2.2.0.25falsefalse06142 - Disclosure - Supplemental Balance Sheet Information (Details 2)truefalseIn Millionsfalse1falsefalseUSDfalsefalse12/31/2010 USD ($) $BalanceAsOf_31Dec2010http://www.sec.gov/CIK0000042542instant2010-12-31T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2falsefalseUSDfalsefalse12/31/2009 USD ($) $BalanceAsOf_31Dec2009http://www.sec.gov/CIK0000042542instant2009-12-31T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3true0us-gaap_OtherAssetsNoncurrentAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseOther Assets4false0gr_RotableAssetsIncludedInOtherAssetsNoncurrentgrfalsedebitinstantRotable assets.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse130300000130.3falsetruefalsefalsefalse2truefalsefalse133000000133.0falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRotable assets.No authoritative reference available.falsefalseRotable assets - net of accumulated amortization of $ 145.4 million and $131.5 million at December 31, 2010 and 2009, respectively5false0gr_ParticipationPaymentsIncludedInOtherAssetsNoncurrentgrfalsedebitinstantParticipation payments.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse116700000116.7falsefalsefalsefalsefalse2truefalsefalse117400000117.4falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryParticipation payments.No authoritative reference available.falsefalseParticipation payments - net of accumulated amortization of $12 million and $15 million at December 31, 2010 and 2009, respectively6false0us-gaap_AssetsHeldInTrustNoncurrentus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse115100000115.1falsefalsefalsefalsefalse2truefalsefalse104900000104.9falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 17 -Subparagraph c falsefalseRabbi trust assets, including cash surrender value of life insurance contracts7false0gr_SalesIncentivesIncludedInOtherAssetsNoncurrentgrfalsedebitinstantSales incentives.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse5560000055.6falsefalsefalsefalsefalse2truefalsefalse6040000060.4falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetarySales incentives.No authoritative reference available.falsefalseSales incentives - net of accumulated amortization of $67.2 million and $58.9 million at December 31, 2010 and 2009, respectively8false0us-gaap_DerivativeInstrumentsAndHedgesNoncurrentus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse4390000043.9falsefalsefalsefalsefalse2truefalsefalse6930000069.3falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 4 falsefalseForeign currency hedges9false0gr_FlightCertificationCostsIncludedInOtherAssetsNoncurrentgrfalsedebitinstantFlight certification costs.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse4280000042.8falsefalsefalsefalsefalse2truefalsefalse4500000045.0falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFlight certification costs.No authoritative reference available.falsefalseFlight certification costs - net of accumulated amortization of $9.4 million and $9.5 million at December 31, 2010 and 2009, respectively10false0gr_EntryFeesIncludedInOtherAssetsNoncurrentgrfalsedebitinstantEntry fees.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2330000023.3falsefalsefalsefalsefalse2truefalsefalse2450000024.5falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryEntry fees.No authoritative reference available.falsefalseEntry fee - net of accumulated amortization of $4.7 million and $3.5 million at December 31, 2010 and 2009, respectively11false0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1780000017.8falsefalsefalsefalsefalse2truefalsefalse2240000022.4falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership.No authoritative reference available.falsefalseInvestments in affiliated companies12false0gr_AllOtherAssetsNoncurrentgrfalsedebitinstantAll other noncurrent assets.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse7910000079.1falsefalsefalsefalsefalse2truefalsefalse6200000062.0falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAll other noncurrent assets.No authoritative reference available.truefalseAll other13false0us-gaap_OtherAssetsNoncurrentus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse624600000624.6falsetruefalsefalsefalse2truefalsefalse638900000638.9falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet due to materiality considerations. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 truefalseOther assets211Supplemental Balance Sheet Information (Details 2) (USD $)HundredThousandsUnKnownUnKnownUnKnownfalsetrue