2.2.0.25truefalse41301 - Disclosure - Share Based Payment and Other Benefits (Details)truefalseIn Thousands, except Per Share data, unless otherwise specifiedfalse1falsefalsetruefalse{us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis} : Restricted Stock Units [Member]
1/1/2011 - 3/31/2011
Duration_1_1_2011_To_3_31_2011_us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis_us-gaap_RestrictedStockMemberhttp://www.sec.gov/CIK0001141391duration2011-01-01T00:00:002011-03-31T00:00:00falsefalseRestricted Stock Units [Member]us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RestrictedStockMemberus-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli02falsefalseUSDtruefalse{us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis} : Stock Option [Member]
1/1/2011 - 3/31/2011
USD ($) / shares
$Duration_1_1_2011_To_3_31_2011_us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis_us-gaap_StockOptionMemberhttp://www.sec.gov/CIK0001141391duration2011-01-01T00:00:002011-03-31T00:00:00falsefalseStock Option [Member]us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_StockOptionMemberus-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxisexplicitMemberUnit15Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDtruefalse{us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis} : Performance-Based Restricted Stock [Member]
3/31/2011
USD ($) / shares
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1/1/2011 - 3/31/2011
Duration_1_1_2011_To_3_31_2011_us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis_ma_PerformanceUnitsMemberhttp://www.sec.gov/CIK0001141391duration2011-01-01T00:00:002011-03-31T00:00:00falsefalsePerformance Units [Member]us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxisxbrldihttp://xbrl.org/2006/xbrldima_PerformanceUnitsMemberus-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli05falsefalseUSDtruefalse{us-gaap_StatementClassOfStockAxis} : Class A Common Stock [Member]
3/31/2011
USD ($) / shares
USD ($)
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12/31/2010
USD ($)
USD ($) / shares
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 4
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph b(2)(a)
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph b(2)(b)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph c(1)
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