Document And Entity Information - shares	3 Months Ended
Document And Entity Information - shares	Apr. 30, 2019	Jun. 05, 2019
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-Q
Document Period End Date	Apr. 30, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		2,854,722,137
Entity Small Business	false
Entity Emerging Growth Company	false

Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Revenues:
Net sales	$ 122,949	$ 121,630
Membership and other income	976	1,060
Total revenues	123,925	122,690
Costs and expenses:
Cost of sales	93,034	91,707
Operating, selling, general and administrative expenses	25,946	25,829
Operating income	4,945	5,154
Interest:
Debt	588	437
Finance, capital lease and financing obligations	85	93
Interest income	(48)	(43)
Interest, net	625	487
Other (gains) and losses	(837)	1,845
Income before income taxes	5,157	2,822
Provision for income taxes	1,251	546
Consolidated net income	3,906	2,276
Consolidated net income attributable to noncontrolling interest	(64)	(142)
Consolidated net income attributable to Walmart	$ 3,842	$ 2,134
Basic net income per common share:
Basic net income per common share attributable to Walmart (in dollars per share)	$ 1.34	$ 0.72
Diluted net income per common share:
Diluted net income per common share attributable to Walmart (in dollars per share)	$ 1.33	$ 0.72
Weighted-average common shares outstanding:
Basic (shares)	2,869	2,950
Diluted (shares)	2,886	2,967
Dividends declared per common share (in dollars per share)	$ 2.12	$ 2.08

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Consolidated net income	$ 3,906	$ 2,276
Consolidated net income attributable to noncontrolling interest	(64)	(142)
Consolidated net income attributable to Walmart	3,842	2,134
Other comprehensive income (loss), net of income taxes
Currency translation and other	507	1,465
Net investment hedges	108	68
Cash flow hedges	(131)	(77)
Minimum pension liability	1	43
Other comprehensive income (loss), net of income taxes	485	1,499
Other comprehensive (income) loss attributable to noncontrolling interest	(34)	(163)
Other comprehensive income (loss) attributable to Walmart	451	1,336
Comprehensive income, net of income taxes	4,391	3,775
Comprehensive (income) loss attributable to noncontrolling interest	(98)	(305)
Comprehensive income attributable to Walmart	$ 4,293	$ 3,470

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Apr. 30, 2019	Jan. 31, 2019	Apr. 30, 2018
Current assets:
Cash and cash equivalents	$ 9,255	$ 7,722	$ 7,885
Receivables, net	5,342	6,283	4,568
Inventories	44,751	44,269	43,303
Prepaid expenses and other	2,391	3,623	3,486
Total current assets	61,739	61,897	59,242
Property and equipment, net	104,604	104,317	107,622
Operating lease right-of-use assets, net	16,833	0	0
Finance lease right-of-use assets, net	3,804	0	0
Property under capital lease and financing obligations, net	0	7,078	7,178
Goodwill	31,416	31,181	18,850
Other long-term assets	16,148	14,822	12,035
Total assets	234,544	219,295	204,927
Current liabilities:
Short-term borrowings	4,828	5,225	7,762
Accounts payable	45,110	47,060	44,612
Dividends payable	4,551	0	4,607
Accrued liabilities	21,023	22,159	20,782
Accrued income taxes	729	428	718
Long-term debt due within one year	1,464	1,876	1,576
Operating lease obligations due within one year	1,748	0	0
Finance lease obligations due within one year	435	0	0
Capital lease and financing obligations due within one year	0	729	700
Total current liabilities	79,888	77,477	80,757
Long-term debt	47,425	43,520	29,477
Long-term operating lease obligations	15,719	0	0
Long-term finance lease obligations	3,810	0	0
Long-term capital lease and financing obligations	0	6,683	6,828
Deferred income taxes and other	12,792	11,981	9,541
Commitments and contingencies
Equity:
Common stock	286	288	294
Capital in excess of par value	2,734	2,965	2,557
Retained earnings	76,276	80,785	82,982
Accumulated other comprehensive loss	(11,091)	(11,542)	(10,281)
Total Walmart shareholders' equity	68,205	72,496	75,552
Noncontrolling interest	6,705	7,138	2,772
Total equity	74,910	79,634	78,324
Total liabilities and equity	$ 234,544	$ 219,295	$ 204,927

