Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Jun. 21, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Class of Stock [Line Items]
Common stock dividends declared and paid				$ 900	$ 750
Preferred stock dividends declared and paid		$ 59	$ 59
Amount set aside for preferred stock payments	$ 59
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends declared and paid	$ 29			29	29
Preferred stock dividends declared (in dollars per share)	$ 28.75
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends declared and paid	$ 16			16	16
Preferred stock dividends declared (in dollars per share)	$ 32.50
Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends declared and paid	$ 14			$ 14	$ 14
Preferred stock dividends declared (in dollars per share)	$ 28.50