1.0.0.3 false Statement Of Cash Flows Indirect (USD $) In Millions false 1 $ false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 iso4217_USD_per_shares Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 shares Standard http://www.xbrl.org/2003/instance shares 0 false 2 $ false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 iso4217_USD_per_shares Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 shares Standard http://www.xbrl.org/2003/instance shares 0 false 3 $ false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 iso4217_USD_per_shares Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 shares Standard http://www.xbrl.org/2003/instance shares 0 5 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false true false false 1 true true 2769000000 2769 false false 2 true true 2539000000 2539 false false 3 true true 1022000000 1022 false false No definition available. No authoritative reference available. false 6 3 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 4 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 902000000 902 false false 2 false true 645000000 645 false false 3 false true 476000000 476 false false No definition available. No authoritative reference available. false 8 4 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract 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 9 5 us-gaap_DepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 378000000 378 false false 2 false true 287000000 287 false false 3 false true 246000000 246 false false No definition available. No authoritative reference available. false 10 5 us-gaap_ShareBasedCompensation us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 341000000 341 false false 2 false true 275000000 275 false false 3 false true 185000000 185 false false No definition available. No authoritative reference available. false 11 5 us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 103000000 103 false false 2 false true -24000000 -24 false false 3 false true 9000000 9 false false No definition available. No authoritative reference available. false 12 5 us-gaap_GainLossOnSaleOfInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -4000000 -4 false false 2 false true -2000000 -2 false false 3 false true 1000000 1 false false No definition available. No authoritative reference available. false 13 5 amzn_OtherNoncashIncomeExpense amzn false credit duration monetary Gains and other income producing transactions that result in no cash inflows or outflows in the period in which they occur,... false false false false false false false false false 1 false true -15000000 -15 false false 2 false true -34000000 -34 false false 3 false true 12000000 12 false false Gains and other income producing transactions that result in no cash inflows or outflows in the period in which they occur, but increase net income and thus are subtracted (removed) when calculating net cash flow from operating activities using the indirect method. Also other expenses included in net income that result in no cash inflows or outflows in the period. This element is used when there is not a more specific and appropriate element. No authoritative reference available. false 14 5 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 81000000 81 false false 2 false true -5000000 -5 false false 3 false true -99000000 -99 false false No definition available. No authoritative reference available. false 15 5 us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -105000000 -105 false false 2 false true -159000000 -159 false false 3 false true -257000000 -257 false false No definition available. No authoritative reference available. false 16 4 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 17 5 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -531000000 -531 false false 2 false true -232000000 -232 false false 3 false true -303000000 -303 false false No definition available. No authoritative reference available. false 18 5 us-gaap_IncreaseDecreaseInAccountsReceivable us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -481000000 -481 false false 2 false true -218000000 -218 false false 3 false true -255000000 -255 false false No definition available. No authoritative reference available. false 19 5 us-gaap_IncreaseDecreaseInAccountsPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1859000000 1859 false false 2 false true 812000000 812 false false 3 false true 928000000 928 false false No definition available. No authoritative reference available. false 20 5 us-gaap_IncreaseDecreaseInAccruedLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 300000000 300 false false 2 false true 247000000 247 false false 3 false true 429000000 429 false false No definition available. No authoritative reference available. false 21 5 amzn_AdditionsToUnearnedRevenue amzn false debit duration monetary The increase during the period in the liability reflecting services yet to be performed by the reporting entity for which... false false false false false false false false false 1 false true 1054000000 1054 false false 2 false true 449000000 449 false false 3 false true 244000000 244 false false The increase during the period in the liability reflecting services yet to be performed by the reporting entity for which cash or other forms of consideration was received. No authoritative reference available. false 22 5 amzn_AmortizationOfPreviouslyUnearnedRevenue amzn false debit duration monetary The decrease during the period in the liability reflecting the portion taken into income for services performed by the... false false false false false false false false false 1 false true -589000000 -589 false false 2 false true -344000000 -344 false false 3 false