Noninterest Revenue and Noninterest Expense - Other income (Details) - USD ($) $ in Millions		3 Months Ended
Jan. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Noninterest Income (Expense) [Abstract]
Operating lease income		$ 1,153	$ 829
First Republic-related gain	$ 588	$ 0	$ 588
Payment related to business acquisition	$ 609

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Period Type:	duration