Condensed Consolidated Statement Of Shareholders' Equity (Unaudited) - 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
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards on February 1, 2019, net of income taxes	924			2,361	(1,436)	925	(1)
Consolidated net income	2,276			2,134		2,134	142
Other comprehensive income (loss), net of income taxes	1,499				1,336	1,336	163
Cash dividends declared ($2.12 per share)	(6,135)			(6,135)		(6,135)
Purchase of Company stock (in shares)		(5)
Purchase of Company stock	(508)	$ (1)	(15)	(492)		(508)
Cash dividend declared to noncontrolling interest	(489)						(489)
Other, in shares		4
Other	(65)	$ 0	(76)	7		(69)	4
Balances, in shares at Apr. 30, 2018		2,951
Balances at Apr. 30, 2018	78,324	$ 294	2,557	82,982	(10,281)	75,552	2,772
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards on February 1, 2019, net of income taxes	(300)			(266)	0	(266)	(34)
Consolidated net income	3,906			3,842		3,842	64
Other comprehensive income (loss), net of income taxes	485				451	451	34
Cash dividends declared ($2.12 per share)	(6,071)			(6,071)		(6,071)
Purchase of Company stock (in shares)		(21)
Purchase of Company stock	(2,087)	$ (2)	(73)	(2,012)		(2,087)
Cash dividend declared to noncontrolling interest	(481)						(481)
Other, in shares		5
Other	(176)	$ 0	(158)	(2)		(160)	(16)
Balances, in shares at Apr. 30, 2019		2,862
Balances at Apr. 30, 2019	$ 74,910	$ 286	$ 2,734	$ 76,276	$ (11,091)	$ 68,205	$ 6,705

Consolidated Statement Of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share)	$ 2.12	$ 2.08

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Cash flows from operating activities:
Consolidated net income	$ 3,906	$ 2,276
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	2,714	2,678
Unrealized (gains) and losses	(783)	1,845
Deferred income taxes	(124)	50
Other operating activities	(75)	(265)
Changes in certain assets and liabilities, net of effects of acquisitions:
Receivables, net	970	1,134
Inventories	(421)	547
Accounts payable	(1,854)	(1,770)
Accrued liabilities	(1,514)	(1,813)
Accrued income taxes	346	49
Net cash provided by operating activities	3,563	5,161
Cash flows from investing activities:
Payments for property and equipment	(2,205)	(1,818)
Proceeds from the disposal of property and equipment	42	198
Proceeds from the disposal of certain operations	833	0
Payments for business acquisitions, net of cash acquired	56	0
Other investing activities	251	(62)
Net cash used in investing activities	(1,135)	(1,682)
Cash flows from financing activities:
Net change in short-term borrowings	(399)	2,501
Proceeds from issuance of long-term debt	3,978	0
Repayments of long-term debt	(364)	(2,521)
Dividends paid	(1,520)	(1,533)
Purchase of Company stock	(2,135)	(539)
Dividends paid to noncontrolling interest	(96)	(66)
Other financing activities	(310)	(328)
Net cash used in financing activities	(846)	(2,486)
Effect of exchange rates on cash, cash equivalents and restricted cash	(46)	143
Net increase (decrease) in cash, cash equivalents and restricted cash	1,536	1,136
Cash, cash equivalents and restricted cash at beginning of year	7,756	7,014
Cash, cash equivalents and restricted cash at end of period	$ 9,292	$ 8,150

