XML 42 R134.htm IDEA: XBRL DOCUMENT v2.4.1.9
Condensed Consolidating Financial Information (Cash Flow) (Details) (USD $)
In Millions, unless otherwise specified
10 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]        
Net cash provided by (used in) continuing operating activities   $ 3,527us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations $ 5,942us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations $ 4,259us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Net cash provided by discontinued operations   2us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations 85us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations 37us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
Net Cash Provided by (Used in) Operating Activities   3,529us-gaap_NetCashProvidedByUsedInOperatingActivities 6,027us-gaap_NetCashProvidedByUsedInOperatingActivities 4,296us-gaap_NetCashProvidedByUsedInOperatingActivities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]        
Capital expenditures and investments   (3,773)psx_CapitalExpendituresAndInvestments [1] (1,779)psx_CapitalExpendituresAndInvestments [1] (1,701)psx_CapitalExpendituresAndInvestments
Proceeds from asset dispositions   1,244psx_ProceedsFromAssetDispositions 1,214psx_ProceedsFromAssetDispositions 286psx_ProceedsFromAssetDispositions
Advances/loans—related parties   (3)us-gaap_PaymentsForAdvanceToAffiliate (65)us-gaap_PaymentsForAdvanceToAffiliate (100)us-gaap_PaymentsForAdvanceToAffiliate
Collection of advances/loans—related parties     165us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate  
Other   238us-gaap_PaymentsForProceedsFromOtherInvestingActivities 48us-gaap_PaymentsForProceedsFromOtherInvestingActivities  
Net cash provided by (used in) continuing investing activities   (2,294)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (417)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (1,515)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Net cash used in discontinued operations   (2)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations (27)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations (20)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
Net Cash Provided by (Used in) Investing Activities   (2,296)us-gaap_NetCashProvidedByUsedInInvestingActivities (444)us-gaap_NetCashProvidedByUsedInInvestingActivities (1,535)us-gaap_NetCashProvidedByUsedInInvestingActivities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]        
Contributions from (distributions to) ConocoPhillips       (5,255)psx_ProceedsFromPaymentsToParentCompanyNet
Proceeds from Issuance of Debt   2,487us-gaap_ProceedsFromIssuanceOfDebt   7,794us-gaap_ProceedsFromIssuanceOfDebt
Repayment of debt   (49)us-gaap_RepaymentsOfDebt (1,020)us-gaap_RepaymentsOfDebt (1,210)us-gaap_RepaymentsOfDebt
Issuance of common stock   1psx_ProceedsFromPaymentsForIssuanceOfCommonStock 6psx_ProceedsFromPaymentsForIssuanceOfCommonStock 47psx_ProceedsFromPaymentsForIssuanceOfCommonStock
Repurchase of common stock   (2,282)us-gaap_PaymentsForRepurchaseOfCommonStock (2,246)us-gaap_PaymentsForRepurchaseOfCommonStock (356)us-gaap_PaymentsForRepurchaseOfCommonStock
Share exchange—PSPI transaction   (450)psx_CashDivestedfromDeconsolidationFinancingActivities    
Dividends paid on common stock   (1,062)us-gaap_PaymentsOfDividendsCommonStock (807)us-gaap_PaymentsOfDividendsCommonStock (282)us-gaap_PaymentsOfDividendsCommonStock
Distributions to noncontrolling interests   (30)us-gaap_PaymentsToMinorityShareholders (10)us-gaap_PaymentsToMinorityShareholders (5)us-gaap_PaymentsToMinorityShareholders
Net proceeds from issuance of Phillips 66 Partners LP common units     404us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits  
Other   23us-gaap_ProceedsFromPaymentsForOtherFinancingActivities [1] (6)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities [1] (34)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
Net cash provided by (used in) continuing financing activities   (1,362)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations (3,679)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations 699us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Net cash provided by (used in) discontinued operations   0us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations 0us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations 0us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations
Net Cash Provided by (Used in) Financing Activities   (1,362)us-gaap_NetCashProvidedByUsedInFinancingActivities (3,679)us-gaap_NetCashProvidedByUsedInFinancingActivities 699us-gaap_NetCashProvidedByUsedInFinancingActivities
Effect of Exchange Rate Changes on Cash and Cash Equivalents   (64)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 22us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 14us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Net Change in Cash and Cash Equivalents 28us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (193)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 1,926us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 3,474us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at beginning of year   5,400us-gaap_CashAndCashEquivalentsAtCarryingValue 3,474us-gaap_CashAndCashEquivalentsAtCarryingValue 0us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and Cash Equivalents at End of Year 5,207us-gaap_CashAndCashEquivalentsAtCarryingValue 5,207us-gaap_CashAndCashEquivalentsAtCarryingValue 5,400us-gaap_CashAndCashEquivalentsAtCarryingValue 3,474us-gaap_CashAndCashEquivalentsAtCarryingValue
Consolidating Adjustments [Member]        
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]        
Net cash provided by (used in) continuing operating activities   (504)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(80)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
 
