Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
FAIR VALUES OF ASSETS AND LIABILITIES - Level 3 Roll Forward (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Assets Level 3 Roll Forward:                  
Transfers out of Level 3 (1)     $ (70) $ (75)          
Total gains/losses for the period:                  
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)     0 0          
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases     7 0          
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements     0 0          
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss)     21 34          
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs $ 23 $ 40 23 40   $ 41     $ (6)
MSRs                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3   0 0 0          
Assets Level 3 Roll Forward:                  
Opening balance 274 165 210 7          
Transfers out of Level 3 (1) 0                
Total gains/losses for the period:                  
Included in earnings (24) 7 27 (40)          
Included in OCI 0 0 0 0          
Purchases/originations 97 0 130 0          
Repayments 0 0 0 0          
Settlements (20) 0 (40) 0          
Closing balance 327 172 327 172 $ 274 210 $ 165 $ (205) 7
Change in unrealized gains or losses for the period included in earnings for assets held at end of the reporting date (24) 7 27 (40)          
Derivative instruments                  
Assets Level 3 Roll Forward:                  
Opening balance 10 39              
Transfers out of Level 3 (1) (31) (55)              
Total gains/losses for the period:                  
Included in earnings (37) (56)              
Included in OCI 0 0              
Purchases/originations 7 0              
Repayments 0 0 0 0          
Settlements 0 0              
Closing balance 23 40 23 40 10   39    
Change in unrealized gains or losses for the period included in earnings for assets held at end of the reporting date 5 0              
Municipal securities                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3   0 0 0          
Assets Level 3 Roll Forward:                  
Opening balance 3,070 2,937 2,951 2,999          
Transfers out of Level 3 (1) 0                
Total gains/losses for the period:                  
Included in earnings 0 0 0 (1)          
Included in OCI (1) 69 (5) 1          
Purchases/originations 1,144 264 1,353 338          
Repayments 0 0 0 0          
Settlements (252) (168) (338) (235)          
Closing balance 3,609 3,102 3,609 3,102 3,070 2,951 2,937   2,999
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI (1) (20) (4) 2          
Private-label CMO                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3   0 0            
Assets Level 3 Roll Forward:                  
Opening balance 11 2 9 2          
Transfers out of Level 3 (1) 0                
Total gains/losses for the period:                  
Included in earnings 0 0 0            
Included in OCI 0 0 0            
Purchases/originations 6 3 8            
Repayments 0 0 0            
Settlements 1 0 1            
Closing balance 18 5 18 5 11 9 2   2
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI 0   0 0          
Asset-backed securities                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3   0 0            
Assets Level 3 Roll Forward:                  
Opening balance 47 69 10 48          
Transfers out of Level 3 (1) 0                
Total gains/losses for the period:                  
Included in earnings 0 0 0 0          
Included in OCI 0 0 0 28          
Purchases/originations 38 0 75 0          
Repayments 0 0 0 (20)          
Settlements (39) (13) (39)            
Closing balance 46 56 46 56 47 10 69   48
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI 0 0 0 0          
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3       0          
Real Estate Loan [Member]                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3   0 0 0          
Assets Level 3 Roll Forward:                  
Opening balance 22 26 23 26          
Transfers out of Level 3 (1) 0                
Total gains/losses for the period:                  
Included in earnings 0 0 0 0          
Included in OCI 0 0 0 0          
Purchases/originations 0 0 0 0          
Repayments (1) (1) (2) (1)          
Settlements 0 0 0 0          
Closing balance 21 25 21 25 22 23 26   26
Change in unrealized gains or losses for the period included in earnings for assets held at end of the reporting date 0 0 0 0          
Residential Mortgage                  
Total gains/losses for the period:                  
MSRs 327 $ 172 327 $ 172 $ 274 210 $ 165   7
Residential Mortgage | Revision of Prior Period, Adjustment                  
Total gains/losses for the period:                  
MSRs                 $ 205
Fair Value, Recurring [Member]                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Available-for-sale securities 22,915   22,915     16,485      
Total gains/losses for the period:                  
MSRs 327   327     210      
Fair Value, Recurring [Member] | Commercial MBS                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Available-for-sale securities 1,368   1,368     1,163      
Fair Value, Recurring [Member] | Residential MBS                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Available-for-sale securities 13,197   13,197     7,935      
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Available-for-sale securities 19,237   19,237     13,510      
Total gains/losses for the period:                  
MSRs 0   0     0      
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Commercial MBS                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Available-for-sale securities 1,368   1,368     1,163      
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Residential MBS                  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]                  
Available-for-sale securities $ 13,197   $ 13,197     $ 7,935