]
Depositary shares issued (shares)				250,000
Amount outstanding (in shares)				250,000,000
Liquidation preference per share (USD per share)				$ 1,000
Series F Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)				$ 100,000
Preferred stock						247	247
Series F Preferred Stock | London Interbank Offered Rate (LIBOR)
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate	8.463%			3.597%
Series G Preferred Stock, Depository Share
Class of Stock [Line Items]
Depositary shares issued (shares)			20,000,000
Amount outstanding (in shares)			500,000,000
Liquidation preference per share (USD per share)			$ 25
Series G Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)			$ 100,000
Per annum dividend rate			5.35%
Preferred stock						493	493
Series G Preferred Stock | London Interbank Offered Rate (LIBOR)
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate			3.709%
Series H Preferred Stock, Depository Share
Class of Stock [Line Items]
Depositary shares issued (shares)		500,000
Amount outstanding (in shares)		500,000,000
Liquidation preference per share (USD per share)		$ 1,000
Series H Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)		$ 100,000
Per annum dividend rate		5.625%
Preferred stock						$ 494	$ 494
Series H Preferred Stock | London Interbank Offered Rate (LIBOR)
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate		2.539%