Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 24, 2024	Jan. 31, 2024	Jan. 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 16, 2024	Mar. 15, 2024	Jan. 19, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Proceeds from issuance of preferred stock, net of issuance costs						$ 2,323	$ 0
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
Proceeds from issuance of preferred stock, net of issuance costs		$ 1,500
Per annum dividend rate			6.70%
Preferred stock, shares outstanding (in shares)				15,000		15,000					15,000
Series I Preferred Stock, Depository Share
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)		$ 1,000	$ 1,000
Series D Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)									$ 100,000
Redemption price									$ 1,000
Preferred stock, shares outstanding (in shares)				7,500		7,500			7,500		7,500
Series D Preferred Stock, Depository Share
Class of Stock [Line Items]
Liquidation preference per share (USD per share)									$ 25
Preferred stock, shares outstanding (in shares)									30,000,000
Series F Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)									$ 100,000
Preferred stock, shares outstanding (in shares)				2,500		2,500			2,500		2,500
Series F Preferred Stock, Depository Share
Class of Stock [Line Items]
Liquidation preference per share (USD per share)									$ 1,000
Preferred stock, shares outstanding (in shares)									250,000
Series J Preferred Stock
Class of Stock [Line Items]
Preferred stock issued (shares)	850,000
Ownership Interest Per Depositary Share			1.00%
Liquidation preference per share (USD per share)	$ 100,000	100,000	$ 100,000
Proceeds from issuance of preferred stock, net of issuance costs	$ 842
Per annum dividend rate	6.70%		6.70%
Preferred stock, shares outstanding (in shares)				8,500		8,500					8,500
Series J Preferred Stock, Depository Share
Class of Stock [Line Items]
Preferred stock issued (shares)			850,000
Ownership Interest Per Depositary Share	1.00%
Liquidation preference per share (USD per share)	$ 1,000	$ 1,000	$ 1,000
Series H Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (USD per share)								$ 100,000
Redemption price								$ 500
Preferred stock, shares outstanding (in shares)				5,000		5,000		5,000			5,000
Series H Preferred Stock, Depository Share
Class of Stock [Line Items]
Liquidation preference per share (USD per share)								$ 1,000
Preferred stock, shares outstanding (in shares)								500,000
2024 Share Repurchase Program
Class of Stock [Line Items]
Amount of common stock authorized for repurchase										$ 5,000
Total Acquired (In millions)				$ 450	$ 0	$ 750	$ 0