XML 65 R54.htm IDEA: XBRL DOCUMENT
v3.26.1

Partners' Capital and Distributions - Consolidated Joint Venture Distributions (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Noncontrolling Interest |  |  |  |
Distributions | $ 449 | $ 418 | $ 898 | $ 874
Noncontrolling Interests |  |  |  |
Noncontrolling Interest |  |  |  |
Distributions | 366 | 343 | 733 | 724
Cash Distribution | Noncontrolling Interests | Consolidated Joint Venture Entities |  |  |  |
Noncontrolling Interest |  |  |  |
Distributions | 102 | 97 | 205 | 229
Cash Distribution | Noncontrolling Interests | Permian JV |  |  |  |
Noncontrolling Interest |  |  |  |
Distributions | 81 | 78 | 165 | 183
Cash Distribution | Noncontrolling Interests | Cactus II |  |  |  |
Noncontrolling Interest |  |  |  |
Distributions | 17 | 16 | 32 | 38
Cash Distribution | Noncontrolling Interests | Red River |  |  |  |
Noncontrolling Interest |  |  |  |
Distributions | $ 4 | $ 3 | $ 8 | $ 8

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total distributions to each class of partners (i.e., general, limited and preferred partners). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480100/505-10-S45-8 + Details
Name: | us-gaap_PartnersCapitalAccountDistributions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_PartnerCapitalComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis=us-gaap_CashDistributionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=pagp_ConsolidatedJointVentureEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pagp_PlainsOryxPermianBasinLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pagp_CactusIIPipelineLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pagp_RedRiverPipelineCompanyLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |