Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments (Asset and liability management) (Details)

v2.4.0.6
Derivative Financial Instruments (Asset and liability management) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Y
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge $ 1,621,912
Cash Flow Hedge 7,085,000
Notional Amount of Derivatives, Total 8,706,912
Additional information about the interest rate swaps used in companies Asset and Liability Management  
Notional Value 8,706,912
Average Maturity (years) 2.0
Fair Value 175,932
Weighted-Average Rate Receive 1.68%
Weighted-Average Rate Pay 0.62%
Asset conversion swaps - Receive Fixed - Generic [Member]
 
Additional information about the interest rate swaps used in companies Asset and Liability Management  
Notional Value 7,085,000
Average Maturity (years) 1.6
Fair Value 64,408
Weighted-Average Rate Receive 1.49%
Weighted-Average Rate Pay 0.64%
Liability conversion swaps - Receive Fixed - Generic [Member]
 
Additional information about the interest rate swaps used in companies Asset and Liability Management  
Notional Value 1,591,912
Average Maturity (years) 3.6
Fair Value 111,205
Weighted-Average Rate Receive 2.53%
Weighted-Average Rate Pay 0.55%
Liability Conversion Swaps - Receive Fixed - Callable
 
Additional information about the interest rate swaps used in companies Asset and Liability Management  
Notional Value 30,000
Average Maturity (years) 8.8
Fair Value 319
Weighted-Average Rate Receive 2.98%
Weighted-Average Rate Pay 0.18%
Loan [Member]
 
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge 0
Cash Flow Hedge 7,035,000
Notional Amount of Derivatives, Total 7,035,000
Investment securities [Member]
 
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge 0
Cash Flow Hedge 50,000
Notional Amount of Derivatives, Total 50,000
Deposits [Member]
 
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge 988,912
Cash Flow Hedge 0
Notional Amount of Derivatives, Total 988,912
Subordinated notes
 
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge 598,000
Cash Flow Hedge 0
Notional Amount of Derivatives, Total 598,000
Other long-term debt
 
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge 35,000
Cash Flow Hedge 0
Notional Amount of Derivatives, Total $ 35,000