$PSX
Phillips 66 Stock $psx

$psx Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000153470121000074 Filed on February 24, 2021

Income Statement

Concept	2020 Q4	2020 Q3	2020 Q2
Revenue	$16.41B	$15.93B	$10.91B
YoY Change	-43.66%	-41.48%	-60.81%
Cost Of Revenue	$15.15B	$14.51B	$9.608B
YoY Change	-42.25%	-39.05%	-60.87%
Gross Profit	$1.259B	$1.420B	$1.305B
YoY Change	-57.35%	-58.38%	-60.37%
Gross Profit Margin	7.67%	8.91%	11.96%
Selling, General & Admin	$519.0M	$384.0M	$409.0M
YoY Change	-8.95%	-7.69%	0.25%
% of Gross Profit	41.22%	27.04%	31.34%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$358.0M	$352.0M	$343.0M
YoY Change	5.29%	4.76%	2.69%
% of Gross Profit	28.44%	24.79%	26.28%
Operating Expenses	$2.062B	$384.0M	$409.0M
YoY Change	-10.81%	-7.69%	0.25%
Operating Profit	-$803.0M	$1.036B	$896.0M
YoY Change	-225.47%	-65.42%	-68.94%
Interest Expense	$179.0M	$213.0M	$40.00M
YoY Change	-56.13%	-50.47%	-93.28%
% of Operating Profit		20.56%	4.46%
Other Income/Expense, Net	$18.00M	$20.00M	$28.00M
YoY Change	-18.18%	-44.44%	21.74%
Pretax Income	-$691.0M	-$1.350B	-$445.0M
YoY Change	-164.82%	-243.16%	-124.33%
Income Tax	-$197.0M	-$624.0M	-$378.0M
% Of Pretax Income
Net Earnings	-$539.0M	-$799.0M	-$141.0M
YoY Change	-173.23%	-212.22%	-109.9%
Net Earnings / Revenue	-3.28%	-5.02%	-1.29%
Basic Earnings Per Share	-$1.23	-$1.82	-$0.33
Diluted Earnings Per Share	-$1.23	-$1.82	-$0.33
COMMON SHARES
Basic Shares Outstanding		438.9M shares	438.8M shares
Diluted Shares Outstanding		438.9M shares	438.8M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.514B	$1.462B	$1.890B
YoY Change	55.76%	-35.54%	3.9%
Cash & Equivalents	$2.514B	$1.462B	$1.890B
Short-Term Investments
Other Short-Term Assets	$347.0M	$500.0M	$621.0M
YoY Change	-29.9%	-32.61%	-5.34%
Inventory	$3.893B	$4.897B	$5.136B
Prepaid Expenses
Receivables	$6.522B	$5.963B	$4.852B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$13.28B	$12.82B	$12.50B
YoY Change	-7.77%	-17.9%	-12.56%
LONG-TERM ASSETS
Property, Plant & Equipment	$23.72B	$23.49B	$24.28B
YoY Change	-5.51%	2.33%	7.91%
Goodwill	$1.425B	$1.425B	$1.425B
YoY Change	-56.42%	-56.42%	-56.42%
Intangibles	$843.0M	$849.0M	$874.0M
YoY Change	-2.99%	-2.64%	0.34%
Long-Term Investments	$13.04B	$13.77B	$13.63B
YoY Change	-8.73%	-2.69%	-9.18%
Other Assets	$1.837B	$1.929B	$1.810B
YoY Change	0.44%	2.55%	-1.42%
Total Long-Term Assets	$41.45B	$41.46B	$42.02B
YoY Change	-6.5%	-3.86%	-3.37%
TOTAL ASSETS
Total Short-Term Assets	$13.28B	$12.82B	$12.50B
Total Long-Term Assets	$41.45B	$41.46B	$42.02B
Total Assets	$54.72B	$54.28B	$54.52B
YoY Change	-6.81%	-7.59%	-5.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.171B	$4.905B	$4.902B
YoY Change	-35.71%	-36.61%	-32.85%
Accrued Expenses	$2.982B	$3.196B	$2.872B
YoY Change	18.76%	12.14%	16.18%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$987.0M	$1.860B	$1.783B
YoY Change	80.44%	120.9%	167.32%
Total Short-Term Liabilities	$9.518B	$10.51B	$10.02B
YoY Change	-18.27%	-12.99%	-10.28%
LONG-TERM LIABILITIES
Long-Term Debt	$14.91B	$12.67B	$12.66B
YoY Change	32.9%	14.28%	17.55%
Other Long-Term Liabilities	$3.130B	$3.290B	$3.066B
YoY Change	-0.19%	10.4%	2.23%
Total Long-Term Liabilities	$18.04B	$15.96B	$15.73B
YoY Change	25.67%	13.46%	14.22%
TOTAL LIABILITIES
Total Short-Term Liabilities	$9.518B	$10.51B	$10.02B
Total Long-Term Liabilities	$18.04B	$15.96B	$15.73B
Total Liabilities	$33.20B	$31.98B	$31.22B
YoY Change	5.22%	1.03%	2.45%
SHAREHOLDERS EQUITY
Retained Earnings	$16.50B	$17.44B	$18.63B
YoY Change	-25.22%	-19.76%	-13.03%
Common Stock	$20.39B	$20.37B	$20.35B
YoY Change	0.4%	0.54%	2.16%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$17.12B	$17.12B	$17.12B
YoY Change	2.66%	5.26%	8.18%
Treasury Stock Shares	211.8M shares	211.8M shares	211.8M shares
Shareholders Equity	$18.98B	$19.72B	$20.72B
YoY Change
Total Liabilities & Shareholders Equity	$54.72B	$54.28B	$54.52B
YoY Change	-6.81%	-7.59%	-5.65%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2020 Q2
OPERATING ACTIVITIES
Net Income	-$539.0M	-$799.0M	-$141.0M
YoY Change	-173.23%	-212.22%	-109.9%
Depreciation, Depletion And Amortization	$358.0M	$352.0M	$343.0M
YoY Change	5.29%	4.76%	2.69%
Cash From Operating Activities	$639.0M	$491.0M	$764.0M
YoY Change	-62.28%	-70.46%	-60.41%
INVESTING ACTIVITIES
Capital Expenditures	-$506.0M	-$552.0M	-$939.0M
YoY Change	-60.41%	-36.33%	48.81%
Acquisitions
YoY Change
Other Investing Activities	-$7.000M	$10.00M	-$208.0M
YoY Change	-131.82%	-52.38%	-464.91%
Cash From Investing Activities	-$513.0M	-$542.0M	-$1.147B
YoY Change	-59.16%	-35.93%	99.83%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	872.0M	-404.0M	1.047B
YoY Change	-178.63%	22.05%	-233.04%
NET CHANGE
Cash From Operating Activities	639.0M	491.0M	764.0M
Cash From Investing Activities	-513.0M	-542.0M	-1.147B
Cash From Financing Activities	872.0M	-404.0M	1.047B
Net Change In Cash	998.0M	-455.0M	664.0M
YoY Change	-248.73%	-193.81%	16.7%
FREE CASH FLOW
Cash From Operating Activities	$639.0M	$491.0M	$764.0M
Capital Expenditures	-$506.0M	-$552.0M	-$939.0M
Free Cash Flow	$1.145B	$1.043B	$1.703B
YoY Change	-61.47%	-58.76%	-33.5%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001534701
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
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CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:DebtCurrent
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesCurrent
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesCurrent
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:LongTermDebtAndCapitalLeaseObligations
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:LongTermDebtAndCapitalLeaseObligations
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
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CY2020Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OtherAssetsNoncurrent
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent
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CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage	0.3333
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1681000000	USD
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-35349
CY2020	dei	Entity Registrant Name EntityRegistrantName	Phillips 66
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	45-3779385
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	2331 CityWest Blvd
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77042
CY2020	dei	City Area Code CityAreaCode	281
CY2020	dei	Local Phone Number LocalPhoneNumber	293-6600
CY2020	dei	Security12b Title Security12bTitle	Common Stock, $0.01 Par Value
CY2020	dei	Trading Symbol TradingSymbol	PSX
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	31300000000	USD
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CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	5000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-1000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-3000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	151000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	95000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-202000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-5000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-15000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-1000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-4000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-4000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-11000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-6000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-75000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-3720000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3370000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	5798000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	261000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	301000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	278000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-3981000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3069000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5520000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2514000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1614000000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	37000000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	41000000	USD
CY2020Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	5688000000	USD
CY2019Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	7376000000	USD
CY2020Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	834000000	USD
CY2019Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	1134000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	3893000000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	3776000000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	347000000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	495000000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	13276000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	14395000000	USD
CY2020Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	13624000000	USD
CY2019Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	14571000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	23716000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	23786000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	1425000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	3270000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	843000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	869000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1837000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1829000000	USD
CY2020Q4	us-gaap	Assets Assets	54721000000	USD
CY2019Q4	us-gaap	Assets Assets	58720000000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	5171000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	8043000000	USD
CY2020Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	378000000	USD
CY2019Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	532000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	987000000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	547000000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1351000000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	979000000	USD
CY2020Q4	psx	Employee Benefit Obligations Current EmployeeBenefitObligationsCurrent	573000000	USD
CY2019Q4	psx	Employee Benefit Obligations Current EmployeeBenefitObligationsCurrent	710000000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1058000000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	835000000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	9518000000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	11646000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	14906000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	11216000000	USD
CY2020Q4	psx	Asset Retirement Obligations And Accrued Environmental Cost AssetRetirementObligationsAndAccruedEnvironmentalCost	657000000	USD
CY2019Q4	psx	Asset Retirement Obligations And Accrued Environmental Cost AssetRetirementObligationsAndAccruedEnvironmentalCost	638000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5644000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5553000000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1341000000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1044000000	USD
CY2020Q4	us-gaap	Deferred Credits And Other Liabilities Noncurrent DeferredCreditsAndOtherLiabilitiesNoncurrent	1132000000	USD
CY2019Q4	us-gaap	Deferred Credits And Other Liabilities Noncurrent DeferredCreditsAndOtherLiabilitiesNoncurrent	1454000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	33198000000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	31551000000	USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2500000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2500000000	shares
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	648643223	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	647416633	shares
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	6000000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	6000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	20383000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	20301000000	USD
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	211771827	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	206390806	shares
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	17116000000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	16673000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	16500000000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	22064000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-789000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-788000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	18984000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	24910000000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	2539000000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	2259000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	21523000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	27169000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	54721000000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	58720000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-3714000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	3377000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	5873000000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1395000000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1341000000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1356000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	4252000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	861000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	8000000	USD
CY2020	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	22000000	USD
CY2019	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	23000000	USD
CY2018	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	23000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	126000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	183000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	252000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-334000000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	143000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-221000000	USD
CY2020	psx	Gain Loss On Disposition GainLossOnDisposition	108000000	USD
CY2019	psx	Gain Loss On Disposition GainLossOnDisposition	20000000	USD
CY2018	psx	Gain Loss On Disposition GainLossOnDisposition	19000000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-130000000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-16000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-132000000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-2023000000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	2308000000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-1320000000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	71000000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	204000000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-92000000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	202000000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	14000000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	113000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2887000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1941000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1546000000	USD
CY2020	psx	Increase Decrease In Taxes And Other Accruals IncreaseDecreaseInTaxesAndOtherAccruals	517000000	USD
CY2019	psx	Increase Decrease In Taxes And Other Accruals IncreaseDecreaseInTaxesAndOtherAccruals	-245000000	USD
CY2018	psx	Increase Decrease In Taxes And Other Accruals IncreaseDecreaseInTaxesAndOtherAccruals	268000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2111000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4808000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7573000000	USD
CY2020	psx	Capital Expenditures And Investments CapitalExpendituresAndInvestments	2920000000	USD
CY2019	psx	Capital Expenditures And Investments CapitalExpendituresAndInvestments	3873000000	USD
CY2018	psx	Capital Expenditures And Investments CapitalExpendituresAndInvestments	2639000000	USD
CY2020	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	192000000	USD
CY2019	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	71000000	USD
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	45000000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	51000000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	86000000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	12000000	USD
CY2020	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	316000000	USD
CY2019	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	98000000	USD
CY2018	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	1000000	USD
CY2020	us-gaap	Proceeds From Collection Of Longterm Loans To Related Parties ProceedsFromCollectionOfLongtermLoansToRelatedParties	44000000	USD
CY2019	us-gaap	Proceeds From Collection Of Longterm Loans To Related Parties ProceedsFromCollectionOfLongtermLoansToRelatedParties	95000000	USD
CY2018	us-gaap	Proceeds From Collection Of Longterm Loans To Related Parties ProceedsFromCollectionOfLongtermLoansToRelatedParties	0	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	130000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-31000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-112000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3079000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3688000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2471000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	5178000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1783000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	2184000000	USD
CY2020	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	1051000000	USD
CY2019	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	1307000000	USD
CY2018	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	1144000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	8000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	32000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	39000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	443000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1650000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4645000000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1575000000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1570000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1436000000	USD
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	289000000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	241000000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	207000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	2000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	173000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	128000000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-39000000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	269000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-86000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1791000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2511000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5167000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	77000000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-14000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-35000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	900000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1405000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-100000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1614000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3019000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3119000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2514000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1614000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3019000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	27428000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	5873000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-75000000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1436000000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	4645000000	USD
CY2018	psx	Total Adjustments To Equity From Share Based Compensation TotalAdjustmentsToEquityFromShareBasedCompensation	51000000	USD
CY2018	us-gaap	Partners Capital Account Sale Of Units PartnersCapitalAccountSaleOfUnits	115000000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	207000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	27153000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	3377000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7000000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1570000000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1650000000	USD
CY2019	psx	Total Adjustments To Equity From Share Based Compensation TotalAdjustmentsToEquityFromShareBasedCompensation	73000000	USD
CY2019	us-gaap	Partners Capital Account Sale Of Units PartnersCapitalAccountSaleOfUnits	141000000	USD
CY2019	psx	Partners Capital Account Incentive Distribution Rights Restructuring Transaction PartnersCapitalAccountIncentiveDistributionRightsRestructuringTransaction	-98000000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	241000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	27169000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-3714000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-6000000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1575000000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	443000000	USD
CY2020	psx	Total Adjustments To Equity From Share Based Compensation TotalAdjustmentsToEquityFromShareBasedCompensation	68000000	USD
CY2020	psx	Non Controlling Interest Increase From Transfer Of Equity Interest NonControllingInterestIncreaseFromTransferOfEquityInterest	307000000	USD
CY2020	psx	Noncontrolling Interest Decrease From Distributions To Noncontrolling Interest Holders Net Of Contributions From Noncontrolling Interest Holders NoncontrollingInterestDecreaseFromDistributionsToNoncontrollingInterestHoldersNetOfContributionsFromNoncontrollingInterestHolders	285000000	USD
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	-2000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	21523000000	USD
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	643835464	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	141565145	shares
CY2018	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	47961186	shares
CY2018	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1856297	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	645691761	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	189526331	shares
CY2019	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	16864475	shares
CY2019	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1724872	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	647416633	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	206390806	shares
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	5381021	shares
CY2020	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1226590	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	648643223	shares
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	211771827	shares
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.10
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.50
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.60
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with generally accepted accounting principles in the United States (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities. Actual results could differ from these estimates.</span></div>
CY2020	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:700;line-height:120%">Impairment of Properties, Plants and Equipment</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">PP&E used in operations are assessed for impairment whenever changes in facts and circumstances indicate a possible significant deterioration in the future cash flows expected to be generated by an asset group. If indicators of potential impairment exist, an undiscounted cash flow test is performed. If the sum of the undiscounted expected future before-tax cash flows of an asset group is less than the carrying value of the asset group, including applicable liabilities, the carrying value of the PP&E included in the asset group is written down to estimated fair value and the write down is reported in the “Impairments” line item on our consolidated statement of operations in the period in which the impairment determination is made. Individual assets are grouped for impairment purposes at the lowest level for which identifiable cash flows are available. Because there is usually a lack of quoted market prices for long-lived assets, the fair value of impaired assets is typically determined using one or more of the following methods: the present values of expected future cash flows using discount rates and other assumptions believed to be consistent with those used by principal market participants; a market multiple of earnings for similar assets; historical market transactions including similar assets, adjusted using principal market participant assumptions when necessary; or replacement cost adjusted for physical deterioration and economic obsolescence. Long-lived assets held for sale are accounted for at the lower of amortized cost or fair value, less cost to sell, with fair value determined using a binding negotiated price, if available, estimated replacement cost, or present value of expected future cash flows as previously described.</span></div><div style="padding-left:36pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">The expected future cash flows used for impairment reviews and related fair value calculations are based on estimated future volumes, prices, costs, margins and capital project decisions, considering all available evidence at the date of review.</span></div>
CY2020	us-gaap	Number Of Reporting Units NumberOfReportingUnits	2	reporting_unit
CY2020	psx	Contract With Customer Payment Term ContractWithCustomerPaymentTerm	P30D
CY2020	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	Changes in Accounting Principles<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">Effective January 1, 2019, we elected to adopt ASU No. 2018-02, “Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” This ASU permits the deferred income tax effects stranded in accumulated other comprehensive income (AOCI) resulting from the U.S. Tax Cuts and Jobs Act (the Tax Act) enacted in December 2017 to be reclassified to retained earnings. As of January 1, 2019, we recorded a cumulative effect adjustment to our opening consolidated balance sheet to reclassify an aggregate income tax benefit of $89 million, primarily related to our pension plans, from accumulated other comprehensive loss to retained earnings.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">Effective January 1, 2019, we early adopted ASU 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” using the modified retrospective transition method. This ASU amends the impairment model to utilize an expected loss methodology in place of the incurred loss methodology for financial instruments, including trade receivables, and off-balance sheet credit exposures. The amendment requires entities to consider a broader range of information to estimate expected credit losses, which may result in earlier recognition of losses. We recorded a noncash cumulative effect adjustment to retained earnings of $9 million, net of $3 million of income taxes, on our opening consolidated balance sheet as of January 1, 2019. See Note 4—Credit Losses, for more information on our presentation of credit losses.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">Effective January 1, 2019, we adopted ASU No. 2016-02, “Leases (Topic 842),” using the modified retrospective transition method. The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the consolidated balance sheet for all leases with terms longer than 12 months. Leases will continue to be classified as either finance or operating, with classification affecting the pattern of expense recognition in the consolidated statement of operations.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10.5pt;font-weight:400;line-height:120%">We elected the package of practical expedients that allowed us to carry forward our determination of whether an arrangement contained a lease and lease classification, as well as our accounting for initial direct costs for existing contracts. We recorded a noncash cumulative effect adjustment, reflecting an aggregate operating lease ROU asset and corresponding lease liability of $1,415 million and immaterial adjustments to retained earnings and noncontrolling interests, on our opening consolidated balance sheet as of January 1, 2019. See Note 18—Leases, for the new lease disclosures required by this ASU.</span></div>
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	64129000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	107293000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	111461000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	64129000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	107293000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	111461000000	USD
CY2020Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	3911000000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	6902000000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	404000000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	336000000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	6522000000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	8510000000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	37000000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	41000000	USD
CY2020Q4	psx	Accounts And Notes Receivable Percent Outstanding Less Than60 Days AccountsAndNotesReceivablePercentOutstandingLessThan60Days	0.99
CY2020Q4	us-gaap	Inventory Crude Oil Products And Merchandise InventoryCrudeOilProductsAndMerchandise	3536000000	USD
CY2019Q4	us-gaap	Inventory Crude Oil Products And Merchandise InventoryCrudeOilProductsAndMerchandise	3452000000	USD
CY2020Q4	us-gaap	Other Inventory Net Of Reserves OtherInventoryNetOfReserves	357000000	USD
CY2019Q4	us-gaap	Other Inventory Net Of Reserves OtherInventoryNetOfReserves	324000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	3893000000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	3776000000	USD
CY2020Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	3368000000	USD
CY2019Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	3331000000	USD
CY2020Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	2700000000	USD
CY2019Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	4300000000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	13037000000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	14284000000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	145000000	USD
CY2019Q4	us-gaap	Other Investments OtherInvestments	130000000	USD
CY2020Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	442000000	USD
CY2019Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	157000000	USD
CY2020Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	13624000000	USD
CY2019Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	14571000000	USD
CY2020	psx	Proceeds From Equity Method Investment Distribution And Return Of Capital ProceedsFromEquityMethodInvestmentDistributionAndReturnOfCapital	1717000000	USD
CY2019	psx	Proceeds From Equity Method Investment Distribution And Return Of Capital ProceedsFromEquityMethodInvestmentDistributionAndReturnOfCapital	2055000000	USD
CY2018	psx	Proceeds From Equity Method Investment Distribution And Return Of Capital ProceedsFromEquityMethodInvestmentDistributionAndReturnOfCapital	2942000000	USD
CY2020Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	2400000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	40223000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	16507000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	23716000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	38071000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	14285000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	23786000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	3270000000	USD
CY2019	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	3270000000	USD
CY2020Q1	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1845000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	1425000000	USD
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	725000000	USD
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	752000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	118000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	117000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	27000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14000000	USD
CY2020Q4	psx	Finite Lived Intangible Assets Estimated Future Amortization Expense FiniteLivedIntangibleAssetsEstimatedFutureAmortizationExpense	20000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	4252000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	861000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	8000000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	309000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	280000000	USD
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	427000000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	441000000	USD
CY2020Q4	psx	Asset Retirement Obligation And Accrual For Environmental Loss Contingencies AssetRetirementObligationAndAccrualForEnvironmentalLossContingencies	736000000	USD
CY2019Q4	psx	Asset Retirement Obligation And Accrual For Environmental Loss Contingencies AssetRetirementObligationAndAccrualForEnvironmentalLossContingencies	721000000	USD
CY2020Q4	psx	Asset Retirement Obligation And Accrual For Environmental Loss Contingencies Current AssetRetirementObligationAndAccrualForEnvironmentalLossContingenciesCurrent	79000000	USD
CY2019Q4	psx	Asset Retirement Obligation And Accrual For Environmental Loss Contingencies Current AssetRetirementObligationAndAccrualForEnvironmentalLossContingenciesCurrent	83000000	USD
CY2020Q4	psx	Asset Retirement Obligation And Accrual For Environmental Loss Contingencies Noncurrent AssetRetirementObligationAndAccrualForEnvironmentalLossContingenciesNoncurrent	657000000	USD
CY2019Q4	psx	Asset Retirement Obligation And Accrual For Environmental Loss Contingencies Noncurrent AssetRetirementObligationAndAccrualForEnvironmentalLossContingenciesNoncurrent	638000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	280000000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	261000000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	15000000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	10000000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	10000000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	14000000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	31000000	USD
