Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Jan. 31, 2019	Mar. 26, 2019	Jul. 31, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	WALMART INC.
Entity Central Index Key	0000104169
Current Fiscal Year End Date	--01-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Jan. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		2,869,684,230
Entity Voluntary Filers	No
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Public Float			$ 126,810,267,035

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Revenues:
Net Sales	$ 510,329	$ 495,761	$ 481,317
Membership and other income	4,076	4,582	4,556
Total revenues	514,405	500,343	485,873
Costs and expenses:
Cost of sales	385,301	373,396	361,256
Operating, selling, general and administrative expenses	107,147	106,510	101,853
Operating income	21,957	20,437	22,764
Interest:
Debt	1,975	1,978	2,044
Capital lease and financing obligations	371	352	323
Interest income	(217)	(152)	(100)
Interest, net	2,129	2,178	2,267
Loss on extinguishment of debt	0	3,136	0
Other (gains) and losses	8,368	0	0
Income before income taxes	11,460	15,123	20,497
Provision for income taxes	4,281	4,600	6,204
Consolidated net income	7,179	10,523	14,293
Consolidated net income attributable to noncontrolling interest	(509)	(661)	(650)
Consolidated net income attributable to Walmart	$ 6,670	$ 9,862	$ 13,643
Net income per common share:
Basic net income per common share attributable to Walmart	$ 2.28	$ 3.29	$ 4.40
Diluted net income per common share attributable to Walmart	$ 2.26	$ 3.28	$ 4.38
Weighted-average common shares outstanding:
Basic	2,929	2,995	3,101
Diluted	2,945	3,010	3,112
Dividends declared per common share	$ 2.08	$ 2.04	$ 2.00

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Consolidated net income	$ 7,179	$ 10,523	$ 14,293
Consolidated net income attributable to noncontrolling interest	(509)	(661)	(650)
Consolidated net income attributable to Walmart	6,670	9,862	13,643
Other comprehensive income (loss), net of income taxes
Currency translation and other	(226)	2,540	(3,027)
Minimum pension liability	131	147	(397)
Unrealized gain on available-for-sale securities	0	1,501	145
Other comprehensive income (loss), net of income taxes	(113)	4,220	(2,845)
Less other comprehensive income (loss) attributable to noncontrolling interest	188	(169)	210
Other comprehensive income (loss) attributable to Walmart	75	4,051	(2,635)
Comprehensive income, net of income taxes	7,066	14,743	11,448
Comprehensive (income) loss attributable to noncontrolling interest	(321)	(830)	(440)
Comprehensive income attributable to Walmart	6,745	13,913	11,008
Net investment hedging
Other comprehensive income (loss), net of income taxes
Derivative instruments	272	(405)	413
Cash flow hedging
Other comprehensive income (loss), net of income taxes
Derivative instruments	$ (290)	$ 437	$ 21

Consolidated Balance Sheets - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Current assets:
Cash and cash equivalents	$ 7,722	$ 6,756
Receivables, net	6,283	5,614
Inventories	44,269	43,783
Prepaid expenses and other	3,623	3,511
Total current assets	61,897	59,664
Property and equipment:
Property and equipment	185,810	185,154
Less accumulated depreciation	(81,493)	(77,479)
Property and equipment, net	104,317	107,675
Property under capital lease and financing obligations:
Property under capital lease and financing obligations	12,760	12,703
Less accumulated amortization	(5,682)	(5,560)
Property under capital lease and financing obligations, net	7,078	7,143
Goodwill	31,181	18,242
Other long-term assets	14,822	11,798
Total assets	219,295	204,522
Current liabilities:
Short-term borrowings	5,225	5,257
Accounts payable	47,060	46,092
Accrued liabilities	22,159	22,122
Accrued income taxes	428	645
Long-term debt due within one year	1,876	3,738
Capital lease and financing obligations due within one year	729	667
Total current liabilities	77,477	78,521
Long-term debt	43,520	30,045
Long-term capital lease and financing obligations	6,683	6,780
Deferred income taxes and other	11,981	8,354
Commitments and contingencies
Equity:
Common stock	288	295
Capital in excess of par value	2,965	2,648
Retained earnings	80,785	85,107
Accumulated other comprehensive loss	(11,542)	(10,181)
Total Walmart shareholders' equity	72,496	77,869
Noncontrolling interest	7,138	2,953
Total equity	79,634	80,822
Total liabilities and equity	$ 219,295	$ 204,522

Consolidated Statement Of Shareholders' Equity and Redeemable Noncontrolling Interest - USD ($) shares in Millions, $ in Millions	Total	Common stock	Capital in excess of par value	Retained earnings	Accumulated other comprehensive income (loss)	Total Walmart shareholders' equity	Noncontrolling interest
Consolidated net income	$ 14,293			$ 13,643		$ 13,643	$ 650
Other comprehensive income (loss), net of income taxes	(2,845)				$ (2,635)	(2,635)	(210)
Balances, in shares at Jan. 31, 2016		3,162
Balances at Jan. 31, 2016	83,611	$ 317	$ 1,805	90,021	(11,597)	80,546	3,065
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(6,216)			(6,216)		(6,216)
Purchase of Company stock (in shares)		(120)
Purchase of Company stock	(8,276)	$ (12)	(174)	(8,090)		(8,276)
Cash dividend declared to noncontrolling interest	(519)						(519)
Other, in shares		6
Other	487	$ 0	740	(4)		736	(249)
Balances, in shares at Jan. 31, 2017		3,048
Balances at Jan. 31, 2017	80,535	$ 305	2,371	89,354	(14,232)	77,798	2,737
Consolidated net income	10,523			9,862		9,862	661
Other comprehensive income (loss), net of income taxes	4,220				4,051	4,051	169
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(6,124)			(6,124)		(6,124)
Purchase of Company stock (in shares)		(103)
Purchase of Company stock	(8,204)	$ (10)	(219)	(7,975)		(8,204)
Cash dividend declared to noncontrolling interest	(687)						(687)
Other, in shares		7
Other	559		496	(10)		486	73
Balances, in shares at Jan. 31, 2018		2,952
Balances at Jan. 31, 2018	80,822	$ 295	2,648	85,107	(10,181)	77,869	2,953
Adoption of new accounting standards on February 1, 2018, net of income taxes	924			2,361	(1,436)	925	(1)
Consolidated net income	7,179			6,670		6,670	509
Other comprehensive income (loss), net of income taxes	(113)				75	75	(188)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(6,102)			(6,102)		(6,102)
Purchase of Company stock (in shares)		(80)
Purchase of Company stock	(7,487)	$ (8)	(245)	(7,234)		(7,487)
Cash dividend declared to noncontrolling interest	(488)						(488)
Noncontrolling interest of acquired entity	4,345						4,345
Other, in shares		(6)
Other	554	$ 1	562	(17)		546	8
Balances, in shares at Jan. 31, 2019		2,878
Balances at Jan. 31, 2019	$ 79,634	$ 288	$ 2,965	$ 80,785	$ (11,542)	$ 72,496	$ 7,138

Consolidated Statement Of Shareholders' Equity and Redeemable Noncontrolling Interest (Parenthetical) - $ / shares	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share	$ 2.08	$ 2.04	$ 2.00

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Cash flows from operating activities:
Consolidated net income	$ 7,179	$ 10,523	$ 14,293
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	10,678	10,529	10,080
Unrealized Gain (Loss) on Investments	3,516	0	0
(Gains) and losses for disposal of business operations	4,850	0	0
Deferred income taxes	(499)	(304)	761
Loss on extinguishment of debt	0	3,136	0
Other operating activities	1,734	1,210	206
Changes in certain assets and liabilities, net of effects of acquisitions:
Receivables, net	(368)	(1,074)	(402)
Inventories	(1,311)	(140)	1,021
Accounts payable	1,831	4,086	3,942
Accrued liabilities	183	928	1,280
Accrued income taxes	(40)	(557)	492
Net cash provided by operating activities	27,753	28,337	31,673
Cash flows from investing activities:
Payments for property and equipment	(10,344)	(10,051)	(10,619)
Proceeds from the disposal of property and equipment	519	378	456
Proceeds from the disposal of certain operations	876	1,046	662
Purchase of available for sale securities	0	0	(1,901)
Payments for business acquisitions, net of cash acquired	(14,656)	(375)	(2,463)
Other investing activities	(431)	(77)	(31)
Net cash used in investing activities	(24,036)	(9,079)	(13,896)
Cash flows from financing activities:
Net change in short-term borrowings	(53)	4,148	(1,673)
Proceeds from issuance of long-term debt	15,872	7,476	137
Repayments of long-term debt	(3,784)	(13,061)	(2,055)
Premiums paid to extinguish debt	0	(3,059)	0
Dividends paid	(6,102)	(6,124)	(6,216)
Purchase of Company stock	(7,410)	(8,296)	(8,298)
Dividends paid to noncontrolling interest	(431)	(690)	(479)
Purchase of noncontrolling interest	0	(8)	(90)
Other financing activities	(629)	(261)	(398)
Net cash used in financing activities	(2,537)	(19,875)	(19,072)
Effect of Exchange Rate on Cash, Cash Equivalents, and Restricted Cash	(438)	487	(452)
Net increase (decrease) in cash, cash equivalents and restricted cash	742	(130)	(1,747)
Cash, cash equivalents and restricted cash at beginning of year	7,014	7,144	8,891
Cash, cash equivalents and restricted cash at end of period	7,756	7,014	7,144
Supplemental disclosure of cash flow information:
Income taxes paid	3,982	6,179	4,507
Interest paid	$ 2,348	$ 2,450	$ 2,351

Summary of Significant Accounting Policies

12 Months Ended

Jan. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation

Summary of Significant Accounting Policies

General

Walmart Inc. ("Walmart" or the "Company") helps people around the world save money and live better – anytime and anywhere – by providing the opportunity to shop in retail stores and through eCommerce. Through innovation, the Company is striving to continuously improve a customer-centric experience that seamlessly integrates eCommerce and retail stores in an omni-channel offering that saves time for its customers. Each week, the Company serves over 275 million customers who visit its more than 11,300 stores and numerous eCommerce websites under 58 banners in 27 countries.

The Company's operations comprise three reportable segments: Walmart U.S., Walmart International and Sam's Club.

Principles of Consolidation

The Consolidated Financial Statements include the accounts of Walmart and its subsidiaries as of and for the fiscal years ended January 31, 2019 ("fiscal 2019"), January 31, 2018 ("fiscal 2018") and January 31, 2017 ("fiscal 2017"). Intercompany accounts and transactions have been eliminated in consolidation. The Company consolidates variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations. Investments for which the Company exercises significant influence but does not have control are accounted for under the equity method. These variable interest entities and equity method investments are immaterial to the Company's Consolidated Financial Statements.

The Company's Consolidated Financial Statements are based on a fiscal year ending on January 31 for the United States ("U.S.") and Canadian operations. The Company consolidates all other operations generally using a one-month lag and based on a calendar year. There were no significant intervening events during the month of January 2019 related to the operations consolidated using a lag that materially affected the Consolidated Financial Statements.

Use of Estimates

The Consolidated Financial Statements have been prepared in conformity with U.S. generally accepted accounting principles. Those principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Management's estimates and assumptions also affect the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates.

Cash and Cash Equivalents

The Company considers investments with a maturity when purchased of three months or less to be cash equivalents. All credit card, debit card and electronic transfer transactions that process in less than seven days are classified as cash and cash equivalents. The amounts due from banks for these transactions classified as cash and cash equivalents totaled $1.4 billion and $1.6 billion as of January 31, 2019 and 2018, respectively.

The Company's cash balances are held in various locations around the world. Substantially all of the Company's $7.7 billion and $6.8 billion of cash and cash equivalents as of January 31, 2019 and January 31, 2018 were held outside of the U.S. Cash and cash equivalents held outside of the U.S. are generally utilized to support liquidity needs in the Company's non-U.S. operations.

The Company uses intercompany financing arrangements in an effort to ensure cash can be made available in the country in which it is needed with the minimum cost possible. During fiscal 2019, the Company repatriated to the U.S. $5.3 billion of cash at a tax cost of approximately $40 million.

As of January 31, 2019 and 2018, cash and cash equivalents of approximately $2.8 billion and $1.4 billion, respectively, may not be freely transferable to the U.S. due to local laws or other restrictions. Of the $2.8 billion as of January 31, 2019, approximately $1.2 billion can only be accessed through dividends or intercompany financing arrangements subject to approval of Flipkart Private Limited ("Flipkart") minority shareholders; however, this cash is expected to be utilized to fund the operations of Flipkart.

Restricted Cash

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows–Restricted Cash (Topic 230), which requires restricted cash to be included with cash and cash equivalents when reconciling the beginning and ending amounts on the statement of cash flows. The Company adopted this ASU on February 1, 2018. Restricted cash held outside of cash and cash equivalents was $34 million as of January 31, 2019, primarily recorded in prepaid expenses and other in the Consolidated Balance Sheets, and $300 million as of January 31, 2018, primarily recorded in other long-term assets in the Consolidated Balance Sheets.

Receivables

Receivables are stated at their carrying values, net of a reserve for doubtful accounts, and are primarily due from the following: insurance companies resulting from pharmacy sales; banks for customer credit and debit cards and electronic bank transfers that take in excess of seven days to process; governments for income taxes; suppliers for marketing or incentive programs; and real estate transactions.

Inventories

The Company values inventories at the lower of cost or market as determined primarily by the retail inventory method of accounting, using the last-in, first-out ("LIFO") method for Walmart U.S. segment's inventories. The inventory at the Walmart International segment is valued primarily by the retail inventory method of accounting, using the first-in, first-out ("FIFO") method. The retail inventory method of accounting results in inventory being valued at the lower of cost or market, since permanent markdowns are immediately recorded as a reduction of the retail value of inventory. The inventory at the Sam's Club segment is valued using the weighted-average cost LIFO method. As of January 31, 2019 and January 31, 2018, the Company's inventories valued at LIFO approximated those inventories as if they were valued at FIFO.

Assets Held for Sale

Assets held for sale represent components and businesses that meet accounting requirements to be classified as held for sale and are presented as single asset and liability amounts in the Company's financial statements with a valuation allowance, if necessary, to recognize the net carrying amount at the lower of cost or fair value, less costs to sell. The Company reviews all businesses and assets held for sale each reporting period to determine whether the existing carrying amounts are fully recoverable in comparison to estimated fair values. As of January 31, 2019 and January 31, 2018, immaterial amounts for assets and liabilities held for sale were classified in prepaid expenses and other and accrued liabilities, respectively, in the Consolidated Balance Sheets.

Property and Equipment

Property and equipment are initially recorded at cost. Gains or losses on disposition are recognized as earned or incurred. Costs of major improvements are capitalized, while costs of normal repairs and maintenance are expensed as incurred. The following table summarizes the Company's property and equipment balances and includes the estimated useful lives that are generally used to depreciate the assets on a straight-line basis:



		As of January 31,
(Amounts in millions)	Estimated Useful Lives	2019			2018
Land	N/A	$	24,526		$	25,298
Buildings and improvements	3-40 years	101,006			101,155
Fixtures and equipment	1-30 years	54,488			52,695
Transportation equipment	3-15 years	2,316			2,387
Construction in progress	N/A	3,474			3,619
Property and equipment		$	185,810		$	185,154
Accumulated depreciation		(81,493		)	(77,479		)
Property and equipment, net		$	104,317		$	107,675

Leasehold improvements are depreciated or amortized over the shorter of the estimated useful life of the asset or the remaining expected lease term. Total depreciation and amortization expense for property and equipment, property under financing obligations, property under capital leases and intangible assets for fiscal 2019, 2018 and 2017 was $10.7 billion, $10.5 billion and $10.1 billion, respectively.

Leases

The Company leases land, buildings, fixtures and equipment and transportation equipment. The Company estimates the expected lease term by assuming the exercise of renewal options where an economic penalty exists that would preclude the abandonment of the lease at the end of the initial non-cancelable term and the exercise of such renewal is at the sole discretion of the Company. The expected lease term is used in the determination of whether a store or club lease is a capital or operating lease and in the calculation of straight-line rent expense. Additionally, the useful life of leasehold improvements is limited by the expected lease term or the economic life of the asset, whichever is shorter. If significant expenditures are made for leasehold improvements late in the expected lease term and renewal is reasonably assured, the useful life of the leasehold improvement is limited to the end of the renewal period or economic life of the asset, whichever is shorter. Rent abatements and escalations are considered in the calculation of minimum lease payments in the Company's capital lease tests and in determining straight-line rent expense for operating leases.

The Company is often involved in the construction of its leased stores. In certain cases, payments made for certain structural components included in the lessor's construction of the leased assets result in the Company being deemed the owner of the leased assets for accounting purposes. As a result, the payments, regardless of the significance, are automatic indicators of ownership and require the Company to capitalize the lessor's total project cost with a corresponding financing obligation. Upon completion of the lessor's project, the Company performs a sale-leaseback analysis to determine if these assets and the related financing obligation can be derecognized from the Company's Consolidated Balance Sheets. If the Company is deemed to have "continuing involvement," the leased assets and the related financing obligation remain on the Company's Consolidated Balance Sheets and are generally amortized over the lease term. At the end of the lease term, including exercise of any renewal options, the net remaining financing obligation over the net carrying value of the fixed asset will be recognized as a non-cash gain.

Long-Lived Assets

Long-lived assets are initially recorded at cost. Management reviews long-lived assets for indicators of impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is performed at the lowest level of identifiable cash flows, which is at the individual store or club level. Undiscounted cash flows expected to be generated by the related assets are estimated over the assets' useful lives based on updated projections. If the evaluation indicates that the carrying amount of the assets may not be recoverable, any potential impairment is measured based upon the fair value of the related asset or asset group as determined by an appropriate market appraisal or other valuation technique.

Goodwill and Other Acquired Intangible Assets

Goodwill represents the excess of the purchase price over the fair value of net assets acquired in business combinations and is allocated to the appropriate reporting unit when acquired. Other acquired intangible assets are stated at the fair value acquired as determined by a valuation technique commensurate with the intended use of the related asset. Goodwill and indefinite-lived intangible assets are not amortized; rather, they are evaluated for impairment annually and whenever events or changes in circumstances indicate that the value of the asset may be impaired. Definite-lived intangible assets are considered long-lived assets and are amortized on a straight-line basis over the periods that expected economic benefits will be provided.

Goodwill is assigned to the reporting unit which consolidates the acquisition. Components within the same reportable segment are aggregated and deemed a single reporting unit if the components have similar economic characteristics. As of January 31, 2019, the Company's reporting units consisted of Walmart U.S., Walmart International and Sam's Club. Goodwill is evaluated for impairment using either a qualitative or quantitative approach for each of the Company's reporting units. Generally, a qualitative assessment is first performed to determine whether a quantitative goodwill impairment test is necessary. If management determines, after performing an assessment based on the qualitative factors, that the fair value of the reporting unit is more likely than not less than the carrying amount, or that a fair value of the reporting unit substantially in excess of the carrying amount cannot be assured, then a quantitative goodwill impairment test would be required. The quantitative test for goodwill impairment is performed by determining the fair value of the related reporting units. Fair value is measured based on the discounted cash flow method and relative market-based approaches. After evaluation, management determined the fair value of each reporting unit is greater than the carrying amount and, accordingly, the Company has not recorded any impairment charges related to goodwill.

The following table reflects goodwill activity, by reportable segment, for fiscal 2019 and 2018:



(Amounts in millions)	Walmart U.S.		Walmart International			Sam's Club		Total
Balances as of February 1, 2017	$	2,236	$	14,488		$	313	$	17,037
Changes in currency translation and other	—		996			—		996
Acquisitions	209		—			—		209
Balances as of January 31, 2018	2,445		15,484			313		18,242
Changes in currency translation and other	—		(743		)	—		(743		)
Acquisitions ⁽¹⁾	107		13,575			—		13,682
Balances as of January 31, 2019	$	2,552	$	28,316		$	313	$	31,181

⁽¹⁾ Goodwill recorded in fiscal 2019 for Walmart International relates to Flipkart.

Intangible assets are included in other long-term assets in the Company's Consolidated Balance Sheets. These assets are evaluated for impairment based on their fair values using valuation techniques which are updated annually based on the most recent variables and assumptions. There were no significant impairment charges related to intangible assets for fiscal 2019, 2018 and 2017.

Fair Value Measurement

In January 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-01, Financial Instruments–Overall (Topic 825), which updated certain aspects of recognition, measurement, presentation and disclosure of financial instruments ("ASU 2016-01"). The Company adopted this ASU on February 1, 2018, which primarily impacted the Company's accounting for its investment in JD.com, Inc. ("JD") and resulted in a positive adjustment to retained earnings of approximately $2.6 billion, net of tax, based on the market value of the Company's investment in JD as of January 31, 2018. The adoption required prospective changes in fair value of the Company's investment in JD to be recorded in the Consolidated Statement of Income, which the Company classifies in other gains and losses.

The Company records and discloses certain financial and non-financial assets and liabilities at fair value. The fair value of an asset is the price at which the asset could be sold in an orderly transaction between unrelated, knowledgeable and willing parties able to engage in the transaction. The fair value of a liability is the amount that would be paid to transfer the liability to a new obligor in a transaction between such parties, not the amount that would be paid to settle the liability with the creditor.

Self Insurance Reserves

The Company self-insures a number of risks, including, but not limited to, workers' compensation, general liability, auto liability, product liability and certain employee-related healthcare benefits. Standard actuarial procedures and data analysis are used to estimate the liabilities associated with these risks as of the balance sheet date on an undiscounted basis. The recorded liabilities reflect the ultimate cost for claims incurred but not paid and any estimable administrative run-out expenses related to the processing of these outstanding claim payments. On a regular basis, the liabilities are evaluated for appropriateness with claims reserve valuations. To limit exposure to some risks, the Company maintains insurance coverage with varying limits and retentions, including stop-loss insurance coverage for workers' compensation, general liability and auto liability.

Derivatives

The Company uses derivatives for hedging purposes to manage its exposure to changes in interest and currency exchange rates, as well as to maintain an appropriate mix of fixed- and variable-rate debt. Use of derivatives in hedging programs subjects the Company to certain risks, such as market and credit risks. Market risk represents the possibility that the value of the derivatives will change. In a hedging relationship, the change in the value of the derivative is offset to a great extent by the change in the value of the underlying hedged item. Credit risk related to a derivative represents the possibility that the counterparty will not fulfill the terms of the contract. Credit risk is monitored through established approval procedures, including setting concentration limits by counterparty, reviewing credit ratings and requiring collateral from the counterparty when appropriate. The Company only enters into derivatives with counterparties rated "A-" or better by nationally recognized credit rating agencies. Subsequent to entering into derivatives, the Company regularly monitors the credit ratings of its counterparties. The notional, or contractual, amount of the Company's derivatives is used to measure interest to be paid or received and does not represent the Company's exposure due to credit risk.

The contractual terms of the Company's derivatives closely mirror those of the hedged items, providing a high degree of risk reduction and correlation. Contracts that are effective at meeting the risk reduction and correlation criteria are recorded using hedge accounting. If a derivative is recorded using hedge accounting, depending on the nature of the hedge, changes in fair value will either be offset against the change in fair value of the hedged assets, liabilities or firm commitments through earnings or be recognized in accumulated other comprehensive loss until the hedged item is recognized in earnings. Any hedge ineffectiveness is immediately recognized in earnings. The Company's net investment and cash flow hedges are highly effective and the ineffective portion has not been, and is not expected to be, significant. Derivatives that do not meet the criteria for hedge accounting, or contracts for which the Company has not elected hedge accounting, are recorded at fair value with unrealized gains or losses reported in earnings during the period of the change.

Fair Value Hedges

The Company is a party to receive fixed-rate, pay variable-rate interest rate swaps that the Company uses to hedge the fair value of fixed-rate debt. The notional amounts are used to measure interest to be paid or received and do not represent the Company's exposure due to credit loss. The Company's interest rate swaps that receive fixed-interest rate payments and pay variable-interest rate payments are designated as fair value hedges. As the specific terms and notional amounts of the derivatives match those of the fixed-rate debt being hedged, the derivatives are assumed to be perfectly effective hedges. Changes in the fair values of these derivatives are recorded in earnings, but are offset by corresponding changes in the fair values of the hedged items, also recorded in earnings, and, accordingly, do not impact the Company's Consolidated Statements of Income. These derivatives will mature on dates ranging from October 2020 to April 2024.

Net Investment Hedges

The Company is a party to cross-currency interest rate swaps that the Company uses to hedge its net investments. The agreements are contracts to exchange fixed-rate payments in one currency for fixed-rate payments in another currency. All changes in the fair value of these derivatives are recorded in accumulated other comprehensive loss, offsetting the currency translation adjustment of the related investment that is also recorded in accumulated other comprehensive loss. These derivatives will mature on dates ranging from July 2020 to February 2030.

The Company has issued foreign-currency-denominated long-term debt as hedges of net investments of certain of its foreign operations. These foreign-currency-denominated long-term debt issuances are designated and qualify as nonderivative hedging instruments. Accordingly, the foreign currency translation of these debt instruments is recorded in accumulated other comprehensive loss, offsetting the foreign currency translation adjustment of the related net investment that is also recorded in accumulated other comprehensive loss.

Cash Flow Hedges

The Company is a party to receive fixed-rate, pay fixed-rate cross-currency interest rate swaps to hedge the currency exposure associated with the forecasted payments of principal and interest of certain non-U.S. denominated debt. The swaps are designated as cash flow hedges of the currency risk related to payments on the non-U.S. denominated debt. The effective portion of changes in the fair value of derivatives designated as cash flow hedges of foreign exchange risk is recorded in accumulated other comprehensive loss and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The hedged items are recognized foreign currency-denominated liabilities that are re-measured at spot exchange rates each period, and the assessment of effectiveness (and measurement of any ineffectiveness) is based on total changes in the related derivative's cash flows. As a result, the amount reclassified into earnings each period includes an amount that offsets the related transaction gain or loss arising from that re-measurement and the adjustment to earnings for the period's allocable portion of the initial spot-forward difference associated with the hedging instrument. These derivatives will mature on dates ranging from April 2022 to March 2034.

Financial Statement Presentation

Realized derivative gains and losses are recorded in interest, net, in the Company's Consolidated Statements of Income. Although subject to master netting arrangements, the Company does not offset derivative assets and liabilities in its Consolidated Balance Sheets. Derivatives with an unrealized gain are recorded in the Company's Consolidated Balance Sheets as either current or non-current assets, based on maturity date, and derivatives with an unrealized loss are recorded as either current or non-current liabilities, based on maturity date. Refer to Note 7 for the net presentation of the Company's derivatives. Additionally, the Company records cash collateral received as amounts due to the counterparties exclusive of any derivative asset and records cash collateral it posts with counterparties as amounts receivable from those counterparties exclusive of any derivative liability.

Income Taxes

Income taxes are accounted for under the balance sheet method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases ("temporary differences"). Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rate is recognized in income in the period that includes the enactment date.

Deferred tax assets are evaluated for future realization and reduced by a valuation allowance to the extent that a portion is not more likely than not to be realized. Many factors are considered when assessing whether it is more likely than not that the deferred tax assets will be realized, including recent cumulative earnings, expectations of future taxable income, carryforward periods, and other relevant quantitative and qualitative factors. The recoverability of the deferred tax assets is evaluated by assessing the adequacy of future expected taxable income from all sources, including reversal of taxable temporary differences, forecasted operating earnings and available tax planning strategies. These sources of income rely heavily on estimates.

The Tax Cuts and Jobs Act contains a provision which subjects a US parent of a foreign subsidiary to current US tax on its global intangible low–taxed income (“GILTI”). The GILTI income is eligible for a deduction, which lowers the effective tax rate to 10.5% for calendar years 2018 through 2025 and 13.125% after 2025. The Company will report the tax impact of GILTI as a period cost when incurred. Accordingly, the Company is not providing deferred taxes for basis differences expected to reverse as GILTI.

In determining the provision for income taxes, an annual effective income tax rate is used based on annual income, permanent differences between book and tax income, and statutory income tax rates. Discrete events such as audit settlements or changes in tax laws are recognized in the period in which they occur.

The Company records a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return. The Company records interest and penalties related to unrecognized tax benefits in interest expense and operating, selling, general and administrative expenses, respectively, in the Company's Consolidated Statements of Income. Refer to Note 9 for additional income tax disclosures.

In February 2018, the FASB issued ASU 2018-02, Income Statement–Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ("ASU 2018-02"). This ASU provides that the stranded tax effects from the Tax Cuts and Jobs Act of 2017 ("Tax Act") in accumulated other comprehensive loss may be reclassified to retained earnings. The Company adopted this ASU on February 1, 2018, which resulted in an immaterial negative adjustment to retained earnings.

Revenue Recognition

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The Company adopted this ASU on February 1, 2018, using the modified retrospective approach and applied this ASU only to contracts not completed as of February 1, 2018. The accounting policies and other disclosures are below as well as the disclosure of disaggregated revenues in Note 15. The impact of adopting this ASU was not material to the Consolidated Financial Statements.

Net Sales

The Company recognizes sales revenue, net of sales taxes and estimated sales returns, at the time it sells merchandise to the customer. eCommerce sales include shipping revenue and are recorded upon delivery to the customer. Additionally, estimated sales returns are calculated based on expected returns.

Membership Fee Revenue

The Company recognizes membership fee revenue both in the U.S. and internationally over the term of the membership, which is typically 12 months. Membership fee revenue was $1.4 billion for each of fiscal 2019, 2018 and 2017, respectively. Membership fee revenue is included in membership and other income in the Company's Consolidated Statements of Income. Deferred membership fee is included in accrued liabilities in the Company's Consolidated Balance Sheets.

Gift Cards

Customer purchases of gift cards are not recognized as sales until the card is redeemed and the customer purchases merchandise using the gift card. Gift cards in the U.S. and some countries do not carry an expiration date; therefore, customers and members can redeem their gift cards for merchandise and services indefinitely. Gift cards in some countries where the Company does business have expiration dates. While gift cards are generally redeemed within 12 months, a certain number of gift cards, both with and without expiration dates, will not be fully redeemed. Management estimates unredeemed balances and recognizes revenue for these amounts in membership and other income in the Company's Consolidated Statements of Income over the expected redemption period. Management periodically reviews and updates its estimates.

Financial and Other Services

The Company recognizes revenue from service transactions at the time the service is performed. Generally, revenue from services is classified as a component of net sales in the Company's Condensed Consolidated Statements of Income.

Contract Balances

Contract balances as a result of transactions with customers primarily consist of receivables included in receivables, net, and deferred gift card revenue included in accrued liabilities in the Company's Condensed Consolidated Balance Sheets. The following table provides the Company's receivables and deferred gift card revenue from transactions with customers:



(Amounts in millions)	As of January 31, 2019
Assets:
Receivables from transactions with customers, net	$	2,538

Liabilities:
Deferred gift card revenue	$	1,932

Cost of Sales

Cost of sales includes actual product cost, the cost of transportation to the Company's distribution facilities, stores and clubs from suppliers, the cost of transportation from the Company's distribution facilities to the stores, clubs and customers and the cost of warehousing for the Sam's Club segment and import distribution centers. Cost of sales is reduced by supplier payments that are not a reimbursement of specific, incremental and identifiable costs.

Payments from Suppliers

The Company receives consideration from suppliers for various programs, primarily volume incentives, warehouse allowances and reimbursements for specific programs such as markdowns, margin protection, advertising and supplier-specific fixtures. Payments from suppliers are accounted for as a reduction of cost of sales, except in certain limited situations when the payment is a reimbursement of specific, incremental and identifiable costs, and are recognized in the Company's Consolidated Statements of Income when the related inventory is sold.

Operating, Selling, General and Administrative Expenses

Operating, selling, general and administrative expenses include all operating costs of the Company, except cost of sales, as described above. As a result, the majority of the cost of warehousing and occupancy for the Walmart U.S. and Walmart International segments' distribution facilities is included in operating, selling, general and administrative expenses. Because the Company only includes a portion of the cost of its Walmart U.S. and Walmart International segments' distribution facilities in cost of sales, its gross profit and gross profit as a percentage of net sales may not be comparable to those of other retailers that may include all costs related to their distribution facilities in cost of sales and in the calculation of gross profit.

Advertising Costs

Advertising costs are expensed as incurred, consist primarily of print, television and digital advertisements and are recorded in operating, selling, general and administrative expenses in the Company's Consolidated Statements of Income. In certain limited situations, reimbursements from suppliers that are for specific, incremental and identifiable advertising costs are recognized as a reduction of advertising costs in operating, selling, general and administrative expenses. Advertising costs were $3.5 billion, $3.1 billion and $2.9 billion for fiscal 2019, 2018 and 2017, respectively.

Currency Translation

The assets and liabilities of all international subsidiaries are translated from the respective local currency to the U.S. dollar using exchange rates at the balance sheet date. Related translation adjustments are recorded as a component of accumulated other comprehensive loss. The Company's Consolidated Statements of Income of all international subsidiaries are translated from the respective local currencies to the U.S. dollar using average exchange rates for the period covered by the income statements.

Recent Accounting Pronouncements

Leases

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lease assets and liabilities to be recorded on the balance sheet. Certain qualitative and quantitative disclosures are also required. The Company will adopt this ASU and related amendments as of the beginning of the first quarter of the year ending January 31, 2020 ("fiscal 2020") and will be electing certain practical expedients permitted under the transition guidance, including to retain the historical lease classification as well as relief from reviewing expired or existing contracts to determine if they contain leases. The Company will be exempting leases with an initial term of twelve months or less from balance sheet recognition and, for most classes of assets, the Company will be combining non-lease components with lease components. Management has implemented and continues to implement new lease systems in connection with the adoption.

The adoption of this ASU and related amendments will result in total assets and liabilities increasing approximately $15 billion, which is primarily due to recognizing approximately $17.5 billion of operating lease assets and liabilities, partially offset by derecognizing approximately $3 billion of assets and liabilities related to financial obligations connected with the construction of leased stores. Several other line items in the Company’s Consolidated Balance Sheet will also be impacted by immaterial amounts. The Company’s Consolidated Statements of Income and Consolidated Statements of Cash Flows will not be materially impacted. Finally, management expects the first quarter fiscal 2020 disclosure of future operating commitments to significantly increase compared to the aggregate minimum rentals disclosed in Note 11, primarily because the new standard requires reasonably assured renewals be included.

Financial Instruments

In June 2016, the FASB issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326), which modifies the measurement of expected credit losses of certain financial instruments. The Company will adopt this ASU on February 1, 2020. Management is currently evaluating this ASU to determine its impact to the Company's consolidated financial statements.

Net Income Per Common Share

12 Months Ended

Jan. 31, 2019

Earnings Per Share [Abstract]

Net income per common share

Net Income Per Common Share

Basic net income per common share attributable to Walmart is based on the weighted-average common shares outstanding during the relevant period. Diluted net income per common share attributable to Walmart is based on the weighted-average common shares outstanding during the relevant period adjusted for the dilutive effect of share-based awards. The Company did not have significant share-based awards outstanding that were antidilutive and not included in the calculation of diluted net income per common share attributable to Walmart for fiscal 2019, 2018 and 2017.

The following table provides a reconciliation of the numerators and denominators used to determine basic and diluted net income per common share attributable to Walmart:



	Fiscal Years Ended January 31,
(Amounts in millions, except per share data)	2019			2018			2017
Numerator
Consolidated net income	$	7,179		$	10,523		$	14,293
Consolidated net income attributable to noncontrolling interest	(509		)	(661		)	(650		)
Consolidated net income attributable to Walmart	$	6,670		$	9,862		$	13,643

Denominator
Weighted-average common shares outstanding, basic	2,929			2,995			3,101
Dilutive impact of stock options and other share-based awards	16			15			11
Weighted-average common shares outstanding, diluted	2,945			3,010			3,112

Net income per common share attributable to Walmart
Basic	$	2.28		$	3.29		$	4.40
Diluted	2.26			3.28			4.38

Shareholders' Equity

12 Months Ended

Jan. 31, 2019

Share-based Compensation [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

Shareholders' Equity

The total authorized shares of $0.10 par value common stock is 11.0 billion, of which 2.9 billion and 3.0 billion were issued and outstanding as of January 31, 2019 and 2018, respectively.

Share-Based Compensation

The Company has awarded share-based compensation to associates and nonemployee directors of the Company. The compensation expense recognized for all stock incentive plans, including expense associated with plans of the Company's consolidated subsidiaries granted in the subsidiaries' respective stock, was $773 million, $626 million and $596 million for fiscal 2019, 2018 and 2017, respectively. Share-based compensation expense is generally included in operating, selling, general and administrative expenses in the Company's Consolidated Statements of Income. The total income tax benefit recognized for share-based compensation was $181 million, $150 million and $212 million for fiscal 2019, 2018 and 2017, respectively. The following table summarizes the Company's share-based compensation expense by award type for all plans:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Restricted stock and performance share units	$	293	$	234	$	237
Restricted stock units	456		368		332
Other	24		24		27
Share-based compensation expense	$	773	$	626	$	596

The Walmart Inc. Stock Incentive Plan of 2015 (the "Plan"), as amended and restated effective February 23, 2016, as amended further as of February 1, 2017, and as renamed on February 1, 2018, was established to grant stock options, restricted (non-vested) stock, performance share units and other equity compensation awards for which 260 million shares of Walmart common stock issued or to be issued under the Plan have been registered under the Securities Act of 1933, as amended. The Company believes that such awards serve to align the interests of its associates with those of its shareholders.

The Plan's award types are summarized as follows:

•

Restricted Stock and Performance Share Units. Restricted stock awards are for shares that vest based on the passage of time and include restrictions related to employment. Performance share units vest based on the passage of time and achievement of performance criteria and may range from 0% to 150% of the original award amount. Vesting periods for these awards are generally between one and three years. Restricted stock and performance share units may be settled or deferred in stock and are accounted for as equity in the Company's Consolidated Balance Sheets. The fair value of restricted stock awards is determined on the date of grant and is expensed ratably over the vesting period. The fair value of performance share units is determined on the date of grant using the Company's stock price discounted for the expected dividend yield through the vesting period and is recognized over the vesting period. The weighted-average discount for the dividend yield used to determine the fair value of performance share units in fiscal 2019, 2018 and 2017 was 6.2%, 7.2% and 8.3%, respectively.

•

Restricted Stock Units. Restricted stock units provide rights to Company stock after a specified service period; generally 50% vest three years from the grant date and the remaining 50% vest five years from the grant date. The fair value of each restricted stock unit is determined on the date of grant using the stock price discounted for the expected dividend yield through the vesting period and is recognized ratably over the vesting period. The expected dividend yield is based on the anticipated dividends over the vesting period. The weighted-average discount for the dividend yield used to determine the fair value of restricted stock units granted in fiscal 2019, 2018 and 2017 was 7.2%, 9.0% and 9.0%, respectively.

In addition to the Plan, the Company's United Kingdom subsidiary has stock option plans for certain colleagues which generally vest over three years. The stock option share-based compensation expense is included in the Other line in the table above.

Flipkart also maintains a stock option plan primarily for the benefit of employees and nonemployee directors under which options to acquire Flipkart common shares may be issued. The grants have no exercise price and no compensation expense was recognized during fiscal 2019 due to a liquidity event performance condition that was not deemed probable of occurrence.

The following table shows the activity for restricted stock and performance share units and restricted stock units during fiscal 2019:



	Restricted Stock and Performance Share Units⁽¹⁾				Restricted Stock Units
(Shares in thousands)	Shares		Weighted-Average Grant-Date Fair Value Per Share		Shares		Weighted-Average Grant-Date Fair Value Per Share
Outstanding as of February 1, 2018	8,558		$	70.47	24,153		$	66.69
Granted	3,600		84.94		7,946		80.94
Vested/exercised	(2,448	)	74.67		(5,524	)	69.52
Forfeited	(911	)	68.24		(2,620	)	69.74
Outstanding as of January 31, 2019	8,799		$	75.39	23,955		$	70.47


(1)	Assumes payout rate at 100% for Performance Share Units.

The following table includes additional information related to restricted stock and performance share units and restricted stock units:



	Fiscal Years Ended January 31,
(Amounts in millions, except years)	2019		2018		2017
Fair value of restricted stock and performance share units vested	$	183	$	181	$	149
Fair value of restricted stock units vested	386		344		261
Unrecognized compensation cost for restricted stock and performance share units	362		291		211
Unrecognized compensation cost for restricted stock units	1,002		972		986
Weighted average remaining period to expense for restricted stock and performance share units (years)	1.1		1.2		1.3
Weighted average remaining period to expense for restricted stock units (years)	1.6		1.8		1.9

Share Repurchase Program

From time to time, the Company repurchases shares of its common stock under share repurchase programs authorized by the Company's Board of Directors. All repurchases made during fiscal year 2019 were made under the current $20.0 billion share repurchase program approved in October 2017, which has no expiration date or other restrictions limiting the period over which the Company can make share repurchases. As of January 31, 2019, authorization for $11.3 billion of share repurchases remained under the share repurchase program. Any repurchased shares are constructively retired and returned to an unissued status.

The Company regularly reviews share repurchase activity and considers several factors in determining when to execute share repurchases, including, among other things, current cash needs, capacity for leverage, cost of borrowings, results of operations and the market price of the Company's common stock. The following table provides, on a settlement date basis, the number of shares repurchased, average price paid per share and total amount paid for share repurchases for fiscal 2019, 2018 and 2017:



	Fiscal Years Ended January 31,
(Amounts in millions, except per share data)	2019		2018		2017
Total number of shares repurchased	79.5		104.9		119.9
Average price paid per share	$	93.18	$	79.11	$	69.18
Total cash paid for share repurchases	$	7,410	$	8,296	$	8,298

Accumulated Other Comprehensive Loss

12 Months Ended

Jan. 31, 2019

Other Comprehensive Income (Loss), Tax [Abstract]

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Loss

The following table provides the changes in the composition of total accumulated other comprehensive loss for fiscal 2019, 2018 and 2017:



(Amounts in millions and net of income taxes)	Currency Translation and Other			Net Investment Hedges			Unrealized Gain on Available-for-Sale Securities			Cash Flow Hedges			Minimum Pension Liability			Total
Balances as of February 1, 2016	$	(11,690	)	$	1,022		$	—		$	(336	)	$	(593	)	$	(11,597	)
Other comprehensive income (loss) before reclassifications, net	(2,817		)	413			145			(22		)	(389		)	(2,670		)
Amounts reclassified from accumulated other comprehensive loss, net	—			—			—			43			(8		)	35
Balances as of January 31, 2017	(14,507		)	1,435			145			(315		)	(990		)	(14,232		)
Other comprehensive income (loss) before reclassifications, net	2,345			(405		)	1,501			436			83			3,960
Amounts reclassified from accumulated other comprehensive loss, net	26			—			—			1			64			91
Balances as of January 31, 2018	(12,136		)	1,030			1,646			122			(843		)	(10,181		)
Adoption of new accounting standards on February 1, 2018⁽¹⁾	89			93			(1,646		)	28			—			(1,436		)
Other comprehensive income (loss) before reclassifications, net	(2,093		)	272			—			(339		)	93			(2,067		)
Reclassifications to income, net⁽²⁾	2,055			—			—			49			38			2,142
Balances as of January 31, 2019	$	(12,085	)	$	1,395		$	—		$	(140	)	$	(712	)	$	(11,542	)

(1) Primarily relates to the adoption of ASU 2016-01 and ASU 2018-02.

(2) Includes a cumulative foreign currency translation loss of $2.0 billion, for which there was no related income taxes, upon sale of the majority stake in Walmart Brazil (see Note 13).

The income tax impact for each of the amounts shown in the table above is immaterial. Amounts reclassified from accumulated other comprehensive loss for derivatives are recorded in interest, net, in the Company's Consolidated Statements of Income, and the amounts for the minimum pension liability, as well as the cumulative translation resulting from the disposition of a business, are recorded in other gains and losses in the Company's Consolidated Statements of Income.

Accrued Liabilities

12 Months Ended

Jan. 31, 2019

Accrued Liabilities [Abstract]

Accounts payable and accrued liabilities disclosure

Accrued Liabilities

The Company's accrued liabilities consist of the following as of January 31, 2019 and 2018:



	January 31,
(Amounts in millions)	2019		2018
Accrued wages and benefits⁽¹⁾	$	6,504	$	6,998
Self-insurance⁽²⁾	3,979		3,737
Accrued non-income taxes⁽³⁾	2,979		3,073
Deferred gift card revenue	1,932		2,017
Other⁽⁴⁾	6,765		6,297
Total accrued liabilities	$	22,159	$	22,122


(1)	Accrued wages and benefits include accrued wages, salaries, vacation, bonuses and other incentive plans.


(2)	Self-insurance consists of insurance-related liabilities, such as workers' compensation, general liability, auto liability, product liability and certain employee-related healthcare benefits.


(3)	Accrued non-income taxes include accrued payroll, value added, sales and miscellaneous other taxes.


(4)	Other accrued liabilities consist of various items such as maintenance, utilities, advertising, interest and legal contingencies.

Short-term Borrowings and Long-term Debt

12 Months Ended

Jan. 31, 2019

Long-term Debt, Unclassified [Abstract]

Short-term Borrowings and Long-term debt

Short-term Borrowings and Long-term Debt

Short-term borrowings consist of commercial paper and lines of credit. Short-term borrowings as of January 31, 2019 and 2018 were $5.2 billion and $5.3 billion, respectively, with weighted-average interest rates of 2.7% and 1.5%, respectively.

The Company has various committed lines of credit in the U.S., committed with 22 financial institutions, totaling $15.0 billion and $12.5 billion as of January 31, 2019 and 2018, respectively. These committed lines of credit are summarized in the following table:



	January 31, 2019						January 31, 2018
(Amounts in millions)	Available		Drawn		Undrawn		Available		Drawn		Undrawn
Five-year credit facility⁽¹⁾	$	5,000	$	—	$	5,000	$	5,000	$	—	$	5,000
364-day revolving credit facility⁽¹⁾	10,000		—		10,000		7,500		—		7,500
Total	$	15,000	$	—	$	15,000	$	12,500	$	—	$	12,500


(1)	In May 2018, the Company renewed and extended its existing five-year credit facility and its existing 364-day revolving credit facility, both of which are used to support its commercial paper program.

The committed lines of credit in the table above mature at various times between May 2019 and May 2023, carry interest rates generally ranging between LIBOR plus 10 basis points and LIBOR plus 75 basis points, and incur commitment fees ranging between 1.5 and 4.0 basis points. In conjunction with the committed lines of credit listed in the table above, the Company has agreed to observe certain covenants, the most restrictive of which relates to the maximum amount of secured debt. Additionally, the Company also maintains other committed lines of credit outside of the U.S., with available amounts of approximately $3.0 billion and $4.0 billion as of January 31, 2019 and 2018, respectively, of which approximately $0.2 billion and no amount was drawn as of January 31, 2019 and 2018, respectively.

Apart from the committed lines of credit, the Company has syndicated and fronted letters of credit available totaling $1.8 billion as of January 31, 2019 and 2018, of which $1.6 billion and $1.5 billion was drawn as of January 31, 2019 and 2018, respectively. The Company also has trade letters of credit, without stated limits, of which $0.4 billion was drawn as of January 31, 2019 and 2018.

The Company's long-term debt, which includes the fair value instruments further discussed in Note 8, consists of the following as of January 31, 2019 and 2018:



		January 31, 2019				January 31, 2018
(Amounts in millions)	Maturity Dates By Fiscal Year	Amount			Average Rate⁽¹⁾	Amount			Average Rate⁽¹⁾
Unsecured debt
Fixed	2020 - 2049	$	35,816		3.9%	$	24,540		3.9%
Variable	2020 - 2022	1,800			2.9%	800			4.1%
Total U.S. dollar denominated		37,616				25,340
Fixed	2023 - 2030	2,870			3.3%	3,101			3.3%
Variable		—				—
Total Euro denominated		2,870				3,101
Fixed	2031 - 2039	3,524			5.4%	3,801			5.4%
Variable		—				—
Total Sterling denominated		3,524				3,801
Fixed	2021 - 2028	1,651			0.4%	1,655			0.4%
Variable		—				—
Total Yen denominated		1,651				1,655
Total unsecured debt		45,661				33,897
Total other⁽²⁾		(265		)		(114		)
Total debt		45,396				33,783
Less amounts due within one year		(1,876		)		(3,738		)
Long-term debt		$	43,520			$	30,045


(1)	The average rate represents the weighted-average stated rate for each corresponding debt category, based on year-end balances and year-end interest rates. Interest costs are also impacted by certain derivatives described in Note 8.


(2)	Includes deferred loan costs, discounts, fair value hedges, foreign-held debt and secured debt. As of January 31, 2019 and 2018 the Company had secured debt in the amount of $8 million and $10 million, respectively, which was collateralized by property that had an aggregate carrying amount of $82 million and $101 million, respectively.

As of January 31, 2018, the Company had $500 million in debt with embedded put options. These bonds matured in June 2018, and were fully repaid. The issuance of money market puttable reset securities in the amount of $500 million is structured to be remarketed in connection with the annual reset of the interest rate. If, for any reason, the remarketing of the notes does not occur at the time of any interest rate reset, the holders of the notes must sell and the Company must repurchase the notes at par. Accordingly as of January 31, 2018, this issuance was classified as long-term debt due within one year in the Company's Consolidated Balance Sheets.

Annual maturities of long-term debt during the next five years and thereafter are as follows:



(Amounts in millions)	Annual
Fiscal Year	Maturities
2020	$	1,876
2021	5,347
2022	3,080
2023	2,844
2024	4,595
Thereafter	27,654
Total	$	45,396

Debt Issuances

Information on long-term debt issued during fiscal 2019 to fund a portion of the purchase price for the Flipkart acquisition discussed in Note 13 and for general corporate purposes, is as follows:

(Amounts in millions)

Issue Date

Principal Amount

Maturity Date

Fixed vs. Floating

Interest Rate

Net Proceeds

June 27, 2018

750 USD

June 23, 2020

Floating

$

748

June 27, 2018

1,250 USD

June 23, 2020

Fixed

2.850%

1,247

June 27, 2018

750 USD

June 23, 2021

Floating

748

June 27, 2018

1,750 USD

June 23, 2021

Fixed

3.125%

1,745

June 27, 2018

2,750 USD

June 26, 2023

Fixed

3.400%

2,740

June 27, 2018

1,500 USD

June 26, 2025

Fixed

3.550%

1,490

June 27, 2018

2,750 USD

June 26, 2028

Fixed

3.700%

2,725

June 27, 2018

1,500 USD

June 28, 2038

Fixed

3.950%

1,473

June 27, 2018

3,000 USD

June 29, 2048

Fixed

4.050%

2,935

Various

21 USD

Various

21

Total

$

15,872

The June 2018 issuances are senior, unsecured notes which rank equally with all other senior, unsecured debt obligations of the Company, and are not convertible or exchangeable. These issuances do not contain any financial covenants and do not restrict the Company's ability to pay dividends or repurchase company stock.

