Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY (Details)

v3.10.0.1
SHAREHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended
Sep. 30, 2018
Feb. 27, 2018
Feb. 22, 2018
Dec. 31, 2017
Equity, Class of Treasury Stock [Line Items]        
Preferred Stock, Shares Outstanding 740,500     1,098,006
Preferred Stock, Value, Outstanding $ 1,203      
Preferred stock $ 1,203     $ 1,071
Series A Preferred Stock        
Equity, Class of Treasury Stock [Line Items]        
Preferred stock, dividend payment rate, variable 0.085      
Series B Preferred Stock        
Equity, Class of Treasury Stock [Line Items]        
Preferred Stock, Shares Outstanding 35,500      
Preferred Stock, Value, Outstanding $ 23      
Preferred stock, dividend payment rate, variable 3-mo. LIBOR + 270 bps      
Preferred Stock, Redemption Date Jan. 15, 2017      
Preferred Class A [Member]        
Equity, Class of Treasury Stock [Line Items]        
Convertible Preferred Stock, Shares Issued upon Conversion     83.668  
Series C Preferred Stock        
Equity, Class of Treasury Stock [Line Items]        
Preferred Stock, Shares Outstanding 100,000      
Preferred Stock, Value, Outstanding $ 100      
Preferred stock, dividend payment rate, variable 0.05875      
Preferred Stock, Redemption Date Jan. 15, 2022      
Series E Preferred Stock        
Equity, Class of Treasury Stock [Line Items]        
Preferred Stock, Liquidation Preference Per Share   $ 100,000    
Depositary Shares, Liquidation Preference Per Share   $ 1,000    
Preferred Stock, Shares Outstanding 5,000      
Preferred Stock, Value, Outstanding $ 495      
Preferred stock, dividend payment rate, variable 0.057      
Preferred stock   $ 500    
Depositary Shares, Issued 500,000      
Preferred Stock, Par or Stated Value Per Share   $ 0.01    
Payments of Stock Issuance Costs $ 5      
Preferred Stock, Redemption Date Apr. 15, 2023      
Series D Preferred Stock        
Equity, Class of Treasury Stock [Line Items]        
Preferred Stock, Shares Outstanding 400,000      
Preferred Stock, Value, Outstanding $ 386      
Preferred stock, dividend payment rate, variable 0.0625      
Preferred Stock, Redemption Date Jul. 15, 2021      
Series D Preferred Stock2        
Equity, Class of Treasury Stock [Line Items]        
Preferred Stock, Shares Outstanding 200,000      
Preferred Stock, Value, Outstanding $ 199      
Preferred stock, dividend payment rate, variable 0.0625      
Preferred Stock, Redemption Date Jul. 15, 2021