Shareholders' Equity - Schedule of Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended
	Jan. 31, 2024	Jan. 31, 2024	Sep. 30, 2018	Apr. 30, 2016	Jun. 30, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Amount outstanding					$ 504	$ 504
Series G Preferred Stock, Depository Share
Class of Stock [Line Items]
Preferred stock issued (shares)				20,000,000
Amount outstanding				$ 500
Liquidation preference per share (USD per share)				$ 25
Series G Preferred Stock
Class of Stock [Line Items]
Ownership Interest Per Depositary Share				0.025%
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]
Preferred stock issued (shares)			500,000
Amount outstanding			$ 500
Liquidation preference per share (USD per share)			$ 1,000
Series H Preferred Stock
Class of Stock [Line Items]
Ownership Interest Per Depositary Share			1.00%
Liquidation preference per share (USD per share)			$ 100,000
Per annum dividend rate			8.185%
Per annum dividend rate, basis spread on variable rate			2.801%
Preferred stock					494	494
Series I Preferred Stock, Depository Share
Class of Stock [Line Items]
Preferred stock issued (shares)		1,500,000
Amount outstanding	$ 1,500	$ 1,500
Ownership Interest Per Depositary Share		1.00%
Liquidation preference per share (USD per share)	$ 1,000	$ 1,000
Series I Preferred Stock
Class of Stock [Line Items]
Preferred stock issued (shares)	1,500,000
Ownership Interest Per Depositary Share		1.00%
Liquidation preference per share (USD per share)	$ 100,000	$ 100,000
Per annum dividend rate		6.70%
Per annum dividend rate, basis spread on variable rate		2.613%
Reset period		5 years
Preferred stock					$ 1,481	$ 0