1.0.0.3 false Consolidated Statements of Cash Flows (USD $) In Millions false 1 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 3 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 6 4 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 7 5 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 8644000000 8644 false false 2 true true 8127000000 8127 false false 3 true true 8186000000 8186 false false No definition available. No authoritative reference available. false 8 5 pfe_AdjustmentsToReconcileNetIncomeLossBeforeAllocationToNoncontrollingInterestsToNetCashProvidedByUsedInOperatingActivitiesAbstract pfe false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 9 6 us-gaap_DepreciationDepletionAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 4757000000 4757 false false 2 false true 5090000000 5090 false false 3 false true 5200000000 5200 false false No definition available. No authoritative reference available. false 10 6 us-gaap_ShareBasedCompensation us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 349000000 349 false false 2 false true 384000000 384 false false 3 false true 437000000 437 false false No definition available. No authoritative reference available. false 11 6 us-gaap_ResearchAndDevelopmentInProcess us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 68000000 68 false false 2 false true 633000000 633 false false 3 false true 283000000 283 false false No definition available. No authoritative reference available. false 12 6 us-gaap_AssetImpairmentCharges us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 false false 3 false true 2220000000 2220 false false No definition available. No authoritative reference available. false 13 6 pfe_GainsOnDisposals pfe false credit duration monetary This item represents the gains on disposals of product lines, property, plant and equipment, investments, intangibles and... false false false false false false false false false 1 false true -670000000 -670 false false 2 false true -14000000 -14 false false 3 false true -326000000 -326 false false This item represents the gains on disposals of product lines, property, plant and equipment, investments, intangibles and other assets, none treated as discontinued operations. No authoritative reference available. false 14 6 us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true -6000000 -6 false false 3 false true 168000000 168 false false No definition available. No authoritative reference available. false 15 6 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -9582000000 -9582 false false 2 false true -1331000000 -1331 false false 3 false true -2788000000 -2788 false false No definition available. No authoritative reference available. false 16 6 us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 504000000 504 false false 2 false true 496000000 496 false false 3 false true 773000000 773 false false No definition available. No authoritative reference available. false 17 6 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 18 7 us-gaap_IncreaseDecreaseInAccountsReceivable us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -472000000 -472 false false 2 false true 195000000 195 false false 3 false true -320000000 -320 false false No definition available. No authoritative reference available. false 19 7 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 1631000000 1631 false false 2 false true 294000000 294 false false 3 false true 720000000 720 false false No definition available. No authoritative reference available. false 20 7 us-gaap_IncreaseDecreaseInOtherOperatingAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -867000000 -867 false false 2 false true -538000000 -538 false false 3 false true -647000000 -647 false false No definition available. No authoritative reference available. false 21 7 us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1695000000 1695 false false 2 false true 3797000000 3797 false false 3 false true 1509000000 1509 false false No definition available. No authoritative reference available. false 22 7 us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 9454000000 9454 false false 2 false true 647000000 647 false false 3 false true -2002000000 -2002 false false No definition available. No authoritative reference available. false 23 7 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1076000000 1076 false false 2 false true 464000000 464 false false 3 false true -60000000 -60 false false No definition available. No authoritative reference available. false 24 5 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 16587000000 16587 false false 2 false true 18238000000 18238 false false 3 false true 13353000000 13353 false false No definition available. No authoritative reference available. true 25 4 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 26 5 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -1205000000 -1205 false false 2 false true -1701000000 -1701 false false 3 false true -1880000000 -1880 false false No definition available. No authoritative reference available. false 27 5 us-gaap_PaymentsToAcquireShortTermInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -35331000000 -35331 false false 2 false true -35705000000 -35705 false false 3 false true -25426000000 -25426 false false No definition available. No authoritative reference available. false 28 5 pfe_ProceedsFromSaleAndMaturityOfShortTermMarketableSecuritiesMoreThanNinetyDays pfe false debit duration monetary The cash inflow associated with the aggregate amount received by the entity through sale or maturity of short term marketable... false false false false false false false false false 1 false true 42364000000 42364 false false 2 false true 27883000000 27883 false false 3 false true 23053000000 23053 false false The cash inflow associated with the aggregate amount received by the entity through sale or maturity of short term marketable securities (trading, held-to-maturity, or available-for-sale) with original maturities of more than 90 days during the period. No authoritative reference available. false 29 5 us-gaap_PaymentsForProceedsFromShortTermInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 5775000000 5775 false false 2 false true 7913000000 7913 false false 3 false true 7235000000 7235 false false No definition available. No authoritative reference available. false 30 5 us-gaap_PaymentsToAcquireMarketableSecurities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -6888000000 -6888 false false 2 false true -9357000000 -9357 false false 3 false true -1635000000 -1635 false false No definition available. No authoritative reference