Net Cash Provided by (Used in) Operating Activities   (504)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(80)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
 
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]        
Capital expenditures and investments   989psx_CapitalExpendituresAndInvestments
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
[1] 19psx_CapitalExpendituresAndInvestments
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
[1] 10psx_CapitalExpendituresAndInvestments
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Proceeds from asset dispositions   (403)psx_ProceedsFromAssetDispositions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
   
Collection of advances/loans—related parties       (7)us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Net cash provided by (used in) continuing investing activities   586us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
19us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
3us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Net Cash Provided by (Used in) Investing Activities   586us-gaap_NetCashProvidedByUsedInInvestingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
19us-gaap_NetCashProvidedByUsedInInvestingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
3us-gaap_NetCashProvidedByUsedInInvestingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]        
Repayment of debt       7us-gaap_RepaymentsOfDebt
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Dividends paid on common stock   443us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
72us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
 
Distributions to controlling interests   323us-gaap_PartnersCapitalAccountDistributions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
8us-gaap_PartnersCapitalAccountDistributions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
 
Other   (848)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
[1] (19)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
[1] (10)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Net cash provided by (used in) continuing financing activities   (82)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
61us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(3)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Net Cash Provided by (Used in) Financing Activities   (82)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
61us-gaap_NetCashProvidedByUsedInFinancingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
(3)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
Phillips 66 [Member]        
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]        
Net cash provided by (used in) continuing operating activities   (47)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
5us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(42)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net Cash Provided by (Used in) Operating Activities   (47)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
5us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(42)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]        
Intercompany lending activities   1,397us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
[2] 4,055us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,376us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net cash provided by (used in) continuing investing activities   1,397us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
4,055us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,376us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net Cash Provided by (Used in) Investing Activities   1,397us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
4,055us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
1,376us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]        
Contributions from (distributions to) ConocoPhillips       (7,469)psx_ProceedsFromPaymentsToParentCompanyNet
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Proceeds from Issuance of Debt   2,459us-gaap_ProceedsFromIssuanceOfDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
  7,794us-gaap_ProceedsFromIssuanceOfDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Repayment of debt     (1,000)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(1,000)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Issuance of common stock   1psx_ProceedsFromPaymentsForIssuanceOfCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
6psx_ProceedsFromPaymentsForIssuanceOfCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
47psx_ProceedsFromPaymentsForIssuanceOfCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Repurchase of common stock   (2,282)us-gaap_PaymentsForRepurchaseOfCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(2,246)us-gaap_PaymentsForRepurchaseOfCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(356)us-gaap_PaymentsForRepurchaseOfCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Share exchange—PSPI transaction   (450)psx_CashDivestedfromDeconsolidationFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
   
Dividends paid on common stock   (1,062)us-gaap_PaymentsOfDividendsCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(807)us-gaap_PaymentsOfDividendsCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(282)us-gaap_PaymentsOfDividendsCommonStock
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Other   (16)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
[1] (13)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
[1] (68)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net cash provided by (used in) continuing financing activities   (1,350)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(4,060)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(1,334)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Net Cash Provided by (Used in) Financing Activities   (1,350)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(4,060)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
(1,334)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Phillips 66 Company [Member]        
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]        
Net cash provided by (used in) continuing operating activities   2,551us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
4,972us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
7,429us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net Cash Provided by (Used in) Operating Activities   2,551us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
4,972us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
7,429us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]        
Capital expenditures and investments   (2,230)psx_CapitalExpendituresAndInvestments
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
[1] (1,108)psx_CapitalExpendituresAndInvestments
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
[1] (861)psx_CapitalExpendituresAndInvestments
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Proceeds from asset dispositions   960psx_ProceedsFromAssetDispositions
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
63psx_ProceedsFromAssetDispositions
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
240psx_ProceedsFromAssetDispositions
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Intercompany lending activities   (1,402)us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
[2] (4,206)us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(4,334)us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Other   (13)us-gaap_PaymentsForProceedsFromOtherInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
42us-gaap_PaymentsForProceedsFromOtherInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
 
