2.4.0.82401404 - Disclosure - Organization and Basis of Presentation Organization and Basis of Presentation (Fair Value, by Balance Sheet Grouping) (Details)truefalsefalse1false USDfalsefalseD2013Q1SUGSContributionhttp://www.sec.gov/CIK0001338613duration2013-01-01T00:00:002013-04-30T00:00:00sharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$2false USDfalsefalse$I2012Q4http://www.sec.gov/CIK0001338613instant2012-12-31T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDfalsefalse$I2011Q4http://www.sec.gov/CIK0001338613instant2011-12-31T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDtruefalse$I2012Q4_us-gaap_StatementScenarioAxis_us-gaap_SuccessorMemberhttp://www.sec.gov/CIK0001338613instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseSuccessorus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SuccessorMemberus-gaap_StatementScenarioAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5false USDtruefalse$I2011Q4_us-gaap_StatementScenarioAxis_us-gaap_SuccessorMemberhttp://www.sec.gov/CIK0001338613instant2011-12-31T00:00:000001-01-01T00:00:00falsefalseSuccessorus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SuccessorMemberus-gaap_StatementScenarioAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6false USDtruefalse$I2010Q4_us-gaap_StatementScenarioAxis_us-gaap_SuccessorMemberhttp://www.sec.gov/CIK0001338613instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseSuccessorus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SuccessorMemberus-gaap_StatementScenarioAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$7false USDtruefalse$I2010Q2SD_us-gaap_StatementScenarioAxis_us-gaap_SuccessorMemberhttp://www.sec.gov/CIK0001338613instant2010-05-25T00:00:000001-01-01T00:00:00falsefalseSuccessorus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SuccessorMemberus-gaap_StatementScenarioAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8false USDtruefalse$I2010Q2SD_us-gaap_BusinessAcquisitionAxis_rgp_EteAcquisitionMember_us-gaap_StatementScenarioAxis_us-gaap_SuccessorMemberhttp://www.sec.gov/CIK0001338613instant2010-05-25T00:00:000001-01-01T00:00:00falsefalseETE Acquisitionus-gaap_BusinessAcquisitionAxisxbrldihttp://xbrl.org/2006/xbrldirgp_EteAcquisitionMemberus-gaap_BusinessAcquisitionAxisexplicitMemberfalsefalseSuccessorus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SuccessorMemberus-gaap_StatementScenarioAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$9false truefalseD2013Q1SUGSContribution_us-gaap_PartnerCapitalComponentsAxis_rgp_ClassFUnitsMemberhttp://www.sec.gov/CIK0001338613duration2013-01-01T00:00:002013-04-30T00:00:00falsefalseClass F Units [Member]us-gaap_PartnerCapitalComponentsAxisxbrldihttp://xbrl.org/2006/xbrldirgp_ClassFUnitsMemberus-gaap_PartnerCapitalComponentsAxisexplicitMembersharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli010false USDtruefalse$D2013Q1SUGSContribution_dei_LegalEntityAxis_rgp_EteMember_rgp_BusinessAcquisitionPeriodInformationAxis_rgp_SUGSContributionMemberhttp://www.sec.gov/CIK0001338613duration2013-01-01T00:00:002013-04-30T00:00:00falsefalseSUGS Contribution [Member]rgp_BusinessAcquisitionPeriodInformationAxisxbrldihttp://xbrl.org/2006/xbrldirgp_SUGSContributionMemberrgp_BusinessAcquisitionPeriodInformationAxisexplicitMemberfalsefalseETEdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldirgp_EteMemberdei_LegalEntityAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 4us-gaap_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse15000000001500000000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Business Acquisition, Cost of Acquired Entity, Purchase Price2false 4rgp_FairValueOfLimitedPartnersInterestrgp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse20740000002074000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of limited partners interest, based on the number of outstanding Partnership common units and the trading price on May 26, 2010No definition available.false2Fair value of limited partners’ interest, based on the number of outstanding Partnership common units and the trading price on May 26, 20103false 4rgp_FairValueOfConsiderationsPaidrgp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse305000000305000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFair Value of considerations paid for general partner interest as of May 26, 2010No definition available.false2Fair value of consideration paid for general partner interest4false 4rgp_FairValueOfNoncontrollingInterestrgp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse3100000031000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of Noncontrolling interest as of May 26, 2010No definition available.false2Noncontrolling interest5false 4us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterestus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1falsefalsefalse00falsefalsefalse2truefalsefalse53400000005340000000falsefalsefalse3truefalsefalse35310000003531000000falsefalsefalse4truefalsefalse53400000005340000000falsefalsefalse5truefalsefalse35310000003531000000falsefalsefalse6truefalsefalse32940000003294000000falsefalsefalse7truefalsefalse24100000002410000000falsefalsefalse8truefalsefalse24100000002410000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of partners' capital (deficit), including portions attributable to both the parent and noncontrolling interests. Excludes temporary equity and is sometimes called permanent equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. true2Total partners’ capital and noncontrolling interest6false 4rgp_WorkingCapitalrgp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse-3000000-3000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryWorking Capital: current assets less current liabilitiesNo definition available.false2Working capital7false 4rgp_GatheringAndTransmissionSystemsFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse471000000471000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of the gathering and transmission systems segment as of of the purchase dateNo definition available.false2Gathering and transmission systems8false 