Annual report pursuant to Section 13 and 15(d)

FAIR VALUES OF ASSETS AND LIABILITIES - Significant Unobservable Level 3 Inputs (Details)

v3.22.4
FAIR VALUES OF ASSETS AND LIABILITIES - Significant Unobservable Level 3 Inputs (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative assets gross $ 2,164 $ 1,065
Recurring    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
MSRs 494 351
Recurring | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
MSRs 494 351
Derivative assets gross $ 3 $ 10
Residential MBS | Measurement Input, Constant Prepayment Rate | Recurring | Maximum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Servicing Asset, Measurement Input 0.40 0.23
Residential MBS | Measurement Input, Constant Prepayment Rate | Recurring | Minimum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Servicing Asset, Measurement Input 0.05 0.08
Residential MBS | Measurement Input, Constant Prepayment Rate | Recurring | Weighted Average | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Servicing Asset, Measurement Input 0.07 0.12
Residential MBS | Measurement Input, Option Adjusted Spread | Recurring | Maximum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Servicing Asset, Measurement Input 0.13 0.11
Residential MBS | Measurement Input, Option Adjusted Spread | Recurring | Minimum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Servicing Asset, Measurement Input 0.05 0.03
Residential MBS | Measurement Input, Option Adjusted Spread | Recurring | Weighted Average | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Servicing Asset, Measurement Input 0.06 0.05
Corporate obligations | Measurement Input, Discount Rate | Recurring | Maximum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.05 0.02
Corporate obligations | Measurement Input, Discount Rate | Recurring | Minimum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.05 0
Corporate obligations | Measurement Input, Discount Rate | Recurring | Weighted Average | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.05 0.01
Corporate obligations | Measurement Input, Default Rate | Recurring | Maximum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.64 0.64
Corporate obligations | Measurement Input, Default Rate | Recurring | Minimum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0 0
Corporate obligations | Measurement Input, Default Rate | Recurring | Weighted Average | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.07 0.05
Corporate obligations | Measurement Input, Loss Severity | Recurring | Maximum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.20 0.80
Corporate obligations | Measurement Input, Loss Severity | Recurring | Minimum | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.20 0.05
Corporate obligations | Measurement Input, Loss Severity | Recurring | Weighted Average | Valuation Technique, Discounted Cash Flow | Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Debt Securities, Available-for-sale, Measurement Input 0.20 0.23