Financial Instruments And Risk Management (Effect Of Cash Flow Hedges On Financial Statements) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Fuel derivative contracts, Fair Value	$ 21	$ 65
Collateral already posted, aggregate fair value	0	0
Fuel Derivative Contracts (asset) [Member]
Derivatives, Fair Value [Line Items]
Fuel derivative contracts, Fair Value	21	65
Gross asset (liability) offset in Balance Sheet	16	0
Fuel derivative contracts, fair value, net	5	65
Accrued Liabilites [Member]
Derivatives, Fair Value [Line Items]
Gross asset (liability) offset in Balance Sheet	16	0
fuel derivative instruments, at fair value	$ 0	$ 0

Cash Flow Hedge Derivative Instrument Assets At Fair Value, Net

No definition available.

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- Definition

Cash Flow Hedge Derivative Instrument, Net Assets (Liabilities), at Fair Value

+ References

No definition available.

+ Details

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Namespace Prefix:	amr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value of all asset derivatives designated as cash flow hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value of all liability derivatives designated as cash flow hedging instruments.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959

+ Details

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Balance Type:	debit
Period Type:	instant

- Details

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