During fiscal 2018, significant long-term debt issuances were as follows:

(Amounts in millions)

Issue Date

Principal Amount

Maturity Date

Fixed vs. Floating

Interest Rate

Net Proceeds

July 18, 2017

70,000 JPY

July 15, 2022

Fixed

0.183%

$

619

July 18, 2017

40,000 JPY

July 18, 2024

Fixed

0.298%

354

July 18, 2017

60,000 JPY

July 16, 2027

Fixed

0.520%

530

October 20, 2017

300 USD

October 9, 2019

Floating

299

October 20, 2017

1,200 USD

October 9, 2019

Fixed

1.750%

1,198

October 20, 2017

1,250 USD

December 15, 2020

Fixed

1.900%

1,245

October 20, 2017

1,250 USD

December 15, 2022

Fixed

2.350%

1,245

October 20, 2017

1,000 USD

December 15, 2024

Fixed

2.650%

996

October 20, 2017

1,000 USD

December 15, 2047

Fixed

3.625%

990

Total

$

7,476

As described in Note 8, the prior year issuances of foreign-currency-denominated long-term debt are designated as a hedge of the Company's net investment in Japan.

Repayments and Extinguishments

The following table provides details of debt repayments during fiscal 2019:



(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment
February 15, 2018	1,250 USD	Fixed	5.800%	$	1,250
April 11, 2018	1,250 USD	Fixed	1.125%	1,250
June 1, 2018	500 USD	Floating	Floating	500
December 15, 2018	724 USD	Fixed	1.950%	724
Various⁽¹⁾	60 USD	Various	Various	60
Total				$	3,784

(1) Includes repayments of smaller long-term debt as it matured in several non-U.S. operations.

During fiscal 2018, the following long-term debt matured and was repaid:



(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment ⁽²⁾
April 5, 2017	1,000 USD	Fixed	5.375%	$	1,000
April 21, 2017	500 USD	Fixed	1.000%	500
Various⁽¹⁾	289 USD	Various	Various	289
Total repayment of matured debt				1,789

December 15, 2018	1,000 USD	Fixed	1.950%	$	276
February 1, 2019	500 USD	Fixed	4.125%	136
July 8, 2020	1,500 USD	Fixed	3.625%	661
October 25, 2020	1,750 USD	Fixed	3.250%	553
April 15, 2021	1,000 USD	Fixed	4.250%	491
October 16, 2023	250 USD	Fixed	6.750%	98
April 5, 2027	750 USD	Fixed	5.875%	267
February 15, 2030	500 USD	Fixed	7.550%	412
September 4, 2035	2,500 USD	Fixed	5.250%	532
September 28, 2035	1,000 GBP	Fixed	5.250%	260
August 17, 2037	3,000 USD	Fixed	6.500%	1,700
April 15, 2038	2,000 USD	Fixed	6.200%	1,081
January 19, 2039	1,000 GBP	Fixed	4.875%	851
April 2, 2040	1,250 USD	Fixed	5.625%	499
July 9, 2040	750 USD	Fixed	4.875%	372
October 25, 2040	1,250 USD	Fixed	5.000%	731
April 15, 2041	2,000 USD	Fixed	5.625%	1,082
April 11, 2043	1,000 USD	Fixed	4.000%	291
October 2, 2043	750 USD	Fixed	4.750%	481
April 22, 2044	1,000 USD	Fixed	4.300%	498
Total repayment of extinguished debt				11,272
Total				$	13,061

(1) Includes repayments of smaller long-term debt as it matured in several non-U.S. operations.

(2) Represents portion of the principal amount repaid during fiscal 2018.

In fiscal 2018, in connection with extinguishing debt, the Company paid premiums of approximately $3.1 billion which resulted in a loss on extinguishment of debt of approximately $3.1 billion.

Fair Value Measurements

12 Months Ended

Jan. 31, 2019

Fair Value Disclosures [Abstract]

Fair value measurements

Fair Value Measurements

Assets and liabilities recorded at fair value are measured using the fair value hierarchy, which prioritizes the inputs used in measuring fair value. The levels of the fair value hierarchy are:


•	Level 1: observable inputs such as quoted prices in active markets;


•	Level 2: inputs other than quoted prices in active markets that are either directly or indirectly observable; and


•	Level 3: unobservable inputs for which little or no market data exists, therefore requiring the Company to develop its own assumptions.

The Company measures the fair value of equity investments (primarily its investment in JD) on a recurring basis and records them in other long-term assets in the accompanying Consolidated Balance Sheets. Measurement details about the Company's two portions of the investment in JD are as follows:


•	The purchased portion of the investment in JD measured using Level 1 inputs, which prior to fiscal 2019 was classified as available-for-sale with changes in fair value recognized through other comprehensive income; and


•	The portion of the investment in JD received in exchange for selling certain assets related to Yihaodian, the Company's former eCommerce operation in China, measured using Level 2 inputs. Fair value is determined primarily using quoted prices in active markets for similar assets. Prior to fiscal 2019, the investment was carried at cost.

Information for the cost basis, carrying value and fair value of the Company's investment in JD is as follows:



(Amounts in millions)	Cost Basis		Carrying Value as of January 31, 2018		Fair Value as of February 1, 2018			Fair Value as of January 31, 2019
Investment in JD measured using Level 1 inputs	$	1,901	$	3,547	$	3,547	⁽¹⁾	$	1,791
Investment in JD measured using Level 2 inputs	1,490		1,490		3,559		⁽²⁾	1,792
Total	$	3,391	$	5,037	$	7,106		$	3,583	⁽³⁾

(1) Fair value was already recognized on the balance sheet. Upon adoption of the new financial instrument standard on February 1, 2018, the excess of fair value over cost was reclassified from accumulated other comprehensive loss to retained earnings.

(2) Upon adoption of the new financial instrument standard on February 1, 2018, the excess of fair value over cost was recognized by increasing the carrying value of the asset and retained earnings.

(3) The decreases in fair value from February 1, 2018 to January 31, 2019 of $3.5 billion was recognized in net income and included in other gains and losses in the Company's Consolidated Statements of Income.

The Company also has derivatives. Derivative fair values are the estimated amounts the Company would receive or pay upon termination of the related derivative agreements as of the reporting dates. The fair values have been measured using the income approach and Level 2 inputs, which include the relevant interest rate and foreign currency forward curves. As of January 31, 2019 and January 31, 2018, the notional amounts and fair values of these derivatives were as follows:



	January 31, 2019					January 31, 2018
(Amounts in millions)	Notional Amount		Fair Value			Notional Amount		Fair Value
Receive fixed-rate, pay variable-rate interest rate swaps designated as fair value hedges	$	4,000	$	(78	)	$	4,000	$	(91	)
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as net investment hedges	2,250		334			2,250		208
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as cash flow hedges	4,173		(272		)	4,523		205
Total	$	10,423	$	(16	)	$	10,773	$	322

Nonrecurring Fair Value Measurements

In addition to assets and liabilities that are recorded at fair value on a recurring basis, the Company's assets and liabilities are also subject to nonrecurring fair value measurements. Generally, assets are recorded at fair value on a nonrecurring basis as a result of impairment charges.

As discussed in Note 13, the Company sold the majority stake in Walmart Brazil during fiscal 2019. The assets of the disposal group totaled $3.3 billion and were comprised of $1.0 billion in current assets, $1.6 billion in property and equipment and property under capital lease and financing obligations, net, and $0.7 billion of other long-term assets. When measured as held for sale, these assets were fully impaired as the carrying value of the disposal group exceeded the fair value, less costs to sell and contributed to a pre-tax net loss of $4.8 billion in the Walmart International segment, which was recorded in other gains and losses in the Company's Consolidated Statement of Income. Other impairment charges to assets measured at fair value on a nonrecurring basis during fiscal 2019 were immaterial.

For the fiscal year ended January 31, 2018, the Company recorded impairment charges related to assets measured at fair value on a non-recurring basis of approximately $1.4 billion primarily related to the following:


•	in the Sam's Club segment as discussed in Note 14, $0.6 billion for restructuring charges for closures of underperforming clubs; the impaired assets consisted primarily of buildings and related store fixtures, and leased assets of its retail operations;


•	in the Walmart International segment as discussed in Note 14, $0.2 billion for restructuring charges for the wind-down of the Brazil first-party eCommerce business; the impaired assets consisted primarily of fixtures and equipment; and


•	immaterial discontinued real estate projects in the Walmart U.S. and Sam's Club segments and decisions to exit certain international properties in the Walmart International segment.

These impairment charges were classified in operating, selling, general and administrative expenses in the Company's Consolidated Statements of Income. The fair value was determined based on comparable market values of similar properties or on a rental income approach, using Level 2 inputs. Impairment charges not related to restructuring or decisions to exit properties for fiscal 2018 were not material.

Other Fair Value Disclosures

The Company records cash and cash equivalents, restricted cash and short-term borrowings at cost. The carrying values of these instruments approximate their fair value due to their short-term maturities.

The Company's long-term debt is also recorded at cost. The fair value is estimated using Level 2 inputs based on the Company's current incremental borrowing rate for similar types of borrowing arrangements. The carrying value and fair value of the Company's long-term debt as of January 31, 2019 and 2018, are as follows:



	January 31, 2019				January 31, 2018
(Amounts in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt, including amounts due within one year	$	45,396	$	49,570	$	33,783	$	38,766

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Derivatives

12 Months Ended

Jan. 31, 2019

Summary of Derivative Instruments [Abstract]

Derivative financial instruments

Derivatives

In connection with various derivative agreements, including master netting arrangements, the Company held cash collateral from counterparties of $220 million and $279 million as of January 31, 2019 and January 31, 2018, respectively. Furthermore, as part of the master netting arrangements with each of these counterparties, the Company is also required to post collateral with a counterparty if the Company's net derivative liability position exceeds $150 million with such counterparties. The Company did not have any cash collateral posted with counterparties as of January 31, 2019 and January 31, 2018, respectively.

As of January 31, 2019 and January 31, 2018, the Company had ¥180 billion of outstanding long-term debt designated as a hedge of its net investment in Japan, as well as outstanding long-term debt of £1.7 billion as of January 31, 2019 and January 31, 2018 that was designated as a hedge of its net investment in the United Kingdom. These nonderivative net investment hedges will mature on dates ranging from July 2020 to January 2039.

The Company's derivatives, as well as its nonderivative debt instruments designated and qualifying as net investment hedges, were classified as follows as of January 31, 2019 and 2018 in the Company's Consolidated Balance Sheets:



	January 31, 2019						January 31, 2018
(Amounts in millions)	Fair Value Hedges		Net Investment Hedges		Cash Flow Hedges		Fair Value Hedges		Net Investment Hedges		Cash Flow Hedges
Derivatives
Derivative assets:
Other long-term assets	$	—	$	334	$	78	$	—	$	208	$	300

Derivative liabilities:
Deferred income taxes and other	78		—		350		91		—		95

Nonderivative hedging instruments
Long-term debt	—		3,863		—		—		4,041		—

Amounts related to the Company's derivatives expected to be reclassified from accumulated other comprehensive loss to net income during the next 12 months are not significant.

Taxes

12 Months Ended

Jan. 31, 2019

Income Tax Disclosure [Abstract]

Income tax disclosure

Taxes

The components of income before income taxes are as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018	2017
U.S.	15,875		10,722	15,680
Non-U.S.	(4,415	)	4,401	4,817
Total income before income taxes	11,460		15,123	20,497

A summary of the provision for income taxes is as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019			2018			2017
Current:
U.S. federal	$	2,763		$	2,998		$	3,454
U.S. state and local	493			405			495
International	1,495			1,377			1,510
Total current tax provision	4,751			4,780			5,459
Deferred:
U.S. federal	(361		)	(22		)	1,054
U.S. state and local	(16		)	(12		)	51
International	(93		)	(146		)	(360		)
Total deferred tax expense (benefit)	(470		)	(180		)	745
Total provision for income taxes	$	4,281		$	4,600		$	6,204

In December 2017, the Tax Act was enacted and significantly changed U.S. income tax law. Beginning January 2018, the Tax Act reduced the U.S. statutory tax rate and created new taxes focused on foreign-sourced earnings and related-party payments, including the creation of the base erosion anti-abuse tax and a new tax on global intangible low-taxed income ("GILTI"). In addition, the Company was subject to a one-time transition tax in fiscal 2018 on accumulated foreign subsidiary earnings not previously subject to U.S. income tax.

The SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act ("SAB 118"), which allowed companies to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. Due to the timing of the enactment and the complexity involved in applying the provisions of the Tax Act, the Company made reasonable estimates of the effects and recorded provisional amounts in its financial statements as of January 31, 2018, in accordance with SAB 118. The Company elected to apply the measurement period provisions of this guidance to certain income tax effects of the Tax Act when it became effective. The provisional measurement period ended in the fourth quarter of fiscal 2019. While management believes the Company's accounting for Tax Reform is complete, it is based on prevailing regulations and currently available information, and any additional guidance issued by the IRS could impact the aforementioned amounts in future periods. The net tax benefit recognized in fiscal 2018 related to the Tax Act was $207 million, and in fiscal 2019, the Company recorded $442 million of additional tax expense related to the Tax Act, included as a component of provision for income taxes .

One-time Transition Tax

The Tax Act required the Company to pay U.S. income taxes on accumulated foreign subsidiary earnings not previously subject to U.S. income tax at a rate of 15.5% to the extent of foreign cash and certain other net current assets, as defined by the Tax Act, and 8.0% on the remaining earnings. In fiscal 2018, the Company recorded a provisional amount of $1.9 billion of additional income tax expense for its one-time transitional tax liability. The Company finalized the calculations of the Transition Tax liability and increased the provisional amount by $413 million, with the increase included as a component of provision for income taxes in fiscal 2019.

Deferred Tax Effects

The Tax Act reduced the U.S. statutory tax rate from 35.0% to 21.0%, beginning January 2018. Accordingly, the Company re-measured its deferred taxes as of January 31, 2018, to reflect the reduced rate that will apply in future periods when these deferred taxes are settled or realized. In fiscal 2018, the Company recognized a deferred tax benefit of $2.1 billion to reflect the reduced U.S. tax rate and other effects of the Tax Act. In fiscal 2018, the Company made no provisional adjustment with respect to the GILTI provision of the Tax Act. Upon finalizing the provisional accounting for the remeasurement of U.S. deferred tax assets and liabilities in fiscal 2019, the Company recorded an additional tax benefit of $75 million, which is included as a component of provision for income taxes.

Effective Income Tax Rate Reconciliation

In the past, the Company's effective income tax rate was typically lower than the U.S. statutory tax rate primarily because of benefits from lower–taxed global operations, including the use of global funding structures and certain U.S. tax credits as further discussed in the "Cash and Cash Equivalents" section of Note 1. However, beginning January 2018, the US statutory rate of 21.0% generally falls below statutory rates in international jurisdictions. A reconciliation of the significant differences between the U.S. statutory tax rate and the effective income tax rate on pretax income from continuing operations is as follows:



	Fiscal Years Ended January 31,
	2019		2018		2017
U.S. statutory tax rate	21.0	%	33.8	%	35.0	%
U.S. state income taxes, net of federal income tax benefit	3.3	%	1.8	%	1.7	%
Impact of the Tax Act:
One-time transition tax	3.6	%	12.3	%	—	%
Deferred tax effects	(0.7	)%	(14.1	)%	—	%
Income taxed outside the U.S.	(3.5	)%	(6.3	)%	(4.5	)%
Disposition of Walmart Brazil	6.7	%	—	%	—	%
Valuation allowance	6.4	%	2.1	%	—	%
Net impact of repatriated international earnings	0.8	%	(0.1	)%	(1.0	)%
Federal tax credits	(1.2	)%	(0.9	)%	(0.6	)%
Other, net	1.0	%	1.8	%	(0.3	)%
Effective income tax rate	37.4	%	30.4	%	30.3	%

Deferred Taxes

The significant components of the Company's deferred tax account balances are as follows:



	January 31,
(Amounts in millions)	2019			2018
Deferred tax assets:
Loss and tax credit carryforwards	$	2,964		$	1,989
Accrued liabilities	2,135			2,482
Share-based compensation	245			217
Other	1,131			1,251
Total deferred tax assets	6,475			5,939
Valuation allowances	(2,448		)	(1,843		)
Deferred tax assets, net of valuation allowances	4,027			4,096
Deferred tax liabilities:
Property and equipment	4,175			3,954
Acquired intangibles	2,099			401
Inventory	1,354			1,153
Other	899			540
Total deferred tax liabilities	8,527			6,048
Net deferred tax liabilities	$	4,500		$	1,952

The deferred taxes noted above are classified as follows in the Company's Consolidated Balance Sheets:



	January 31,
(Amounts in millions)	2019		2018
Balance Sheet classification
Assets:
Other long-term assets	$	1,796	$	1,879

Liabilities:
Deferred income taxes and other	6,296		3,831

Net deferred tax liabilities	$	4,500	$	1,952

Unremitted Earnings

Prior to the Tax Act, the Company asserted that all unremitted earnings of its foreign subsidiaries were considered indefinitely reinvested. As a result of the Tax Act, the Company reported and paid U.S. tax on the majority of its previously unremitted foreign earnings. During fiscal 2019, the Company repatriated to the U.S. $5.3 billion of cash relating to fiscal 2019 and prior earnings at a tax cost of approximately $40 million. As of January 31, 2019, the Company has not recorded approximately $3 billion of deferred tax liabilities associated with remaining unremitted foreign earnings considered indefinitely reinvested, for which U.S. and foreign income and withholding taxes would be due upon repatriation.

Net Operating Losses, Tax Credit Carryforwards and Valuation Allowances

As of January 31, 2019, the Company had net operating loss and capital loss carryforwards totaling $12.2 billion. Of these carryforwards, $8.0 billion will expire, if not utilized, in various years through 2039. The remaining carryforwards have no expiration. As of January 31, 2019, the Company's transition tax calculation fully utilized all foreign tax credit carryforwards.

The recoverability of these future tax deductions and credits is evaluated by assessing the adequacy of future expected taxable income from all sources, including taxable income in prior carryback years, reversal of taxable temporary differences, forecasted operating earnings and available tax planning strategies. To the extent the Company does not consider it more likely than not that a deferred tax asset will be recovered, a valuation allowance is established. To the extent that a valuation allowance has been established and it is subsequently determined that it is more likely than not that the deferred tax assets will be recovered, the valuation allowance will be released.

The Company had valuation allowances of $2.4 billion and $1.8 billion as of January 31, 2019 and 2018, respectively, on deferred tax assets associated primarily with net operating loss carryforwards for which management has determined it is more likely than not that the deferred tax assets will not be realized. Net activity in the valuation allowance during fiscal 2019 related to the acquisition of Flipkart and disposal of Walmart Brazil, changes in judgment regarding the future realization of deferred tax assets, releases arising from the use of deferred tax assets and decreases due to operating loss expirations and fluctuations in currency exchange rates. Management believes that it is more likely than not that the remaining deferred tax assets will be fully realized.

Uncertain Tax Positions

The benefits of uncertain tax positions are recorded in the Company's Consolidated Financial Statements only after determining a more-likely-than-not probability that the uncertain tax positions will withstand challenge, if any, from taxing authorities.

As of January 31, 2019 and 2018, the amount of unrecognized tax benefits related to continuing operations was $1.3 billion and $1.0 billion, respectively. The amount of unrecognized tax benefits that would affect the Company's effective income tax rate was $1.1 billion and $690 million as of January 31, 2019 and 2018, respectively.

A reconciliation of unrecognized tax benefits from continuing operations is as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019			2018			2017
Unrecognized tax benefits, beginning of year	$	1,010		$	1,050		$	607
Increases related to prior year tax positions	620			130			388
Decreases related to prior year tax positions	(107		)	(254		)	(32		)
Increases related to current year tax positions	203			122			145
Settlements during the period	(390		)	(23		)	(46		)
Lapse in statutes of limitations	(31		)	(15		)	(12		)
Unrecognized tax benefits, end of year	$	1,305		$	1,010		$	1,050

Interest expense and penalties related to these positions were immaterial for fiscal 2019, 2018 and 2017. During the next twelve months, it is reasonably possible that tax audit resolutions could reduce unrecognized tax benefits by an immaterial amount, either because the tax positions are sustained on audit or because the Company agrees to their disallowance. The Company is focused on resolving tax audits as expeditiously as possible. As a result of these efforts, unrecognized tax benefits could potentially be reduced beyond the provided range during the next twelve months. The Company does not expect any change to have a material impact to its Consolidated Financial Statements.

The Company remains subject to income tax examinations for its U.S. federal income taxes generally for fiscal 2014 through 2019. The Company also remains subject to income tax examinations for international income taxes for fiscal 2012 through 2019, and for U.S. state and local income taxes generally for the fiscal years ended 2013 through 2019.

Other Taxes

The Company is subject to tax examinations for value added, sales-based, payroll and other non-income taxes. A number of these examinations are ongoing in various jurisdictions. In certain cases, the Company has received assessments from the respective taxing authorities in connection with these examinations. Unless otherwise indicated, the possible losses or range of possible losses associated with these matters are individually immaterial, but a group of related matters, if decided adversely to the Company, could result in a liability material to the Company's Consolidated Financial Statements.

Contingencies

12 Months Ended

Jan. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Legal Proceedings

The Company is involved in a number of legal proceedings. The Company has made accruals with respect to these matters, where appropriate, which are reflected in the Company's Consolidated Financial Statements. For some matters, a liability is not probable or the amount cannot be reasonably estimated and therefore an accrual has not been made. However, where a liability is reasonably possible and may be material, such matters have been disclosed. The Company may enter into discussions regarding settlement of these matters, and may enter into settlement agreements, if it believes settlement is in the best interest of the Company and its shareholders.

Unless stated otherwise, the matters discussed below, if decided adversely to or settled by the Company, individually or in the aggregate, may result in a liability material to the Company's financial condition or results of operations.

ASDA Equal Value Claims

ASDA Stores, Ltd. ("Asda"), a wholly-owned subsidiary of the Company, is a defendant in nearly 30,000 "equal value" claims that are proceeding before an Employment Tribunal in Manchester (the "Employment Tribunal") in the United Kingdom ("UK") on behalf of current and former Asda store employees, and further claims may be asserted in the future. The claimants allege that the work performed by female employees in Asda's retail stores is of equal value in terms of, among other things, the demands of their jobs compared to that of male employees working in Asda's warehouse and distribution facilities, and that the disparity in pay between these different job positions is not objectively justified. As a result, claimants are requesting differential back pay based on higher wage rates in the warehouse and distribution facilities and higher wage rates on a prospective basis.

On March 23, 2015, Asda asked the Employment Tribunal to stay all proceedings and to "strike out" substantially all of the claims because the claimants had not adhered to the Tribunal's procedural rule for including multiple claimants on the same claim form. On July 23, 2015, the Employment Tribunal denied Asda's requests. Following additional proceedings, on June 20, 2017, the Employment Appeal Tribunal ruled in favor of Asda on the "strike out" issue and remitted the matter to the Employment Tribunal to determine whether the improperly filed claims should be struck out. On July 12, 2017, claimants sought permission from the Court of Appeals to appeal this ruling, which was granted on October 3, 2017. A hearing before the Court of Appeals on the "strike out" issue was held on October 23, 2018. On January 17, 2019, the Court of Appeals declined to strike out any claims relying on the Employment Tribunal’s finding that claimants had not deliberately disregarded the Tribunal’s procedural rule.

As to the initial phase of the Equal Value claims, on October 14, 2016, following a preliminary hearing, the Employment Tribunal ruled that claimants could compare their positions in Asda's retail stores with those of employees in Asda's warehouse and distribution facilities. On August 31, 2017, the Employment Appeal Tribunal affirmed the Employment Tribunal's ruling and also granted permission for Asda to appeal substantially all of its findings. Asda sought permission to appeal the remainder of the Employment Appeal Tribunal's findings to the Court of Appeals. A hearing before the Court of Appeals on the comparability findings was held on October 10, 2018 and the Court of Appeals upheld the Employment Tribunal’s findings.

Claimants are now proceeding in the next phase of their claims. That phase will determine whether the work performed by the claimants is of equal value to the work performed by employees in Asda's warehouse and distribution facilities.

At present, the Company cannot predict the number of such claims that may be filed, and cannot reasonably estimate any loss or range of loss that may arise from these proceedings. The Company believes it has substantial factual and legal defenses to these claims, and intends to defend the claims vigorously.

