Shareholders' Equity - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Class of Stock [Line Items]
Common stock dividends declared and paid			$ 1,100	$ 1,400
Preferred stock dividends declared and paid	$ 59	$ 59
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends declared and paid			58	58
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends declared and paid			33	32
Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends declared and paid			$ 29	$ 29