Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended
	May 04, 2023	Mar. 14, 2019	Apr. 28, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	May 03, 2022
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)				$ 5.00		$ 5.00
Authorized repurchase amount							$ 6,500
Remaining authorized repurchase amount							$ 1,500
Shares purchased (in shares)				11,100,000
Aggregate repurchases of common stock				$ 603	$ 1,403
Dividends declared, preferred stock (in dollars per share)				$ 365.625	$ 365.625
Subsequent event
Class of Stock [Line Items]
Shares purchased (in shares)			4,000,000
Aggregate repurchases of common stock			$ 200
Dividends declared, common stock (in dollars per share)	$ 0.36
Increase in dividend rate (as a percent)	12.50%
Dividends declared, preferred stock (in dollars per share)	$ 365.625
Series A Preferred Stock
Class of Stock [Line Items]
Issuances (in shares)		20,000
Preferred stock, dividend rate (as a percent)		5.85%
Preferred stock, par value (in dollars per share)		$ 5.00
Preferred stock liquidation preference (in dollars per share)		$ 25,000
Issuance of preferred stock		$ 485
Series A Depositary Shares
Class of Stock [Line Items]
Issuances (in shares)		20,000,000
Preferred stock liquidation preference (in dollars per share)		$ 25