true -211000000 -211 false false The decrease during the period in the liability reflecting the portion taken into income for services performed by the reporting entity for which cash or other forms of consideration were previously received. No authoritative reference available. false 23 4 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 3293000000 3293 false false 2 false true 1697000000 1697 false false 3 false true 1405000000 1405 false false No definition available. No authoritative reference available. true 24 3 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 25 4 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -373000000 -373 false false 2 false true -333000000 -333 false false 3 false true -224000000 -224 false false No definition available. No authoritative reference available. false 26 4 us-gaap_PaymentsToAcquireBusinessesAndInterestInAffiliates us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -40000000 -40 false false 2 false true -494000000 -494 false false 3 false true -75000000 -75 false false No definition available. No authoritative reference available. false 27 4 us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1966000000 1966 false false 2 false true 1305000000 1305 false false 3 false true 1271000000 1271 false false No definition available. No authoritative reference available. false 28 4 us-gaap_PaymentsToAcquireInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -3890000000 -3890 false false 2 false true -1677000000 -1677 false false 3 false true -930000000 -930 false false No definition available. No authoritative reference available. false 29 4 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -2337000000 -2337 false false 2 false true -1199000000 -1199 false false 3 false true 42000000 42 false false No definition available. No authoritative reference available. true 30 3 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 31 4 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 105000000 105 false false 2 false true 159000000 159 false false 3 false true 257000000 257 false false No definition available. No authoritative reference available. false 32 4 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 -100000000 -100 false false 3 false true -248000000 -248 false false No definition available. No authoritative reference available. false 33 4 us-gaap_ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 87000000 87 false false 2 false true 98000000 98 false false 3 false true 115000000 115 false false No definition available. No authoritative reference available. false 34 4 us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities 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 -355000000 -355 false false 3 false true -74000000 -74 false false No definition available. No authoritative reference available. false 35 4 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -280000000 -280 false false 2 false true -198000000 -198 false false 3 false true 50000000 50 false false No definition available. No authoritative reference available. true 36 3 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -1000000 -1 false false 2 false true -70000000 -70 false false 3 false true 20000000 20 false false No definition available. No authoritative reference available. false 37 3 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 675000000 675 false false 2 false true 230000000 230 false false 3 false true 1517000000 1517 false false No definition available. No authoritative reference available. true 38 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 3444000000 3444 false false 2 false true 2769000000 2769 false false 3 false true 2539000000 2539 false false No definition available. No authoritative reference available. false 39 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 40 4 us-gaap_InterestPaid us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 32000000 32 false false 2 false true 64000000 64 false false 3 false true 67000000 67 false false No definition available. No authoritative reference available. false 41 4 us-gaap_IncomeTaxesPaid us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 48000000 48 false false 2 false true 53000000 53 false false 3 false true 24000000 24 false false No definition available. No authoritative reference available. false 42 4 amzn_SupplementalAssetsAcquiredUnderCapitalLeases amzn false debit duration monetary The amount of fixed assets acquired under noncash capital lease activity. false false false false false false false false false 1 false true 147000000 147 false false 2 false true 148000000 148 false false 3 false true 74000000 74 false false The amount of fixed assets acquired under noncash capital lease activity. No authoritative reference available. false 43 4 amzn_FixedAssetsAcquiredUnderBuildToSuitLeases amzn false debit duration monetary The amount of fixed assets acquired under noncash build-to-suit lease activity. false false false false false false false false false 1 false true 188000000 188 false false 2 false true 72000000 72 false false 3 false true 15000000 15 false false The amount of fixed assets acquired under noncash build-to-suit lease activity. No authoritative reference available. false 44 4 amzn_ConversionOfConvertibleNote amzn false credit duration monetary The amount of debt exchanged for equity instruments under noncash conversions. false false false false false false false false false 1 true true 0 0 false false 2 true true 605000000 605 false false 3 true true 1000000 1 false false The amount of debt exchanged for equity instruments under noncash conversions. No authoritative reference available. false false 3 40 false Millions UnKnown UnKnown false true