Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Net cash provided by operating activities	$ 465	$ 789
Cash flows from investing activities:
Purchases of property and equipment	(316)	(133)
Purchases of marketable securities	(30)	(180)
Sales of marketable securities	82	268
Decrease (increase) in long-term restricted cash	(20)	91
Proceeds from sale-leaseback transactions and dispositions of property and equipment	1	3
Net cash provided by (used in) investing activities	(283)	49
Cash flows from financing activities:
Repayments of debt and capital lease obligations	(516)	(367)
Proceeds from issuance of debt	531	120
Deferred financing costs	(13)	(5)
Net cash provided by (used in) financing activities	2	(252)
Net increase in cash and cash equivalents	184	586
Cash and cash equivalents at beginning of period	1,859	1,299
Cash and cash equivalents at end of period	2,043	1,885
Non-cash investing and financing activities:
Interest payable converted to debt	25	33
Note payables issued for aircraft purchases	0	111
Net unrealized loss on available-for-sale securities	0	1
Deposit applied to principal repayment on debt	0	(31)
Supplemental information:
Interest paid, net of amounts capitalized	151	181
Income taxes paid	0	1
US Airways, Inc. [Member]
Net cash provided by operating activities	439	749
Cash flows from investing activities:
Purchases of property and equipment	(305)	(122)
Purchases of marketable securities	(30)	(180)
Sales of marketable securities	82	268
Decrease (increase) in long-term restricted cash	(20)	91
Proceeds from sale-leaseback transactions and dispositions of property and equipment	1	3
Net cash provided by (used in) investing activities	(272)	60
Cash flows from financing activities:
Repayments of debt and capital lease obligations	(500)	(282)
Proceeds from issuance of debt	531	90
Deferred financing costs	(13)	(3)
Net cash provided by (used in) financing activities	18	(195)
Net increase in cash and cash equivalents	185	614
Cash and cash equivalents at beginning of period	1,856	1,209
Cash and cash equivalents at end of period	2,041	1,823
Non-cash investing and financing activities:
Interest payable converted to debt	25	33
Note payables issued for aircraft purchases	0	111
Net unrealized loss on available-for-sale securities	0	1
Deposit applied to principal repayment on debt	0	(31)
Supplemental information:
Interest paid, net of amounts capitalized	107	132
Income taxes paid	$ 0	$ 1