REVENUE FROM CONTRACTS WITH CUSTOMERS - Summary of Noninterest Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Wealth and asset management revenue	$ 1,468	$ 1,400	$ 1,318
Noninterest income within the scope of other GAAP topics	572	521	663
Total noninterest income	$ 2,040	$ 1,921	$ 1,981