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Entities Under Common Control, Fair Value Units Received On Transfer Of Interest In Subsidiary

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Number of refineries

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Partners' Capital Account, Units, Amount Authorized

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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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.

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Total change in each class of partners' capital accounts during the year due to the sale of units. All partners include general, limited and preferred partners.

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Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

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The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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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.

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Phillips 66 Partners LP (Narrative)(Details)		1 Months Ended					4 Months Ended	12 Months Ended
Phillips 66 Partners LP (Narrative)(Details)	Dec. 31, 2016 USD ($) refinery	Oct. 31, 2016 USD ($) refinery	Aug. 31, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($)	May 31, 2016 USD ($) $ / shares shares	Mar. 31, 2016 USD ($)	Sep. 30, 2016 USD ($) shares	Dec. 31, 2016 USD ($) refinery	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 30, 2016 mi	Feb. 28, 2015 USD ($)	Dec. 31, 2013 USD ($)
Subsidiary or Equity Method Investee [Line Items]
Number of refineries \| refinery	9	4						9
Issuance of Phillips 66 Partners LP common units								$ 791,000,000	$ 384,000,000
Public's ownership interest in Phillips 66 Partners reflected as a noncontrolling interest	$ 1,335,000,000							1,335,000,000	838,000,000
Increase in consolidated cash								(363,000,000)	(2,133,000,000)	$ (193,000,000)
Increase in consolidated equity	23,725,000,000							23,725,000,000	23,938,000,000	22,037,000,000			$ 22,392,000,000
Noncontrolling Interest [Member]
Subsidiary or Equity Method Investee [Line Items]
Issuance of Phillips 66 Partners LP common units								483,000,000	384,000,000
Increase in consolidated equity	$ 1,335,000,000							1,335,000,000	838,000,000	$ 447,000,000			$ 442,000,000
Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Entities under common control, ownership percentage transferred						25.00%
Entities under common control, fair value of consideration received on transfer of interest in subsidiary		$ 1,300,000,000				$ 236,000,000
Entities under common control, note receivable received on transfer of interest in subsidiary						212,000,000
Entities under common control, ownership percentage transferred, wholly owned					100.00%
Cash consideration		1,109,000,000
Common And General Partner Units \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Entities under common control, fair value units received on transfer of interest in subsidiary		196,000,000				$ 24,000,000
Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Limited partner interest in Phillips 66 Partners owned by public, percentage	39.00%
Phillips 66 Partners LP \| Senior Notes
Subsidiary or Equity Method Investee [Line Items]
Senior notes		$ 1,125,000,000.000										$ 1,100,000,000.0
Energy Equipment \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Entities under common control, ownership percentage transferred					75.00%
Sweeny Frac LLC And Phillips 66 Plymouth LLC \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Entities under common control, note receivable received on transfer of interest in subsidiary					$ 675,000,000
Sweeny Frac LLC And Phillips 66 Plymouth LLC \| Common And General Partner Units \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Entities under common control, fair value units received on transfer of interest in subsidiary					$ 100,000,000
Common Units \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Phillips 66 Partners IPO, common units issued (in shares) \| shares			6,000,000		12,650,000
Phillips 66 Partners offering price, per unit (in dollars per share) \| $ / shares			$ 50.22		$ 52.40
Net proceeds			$ 299,000,000		$ 656,000,000
Partners' capital account, units, amount authorized				$ 250,000,000
Phillips 66 Partners common units issued (in shares) \| shares							346,152
Issuance of Phillips 66 Partners LP common units							$ 19,000,000
Phillips 66 Partners
Subsidiary or Equity Method Investee [Line Items]
Increase in consolidated cash								2,100,000,000
Increase in consolidated debt	$ 1,100,000,000							1,100,000,000
Increase in consolidated equity	$ 791,000,000							791,000,000
Phillips 66 Partners \| Phillips 66 Partners LP
Subsidiary or Equity Method Investee [Line Items]
Limited partnership interest in Phillips 66 Partners, percentage	59.00%
General partnership interest in Phillips 66 Partners, percentage	2.00%
Phillips 66 Partners \| Phillips 66 Partners LP \| Noncontrolling Interest [Member]
Subsidiary or Equity Method Investee [Line Items]
Public's ownership interest in Phillips 66 Partners reflected as a noncontrolling interest	$ 1,306,000,000							$ 1,306,000,000	$ 809,000,000
Majority Shareholder
Subsidiary or Equity Method Investee [Line Items]
Entities under common control, fair value of consideration received on transfer of interest in subsidiary					$ 775,000,000
NGL Logistics System
Subsidiary or Equity Method Investee [Line Items]
Length of pipeline \| mi											500