Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Roll Forward (Details)

v3.24.1.u1
FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Roll Forward (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Derivative instruments        
Opening balance $ 4 $ 3 $ (2) $ (2)
Transfers into Level 3 0      
Transfers out of Level 3 (5) (2)    
Included in OCI 0 0    
Purchases/originations 0 0    
Repayments   0    
Settlements 6 0    
Closing balance 4 3    
Change in unrealized gains or losses for the period included in earnings for assets held at end of the reporting date 1 5    
Mortgage banking income        
Derivative instruments        
Included in earnings: 7 7    
Interest and fee income        
Derivative instruments        
Included in earnings:   0    
Noninterest income        
Derivative instruments        
Included in earnings: (2)      
MSRs        
Assets Level 3 Roll Forward:        
Opening balance 515 494    
Transfers into Level 3 0      
Transfers out of Level 3 0 0    
Total gains/losses for the period:        
Included in OCI 0 0    
Purchases/originations 10 13    
Repayments   0    
Settlements (11) (10)    
Closing balance 534 485 515 494
Change in unrealized gains or losses for the period included in earnings for assets held at end of the reporting date 20 (12)    
MSRs | Mortgage banking income        
Total gains/losses for the period:        
Included in earnings: 20 (12)    
MSRs | Interest and fee income        
Total gains/losses for the period:        
Included in earnings:   0    
MSRs | Noninterest income        
Total gains/losses for the period:        
Included in earnings: 0      
Municipal securities        
Assets Level 3 Roll Forward:        
Opening balance 3,335 3,248    
Transfers into Level 3 0      
Transfers out of Level 3 0 0    
Total gains/losses for the period:        
Included in OCI 19 3    
Purchases/originations 72 177    
Repayments   0    
Settlements (133) (89)    
Closing balance 3,293 3,339 3,335 3,248
Change in unrealized gains or losses for the period included in other comprehensive income for assets held at the end of the reporting period 18 3    
Municipal securities | Mortgage banking income        
Total gains/losses for the period:        
Included in earnings: 0 0    
Municipal securities | Interest and fee income        
Total gains/losses for the period:        
Included in earnings:   0    
Municipal securities | Noninterest income        
Total gains/losses for the period:        
Included in earnings: 0      
Private-label CMO        
Assets Level 3 Roll Forward:        
Opening balance 20 20    
Transfers into Level 3 0      
Transfers out of Level 3 0 0    
Total gains/losses for the period:        
Included in OCI 0 0    
Purchases/originations 0 0    
Repayments   0    
Settlements 0 1    
Closing balance 20 20 20 20
Change in unrealized gains or losses for the period included in other comprehensive income for assets held at the end of the reporting period 0 0    
Private-label CMO | Mortgage banking income        
Total gains/losses for the period:        
Included in earnings: 0 0    
Private-label CMO | Interest and fee income        
Total gains/losses for the period:        
Included in earnings:   (1)    
Private-label CMO | Noninterest income        
Total gains/losses for the period:        
Included in earnings: 0      
Asset-backed securities        
Assets Level 3 Roll Forward:        
Opening balance 75 74    
Transfers into Level 3 0      
Transfers out of Level 3 0 0    
Total gains/losses for the period:        
Included in OCI 0 0    
Purchases/originations 0 0    
Repayments   0    
Settlements (3) 0    
Closing balance 72 74 75 74
Change in unrealized gains or losses for the period included in other comprehensive income for assets held at the end of the reporting period 0 0    
Asset-backed securities | Mortgage banking income        
Total gains/losses for the period:        
Included in earnings: 0 0    
Asset-backed securities | Interest and fee income        
Total gains/losses for the period:        
Included in earnings:   0    
Asset-backed securities | Noninterest income        
Total gains/losses for the period:        
Included in earnings: 0      
Loans held for investment        
Assets Level 3 Roll Forward:        
Opening balance 54 16    
Transfers into Level 3 4      
Transfers out of Level 3 0 0    
Total gains/losses for the period:        
Included in OCI 0 0    
Purchases/originations 0 0    
Repayments   (1)    
Settlements 0 0    
Closing balance 58 15 $ 54 $ 16
Change in unrealized gains or losses for the period included in earnings for assets held at end of the reporting date 0 0    
Loans held for investment | Mortgage banking income        
Total gains/losses for the period:        
Included in earnings: 0 0    
Loans held for investment | Interest and fee income        
Total gains/losses for the period:        
Included in earnings:   $ 0    
Loans held for investment | Noninterest income        
Total gains/losses for the period:        
Included in earnings: $ 0