Summary of Significant Accounting Policies

3 Months Ended

Apr. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation

Accounting Policies

Basis of Presentation

The Condensed Consolidated Financial Statements of Walmart Inc. and its subsidiaries ("Walmart" or the "Company") and the accompanying notes included in this Quarterly Report on Form 10-Q are unaudited. In the opinion of management, all adjustments necessary for the fair presentation of the Condensed Consolidated Financial Statements have been included. Such adjustments are of a normal, recurring nature. The Condensed Consolidated Financial Statements, and the accompanying notes, are prepared in accordance with generally accepted accounting principles in the United States ("GAAP") and do not contain certain information included in the Company's Annual Report on Form 10-K for the fiscal year ended January 31, 2019 ("fiscal 2019"). Therefore, the interim Condensed Consolidated Financial Statements should be read in conjunction with that Annual Report on Form 10-K.

The Company's Consolidated Financial Statements are based on a fiscal year ending 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 April related to the operations consolidated using a lag that materially affected the Condensed Consolidated Financial Statements.

The Company's business is seasonal to a certain extent due to calendar events and national and religious holidays, as well as weather patterns. Historically, the Company's highest sales volume and operating income have occurred in the fiscal quarter ending January 31.

Restricted Cash

Restricted cash held outside of cash and cash equivalents was $37 million and $34 million as of April 30, 2019 and January 31, 2019, respectively, and was primarily recorded in prepaid expenses and other in the Condensed Consolidated Balance Sheets. Restricted cash held outside of cash and cash equivalents was $300 million as of April 30, 2018 and January 31, 2018, respectively, and was primarily recorded in other long-term assets in the Condensed Consolidated Balance Sheets.

Inventories

At April 30, 2019 and January 31, 2019, the Company's inventories valued at LIFO approximated those inventories as if they were valued at FIFO.

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. The Company adopted this ASU and related amendments as of February 1, 2019 under the modified retrospective approach and elected 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. For leases subject to index or rate adjustments, the most current index or rate adjustments were included in the measurement of operating lease obligations at adoption.

The adoption of this ASU and related amendments resulted in a $14.8 billion increase to total assets and a $15.1 billion increase to total liabilities as of April 30, 2019. The Company recognized $16.8 billion and $17.5 billion of operating lease right-of-use assets and operating lease obligations, respectively, and removed $2.2 billion and $1.7 billion, respectively, of assets and liabilities related to financial obligations connected with the construction of leased stores. Several other asset and liability line items in the Company's Condensed Consolidated Balance Sheet were also impacted by immaterial amounts. Additionally, the adoption resulted in a cumulative-effect adjustment to retained earnings of approximately $0.3 billion, net of tax, which primarily consisted of the recognition of impairment. The Company’s Condensed Consolidated Statements of Income and Condensed Consolidated Statements of Cash Flows were immaterially impacted. Updated accounting policies as a result of the adoption of this ASU are described below. Note 10 provides additional lease disclosures.

For any new or modified lease, the Company, at the inception of the contract, determines whether a contract is or contains a lease. The Company records right-of-use ("ROU") assets and lease obligations for its finance and operating leases, which are initially recognized based on the discounted future minimum lease payments over the term of the lease. As the rate implicit in the Company's leases is not easily determinable, the Company’s applicable incremental borrowing rate is used in calculating the present value of the sum of the lease payments.

Lease term is defined as the non-cancelable period of the lease plus any options to extend or terminate the lease when it is reasonably certain that the Company will exercise the option. The Company has elected not to recognize ROU asset and lease obligations for its short-term leases, which are defined as leases with an initial term of 12 months or less.

For a majority of all classes of underlying assets, the Company has elected to not separate lease from non-lease components. For leases in which the lease and non-lease components have been combined, the variable lease expense includes expenses such as common area maintenance, utilities, and repairs and maintenance.

Revenue Recognition

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)	April 30, 2019		January 31, 2019
Assets:
Receivables from transactions with customers, net	$	2,566	$	2,538

Liabilities:
Deferred gift card revenue	$	1,899	$	1,932

Derivatives

In fiscal 2020, the Company adopted ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The adoption of the standard had no current or historical impact on the Company's Condensed Consolidated Financial Statements. The Company continues to use qualitative methods to assess the effectiveness of its designated hedging relationships. Upon adopting ASU 2017-12, the Company modified its existing hedge documentation to use a quantitative method for assessing effectiveness when the hedge is subsequently determined to be ineffective under the qualitative method. There were no other significant changes to the Company's accounting policies for derivatives.

