Convertible Preferred Stock, Shares Released From Restriction and Issued

No definition available.

Name:	aag_ConvertiblePreferredStockSharesReleasedFromRestrictionandIssued
Namespace Prefix:	aag_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Days after Effective Date Holders of Claims are Eligible to Receive Shares

+ References

No definition available.

+ Details

Name:	aag_NumberofDaysafterEffectiveDateHoldersofClaimsareEligibletoReceiveShares
Namespace Prefix:	aag_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Reserve for Disputed Claims

+ References

No definition available.

+ Details

Name:	aag_ReserveforDisputedClaims
Namespace Prefix:	aag_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Aggregate number of nonredeemable convertible preferred shares reserved for future issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_ConvertiblePreferredStockSharesReservedForFutureIssuance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

+ Details

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

+ Details

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

Name:	us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

Name:	us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

+ Details

Name:	us-gaap_StockRepurchasedDuringPeriodValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Legal Proceedings (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended			0 Months Ended		0 Months Ended			0 Months Ended	3 Months Ended	9 Months Ended	0 Months Ended
	Dec. 09, 2013	Dec. 09, 2013	Sep. 30, 2014 Non-Pension, Post-Employee Benefits (OPEB) Matter [Member]	Apr. 21, 2011 US Airways Sabre Matter [Member] claim	Sep. 30, 2011 US Airways Sabre Matter [Member] claim	Dec. 09, 2013 AA [Member]	Dec. 09, 2013 AA [Member]	Sep. 30, 2014 AA [Member] Non-Pension, Post-Employee Benefits (OPEB) Matter [Member]	Jul. 01, 2014 Common Stock [Member]	Sep. 30, 2014 Common Stock [Member]	Sep. 30, 2014 Common Stock [Member]	Jul. 01, 2014 Common Stock [Member] AA [Member]	Sep. 30, 2014 Common Stock [Member] AA [Member]
Loss Contingencies [Line Items]
Reserve for disputed claims		$ 755					$ 755
Number of days after effective date holders of claims are eligible to receive shares	180 days					180 days
Shares released from restriction and issued (shares)									2.9			2.9
Stock repurchased (in shares)									0.4	2.9	2.9	0.4
Aggregate stock repurchase price									19	113	113	19
Shares reserved for future issuance (shares)										27.5	27.5		27.5
Potential loss			$ 212					$ 212
Number of counts allowed to proceed (claims)					2
Number of complaints filed (claims)				4