Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments (Details)

v2.3.0.15
Derivative Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2011
Y
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge $ 1,621,912
Cash Flow Hedge 7,095,000
Notional Amount of Derivatives, Total 8,716,912
Additional information about the interest rate swaps used in companies Asset and Liability Management  
Notional Value 8,716,912
Average Maturity (years) 2.2
Fair Value 195,962
Weighted-Average Rate Receive 1.68%
Weighted-Average Rate Pay 0.55%
Loan [Member]
  
Gross notional values of derivatives used in companies Asset and Liability Management  
Fair Value Hedge 0
Cash Flow Hedge 7,045,000
Notional Amount of Derivatives, Total 7,045,000
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
Asset conversion swaps - Receive Fixed - Generic [Member]
  
Additional information about the interest rate swaps used in companies Asset and Liability Management  
Notional Value 7,095,000
Average Maturity (years) 1.9
Fair Value 80,447
Weighted-Average Rate Receive 1.49%
Weighted-Average Rate Pay 0.59%
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) 3.8
Fair Value 115,090
Weighted-Average Rate Receive 2.53%
Weighted-Average Rate Pay 0.36%
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) 9.0
Fair Value $ 425
Weighted-Average Rate Receive 2.98%
Weighted-Average Rate Pay 0.00%