available. false 31 5 pfe_ProceedsFromSaleAndMaturityOfLongTermMarketableSecurities pfe false debit duration monetary The cash inflow associated with the aggregate amount received by the entity through sale or maturity of long-term marketable... false false false false false false false false false 1 false true 6504000000 6504 false false 2 false true 1009000000 1009 false false 3 false true 172000000 172 false false The cash inflow associated with the aggregate amount received by the entity through sale or maturity of long-term marketable securities (trading, held-to-maturity, or available-for-sale) during the period. No authoritative reference available. false 32 5 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -43123000000 -43123 false false 2 false true -1184000000 -1184 false false 3 false true -464000000 -464 false false No definition available. No authoritative reference available. false 33 5 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 632000000 632 false false 2 false true -1693000000 -1693 false false 3 false true -260000000 -260 false false No definition available. No authoritative reference available. false 34 5 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -31272000000 -31272 false false 2 false true -12835000000 -12835 false false 3 false true 795000000 795 false false No definition available. No authoritative reference available. true 35 4 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 36 5 pfe_ProceedsFromIssuancesOfShortTermDebtNetOfProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess pfe false debit duration monetary The cash inflow from a borrowing having initial term of repayment of more than three months but less than one year or one... false false false false false false false false false 1 false true 32033000000 32033 false false 2 false true 40119000000 40119 false false 3 false true 3155000000 3155 false false The cash inflow from a borrowing having initial term of repayment of more than three months but less than one year or one operating cycle (if the normal cycle is more than one year) plus the cash inflow from a borrowing having initial term of repayment within three months net of the cash outflow from repayment of a borrowing having initial term of repayment within three months. No authoritative reference available. false 37 5 pfe_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonthsNetOfRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess pfe false credit duration monetary The cash outflow from a repayment of a borrowing having initial term of repayment of more than three months but less than one... false false false false false false false false false 1 false true -34969000000 -34969 false false 2 false true -37264000000 -37264 false false 3 false true -764000000 -764 false false The cash outflow from a repayment of a borrowing having initial term of repayment of more than three months but less than one year or one operating cycle (if the normal cycle is more than one year) plus the cash outflow from a repayment of a borrowing having initial term of repayment within three months net of the cash inflow of a borrowing having initial term of repayment within three months. No authoritative reference available. false 38 5 us-gaap_ProceedsFromIssuanceOfLongTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 24023000000 24023 false false 2 false true 605000000 605 false false 3 false true 2573000000 2573 false false No definition available. No authoritative reference available. false 39 5 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -967000000 -967 false false 2 false true -1053000000 -1053 false false 3 false true -64000000 -64 false false No definition available. No authoritative reference available. false 40 5 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true -500000000 -500 false false 3 false true -9994000000 -9994 false false No definition available. No authoritative reference available. false 41 5 us-gaap_PaymentsOfOrdinaryDividends us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -5548000000 -5548 false false 2 false true -8541000000 -8541 false false 3 false true -7975000000 -7975 false false No definition available. No authoritative reference available. false 42 5 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -91000000 -91 false false 2 false true 74000000 74 false false 3 false true 459000000 459 false false No definition available. No authoritative reference available. false 43 5 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 14481000000 14481 false false 2 false true -6560000000 -6560 false false 3 false true -12610000000 -12610 false false No definition available. No authoritative reference available. true 44 4 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 60000000 60 false false 2 false true -127000000 -127 false false 3 false true 41000000 41 false false No definition available. No authoritative reference available. false 45 4 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true -144000000 -144 false false 2 false true -1284000000 -1284 false false 3 false true 1579000000 1579 false false No definition available. No authoritative reference available. true 46 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false true false false 1 false true 2122000000 2122 false false 2 false true 3406000000 3406 false false 3 false true 1827000000 1827 false false No definition available. No authoritative reference available. false 47 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false true false 1 false true 1978000000 1978 false false 2 false true 2122000000 2122 false false 3 false true 3406000000 3406 false false No definition available. No authoritative reference available. false 48 3 us-gaap_SupplementalCashFlowInformationAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 49 4 us-gaap_StockIssued us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 23303000000 23303 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 50 4 pfe_CashPaidDuringPeriodForAbstract pfe false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 51 5 us-gaap_IncomeTaxesPaidNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 2300000000 2300 false false 2 false true 2252000000 2252 false false 3 false true 5617000000 5617 false false No definition available. No authoritative reference available. false 52 5 us-gaap_InterestPaid us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 935000000 935 false false 2 true true 782000000 782 false false 3 true true 643000000 643 false false No definition available. No authoritative reference available. false false 3 47 false Millions UnKnown UnKnown false true