National Prescription Opiate Litigation and Related Matters

In December 2017, the United States Judicial Panel on Multidistrict Litigation consolidated numerous lawsuits filed against a wide array of defendants by various plaintiffs, including counties, cities, healthcare providers, Native American tribes, individuals, and third-party payors, asserting claims generally concerning the impacts of widespread opioid abuse. The consolidated multidistrict litigation is entitled In re National Prescription Opiate Litigation (MDL No. 2804), and is pending in the U.S. District Court for the Northern District of Ohio. The Company is named as a defendant in some of the cases included in this multidistrict litigation. Similar cases that name the Company have also been filed in state courts by state, local and tribal governments, health care providers and other plaintiffs. Plaintiffs are seeking compensatory and punitive damages, as well as injunctive relief including abatement. The Company cannot predict the number of such claims that may be filed, but believes it has substantial factual and legal defenses to these claims, and intends to defend the claims vigorously. The Company has also been responding to subpoenas, information requests and investigations from governmental entities related to nationwide controlled substance dispensing and distribution practices involving opioids. The Company cannot reasonably estimate any loss or range of loss that may arise from these matters. Accordingly, the Company can provide no assurance as to the scope and outcome of these matters and no assurance as to whether its business, financial position, results of operations or cash flows will not be materially adversely affected.

FCPA Investigation and Related Matters

The Audit Committee (the "Audit Committee") of the Board of Directors of the Company has been conducting an internal investigation into, among other things, alleged violations of the U.S. Foreign Corrupt Practices Act ("FCPA") and other alleged crimes or misconduct in connection with foreign subsidiaries, including Wal-Mart de México, S.A.B. de C.V. ("Walmex"), and whether prior allegations of such violations and/or misconduct were appropriately handled by the Company. The Audit Committee and the Company have engaged outside counsel from a number of law firms and other advisors who are assisting in the on-going investigation of these matters.

The Company has also been conducting a voluntary global review of its policies, practices and internal controls for anti-corruption compliance. The Company is engaged in strengthening its global anti-corruption compliance program through appropriate remedial anti-corruption measures. In November 2011, the Company voluntarily disclosed that investigative activity to the U.S. Department of Justice (the "DOJ") and the Securities and Exchange Commission (the "SEC"). Since the implementation of the global review and the enhanced anti-corruption compliance program, the Audit Committee and the Company have identified or been made aware of additional allegations regarding potential violations of the FCPA. When such allegations have been reported or identified, the Audit Committee and the Company, together with their third party advisors, have conducted inquiries and when warranted based on those inquiries, opened investigations. Inquiries or investigations regarding allegations of potential FCPA violations were commenced in a number of foreign markets where the Company operates or has operated, including, but not limited to, Brazil, China and India.

As previously disclosed, the Company is under investigation by the DOJ and the SEC regarding possible violations of the FCPA. The Company has been cooperating with the agencies and discussions have been ongoing regarding the resolution of these matters. These discussions have progressed to a point that, in fiscal 2018, the Company reasonably estimated a probable loss and recorded an aggregate accrual of $283 million with respect to these matters (the "Accrual"). As the discussions are continuing, there can be no assurance as to the timing or the terms of the final resolution of these matters.

A number of federal and local government agencies in Mexico also investigated these matters. Walmex cooperated with the Mexican governmental agencies that conducted these investigations.

Furthermore, lawsuits relating to the matters under investigation were filed by several of the Company's shareholders against Walmart, certain current and former directors and former officers and certain of Walmex's former officers. These matters have been resolved or immaterial accruals have been made for proposed settlements.

The Company could be exposed to a variety of negative consequences as a result of the matters noted above. There could be one or more enforcement actions in respect of the matters that are the subject of some or all of the on-going government investigations, and such actions, if brought, may result in judgments, settlements, fines, penalties, injunctions, cease and desist orders, debarment or other relief, criminal convictions and/or penalties and shareholder lawsuits may result in judgments against the Company and its current and former directors and officers named in those proceedings. The Company expects that there will be on-going media and governmental interest, including additional news articles from media publications on these matters, which could impact the perception among certain audiences of the Company's role as a corporate citizen.

In addition, the Company has incurred and expects to continue to incur costs in responding to requests for information or subpoenas seeking documents, testimony and other information in connection with the government investigations, in defending the shareholder lawsuits, and in conducting the review and investigations. These costs will be expensed as incurred. For the fiscal years ended January 31, 2019, 2018 and 2017, the Company incurred the following third-party expenses in connection with the FCPA investigation and related matters:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Ongoing inquiries and investigations	$	17	$	26	$	80
Global compliance program and organizational enhancements	13		14		19
Total	$	30	$	40	$	99

The Company does not presently believe that these matters, including the Accrual (and the payment of the Accrual at some point-in-time in the future), will have a material adverse effect on its business, financial position, results of operations or cash flows, although given the inherent uncertainties in such situations, the Company can provide no assurance that these matters will not be material to its business, financial position, results of operations or cash flows in the future.

Commitments

12 Months Ended

Jan. 31, 2019

Commitments Disclosure [Abstract]

Commitments disclosure

Commitments

Rentals (including amounts applicable to taxes, insurance, maintenance, other operating expenses and contingent rentals) under operating leases and other short-term rental arrangements were $3.0 billion, $2.9 billion and $2.6 billion in fiscal 2019, 2018 and 2017, respectively.

Aggregate minimum annual rentals as of January 31, 2019, under non-cancelable leases are as follows:



(Amounts in millions)
Fiscal Year	Operating Leases⁽¹⁾		Capital Lease and Financing Obligations
2020	$	1,856	$	917
2021	1,655		856
2022	1,420		794
2023	1,233		667
2024	1,063		593
Thereafter	6,891		6,069
Total minimum rentals	$	14,118	$	9,896
Less estimated executory costs			23
Net minimum lease payments			9,873
Financing obligation noncash gains and other			2,278
Less imputed interest			(4,739		)
Present value of minimum lease payments			$	7,412


(1)	Represents minimum contractual obligation for non-cancelable leases with initial or remaining terms greater than 12 months as of January 31, 2019.

Certain of the Company's leases provide for the payment of contingent rentals based on a percentage of sales. Such contingent rentals were not material for fiscal 2019, 2018 and 2017. Substantially all of the Company's store leases have renewal options, some of which may trigger an escalation in rentals.

Retirement-Related Benefits

12 Months Ended

Jan. 31, 2019

Retirement Benefits [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

Retirement-Related Benefits

The Company offers a 401(k) plan for associates in the U.S. under which eligible associates can begin contributing to the plan immediately upon hire. The Company also offers a 401(k) type plan for associates in Puerto Rico under which associates can begin to contribute generally after one year of employment. Under these plans, after one year of employment, the Company matches 100% of participant contributions up to 6% of annual eligible earnings. The matching contributions immediately vest at 100% for each associate. Participants can contribute up to 50% of their pretax earnings, but not more than the statutory limits.

Associates in international countries who are not U.S. citizens are covered by various defined contribution post-employment benefit arrangements. These plans are administered based upon the legislative and tax requirements in the countries in which they are established.

The following table summarizes the contribution expense related to the Company's defined contribution plans for fiscal 2019, 2018 and 2017:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Defined contribution plans:
U.S.	$	1,165	$	1,124	$	1,064
International	126		126		173
Total contribution expense for defined contribution plans	$	1,291	$	1,250	$	1,237

Additionally, the Company's subsidiaries in the United Kingdom and Japan have sponsored defined benefit pension plans. The plan in the United Kingdom was overfunded by $326 million and $97 million as of January 31, 2019 and 2018, respectively. The plan in Japan was underfunded by $175 million and $184 million as of January 31, 2019 and 2018, respectively. Overfunded amounts are recorded as assets in the Company's Consolidated Balance Sheets in other assets and deferred charges. Underfunded amounts are recorded as liabilities in the Company's Consolidated Balance Sheets in deferred income taxes and other. Certain other international operations also have defined benefit arrangements that are not significant.

Acquisitions, Disposals, and Related Items Acquisitions, Disposals, and Related Items

12 Months Ended

Jan. 31, 2019

Acquisitions, Disposals, and Related Items [Abstract]

Mergers, Acquisitions and Dispositions Disclosures [Text Block]

Acquisitions, Disposals and Related Items

The following significant transactions impact, or are expected to impact, the operations of the Company's Walmart International segment. Other immaterial transactions have also occurred or been announced.

Walmart Brazil

In August 2018, the Company sold an 80 percent stake of Walmart Brazil to Advent International ("Advent"). Under the terms, Advent agreed to contribute additional capital to the business over a three-year period and Walmart agreed to indemnify Advent for certain matters. Additionally, the Company may receive up to approximately $250 million in contingent consideration. The disposal group consisted of the following:


•	Assets of $3.3 billion, which were fully impaired as discussed in Note 7 upon meeting the held for sale criteria;


•	Liabilities of $1.3 billion, consisting of $0.7 billion in accounts payable and accrued liabilities, $0.1 billion of capital lease and financing obligations, and $0.5 billion of deferred taxes and other long-term liabilities; and


•	Cumulative foreign currency translation loss of $2.0 billion, which was reclassified from accumulated other comprehensive loss (see Note 4).

As a result, the Company recorded a pre-tax net loss of $4.8 billion during during fiscal 2019 in other gains and losses in the Company's Consolidated Statement of Income. In calculating the loss, the fair value of the disposal group was reduced by $0.8 billion related to an indemnity, for which a liability was recognized upon closing and is recorded in deferred income taxes and other in the Company's Consolidated Balance Sheets. Under the indemnity, the Company will indemnify Advent for certain pre-closing tax and legal contingencies and other matters for up to R$2.3 billion, adjusted for interest based on the Brazilian interbank deposit rate.

The Company deconsolidated the financial statements of Walmart Brazil during the third quarter of fiscal 2019 and began accounting for its remaining 20 percent ownership interest, determined to have no initial fair value, using the equity method of accounting.

Flipkart

In August 2018, the Company acquired 81 percent of the outstanding shares, or 77 percent of the diluted shares, of Flipkart, an Indian-based eCommerce marketplace, for cash consideration of approximately $16 billion. The acquisition increases the Company's investment in India, a large, growing economy. The purchase price allocation, which is still preliminary primarily due to certain tax items, is as follows:

•

Assets of $24.1 billion, which comprise primarily of $2.2 billion in cash and cash equivalents, $2.8 billion in other current assets, $5.0 billion in intangible assets and $13.6 billion in goodwill. Of the intangible assets, $4.7 billion represents the fair value of trade names, each with an indefinite life, which were estimated using the income approach based on Level 3 unobservable inputs. The remaining $0.3 billion of intangible assets primarily relate to acquired technology with a life of 3 years. The goodwill arising from the acquisition consists largely of anticipated synergies and economies of scale primarily related to procurement and logistics and is not expected to be deductible for tax purposes;


•	Liabilities of $3.7 billion, which comprise primarily of $1.8 billion of current liabilities and $1.8 billion of deferred income taxes; and


•	Noncontrolling interest of $4.3 billion, for which the fair value was estimated using the income approach based on Level 3 unobservable inputs.

The Company began consolidating the financial statements of Flipkart in the third quarter of fiscal 2019, using a one-month lag. To finance the acquisition, the Company used a combination of cash provided by long-term debt as discussed in Note 6 and cash on hand. The Flipkart results of operations since acquisition and the pro forma financial information are immaterial.

Asda

In April 2018, the Company entered into a definitive agreement and announced the proposed combination of J Sainsbury plc and Asda Group Limited ("Asda Group"), the Company's wholly owned UK retail subsidiary. Under the terms of the combination, the Company would receive approximately 42 percent of the share capital of the combined company. In addition, the Company would receive approximately £3 billion in cash, subject to customary closing adjustments, and retain obligations under the Asda Group defined benefit pension plan. Due to a complex regulatory review process, the outcome of which continues to be uncertain, the held for sale classification criteria for the disposal group was not met as of January 31, 2019. If the transaction closes, the Company would deconsolidate the financial statements of Asda Group and account for the ongoing investment in the combined company using the equity method of accounting.

Suburbia

In April 2017, the Company sold Suburbia, the apparel retail division in Mexico, for $1.0 billion. As part of the sales agreement, the Company is also leasing certain real estate to the purchaser. The sale resulted in a pre-tax gain of $0.7 billion, of which $0.4 billion was recognized in the second quarter of fiscal 2018 in membership and other income, and the remainder was deferred and is being recognized over the lease terms of approximately 20 years.

Yihaodian and JD

In June 2016, the Company sold certain assets relating to Yihaodian, its eCommerce operations in China, including the Yihaodian brand, website and application, to JD in exchange for Class A ordinary shares of JD, valued at $1.5 billion, representing approximately five percent of JD's outstanding ordinary shares on a fully diluted basis. The sale resulted in the recognition of a $535 million noncash gain, which was included in membership and other income in the accompanying Consolidated Statements of Income. Subsequently, during fiscal 2017, the Company purchased $1.9 billion of additional JD shares, representing an incremental ownership percentage of approximately five percent, for a total ownership of approximately ten percent of JD's outstanding ordinary shares.

The following significant transaction primarily impacts the Company's Walmart U.S. segment. Other immaterial transactions have also occurred or been announced.

Jet.com, Inc.

In September 2016, the Company completed the acquisition of jet.com, a U.S.-based eCommerce company. The integration of jet.com into the Walmart U.S. segment is building upon the current eCommerce foundation, allowing for synergies from talent, logistical operations and access to a broader customer base. The total purchase price for the acquisition was $2.4 billion, net of cash acquired. The allocation of the purchase price includes $1.7 billion in goodwill and $0.6 billion in intangible assets. As part of the transaction, the Company is paying additional compensation of approximately $0.8 billion over a five year period.

Restructuring

12 Months Ended

Jan. 31, 2019

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

Restructuring Charges

In fiscal 2018, the Company announced several organizational changes to position the business for more efficient growth going forward. As a result, the Company recorded $1.2 billion in pre-tax restructuring charges in fiscal 2018 as follows:



	Fiscal Year Ended January 31, 2018
(Amounts in millions)	Asset Impairment		Severance Costs		Total
Walmart International	193		43		236
Sam's Club	596		69		665
Corporate and support	—		300		300
Total	$	789	$	412	$	1,201

The asset impairment charges primarily relate to the real estate of the Sam's Club closures and the wind-down of the Brazil first-party eCommerce business, which were written down to their estimated fair value. Refer to Note 7 for information on the fair value measurement.

The pre-tax restructuring charges of $1.2 billion are classified in operating, selling, general and administrative expenses in the Company's Consolidated Statement of Income for fiscal 2018. As of January 31, 2018, substantially all of the severance costs were recorded in accrued liabilities in the Company's Consolidated Balance Sheets and were subsequently paid during fiscal 2019.

Segments

12 Months Ended

Jan. 31, 2019

Segment Reporting Information, Profit (Loss) [Abstract]

Segments

Segments and Disaggregated Revenue

Segments

The Company is engaged in the operation of retail, wholesale and other units, as well as eCommerce websites, located throughout the U.S., Africa, Argentina, Canada, Central America, Chile, China, India, Japan, Mexico and the United Kingdom, as well as Brazil prior to the sale of the majority stake of Walmart Brazil discussed in Note 13. The Company's operations are conducted in three reportable segments: Walmart U.S., Walmart International and Sam's Club. The Company defines its segments as those operations whose results the chief operating decision maker ("CODM") regularly reviews to analyze performance and allocate resources. The Company sells similar individual products and services in each of its segments. It is impractical to segregate and identify revenues for each of these individual products and services.

The Walmart U.S. segment includes the Company's mass merchant concept in the U.S., as well as eCommerce and omni-channel initiatives. The Walmart International segment consists of the Company's operations outside of the U.S., as well as eCommerce and omni-channel initiatives. The Sam's Club segment includes the warehouse membership clubs in the U.S., as well as samsclub.com and omni-channel initiatives. Corporate and support consists of corporate overhead and other items not allocated to any of the Company's segments.

The Company measures the results of its segments using, among other measures, each segment's net sales and operating income, which includes certain corporate overhead allocations. From time to time, the Company revises the measurement of each segment's operating income, including any corporate overhead allocations, as determined by the information regularly reviewed by its CODM. In fiscal 2019, the Company revised certain of its corporate overhead allocations, including depreciation expense, to the operating segments and, accordingly, revised prior period amounts for comparability. Information for the Company's segments, as well as for Corporate and support, including the reconciliation to income before income taxes, is provided in the following table:



(Amounts in millions)	Walmart U.S.		Walmart International		Sam's Club		Corporate and support			Consolidated
Fiscal Year Ended January 31, 2019
Net sales	$	331,666	$	120,824	$	57,839	$	—		$	510,329
Operating income (loss)	17,386		4,883		1,520		(1,832		)	21,957
Interest, net										(2,129		)
Other gains and (losses)										(8,368		)
Income before income taxes										$	11,460
Total assets	$	105,114	$	97,066	$	12,893	$	4,222		$	219,295
Depreciation and amortization	6,201		2,590		639		1,248			10,678
Capital expenditures	6,034		2,661		450		1,199			10,344

Fiscal Year Ended January 31, 2018
Net sales	$	318,477	$	118,068	$	59,216	$	—		$	495,761
Operating income (loss)	16,995		5,229		915		(2,702		)	20,437
Interest, net										(2,178		)
Loss on extinguishment of debt										(3,136		)
Income before income taxes										$	15,123
Total assets	$	104,347	$	81,549	$	13,418	$	5,208		$	204,522
Depreciation and amortization	6,005		2,601		698		1,225			10,529
Capital expenditures	5,680		2,607		626		1,138			10,051

Fiscal Year Ended January 31, 2017
Net sales	$	307,833	$	116,119	$	57,365	$	—		$	481,317
Operating income (loss)	17,012		5,737		1,628		(1,613		)	22,764
Interest, net										(2,267		)
Income before income taxes										$	20,497
Total assets	$	104,262	$	74,508	$	14,125	$	5,930		$	198,825
Depreciation and amortization	5,598		2,629		712		1,141			10,080
Capital expenditures	6,090		2,697		639		1,193			10,619

Total revenues, consisting of net sales and membership and other income, and long-lived assets, consisting primarily of property and equipment, net, aggregated by the Company's U.S. and non-U.S. operations for fiscal 2019, 2018 and 2017, are as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Revenues
U.S. operations	$	392,265	$	380,580	$	367,784
Non-U.S. operations	122,140		119,763		118,089
Total revenues	$	514,405	$	500,343	$	485,873

Long-lived assets
U.S. operations	$	81,144	$	81,478	$	82,746
Non-U.S. operations	30,251		33,340		31,432
Total long-lived assets	$	111,395	$	114,818	$	114,178

No individual country outside of the U.S. had total revenues or long-lived assets that were material to the consolidated totals. Additionally, the Company did not generate material total revenues from any single customer.

Disaggregated Revenues

In the following tables, segment net sales are disaggregated by either merchandise category or market. In addition, net sales related to eCommerce are provided for each segment, which include omni-channel sales, where a customer initiates an order online and the order is fulfilled through a store or club.



(Amounts in millions)	Fiscal Year Ended January 31, 2019
Walmart U.S. net sales by merchandise category	Fiscal Year Ended January 31, 2019
Grocery	$	184,202
General merchandise	108,739
Health and wellness	35,788
Other categories	2,937
Total	$	331,666

Of Walmart U.S.'s total net sales, approximately $15.7 billion related to eCommerce for fiscal 2019.



(Amounts in millions)	Fiscal Year Ended January 31, 2019
Walmart International net sales by market	Fiscal Year Ended January 31, 2019
Mexico and Central America	$	31,790
United Kingdom	30,547
Canada	18,613
China	10,702
Other	$	29,172
Total	$	120,824

Of International's total net sales, approximately $6.7 billion related to eCommerce for fiscal 2019.



(Amounts in millions)	Fiscal Year Ended January 31, 2019
Sam’s Club net sales by merchandise category	Fiscal Year Ended January 31, 2019
Grocery and consumables	$	33,708
Fuel, tobacco and other categories	12,110
Home and apparel	5,452
Technology, office and entertainment	3,388
Health and wellness	3,181
Total	$	57,839

Of Sam's Club's total net sales, approximately $2.7 billion related to eCommerce for fiscal 2019.

Subsequent Event

12 Months Ended

Jan. 31, 2019

Subsequent Events [Abstract]

Subsequent events

Subsequent Event

Dividends Declared

The Board of Directors approved, effective February 19, 2019, the fiscal 2020 annual dividend of $2.12 per share, an increase over the fiscal 2019 dividend of $2.08 per share. For fiscal 2020, the annual dividend will be paid in four quarterly installments of $0.53 per share, according to the following record and payable dates:



Record Date		Payable Date
March 15, 2019		April 1, 2019
May 10, 2019		June 3, 2019
August 9, 2019		September 3, 2019
December 6, 2019		January 2, 2020

Quarterly Financial Data (unaudited)

12 Months Ended

Jan. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly financial information

Quarterly Financial Data (Unaudited)



	Fiscal Year Ended January 31, 2019
(Amounts in millions, except per share data)	Q1		Q2			Q3		Q4		Total
Total revenues	$	122,690	$	128,028		$	124,894	$	138,793	$	514,405
Net sales	121,630		127,059			123,897		137,743		510,329
Cost of sales	91,707		95,571			93,116		104,907		385,301
Consolidated net income (loss)	2,276		(727		)	1,817		3,813		7,179
Consolidated net income (loss) attributable to Walmart	2,134		(861		)	1,710		3,687		6,670
Basic net income (loss) per common share attributable to Walmart	0.72		(0.29		)	0.58		1.27		2.28
Diluted net income (loss) per common share attributable to Walmart⁽¹⁾	0.72		(0.29		)	0.58		1.27		2.26

	Fiscal Year Ended January 31, 2018
	Q1		Q2			Q3		Q4		Total
Total revenues	$	117,542	$	123,355		$	123,179	$	136,267	$	500,343
Net sales	116,526		121,949			122,136		135,150		495,761
Cost of sales	87,688		91,521			91,547		102,640		373,396
Consolidated net income	3,152		3,104			1,904		2,363		10,523
Consolidated net income attributable to Walmart	3,039		2,899			1,749		2,175		9,862
Basic net income per common share attributable to Walmart	1.00		0.96			0.59		0.74		3.29
Diluted net income per common share attributable to Walmart⁽¹⁾	1.00		0.96			0.58		0.73		3.28


(1)	The sum of quarterly amounts may not agree to annual amount due to rounding and the impact of a decreasing amount of shares outstanding during the year.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jan. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of operations

General

Walmart Inc. ("Walmart" or the "Company") helps people around the world save money and live better – anytime and anywhere – by providing the opportunity to shop in retail stores and through eCommerce. Through innovation, the Company is striving to continuously improve a customer-centric experience that seamlessly integrates eCommerce and retail stores in an omni-channel offering that saves time for its customers. Each week, the Company serves over 275 million customers who visit its more than 11,300 stores and numerous eCommerce websites under 58 banners in 27 countries.

The Company's operations comprise three reportable segments: Walmart U.S., Walmart International and Sam's Club.

Consolidation, policy

Principles of Consolidation

The Consolidated Financial Statements include the accounts of Walmart and its subsidiaries as of and for the fiscal years ended January 31, 2019 ("fiscal 2019"), January 31, 2018 ("fiscal 2018") and January 31, 2017 ("fiscal 2017"). Intercompany accounts and transactions have been eliminated in consolidation. The Company consolidates variable interest entities where it has been determined that the Company is the primary beneficiary of those entities' operations. Investments for which the Company exercises significant influence but does not have control are accounted for under the equity method. These variable interest entities and equity method investments are immaterial to the Company's Consolidated Financial Statements.

The Company's Consolidated Financial Statements are based on a fiscal year ending on January 31 for the United States ("U.S.") and Canadian operations. The Company consolidates all other operations generally using a one-month lag and based on a calendar year. There were no significant intervening events during the month of January 2019 related to the operations consolidated using a lag that materially affected the Consolidated Financial Statements.

Use of estimates, policy

Use of Estimates

The Consolidated Financial Statements have been prepared in conformity with U.S. generally accepted accounting principles. Those principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Management's estimates and assumptions also affect the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates.

Cash, cash equivalents and restricted cash, policy

Cash and Cash Equivalents

The Company considers investments with a maturity when purchased of three months or less to be cash equivalents. All credit card, debit card and electronic transfer transactions that process in less than seven days are classified as cash and cash equivalents. The amounts due from banks for these transactions classified as cash and cash equivalents totaled $1.4 billion and $1.6 billion as of January 31, 2019 and 2018, respectively.

The Company's cash balances are held in various locations around the world. Substantially all of the Company's $7.7 billion and $6.8 billion of cash and cash equivalents as of January 31, 2019 and January 31, 2018 were held outside of the U.S. Cash and cash equivalents held outside of the U.S. are generally utilized to support liquidity needs in the Company's non-U.S. operations.

The Company uses intercompany financing arrangements in an effort to ensure cash can be made available in the country in which it is needed with the minimum cost possible. During fiscal 2019, the Company repatriated to the U.S. $5.3 billion of cash at a tax cost of approximately $40 million.