4rgp_CompressionEquipmentFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse746000000746000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of the compression equipment segment as of of the purchase date.No definition available.false2Compression equipment9false 4rgp_GasPlantsAndBuildingsFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse117000000117000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of Gas plants and buildings as of of the purchase dateNo definition available.false2Gas plants and buildings10false 4rgp_OtherPropertyPlantAndEquipmentFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse100000000100000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of other property, plant and equipment as of of the purchase dateNo definition available.false2Other property, plant and equipment11false 4rgp_FairValueConstructionInProgressrgp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse114000000114000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of construction in progress at date of purchaseNo definition available.false2Construction-in-progress12false 4rgp_FairValueOfOtherLongTermAssetsrgp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse3800000038000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of other long-term assets as of the date of purcahseNo definition available.false2Other long-term assets13false 4rgp_InvestmentInUnconsolidatedAffiliateFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse-739000000-739000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of investment in unconsolidated affiliate as of of the purchase dateNo definition available.false2Investment in unconsolidated affiliate14false 4rgp_IntangibleAssetsFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse-666000000-666000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of Intangible assets as of of the purchase dateNo definition available.false2Intangible assets15false 4rgp_GoodwillFairValuergp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse790000000790000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value of goodwill as of of the purchase dateNo definition available.false2Goodwill16false 4rgp_TotalAssetsIncludingWorkingCapitalrgp_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse37780000003778000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryTotal Assets Including Working CapitalNo definition available.true2Total assets including working capital17false 4rgp_SeriesPreferredUnitsrgp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse-71000000-71000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value as of the purchase date of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of preferred shares (regardless of class), preferred partnership units (regardless of class), preferential membership interests, or any other form of preferred equity regardless of investee entity legal form.No definition available.false2Series A Preferred Units18false 4us-gaap_LongTermDebtFairValueus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse12400000001240000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe 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 definition available.false2Fair value of long-term debt19false 4rgp_OtherLongTermLiabilitiesFairValuergp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse-57000000-57000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value, as of the date of purchase, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).No definition available.false2Other long-term liabilities20false 4rgp_PartnersCapitalFairValuergp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedTotalLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse24100000002410000000falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of the amount of ownership interest of different classes of partners in a limited partnership at a specific point in time, generally in connection with the purchase or sale of an entity.No definition available.true2Total fair value of partners’ capital21false 4us-gaap_StockIssuedDuringPeriodSharesAcquisitionsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3137241931372419falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesNumber of shares of stock issued during the period pursuant to acquisitions.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 53 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false1Stock Issued During Period, Shares, Acquisitions22false 4rgp_IssuanceofcommonunitsandClassFunitsinconnectionwithSUGSAcquisitionrgp_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9truefalsefalse62744836274483falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesIssuance of common units and Class F units in connection with SUGS AcquisitionNo definition available.false1Issuance of common units and Class F units in connection with SUGS Acquisition23false 4us-gaap_BusinessAcquisitionCostOfAcquiredEntityCashPaidus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse600000000600000000falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of cash paid to acquire the entity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph f(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Business Acquisition, Cost of Acquired Entity, Cash Paid24false 4rgp_EstimatedClosingAdjustmentsrgp_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse107000000107000000falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of cash consideration adjusted for closing adjustments related to a business acquisition.No definition available.false2Estimated Closing Adjustments25false 4rgp_AnnualFeesToAffiliatesrgp_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10truefalsefalse1000000010000000USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of fees to be paid to affiliates under a services agreement.No definition available.false2Annual Fees To AffiliatesfalseOrganization and Basis of Presentation Organization and Basis of Presentation (Fair Value, by Balance Sheet Grouping) (Details) (USD $)NoRoundingNoRoundingUnKnownUnKnowntruefalsefalseSheethttp://www.regencyenergy.com/role/OrganizationAndBasisOfPresentationOrganizationAndBasisOfPresentationFairValueByBalanceSheetGroupingDetails1025