1.0.0.3 false Statement Of Income (USD $) In Millions, except Per Share data 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_SalesRevenueNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 24509000000 24509 false false 2 true true 19166000000 19166 false false 3 true true 14835000000 14835 false false No definition available. No authoritative reference available. false 6 3 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 18978000000 18978 false false 2 false true 14896000000 14896 false false 3 false true 11482000000 11482 false false No definition available. No authoritative reference available. false 7 3 us-gaap_GrossProfit us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 5531000000 5531 false false 2 false true 4270000000 4270 false false 3 false true 3353000000 3353 false false No definition available. No authoritative reference available. true 8 3 us-gaap_OperatingExpensesAbstract 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 4 amzn_FulfillmentExpense amzn false debit duration monetary Costs incurred to operate and staff fulfillment and customer service centers, including buying, receiving, inspecting, and... false false false false false false false false false 1 false true 2052000000 2052 [1] false false 2 false true 1658000000 1658 [1] false false 3 false true 1292000000 1292 [1] false false Costs incurred to operate and staff fulfillment and customer service centers, including buying, receiving, inspecting, and warehousing inventories; picking, packaging and preparing customer orders for shipment; payment processing and related transaction costs. Fulfillment costs also include amounts paid to third parties that assist us in fulfillment and customer service operations. No authoritative reference available. false 10 4 us-gaap_MarketingExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 680000000 680 [1] false false 2 false true 482000000 482 [1] false false 3 false true 344000000 344 [1] false false No definition available. No authoritative reference available. false 11 4 amzn_TechnologyAndContentExpense amzn false debit duration monetary Payroll and related expenses for application development, editorial content, merchandising selection, and systems support;... false false false false false false false false false 1 false true 1240000000 1240 [1] false false 2 false true 1033000000 1033 [1] false false 3 false true 818000000 818 [1] false false Payroll and related expenses for application development, editorial content, merchandising selection, and systems support; and costs associated with computing, storage and telecommunications infrastructure. No authoritative reference available. false 12 4 us-gaap_GeneralAndAdministrativeExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 328000000 328 [1] false false 2 false true 279000000 279 [1] false false 3 false true 235000000 235 [1] false false No definition available. No authoritative reference available. false 13 4 us-gaap_OtherCostAndExpenseOperating us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 102000000 102 false false 2 false true -24000000 -24 false false 3 false true 9000000 9 false false No definition available. No authoritative reference available. false 14 4 us-gaap_OperatingExpenses us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 4402000000 4402 false false 2 false true 3428000000 3428 false false 3 false true 2698000000 2698 false false No definition available. No authoritative reference available. true 15 3 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 1129000000 1129 false false 2 false true 842000000 842 false false 3 false true 655000000 655 false false No definition available. No authoritative reference available. true 16 3 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 37000000 37 false false 2 false true 83000000 83 false false 3 false true 90000000 90 false false No definition available. No authoritative reference available. false 17 3 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -34000000 -34 false false 2 false true -71000000 -71 false false 3 false true -77000000 -77 false false No definition available. No authoritative reference available. false 18 3 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 29000000 29 false false 2 false true 47000000 47 false false 3 false true -8000000 -8 false false No definition available. No authoritative reference available. false 19 3 us-gaap_NonoperatingIncomeExpense 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 59000000 59 false false 3 false true 5000000 5 false false No definition available. No authoritative reference available. true 20 3 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 1161000000 1161 false false 2 false true 901000000 901 false false 3 false true 660000000 660 false false No definition available. No authoritative reference available. true 21 3 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -253000000 -253 false false 2 false true -247000000 -247 false false 3 false true -184000000 -184 false false No definition available. No authoritative reference available. false 22 3 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -6000000 -6 false false 2 false true -9000000 -9 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 23 3 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 902000000 902 false false 2 true true 645000000 645 false false 3 true true 476000000 476 false false No definition available. No authoritative reference available. true 24 3 us-gaap_EarningsPerShareBasic us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 2.08 2.08 false false 2 true true 1.52 1.52 false false 3 true true 1.15 1.15 false false No definition available. No authoritative reference available. false 25 3 us-gaap_EarningsPerShareDiluted us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 2.04 2.04 false false 2 true true 1.49 1.49 false false 3 true true 1.12 1.12 false false No definition available. No authoritative reference available. false 26 3 us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract 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 27 4 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic us-gaap true na duration shares No definition available. false false false false false false false false false 1 false true 433000000 433 false false 2 false true 423000000 423 false false 3 false true 413000000 413 false false No definition available. No authoritative reference available. false 28 4 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding us-gaap true na duration shares No definition available. false false false false false false false false false 1 false true 442000000 442 false false 2 false true 432000000 432 false false 3 false true 424000000 424 false false No definition available. No authoritative reference available. false 1 Includes stock-based compensation as follows: Fulfillment $ 79 $ 61 $ 39 Marketing 20 13 8 Technology and content 182 151 103 General and administrative 60 50 35 false 3 24 false Millions Millions Hundreds false true