Equity Method Investment, Effective Ownership Percent

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- Definition

Percentage investment the public holds of limited common units in the limited partnership (LP).

+ References

No definition available.

+ Details

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- Definition

Limited Liability Company LLC Or Limited Partnership LP Members Or Limited Partners Ownership Interest Held By Public, Shares

+ References

No definition available.

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- Definition

Limited Liability Company LLC Or Limited Partnership LP Members Or Limited Partners Ownership Interest, Shares

+ References

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- Definition

Percentage Of Ownership

+ References

No definition available.

+ Details

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

Monetary value of the issuance of new units of limited partnership interest in a public offering, net of offering costs. This is a parenthetical disclosure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-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=27012166&loc=d3e187085-122770

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- Definition

Amount of cash inflow (outflow) from financing activities classified as other.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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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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Phillips 66 Partners LP (Narrative) (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		46 Months Ended
	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020
Subsidiary or Equity Method Investee [Line Items]
Other		$ (24)	$ 307
Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Limited partner interest in Phillips 66 Partners owned by public, percentage	26.00%
Phillips 66 Partners LP \| Variable Interest Entity, Primary Beneficiary
Subsidiary or Equity Method Investee [Line Items]
Limited partnership interest in Phillips 66 Partners, percentage	74.00%
Gray Oak Holdings LLC \| Third Party
Subsidiary or Equity Method Investee [Line Items]
Other		$ 23
Gray Oak Holdings LLC \| Third Party
Subsidiary or Equity Method Investee [Line Items]
Percentage of ownership	35.00%	35.00%		35.00%
Common Units \| At The Market Offering Program \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Partners' capital account, public sale of units net of offering costs		$ 2	$ 32	$ 494
Common Units \| Phillips 66 Partners LP \| Variable Interest Entity, Primary Beneficiary
Subsidiary or Equity Method Investee [Line Items]
Ownership interest (in shares)	170.0	170.0		170.0
Preferred Units \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Ownership interest (in shares)	13.8	13.8		13.8
Gray Oak Pipeline LLC \| Variable Interest Entity, Primary Beneficiary \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Effective ownership percent	42.25%	42.25%		42.25%
Gray Oak Pipeline LLC \| Gray Oak Holdings LLC \| Variable Interest Entity, Primary Beneficiary \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Percentage of ownership	65.00%	65.00%		65.00%