2.2.0.25truefalse157 - Disclosure - Detail of Rent Expense (Detail)truefalseIn Millionsfalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $eol_PE2163----1010-K0023_STD_365_20101231_0http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170pureStandardhttp://www.xbrl.org/2003/instancepure0YearStandardhttp://www.mcdonalds.com/20101231Yearmcd0sharesStandardhttp://www.xbrl.org/2003/instanceshares0iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0USDUSD$2falsefalseUSDfalsefalse1/1/2009 - 12/31/2009 USD ($) USD ($) / shares $eol_PE2163----1010-K0023_STD_365_20091231_0http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170sharesStandardhttp://www.xbrl.org/2003/instanceshares0iso4217_USD_per_sharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instanceshares0pureStandardhttp://www.xbrl.org/2003/instancepure0YearStandardhttp://www.mcdonalds.com/20101231Yearmcd0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 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12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_411808x418189_438603x422895http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseU.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_UnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised {us-gaap_StatementBusinessSegmentsAxis} : U.S. 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_411808x418189_438603x422895http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseU.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_UnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised {us-gaap_StatementBusinessSegmentsAxis} : U.S. 1/1/2008 - 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12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_411808x418189_438603x422896http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseU.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_UnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated {us-gaap_StatementBusinessSegmentsAxis} : U.S. 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_411808x418189_438603x422896http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseU.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_UnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$9falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated {us-gaap_StatementBusinessSegmentsAxis} : U.S. 1/1/2008 - 12/31/2008 USD ($) $eol_PE2163----1010-K0023_STD_366_20081231_0_411808x418189_438603x422896http://www.sec.gov/CIK0000063908duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseU.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_UnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition avail able.No authoritative reference available.falsefalse8true0mcd_LeasesDisclosureLineItemsmcdfalsenadurationLeases Disclosure [Line Items]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3f alsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLeases Disclosure [Line Items]falsefalse9false0mcd_RentExpensemcdfalsedebitdurationRent Expensefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse6040000060.4falsefalsefalsefalsefalse2truefalsefalse6520000065.2falsefalsefalsefalsefalse3truefalsefalse7370000073.7falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRent ExpenseNo authoritative reference available.falsefalse10false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.mcdonalds.com/taxonomy/role/disclosuredetailofrentexpense1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse10falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised {us-gaap_StatementBusinessSegmentsAxis} : Outside the U.S. 1/1/2010 - 12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_411808x427181_438603x422895http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseOutside the U.S .us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_OutsideUnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$11falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised {us-gaap_StatementBusinessSegmentsAxis} : Outside the U.S. 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_411808x427181_438603x422895http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseOutside the U.S .us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_OutsideUnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$12falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised {us-gaap_StatementBusinessSegmentsAxis} : Outside the U.S. 1/1/2008 - 12/31/2008 USD ($) $eol_PE2163----1010-K0023_STD_366_20081231_0_411808x427181_438603x422895http://www.sec.gov/CIK0000063908duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseOutside the U.S .us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_OutsideUnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse11true0mcd_LeasesDisclosureLineItemsmcdfalsenadurationLeases Disclosure [Line Items]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLeases Disclosure [Line Items]falsefalse12false0mcd_RentExpensemcdfalsedebitdurationRent Expensefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse463500000463.5falsefalsefalsefalsefalse2truefalsefalse431400000431.4falsefalsefalsefalsefalse3truefalsefalse409400000409.4falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRent ExpenseNo authoritative reference available.falsefalse13false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.mcdonalds.com/taxonomy/role/disclosuredetailofrentexpense1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00 falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse13falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated {us-gaap_StatementBusinessSegmentsAxis} : Outside the U.S. 1/1/2010 - 12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_411808x427181_438603x422896http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseOutside the U.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_OutsideUnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$14falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated {us-gaap_StatementBusinessSegmentsAxis} : Outside the U.S. 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_411808x427181_438603x422896http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseOutside the U.