CY2020	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	11000000	USD
CY2019	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	22000000	USD
CY2020	us-gaap	Asset Retirement Obligation Foreign Currency Translation Gain Loss AssetRetirementObligationForeignCurrencyTranslationGainLoss	-1000000	USD
CY2019	us-gaap	Asset Retirement Obligation Foreign Currency Translation Gain Loss AssetRetirementObligationForeignCurrencyTranslationGainLoss	0	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	309000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	280000000	USD
CY2020	us-gaap	Accrual For Environmental Loss Contingencies Period Increase Decrease AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease	-14000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-3975000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-3975000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	3076000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	3076000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	5595000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	5595000000	USD
CY2020	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	8000000	USD
CY2020	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	8000000	USD
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	6000000	USD
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	2000000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Contingently Issuable WeightedAverageNumberOfSharesContingentlyIssuable	2577000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2524000	shares
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	6000000	USD
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3983000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-3983000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	3070000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	3074000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5589000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	5595000000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	437327000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	439530000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	448787000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	451364000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	467483000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	470708000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Contingently Issuable WeightedAverageNumberOfSharesContingentlyIssuable	2203000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2018	us-gaap	Weighted Average Number Of Shares Contingently Issuable WeightedAverageNumberOfSharesContingentlyIssuable	3225000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3339000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	439530000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	439530000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	451364000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	453888000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	470708000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	474047000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-9.06
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-9.06
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.80
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.77
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.87
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.80
CY2020Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	15716000000	USD
CY2019Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	11576000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	264000000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	277000000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	106000000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	100000000	USD
CY2020Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	15893000000	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	11763000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	987000000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	547000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	14906000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	11216000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	987000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2017000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1015000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1560000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1176000000	USD
CY2020Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	324000000	USD
CY2020Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	324000000	USD
CY2020Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	324000000	USD
CY2020Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	324000000	USD
CY2020Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	324000000	USD
CY2020Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	1676000000	USD
CY2020	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	320000000	USD
CY2019	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	321000000	USD
CY2018	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	323000000	USD
CY2019Q4	psx	Estimated Percentage Of Derivative Contract Volume Expiring Within Twelve Months EstimatedPercentageOfDerivativeContractVolumeExpiringWithinTwelveMonths	0.98
CY2020Q4	psx	Estimated Percentage Of Derivative Contract Volume Expiring Within Twelve Months EstimatedPercentageOfDerivativeContractVolumeExpiringWithinTwelveMonths	0.98
CY2020	psx	Payment Term Of Receivables PaymentTermOfReceivables	30 days or less
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	826000000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	669000000	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2020Q4	psx	Derivative Asset Difference In Carrying Value And Fair Value DerivativeAssetDifferenceInCarryingValueAndFairValue	0	USD
CY2020Q4	psx	Asset Fair Value Amount Offset Against Collateral AssetFairValueAmountOffsetAgainstCollateral	157000000	USD
CY2020Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	18265000000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	669000000	USD
CY2020Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	46000000	USD
CY2020Q4	psx	Financial And Nonfinancial Liability Difference In Carrying Value And Fair Value FinancialAndNonfinancialLiabilityDifferenceInCarryingValueAndFairValue	-1927000000	USD
CY2020Q4	psx	Financial And Nonfinancial Liability Fair Value Amount Offset Against Collateral FinancialAndNonfinancialLiabilityFairValueAmountOffsetAgainstCollateral	15623000000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1342000000	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	1188000000	USD
CY2019Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	0	USD
CY2019Q4	psx	Derivative Asset Difference In Carrying Value And Fair Value DerivativeAssetDifferenceInCarryingValueAndFairValue	0	USD
CY2019Q4	psx	Asset Fair Value Amount Offset Against Collateral AssetFairValueAmountOffsetAgainstCollateral	154000000	USD
CY2019Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	14195000000	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	1188000000	USD
CY2019Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	80000000	USD
CY2019Q4	psx	Financial And Nonfinancial Liability Difference In Carrying Value And Fair Value FinancialAndNonfinancialLiabilityDifferenceInCarryingValueAndFairValue	-1438000000	USD
CY2019Q4	psx	Financial And Nonfinancial Liability Fair Value Amount Offset Against Collateral FinancialAndNonfinancialLiabilityFairValueAmountOffsetAgainstCollateral	11489000000	USD
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000000	shares
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
	psx	Stock Repurchase Program Cumulative Authorized Amount StockRepurchaseProgramCumulativeAuthorizedAmount	15000000000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	159349212	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	12500000000	USD
CY2018Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	35000000	shares
CY2018Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3280000000	USD
CY2018Q1	us-gaap	Accelerated Share Repurchases Initial Price Paid Per Share AcceleratedShareRepurchasesInitialPricePaidPerShare	93.725
