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v3.20.2

Condensed Consolidating Financial Information (Narrative) (Details) | 6 Months Ended
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Jun. 30, 2020
Phillips 66 Company | Phillips 66 Company |
Condensed Financial Statements, Captions [Line Items] |
Ownership interest percentage | 100.00%

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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. + References No definition available. + Details
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- Definition The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |