Annual report [Section 13 and 15(d), not S-K Item 405]

Fair Value Measurements - Nonrecurring Fair Value Inputs (Details)

v3.25.0.1
Fair Value Measurements - Nonrecurring Fair Value Inputs (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held for sale, measured at fair value $ 2,214 $ 2,059
Loans and leases, measured at fair value 4,249 3,569
Other assets 13,176 11,861
Nonrecurring | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held for sale, measured at fair value 2,652 2,793
Loans and leases, measured at fair value 119 153
Other assets 236 898
Nonrecurring | Level 3 | Pricing model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held for sale, measured at fair value 2,652 2,793
Nonrecurring | Level 3 | Market comparables    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans and leases, measured at fair value 119 153
Nonrecurring | Level 3 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets $ 236 $ 898
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 0.07
Implied yield | Nonrecurring | Level 3 | Pricing model | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held-for-sale, measurement input 0.28 0.23
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