Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS (Asset and liability management) (Details)

v3.3.1.900
DERIVATIVE FINANCIAL INSTRUMENTS (Asset and liability management) (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Notional Disclosures [Abstract]    
Derivative, Notional Amount $ 14,127,100 $ 600,000
Cash Flow Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 9,048,000  
Fair Value Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 5,079,100  
Loan    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 9,048,000  
Loan | Cash Flow Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 9,048,000  
Loan | Fair Value Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 0  
Deposits    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 69,100  
Deposits | Cash Flow Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 0  
Deposits | Fair Value Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 69,100  
Subordinated notes    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 475,000  
Subordinated notes | Cash Flow Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 0  
Subordinated notes | Fair Value Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 475,000  
Other long-term debt    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 4,535,000  
Other long-term debt | Cash Flow Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount 0  
Other long-term debt | Fair Value Hedging    
Notional Disclosures [Abstract]    
Derivative, Notional Amount $ 4,535,000