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_OutsideUnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$15falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated {us-gaap_StatementBusinessSegmentsAxis} : Outside the U.S. 1/1/2008 - 12/31/2008 USD ($) $eol_PE2163----1010-K0023_STD_366_20081231_0_411808x427181_438603x422896http://www.sec.gov/CIK0000063908duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberfalsefalseOutside the U.S.us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldimcd_OutsideUnitedStatesMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse14true0mcd_LeasesDisclosureLineItemsmcdfalsenadurationLeases Disclosure [Line Items]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLeases Disclosure [Line Items]falsefalse15false0mcd_RentExpensemcdfalsedebitdurationRent Expensefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse545000000545.0falsefalsefa lsefalsefalse2truefalsefalse506900000506.9falsefalsefalsefalsefalse3truefalsefalse532000000532.0falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRent ExpenseNo authoritative reference available.falsefalse16false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.mcdonalds.com/taxonomy/role/disclosuredetailofrentexpense1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse16falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated 1/1/2010 - 12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_438603x422896http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003 /iso4217USDiso42170USDUSD$17falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_438603x422896http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003 /iso4217USDiso42170USDUSD$18falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Company-operated 1/1/2008 - 12/31/2008 USD ($) $eol_PE2163----1010-K0023_STD_366_20081231_0_438603x422896http://www.sec.gov/CIK0000063908duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseCompany-operatedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_CompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003 /iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse17true0mcd_LeasesDisclosureLineItemsmcdfalsenadurationLeases Disclos ure [Line Items]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2< /Id>falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLeases Disclosure [Line Items]falsefalse18false0mcd_RentExpensemcdfalsedebitdurationRent Expensefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse605400000605.4falsefalsefalsefalsefalse2truefalsefalse572100000572.1falsefalsefalsefalsefalse3truefalsefalse605700000605.7falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRent ExpenseNo authoritative reference available.falsefalse19false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.mcdonalds.com/taxonomy/role/disclosuredetailofrentexpense1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse19falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised 1/1/2010 - 12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_438603x422895http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2 003/iso4217USDiso42170USDUSD$20falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_438603x422895http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2 003/iso4217USDiso42170USDUSD$21falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Total Franchised 1/1/2008 - 12/31/2008 USD ($) $eol_PE2163----1010-K0023_STD_366_20081231_0_438603x422895http://www.sec.gov/CIK0000063908duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseTotal Franchisedmcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_NonCompanyOperatedRestaurantMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2 003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse20true0mcd_LeasesDisclosureLineItemsmcdfalsenadurationLeases Disc losure [Line Items]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLeases Disclosure [Line Items]falsefalse21false0mcd_RentExpensemcdfalsedebitdurationRent Expensefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse 1truefalsefalse873200000873.2falsefalsefalsefalsefalse2truefalsefalse825300000825.3falsefalsefalsefalsefalse3truefalsefalse784100000784.1falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRent ExpenseNo authoritative reference available.falsefalse22false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.mcdonalds.com/taxonomy/role/disclosuredetailofrentexpense1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse22falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Other Rent Expense 1/1/2010 - 12/31/2010 USD ($) $eol_PE2163----1010-K0023_STD_365_20101231_0_438603x424559http://www.sec.gov/CIK0000063908duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseOther Rent Expensemcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_AllOtherMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$23falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Other Rent Expense 1/1/2009 - 12/31/2009 USD ($) $eol_PE2163----1010-K0023_STD_365_20091231_0_438603x424559http://www.sec.gov/CIK0000063908duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseOther Rent Expensemcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_AllOtherMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$24falsefalseUSDtruefalse{mcd_RestaurantOwnershipTypeAxis} : Other Rent Expense 1/1/2008 - 12/31/2008 USD ($) $eol_PE2163----1010-K0023_STD_366_20081231_0_438603x424559http://www.sec.gov/CIK0000063908duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseOther Rent Expensemcd_RestaurantOwnershipTypeAxisxbrldihttp://xbrl.org/2006/xbrldimcd_AllOtherMembermcd_RestaurantOwnershipTypeAxisexplicitMemberiso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse23true0mcd_LeasesDisclosureLineItemsmcdfalsenadurationLeases Disclosure [Line I tems]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLeases Disclosure [Line Items]falsefalse24false0mcd_RentExpensemcdfalsedebitdurationRent Expensefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse9810000098.1falsetruefalsefalsefalse2truefalsefalse9890000098.9falsetruefalsefalsefalse3truefalsefalse101800000101.8falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRent ExpenseNo authoritative reference available.falsefalse323Detail of Rent Expense (Detail) (USD $)HundredThousandsUnKnownUnKnownUnKnownfalsetrue