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2.0.0.10 false Statement Of Cash Flows Indirect - Audited (USD $) 108 - Statement - Statement Of Cash Flows Indirect - Audited true false In Millions false false 1 usd $ 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 usd $ 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 usd $ 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 Cash flows from operating activities: 3 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 6 Consolidated net income 4 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 true true false false 14848000000 14848 [1] false false false 2 true true false false 13899000000 13899 [1] false false false 3 true true false false 13137000000 13137 [1] false false false The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 7 Loss (income) from discontinued operations, net of tax 4 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 79000000 79 false false false 2 false true false false -146000000 -146 false false false 3 false true false false 132000000 132 false false false This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 43 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 -Subparagraph c false 8 Income from continuing operations 4 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 14927000000 14927 false false false 2 false true false false 13753000000 13753 false false false 3 false true false false 13269000000 13269 false false false This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 true 9 Adjustments to reconcile income from continuing operations to net cash provided by operating activities: 4 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false No definition available. false 10 Depreciation and amortization 5 us-gaap_DepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 7157000000 7157 false false false 2 false true false false 6739000000 6739 false false false 3 false true false false 6317000000 6317 false false false The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 11 Deferred income taxes 5 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false false false terselabel false 1 false true false false -504000000 -504 false false false 2 false true false false 581000000 581 false false false 3 false true false false -8000000 -8 false false false The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 false 12 Other operating activities 5 us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 301000000 301 false false false 2 false true false false 769000000 769 false false false 3 false true false false 504000000 504 false false false Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 13 Changes in certain assets and liabilities, net of effects of acquisitions: 5 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false No definition available. false 14 Increase in accounts receivable 6 us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -297000000 -297 false false false 2 false true false false -101000000 -101 false false false 3 false true false false -564000000 -564 false false false The net change during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 15 Decrease (increase) in inventories 6 us-gaap_IncreaseDecreaseInRetailRelatedInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 2265000000 2265 false false false 2 false true false false -220000000 -220 false false false 3 false true false false -775000000 -775 false false false The net change during the reporting period in the book value of merchandise inventory held by a retailer, wholesaler, or distributor for future sale; includes packaging and other supplies used to store, transport, or present merchandise inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 16 Increase (decrease) in accounts payable 6 us-gaap_IncreaseDecreaseInAccountsPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 1052000000 1052 false false false 2 false true false false -410000000 -410 false false false 3 false true false false 865000000 865 false false false The net change during the reporting period in the aggregate amount of obligations due within one year (or one business cycle). This may include trade payables, amounts due to related parties, royalties payable, and other obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 17 Increase in accrued liabilities 6 us-gaap_IncreaseDecreaseInAccruedLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 1348000000 1348 false false false 2 false true false false 2036000000 2036 false false false 3 false true false false 1034000000 1034 false false false The net change during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 18 Net cash provided by operating activities 4 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 26249000000 26249 false false false 2 false true false false 23147000000 23147 false false false 3 false true false false 20642000000 20642 false false false The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 19 Cash flows from investing activities: 3 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false No definition available. false 20 Payments for property and equipment 4 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -12184000000 -12184 false false false 2 false true false false -11499000000 -11499 false false false 3 false true false false -14937000000 -14937 false false false The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c false 21 Proceeds from disposal of property and equipment 4 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 1002000000 1002 false false false 2 false true false false 714000000 714 false false false 3 false true false false 957000000 957 false false false The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph c false 22 Proceeds from (payments for) disposal of certain international operations, net 4 us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 0 0 false false false 2 false true false false 838000000 838 false false false 3 false true false false -257000000 -257 false false false The net cash inflow (outflow) associated with the sale or (acquisition) of a business segment during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16, 17 false 23 Investment in international operations, net of cash acquired 4 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false 0 0 false false false 2 false true false false -1576000000 -1576 false false false 3 false true false false -1338000000 -1338 false false false The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 false 24 Other investing activities 4 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -438000000 -438 false false false 2 false true false false 781000000 781 false false false 3 false true false false -95000000 -95 false false false The net cash outflow (inflow) from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 false 25 Net cash used in investing activities 4 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -11620000000 -11620 false false false 2 false true false false -10742000000 -10742 false false false 3 false true false false -15670000000 -15670 false false false The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 26 Cash flows from financing activities: 3 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false No definition available. false 27 Increase (decrease) in short-term borrowings, net 4 us-gaap_ProceedsFromRepaymentsOfShortTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -1033000000 -1033 false false false 2 false true false false -3745000000 -3745 false false false 3 false true false false 2376000000 2376 false false false The net cash inflow (outflow) for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 28 Proceeds from issuance of long-term debt 4 us-gaap_ProceedsFromIssuanceOfLongTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 5546000000 5546 false false false 2 false true false false 