Goodwill Mortgage Servicing Rights (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Mortgage servicing rights	$ 3,564		$ 3,711
Fees from mortgage and other loan servicing	$ 200	$ 200