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	264000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	284000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1211000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1312000000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	264000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1211000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	284000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1312000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	16000000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	18000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	369000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	455000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	248000000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	259000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	853000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	806000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	264000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1222000000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	277000000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1261000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	25000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	406000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	23000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	273000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	23000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	182000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	23000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	138000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	23000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	102000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	224000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	271000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	341000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1372000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	77000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	150000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	264000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1222000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	21000000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	20000000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	10000000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	6000000	USD
CY2020	psx	Finance Lease Cost FinanceLeaseCost	31000000	USD
CY2019	psx	Finance Lease Cost FinanceLeaseCost	26000000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	527000000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	531000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	108000000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	118000000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	39000000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	12000000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	22000000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	16000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	683000000	USD
CY2019	us-gaap	Lease Cost LeaseCost	671000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	603000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	669000000	USD
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.036
CY2018	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	5000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	71000000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	10000000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	6000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	521000000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	553000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	17000000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	21000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	363000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	342000000	USD
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y1M6D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P11Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y8M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y7M6D
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.031
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.036
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.038
CY2020Q4	psx	Defined Benefit Plan Amortization Percentage DefinedBenefitPlanAmortizationPercentage	0.10
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.75
CY2020	psx	Defined Contribution Plan Employer Discretionary Contribution Target Percent Of Employees Gross Pay DefinedContributionPlanEmployerDiscretionaryContributionTargetPercentOfEmployeesGrossPay	0.02
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	145000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	192000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	178000000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	127000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	169000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	100000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	78.49
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	35000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	53000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	45000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4779404	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	72.55
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1015000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	89.57
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	15.80
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	37958	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	91.90
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	322458	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.76
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	21000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	3811788	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	72.62
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	24000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	3695000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	72.20
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	24000000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	17.58
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.69
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	51000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	37000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5433988	shares
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-58000000	USD
CY2020Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1500000000	USD
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	-42000000	USD
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	36000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1324000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	354000000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	739000000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	171000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	177000000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	257000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	204000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	326000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	67000000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-50000000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	53000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-61000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	61000000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	255000000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-112000000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	55000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1250000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	801000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1572000000	USD
CY2020Q4	psx	Deferred Tax Liabilities Property Plant And Equipment And Intangible Assets DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets	3487000000	USD
CY2019Q4	psx	Deferred Tax Liabilities Property Plant And Equipment And Intangible Assets DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibleAssets	3297000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	1859000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	2137000000	USD
CY2020Q4	psx	Deferred Tax Liabilities Investment In Subsidiaries DeferredTaxLiabilitiesInvestmentInSubsidiaries	940000000	USD
CY2019Q4	psx	Deferred Tax Liabilities Investment In Subsidiaries DeferredTaxLiabilitiesInvestmentInSubsidiaries	794000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	77000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	310000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	263000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	6673000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	6491000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	499000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	460000000	USD