6566000000 6566 false false false 3 false true false false 11167000000 11167 false false false The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 29 Payment of long-term debt 4 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -6033000000 -6033 false false false 2 false true false false -5387000000 -5387 false false false 3 false true false false -8723000000 -8723 false false false The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 30 Dividends paid 4 us-gaap_PaymentsOfDividends us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -4217000000 -4217 false false false 2 false true false false -3746000000 -3746 false false false 3 false true false false -3586000000 -3586 false false false The cash outflow from the entity's earnings to the shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 31 Purchase of Company stock 4 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -7276000000 -7276 false false false 2 false true false false -3521000000 -3521 false false false 3 false true false false -7691000000 -7691 false false false The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 32 Purchase of redeemable noncontrolling interest 4 us-gaap_ProceedsFromPaymentsToMinorityShareholders us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -436000000 -436 false false false 2 false true false false 0 0 false false false 3 false true false false 0 0 false false false The net cash inflow (outflow) from noncontrolled interest to increase or decrease the number of shares they have in the entity. This does not include dividends paid to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 33 Payment of capital lease obligations 4 us-gaap_RepaymentsOfLongTermCapitalLeaseObligations us-gaap true credit duration monetary No definition available. false false false false false false false false false false true negated false 1 false true false false -346000000 -346 false false false 2 false true false false -352000000 -352 false false false 3 false true false false -343000000 -343 false false false The cash outflow for the obligation for lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26, 31 false 34 Other financing activities 4 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false -396000000 -396 false false false 2 false true false false 267000000 267 false false false 3 false true false false -622000000 -622 false false false The net cash inflow (outflow) from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 false 35 Net cash used in financing activities 4 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false -14191000000 -14191 false false false 2 false true false false -9918000000 -9918 false false false 3 false true false false -7422000000 -7422 false false false The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 36 Effect of exchange rates on cash and cash equivalents 3 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 194000000 194 false false false 2 false true false false -781000000 -781 false false false 3 false true false false 252000000 252 false false false The effect of exchange rate changes on cash balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 25 false 37 Net increase (decrease) in cash and cash equivalents 3 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false false false totallabel false 1 false true false false 632000000 632 false false false 2 false true false false 1706000000 1706 false false false 3 false true false false -2198000000 -2198 false false false The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 38 Cash and cash equivalents at beginning of year 3 wmt_TotalCashCashEquivalents wmt false debit instant monetary Cash and cash equivalents include investments with a maturity of three months or less when purchased. The majority of... false false false false false false false false true false false periodstartlabel false 1 false true false false 7275000000 7275 [2],[3] false false false 2 false true false false 5569000000 5569 [2],[3] false false false 3 false true false false 7767000000 7767 [2] false false false Cash and cash equivalents include investments with a maturity of three months or less when purchased. The majority of payments due from banks for third party credit card, debit card and electronic benefit transactions (EBT) process within 24-48 hours, except for transactions occurring on a Friday, which are generally processed on the following Monday. All credit card, debit card, and EBT transactions that process in less than seven days are classified as cash and cash equivalents. In addition, cash and cash equivalents include restricted cash related to cash collateral holdings from various counterparties as required by certain derivative and trust agreements. No authoritative reference available. false 39 Cash and cash equivalents at end of year 3 wmt_TotalCashCashEquivalents wmt false debit instant monetary Cash and cash equivalents include investments with a maturity of three months or less when purchased. The majority of... false false false false false false false false false true false periodendlabel false 1 false true false false 7907000000 7907 [3] false false false 2 false true false false 7275000000 7275 [2],[3] false false false 3 false true false false 5569000000 5569 [2],[3] false false false Cash and cash equivalents include investments with a maturity of three months or less when purchased. The majority of payments due from banks for third party credit card, debit card and electronic benefit transactions (EBT) process within 24-48 hours, except for transactions occurring on a Friday, which are generally processed on the following Monday. All credit card, debit card, and EBT transactions that process in less than seven days are classified as cash and cash equivalents. In addition, cash and cash equivalents include restricted cash related to cash collateral holdings from various counterparties as required by certain derivative and trust agreements. No authoritative reference available. false 40 Supplemental disclosure of cash flow information 3 us-gaap_SupplementalCashFlowInformationAbstract us-gaap true na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false No definition available. false 41 Income tax paid 4 us-gaap_IncomeTaxesPaid us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 7389000000 7389 false false false 2 false true false false 6596000000 6596 false false false 3 false true false false 6299000000 6299 false false false The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -Subparagraph f false 42 Interest paid 4 us-gaap_InterestPaid us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 false true false false 2141000000 2141 false false false 2 false true false false 1787000000 1787 false false false 3 false true false false 1622000000 1622 false false false The amount of cash paid during the current period for interest owed on money borrowed; includes amount of interest capitalized Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 false 43 Capital lease obligations incurred 4 us-gaap_CapitalLeaseObligationsIncurred us-gaap true credit duration monetary No definition available. false false false false false false false false false false false false 1 true true false false 61000000 61 false false false 2 true true false false 284000000 284 false false false 3 true true false false 447000000 447 false false false The increase during the period in capital lease obligations due to entering into new capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 false 1 Includes $14 million in fiscal 2010 that is related to the redeemable noncontrolling interest. 2 Includes cash and cash equivalents of discontinued operations of $51 million at February 1, 2007. 3 Includes cash and cash equivalents of discontinued operations of $77 million at January 31, 2008. false 3 39 false Millions UnKnown UnKnown false true