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true false false false Foreign exchange derivative contracts [Member] us-gaap_DerivativesFairValueByDerivativeInstrumentRiskAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ForeignExchangeContractMember us-gaap_DerivativesFairValueByDerivativeInstrumentRiskAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 11 USD true false false false Foreign exchange derivative contracts [Member] us-gaap_DerivativesFairValueByDerivativeInstrumentRiskAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ForeignExchangeContractMember us-gaap_DerivativesFairValueByDerivativeInstrumentRiskAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 5 Aggregated notional amount and the fair value of derivative instruments 3 nyx_AggregatedNotionalAmountAndFairValueOfDerivativeInstrumentsAbstract nyx false na duration Aggregated notional amount and the fair value of derivative instruments. false false false false false true false false false false false 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false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 true true false false 484000000 484 true false false 11 true true false false 484000000 484 true false false xbrli:monetaryItemType monetary Aggregate notional amount of all derivatives not designated as a hedging instrument. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 false 9 Notional amount of derivatives designated as hedging instruments 4 us-gaap_NotionalAmountOfNetInvestmentHedgeInstruments us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 180000000 180 true false false 11 false true false false 180000000 180 true false false xbrli:monetaryItemType monetary Aggregate notional amount of all derivatives designated as a hedge of a net investment in a foreign operation. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. No authoritative reference available. false 10 Fair value of derivative instruments designated as hedging instruments, Asset 4 us-gaap_DerivativeAssetDesignatedAsHedgingInstrumentFairValue us-gaap true debit instant No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false true false false -2000000 -2 true false false 4 false true false false -2000000 -2 true false false 5 false false false false 0 0 true false false 6 false true false false 1000000 1 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 0 0 true false false 11 false true false false 0 0 true false false xbrli:monetaryItemType monetary Fair value of a derivative asset (or nonderivative instrument) that is designated and qualifies as a hedging instrument, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. 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The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. 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