Quarterly report [Sections 13 or 15(d)]

Fair Value Measurements - Nonrecurring Fair Value (Details)

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Fair Value Measurements - Nonrecurring Fair Value (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Loans held-for-sale $ 2,672   $ 2,214
Loans and leases 5,386   4,249
Other assets 9,952   $ 13,176
Nonrecurring      
Gains (Losses)      
Loans held-for-sale 55 $ (56)  
Loans and leases (6) (10)  
Foreclosed properties 0 (4)  
Other assets (3) (13)  
Loss on loans and leases written down to zero 2 3  
Nonrecurring | Government Guaranteed Mortgage Loans upon Foreclosure Receivable      
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Foreclosed properties 15 28  
Nonrecurring | Level 2      
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Loans held-for-sale 85 35  
Loans and leases 0 0  
Foreclosed properties 0 0  
Other assets 1 0  
Nonrecurring | Level 3      
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis      
Loans held-for-sale 229 2,687  
Loans and leases 28 45  
Foreclosed properties 43 44  
Other assets $ 60 $ 10