DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES Notional Amounts (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Foreign currency exchange contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	$ 8,650	[1]
Foreign currency option contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	16,000	[1]
Interest rate swaps [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	185,013	[1]
Fuel contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount (in thousands of barrels)	41,000	[1]
Cash Flow Hedging [Member] | Foreign currency exchange contracts [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	23,500	[1]
Cash Flow Hedging [Member] | Foreign currency option contracts [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	$ 32,000	[1]

[1] All notional amounts are stated in thousands of dollars except fuel contracts which are denominated in thousands of barrels.