XML 63 R51.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Guarantees (Narrative) (Details) - USD ($) $ in Millions | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2016 | Dec. 31, 2015 | Dec. 31, 2012
Guarantees (Textual) [Abstract] |  |  |
Environmental accruals included in recorded carrying amount | $ 486 | $ 485 |
Other Guarantees [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Maximum potential amount of future payments under the guarantees | 112 |  |
Indemnifications [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Carrying amount of indemnifications | 193 |  |
Asset Retirement Obligations And Accrued Environmental Cost [Member] | Indemnifications [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Environmental accruals included in recorded carrying amount | $ 98 |  |
Maximum [Member] | Other Guarantees [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Term of the guarantees, in years | 8 years |  |
Merey Sweeny [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Maximum potential amount of future payments under the guarantees | $ 179 |  |
Merey Sweeny [Member] | MSLP 8.85% Senior Notes [Member] | Guarantees of Joint Venture Debt [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Percentage of guarantee |  |  | 100.00%
Maximum potential amount of future payments under the guarantees | 140 |  |
Facilities [Member] | Residual Value Guarantees [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Maximum potential amount of future payments under the guarantees | $ 554 |  |
Facilities [Member] | Maximum [Member] | Other Guarantees [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Lessee leasing arrangements, operating leases, term of contract | 5 years |  |
Railcar and Airplane [Member] | Residual Value Guarantees [Member] |  |  |
Guarantees (Textual) [Abstract] |  |  |
Maximum potential amount of future payments under the guarantees | $ 376 |  |

X
- Definition Guarantees. + References No definition available. + Details
Name: | psx_GuaranteesTextualAbstract
Namespace Prefix: | psx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of guarantee. + References No definition available. + Details
Name: | psx_PercentageOfGuarantee
Namespace Prefix: | psx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Terms Of Guarantees Outstanding + References No definition available. + Details
Name: | psx_TermsOfGuaranteesOutstanding1
Namespace Prefix: | psx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
Name: | us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_GuaranteeTypeOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_IndemnificationGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=psx_AssetRetirementObligationsAndAccruedEnvironmentalCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=psx_MereySweenyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=psx_MslpEightPointEightFiveSeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=psx_GuaranteesOfJointVentureDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=psx_FacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=psx_ResidualValueGuaranteesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=psx_RailcarandAirplaneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |