The estimated amount of net gains (losses) on cash flow hedges reclassified to earnings from accumulated other comprehensive income within the next 12 months.

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- Definition

Derivative financial instruments designated as fair value hedges.

+ Details

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- Definition

Maximum duration for commodity futures and swap contracts.

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- Definition

Maximum duration for foreign currency contracts.

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- Definition

Maximum duration for interest rate forward contracts.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

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-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13476-108611

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Aggregate notional amount of all derivatives designated as cash flow hedging instruments. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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- Definition

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959

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-Publisher FASB

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-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

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Fair Value Measurements And Financial Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Jun. 30, 2011
Derivative [Line Items]
Maximum duration for commodity futures and swap contracts, months	21
Maximum duration for interest rate forward contracts, months	6
Maximum duration for foreign currency contracts, months	12
Derivative financial instruments designated as fair value hedges	0	0
Estimated amount of the existing net gain to be reclassified into earnings, in the next 12 months	$ 1
Notional value of commodity derivatives	22
Notional value of interest rate forward contracts	300
Estimated fair value of long-term debt	2,290		2,303
Jet Fuel Commodity Contract [Member]
Derivative [Line Items]
Notional value of commodity derivatives	20
Crude Oil Commodity Contract [Member]
Derivative [Line Items]
Notional value of commodity derivatives	2
Canada Foreign Currency Exchange Contracts [Member]
Derivative [Line Items]
Notional value	32
Australia Foreign Currency Exchange Contracts [Member]
Derivative [Line Items]
Notional value	$ 18