Recent Accounting Pronouncements

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

3 Months Ended

Apr. 30, 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 anti-dilutive and not included in the calculation of diluted net income per common share attributable to Walmart for the three months ended April 30, 2019 and 2018.

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:



	Three Months Ended April 30,
(Amounts in millions, except per share data)	2019			2018
Numerator
Consolidated net income	$	3,906		$	2,276
Consolidated net income attributable to noncontrolling interest	(64		)	(142		)
Consolidated net income attributable to Walmart	$	3,842		$	2,134

Denominator
Weighted-average common shares outstanding, basic	2,869			2,950
Dilutive impact of share-based awards	17			17
Weighted-average common shares outstanding, diluted	2,886			2,967

Net income per common share attributable to Walmart
Basic	$	1.34		$	0.72
Diluted	1.33			0.72

Accumulated Other Comprehensive Loss

3 Months Ended

Apr. 30, 2019

Other Comprehensive Income (Loss), Tax [Abstract]

Accumulated Other Comprehensive Loss

The following table provides the changes in the composition of total accumulated other comprehensive loss for the three months ended April 30, 2019:



(Amounts in millions and net of income taxes)	Currency Translation and Other			Unrealized Gain on Available-for-Sale Securities		Net Investment Hedges		Cash Flow Hedges			Minimum Pension Liability			Total
Balances as of February 1, 2019	$	(12,085	)	$	—	$	1,395	$	(140	)	$	(712	)	$	(11,542	)
Other comprehensive income (loss) before reclassifications, net⁽¹⁾	496			—		108		(145		)	(7		)	452
Reclassifications to income, net⁽¹⁾	(23		)	—		—		14			8			(1		)
Balances as of April 30, 2019	$	(11,612	)	$	—	$	1,503	$	(271	)	$	(711	)	$	(11,091	)

(1) Income tax impact is immaterial

The following table provides the changes in the composition of total accumulated other comprehensive loss for the three months ended April 30, 2018:



(Amounts in millions and net of income taxes)	Currency Translation and Other			Unrealized Gain on Available-for-Sale Securities			Net Investment Hedges		Cash Flow Hedges			Minimum Pension Liability			Total
Balances as of February 1, 2018	$	(12,136	)	$	1,646		$	1,030	$	122		$	(843	)	$	(10,181	)
Adoption of new accounting standards on February 1, 2018, net^{(1) (2)}	89			(1,646		)	93		28			—			(1,436		)
Other comprehensive income (loss) before reclassifications, net⁽¹⁾	1,302			—			68		(86		)	32			1,316
Reclassifications to income, net⁽¹⁾	—			—			—		9			11			20
Balances as of April 30, 2018	$	(10,745	)	$	—		$	1,191	$	73		$	(800	)	$	(10,281	)

(1) Income tax impact is immaterial

(2) Primarily relates to the adoption of ASU 2016-01, Financial Instruments–Overall and ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

Amounts reclassified from accumulated other comprehensive loss to net income for derivative instruments are recorded in interest, net, in the Company's Condensed Consolidated Statements of Income. Amounts reclassified from accumulated other comprehensive loss to net income 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 Condensed Consolidated Statements of Income.

Long-term Debt

3 Months Ended

Apr. 30, 2019

Long-term Debt, by Current and Noncurrent [Abstract]

Long-term debt

Long-term Debt

The following table provides the changes in the Company's long-term debt for the three months ended April 30, 2019:



(Amounts in millions)	Long-term debt due within one year			Long-term debt			Total
Balances as of February 1, 2019	$	1,876		$	43,520		$	45,396
Proceeds from issuance of long-term debt	—			3,978			3,978
Repayments of long-term debt	(364		)	—			(364		)
Other	(48		)	(73		)	(121		)
Balances as of April 30, 2019	$	1,464		$	47,425		$	48,889

Debt Issuances

Information on long-term debt issued during the three months ended April 30, 2019 for general corporate purposes is as follows:

(Amounts in millions)

Issue Date

Principal Amount

Maturity Date

Fixed vs. Floating

Interest Rate

Net Proceeds

April 23, 2019

1,500 USD

July 8, 2024

Fixed

2.850%

$

1,493

April 23, 2019

1,250 USD

July 8, 2026

Fixed

3.050%

1,242

April 23, 2019

1,250 USD

July 8, 2029

Fixed

3.250%

1,243

Total

$

3,978

These 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.

Maturities

The following table provides details of debt repayments during the three months ended April 30, 2019:



(Amounts in millions)
Maturity Date	Original Amount	Fixed vs. Floating	Interest Rate	Repayment
February 1, 2019	500 USD	Fixed	4.125%	$	364
Total repayment of matured debt				$	364

Fair Value Measurements

3 Months Ended

Apr. 30, 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 has equity investments, primarily its investment in JD.com, Inc. ("JD"), measured at fair value on a recurring basis included in other long-term assets in the accompanying Condensed Consolidated Balance Sheet as follows:


•	The purchased portion of the investment in JD measured using Level 1 inputs, and


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

Information for the fair value of the Company's investment in JD is as follows:



(Amounts in millions)	Fair Value as of April 30, 2019		Fair Value as of January 31, 2019
Investment in JD measured using Level 1 inputs	$	2,181	$	1,791
Investment in JD measured using Level 2 inputs	2,185		1,792
Total	$	4,366	$	3,583

The changes in fair value for the Company's investment in JD is included in other gains and losses in the Company's Condensed Consolidated Statements of Income.

The Company also holds derivative instruments. 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 yield and foreign currency forward curves. As of April 30, 2019 and January 31, 2019, the notional amounts and fair values of these derivatives were as follows:



	April 30, 2019					January 31, 2019
(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	$	(42	)	$	4,000	$	(78	)
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as net investment hedges	2,250		392			2,250		334
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as cash flow hedges	4,090		(408		)	4,173		(272		)
Total	$	10,340	$	(58	)	$	10,423	$	(16	)

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, fair value measurements on a nonrecurring basis are required as a result of impairment charges or business acquisitions. The Company did not have any material assets or liabilities subject to nonrecurring fair value measurements as of April 30, 2019 or January 31, 2019, respectively.

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 April 30, 2019 and January 31, 2019, are as follows:



	April 30, 2019				January 31, 2019
(Amounts in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt, including amounts due within one year	$	48,889	$	53,707	$	45,396	$	49,570

- 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

Derivative Financial Instruments

3 Months Ended

Apr. 30, 2019

Summary of Derivative Instruments [Abstract]

Derivative financial instruments

Derivative Financial Instruments

In connection with various derivative agreements, including master netting arrangements, the Company held cash collateral from counterparties of $209 million and $220 million at April 30, 2019 and January 31, 2019, 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 at April 30, 2019 or January 31, 2019, respectively.

At April 30, 2019 and January 31, 2019, 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 at April 30, 2019 and January 31, 2019, 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 derivative instruments, as well as its nonderivative debt instruments designated and qualifying as net investment hedges, were classified as follows in the Company's Condensed Consolidated Balance Sheets:



	April 30, 2019						January 31, 2019
(Amounts in millions)	Fair Value Instruments		Net Investment Instruments		Cash Flow Instruments		Fair Value Instruments		Net Investment Instruments		Cash Flow Instruments
Derivative instruments
Derivative assets:
Other long-term assets	$	—	$	392	$	41	$	—	$	334	$	78

Derivative liabilities:
Deferred income taxes and other	42		—		449		78		—		350

Nonderivative hedging instruments
Long-term debt	—		3,794		—		—		3,863		—

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.

