DERIVATIVES - Additional Information (Details) $ in Thousands	Sep. 30, 2022 USD ($) entity	Dec. 31, 2021 USD ($) entity
Derivative [Line Items]
Derivative, Notional Amount	$ 17,341,448	$ 17,683,691
Number of counterparties | entity	6	6
Derivative liabilities	$ 472,684	$ 212,977
Derivative Liability, Fair Value of Collateral, net of restricted cash	156,000
Derivative Liability, Fair Value of Collateral	184,900	$ 53,400
Restricted Cash	$ 28,900
Foreign Exchange
Derivative [Line Items]
Number of counterparties | entity	5	4
Credit Risk Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 391,400	$ 362,800
Credit Risk Derivative Liabilities, at Fair Value		100
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Derivative, Notional Amount	32,600	45,000
Other Credit Derivatives [Member]
Derivative [Line Items]
Derivative, Notional Amount	36,000	62,500
Credit Risk Derivative Liabilities, at Fair Value	4,000
Credit Risk Derivative Assets, at Fair Value		(3,300)
Derivative
Derivative [Line Items]
Derivative liabilities	161,800	74,200
Derivative | Foreign Exchange
Derivative [Line Items]
Derivative, Notional Amount		6,400,000
Derivative liabilities	33,100	15,200
Accrued interest and other liabilities | Derivative
Derivative [Line Items]
Derivative, Notional Amount	2,300,000	$ 2,400,000
Accrued interest and other liabilities | Derivative | Foreign Exchange
Derivative [Line Items]
Derivative, Notional Amount	$ 6,400,000