As of January 31, 2019 and 2018, cash and cash equivalents of approximately $2.8 billion and $1.4 billion, respectively, may not be freely transferable to the U.S. due to local laws or other restrictions. Of the $2.8 billion as of January 31, 2019, approximately $1.2 billion can only be accessed through dividends or intercompany financing arrangements subject to approval of Flipkart Private Limited ("Flipkart") minority shareholders; however, this cash is expected to be utilized to fund the operations of Flipkart.

Restricted Cash

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows–Restricted Cash (Topic 230), which requires restricted cash to be included with cash and cash equivalents when reconciling the beginning and ending amounts on the statement of cash flows. The Company adopted this ASU on February 1, 2018. Restricted cash held outside of cash and cash equivalents was $34 million as of January 31, 2019, primarily recorded in prepaid expenses and other in the Consolidated Balance Sheets, and $300 million as of January 31, 2018, primarily recorded in other long-term assets in the Consolidated Balance Sheets.

Receivables, policy

Receivables

Receivables are stated at their carrying values, net of a reserve for doubtful accounts, and are primarily due from the following: insurance companies resulting from pharmacy sales; banks for customer credit and debit cards and electronic bank transfers that take in excess of seven days to process; governments for income taxes; suppliers for marketing or incentive programs; and real estate transactions.

Inventory, policy

Inventories

The Company values inventories at the lower of cost or market as determined primarily by the retail inventory method of accounting, using the last-in, first-out ("LIFO") method for Walmart U.S. segment's inventories. The inventory at the Walmart International segment is valued primarily by the retail inventory method of accounting, using the first-in, first-out ("FIFO") method. The retail inventory method of accounting results in inventory being valued at the lower of cost or market, since permanent markdowns are immediately recorded as a reduction of the retail value of inventory. The inventory at the Sam's Club segment is valued using the weighted-average cost LIFO method. As of January 31, 2019 and January 31, 2018, the Company's inventories valued at LIFO approximated those inventories as if they were valued at FIFO.

Assets held for sale, policy

Assets Held for Sale

Assets held for sale represent components and businesses that meet accounting requirements to be classified as held for sale and are presented as single asset and liability amounts in the Company's financial statements with a valuation allowance, if necessary, to recognize the net carrying amount at the lower of cost or fair value, less costs to sell. The Company reviews all businesses and assets held for sale each reporting period to determine whether the existing carrying amounts are fully recoverable in comparison to estimated fair values. As of January 31, 2019 and January 31, 2018, immaterial amounts for assets and liabilities held for sale were classified in prepaid expenses and other and accrued liabilities, respectively, in the Consolidated Balance Sheets.

Property, plant and equipment, policy

Property and Equipment

Property and equipment are initially recorded at cost. Gains or losses on disposition are recognized as earned or incurred. Costs of major improvements are capitalized, while costs of normal repairs and maintenance are expensed as incurred. The following table summarizes the Company's property and equipment balances and includes the estimated useful lives that are generally used to depreciate the assets on a straight-line basis:



		As of January 31,
(Amounts in millions)	Estimated Useful Lives	2019			2018
Land	N/A	$	24,526		$	25,298
Buildings and improvements	3-40 years	101,006			101,155
Fixtures and equipment	1-30 years	54,488			52,695
Transportation equipment	3-15 years	2,316			2,387
Construction in progress	N/A	3,474			3,619
Property and equipment		$	185,810		$	185,154
Accumulated depreciation		(81,493		)	(77,479		)
Property and equipment, net		$	104,317		$	107,675

Leasehold improvements are depreciated or amortized over the shorter of the estimated useful life of the asset or the remaining expected lease term. Total depreciation and amortization expense for property and equipment, property under financing obligations, property under capital leases and intangible assets for fiscal 2019, 2018 and 2017 was $10.7 billion, $10.5 billion and $10.1 billion, respectively.

Lease, policy

Leases

The Company leases land, buildings, fixtures and equipment and transportation equipment. The Company estimates the expected lease term by assuming the exercise of renewal options where an economic penalty exists that would preclude the abandonment of the lease at the end of the initial non-cancelable term and the exercise of such renewal is at the sole discretion of the Company. The expected lease term is used in the determination of whether a store or club lease is a capital or operating lease and in the calculation of straight-line rent expense. Additionally, the useful life of leasehold improvements is limited by the expected lease term or the economic life of the asset, whichever is shorter. If significant expenditures are made for leasehold improvements late in the expected lease term and renewal is reasonably assured, the useful life of the leasehold improvement is limited to the end of the renewal period or economic life of the asset, whichever is shorter. Rent abatements and escalations are considered in the calculation of minimum lease payments in the Company's capital lease tests and in determining straight-line rent expense for operating leases.

The Company is often involved in the construction of its leased stores. In certain cases, payments made for certain structural components included in the lessor's construction of the leased assets result in the Company being deemed the owner of the leased assets for accounting purposes. As a result, the payments, regardless of the significance, are automatic indicators of ownership and require the Company to capitalize the lessor's total project cost with a corresponding financing obligation. Upon completion of the lessor's project, the Company performs a sale-leaseback analysis to determine if these assets and the related financing obligation can be derecognized from the Company's Consolidated Balance Sheets. If the Company is deemed to have "continuing involvement," the leased assets and the related financing obligation remain on the Company's Consolidated Balance Sheets and are generally amortized over the lease term. At the end of the lease term, including exercise of any renewal options, the net remaining financing obligation over the net carrying value of the fixed asset will be recognized as a non-cash gain.

Impairment or disposal of long-lived assets, policy

Long-Lived Assets

Long-lived assets are initially recorded at cost. Management reviews long-lived assets for indicators of impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The evaluation is performed at the lowest level of identifiable cash flows, which is at the individual store or club level. Undiscounted cash flows expected to be generated by the related assets are estimated over the assets' useful lives based on updated projections. If the evaluation indicates that the carrying amount of the assets may not be recoverable, any potential impairment is measured based upon the fair value of the related asset or asset group as determined by an appropriate market appraisal or other valuation technique.

Goodwill and intangible assets, policy

Goodwill and Other Acquired Intangible Assets

Goodwill represents the excess of the purchase price over the fair value of net assets acquired in business combinations and is allocated to the appropriate reporting unit when acquired. Other acquired intangible assets are stated at the fair value acquired as determined by a valuation technique commensurate with the intended use of the related asset. Goodwill and indefinite-lived intangible assets are not amortized; rather, they are evaluated for impairment annually and whenever events or changes in circumstances indicate that the value of the asset may be impaired. Definite-lived intangible assets are considered long-lived assets and are amortized on a straight-line basis over the periods that expected economic benefits will be provided.

Goodwill is assigned to the reporting unit which consolidates the acquisition. Components within the same reportable segment are aggregated and deemed a single reporting unit if the components have similar economic characteristics. As of January 31, 2019, the Company's reporting units consisted of Walmart U.S., Walmart International and Sam's Club. Goodwill is evaluated for impairment using either a qualitative or quantitative approach for each of the Company's reporting units. Generally, a qualitative assessment is first performed to determine whether a quantitative goodwill impairment test is necessary. If management determines, after performing an assessment based on the qualitative factors, that the fair value of the reporting unit is more likely than not less than the carrying amount, or that a fair value of the reporting unit substantially in excess of the carrying amount cannot be assured, then a quantitative goodwill impairment test would be required. The quantitative test for goodwill impairment is performed by determining the fair value of the related reporting units. Fair value is measured based on the discounted cash flow method and relative market-based approaches. After evaluation, management determined the fair value of each reporting unit is greater than the carrying amount and, accordingly, the Company has not recorded any impairment charges related to goodwill.

The following table reflects goodwill activity, by reportable segment, for fiscal 2019 and 2018:



(Amounts in millions)	Walmart U.S.		Walmart International			Sam's Club		Total
Balances as of February 1, 2017	$	2,236	$	14,488		$	313	$	17,037
Changes in currency translation and other	—		996			—		996
Acquisitions	209		—			—		209
Balances as of January 31, 2018	2,445		15,484			313		18,242
Changes in currency translation and other	—		(743		)	—		(743		)
Acquisitions ⁽¹⁾	107		13,575			—		13,682
Balances as of January 31, 2019	$	2,552	$	28,316		$	313	$	31,181

⁽¹⁾ Goodwill recorded in fiscal 2019 for Walmart International relates to Flipkart.

Intangible assets are included in other long-term assets in the Company's Consolidated Balance Sheets. These assets are evaluated for impairment based on their fair values using valuation techniques which are updated annually based on the most recent variables and assumptions. There were no significant impairment charges related to intangible assets for fiscal 2019, 2018 and 2017.

Fair Value Measurement, Policy [Policy Text Block]

Fair Value Measurement

In January 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-01, Financial Instruments–Overall (Topic 825), which updated certain aspects of recognition, measurement, presentation and disclosure of financial instruments ("ASU 2016-01"). The Company adopted this ASU on February 1, 2018, which primarily impacted the Company's accounting for its investment in JD.com, Inc. ("JD") and resulted in a positive adjustment to retained earnings of approximately $2.6 billion, net of tax, based on the market value of the Company's investment in JD as of January 31, 2018. The adoption required prospective changes in fair value of the Company's investment in JD to be recorded in the Consolidated Statement of Income, which the Company classifies in other gains and losses.

The Company records and discloses certain financial and non-financial assets and liabilities at fair value. The fair value of an asset is the price at which the asset could be sold in an orderly transaction between unrelated, knowledgeable and willing parties able to engage in the transaction. The fair value of a liability is the amount that would be paid to transfer the liability to a new obligor in a transaction between such parties, not the amount that would be paid to settle the liability with the creditor.

Self Insurance Reserve [Policy Text Block]

Self Insurance Reserves

The Company self-insures a number of risks, including, but not limited to, workers' compensation, general liability, auto liability, product liability and certain employee-related healthcare benefits. Standard actuarial procedures and data analysis are used to estimate the liabilities associated with these risks as of the balance sheet date on an undiscounted basis. The recorded liabilities reflect the ultimate cost for claims incurred but not paid and any estimable administrative run-out expenses related to the processing of these outstanding claim payments. On a regular basis, the liabilities are evaluated for appropriateness with claims reserve valuations. To limit exposure to some risks, the Company maintains insurance coverage with varying limits and retentions, including stop-loss insurance coverage for workers' compensation, general liability and auto liability.

Derivatives, Policy [Policy Text Block]

Derivatives

The Company uses derivatives for hedging purposes to manage its exposure to changes in interest and currency exchange rates, as well as to maintain an appropriate mix of fixed- and variable-rate debt. Use of derivatives in hedging programs subjects the Company to certain risks, such as market and credit risks. Market risk represents the possibility that the value of the derivatives will change. In a hedging relationship, the change in the value of the derivative is offset to a great extent by the change in the value of the underlying hedged item. Credit risk related to a derivative represents the possibility that the counterparty will not fulfill the terms of the contract. Credit risk is monitored through established approval procedures, including setting concentration limits by counterparty, reviewing credit ratings and requiring collateral from the counterparty when appropriate. The Company only enters into derivatives with counterparties rated "A-" or better by nationally recognized credit rating agencies. Subsequent to entering into derivatives, the Company regularly monitors the credit ratings of its counterparties. The notional, or contractual, amount of the Company's derivatives is used to measure interest to be paid or received and does not represent the Company's exposure due to credit risk.

The contractual terms of the Company's derivatives closely mirror those of the hedged items, providing a high degree of risk reduction and correlation. Contracts that are effective at meeting the risk reduction and correlation criteria are recorded using hedge accounting. If a derivative is recorded using hedge accounting, depending on the nature of the hedge, changes in fair value will either be offset against the change in fair value of the hedged assets, liabilities or firm commitments through earnings or be recognized in accumulated other comprehensive loss until the hedged item is recognized in earnings. Any hedge ineffectiveness is immediately recognized in earnings. The Company's net investment and cash flow hedges are highly effective and the ineffective portion has not been, and is not expected to be, significant. Derivatives that do not meet the criteria for hedge accounting, or contracts for which the Company has not elected hedge accounting, are recorded at fair value with unrealized gains or losses reported in earnings during the period of the change.

Fair Value Hedges

The Company is a party to receive fixed-rate, pay variable-rate interest rate swaps that the Company uses to hedge the fair value of fixed-rate debt. The notional amounts are used to measure interest to be paid or received and do not represent the Company's exposure due to credit loss. The Company's interest rate swaps that receive fixed-interest rate payments and pay variable-interest rate payments are designated as fair value hedges. As the specific terms and notional amounts of the derivatives match those of the fixed-rate debt being hedged, the derivatives are assumed to be perfectly effective hedges. Changes in the fair values of these derivatives are recorded in earnings, but are offset by corresponding changes in the fair values of the hedged items, also recorded in earnings, and, accordingly, do not impact the Company's Consolidated Statements of Income. These derivatives will mature on dates ranging from October 2020 to April 2024.

Net Investment Hedges

The Company is a party to cross-currency interest rate swaps that the Company uses to hedge its net investments. The agreements are contracts to exchange fixed-rate payments in one currency for fixed-rate payments in another currency. All changes in the fair value of these derivatives are recorded in accumulated other comprehensive loss, offsetting the currency translation adjustment of the related investment that is also recorded in accumulated other comprehensive loss. These derivatives will mature on dates ranging from July 2020 to February 2030.

The Company has issued foreign-currency-denominated long-term debt as hedges of net investments of certain of its foreign operations. These foreign-currency-denominated long-term debt issuances are designated and qualify as nonderivative hedging instruments. Accordingly, the foreign currency translation of these debt instruments is recorded in accumulated other comprehensive loss, offsetting the foreign currency translation adjustment of the related net investment that is also recorded in accumulated other comprehensive loss.

Cash Flow Hedges

The Company is a party to receive fixed-rate, pay fixed-rate cross-currency interest rate swaps to hedge the currency exposure associated with the forecasted payments of principal and interest of certain non-U.S. denominated debt. The swaps are designated as cash flow hedges of the currency risk related to payments on the non-U.S. denominated debt. The effective portion of changes in the fair value of derivatives designated as cash flow hedges of foreign exchange risk is recorded in accumulated other comprehensive loss and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The hedged items are recognized foreign currency-denominated liabilities that are re-measured at spot exchange rates each period, and the assessment of effectiveness (and measurement of any ineffectiveness) is based on total changes in the related derivative's cash flows. As a result, the amount reclassified into earnings each period includes an amount that offsets the related transaction gain or loss arising from that re-measurement and the adjustment to earnings for the period's allocable portion of the initial spot-forward difference associated with the hedging instrument. These derivatives will mature on dates ranging from April 2022 to March 2034.

Financial Statement Presentation

Realized derivative gains and losses are recorded in interest, net, in the Company's Consolidated Statements of Income. Although subject to master netting arrangements, the Company does not offset derivative assets and liabilities in its Consolidated Balance Sheets. Derivatives with an unrealized gain are recorded in the Company's Consolidated Balance Sheets as either current or non-current assets, based on maturity date, and derivatives with an unrealized loss are recorded as either current or non-current liabilities, based on maturity date. Refer to Note 7 for the net presentation of the Company's derivatives. Additionally, the Company records cash collateral received as amounts due to the counterparties exclusive of any derivative asset and records cash collateral it posts with counterparties as amounts receivable from those counterparties exclusive of any derivative liability.

Income tax, policy

Income Taxes

Income taxes are accounted for under the balance sheet method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases ("temporary differences"). Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rate is recognized in income in the period that includes the enactment date.

Deferred tax assets are evaluated for future realization and reduced by a valuation allowance to the extent that a portion is not more likely than not to be realized. Many factors are considered when assessing whether it is more likely than not that the deferred tax assets will be realized, including recent cumulative earnings, expectations of future taxable income, carryforward periods, and other relevant quantitative and qualitative factors. The recoverability of the deferred tax assets is evaluated by assessing the adequacy of future expected taxable income from all sources, including reversal of taxable temporary differences, forecasted operating earnings and available tax planning strategies. These sources of income rely heavily on estimates.

The Tax Cuts and Jobs Act contains a provision which subjects a US parent of a foreign subsidiary to current US tax on its global intangible low–taxed income (“GILTI”). The GILTI income is eligible for a deduction, which lowers the effective tax rate to 10.5% for calendar years 2018 through 2025 and 13.125% after 2025. The Company will report the tax impact of GILTI as a period cost when incurred. Accordingly, the Company is not providing deferred taxes for basis differences expected to reverse as GILTI.

In determining the provision for income taxes, an annual effective income tax rate is used based on annual income, permanent differences between book and tax income, and statutory income tax rates. Discrete events such as audit settlements or changes in tax laws are recognized in the period in which they occur.

The Company records a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return. The Company records interest and penalties related to unrecognized tax benefits in interest expense and operating, selling, general and administrative expenses, respectively, in the Company's Consolidated Statements of Income. Refer to Note 9 for additional income tax disclosures.

In February 2018, the FASB issued ASU 2018-02, Income Statement–Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ("ASU 2018-02"). This ASU provides that the stranded tax effects from the Tax Cuts and Jobs Act of 2017 ("Tax Act") in accumulated other comprehensive loss may be reclassified to retained earnings. The Company adopted this ASU on February 1, 2018, which resulted in an immaterial negative adjustment to retained earnings.

Revenue recognition, policy

Revenue Recognition

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The Company adopted this ASU on February 1, 2018, using the modified retrospective approach and applied this ASU only to contracts not completed as of February 1, 2018. The accounting policies and other disclosures are below as well as the disclosure of disaggregated revenues in Note 15. The impact of adopting this ASU was not material to the Consolidated Financial Statements.

Net Sales

The Company recognizes sales revenue, net of sales taxes and estimated sales returns, at the time it sells merchandise to the customer. eCommerce sales include shipping revenue and are recorded upon delivery to the customer. Additionally, estimated sales returns are calculated based on expected returns.

Membership Fee Revenue

The Company recognizes membership fee revenue both in the U.S. and internationally over the term of the membership, which is typically 12 months. Membership fee revenue was $1.4 billion for each of fiscal 2019, 2018 and 2017, respectively. Membership fee revenue is included in membership and other income in the Company's Consolidated Statements of Income. Deferred membership fee is included in accrued liabilities in the Company's Consolidated Balance Sheets.

Gift Cards

Customer purchases of gift cards are not recognized as sales until the card is redeemed and the customer purchases merchandise using the gift card. Gift cards in the U.S. and some countries do not carry an expiration date; therefore, customers and members can redeem their gift cards for merchandise and services indefinitely. Gift cards in some countries where the Company does business have expiration dates. While gift cards are generally redeemed within 12 months, a certain number of gift cards, both with and without expiration dates, will not be fully redeemed. Management estimates unredeemed balances and recognizes revenue for these amounts in membership and other income in the Company's Consolidated Statements of Income over the expected redemption period. Management periodically reviews and updates its estimates.

Financial and Other Services

The Company recognizes revenue from service transactions at the time the service is performed. Generally, revenue from services is classified as a component of net sales in the Company's Condensed Consolidated Statements of Income.

Contract Balances

Contract balances as a result of transactions with customers primarily consist of receivables included in receivables, net, and deferred gift card revenue included in accrued liabilities in the Company's Condensed Consolidated Balance Sheets. The following table provides the Company's receivables and deferred gift card revenue from transactions with customers:



(Amounts in millions)	As of January 31, 2019
Assets:
Receivables from transactions with customers, net	$	2,538

Liabilities:
Deferred gift card revenue	$	1,932

Cost of sales, policy

Cost of Sales

Cost of sales includes actual product cost, the cost of transportation to the Company's distribution facilities, stores and clubs from suppliers, the cost of transportation from the Company's distribution facilities to the stores, clubs and customers and the cost of warehousing for the Sam's Club segment and import distribution centers. Cost of sales is reduced by supplier payments that are not a reimbursement of specific, incremental and identifiable costs.

Payments from suppliers policy

Payments from Suppliers

The Company receives consideration from suppliers for various programs, primarily volume incentives, warehouse allowances and reimbursements for specific programs such as markdowns, margin protection, advertising and supplier-specific fixtures. Payments from suppliers are accounted for as a reduction of cost of sales, except in certain limited situations when the payment is a reimbursement of specific, incremental and identifiable costs, and are recognized in the Company's Consolidated Statements of Income when the related inventory is sold.

Selling, general and administrative expenses, policy

Operating, Selling, General and Administrative Expenses

Operating, selling, general and administrative expenses include all operating costs of the Company, except cost of sales, as described above. As a result, the majority of the cost of warehousing and occupancy for the Walmart U.S. and Walmart International segments' distribution facilities is included in operating, selling, general and administrative expenses. Because the Company only includes a portion of the cost of its Walmart U.S. and Walmart International segments' distribution facilities in cost of sales, its gross profit and gross profit as a percentage of net sales may not be comparable to those of other retailers that may include all costs related to their distribution facilities in cost of sales and in the calculation of gross profit.

Advertising costs, policy

Advertising Costs

Advertising costs are expensed as incurred, consist primarily of print, television and digital advertisements and are recorded in operating, selling, general and administrative expenses in the Company's Consolidated Statements of Income. In certain limited situations, reimbursements from suppliers that are for specific, incremental and identifiable advertising costs are recognized as a reduction of advertising costs in operating, selling, general and administrative expenses. Advertising costs were $3.5 billion, $3.1 billion and $2.9 billion for fiscal 2019, 2018 and 2017, respectively.

Foreign currency transactions and translations policy

Currency Translation

The assets and liabilities of all international subsidiaries are translated from the respective local currency to the U.S. dollar using exchange rates at the balance sheet date. Related translation adjustments are recorded as a component of accumulated other comprehensive loss. The Company's Consolidated Statements of Income of all international subsidiaries are translated from the respective local currencies to the U.S. dollar using average exchange rates for the period covered by the income statements.

New accounting pronouncements, policy

Recent Accounting Pronouncements

Leases

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lease assets and liabilities to be recorded on the balance sheet. Certain qualitative and quantitative disclosures are also required. The Company will adopt this ASU and related amendments as of the beginning of the first quarter of the year ending January 31, 2020 ("fiscal 2020") and will be electing certain practical expedients permitted under the transition guidance, including to retain the historical lease classification as well as relief from reviewing expired or existing contracts to determine if they contain leases. The Company will be exempting leases with an initial term of twelve months or less from balance sheet recognition and, for most classes of assets, the Company will be combining non-lease components with lease components. Management has implemented and continues to implement new lease systems in connection with the adoption.

The adoption of this ASU and related amendments will result in total assets and liabilities increasing approximately $15 billion, which is primarily due to recognizing approximately $17.5 billion of operating lease assets and liabilities, partially offset by derecognizing approximately $3 billion of assets and liabilities related to financial obligations connected with the construction of leased stores. Several other line items in the Company’s Consolidated Balance Sheet will also be impacted by immaterial amounts. The Company’s Consolidated Statements of Income and Consolidated Statements of Cash Flows will not be materially impacted. Finally, management expects the first quarter fiscal 2020 disclosure of future operating commitments to significantly increase compared to the aggregate minimum rentals disclosed in Note 11, primarily because the new standard requires reasonably assured renewals be included.

Financial Instruments

In June 2016, the FASB issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326), which modifies the measurement of expected credit losses of certain financial instruments. The Company will adopt this ASU on February 1, 2020. Management is currently evaluating this ASU to determine its impact to the Company's consolidated financial statements.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Property, plant and equipment

The following table summarizes the Company's property and equipment balances and includes the estimated useful lives that are generally used to depreciate the assets on a straight-line basis:



		As of January 31,
(Amounts in millions)	Estimated Useful Lives	2019			2018
Land	N/A	$	24,526		$	25,298
Buildings and improvements	3-40 years	101,006			101,155
Fixtures and equipment	1-30 years	54,488			52,695
Transportation equipment	3-15 years	2,316			2,387
Construction in progress	N/A	3,474			3,619
Property and equipment		$	185,810		$	185,154
Accumulated depreciation		(81,493		)	(77,479		)
Property and equipment, net		$	104,317		$	107,675

Schedule of goodwill

The following table reflects goodwill activity, by reportable segment, for fiscal 2019 and 2018:



(Amounts in millions)	Walmart U.S.		Walmart International			Sam's Club		Total
Balances as of February 1, 2017	$	2,236	$	14,488		$	313	$	17,037
Changes in currency translation and other	—		996			—		996
Acquisitions	209		—			—		209
Balances as of January 31, 2018	2,445		15,484			313		18,242
Changes in currency translation and other	—		(743		)	—		(743		)
Acquisitions ⁽¹⁾	107		13,575			—		13,682
Balances as of January 31, 2019	$	2,552	$	28,316		$	313	$	31,181

⁽¹⁾ Goodwill recorded in fiscal 2019 for Walmart International relates to Flipkart.