Contingencies

3 Months Ended

Apr. 30, 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 Condensed 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 over 30,000 equal value ("Equal Value") claims that began in 2008 and 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.

In March 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. In July 2015, the Employment Tribunal denied Asda's requests. Following additional proceedings, in June 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. In October 2018, claimants appealed this ruling to the Court of Appeals and in January 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, in October 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. In August 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 and a hearing before the Court of Appeals on the comparability findings was held in October 2018. The Court of Appeals upheld the Employment Tribunal’s findings. Asda sought permission to appeal the Court of Appeals decision to the Supreme Court on February 27, 2019 and is awaiting a decision on its application.

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 engaged outside counsel from a number of law firms and other advisors who assisted in the investigation of these matters.

The Company also conducted a voluntary global review of its policies, practices and internal controls for anti-corruption compliance and, as part of that review, strengthened and enhanced 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 identified or were made aware of additional allegations regarding potential violations of the FCPA. When such allegations were reported or identified, the Audit Committee and the Company, together with their third-party advisors, conducted inquiries and investigations. Inquiries or investigations regarding allegations of potential FCPA violations were conducted 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 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"). While the Company believes the final resolution of these matters is nearing a conclusion, 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.

Existing lawsuits relating to the allegations have been resolved, but 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 or lawsuits 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. The Company expects that there will be on-going media and governmental interest, including additional news articles 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 and in conducting the investigations. These costs will be expensed as incurred. For the three months ended April 30, 2019 and 2018, the Company incurred the following third-party expenses in connection with the FCPA investigation and related matters:



	Three Months Ended April 30,
(Amounts in millions)	2019		2018
Ongoing inquiries and investigations	$	2	$	4
Global compliance program and organizational enhancements	2		3
Total	$	4	$	7

The Company does not presently believe that these matters, including 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.

Disposals, Acquisitions and Related Items

3 Months Ended

Apr. 30, 2019

Business Combinations [Abstract]

Disposals, acquisitions and related items

Disposals, Acquisitions and Related Items

The following disposals, acquisitions and related items pertain to the Company's Walmart International segment. Other immaterial transactions have also occurred or have 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.

As a result, the Company recorded a pre-tax net loss of $4.8 billion during the second quarter of fiscal 2019 in other gains and losses in the Company's Condensed 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 Condensed Consolidated Balance Sheets. The Company indemnified 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 using the equity method of accounting. This equity method investment was determined to have no fair value and continues to have no carrying value.

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 $13.5 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.

Asda

In April 2019, the Company announced the termination of a previously announced merger agreement that would have provided for the combination of J Sainsbury plc and Asda Group Limited, the Company's U.K. subsidiary. As the proposed transaction had not yet met the held for sale criteria, the announcement of its termination had no impact on the Company's Condensed Consolidated Financial Statements.

Segments

3 Months Ended

Apr. 30, 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 until the sale of the majority stake discussed in Note 8. 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. When the measurement of a segment changes, previous period amounts and balances are reclassified to be comparable to the current period's presentation.

Net sales by segment are as follows:



	Three Months Ended April 30,
(Amounts in millions)	2019		2018
Net sales:
Walmart U.S.	$	80,344	$	77,748
Walmart International	28,775		30,260
Sam's Club	13,830		13,622
Net sales	$	122,949	$	121,630

Operating income by segment, as well as operating loss for corporate and support, interest, net and other gains and losses are as follows:



	Three Months Ended April 30,
(Amounts in millions)	2019			2018
Operating income (loss):
Walmart U.S.	$	4,142		$	3,927
Walmart International	738			1,265
Sam's Club	451			325
Corporate and support	(386		)	(363		)
Operating income	4,945			5,154
Interest, net	625			487
Other (gains) and losses	(837		)	1,845
Income before income taxes	$	5,157		$	2,822

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)	Three Months Ended April 30,
Walmart U.S. net sales by merchandise category	2019		2018
Grocery	$	45,404	$	43,860
General merchandise	24,607		24,174
Health and wellness	9,518		9,128
Other categories	815		586
Total	$	80,344	$	77,748

Of Walmart U.S.'s total net sales, approximately $4.3 billion and $3.2 billion related to eCommerce for the three months ended April 30, 2019 and 2018, respectively.



