Shareholders' Equity - Schedule of Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended
	Mar. 15, 2024	Jun. 15, 2022	Sep. 30, 2018	Apr. 30, 2016	May 31, 2015	Feb. 28, 2014	Sep. 30, 2023	Dec. 31, 2022
SOFR
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 | LIBOR | Forecast
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate	9.008%
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 | SOFR
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate		9.268%			3.859%
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 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 | LIBOR
Class of Stock [Line Items]
Per annum dividend rate, basis spread on variable rate			2.801%