Related Party Transactions - Promissory Notes with Our General Partner (Details) - PAGP - Related Party Promissory Notes - General Partner - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Related Party Transaction [Line Items] | ||
| Related party notes receivable | $ 1,317 | $ 1,339 |
| Related party notes payable | $ 1,317 | $ 1,339 |
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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after allowance for credit loss, of receivable classified as other and noncurrent. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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