2.2.0.7 false Non-Cash Investing and Financing Activities - Additional Information (Detail) (USD $) 149 - Disclosure - Non-Cash Investing and Financing Activities - 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 $ 5 3 ma_RemainingLeaseTermsWeightedAverage ma false na instant Remaining lease terms, weighted average false false false false false false false false false false false false 1 false true false false 10 10 false false false xbrli:decimalItemType decimal Remaining lease terms, weighted average No authoritative reference available. false 6 3 ma_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassBuildingAndLand ma false debit instant Capital Leases, Lessee Balance Sheet, Assets by Major Class, Building and Land false false false false false false false false false false false false 1 true true false false 154000000 154 false false false xbrli:monetaryItemType monetary Capital Leases, Lessee Balance Sheet, Assets by Major Class, Building and Land No authoritative reference available. false 1 2 false Millions UnKnown UnKnown false true