FAIR VALUE (Schedule of Assets and Liabilities Measured at Fair Value by Class on a Recurring Basis Using Level 3 Inputs) (Details) - Level 3 - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Private equity investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of assets, beginning balance	$ 101	$ 84	$ 92	$ 81
Unrealized securities gains (losses), net	5	2	7	(1)
Other noninterest income (expense)	0	0	0	0
Purchases	1	3	10	9
Cost of investments sold	(2)	0	(4)	0
Transfers out	0	0	0	0
Fair value of assets, ending balance	105	89	105	89
Ag loan servicing
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of assets, beginning balance	20	17	19	14
Unrealized securities gains (losses), net	0	0	0	0
Other noninterest income (expense)	(1)	0	0	4
Purchases	0	0	0	(1)
Cost of investments sold	0	0	0	0
Transfers out	0	0	0	0
Fair value of assets, ending balance	$ 19	$ 17	$ 19	$ 17