Net cash provided by (used in) continuing investing activities   (2,685)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(5,209)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(4,955)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net Cash Provided by (Used in) Investing Activities   (2,685)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(5,209)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(4,955)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]        
Contributions from (distributions to) ConocoPhillips       110psx_ProceedsFromPaymentsToParentCompanyNet
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Repayment of debt   (20)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(18)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(208)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Other   37us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
[1] 7us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
[1] 34us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net cash provided by (used in) continuing financing activities   17us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(11)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(64)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net Cash Provided by (Used in) Financing Activities   17us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(11)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(64)us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Net Change in Cash and Cash Equivalents   (117)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
(248)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
2,410us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Cash and cash equivalents at beginning of year   2,162us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
2,410us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
 
Cash and Cash Equivalents at End of Year 2,045us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
2,045us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
2,162us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
2,410us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
All Other Subsidiaries [Member]        
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]        
Net cash provided by (used in) continuing operating activities   1,527us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
1,045us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(3,128)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net cash provided by discontinued operations   2us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
85us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
37us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net Cash Provided by (Used in) Operating Activities   1,529us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
1,130us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(3,091)us-gaap_NetCashProvidedByUsedInOperatingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]        
Capital expenditures and investments   (2,532)psx_CapitalExpendituresAndInvestments
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
[1] (690)psx_CapitalExpendituresAndInvestments
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
[1] (850)psx_CapitalExpendituresAndInvestments
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Proceeds from asset dispositions   687psx_ProceedsFromAssetDispositions
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
1,151psx_ProceedsFromAssetDispositions
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
46psx_ProceedsFromAssetDispositions
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Intercompany lending activities   5us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
[2] 151us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
2,958us-gaap_ProceedsFromPaymentsForLongTermLoansForRelatedParties
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Advances/loans—related parties   (3)us-gaap_PaymentsForAdvanceToAffiliate
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(65)us-gaap_PaymentsForAdvanceToAffiliate
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(100)us-gaap_PaymentsForAdvanceToAffiliate
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Collection of advances/loans—related parties     165us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
7us-gaap_ProceedsFromCollectionOfAdvanceToAffiliate
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Other   251us-gaap_PaymentsForProceedsFromOtherInvestingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
6us-gaap_PaymentsForProceedsFromOtherInvestingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
 
Net cash provided by (used in) continuing investing activities   (1,592)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
718us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
2,061us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net cash used in discontinued operations   (2)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(27)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(20)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net Cash Provided by (Used in) Investing Activities   (1,594)us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
691us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
2,041us-gaap_NetCashProvidedByUsedInInvestingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]        
Contributions from (distributions to) ConocoPhillips       2,104psx_ProceedsFromPaymentsToParentCompanyNet
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Proceeds from Issuance of Debt   28us-gaap_ProceedsFromIssuanceOfDebt
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
   
Repayment of debt   (29)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(2)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(9)us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Dividends paid on common stock   (443)us-gaap_PaymentsOfDividendsCommonStock
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(72)us-gaap_PaymentsOfDividendsCommonStock
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
 
Distributions to noncontrolling interests   (30)us-gaap_PaymentsToMinorityShareholders
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(10)us-gaap_PaymentsToMinorityShareholders
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
(5)us-gaap_PaymentsToMinorityShareholders
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net proceeds from issuance of Phillips 66 Partners LP common units     404us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
 
Other   850us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
[1] 19us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
[1] 10us-gaap_ProceedsFromPaymentsForOtherFinancingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net cash provided by (used in) continuing financing activities   53us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
331us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
2,100us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net Cash Provided by (Used in) Financing Activities   53us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
331us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
2,100us-gaap_NetCashProvidedByUsedInFinancingActivities
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Effect of Exchange Rate Changes on Cash and Cash Equivalents   (64)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
22us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
14us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Net Change in Cash and Cash Equivalents   (76)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
2,174us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
1,064us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
Cash and cash equivalents at beginning of year   3,238us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
1,064us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
 
Cash and Cash Equivalents at End of Year 3,162us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
3,162us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
3,238us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
1,064us-gaap_CashAndCashEquivalentsAtCarryingValue
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
All Other Subsidiaries [Member] | Consolidating Adjustments [Member]        
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]        
Distributions to controlling interests   $ (323)us-gaap_PartnersCapitalAccountDistributions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
$ (8)us-gaap_PartnersCapitalAccountDistributions
/ us-gaap_ConsolidationItemsAxis
= us-gaap_ConsolidationEliminationsMember
/ dei_LegalEntityAxis
= psx_AllOtherSubsidiariesMember
 
[1] Includes intercompany capital contributions.
[2] Non-cash investing activity: In the fourth quarter of 2014, Phillips 66 Company declared and distributed $6.1 billion of its Phillips 66 intercompany receivables to Phillips 66.