Express Expenses (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Express Expenses [Abstract]
Aircraft fuel and related taxes	$ 905	$ 625	$ 2,587	$ 1,775
Salaries and related costs	577	579	1,726	1,708
Aircraft rent	160	168	486	508
Aircraft maintenance	163	160	508	479
Other rent and landing fees	144	143	418	413
Selling expenses	123	118	343	320
Special items, net	13	3	22	(1)
Depreciation and amortization	58	65	178	189
Other expenses	319	309	938	907
Airline, Capacity Purchase Arrangements	794	694	2,376	2,027
US Airways, Inc. [Member] | Express Expenses [Member]
Express Expenses [Abstract]
Aircraft fuel and related taxes	273	197	804	563
Salaries and related costs	6	6	18	18
Capacity purchases	450	428	1,342	1,267
Other rent and landing fees	29	27	86	80
Selling expenses	45	48	135	128
Other expenses	21	21	64	67
Airline, Capacity Purchase Arrangements	824	727	2,449	2,123
Express Expenses [Member]
Express Expenses [Abstract]
Aircraft fuel and related taxes	273	197	803	562
Salaries and related costs	67	63	204	189
Capacity purchases	255	272	782	809
Aircraft rent	13	13	39	39
Aircraft maintenance	55	19	151	55
Other rent and landing fees	35	33	104	96
Selling expenses	45	48	135	128
Special items, net			1	(1)
Depreciation and amortization	6	6	18	18
Other expenses	45	43	139	132
Airline, Capacity Purchase Arrangements	794	694	2,376	2,027
US Airways, Inc. [Member]
Express Expenses [Abstract]
Aircraft fuel and related taxes	905	625	2,587	1,775
Salaries and related costs	577	579	1,726	1,708
Aircraft rent	160	168	486	508
Aircraft maintenance	163	160	508	479
Other rent and landing fees	144	143	418	413
Selling expenses	123	118	343	320
Special items, net	13	3	22	(1)
Depreciation and amortization	61	67	185	196
Other expenses	329	316	963	927
Airline, Capacity Purchase Arrangements	$ 824	$ 727	$ 2,449	$ 2,123