(Amounts in millions)	Three Months Ended April 30,
Walmart International net sales by market	2019		2018
Mexico and Central America	$	7,837	$	7,684
United Kingdom	7,077		7,515
Canada	4,122		4,254
China	3,063		3,205
Other	6,676		7,602
Total	$	28,775	$	30,260

Of International's total net sales, approximately $2.5 billion and $1.0 billion related to eCommerce for the three months ended April 30, 2019 and 2018, respectively.



(Amounts in millions)	Three Months Ended April 30,
Sam’s Club net sales by merchandise category	2019		2018
Grocery and consumables	$	8,373	$	8,012
Fuel, tobacco and other categories	2,777		2,919
Home and apparel	1,178		1,202
Health and wellness	827		801
Technology, office and entertainment	675		688
Total	$	13,830	$	13,622

Of Sam's Club's total net sales, approximately $0.7 billion and $0.6 billion related to eCommerce for the three months ended April 30, 2019 and 2018, respectively.

Leases

3 Months Ended

Apr. 30, 2019

Leases [Abstract]

Leases of Lessee Disclosure [Text Block]

Leases

The Company leases certain retail locations, distribution and fulfillment centers, warehouses, office spaces, land and equipment throughout the U.S. and internationally.

The Company's lease cost consists of the following:



(Amounts in millions)	Three Months Ended April 30, 2019
Operating lease cost	$	636
Finance lease cost
Amortization of right-of-use assets	111
Interest on lease obligations	77
Variable lease cost	167

Other lease information is as follows:



(Dollar amounts in millions)	Three Months Ended April 30, 2019
Cash paid for amounts included in measurement of lease obligations:
Operating cash flows from operating leases	$	639
Operating cash flows from finance leases	49
Financing cash flows from finance leases	134
Assets obtained in exchange for operating lease obligations	189
Assets obtained in exchange for finance lease obligations	95
Weighted-average remaining lease term - operating leases	15.8 years
Weighted-average remaining lease term - finance leases	14.4 years
Weighted-average discount rate - operating leases	5.3		%
Weighted-average discount rate - finance leases	9.5		%

The aggregate annual lease obligations at April 30, 2019 are as follows:



(Amounts in millions)
Fiscal Year	Operating Leases			Finance Leases
Remainder of 2020	$	1,819		$	533
2021	2,346			676
2022	2,105			621
2023	1,903			506
2024	1,718			447
Thereafter	15,699			5,367
Total undiscounted lease obligations	25,590			8,150
Less imputed interest	(8,123		)	(3,905		)
Net lease obligations	$	17,467		$	4,245

Upon adoption of ASU 2016-02, Leases (Topic 842), the Company's aggregate annual lease obligations includes leases with reasonably assured renewals. The aggregate minimum annual lease rentals as of January 31, 2019 for the remaining contractual term of non-cancelable leases under ASC 840 were 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.

Accounting Policies Summary of Significant Accounting Policies (Policies)

3 Months Ended

Apr. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation and Significant Accounting Policies [Text Block]

Basis of Presentation

The Condensed Consolidated Financial Statements of Walmart Inc. and its subsidiaries ("Walmart" or the "Company") and the accompanying notes included in this Quarterly Report on Form 10-Q are unaudited. In the opinion of management, all adjustments necessary for the fair presentation of the Condensed Consolidated Financial Statements have been included. Such adjustments are of a normal, recurring nature. The Condensed Consolidated Financial Statements, and the accompanying notes, are prepared in accordance with generally accepted accounting principles in the United States ("GAAP") and do not contain certain information included in the Company's Annual Report on Form 10-K for the fiscal year ended January 31, 2019 ("fiscal 2019"). Therefore, the interim Condensed Consolidated Financial Statements should be read in conjunction with that Annual Report on Form 10-K.

