Derivatives (Details) In Thousands, unless otherwise specified	Sep. 30, 2013 Derivatives designated as hedging instruments Cash flow hedges Foreign currency contracts Long 2013 EUR USD ($)	Sep. 30, 2013 Derivatives designated as hedging instruments Cash flow hedges Foreign currency contracts Long 2013 EUR	Sep. 30, 2013 Derivatives designated as hedging instruments Fair value hedges USD ($)	Sep. 30, 2013 Derivatives designated as hedging instruments Fair value hedges Commodity contracts for inventory Long 2013 USD ($) bbl	Sep. 30, 2013 Derivatives designated as hedging instruments Fair value hedges Commodity contracts for inventory Short 2013 USD ($) bbl	Sep. 30, 2013 Derivatives designated as hedging instruments Fair value hedges Commodity contracts for inventory Short 2014 USD ($) bbl	Sep. 30, 2013 Derivatives not designated as hedging instruments USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 AUD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 AUD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 BRL USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 BRL	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 CAD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 CAD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 CLP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 CLP	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 COP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 COP	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 DKK USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 DKK	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 EUR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 EUR EUR (€)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 GBP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 GBP GBP (£)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 JPY USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 JPY JPY (¥)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 MXN USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 MXN	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 NOK USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 NOK	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 PLN USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 PLN	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 SGD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 SGD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 ZAR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2013 ZAR	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 DKK USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 DKK	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 GBP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 GBP GBP (£)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 JPY USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 JPY JPY (¥)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 SGD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Long 2014 SGD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 AUD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 AUD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 BRL USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 BRL	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 CAD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 CAD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 CLP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 CLP	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 COP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 COP	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 EUR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 EUR EUR (€)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 GBP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 GBP GBP (£)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 INR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 INR	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 JPY USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 JPY JPY (¥)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 MXN USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 MXN	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 NOK USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 NOK	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 PLN USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 PLN	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 RON USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 RON	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 SGD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 SGD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 ZAR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2013 ZAR	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 CAD USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 CAD	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 EUR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 EUR EUR (€)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 GBP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 GBP GBP (£)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 NOK USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 NOK	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 ZAR USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2014 ZAR	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2015 GBP USD ($)	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency contracts Short 2015 GBP GBP (£)	Sep. 30, 2013 Derivatives not designated as hedging instruments Commodity contracts Long 2013 USD ($) bbl	Sep. 30, 2013 Derivatives not designated as hedging instruments Commodity contracts Long 2014 USD ($) bbl	Sep. 30, 2013 Derivatives not designated as hedging instruments Commodity contracts Long 2015 USD ($) bbl	Sep. 30, 2013 Derivatives not designated as hedging instruments Commodity contracts Short 2013 USD ($) bbl	Sep. 30, 2013 Derivatives not designated as hedging instruments Commodity contracts Short 2014 USD ($) bbl	Sep. 30, 2013 Derivatives not designated as hedging instruments Commodity contracts Short 2015 USD ($) bbl
Derivative instruments, at their respective fair value positions
Notional value of commodity contracts	333,000	333,000		322,000	2,293,000	12,000																																																																																20,078,000	11,275,000	532,000	16,540,000	8,445,000	590,000
Non-Designated, Notional amount of foreign currency contracts									1,905		2,730		15,941		813,772		34,247,444		17,197		€ 7,330		£ 73,437		¥ 205,458		1,290,707		16,897		2,055		23,530		33,118		4,146		£ 1,750		¥ 88,534		5,434		5,461		134		26,615		1,542,720		28,827,902		€ 32,293		£ 141,332		111,367		¥ 467,248		1,147,876		39,031		3,127		12,791		35,063		93,162		1,391		€ 94		£ 14,240		1,384		13,570		£ 2,500
Weighted Average Fixed Price	1.24			112.71	118.61	115.93		0.91		2.32		1.04		506.18		1,916.12		5.62		1.32		1.54		98.93		12.99		6.08		3.20		1.27		10.05		5.51		1.58		98.16		1.25		0.90		2.41		1.04		509.97		1,919.49		1.32		1.55		60.45		98.88		12.96		6.02		3.28		3.38		1.27		10.05		1.03		1.35		1.56		6.05		10.22		1.59		72.44	82.69	118.22	89.59	100.43	90.20
Weighted Average Mark-to-Market	0.11			(0.78)	2.56	6.50		0.03		0.00		0.01		0.00		0.00		0.00		0.03		0.08		0.00		0.00		0.00		0.01		0.01		0.00		0.00		0.06		0.00		0.00		(0.03)		(0.03)		(0.01)		0.00		0.00		(0.04)		(0.08)		0.00		0.00		0.00		0.00		(0.02)		(0.01)		(0.01)		0.00		0.00		(0.01)		(0.06)		0.00		0.00		(0.02)		0.15	0.02	3.71	0.23	0.63	(2.97)
Fair value of cash flow hedge commodity contracts	38
Fair value hedge commodity contracts				(252)	5,879	78
Fair value of non-designated commodity contracts																																																																																						2,967	218	1,972	3,848	5,338	(1,755)
Mark-to-Market value of non-designated foreign currency contracts								48		(6)		169		(4)		(10)		76		202		5,615		12		(1,501)		16		16		211		37		(1)		104		1		(3)		(169)		(4)		(318)		(30)		(32)		(1,334)		(10,989)		70		(40)		1,335		(62)		(54)		(133)		(284)		(59)		1		(1)		(856)		(1)		(7)		(52)
Mark-to-Market, Total			$ 5,705				$ 4,551