Contract with Customer, Asset and Liability [Table Text Block]

The following table provides the Company's receivables and deferred gift card revenue from transactions with customers:



(Amounts in millions)	As of January 31, 2019
Assets:
Receivables from transactions with customers, net	$	2,538

Liabilities:
Deferred gift card revenue	$	1,932

Net Income Per Common Share (Tables)

12 Months Ended

Jan. 31, 2019

Earnings Per Share [Abstract]

Schedule of calculation of numerator and denominator in earnings per share

The following table provides a reconciliation of the numerators and denominators used to determine basic and diluted net income per common share attributable to Walmart:



	Fiscal Years Ended January 31,
(Amounts in millions, except per share data)	2019			2018			2017
Numerator
Consolidated net income	$	7,179		$	10,523		$	14,293
Consolidated net income attributable to noncontrolling interest	(509		)	(661		)	(650		)
Consolidated net income attributable to Walmart	$	6,670		$	9,862		$	13,643

Denominator
Weighted-average common shares outstanding, basic	2,929			2,995			3,101
Dilutive impact of stock options and other share-based awards	16			15			11
Weighted-average common shares outstanding, diluted	2,945			3,010			3,112

Net income per common share attributable to Walmart
Basic	$	2.28		$	3.29		$	4.40
Diluted	2.26			3.28			4.38

Shareholders' Equity (Tables)

12 Months Ended

Jan. 31, 2019

Share-based Compensation [Abstract]

Schedule of share-based compensation expense by award type

The following table summarizes the Company's share-based compensation expense by award type for all plans:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Restricted stock and performance share units	$	293	$	234	$	237
Restricted stock units	456		368		332
Other	24		24		27
Share-based compensation expense	$	773	$	626	$	596

Schedule of restricted stock and performance share awards and restricted stock rights activity

The following table shows the activity for restricted stock and performance share units and restricted stock units during fiscal 2019:



	Restricted Stock and Performance Share Units⁽¹⁾				Restricted Stock Units
(Shares in thousands)	Shares		Weighted-Average Grant-Date Fair Value Per Share		Shares		Weighted-Average Grant-Date Fair Value Per Share
Outstanding as of February 1, 2018	8,558		$	70.47	24,153		$	66.69
Granted	3,600		84.94		7,946		80.94
Vested/exercised	(2,448	)	74.67		(5,524	)	69.52
Forfeited	(911	)	68.24		(2,620	)	69.74
Outstanding as of January 31, 2019	8,799		$	75.39	23,955		$	70.47


(1)	Assumes payout rate at 100% for Performance Share Units.

Schedule of restricted stock and performance share awards and restricted stock rights

The following table includes additional information related to restricted stock and performance share units and restricted stock units:



	Fiscal Years Ended January 31,
(Amounts in millions, except years)	2019		2018		2017
Fair value of restricted stock and performance share units vested	$	183	$	181	$	149
Fair value of restricted stock units vested	386		344		261
Unrecognized compensation cost for restricted stock and performance share units	362		291		211
Unrecognized compensation cost for restricted stock units	1,002		972		986
Weighted average remaining period to expense for restricted stock and performance share units (years)	1.1		1.2		1.3
Weighted average remaining period to expense for restricted stock units (years)	1.6		1.8		1.9

Schedule of Company's share repurchases

The following table provides, on a settlement date basis, the number of shares repurchased, average price paid per share and total amount paid for share repurchases for fiscal 2019, 2018 and 2017:



	Fiscal Years Ended January 31,
(Amounts in millions, except per share data)	2019		2018		2017
Total number of shares repurchased	79.5		104.9		119.9
Average price paid per share	$	93.18	$	79.11	$	69.18
Total cash paid for share repurchases	$	7,410	$	8,296	$	8,298

Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Jan. 31, 2019

Other Comprehensive Income (Loss), Tax [Abstract]

Composition of accumulated other comprehensive income (loss)

The following table provides the changes in the composition of total accumulated other comprehensive loss for fiscal 2019, 2018 and 2017:



(Amounts in millions and net of income taxes)	Currency Translation and Other			Net Investment Hedges			Unrealized Gain on Available-for-Sale Securities			Cash Flow Hedges			Minimum Pension Liability			Total
Balances as of February 1, 2016	$	(11,690	)	$	1,022		$	—		$	(336	)	$	(593	)	$	(11,597	)
Other comprehensive income (loss) before reclassifications, net	(2,817		)	413			145			(22		)	(389		)	(2,670		)
Amounts reclassified from accumulated other comprehensive loss, net	—			—			—			43			(8		)	35
Balances as of January 31, 2017	(14,507		)	1,435			145			(315		)	(990		)	(14,232		)
Other comprehensive income (loss) before reclassifications, net	2,345			(405		)	1,501			436			83			3,960
Amounts reclassified from accumulated other comprehensive loss, net	26			—			—			1			64			91
Balances as of January 31, 2018	(12,136		)	1,030			1,646			122			(843		)	(10,181		)
Adoption of new accounting standards on February 1, 2018⁽¹⁾	89			93			(1,646		)	28			—			(1,436		)
Other comprehensive income (loss) before reclassifications, net	(2,093		)	272			—			(339		)	93			(2,067		)
Reclassifications to income, net⁽²⁾	2,055			—			—			49			38			2,142
Balances as of January 31, 2019	$	(12,085	)	$	1,395		$	—		$	(140	)	$	(712	)	$	(11,542	)

(1) Primarily relates to the adoption of ASU 2016-01 and ASU 2018-02.

(2) Includes a cumulative foreign currency translation loss of $2.0 billion, for which there was no related income taxes, upon sale of the majority stake in Walmart Brazil (see Note 13).

Accrued Liabilities (Tables)

12 Months Ended

Jan. 31, 2019

Accrued Liabilities [Abstract]

Schedule of accrued liabilities

The Company's accrued liabilities consist of the following as of January 31, 2019 and 2018:



	January 31,
(Amounts in millions)	2019		2018
Accrued wages and benefits⁽¹⁾	$	6,504	$	6,998
Self-insurance⁽²⁾	3,979		3,737
Accrued non-income taxes⁽³⁾	2,979		3,073
Deferred gift card revenue	1,932		2,017
Other⁽⁴⁾	6,765		6,297
Total accrued liabilities	$	22,159	$	22,122


(1)	Accrued wages and benefits include accrued wages, salaries, vacation, bonuses and other incentive plans.


(2)	Self-insurance consists of insurance-related liabilities, such as workers' compensation, general liability, auto liability, product liability and certain employee-related healthcare benefits.


(3)	Accrued non-income taxes include accrued payroll, value added, sales and miscellaneous other taxes.


(4)	Other accrued liabilities consist of various items such as maintenance, utilities, advertising, interest and legal contingencies.

Short-term Borrowings and Long-term Debt (Tables)

12 Months Ended

Jan. 31, 2019

Debt Instrument [Line Items]

Schedule of Line of Credit Facilities

These committed lines of credit are summarized in the following table:



	January 31, 2019						January 31, 2018
(Amounts in millions)	Available		Drawn		Undrawn		Available		Drawn		Undrawn
Five-year credit facility⁽¹⁾	$	5,000	$	—	$	5,000	$	5,000	$	—	$	5,000
364-day revolving credit facility⁽¹⁾	10,000		—		10,000		7,500		—		7,500
Total	$	15,000	$	—	$	15,000	$	12,500	$	—	$	12,500


(1)	In May 2018, the Company renewed and extended its existing five-year credit facility and its existing 364-day revolving credit facility, both of which are used to support its commercial paper program.

Schedule of Long-term Debt Instruments

The Company's long-term debt, which includes the fair value instruments further discussed in Note 8, consists of the following as of January 31, 2019 and 2018:



		January 31, 2019				January 31, 2018
(Amounts in millions)	Maturity Dates By Fiscal Year	Amount			Average Rate⁽¹⁾	Amount			Average Rate⁽¹⁾
Unsecured debt
Fixed	2020 - 2049	$	35,816		3.9%	$	24,540		3.9%
Variable	2020 - 2022	1,800			2.9%	800			4.1%
Total U.S. dollar denominated		37,616				25,340
Fixed	2023 - 2030	2,870			3.3%	3,101			3.3%
Variable		—				—
Total Euro denominated		2,870				3,101
Fixed	2031 - 2039	3,524			5.4%	3,801			5.4%
Variable		—				—
Total Sterling denominated		3,524				3,801
Fixed	2021 - 2028	1,651			0.4%	1,655			0.4%
Variable		—				—
Total Yen denominated		1,651				1,655
Total unsecured debt		45,661				33,897
Total other⁽²⁾		(265		)		(114		)
Total debt		45,396				33,783
Less amounts due within one year		(1,876		)		(3,738		)
Long-term debt		$	43,520			$	30,045


(1)	The average rate represents the weighted-average stated rate for each corresponding debt category, based on year-end balances and year-end interest rates. Interest costs are also impacted by certain derivatives described in Note 8.


(2)	Includes deferred loan costs, discounts, fair value hedges, foreign-held debt and secured debt. As of January 31, 2019 and 2018 the Company had secured debt in the amount of $8 million and $10 million, respectively, which was collateralized by property that had an aggregate carrying amount of $82 million and $101 million, respectively.

Schedule of Maturities of Long-term Debt

Annual maturities of long-term debt during the next five years and thereafter are as follows:



(Amounts in millions)	Annual
Fiscal Year	Maturities
2020	$	1,876
2021	5,347
2022	3,080
2023	2,844
2024	4,595
Thereafter	27,654
Total	$	45,396

Schedule of Fiscal Year 2019 and 2018 Debt Issuances

Information on long-term debt issued during fiscal 2019 to fund a portion of the purchase price for the Flipkart acquisition discussed in Note 13 and for general corporate purposes, is as follows:

(Amounts in millions)

Issue Date

Principal Amount

Maturity Date

Fixed vs. Floating

Interest Rate

Net Proceeds

June 27, 2018

750 USD

June 23, 2020

Floating

$

748

June 27, 2018

1,250 USD

June 23, 2020

Fixed

2.850%

1,247

June 27, 2018

750 USD

June 23, 2021

Floating

748

June 27, 2018

1,750 USD

June 23, 2021

Fixed

3.125%

1,745

June 27, 2018

2,750 USD

June 26, 2023

Fixed

3.400%

2,740

June 27, 2018

1,500 USD

June 26, 2025

Fixed

3.550%

1,490

June 27, 2018

2,750 USD

June 26, 2028

Fixed

3.700%

2,725

June 27, 2018

1,500 USD

June 28, 2038

Fixed

3.950%

1,473

June 27, 2018

3,000 USD

June 29, 2048

Fixed

4.050%

2,935

Various

21 USD

Various

21

Total

$

15,872

The June 2018 issuances are senior, unsecured notes which rank equally with all other senior, unsecured debt obligations of the Company, and are not convertible or exchangeable. These issuances do not contain any financial covenants and do not restrict the Company's ability to pay dividends or repurchase company stock.

During fiscal 2018, significant long-term debt issuances were as follows:

(Amounts in millions)

Issue Date

Principal Amount

Maturity Date

Fixed vs. Floating

Interest Rate

Net Proceeds

July 18, 2017

70,000 JPY

July 15, 2022

Fixed

0.183%

$

619

July 18, 2017

40,000 JPY

July 18, 2024

Fixed

0.298%

354

July 18, 2017

60,000 JPY

July 16, 2027

Fixed

0.520%

530

October 20, 2017

300 USD

October 9, 2019

Floating

299

October 20, 2017

1,200 USD

October 9, 2019

Fixed

1.750%

1,198

October 20, 2017

1,250 USD

December 15, 2020

Fixed

1.900%

1,245

October 20, 2017

1,250 USD

December 15, 2022

Fixed

2.350%

1,245

October 20, 2017

1,000 USD

December 15, 2024

Fixed

2.650%

996

October 20, 2017

1,000 USD

December 15, 2047

Fixed

3.625%

990

Total

$

7,476

Schedule of Fiscal 2019 and 2018 Debt Maturities

The following table provides details of debt repayments during fiscal 2019:



(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment
February 15, 2018	1,250 USD	Fixed	5.800%	$	1,250
April 11, 2018	1,250 USD	Fixed	1.125%	1,250
June 1, 2018	500 USD	Floating	Floating	500
December 15, 2018	724 USD	Fixed	1.950%	724
Various⁽¹⁾	60 USD	Various	Various	60
Total				$	3,784

(1) Includes repayments of smaller long-term debt as it matured in several non-U.S. operations.

During fiscal 2018, the following long-term debt matured and was repaid:



(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment ⁽²⁾
April 5, 2017	1,000 USD	Fixed	5.375%	$	1,000
April 21, 2017	500 USD	Fixed	1.000%	500
Various⁽¹⁾	289 USD	Various	Various	289
Total repayment of matured debt				1,789

December 15, 2018	1,000 USD	Fixed	1.950%	$	276
February 1, 2019	500 USD	Fixed	4.125%	136
July 8, 2020	1,500 USD	Fixed	3.625%	661
October 25, 2020	1,750 USD	Fixed	3.250%	553
April 15, 2021	1,000 USD	Fixed	4.250%	491
October 16, 2023	250 USD	Fixed	6.750%	98
April 5, 2027	750 USD	Fixed	5.875%	267
February 15, 2030	500 USD	Fixed	7.550%	412
September 4, 2035	2,500 USD	Fixed	5.250%	532
September 28, 2035	1,000 GBP	Fixed	5.250%	260
August 17, 2037	3,000 USD	Fixed	6.500%	1,700
April 15, 2038	2,000 USD	Fixed	6.200%	1,081
January 19, 2039	1,000 GBP	Fixed	4.875%	851
April 2, 2040	1,250 USD	Fixed	5.625%	499
July 9, 2040	750 USD	Fixed	4.875%	372
October 25, 2040	1,250 USD	Fixed	5.000%	731
April 15, 2041	2,000 USD	Fixed	5.625%	1,082
April 11, 2043	1,000 USD	Fixed	4.000%	291
October 2, 2043	750 USD	Fixed	4.750%	481
April 22, 2044	1,000 USD	Fixed	4.300%	498
Total repayment of extinguished debt				11,272
Total				$	13,061

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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+ Details

Fair Value Measurements (Tables)

12 Months Ended

Jan. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

Information for the cost basis, carrying value and fair value of the Company's investment in JD is as follows:



(Amounts in millions)	Cost Basis		Carrying Value as of January 31, 2018		Fair Value as of February 1, 2018			Fair Value as of January 31, 2019
Investment in JD measured using Level 1 inputs	$	1,901	$	3,547	$	3,547	⁽¹⁾	$	1,791
Investment in JD measured using Level 2 inputs	1,490		1,490		3,559		⁽²⁾	1,792
Total	$	3,391	$	5,037	$	7,106		$	3,583	⁽³⁾

(1) Fair value was already recognized on the balance sheet. Upon adoption of the new financial instrument standard on February 1, 2018, the excess of fair value over cost was reclassified from accumulated other comprehensive loss to retained earnings.

(2) Upon adoption of the new financial instrument standard on February 1, 2018, the excess of fair value over cost was recognized by increasing the carrying value of the asset and retained earnings.

(3) The decreases in fair value from February 1, 2018 to January 31, 2019 of $3.5 billion was recognized in net income and included in other gains and losses in the Company's Consolidated Statements of Income.

Notional amounts and fair values of derivatives

As of January 31, 2019 and January 31, 2018, the notional amounts and fair values of these derivatives were as follows:



	January 31, 2019					January 31, 2018
(Amounts in millions)	Notional Amount		Fair Value			Notional Amount		Fair Value
Receive fixed-rate, pay variable-rate interest rate swaps designated as fair value hedges	$	4,000	$	(78	)	$	4,000	$	(91	)
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as net investment hedges	2,250		334			2,250		208
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as cash flow hedges	4,173		(272		)	4,523		205
Total	$	10,423	$	(16	)	$	10,773	$	322

Carrying value and fair value of long-term debt

The carrying value and fair value of the Company's long-term debt as of January 31, 2019 and 2018, are as follows:



	January 31, 2019				January 31, 2018
(Amounts in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt, including amounts due within one year	$	45,396	$	49,570	$	33,783	$	38,766

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

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+ Details

Derivatives (Tables)

12 Months Ended

Jan. 31, 2019

Summary of Derivative Instruments [Abstract]

Balance Sheet Classification Of Financial Instruments

The Company's derivatives, as well as its nonderivative debt instruments designated and qualifying as net investment hedges, were classified as follows as of January 31, 2019 and 2018 in the Company's Consolidated Balance Sheets:



	January 31, 2019						January 31, 2018
(Amounts in millions)	Fair Value Hedges		Net Investment Hedges		Cash Flow Hedges		Fair Value Hedges		Net Investment Hedges		Cash Flow Hedges
Derivatives
Derivative assets:
Other long-term assets	$	—	$	334	$	78	$	—	$	208	$	300

Derivative liabilities:
Deferred income taxes and other	78		—		350		91		—		95

Nonderivative hedging instruments
Long-term debt	—		3,863		—		—		4,041		—

Taxes (Tables)

12 Months Ended

Jan. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of income before income taxes

The components of income before income taxes are as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018	2017
U.S.	15,875		10,722	15,680
Non-U.S.	(4,415	)	4,401	4,817
Total income before income taxes	11,460		15,123	20,497

Schedule of income tax provision

A summary of the provision for income taxes is as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019			2018			2017
Current:
U.S. federal	$	2,763		$	2,998		$	3,454
U.S. state and local	493			405			495
International	1,495			1,377			1,510
Total current tax provision	4,751			4,780			5,459
Deferred:
U.S. federal	(361		)	(22		)	1,054
U.S. state and local	(16		)	(12		)	51
International	(93		)	(146		)	(360		)
Total deferred tax expense (benefit)	(470		)	(180		)	745
Total provision for income taxes	$	4,281		$	4,600		$	6,204

Schedule of income tax rate

A reconciliation of the significant differences between the U.S. statutory tax rate and the effective income tax rate on pretax income from continuing operations is as follows:



	Fiscal Years Ended January 31,
	2019		2018		2017
U.S. statutory tax rate	21.0	%	33.8	%	35.0	%
U.S. state income taxes, net of federal income tax benefit	3.3	%	1.8	%	1.7	%
Impact of the Tax Act:
One-time transition tax	3.6	%	12.3	%	—	%
Deferred tax effects	(0.7	)%	(14.1	)%	—	%
Income taxed outside the U.S.	(3.5	)%	(6.3	)%	(4.5	)%
Disposition of Walmart Brazil	6.7	%	—	%	—	%
Valuation allowance	6.4	%	2.1	%	—	%
Net impact of repatriated international earnings	0.8	%	(0.1	)%	(1.0	)%
Federal tax credits	(1.2	)%	(0.9	)%	(0.6	)%
Other, net	1.0	%	1.8	%	(0.3	)%
Effective income tax rate	37.4	%	30.4	%	30.3	%

Schedule of deferred tax balances

The significant components of the Company's deferred tax account balances are as follows:



	January 31,
(Amounts in millions)	2019			2018
Deferred tax assets:
Loss and tax credit carryforwards	$	2,964		$	1,989
Accrued liabilities	2,135			2,482
Share-based compensation	245			217
Other	1,131			1,251
Total deferred tax assets	6,475			5,939
Valuation allowances	(2,448		)	(1,843		)
Deferred tax assets, net of valuation allowances	4,027			4,096
Deferred tax liabilities:
Property and equipment	4,175			3,954
Acquired intangibles	2,099			401
Inventory	1,354			1,153
Other	899			540
Total deferred tax liabilities	8,527			6,048
Net deferred tax liabilities	$	4,500		$	1,952

Schedule of deferred tax classification in the balance sheet

The deferred taxes noted above are classified as follows in the Company's Consolidated Balance Sheets:



	January 31,
(Amounts in millions)	2019		2018
Balance Sheet classification
Assets:
Other long-term assets	$	1,796	$	1,879

Liabilities:
Deferred income taxes and other	6,296		3,831

Net deferred tax liabilities	$	4,500	$	1,952

Reconciliation of unrecognized tax benefits from continuing operations

A reconciliation of unrecognized tax benefits from continuing operations is as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019			2018			2017
Unrecognized tax benefits, beginning of year	$	1,010		$	1,050		$	607
Increases related to prior year tax positions	620			130			388
Decreases related to prior year tax positions	(107		)	(254		)	(32		)
Increases related to current year tax positions	203			122			145
Settlements during the period	(390		)	(23		)	(46		)
Lapse in statutes of limitations	(31		)	(15		)	(12		)
Unrecognized tax benefits, end of year	$	1,305		$	1,010		$	1,050

Contingencies (Tables)

12 Months Ended

Jan. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of foreign corrupt practices act expenses

For the fiscal years ended January 31, 2019, 2018 and 2017, the Company incurred the following third-party expenses in connection with the FCPA investigation and related matters:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Ongoing inquiries and investigations	$	17	$	26	$	80
Global compliance program and organizational enhancements	13		14		19
Total	$	30	$	40	$	99

Commitments (Tables)

12 Months Ended

Jan. 31, 2019

Commitments Disclosure [Abstract]

Aggregate minimum annual rentals under non-cancelable leases

Aggregate minimum annual rentals as of January 31, 2019, under non-cancelable leases are as follows:



(Amounts in millions)
Fiscal Year	Operating Leases⁽¹⁾		Capital Lease and Financing Obligations
2020	$	1,856	$	917
2021	1,655		856
2022	1,420		794
2023	1,233		667
2024	1,063		593
Thereafter	6,891		6,069
Total minimum rentals	$	14,118	$	9,896
Less estimated executory costs			23
Net minimum lease payments			9,873
Financing obligation noncash gains and other			2,278
Less imputed interest			(4,739		)
Present value of minimum lease payments			$	7,412


(1)	Represents minimum contractual obligation for non-cancelable leases with initial or remaining terms greater than 12 months as of January 31, 2019.

Retirement-Related Benefits (Tables)

12 Months Ended

Jan. 31, 2019

Retirement Benefits [Abstract]

Schedule of contribution expense related to defined contribution plans

The following table summarizes the contribution expense related to the Company's defined contribution plans for fiscal 2019, 2018 and 2017:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Defined contribution plans:
U.S.	$	1,165	$	1,124	$	1,064
International	126		126		173
Total contribution expense for defined contribution plans	$	1,291	$	1,250	$	1,237

Restructuring (Tables)

12 Months Ended

Jan. 31, 2019

Restructuring and Related Activities [Abstract]

Schedule of restructuring and related costs

As a result, the Company recorded $1.2 billion in pre-tax restructuring charges in fiscal 2018 as follows:



	Fiscal Year Ended January 31, 2018
(Amounts in millions)	Asset Impairment		Severance Costs		Total
Walmart International	193		43		236
Sam's Club	596		69		665
Corporate and support	—		300		300
Total	$	789	$	412	$	1,201

Segments (Tables)

12 Months Ended

Jan. 31, 2019

Disaggregation of Revenue [Line Items]

Segment revenues and long-lived assets

Information for the Company's segments, as well as for Corporate and support, including the reconciliation to income before income taxes, is provided in the following table:



(Amounts in millions)	Walmart U.S.		Walmart International		Sam's Club		Corporate and support			Consolidated
Fiscal Year Ended January 31, 2019
Net sales	$	331,666	$	120,824	$	57,839	$	—		$	510,329
Operating income (loss)	17,386		4,883		1,520		(1,832		)	21,957
Interest, net										(2,129		)
Other gains and (losses)										(8,368		)
Income before income taxes										$	11,460
Total assets	$	105,114	$	97,066	$	12,893	$	4,222		$	219,295
Depreciation and amortization	6,201		2,590		639		1,248			10,678
Capital expenditures	6,034		2,661		450		1,199			10,344

Fiscal Year Ended January 31, 2018
Net sales	$	318,477	$	118,068	$	59,216	$	—		$	495,761
Operating income (loss)	16,995		5,229		915		(2,702		)	20,437
Interest, net										(2,178		)
Loss on extinguishment of debt										(3,136		)
Income before income taxes										$	15,123
Total assets	$	104,347	$	81,549	$	13,418	$	5,208		$	204,522
Depreciation and amortization	6,005		2,601		698		1,225			10,529
Capital expenditures	5,680		2,607		626		1,138			10,051

Fiscal Year Ended January 31, 2017
Net sales	$	307,833	$	116,119	$	57,365	$	—		$	481,317
Operating income (loss)	17,012		5,737		1,628		(1,613		)	22,764
Interest, net										(2,267		)
Income before income taxes										$	20,497
Total assets	$	104,262	$	74,508	$	14,125	$	5,930		$	198,825
Depreciation and amortization	5,598		2,629		712		1,141			10,080
Capital expenditures	6,090		2,697		639		1,193			10,619

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

Total revenues, consisting of net sales and membership and other income, and long-lived assets, consisting primarily of property and equipment, net, aggregated by the Company's U.S. and non-U.S. operations for fiscal 2019, 2018 and 2017, are as follows:



	Fiscal Years Ended January 31,
(Amounts in millions)	2019		2018		2017
Revenues
U.S. operations	$	392,265	$	380,580	$	367,784
Non-U.S. operations	122,140		119,763		118,089
Total revenues	$	514,405	$	500,343	$	485,873

Long-lived assets
U.S. operations	$	81,144	$	81,478	$	82,746
Non-U.S. operations	30,251		33,340		31,432
Total long-lived assets	$	111,395	$	114,818	$	114,178

Walmart U.S.

