v3.25.2
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Notional Amounts and Gross Fair Values (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Derivatives, Fair Value [Line Items]    
Notional amount $ 16,073.0 $ 15,924.0
Derivative asset, not offset against collateral 69.0 96.0
Derivative liability, not offset against collateral 53.0 22.0
Derivative asset, not subject to master netting arrangement 58.0 21.0
Not subject to master netting arrangement 187.0 291.0
Fair value, asset 127.0 117.0
Fair value, liability 240.0 313.0
Interest rate contracts – designated    
Derivatives, Fair Value [Line Items]    
Derivative asset, not offset against collateral 13.0 0.0
Derivative liability, not offset against collateral 0.0 6.0
Interest rate swaps – not designated    
Derivatives, Fair Value [Line Items]    
Derivative asset, not offset against collateral 56.0 96.0
Derivative liability, not offset against collateral 53.0 16.0
Derivative asset, not subject to master netting arrangement 53.0 16.0
Not subject to master netting arrangement 182.0 287.0
Interest rate lock commitments – not designated    
Derivatives, Fair Value [Line Items]    
Derivative asset, not subject to master netting arrangement 5.0 1.0
Not subject to master netting arrangement 0.0 4.0
Forward delivery commitments – not designated    
Derivatives, Fair Value [Line Items]    
Derivative asset, not subject to master netting arrangement 0.0 4.0
Not subject to master netting arrangement 5.0 0.0
Credit risk contracts – not designated    
Derivatives, Fair Value [Line Items]    
Notional amount 574.0  
Derivative asset, not subject to master netting arrangement 0.0 0.0
Not subject to master netting arrangement 0.0 0.0
Subject to master netting arrangements:    
Derivatives, Fair Value [Line Items]    
Notional amount 8,255.0 8,301.0
Subject to master netting arrangements: | Interest rate contracts – designated    
Derivatives, Fair Value [Line Items]    
Notional amount 2,150.0 2,400.0
Subject to master netting arrangements: | Interest rate swaps – not designated    
Derivatives, Fair Value [Line Items]    
Notional amount 6,105.0 5,901.0
Not subject to master netting arrangements:    
Derivatives, Fair Value [Line Items]    
Notional amount 7,818.0 7,623.0
Not subject to master netting arrangements: | Interest rate swaps – not designated    
Derivatives, Fair Value [Line Items]    
Notional amount 6,105.0 5,901.0
Not subject to master netting arrangements: | Interest rate lock commitments – not designated    
Derivatives, Fair Value [Line Items]    
Notional amount 473.0 417.0
Not subject to master netting arrangements: | Forward delivery commitments – not designated    
Derivatives, Fair Value [Line Items]    
Notional amount 477.0 486.0
Not subject to master netting arrangements: | Credit risk contracts – not designated    
Derivatives, Fair Value [Line Items]    
Notional amount $ 763.0 $ 819.0