Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Nonrecurring Fair Value Inputs (Details)

v3.22.0.1
Fair Value Measurements - Nonrecurring Fair Value Inputs (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
$ / security
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans and leases, measured at fair value $ 7,819 $ 6,681
Other assets, measured at fair value 12,144 15,718
Loans held for sale, measured at fair value 4,455 1,585
Nonrecurring | Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans and leases, measured at fair value 213 301
Other assets, measured at fair value 2,046 576
Loans held for sale, measured at fair value 24 $ 792
Nonrecurring | Level 3 | Market comparables    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measured at fair value 166  
Nonrecurring | Level 3 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measured at fair value $ 1,875  
Price | Nonrecurring | Level 3 | Discounted cash flow | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held-for-sale, measurement input   8
Price | Nonrecurring | Level 3 | Discounted cash flow | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held-for-sale, measurement input   99
Price | Nonrecurring | Level 3 | Discounted cash flow | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans held-for-sale, measurement input | $ / security   95
OREO discount | Nonrecurring | Level 3 | Market comparables | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans and leases, measurement input 0.13 0.13
OREO discount | Nonrecurring | Level 3 | Market comparables | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loans and leases, measurement input 0.59 0.59
OREO discount | Nonrecurring | Level 3 | Market comparables | Weighted Average    
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 | 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 0.26 0.26
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
Revenue attrition | Nonrecurring | Level 3 | Discounted cash flow | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input   0.02
Revenue attrition | Nonrecurring | Level 3 | Discounted cash flow | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input   0.19
Revenue attrition | Nonrecurring | Level 3 | Discounted cash flow | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input   0.07
Discount rate | Nonrecurring | Level 3 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input 0.07  
Discount rate | Nonrecurring | Level 3 | Discounted cash flow | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input   0.11
Discount rate | Nonrecurring | Level 3 | Discounted cash flow | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input   0.14
Discount rate | Nonrecurring | Level 3 | Discounted cash flow | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other assets, measurement input   0.12