Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY (Details)

v3.21.2
SHAREHOLDERS' EQUITY (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jul. 15, 2021
$ / shares
Rate
shares
Jun. 09, 2021
$ / shares
Jun. 09, 2021
$ / shares
Rate
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
$ / shares
Jun. 30, 2021
USD ($)
$ / shares
Rate
shares
Jun. 30, 2020
USD ($)
$ / shares
Mar. 31, 2021
shares
Dec. 31, 2020
USD ($)
shares
Class of Stock [Line Items]                  
Preferred Stock, Liquidation Preference Per Share | $ / shares       $ 1,000   $ 1,000      
Preferred Stock, Shares Outstanding | shares       1,257,500   1,257,500     750,500
Preferred Stock, Value, Outstanding       $ 2,851,000   $ 2,851,000      
Dividends, Preferred Stock, Cash       $ (43,000) $ (19,000) $ (74,000) $ (37,000)    
Common Stock, Shares Authorized | shares       2,250,000,000   2,250,000,000   1,500,000,000 1,500,000,000
Treasury Stock, Value       $ (105,000)   $ (105,000)     $ (59,000)
Red Iron                  
Class of Stock [Line Items]                  
Noncontrolling Interest, Ownership Percentage by Parent       55.00%   55.00%      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners       45.00%   45.00%      
Subsequent Event                  
Class of Stock [Line Items]                  
Depositary Shares, Redeemed | shares 24,000,000                
Depositary Share, Redemption Price | $ / shares $ 25.00                
Depositary Share, Redemption, Declared And Unpaid Dividends | $ / shares $ 0.390625                
Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (43,000) $ (19,000) $ (74,000) $ (37,000)    
Series B Preferred Stock                  
Class of Stock [Line Items]                  
Depository Share, Percent Interest in Preferred Stock           0.025      
Preferred Stock, Shares Outstanding | shares       35,500   35,500      
Preferred Stock, Value, Outstanding       $ 23,000   $ 23,000      
Preferred Stock, Redemption Date           Jan. 15, 2017      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 7.21 $ 9.80 $ 14.56 $ 21.13    
Series B Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ 0 $ 0 $ 0 $ (1,000)    
Series C Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       100,000   100,000      
Preferred Stock, Value, Outstanding       $ 100,000   $ 100,000      
Preferred Stock, Redemption Date           Oct. 15, 2021      
Preferred Stock, Dividend Rate, Percentage | Rate           5.875%      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 14.69 $ 14.69 $ 29.38 $ 29.38    
Series C Preferred Stock | TCF Financial Corporation                  
Class of Stock [Line Items]                  
Preferred Stock, Dividend Rate, Percentage   5.70% 5.70%            
Preferred Stock, Par or Stated Value Per Share | $ / shares   $ 0.01 $ 0.01            
Series C Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (1,000) $ (2,000) $ (3,000) $ (3,000)    
Series E Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       5,000   5,000      
Preferred Stock, Value, Outstanding       $ 495,000   $ 495,000      
Preferred Stock, Redemption Date           Apr. 15, 2023      
Preferred Stock, Dividend Rate, Percentage | Rate           5.70%      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 1,425.00 $ 1,425.00 $ 2,850.00 $ 2,850.00    
Series E Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (7,000) $ (7,000) $ (14,000) $ (14,000)    
Series D Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       400,000   400,000      
Preferred Stock, Value, Outstanding       $ 386,000   $ 386,000      
Preferred Stock, Redemption Date           Apr. 15, 2021      
Preferred Stock, Dividend Rate, Percentage | Rate           6.25%      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 15.63 $ 15.63 $ 31.25 $ 31.25    
Series D Preferred Stock | Subsequent Event                  
Class of Stock [Line Items]                  
Preferred Stock, Dividend Rate, Percentage | Rate 6.25%                
Preferred Stock, Par or Stated Value Per Share | $ / shares $ 0.01                
Depositary Share, Redemption, Declared And Unpaid Dividends | $ / shares $ 15.625                
Series D Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (9,000) $ (10,000) $ (18,000) $ (19,000)    
Series D Preferred Stock2 [Member]                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       200,000   200,000      
Preferred Stock, Value, Outstanding       $ 199,000   $ 199,000      
Preferred Stock, Redemption Date           Apr. 15, 2021      
Preferred Stock, Dividend Rate, Percentage | Rate           6.25%      
Series F Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       5,000   5,000      
Preferred Stock, Value, Outstanding       $ 494,000   $ 494,000      
Preferred Stock, Redemption Date           Jul. 15, 2030      
Preferred Stock, Dividend Rate, Percentage | Rate           5.625%      
Preferred Stock, Liquidation Preference, Value       $ 100   $ 100      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 1,406.25 $ 0 $ 2,812.50 $ 0    
Series F Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (7,000) $ 0 $ (14,000) $ 0    
Series G Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       5,000   5,000      
Preferred Stock, Value, Outstanding       $ 494,000   $ 494,000      
Preferred Stock, Redemption Date           Oct. 15, 2027      
Preferred Stock, Dividend Rate, Percentage | Rate           4.45%      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 1,112.50 $ 0 $ 2,225.00 $ 0    
Series G Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (6,000) $ 0 $ (12,000) $ 0    
Series H Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       500,000   500,000      
Preferred Stock, Value, Outstanding       $ 485,000   $ 485,000      
Preferred Stock, Redemption Date           Apr. 15, 2026      
Preferred Stock, Dividend Rate, Percentage | Rate           4.50%      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 19.50 $ 0 $ 19.50 $ 0    
Series H Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (10,000) $ 0 $ (10,000) $ 0    
Series I Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Shares Outstanding | shares       7,000   7,000      
Preferred Stock, Value, Outstanding       $ 175,000   $ 175,000      
Preferred Stock, Redemption Date           Dec. 01, 2022      
Preferred Stock, Dividend Rate, Percentage | Rate     5.70%     5.70%      
Preferred Stock, Dividends Per Share, Declared | $ / shares       $ 356.25 $ 0 $ 356.25 $ 0    
Preferred Stock, Par or Stated Value Per Share | $ / shares   $ 0.01 $ 0.01            
Series I Preferred Stock | Retained Earnings [Member]                  
Class of Stock [Line Items]                  
Dividends, Preferred Stock, Cash       $ (3,000) $ 0 $ (3,000) $ 0    
London Interbank Offered Rate (LIBOR) | Series B Preferred Stock                  
Class of Stock [Line Items]                  
Preferred Stock, Basis Spread On Variable Rate       2.70%   2.70%