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drilling rig commitments3false0apc_OperatingLeaseAgreementsNoncancelableCommitmentsapcfalsecreditinstantAmount of various commitments under noncancelable operating lease agreements.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse766000000766000000falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of various commitments under noncancelable operating lease agreements.No authoritative reference available.falsefalseOperating lease agreements noncancelable commitments4false0us-gaap_OperatingLeasesFutureMinimumPaymentsDueus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse21350000002135000000[1]falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe total of future contractually required payments on leases defined as 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[Member]apc_RegionReportingInformationByRegionAxisxbrldihttp://xbrl.org/2006/xbrldiapc_GulfOfMexicoMemberapc_RegionReportingInformationByRegionAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseSpar Platform and Production Vessels [Member] | Gulf of Mexico [Member]16false0us-gaap_OperatingLeasesFutureMinimumPaymentsDueus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse423000000423000000falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe total of future contractually required payments on leases defined as operating.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) falsefalseOperating leases future minimum payments due17false0apc_OperatingLeaseResidualValueGuaranteeapcfalsecreditinstantThe amount the lessee is obligated to pay related to the guarantee of residual value at the end of the useful life of a...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse3700000037000000falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount the lessee is obligated to pay related to the guarantee of residual value at the end of the useful life of a company's operating leases.No authoritative reference available.falsefalseOperating lease residual value guarantee1Total future minimum lease payments have not been reduced for future sublease income of $ 11 million.316Commitments - Oil and Gas 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