CY2020Q4	psx	Deferred Tax Assets Operating Loss Capital Loss And Foreign Tax Credit Carryforwards DeferredTaxAssetsOperatingLossCapitalLossAndForeignTaxCreditCarryforwards	148000000	USD
CY2019Q4	psx	Deferred Tax Assets Operating Loss Capital Loss And Foreign Tax Credit Carryforwards DeferredTaxAssetsOperatingLossCapitalLossAndForeignTaxCreditCarryforwards	54000000	USD
CY2020Q4	psx	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations And Environmental Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligationsAndEnvironmentalLiabilities	114000000	USD
CY2019Q4	psx	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations And Environmental Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligationsAndEnvironmentalLiabilities	115000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	73000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	38000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	28000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	289000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	313000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1123000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1008000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	40000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1083000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	986000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5590000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5505000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	51000000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	18000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	34000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	44000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	29000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	28000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	14000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	10000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	56000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	37000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	15000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	5000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	10000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	5000000	USD
CY2019	psx	Increase Decrease In Net Income Loss Related To Income Tax Penalties And Interest Accrued IncreaseDecreaseInNetIncomeLossRelatedToIncomeTaxPenaltiesAndInterestAccrued	-3000000	USD
CY2020	psx	Increase Decrease In Net Income Loss Related To Income Tax Penalties And Interest Accrued IncreaseDecreaseInNetIncomeLossRelatedToIncomeTaxPenaltiesAndInterestAccrued	-3000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-5292000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3267000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	5716000000	USD
CY2020	psx	Income Loss From Continuing Operations Before Income Taxes Domestic Percentage Of Total Income Loss From Continuing Operations Before Income Taxes1 IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomesticPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes1	1.066
CY2019	psx	Income Loss From Continuing Operations Before Income Taxes Domestic Percentage Of Total Income Loss From Continuing Operations Before Income Taxes1 IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomesticPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes1	0.782
CY2018	psx	Income Loss From Continuing Operations Before Income Taxes Domestic Percentage Of Total Income Loss From Continuing Operations Before Income Taxes1 IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomesticPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes1	0.768
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	328000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	911000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1729000000	USD
CY2020	psx	Income Loss From Continuing Operations Before Income Taxes Foreign Percentage Of Total Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeignPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes	-0.066
CY2019	psx	Income Loss From Continuing Operations Before Income Taxes Foreign Percentage Of Total Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeignPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes	0.218
CY2018	psx	Income Loss From Continuing Operations Before Income Taxes Foreign Percentage Of Total Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeignPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes	0.232
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-4964000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4178000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7445000000	USD
CY2020	psx	Income Loss From Continuing Operations Before Income Taxes Percentage Of Total Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxesPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes	1.000
CY2019	psx	Income Loss From Continuing Operations Before Income Taxes Percentage Of Total Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxesPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes	1.000
CY2018	psx	Income Loss From Continuing Operations Before Income Taxes Percentage Of Total Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxesPercentageOfTotalIncomeLossFromContinuingOperationsBeforeIncomeTaxes	1.000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-1043000000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	877000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1563000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-139000000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	92000000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	155000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.022
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.021
CY2020	psx	Effective Income Tax Rate Reconciliation Operating Loss Carryback Amount EffectiveIncomeTaxRateReconciliationOperatingLossCarrybackAmount	-398000000	USD
CY2019	psx	Effective Income Tax Rate Reconciliation Operating Loss Carryback Amount EffectiveIncomeTaxRateReconciliationOperatingLossCarrybackAmount	0	USD
CY2018	psx	Effective Income Tax Rate Reconciliation Operating Loss Carryback Amount EffectiveIncomeTaxRateReconciliationOperatingLossCarrybackAmount	0	USD
CY2020	psx	Effective Income Tax Rate Reconciliation Operating Loss Carryback Percent EffectiveIncomeTaxRateReconciliationOperatingLossCarrybackPercent	0.080
CY2019	psx	Effective Income Tax Rate Reconciliation Operating Loss Carryback Percent EffectiveIncomeTaxRateReconciliationOperatingLossCarrybackPercent	0
CY2018	psx	Effective Income Tax Rate Reconciliation Operating Loss Carryback Percent EffectiveIncomeTaxRateReconciliationOperatingLossCarrybackPercent	0
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	387000000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.078
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2020	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	54000000	USD
CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	61000000	USD
CY2018	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	58000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.011
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.015
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.008
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-11000000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-31000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	801000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-3000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.002
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.007
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-42000000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	36000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.010
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.005
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	8000000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-34000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-121000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.017
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1250000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1572000000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.252
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.192
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.211
CY2020	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	-1000000	USD
CY2019	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	123000000	USD
CY2018	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	13000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-75000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7000000	USD
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	-89000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-6000000	USD
