Commitments, Contingencies and Guarantees (Legal Proceedings and Other) (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended						0 Months Ended								3 Months Ended
	Dec. 31, 2012	Dec. 09, 2013	Dec. 31, 2013 Catastrophic Liability [Member]	Dec. 31, 2013 Venezuelan bolívar fuerte	Feb. 21, 2014 Venezuelan bolívar fuerte Subsequent Event [Member]	Dec. 31, 2013 Venezuelan bolívar fuerte Cash and Cash Equivalents [Member]	Nov. 11, 2013 Merger Agreement [Domain]	Nov. 11, 2013 Chicago O’Hare International Airport [Member] gate	Nov. 11, 2013 Washington Reagan National Airport [Member] slot	Nov. 11, 2013 LaGuardia [Member] slot	Nov. 11, 2013 Boston Logan International Airport [Member] gate	Nov. 11, 2013 Dallas Love Field [Member] gate	Nov. 11, 2013 Los Angeles International Airport [Member] gate	Nov. 11, 2013 Miami International Airport [Member] gate	Dec. 31, 2012 AA [Member]	Dec. 31, 2013 AA [Member] Catastrophic Liability [Member]	Dec. 31, 2013 AA [Member] Venezuelan bolívar fuerte	Feb. 21, 2014 AA [Member] Venezuelan bolívar fuerte Subsequent Event [Member]	Dec. 31, 2013 AA [Member] Venezuelan bolívar fuerte Cash and Cash Equivalents [Member]	Dec. 31, 2013 US Airways Group [Member] Guarantee Obligations [Member]
Loss Contingencies [Line Items]
Reserve for disputed claims		$ 755,000,000
Maximum number of shares to be distributed in accordance with the Plan		756
Loss Contingency, Settlement Agreement, Terms							10 years
Loss Contingency, Settlement Agreement, Slot Pairs Divested									52	17
Loss Contingency, Settlement Agreement, Number of Gates Divested								2			2	2	2	2
Guarantor Obligations, Current Carrying Value																				43,000,000
Asset, Reporting Currency Denominated, Value						710,000,000													710,000,000
Foreign Currency Exchange Rate, Translation				6.04	11.80												6.04	11.80
Benefit from Settlement of Commercial Dispute	280,000,000														280,000,000
Deferred Credits and Other Liabilities			$ 1,000,000,000													$ 1,000,000,000