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]



(Amounts in millions)	Fiscal Year Ended January 31, 2019
Walmart U.S. net sales by merchandise category	Fiscal Year Ended January 31, 2019
Grocery	$	184,202
General merchandise	108,739
Health and wellness	35,788
Other categories	2,937
Total	$	331,666

Walmart International

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]



(Amounts in millions)	Fiscal Year Ended January 31, 2019
Walmart International net sales by market	Fiscal Year Ended January 31, 2019
Mexico and Central America	$	31,790
United Kingdom	30,547
Canada	18,613
China	10,702
Other	$	29,172
Total	$	120,824

Sam's Club

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]



(Amounts in millions)	Fiscal Year Ended January 31, 2019
Sam’s Club net sales by merchandise category	Fiscal Year Ended January 31, 2019
Grocery and consumables	$	33,708
Fuel, tobacco and other categories	12,110
Home and apparel	5,452
Technology, office and entertainment	3,388
Health and wellness	3,181
Total	$	57,839

Significant Event (Tables)

12 Months Ended

Jan. 31, 2019

Subsequent Events [Abstract]

Schedule of dividends payable

For fiscal 2020, the annual dividend will be paid in four quarterly installments of $0.53 per share, according to the following record and payable dates:



Record Date		Payable Date
March 15, 2019		April 1, 2019
May 10, 2019		June 3, 2019
August 9, 2019		September 3, 2019
December 6, 2019		January 2, 2020

Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Jan. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information



	Fiscal Year Ended January 31, 2019
(Amounts in millions, except per share data)	Q1		Q2			Q3		Q4		Total
Total revenues	$	122,690	$	128,028		$	124,894	$	138,793	$	514,405
Net sales	121,630		127,059			123,897		137,743		510,329
Cost of sales	91,707		95,571			93,116		104,907		385,301
Consolidated net income (loss)	2,276		(727		)	1,817		3,813		7,179
Consolidated net income (loss) attributable to Walmart	2,134		(861		)	1,710		3,687		6,670
Basic net income (loss) per common share attributable to Walmart	0.72		(0.29		)	0.58		1.27		2.28
Diluted net income (loss) per common share attributable to Walmart⁽¹⁾	0.72		(0.29		)	0.58		1.27		2.26

	Fiscal Year Ended January 31, 2018
	Q1		Q2			Q3		Q4		Total
Total revenues	$	117,542	$	123,355		$	123,179	$	136,267	$	500,343
Net sales	116,526		121,949			122,136		135,150		495,761
Cost of sales	87,688		91,521			91,547		102,640		373,396
Consolidated net income	3,152		3,104			1,904		2,363		10,523
Consolidated net income attributable to Walmart	3,039		2,899			1,749		2,175		9,862
Basic net income per common share attributable to Walmart	1.00		0.96			0.59		0.74		3.29
Diluted net income per common share attributable to Walmart⁽¹⁾	1.00		0.96			0.58		0.73		3.28


(1)	The sum of quarterly amounts may not agree to annual amount due to rounding and the impact of a decreasing amount of shares outstanding during the year.

Summary of Significant Accounting Policies (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment	$ 185,810	$ 185,154
Accumulated depreciation	(81,493)	(77,479)
Property and equipment, net	104,317	107,675
Land
Property, Plant and Equipment [Line Items]
Property and equipment	24,526	25,298
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and equipment	$ 101,006	101,155
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Fixtures and equipment
Property, Plant and Equipment [Line Items]
Property and equipment	$ 54,488	52,695
Fixtures and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	1 year
Fixtures and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	30 years
Transportation equipment
Property, Plant and Equipment [Line Items]
Property and equipment	$ 2,316	2,387
Transportation equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Transportation equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	15 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment	$ 3,474	$ 3,619

Summary of Significant Accounting Policies (Schedule of Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Goodwill [Roll Forward]
Goodwill	$ 18,242	$ 17,037
Changes in currency translation and other	(743)	996
Acquisitions	13,682	209
Goodwill	31,181	18,242
Walmart U.S.
Goodwill [Roll Forward]
Goodwill	2,445	2,236
Changes in currency translation and other	0	0
Acquisitions	107	209
Goodwill	2,552	2,445
Walmart International
Goodwill [Roll Forward]
Goodwill	15,484	14,488
Changes in currency translation and other	(743)	996
Acquisitions	13,575	0
Goodwill	28,316	15,484
Sam's Club
Goodwill [Roll Forward]
Goodwill	313	313
Changes in currency translation and other	0	0
Acquisitions	0	0
Goodwill	$ 313	$ 313

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Contract with Customer, Asset and Liability) (Details) $ in Millions	Jan. 31, 2019 USD ($)
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset, Net	$ 2,538
Contract with Customer, Liability	$ 1,932

Summary of Significant Accounting Policies (Details) $ in Millions	12 Months Ended
	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)	Apr. 30, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Customers per week, approximate	275,000,000
Number of stores	11,300
Banners	58
Number of countries	27
Amounts due from banks	$ 1,400	$ 1,600
Cash and cash equivalents	7,722	6,756
Cash Held in Foreign Countries	7,700	6,800
Nonrepatriable Cash and Cash Equivalents	2,800	1,400
Nonrepatriable Cash and Cash Equivalents, Flipkart	1,200
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	40
Depreciation and amortization of property and equipment, property under financing obligations and property under capital leases	10,700	10,500	$ 10,100
Advertising expense	$ 3,500	3,100	2,900
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Global intangible low-taxed income, 2018 through 2025	10.50%
Global intangible low-taxed income, 2025 Thereafter	13.125%
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 924
Deferred Revenue, Revenue Recognized	1,400	1,400	$ 1,400
Restricted cash recorded as noncurrent asset	34	$ 300
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 2,600
Scenario, Forecast [Member] \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption				$ 15,000
ASU 2016-02, Recognition of Operating Lease Assets and Liabilities				17,500
ASU 2016-02, Derecognition of Financial Obligation Assets and Liabilities				$ 3,000

Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Net Income Per Common Share [Line Items]
Consolidated net Income	$ 7,179	$ 10,523	$ 14,293
Consolidated net income attributable to noncontrolling interest	(509)	(661)	(650)
Consolidated net income attributable to Walmart	$ 6,670	$ 9,862	$ 13,643
Weighted-average common shares outstanding, basic	2,929	2,995	3,101
Dilutive impact of stock options and other share-based awards	16	15	11
Weighted-average common shares outstanding, diluted	2,945	3,010	3,112
Basic net income per common share attributable to Walmart	$ 2.28	$ 3.29	$ 4.40
Diluted net income per common share attributable to Walmart	$ 2.26	$ 3.28	$ 4.38

- Definition

The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

Shareholders' Equity (Schedule of Share-Based Compensation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 773	$ 626	$ 596
Restricted stock and performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	293	234	237
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	456	368	332
Other
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 24	$ 24	$ 27

Shareholders' Equity (Schedule of Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Restricted stock and performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, outstanding	8,799	8,558
Weighted-average grant-date fair value per share, outstanding	$ 75.39	$ 70.47
Shares, granted	3,600
Weighted-average grant-date fair value per share, granted	$ 84.94
Shares, vested/exercised	(2,448)
Weighted-average grant-date fair value per share, vested/exercised	$ 74.67
Shares, forfeited or expired	(911)
Weighted-average grant-date fair value per share, forfeited or expired	$ 68.24
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, outstanding	23,955	24,153
Weighted-average grant-date fair value per share, outstanding	$ 70.47	$ 66.69
Shares, granted	7,946
Weighted-average grant-date fair value per share, granted	$ 80.94
Shares, vested/exercised	(5,524)
Weighted-average grant-date fair value per share, vested/exercised	$ 69.52
Shares, forfeited or expired	(2,620)
Weighted-average grant-date fair value per share, forfeited or expired	$ 69.74

Shareholders' Equity (Schedule of Fair Value of Restricted Stock) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Restricted stock and performance share units
Additional information related to restricted stock and performance share awards and restricted stock units
Fair value	$ 183	$ 181	$ 149
Unrecognized compensation cost	$ 362	$ 291	$ 211
Weighted average remaining period to expense, years	1 year 1 month	1 year 2 months	1 year 3 months
Restricted stock units
Additional information related to restricted stock and performance share awards and restricted stock units
Fair value	$ 386	$ 344	$ 261
Unrecognized compensation cost	$ 1,002	$ 972	$ 986
Weighted average remaining period to expense, years	1 year 7 months	1 year 9 months	1 year 11 months

Shareholders' Equity (Schedule of Share Repurchases) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Share Repurchases [Abstract]
Total number of shares repurchased	79.5	104.9	119.9
Average price paid per share	$ 93.18	$ 79.11	$ 69.18
Total amount paid for share repurchases	$ 7,410	$ 8,296	$ 8,298

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017	Feb. 01, 2018	Oct. 09, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Par or Stated Value Per Share	$ 0.10	$ 0.10
Common Stock, Shares Authorized	11,000,000,000	11,000,000,000
Share-based compensation expense	$ 773	$ 626	$ 596
Income tax benefit recognized for share-based compensation	181	150	212
Number of shares registered under the Securities Act of 1933				260,000,000
Restricted stock and performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 293	$ 234	$ 237
Shares, granted	3,600,000
Restricted stock and performance share units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock and performance share awards vesting percentages	0.00%
Restricted stock, performance share awards and stock option plans vesting periods, in years	1 year
Restricted stock and performance share units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock and performance share awards vesting percentages	150.00%
Restricted stock, performance share awards and stock option plans vesting periods, in years	3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average discount for dividend yield	6.20%	7.20%	8.30%
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 456	$ 368	$ 332
Weighted average discount for dividend yield	7.20%	9.00%	9.00%
Restricted stock units vesting percentage, 3 years	50.00%
Restricted stock units vesting percentage, 5 years	50.00%
Shares, granted	7,946,000
Restricted stock units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, performance share awards and stock option plans vesting periods, in years	3 years
Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, performance share awards and stock option plans vesting periods, in years	5 years
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 24	$ 24	$ 27
Restricted stock, performance share awards and stock option plans vesting periods, in years	3 years
Two Thousand And Seventeen Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchase program, authorized amount					$ 20,000
Stock repurchase program, remaining authorized repurchase amount	$ 11,300

Accumulated Other Comprehensive Loss (Composition of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balances - beginning of period	$ (10,181)	$ (14,232)	$ (11,597)
Adoption of new accounting standard, effect of adoption, AOCI	(1,436)
Other comprehensive income (loss) before reclassifications	(2,067)	3,960	(2,670)
Amounts reclassified from accumulated other comprehensive income (loss)	2,142	91	35
Balances - end of period	(11,542)	(10,181)	(14,232)
Currency translation and other
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balances - beginning of period	(12,136)	(14,507)	(11,690)
Adoption of new accounting standard, effect of adoption, AOCI	89
Other comprehensive income (loss) before reclassifications	(2,093)	2,345	(2,817)
Amounts reclassified from accumulated other comprehensive income (loss)	2,055	26	0
Balances - end of period	(12,085)	(12,136)	(14,507)
Net investment hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balances - beginning of period	1,030	1,435	1,022
Adoption of new accounting standard, effect of adoption, AOCI	93
Other comprehensive income (loss) before reclassifications	272	(405)	413
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Balances - end of period	1,395	1,030	1,435
Unrealized gain on available-for-sale securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balances - beginning of period	1,646	145	0
Adoption of new accounting standard, effect of adoption, AOCI	(1,646)
Other comprehensive income (loss) before reclassifications	0	1,501	145
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Balances - end of period	0	1,646	145
Cash flow hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balances - beginning of period	122	(315)	(336)
Adoption of new accounting standard, effect of adoption, AOCI	28
Other comprehensive income (loss) before reclassifications	(339)	436	(22)
Amounts reclassified from accumulated other comprehensive income (loss)	49	1	43
Balances - end of period	(140)	122	(315)
Minimum pension liability
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balances - beginning of period	(843)	(990)	(593)
Adoption of new accounting standard, effect of adoption, AOCI	0
Other comprehensive income (loss) before reclassifications	93	83	(389)
Amounts reclassified from accumulated other comprehensive income (loss)	38	64	(8)
Balances - end of period	(712)	$ (843)	$ (990)
Walmart Brazil [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)	$ 2,000

Accrued Liabilities (Schedule of Accrued Liabilities) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Accrued Liabilities [Abstract]
Accrued wages and benefits	$ 6,504	$ 6,998
Self-insurance	3,979	3,737
Accrued non-income taxes	2,979	3,073
Deferred gift card revenue	1,932	2,017
Other	6,765	6,297
Accrued liabilities	$ 22,159	$ 22,122

Short-term Borrowings and Long-term Debt (Schedule of Lines of Credit) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Line of Credit Facility [Line Items]
Available	$ 15,000	$ 12,500
Five Year Facility [Member]
Line of Credit Facility [Line Items]
Available	5,000	5,000
Three Hundred And Sixty Four Day Facility [Member]
Line of Credit Facility [Line Items]
Available	10,000	7,500
Drawn Amount [Member]
Line of Credit Facility [Line Items]
Drawn	0	0
Drawn Amount [Member] \| Five Year Facility [Member]
Line of Credit Facility [Line Items]
Drawn	0	0
Drawn Amount [Member] \| Three Hundred And Sixty Four Day Facility [Member]
Line of Credit Facility [Line Items]
Drawn	0	0
Unused lines of Credit [Member]
Line of Credit Facility [Line Items]
Undrawn	15,000	12,500
Unused lines of Credit [Member] \| Five Year Facility [Member]
Line of Credit Facility [Line Items]
Undrawn	5,000	5,000
Unused lines of Credit [Member] \| Three Hundred And Sixty Four Day Facility [Member]
Line of Credit Facility [Line Items]
Undrawn	$ 10,000	$ 7,500

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Short-term Borrowings and Long-term Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Debt Instrument [Line Items]
Long-term debt	$ 45,396	$ 33,783
Less amounts due within one year	(1,876)	(3,738)
Long-term debt	43,520	30,045
Fixed
Debt Instrument [Line Items]
Long-term debt	$ 35,816	$ 24,540
Debt weighted average interest rate fixed	3.90%	3.90%
Variable
Debt Instrument [Line Items]
Long-term debt	$ 1,800	$ 800
Debt weighted average interest rate variable	2.90%	4.10%
Total U.S. dollar denominated
Debt Instrument [Line Items]
Long-term debt	$ 37,616	$ 25,340
Fixed
Debt Instrument [Line Items]
Long-term debt	$ 2,870	$ 3,101
Debt weighted average interest rate fixed	3.30%	3.30%
Variable
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 0
Total Euro denominated
Debt Instrument [Line Items]
Long-term debt	2,870	3,101
Fixed
Debt Instrument [Line Items]
Long-term debt	$ 3,524	$ 3,801
Debt weighted average interest rate fixed	5.40%	5.40%
Variable
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 0
Total Sterling denominated
Debt Instrument [Line Items]
Long-term debt	3,524	3,801
Fixed
Debt Instrument [Line Items]
Long-term debt	$ 1,651	$ 1,655
Debt weighted average interest rate fixed	0.40%	0.40%
Variable
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 0
Total Yen denominated
Debt Instrument [Line Items]
Long-term debt	1,651	1,655
Unsecured debt
Debt Instrument [Line Items]
Long-term debt	45,661	33,897
Total other debt
Debt Instrument [Line Items]
Deferred loan costs, discounts, fair value hedges, foreign-held debt and secured debt	$ (265)	$ (114)

Short-term Borrowings and Long-term Debt (Schedule of Debt Maturities) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Debt Instrument [Line Items]
Long-term debt due within one year	$ 1,876	$ 3,738
2020	5,347
2021	3,080
2022	2,844
2023	4,595
Thereafter	27,654
Long-term debt	$ 45,396	$ 33,783

Short-term Borrowings and Long-term Debt Short-term Borrowings and Long-term Debt (Schedule of Fiscal Year 2019 and 2018 Debt Issuances) (Details) ¥ in Millions				12 Months Ended
	Jun. 27, 2018 USD ($)	Oct. 20, 2017 USD ($)	Jul. 18, 2017 USD ($)	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)	Jul. 18, 2017 JPY (¥)
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Proceeds from Issuance of Long-term Debt				$ 15,872,000,000	$ 7,476,000,000	$ 137,000,000
Variable Rate Debt, Due 2020 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 750
Proceeds from Issuance of Long-term Debt	748,000,000
2.85% Debt Issuance, Due 2020 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	2.85%
Proceeds from Issuance of Long-term Debt	$ 1,247,000,000
Variable Date Debt, Due 2021 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	750
Proceeds from Issuance of Long-term Debt	748,000,000
3.125% Debt Issuance, Due 2021 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 1,750
Debt Instrument, Interest Rate, Stated Percentage	3.125%
Proceeds from Issuance of Long-term Debt	$ 1,745,000,000
3.400% Debt Issuance, Due 2023 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 2,750
Debt Instrument, Interest Rate, Stated Percentage	3.40%
Proceeds from Issuance of Long-term Debt	$ 2,740,000,000
3.550% Debt Issuance, Due 2025 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	3.55%
Proceeds from Issuance of Long-term Debt	$ 1,490,000,000
3.700% Debt Issuance, Due 2028 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 2,750
Debt Instrument, Interest Rate, Stated Percentage	3.70%
Proceeds from Issuance of Long-term Debt	$ 2,725,000,000
3.950% Debt Issuance, Due 2038 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Proceeds from Issuance of Long-term Debt	$ 1,473,000,000
4.050% Debt Issuance, Due 2048 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	$ 3,000
Debt Instrument, Interest Rate, Stated Percentage	4.05%
Proceeds from Issuance of Long-term Debt	$ 2,935,000,000
Variable Rate Debt (21 USD), Due Various [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount	21
Proceeds from Issuance of Long-term Debt	$ 21,000,000
0.183% Debt Issuance, Due 2022 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount \| ¥							¥ 70,000
Debt Instrument, Interest Rate, Stated Percentage							0.183%
Proceeds from Issuance of Long-term Debt			$ 619,000,000
0.298% Debt Issuance, Due 2024 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount \| ¥							¥ 40,000
Debt Instrument, Interest Rate, Stated Percentage							0.298%
Proceeds from Issuance of Long-term Debt			354,000,000
0.520% Debt Issuance, Due 2027 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount \| ¥							¥ 60,000
Debt Instrument, Interest Rate, Stated Percentage							0.52%
Proceeds from Issuance of Long-term Debt			$ 530,000,000
Variable Rate Debt, Due 2019 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount		$ 300,000,000
Proceeds from Issuance of Long-term Debt		299,000,000
1.75% Debt Issuance, Due 2019 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount		$ 1,200,000,000
Debt Instrument, Interest Rate, Stated Percentage		1.75%
Proceeds from Issuance of Long-term Debt		$ 1,198,000,000
1.900% Debt Issuance, Due 2020 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount		$ 1,250,000,000
Debt Instrument, Interest Rate, Stated Percentage		1.90%
Proceeds from Issuance of Long-term Debt		$ 1,245,000,000
2.350% Debt Issuance, Due 2022 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount		$ 1,250,000,000
Debt Instrument, Interest Rate, Stated Percentage		2.35%
Proceeds from Issuance of Long-term Debt		$ 1,245,000,000
2.650% Debt Issuance, Due 2024 [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount		$ 1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage		2.65%
Proceeds from Issuance of Long-term Debt		$ 996,000,000
3.625% Debt Issuance, Due 2047 [Domain] [Domain] \| Unsecured debt
Schedule of Fiscal Year 2019 Debt Issuances [Line Items]
Debt Instrument, Face Amount		$ 1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage		3.625%
Proceeds from Issuance of Long-term Debt		$ 990,000,000

Short-term Borrowings and Long-term Debt (Schedule of Fiscal Year 2019 and 2018 Debt Maturities) (Details) £ in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)	Dec. 15, 2018 USD ($)	Jun. 01, 2018 USD ($)	Apr. 11, 2018 USD ($)	Feb. 15, 2018 USD ($)	Jan. 25, 2018 USD ($)	Jan. 25, 2018 GBP (£)	Nov. 06, 2017 USD ($)	Apr. 21, 2017 USD ($)	Apr. 05, 2017 USD ($)
Debt Instrument [Line Items]
Payment for Debt Extinguishment or Debt Prepayment Cost	$ 0	$ 3,059	$ 0
Repayments of long-term debt	3,784	13,061	$ 2,055
Unsecured debt
Debt Instrument [Line Items]
Payment for Debt Extinguishment or Debt Prepayment Cost		11,272
Repayments of long-term debt	3,784	13,061
Repayments of Unsecured Debt		1,789
Unsecured debt \| 5.800% Fixed Rate Debt, Due 2018 [Member]
Debt Instrument [Line Items]
Principal amount							$ 1,250
Interest rate							5.80%
Repayments of long-term debt	1,250
Unsecured debt \| 1.125% Fixed Rate Debt, Due 2018 [Member]
Debt Instrument [Line Items]
Principal amount						$ 1,250
Interest rate						1.125%
Repayments of long-term debt	1,250
Unsecured debt \| Variable Rate Debt, Due 2018 [Domain]
Debt Instrument [Line Items]
Principal amount					$ 500
Repayments of long-term debt	500
Unsecured debt \| 1.950% Fixed Rate Debt, Due 2018 [Member]
Debt Instrument [Line Items]
Principal amount				$ 724
Interest rate				0.00%
Repayments of long-term debt	724
Unsecured debt \| Variable Rate Debt (60 USD), Due 2019 [Domain]
Debt Instrument [Line Items]
Principal amount	60
Repayments of long-term debt	$ 60
Unsecured debt \| 5.375% Fixed Rate Debt, Due 2017 [Member]
Debt Instrument [Line Items]
Principal amount												$ 1,000
Interest rate												5.375%
Repayments of long-term debt		1,000
Unsecured debt \| 1.000% Fixed Rate Debt (500 USD), Due 2017 [Domain]
Debt Instrument [Line Items]
Principal amount											$ 500
Interest rate											1.00%
Repayments of long-term debt		500
Unsecured debt \| Variable Rate Deb (289 USD), Due 2018 [Domain]
Debt Instrument [Line Items]
Principal amount		289
Repayments of long-term debt		289
Unsecured debt \| 1.950% Fixed Rate Debt, Due 2018 [Member]
Debt Instrument [Line Items]
Principal amount								$ 1,000
Interest rate								1.95%	1.95%
Repayments of long-term debt		276
Unsecured debt \| 4.125% Fixed Rate Debt, Due 2019 [Member]
Debt Instrument [Line Items]
Principal amount										$ 500
Interest rate										4.125%
Repayments of long-term debt		136
Unsecured debt \| 3.625% Fixed Rate Debt, Due 2020 [Member]
Debt Instrument [Line Items]
Principal amount										$ 1,500
Interest rate										3.625%
Repayments of long-term debt		661
Unsecured debt \| 3.250% Fixed Rate Debt, Due 2020 [Member]
Debt Instrument [Line Items]
Principal amount								$ 1,750
Interest rate								3.25%	3.25%
Repayments of long-term debt		553
Unsecured debt \| 4.250% Fixed Rate Debt, Due 2021 [Member]
Debt Instrument [Line Items]
Principal amount								$ 1,000
Interest rate								4.25%	4.25%
Repayments of long-term debt		491
Unsecured debt \| 6.750% Fixed Rate Date, Due 2023 [Member]
Debt Instrument [Line Items]
Principal amount								$ 250
Interest rate								6.75%	6.75%
Repayments of long-term debt		98
Unsecured debt \| 5.875% Fixed Rate Debt, Due 2027 [Member]
Debt Instrument [Line Items]
Principal amount								$ 750
Interest rate								5.875%	5.875%
Repayments of long-term debt		267
Unsecured debt \| 7.550% Fixed Rate Debt, Due 2030 [Member]
Debt Instrument [Line Items]
Principal amount								$ 500
Interest rate								7.55%	7.55%
Repayments of long-term debt		412
Unsecured debt \| 5.250% Fixed Rate Debt, Due 2035 [Member]
Debt Instrument [Line Items]
Principal amount								$ 2,500
Interest rate								5.25%	5.25%
Repayments of long-term debt		532
Unsecured debt \| 5.250% Fixed Rate Debt (GBP), Due 2035 [Member]
Debt Instrument [Line Items]
Principal amount \| £									£ 1,000
Interest rate								5.25%	5.25%
Repayments of long-term debt		260
Unsecured debt \| 6.500% Fixed Rate Debt, Due 2037 [Member]
Debt Instrument [Line Items]
Principal amount								$ 3,000
Interest rate								6.50%	6.50%
Repayments of long-term debt		1,700
Unsecured debt \| 6.200% Fixed Rate Debt, Due 2038 [Member]
Debt Instrument [Line Items]
Principal amount								$ 2,000
Interest rate								6.20%	6.20%
Repayments of long-term debt		1,081
Unsecured debt \| 4.875% Fixed Rate Debt, Due 2039 [Member]
Debt Instrument [Line Items]
Principal amount \| £									£ 1,000
Interest rate								4.875%	4.875%
Repayments of long-term debt		851
Unsecured debt \| 5.625% Fixed Rate Debt, Due 2040 [Member]
Debt Instrument [Line Items]
Principal amount								$ 1,250
Interest rate								5.625%	5.625%
Repayments of long-term debt		499
Unsecured debt \| 4.875% Fixed Rate Debt, Due 2040 [Member]
Debt Instrument [Line Items]
Principal amount								$ 750
Interest rate								4.875%	4.875%
Repayments of long-term debt		372
Unsecured debt \| 5.000% Fixed Rate Debt, Due 2040 [Member]
Debt Instrument [Line Items]
Principal amount								$ 1,250
Interest rate								5.00%	5.00%
Repayments of long-term debt		731
Unsecured debt \| 5.625% Fixed Rate Debt, Due 2041 [Member]
Debt Instrument [Line Items]
Principal amount								$ 2,000
Interest rate								5.625%	5.625%
Repayments of long-term debt		1,082
Unsecured debt \| 4.000% Fixed Rate Debt, Due 2043 [Member]
Debt Instrument [Line Items]
Principal amount										$ 1,000
Interest rate										4.00%
Repayments of long-term debt		291
Unsecured debt \| 4.750% Fixed Rate Debt, Due 2043 [Member]
Debt Instrument [Line Items]
Principal amount								$ 750
Interest rate								4.75%	4.75%
Repayments of long-term debt		481
Unsecured debt \| 4.300% Fixed Rate Debt, Due 2044 [Member]
Debt Instrument [Line Items]
Principal amount								$ 1,000
Interest rate								4.30%	4.30%
Repayments of long-term debt		$ 498

