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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Derivative [Line Items]    
Derivative asset, statement of financial position [extensible enumeration] Other assets Other assets
Derivative liability, statement of financial position [extensible enumeration] Other liabilities Other liabilities
Notional amount $ 14,282,000,000 $ 13,718,000,000
Additional amount in excess of posted collateral required in case of breached agreements 0 100,000
Subject to master netting arrangements:    
Derivative [Line Items]    
Notional amount $ 7,460,000,000 7,513,000,000
Interest rate contracts    
Derivative [Line Items]    
Maximum length of time hedged in interest rate cash flow hedge 2 years 3 months 18 days  
Period to reclassification of cash flow hedge gain loss 12 months  
Derivative loss to be reclassified within twelve months $ 34,000,000  
Derivative loss to be reclassified within twelve months, net of tax 26,300,000  
Derivative gain or losses excluded from assessment of hedge effectiveness 0  
Amount of gain (loss) reclassified from AOCI into net income 0 0
Interest rate contracts | Subject to master netting arrangements:    
Derivative [Line Items]    
Notional amount $ 1,800,000,000 2,180,000,000
Interest rate lock commitments | Minimum    
Derivative [Line Items]    
Lock in period for interest rates 30 days  
Interest rate lock commitments | Maximum    
Derivative [Line Items]    
Lock in period for interest rates 360 days  
Credit risk contracts    
Derivative [Line Items]    
Notional amount $ 506,500,000  
Maximum exposure under credit risk agreement assuming customer default 100,000 100,000
Credit risk derivatives, purchased at fair value 200,000 100,000
Credit risk derivatives, sold at fair value $ 100,000 $ 100,000
Credit risk contracts | Minimum    
Derivative [Line Items]    
Risk participation agreements, term 5 months  
Credit risk contracts | Maximum    
Derivative [Line Items]    
Risk participation agreements, term 17 years