XML 81 R66.htm IDEA: XBRL DOCUMENT v3.20.4
Loans and Allowance for Credit Losses (Narrative) (Details)
$ in Thousands, U_xbrlipure in Millions
 12 Months Ended
Dec. 31, 2020
USD ($)
loan
Customer
Dec. 31, 2019
USD ($)
loan
Dec. 31, 2018
USD ($)
loan
Accounts Notes And Loans Receivable [Line Items]      
Loans held for sale $ 136,063 $ 55,864  
Accrued interest 76,200 67,700  
Related party balances of loans 11,600 13,400  
Related party new loans 4,100    
Related party repayments 6,100    
Short-term borrowings 1,667,513 2,714,872  
Provision for credit losses 602,904 47,708 $ 36,116
Nonaccrual loans 139,879 245,833  
TDRs both accruing and nonaccruing 25,800 193,700  
Unfunded commitment to borrowers related to modified TDR $ 4,600 2,400  
Number of customer loans excluded from TDR | Customer 176    
Loans excluded from TDR disclosure $ 630,600    
Total Past Due 176,491 260,818  
Recorded Investment > 90 Days and Accruing 3,361 6,582  
Purchased with credit deterioration, increase 19,800    
30-59 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 56,684 83,693  
60-89 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 19,269 30,183  
Greater Than 90 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 100,538 146,942  
Troubled Debt Restructurings [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Nonaccrual loans 21,600 $ 132,500  
Reduced interest rate 1,100    
Number of TDRs subsequently defaulted | loan   0  
Troubled Debt Restructurings [Member] | Commercial Non-Real Estate [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Equity securities $ 6,800    
Number of TDRs subsequently defaulted | loan 2    
Recorded Investment $ 13,400    
Troubled Debt Restructurings [Member] | Loans With Extended Amortization Terms Or Other Payment Concessions [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Extended terms and other payment concessions 1,000 $ 18,700 50,800
Troubled Debt Restructurings [Member] | Loans With Significant Covenant Waivers [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Covenant waivers 400 41,300 14,600
Troubled Debt Restructurings [Member] | Loans With Other Modifications [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Other modifications 2,100 8,100 $ 29,400
Prior to Adoption of CEFL [member]      
Accounts Notes And Loans Receivable [Line Items]      
Nonaccrual loans   17,500  
Recorded Investment > 90 Days and Accruing   8,300  
Prior to Adoption of CEFL [member] | 30-59 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due   6,100  
Prior to Adoption of CEFL [member] | 60-89 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due   2,000  
Prior to Adoption of CEFL [member] | Greater Than 90 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due   8,300  
Cumulative Effect, Period of Adoption, Adjustment [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Increase in the allowance for credit losses $ 76,700    
Downside Scenario S-1 [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Weighted average percentage of forecast 6500.00%    
Downside Scenario S-2 [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Weighted average percentage of forecast 2500.00%    
Downside Scenario S-3 [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Weighted average percentage of forecast 1000.00%    
FHLB Borrowings [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Short-term borrowings $ 1,100,000 2,035,000  
Executive Officer      
Accounts Notes And Loans Receivable [Line Items]      
Related party new loans 200    
Energy Loan Portfolio [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Loans held for sale 497,000    
Net proceeds on sale of loans 254,400    
Energy Related Loans [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Loans held for sale 497,000    
Charge-off 242,600    
Release of credit loss reserves 82,500    
Provision for credit losses 160,100    
Residential Portfolio Segment      
Accounts Notes And Loans Receivable [Line Items]      
Nonaccrual loans 40,573 39,262  
Total Past Due 67,063 65,028  
Recorded Investment > 90 Days and Accruing 912 85  
Residential Portfolio Segment | 30-59 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 29,319 32,867  
Residential Portfolio Segment | 60-89 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 9,858 8,584  
Residential Portfolio Segment | Greater Than 90 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due $ 27,886 23,577  
Residential Portfolio Segment | Troubled Debt Restructurings [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Number of TDRs subsequently defaulted | loan 2   1
Recorded Investment     $ 200
Commercial Real Estate Owner Occupied | Troubled Debt Restructurings [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Number of TDRs subsequently defaulted | loan     1
Recorded Investment $ 800   $ 1,800
Consumer Portfolio Segment      
Accounts Notes And Loans Receivable [Line Items]      
Nonaccrual loans 23,385 16,374  
Total Past Due 28,941 34,702  
Recorded Investment > 90 Days and Accruing 729 1,638  
Real estate in process of foreclosure 17,200 8,600  
Real estate acquired through foreclosure 3,400 6,300  
Consumer Portfolio Segment | 30-59 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 12,215 18,586  
Consumer Portfolio Segment | 60-89 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due 5,012 6,215  
Consumer Portfolio Segment | Greater Than 90 Days Past Due [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Total Past Due $ 11,714 $ 9,901  
Consumer Portfolio Segment | Troubled Debt Restructurings [Member]      
Accounts Notes And Loans Receivable [Line Items]      
Number of TDRs subsequently defaulted | loan 1   1
Recorded Investment $ 100   $ 100