Other Comprehensive Income Loss (Details) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Other comprehensive income (loss)
Net income (loss)	$ 92	$ 279	$ (23)	$ 235
Reversal of net unrealized gains on available-for-sale securities	(2)		(3)
Recognition of net realized gains on sale of available-for sale securities		(4)		(52)
Net unrealized losses on available-for-sale securities				(1)
Pension and other postretirement benefits		(1)	(1)	(2)
Total comprehensive income (loss)	90	274	(27)	180
Accumulated other comprehensive income
Pension and other postretirement benefits	31		31		32
Available-for-sale securities	(21)		(21)		(18)
Accumulated other comprehensive income	10		10		14
US Airways, Inc. [Member]
Other comprehensive income (loss)
Net income (loss)	119	295	36	272
Reversal of net unrealized gains on available-for-sale securities	(2)		(3)
Recognition of net realized gains on sale of available-for sale securities		(4)		(52)
Net unrealized losses on available-for-sale securities				(1)
Pension and other postretirement benefits		(1)	(1)	(2)
Total comprehensive income (loss)	117	290	32	217
Accumulated other comprehensive income
Pension and other postretirement benefits	37		37		38
Available-for-sale securities	(21)		(21)		(18)
Accumulated other comprehensive income	$ 16		$ 16		$ 20

Accumulated appreciation or loss, net of tax, in value of the total of unsold securities at the end of an accounting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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The total of net (gain) loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at fiscal year-end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, and unrealized gains and losses on certain investments in debt and equity securities as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ 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 AICPA
-Name Accounting Principles Board Opinion (APB)
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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-Publisher SEC
-Name Regulation S-X (SX)
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This item represents the change in net unrealized holding gain or loss on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A5
-Appendix A

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The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Emerging Issues Task Force (EITF)
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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Net changes to accumulated comprehensive income during the period related to benefit plans, after tax.

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Pre tax reclassification adjustment for gains or losses realized upon the sale of securities.

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Gross appreciation or the gross loss in value of the total of unsold available-for-sale securities during the period being reported (except when designated as a fair value hedge).

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