XML 62 R52.htm IDEA: XBRL DOCUMENT v3.23.2
Investment Securities (Narrative) (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]    
Remaining unamortized loss on securities transferred to held to maturity, net of tax $ 12,300,000,000  
Remaining unamortized loss on securities transferred to held to maturity, pretax 16,300,000,000  
Held to maturity securities, assets pledged [1] 166,328,000,000 $ 173,074,000,000
Available for sale securities, assets pledged [1] 125,769,000,000 147,871,000,000
Available for sale, written down to fair value 0 0
Writedown to fair value 0 0
Available for sale, allowance for credit loss 0 0
Held to maturity securities, allowance for credit loss 0 0
Accrued interest receivable 607,000,000 685,000,000
Write-off of accrued interest receivable on available for sale and held to maturity securities $ 0 0
Estimated effective duration of available for sale and held to maturity investment securities portfolio 4 years  
Estimated effective duration of available for sale investment securities portfolio 2 years 4 months 24 days  
Asset Pledged as Collateral [Member]    
Debt Securities, Available-for-sale [Line Items]    
Held to maturity securities, assets pledged [1] $ 8,365,000,000 4,522,000,000
Available for sale securities, assets pledged [1] 28,000,000 41,000,000
Asset Pledged as Collateral [Member] | Interest Rate Swaps [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available for sale securities, assets pledged 178,000,000  
Federal Home Loan Bank Advances [Member]    
Debt Securities, Available-for-sale [Line Items]    
Fair value of pledged securities 61,400,000,000  
Federal Reserve Bank Advances [Member]    
Debt Securities, Available-for-sale [Line Items]    
Fair value of pledged securities 8,800,000,000  
Federal Reserve Bank Term Funding Program (BTFP) [Member]    
Debt Securities, Available-for-sale [Line Items]    
Fair value of pledged securities 41,600,000,000  
U.S. agency mortgage-backed securities [Member]    
Debt Securities, Available-for-sale [Line Items]    
Transfers of available for sale securities to held to maturity   188,600,000,000
Pretax unrealized loss from transfers of available for sale securities to held to maturity   18,200,000,000
Held to maturity securities, assets pledged 166,328,000,000 173,074,000,000
Available for sale securities, assets pledged 71,727,000,000 $ 77,688,000,000
U.S. agency mortgage-backed securities [Member] | Asset Pledged as Collateral [Member] | Securities Sold under Agreements to Repurchase [Member]    
Debt Securities, Available-for-sale [Line Items]    
Held to maturity securities, assets pledged 8,400,000,000  
Available for sale securities, assets pledged 28,000,000  
Deposits [Member]    
Debt Securities, Available-for-sale [Line Items]    
Fair value of pledged securities $ 1,600,000,000  
[1] Certain prior year amounts have been reclassified to conform to the current year presentation. See Note 1 for additional information.