Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Nonrecurring Fair Value (Details)

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Fair Value Measurements - Nonrecurring Fair Value (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Loans held-for-sale $ 4,455 $ 1,585  
Loans and leases 7,819 6,681  
Other assets 12,144 15,718  
Nonrecurring      
Gains (Losses)      
Loans held-for-sale (44) (79) $ (14)
Loans and leases (60) (73) (81)
Foreclosed properties (2) (6) (9)
Other assets (492) (98) (2,145)
Loss on loans and leases written down to zero 24 30 $ 36
Nonrecurring | Government Guaranteed Mortgage Loans upon Foreclosure Receivable      
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Foreclosed properties 52 119  
Nonrecurring | Level 2      
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Loans held-for-sale 634 1,020  
Loans and leases 0 0  
Foreclosed properties 0 0  
Other assets 256 323  
Nonrecurring | Level 3      
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Loans held-for-sale 24 792  
Loans and leases 213 301  
Foreclosed properties 5 17  
Other assets $ 2,046 $ 576