Short-term Borrowings and Long-term Debt (Details)	12 Months Ended
Short-term Borrowings and Long-term Debt (Details)	Jan. 31, 2019 USD ($) Financial_institution	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)
Debt Instrument [Line Items]
Short-term borrowings	$ 5,225,000,000	$ 5,257,000,000
Short-term debt, weighted average interest rate, at point in time	2.70%	1.50%
Number of financial institutions committing to lend funds under lines of credit \| Financial_institution	22
Available	$ 15,000,000,000	$ 12,500,000,000
Line of Credit Facility, Capacity Available for Trade Purchases	400,000,000	400,000,000
Secured long-term debt, noncurrent	8,000,000	10,000,000
Carrying value of property collateralizing long term debt	82,000,000	101,000,000
Payment for Debt Extinguishment or Debt Prepayment Cost	0	3,059,000,000	$ 0
Loss on extinguishment of debt	0	(3,136,000,000)	$ 0
Unsecured debt
Debt Instrument [Line Items]
Payment for Debt Extinguishment or Debt Prepayment Cost		11,272,000,000
Walmart International
Debt Instrument [Line Items]
Available	3,000,000,000	4,000,000,000
Line of Credit, Current	$ 200,000,000	0.0
Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	10.00%
Line of credit facility, commitment fee percentage	1.50%
Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	75.00%
Line of credit facility, commitment fee percentage	4.00%
Put Option [Member]
Debt Instrument [Line Items]
Long-term debt, gross		500,000,000
Fronted and Syndicated Lines of Credit [Member]
Debt Instrument [Line Items]
Available	$ 1,800,000,000	1,800,000,000
Line of Credit, Current	1,600,000,000	1,500,000,000
Five Year Facility [Member]
Debt Instrument [Line Items]
Available	$ 5,000,000,000	$ 5,000,000,000

Fair Value Measurements (Notional Amounts And Fair Values Of Interest Rate Swaps) (Details) - Recurring - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	$ 10,423	$ 10,773
Fair value, inputs, level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	(16)	322
Fair value hedging \| Floating-rate interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	4,000	4,000
Fair value hedging \| Floating-rate interest rate swaps \| Fair value, inputs, level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	(78)	(91)
Net investment hedging \| Cross-currency interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	2,250	2,250
Net investment hedging \| Cross-currency interest rate swaps \| Fair value, inputs, level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	334	208
Cash flow hedging \| Cross-currency interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	4,173	4,523
Cash flow hedging \| Cross-currency interest rate swaps \| Fair value, inputs, level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ (272)	$ 205

Fair Value Measurements (Carrying Value And Fair Value Of Long-Term Debt) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 45,396	$ 33,783
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	45,396	33,783
Fair Value [Member] \| Fair value, inputs, level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including amounts due within one year, Fair Value	$ 49,570	$ 38,766

Fair Value Measurements (Details) - USD ($) $ in Millions	12 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017	Aug. 01, 2018	Feb. 01, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in JD, cost basis	$ 3,391
Investment in JD, carrying value		$ 5,037
Investment in JD, fair value	3,583				$ 7,106
Unrealized Gain (Loss) on Investments	(3,516)	0	$ 0
(Gains) and losses for disposal of business operations	(4,850)	0	$ 0
Asset impairment charges		1,400
Walmart Brazil [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Disposal Group, Including Discontinued Operation, Assets				$ 3,300
Disposal Group, Including Discontinued Operation, Assets, Current				1,000
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current				1,600
Disposal Group, Including Discontinued Operation, Other Assets				$ 700
(Gains) and losses for disposal of business operations	(4,800)
JD [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized Gain (Loss) on Investments	(3,500)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in JD, cost basis	1,901
Investment in JD, carrying value		3,547
Investment in JD, fair value	1,791				3,547
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in JD, cost basis	1,490	$ 1,490
Investment in JD, fair value	$ 1,792				$ 3,559

Derivatives (Balance Sheet Classification Of Derivatives) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Fair value hedging \| Other assets and deferred charges
Derivative [Line Items]
Derivative assets	$ 0	$ 0
Fair value hedging \| Deferred income taxes and other
Derivative [Line Items]
Derivative liabilities	78	91
Net investment hedging \| Other assets and deferred charges
Derivative [Line Items]
Derivative assets	334	208
Net investment hedging \| Long-term debt
Derivative [Line Items]
Nonderivative hedging instruments	3,863	4,041
Cash flow hedging \| Other assets and deferred charges
Derivative [Line Items]
Derivative assets	78	300
Cash flow hedging \| Deferred income taxes and other
Derivative [Line Items]
Derivative liabilities	$ 350	$ 95

Derivatives (Details) $ in Millions, ¥ in Billions, £ in Billions	12 Months Ended
	Jan. 31, 2019 JPY (¥)	Jan. 31, 2019 GBP (£)	Jan. 31, 2018 JPY (¥)	Jan. 31, 2018 GBP (£)	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)
Derivative [Line Items]
Cash collateral held from counterparties					$ 220	$ 279
Threshold of derivative liability position requiring cash collateral					150
Cash collateral posted with counterparties					$ 0	$ 0
Designated as hedging instrument \| Net investment hedging \| Japan
Derivative [Line Items]
Notional amount of nonderivative instruments \| ¥	¥ 180.0		¥ 180.0
Designated as hedging instrument \| Net investment hedging \| United Kingdom
Derivative [Line Items]
Notional amount of nonderivative instruments \| £		£ 1.7		£ 1.7

Taxes (Schedule of Income Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Taxes [Line Items]
Income before income taxes, U.S.	$ 15,875	$ 10,722	$ 15,680
Income before income taxes, non-U.S.	(4,415)	4,401	4,817
Income before income taxes	$ 11,460	$ 15,123	$ 20,497

Taxes (Schedule of Income Tax Provision) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Taxes [Abstract]
U.S. federal	$ 2,763	$ 2,998	$ 3,454
U.S. state and local	493	405	495
International	1,495	1,377	1,510
Total current tax provision	4,751	4,780	5,459
U.S. federal	(361)	(22)	1,054
U.S. state and local	(16)	(12)	51
International	(93)	(146)	(360)
Total deferred tax expense (benefit)	(470)	(180)	745
Total provision for income taxes	$ 4,281	$ 4,600	$ 6,204

Taxes (Schedule of Income Tax Rate) (Details)	12 Months Ended
Taxes (Schedule of Income Tax Rate) (Details)	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Taxes [Abstract]
U.S. statutory tax rate	21.00%	33.80%	35.00%
U.S. state income taxes, net of federal income tax benefit	3.30%	1.80%	1.70%
Transition tax on accumulated foreign earnings	3.60%	12.30%	0.00%
Deferred tax benefit from change in tax rate	(0.70%)	(14.10%)	0.00%
Income taxed outside the U.S.	(3.50%)	(6.30%)	(4.50%)
Effective Income Tax Rate Reconciliation, Disposition, Percent	6.70%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	6.40%	2.10%	0.00%
Net impact of repatriated international earnings	0.80%	(0.10%)	(1.00%)
Effective Income Tax Rate Reconciliation, Tax Credit, Percent	(1.20%)	(0.90%)	(0.60%)
Other, net	1.00%	1.80%	(0.30%)
Effective income tax rate	37.40%	30.40%	30.30%

Taxes (Schedule of Deferred Tax Balances) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Income Tax Disclosure [Abstract]
Loss and tax credit carryforwards	$ 2,964	$ 1,989
Accrued liabilities	2,135	2,482
Share-based compensation	245	217
Other	1,131	1,251
Total deferred tax assets	6,475	5,939
Valuation allowances	(2,448)	(1,843)
Deferred tax assets, net of valuation allowance	4,027	4,096
Property and equipment	4,175	3,954
Deferred Tax Liabilities, Intangible Assets	2,099	401
Inventories	1,354	1,153
Other	899	540
Total deferred tax liabilities	8,527	6,048
Net deferred tax liabilities	$ 4,500	$ 1,952

Taxes (Schedule of Deferred Tax Classification in the Balance Sheet) (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Liabilities [Abstract]
Net deferred tax liabilities	$ 4,500	$ 1,952
Other assets and deferred charges
Assets
Other assets and deferred charges	1,796	1,879
Deferred income taxes and other
Liabilities [Abstract]
Deferred income taxes and other	$ 6,296	$ 3,831

Taxes (Reconciliation of Unrecognized Tax Benefits from Continuing Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Reconciliation of Unrecognized Tax Benefits
Unrecognized tax benefits, beginning of year	$ 1,010	$ 1,050	$ 607
Increases related to prior year tax positions	620	130	388
Decreases related to prior year tax positions	(107)	(254)	(32)
Increases related to current year tax positions	203	122	145
Settlements during the period	(390)	(23)	(46)
Lapse in statutes of limitations	(31)	(15)	(12)
Unrecognized tax benefits, end of year	$ 1,305	$ 1,010	$ 1,050

Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Taxes (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Taxes [Line Items]
Foreign Earnings Repatriated	$ 5,300
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 3,000
Federal statutory income tax rate, pre-Tax Cuts and Jobs Act		35.00%
U.S. statutory tax rate	21.00%	33.80%	35.00%
Tax Cuts and Jobs Act, Provisional Accounting, Deferred Tax Benefit	$ 75	$ 2,100
Net tax benefit recognized		207
Tax Cuts And Jobs Act Of 2017, Complete Accounting, Provisional Income Tax Benefit	$ 442
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Transition Tax on Accumulated Foreign Earnings, Percent	15.50%
Transition tax on accumulated foreign earnings, remaining earnings	8.00%
Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense	$ 413	1,900
Operating loss and capital loss carryforwards expiring by 2039	8,000
Valuation allowances	(2,448)	(1,843)
Unrecognized tax benefits	1,305	1,010	$ 1,050	$ 607
Unrecognized tax benefits that would impact effective tax rate	1,100	690
Unrecognized tax benefits, income tax penalties accrued		$ 12
Operating and capital loss carryforward [Member]
Taxes [Line Items]
Operating loss and capital loss carryforwards	12,200
Other Expense [Member]
Taxes [Line Items]
Foreign Earnings Repatriated	$ 40

Contingencies (Schedule of Foreign Corrupt Practices Act Expenses) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Foreign Corrupt Practices Act Expenses [Line Items]
Foreign corrupt practices act related expenses	$ 30	$ 40	$ 99
Inquiry and investigation expense
Foreign Corrupt Practices Act Expenses [Line Items]
Foreign corrupt practices act related expenses	17	26	80
Compliance programs and organizational enhancements
Foreign Corrupt Practices Act Expenses [Line Items]
Foreign corrupt practices act related expenses	$ 13	$ 14	$ 19

Contingencies (Details) $ in Millions	Jan. 31, 2019	Jan. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss		$ 283
Asda equal value lawsuit
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	30,000

Commitments (Aggregate Minimum Annual Rentals Under Non-Cancelable Leases) (Details) $ in Millions	Jan. 31, 2019 USD ($)
Commitments Disclosure [Abstract]
Operating leases, future minimum payments due, next twelve months	$ 1,856
Capital leases, future minimum payments due, next twelve months	917
Operating leases, future minimum payments, due in two years	1,655
Capital leases, future minimum payments due in two years	856
Operating leases, future minimum payments, due in three years	1,420
Capital leases, future minimum payments due in three years	794
Operating leases, future minimum payments, due in four years	1,233
Capital leases, future minimum payments due in four years	667
Operating leases, future minimum payments, due in five years	1,063
Capital leases, future minimum payments due in five years	593
Operating leases, future minimum payments, due thereafter	6,891
Capital leases, future minimum payments due thereafter	6,069
Operating leases, future minimum payments due	14,118
Capital leases, future minimum payments due	9,896
Capital leases, future minimum payments, executory costs	23
Capital leases, future minimum payments, present value of net minimum payments	9,873
Financing obligation noncash gains and other	2,278
Capital leases, future minimum payments, interest included in payments	(4,739)
Present value of minimum lease payments	$ 7,412

Commitments (Details) - USD ($) $ in Billions	12 Months Ended
Commitments (Details) - USD ($) $ in Billions	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Commitments Disclosure [Abstract]
Operating leases, rent expense	$ 3.0	$ 2.9	$ 2.6

Retirement-Related Benefits (Schedule of Contribution Expense Related to Defined Contribution Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Contribution expense from retirement plans [Line Items]
Total contribution expense for defined contribution and benefit plans	$ 1,291	$ 1,250	$ 1,237
Domestic Plan [Member]
Contribution expense from retirement plans [Line Items]
Defined contribution plan, cost	1,165	1,124	1,064
Foreign Plan [Member]
Contribution expense from retirement plans [Line Items]
Defined contribution plan, cost	$ 126	$ 126	$ 173

Retirement-Related Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Contribution expense from retirement plans [Line Items]
Defined contribution plan, employer matching contribution, percent of match	100.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay	6.00%
Vesting percentage of matching contribution to eligible associates	100.00%
Defined contribution plan, maximum annual contributions per employee, percent	50.00%
United Kingdom \| Deferred income taxes and other
Contribution expense from retirement plans [Line Items]
Assets for plan benefits, defined benefit plan	$ 326	$ 97
Japan \| Deferred income taxes and other
Contribution expense from retirement plans [Line Items]
Liability, defined benefit plan, noncurrent	$ 175	$ 184

Acquisitions, Disposals, and Related Items Acquisitions, Disposals, and Related Items (Details) $ in Millions, £ in Billions, R$ in Billions						12 Months Ended
	Aug. 18, 2018 USD ($)	Apr. 30, 2018 GBP (£)	Apr. 04, 2017 USD ($)	Sep. 09, 2016 USD ($)	Jun. 01, 2016 USD ($)	Jan. 31, 2019 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)	Aug. 01, 2018 USD ($)	Aug. 01, 2018 BRL (R$)	Sep. 19, 2016 USD ($)
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Business						$ (4,850)	$ 0	$ 0
Goodwill						31,181	18,242	17,037
Finite-Lived Intangible Asset, Useful Life	3 years
Proceeds from the disposal of certain operations						876	1,046	662
Payments to Acquire Available-for-sale Securities						0	0	1,901
Payments to Acquire Businesses, Net of Cash Acquired						14,656	375	2,463
Flipkart [Member]
Business Acquisition [Line Items]
Aggregate Ownership, Percent	81.00%
Diluted Ownership, Percent	77.00%
Payments to Acquire Businesses, Gross	$ 16,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	24,100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	2,200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	2,800
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	5,000
Goodwill	13,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	4,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	300
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	3,700
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	1,800
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	1,800
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value	$ 4,300
Jet.com [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill											$ 600
Goodwill											1,700
Payments to Acquire Businesses, Net of Cash Acquired				$ 2,400
Additional compensation as part of transaction											$ 800
Walmart Brazil [Member]
Business Acquisition [Line Items]
Ownership Sold, Percent									80.00%	80.00%
Disposal Group, Including Discontinued Operation, Consideration									$ 250
Disposal Group, Including Discontinued Operation, Assets									3,300
Disposal Group, Including Discontinued Operation, Liabilities									1,300
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current									700
Disposal Group, Including Discontinued Operation, Other Liabilities, Current									100
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities									500
Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)						2,000
Gain (Loss) on Disposition of Business						$ (4,800)
Guarantor Obligations, Current Carrying Value									$ 800
Guarantor Obligations, Maximum Exposure, Undiscounted \| R$										R$ 2.3
Equity Method Investment, Ownership Percentage									20.00%	20.00%
Suburbia [Member]
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Business							$ 400
Proceeds from the disposal of certain operations			$ 1,000
Gain (Loss) on Disposition of Business, Including Deferred Portion			$ 700
Gain Deferral Period			20 years
Yihaodian [Member]
Business Acquisition [Line Items]
Noncash or Part Noncash Divestiture, Type of Consideration Received					Class A ordinary shares
Noncash or Part Noncash Divestiture, Amount of Consideration Received					$ 1,500
Available for Sale Securities, Percent					5.00%
Gain (Loss) on Disposition of Assets								$ 535
Asda [Member]
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage		42.00%
Proceeds from the disposal of certain operations \| £		£ 3
JD.com [Member]
Business Acquisition [Line Items]
Diluted Ownership, Percent								10.00%
Payments to Acquire Available-for-sale Securities								$ 1,900
Noncash or Part Noncash Acquisition, Interest Acquired								5.00%

Restructuring (Schedule of Restructuring and Related Costs) (Details) $ in Millions	12 Months Ended
	Jan. 31, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 1,400
Restructuring charges	1,201
Walmart International
Restructuring Cost and Reserve [Line Items]
Restructuring charges	236
Sam's Club
Restructuring Cost and Reserve [Line Items]
Restructuring charges	665
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	300
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	789
Facility Closing [Member] \| Walmart International
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	193
Facility Closing [Member] \| Sam's Club
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	596
Facility Closing [Member] \| Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	412
Employee Severance [Member] \| Walmart International
Restructuring Cost and Reserve [Line Items]
Severance costs	43
Employee Severance [Member] \| Sam's Club
Restructuring Cost and Reserve [Line Items]
Severance costs	69
Employee Severance [Member] \| Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 300

Restructuring (Details) $ in Millions	12 Months Ended
Restructuring (Details) $ in Millions	Jan. 31, 2018 USD ($)
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 1,201

Segments Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 137,743	$ 123,897	$ 127,059	$ 121,630	$ 135,150	$ 122,136	$ 121,949	$ 116,526	$ 510,329	$ 495,761	$ 481,317
Operating Income (Loss)									21,957	20,437	22,764
Interest Income (Expense), Net									(2,129)	(2,178)	(2,267)
Gain (Loss) on Extinguishment of Debt									0	(3,136)	0
Nonoperating Income (Expense)									(8,368)	0	0
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest									11,460	15,123	20,497
Assets	219,295				204,522				219,295	204,522	198,825
Depreciation, Depletion and Amortization									10,678	10,529	10,080
Payments to Acquire Property, Plant, and Equipment									10,344	10,051	10,619
Walmart U.S.
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									331,666	318,477	307,833
Operating Income (Loss)									17,386	16,995	17,012
Assets	105,114				104,347				105,114	104,347	104,262
Depreciation, Depletion and Amortization									6,201	6,005	5,598
Payments to Acquire Property, Plant, and Equipment									6,034	5,680	6,090
Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									120,824	118,068	116,119
Operating Income (Loss)									4,883	5,229	5,737
Assets	97,066				81,549				97,066	81,549	74,508
Depreciation, Depletion and Amortization									2,590	2,601	2,629
Payments to Acquire Property, Plant, and Equipment									2,661	2,607	2,697
Sam's Club
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									57,839	59,216	57,365
Operating Income (Loss)									1,520	915	1,628
Assets	12,893				13,418				12,893	13,418	14,125
Depreciation, Depletion and Amortization									639	698	712
Payments to Acquire Property, Plant, and Equipment									450	626	639
Corporate and support
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									0	0	0
Operating Income (Loss)									(1,832)	(2,702)	(1,613)
Assets	$ 4,222				$ 5,208				4,222	5,208	5,930
Depreciation, Depletion and Amortization									1,248	1,225	1,141
Payments to Acquire Property, Plant, and Equipment									$ 1,199	$ 1,138	$ 1,193

Segments (Segment Revenues and Long-Lived Assets) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Segment Reporting Information [Line Items]
Total revenues	$ 138,793	$ 124,894	$ 128,028	$ 122,690	$ 136,267	$ 123,179	$ 123,355	$ 117,542	$ 514,405	$ 500,343	$ 485,873
Long-lived assets	111,395				114,818				111,395	114,818	114,178
United States
Segment Reporting Information [Line Items]
Total revenues									392,265	380,580	367,784
Long-lived assets	81,144				81,478				81,144	81,478	82,746
Walmart International
Segment Reporting Information [Line Items]
Total revenues									122,140	119,763	118,089
Long-lived assets	$ 30,251				$ 33,340				$ 30,251	$ 33,340	$ 31,432

Segments Revenue from Contract with Customer Excluding Assessed Tax, Walmart US (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 137,743	$ 123,897	$ 127,059	$ 121,630	$ 135,150	$ 122,136	$ 121,949	$ 116,526	$ 510,329	$ 495,761	$ 481,317
Walmart U.S.
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									331,666	$ 318,477	$ 307,833
Walmart U.S. \| eCommerceMember
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									15,700
Grocery [Member] \| Walmart U.S.
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									184,202
General Merchandise [Member] \| Walmart U.S.
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									108,739
Health and Wellness [Member] \| Walmart U.S.
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									35,788
Other Categories [Member] \| Walmart U.S.
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 2,937

Segments Revenue from Contract with Customer Excluding Assessed Tax, International (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 137,743	$ 123,897	$ 127,059	$ 121,630	$ 135,150	$ 122,136	$ 121,949	$ 116,526	$ 510,329	$ 495,761	$ 481,317
Walmart International
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									120,824	$ 118,068	$ 116,119
Walmart International \| eCommerceMember
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									6,700
Mexico and Central America [Member] \| Walmart International
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									31,790
United Kingdom \| Walmart International
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									30,547
CANADA \| Walmart International
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									18,613
CHINA \| Walmart International
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									10,702
Other [Member] \| Walmart International
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 29,172

Segments Revenue from Contract with Customer Excluding Assessed Tax, Sam's Club (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 137,743	$ 123,897	$ 127,059	$ 121,630	$ 135,150	$ 122,136	$ 121,949	$ 116,526	$ 510,329	$ 495,761	$ 481,317
Sam's Club
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									57,839	$ 59,216	$ 57,365
Sam's Club \| eCommerceMember
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									2,700
Grocery and consumables [Member] \| Sam's Club
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									33,708
Fuel, tobacco, and other categories [Member] \| Sam's Club
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									12,110
Home and apparel [Member] \| Sam's Club
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									5,452
Technology, offices, and entertainment [Member] \| Sam's Club
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									3,388
Health and Wellness [Member] \| Sam's Club
Revenue from External Customer [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 3,181

Segments (Segment Reporting Information) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 137,743	$ 123,897	$ 127,059	$ 121,630	$ 135,150	$ 122,136	$ 121,949	$ 116,526	$ 510,329	$ 495,761	$ 481,317
Walmart U.S.
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									331,666	318,477	307,833
Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									120,824	118,068	116,119
Sam's Club
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									57,839	59,216	57,365
Corporate and support
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									0	$ 0	$ 0
Mexico and Central America [Member] \| Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									31,790
United Kingdom \| Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									30,547
CANADA \| Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									18,613
CHINA \| Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									10,702
Other [Member] \| Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									29,172
eCommerceMember \| Walmart U.S.
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									15,700
eCommerceMember \| Walmart International
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									6,700
eCommerceMember \| Sam's Club
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 2,700

Significant Event (Details) - $ / shares		12 Months Ended
Significant Event (Details) - $ / shares	Feb. 19, 2019	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Subsequent Event [Line Items]
Dividends declared per common share		$ 2.08	$ 2.04	$ 2.00
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared per common share	$ 2.12
Common stock, quarterly dividends, per share, declared	$ 0.53

Quarterly Financial Data (unaudited) (Schedule of Quarterly Financial Information) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 138,793	$ 124,894	$ 128,028	$ 122,690	$ 136,267	$ 123,179	$ 123,355	$ 117,542	$ 514,405	$ 500,343	$ 485,873
Revenue from Contract with Customer, Excluding Assessed Tax	137,743	123,897	127,059	121,630	135,150	122,136	121,949	116,526	510,329	495,761	481,317
Cost of sales	104,907	93,116	95,571	91,707	102,640	91,547	91,521	87,688	385,301	373,396	361,256
Consolidated net income	3,813	1,817	(727)	2,276	2,363	1,904	3,104	3,152	7,179	10,523	14,293
Consolidated net income attributable to Walmart	$ 3,687	$ 1,710	$ (861)	$ 2,134	$ 2,175	$ 1,749	$ 2,899	$ 3,039	$ 6,670	$ 9,862	$ 13,643
Basic net income per common share attributable to Walmart	$ 1.27	$ 0.58	$ (0.29)	$ 0.72	$ 0.74	$ 0.59	$ 0.96	$ 1.00	$ 2.28	$ 3.29	$ 4.40
Diluted net income per common share attributable to Walmart	$ 1.27	$ 0.58	$ (0.29)	$ 0.72	$ 0.73	$ 0.58	$ 0.96	$ 1.00	$ 2.26	$ 3.28	$ 4.38

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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