CY2020	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	5000000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	119000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	478000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	426000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	465000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	103000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	955000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	984000000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	550000000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	504000000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	493000000	USD
CY2020	psx	Interest And Debt Costs Incurred Other InterestAndDebtCostsIncurredOther	24000000	USD
CY2019	psx	Interest And Debt Costs Incurred Other InterestAndDebtCostsIncurredOther	31000000	USD
CY2018	psx	Interest And Debt Costs Incurred Other InterestAndDebtCostsIncurredOther	28000000	USD
CY2020	psx	Interest And Debt Costs Incurred InterestAndDebtCostsIncurred	574000000	USD
CY2019	psx	Interest And Debt Costs Incurred InterestAndDebtCostsIncurred	535000000	USD
CY2018	psx	Interest And Debt Costs Incurred InterestAndDebtCostsIncurred	521000000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	75000000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	77000000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	17000000	USD
CY2020	us-gaap	Interest And Debt Expense InterestAndDebtExpense	499000000	USD
CY2019	us-gaap	Interest And Debt Expense InterestAndDebtExpense	458000000	USD
CY2018	us-gaap	Interest And Debt Expense InterestAndDebtExpense	504000000	USD
CY2020	us-gaap	Interest Income Other InterestIncomeOther	14000000	USD
CY2019	us-gaap	Interest Income Other InterestIncomeOther	43000000	USD
CY2018	us-gaap	Interest Income Other InterestIncomeOther	45000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	52000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	76000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	16000000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	66000000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	61000000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	48000000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	54000000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	55000000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	51000000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	63000000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	68000000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-12000000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5000000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	31000000	USD
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1932000000	USD
CY2019	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	2977000000	USD
CY2018	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	3514000000	USD
CY2020	psx	Related Party Transaction Purchases From Transactions With Related Party RelatedPartyTransactionPurchasesFromTransactionsWithRelatedParty	6536000000	USD
CY2019	psx	Related Party Transaction Purchases From Transactions With Related Party RelatedPartyTransactionPurchasesFromTransactionsWithRelatedParty	11726000000	USD
CY2018	psx	Related Party Transaction Purchases From Transactions With Related Party RelatedPartyTransactionPurchasesFromTransactionsWithRelatedParty	12755000000	USD
CY2020	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	247000000	USD
CY2019	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	96000000	USD
CY2018	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	59000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	64129000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	107293000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	111461000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1191000000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2127000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2676000000	USD
CY2020	psx	Segment Reporting Information Depreciation Amortization And Impairments SegmentReportingInformationDepreciationAmortizationAndImpairments	5647000000	USD
CY2019	psx	Segment Reporting Information Depreciation Amortization And Impairments SegmentReportingInformationDepreciationAmortizationAndImpairments	2202000000	USD
CY2018	psx	Segment Reporting Information Depreciation Amortization And Impairments SegmentReportingInformationDepreciationAmortizationAndImpairments	1364000000	USD
CY2020	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	-4964000000	USD
CY2019	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	4178000000	USD
CY2018	us-gaap	Income Loss Including Portion Attributable To Noncontrolling Interest IncomeLossIncludingPortionAttributableToNoncontrollingInterest	7445000000	USD
CY2020Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	13327000000	USD
CY2019Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	14300000000	USD
CY2018Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	14231000000	USD
CY2020Q4	us-gaap	Assets Assets	54721000000	USD
CY2019Q4	us-gaap	Assets Assets	58720000000	USD
CY2018Q4	us-gaap	Assets Assets	54302000000	USD
CY2020	psx	Capital Expenditures And Investments CapitalExpendituresAndInvestments	2920000000	USD
CY2019	psx	Capital Expenditures And Investments CapitalExpendituresAndInvestments	3873000000	USD
CY2018	psx	Capital Expenditures And Investments CapitalExpendituresAndInvestments	2639000000	USD
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	37340000000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	38357000000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	36439000000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	340000000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	20878000000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2478000000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	-2427000000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-2496000000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.66
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.66
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10913000000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-445000000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	-67000000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-141000000	USD
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.33
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.33
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	15929000000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1350000000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	-726000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-799000000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.82
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.82
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	16409000000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-691000000	USD
CY2020Q4	us-gaap	Profit Loss ProfitLoss	-494000000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-539000000	USD
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.23
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.23
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	23103000000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	204000000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	270000000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	27847000000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1829000000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	1504000000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	1424000000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.13
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.12
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	27218000000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	943000000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	793000000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	712000000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.58
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.58
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	29125000000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1066000000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	810000000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	736000000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.64

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$PSX
Phillips 66 Stock $psx

2020 Q4 Form 10-K Financial Statement

#000153470121000074 Filed on February 24, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PSX Phillips 66 Stock $psx

2020 Q4 Form 10-K Financial Statement

#000153470121000074 Filed on February 24, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PSX
Phillips 66 Stock $psx