Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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+ Details

Derivative Financial Instruments (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Sep. 30, 2011 Cash Flow Hedges: Interest rate swaps	Dec. 31, 2010 Cash Flow Hedges: Interest rate swaps	Sep. 30, 2011 Cash Flow Hedges: Interest rate swaps through July 2037	Jun. 30, 2010 Cash Flow Hedges: Interest rate swaps through October 2036	Sep. 30, 2011 Free-Standing Derivatives: Commodity swaps	Dec. 31, 2010 Free-Standing Derivatives: Commodity swaps	Sep. 30, 2011 Free-Standing Derivatives: Credit default swaps-protection sold	Dec. 31, 2010 Free-Standing Derivatives: Credit default swaps-protection sold	Sep. 30, 2011 Free-Standing Derivatives: Total rate of return swaps	Dec. 31, 2010 Free-Standing Derivatives: Total rate of return swaps	Sep. 30, 2011 Free-Standing Derivatives: Foreign exchange forward contracts	Dec. 31, 2010 Free-Standing Derivatives: Foreign exchange forward contracts	Sep. 30, 2011 Free-Standing Derivatives: Foreign exchange options	Dec. 31, 2010 Free-Standing Derivatives: Foreign exchange options	Sep. 30, 2011 Free-Standing Derivatives: Common stock warrants	Dec. 31, 2010 Free-Standing Derivatives: Common stock warrants
Summary of aggregate notional amount and estimated net fair value of the derivative instruments
Notional amount	$ 440,458		$ 440,458		$ 472,635	$ 508,333	$ 483,333	$ 25,000	$ 100,000			$ 33,500	$ 13,500			$ (231,582)	$ (154,405)	$ 130,207	$ 130,207
Estimated Fair Value	(97,891)		(97,891)		(57,047)	(100,849)	(58,365)			3,322	(226)	(3,653)	492	159	104	(16,004)	(17,296)	15,909	14,791	3,225	3,453
Net losses recognized in other comprehensive (loss) income related to derivatives in cash flow hedging relationships
Losses recognized in other comprehensive (loss) income on cash flow hedges	$ (40,636)	$ (17,609)	$ (42,463)	$ (44,432)