Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.1.900
DERIVATIVE FINANCIAL INSTRUMENTS (Asset and liability management) (Details Add Info)
$ in Thousands
Sep. 30, 2015
USD ($)
year
Dec. 31, 2014
USD ($)
Derivative [Line Items]    
Derivative, Notional Amount $ 14,127,100 $ 600,000
Additional information about the interest rate swaps used in companies Asset and Liability Management    
Notional Amount Of Interest Rate Derivatives $ 14,127,100  
Average Maturity (years) | year 1.8  
Fair Value $ 131,097  
Weighted-Average Rate Receive 1.10%  
Weighted-Average Rate Pay 0.30%  
Asset conversion swaps - Receive Fixed - Generic    
Additional information about the interest rate swaps used in companies Asset and Liability Management    
Notional Amount Of Interest Rate Derivatives $ 9,048,000  
Average Maturity (years) | year 1.2  
Fair Value $ 23,912  
Weighted-Average Rate Receive 0.81%  
Weighted-Average Rate Pay 0.28%  
Liability conversion swaps - Receive Fixed - Generic    
Additional information about the interest rate swaps used in companies Asset and Liability Management    
Notional Amount Of Interest Rate Derivatives $ 5,079,100  
Average Maturity (years) | year 2.9  
Fair Value $ 107,185  
Weighted-Average Rate Receive 1.61%  
Weighted-Average Rate Pay 0.32%  
Fair Value Hedging    
Derivative [Line Items]    
Derivative, Notional Amount $ 5,079,100  
Cash Flow Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 9,048,000  
Loan    
Derivative [Line Items]    
Derivative, Notional Amount 9,048,000  
Loan | Fair Value Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 0  
Loan | Cash Flow Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 9,048,000  
Deposits    
Derivative [Line Items]    
Derivative, Notional Amount 69,100  
Deposits | Fair Value Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 69,100  
Deposits | Cash Flow Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 0  
Subordinated notes    
Derivative [Line Items]    
Derivative, Notional Amount 475,000  
Subordinated notes | Fair Value Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 475,000  
Subordinated notes | Cash Flow Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 0  
Other long term debt    
Derivative [Line Items]    
Derivative, Notional Amount 4,535,000  
Other long term debt | Fair Value Hedging    
Derivative [Line Items]    
Derivative, Notional Amount 4,535,000  
Other long term debt | Cash Flow Hedging    
Derivative [Line Items]    
Derivative, Notional Amount $ 0