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Derivatives (Details) In Thousands, unless otherwise specified	Sep. 30, 2011 Commodity contract (long) 2011 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract (long) 2011 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (long) 2012 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract (long) 2012 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (long) 2013 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract (long) 2013 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (long) 2014 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (short) 2011 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract (short) 2011 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (short) 2012 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract (short) 2012 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (short) 2013 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract (short) 2013 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract (short) 2014 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Commodity contract inventory (short) 2011 GAL USD ($) USDPerGAL	Sep. 30, 2011 Commodity contract inventory (short) 2011 MT USD ($) USDPerMetricTon	Sep. 30, 2011 Foreign currency contracts (long) 2011 BRL USD ($) USDPerBRL	Sep. 30, 2011 Foreign currency contracts (long) 2011 BRL	Sep. 30, 2011 Foreign currency contracts (long) 2011 CLP USD ($) USDPerCLP	Sep. 30, 2011 Foreign currency contracts (long) 2011 CLP	Sep. 30, 2011 Foreign currency contracts (long) 2011 GBP USD ($) USDPerGBP	Sep. 30, 2011 Foreign currency contracts (long) 2011 GBP GBP (£)	Sep. 30, 2011 Foreign currency contracts (long) 2011 MXN USD ($) USDPerMXN	Sep. 30, 2011 Foreign currency contracts (long) 2011 MXN	Sep. 30, 2011 Foreign currency contracts (long) 2011 SGD USD ($) USDPerSGD	Sep. 30, 2011 Foreign currency contracts (long) 2011 SGD	Sep. 30, 2011 Foreign currency contracts (long) UYU USDPerUYU	Sep. 30, 2011 Foreign currency contracts (long) UYU USD ($)	Sep. 30, 2011 Foreign currency contracts (short) 2011 CAD USD ($) USDPerCAD	Sep. 30, 2011 Foreign currency contracts (short) 2011 CAD	Sep. 30, 2011 Foreign currency contracts (short) 2011 EUR USD ($) USDPerEUR	Sep. 30, 2011 Foreign currency contracts (short) 2011 EUR EUR (€)	Sep. 30, 2011 Foreign currency contracts (short) 2011 GBP USD ($) USDPerGBP	Sep. 30, 2011 Foreign currency contracts (short) 2011 GBP GBP (£)	Sep. 30, 2011 Foreign currency contracts (short) 2011 MXN USDPerMXN	Sep. 30, 2011 Foreign currency contracts (short) 2011 AUD USD ($) USDPerAUD	Sep. 30, 2011 Foreign currency contracts (short) 2011 AUD	Sep. 30, 2011 Foreign currency contracts (short) 2011 COP USD ($) USDPerCOP	Sep. 30, 2011 Foreign currency contracts (short) 2011 COP	Sep. 30, 2011 Derivatives designated as hedging instruments USD ($)	Sep. 30, 2011 Derivatives not designated as hedging instruments USD ($)
Derivative instruments, at their respective fair value positions
Fair Value Hedge, Notional value of commodity contracts	1,423,000	81,000	610,000	155,000				3,696,000							38,183,000	86,000
Mark-to-Market Prices of fair value hedge commodity contracts	(0.16)	(2.40)	(0.18)	(11.65)				0.11							0.14	17.77
Mark-to-Market value of fair value hedge commodity contracts	$ (232)	$ (196)	$ (109)	$ (1,805)				$ 422							$ 5,396	$ 1,519
Non-Designated, Notional value of commodity contracts	62,201,000	2,721,000	19,038,000	1,878,000	2,153,000	58,000	3,000	63,021,000	2,086,000	71,642,000	1,185,000	5,408,000	14,000	3,000
Mark-to-Market Prices of non-designated commodity contracts	0.00	(12.74)	(0.01)	(16.07)	(0.08)	(22.86)	(61.85)	0.02	17.96	0.11	19.45	0.26	50.24	63.59
Mark-to-Market value of non-designated commodity contracts	(309)	(34,676)	(243)	(30,182)	(173)	(1,328)	(186)	1,271	37,454	7,648	23,063	1,403	703	191
Non-Designated, Notional amount of foreign currency contracts																		407		2,640,202		18,451		126,381		1,231	9,160			5,200		7,500		71,968	47,863		382		13,000,000
Mark-to-Market Prices of non-designated foreign currency contracts																	(0.04)	(0.04)	0.00	0.00	(0.03)	(0.03)	0.00	0.00	(0.01)	(0.01)	0.00	0.00	0.02	0.02	0.02	0.02	0.04	0.04	0.00	0.07	0.07	0.00	0.00
Mark-to-Market value of non-designated foreign currency contracts																	(18)		(396)		(574)		112		(12)			(30)	103		140		2,980			29		571
Mark-to-Market, Total																																								$ 4,995	$ 7,541

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