2.2.0.7 true Fair Value - Additional Information (Detail) (USD $) 151 - Disclosure - Fair Value - Additional Information (Detail) true false In Millions false false 1 USD false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 pure Standard http://www.xbrl.org/2003/instance pure 0 shares Standard http://www.xbrl.org/2003/instance shares 0 $ false 2 USD false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 pure Standard http://www.xbrl.org/2003/instance pure 0 shares Standard http://www.xbrl.org/2003/instance shares 0 $ 2 2 ma_PercentageOfFairValueOfInvestmentsUsingDiscountedCashFlowPricingModel ma false na instant Percentage of fair value of investments using Discounted Cash Flow pricing model false false false false false false false false false false false false 1 false true false false 0.15 0.15 false false false 2 false true false false 0.15 0.15 false false false us-types:percentItemType pure Percentage of fair value of investments using Discounted Cash Flow pricing model No authoritative reference available. false 3 2 us-gaap_LongTermDebt us-gaap true credit instant No definition available. false false false false false false false false false false false false 1 true true false false 21000000 21 false false false 2 true true false false 22000000 22 false false false xbrli:monetaryItemType monetary Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 false 4 2 ma_LongTermDebtFairValue ma false credit instant The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical... false false false false false false false false false false false false 1 false true false false 21000000 21 false false false 2 false true false false 22000000 22 false false false xbrli:monetaryItemType monetary The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No authoritative reference available. false 5 2 us-gaap_LitigationReserve us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 444000000 444 false false false 2 false true false false 870000000 870 false false false xbrli:monetaryItemType monetary Aggregate carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs. No authoritative reference available. false 6 0 na true na na No definition available. false true false false false false false false false false false http://www.mastercard.com/taxonomy/role/disclosurefairvalueadditionalinformation false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false false 3 USD true false false false Portion at Fair Value, Fair Value Disclosure us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_PortionAtFairValueFairValueDisclosureMember us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis explicitMember iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 4 USD true false false false Portion at Fair Value, Fair Value Disclosure us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_PortionAtFairValueFairValueDisclosureMember us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis explicitMember iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ na No definition available. No authoritative reference available. false 10 2 us-gaap_LitigationReserve us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 453000000 453 false false false 2 true true false false 895000000 895 false false false xbrli:monetaryItemType monetary Aggregate carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs. No authoritative reference available. false 2 6 false Millions UnKnown UnKnown false true