Quarterly report [Sections 13 or 15(d)]

Fair Value Measurements - Nonrecurring Fair Value Inputs (Details)

v3.25.1
Fair Value Measurements - Nonrecurring Fair Value Inputs (Details)
$ in Millions
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans held for sale, measured at fair value $ 2,672 $ 2,214  
Loans and leases, measured at fair value 5,386 4,249  
Other assets 9,952 13,176  
Nonrecurring | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans held for sale, measured at fair value 229   $ 2,687
Loans and leases, measured at fair value 28   45
Other assets 60   $ 10
Nonrecurring | Level 3 | Pricing model      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans held for sale, measured at fair value 229 2,652  
Nonrecurring | Level 3 | Market comparables      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measured at fair value 28 119  
Nonrecurring | Level 3 | Discounted cash flow      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Other assets $ 60 $ 236  
Implied yield | Nonrecurring | Level 3 | Pricing model | Minimum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans held-for-sale, measurement input 0.09 0.09  
Implied yield | Nonrecurring | Level 3 | Pricing model | Maximum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans held-for-sale, measurement input 0.16 0.28  
OREO discount | Nonrecurring | Level 3 | Market comparables | Minimum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measurement input 0.10 0.10  
OREO discount | Nonrecurring | Level 3 | Market comparables | Maximum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measurement input 0.66 0.66  
OREO discount | Nonrecurring | Level 3 | Market comparables | Weighted Average      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measurement input 0.26 0.26  
Costs to sell | Nonrecurring | Level 3 | Market comparables | Minimum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measurement input 0.08 0.08  
Costs to sell | Nonrecurring | Level 3 | Market comparables | Maximum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measurement input 0.24 0.24  
Costs to sell | Nonrecurring | Level 3 | Market comparables | Weighted Average      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Loans and leases, measurement input 0.09 0.09  
Discount rate | Nonrecurring | Level 3 | Discounted cash flow      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Other assets, measurement input 0.07 0.07