The Company's Consolidated Financial Statements are based on a fiscal year ending 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 April related to the operations consolidated using a lag that materially affected the Condensed Consolidated Financial Statements.

The Company's business is seasonal to a certain extent due to calendar events and national and religious holidays, as well as weather patterns. Historically, the Company's highest sales volume and operating income have occurred in the fiscal quarter ending January 31.

Lessee, Leases [Policy Text Block]

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. The Company adopted this ASU and related amendments as of February 1, 2019 under the modified retrospective approach and elected 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. For leases subject to index or rate adjustments, the most current index or rate adjustments were included in the measurement of operating lease obligations at adoption.

The adoption of this ASU and related amendments resulted in a $14.8 billion increase to total assets and a $15.1 billion increase to total liabilities as of April 30, 2019. The Company recognized $16.8 billion and $17.5 billion of operating lease right-of-use assets and operating lease obligations, respectively, and removed $2.2 billion and $1.7 billion, respectively, of assets and liabilities related to financial obligations connected with the construction of leased stores. Several other asset and liability line items in the Company's Condensed Consolidated Balance Sheet were also impacted by immaterial amounts. Additionally, the adoption resulted in a cumulative-effect adjustment to retained earnings of approximately $0.3 billion, net of tax, which primarily consisted of the recognition of impairment. The Company’s Condensed Consolidated Statements of Income and Condensed Consolidated Statements of Cash Flows were immaterially impacted. Updated accounting policies as a result of the adoption of this ASU are described below. Note 10 provides additional lease disclosures.

For any new or modified lease, the Company, at the inception of the contract, determines whether a contract is or contains a lease. The Company records right-of-use ("ROU") assets and lease obligations for its finance and operating leases, which are initially recognized based on the discounted future minimum lease payments over the term of the lease. As the rate implicit in the Company's leases is not easily determinable, the Company’s applicable incremental borrowing rate is used in calculating the present value of the sum of the lease payments.

Lease term is defined as the non-cancelable period of the lease plus any options to extend or terminate the lease when it is reasonably certain that the Company will exercise the option. The Company has elected not to recognize ROU asset and lease obligations for its short-term leases, which are defined as leases with an initial term of 12 months or less.

For a majority of all classes of underlying assets, the Company has elected to not separate lease from non-lease components. For leases in which the lease and non-lease components have been combined, the variable lease expense includes expenses such as common area maintenance, utilities, and repairs and maintenance.

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

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)	April 30, 2019		January 31, 2019
Assets:
Receivables from transactions with customers, net	$	2,566	$	2,538

Liabilities:
Deferred gift card revenue	$	1,899	$	1,932

New accounting pronouncements, policy

Recent Accounting Pronouncements

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.

Accounting Policies Summary of Significant Accounting Policies (Tables)

3 Months Ended

Apr. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

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)	April 30, 2019		January 31, 2019
Assets:
Receivables from transactions with customers, net	$	2,566	$	2,538

Liabilities:
Deferred gift card revenue	$	1,899	$	1,932

Net Income Per Common Share (Tables)

3 Months Ended

Apr. 30, 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:



	Three Months Ended April 30,
(Amounts in millions, except per share data)	2019			2018
Numerator
Consolidated net income	$	3,906		$	2,276
Consolidated net income attributable to noncontrolling interest	(64		)	(142		)
Consolidated net income attributable to Walmart	$	3,842		$	2,134

Denominator
Weighted-average common shares outstanding, basic	2,869			2,950
Dilutive impact of share-based awards	17			17
Weighted-average common shares outstanding, diluted	2,886			2,967

Net income per common share attributable to Walmart
Basic	$	1.34		$	0.72
Diluted	1.33			0.72

Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Apr. 30, 2019

Other Comprehensive Income (Loss), Tax [Abstract]

Composition of accumulated other comprehensive loss

The following table provides the changes in the composition of total accumulated other comprehensive loss for the three months ended April 30, 2019:



(Amounts in millions and net of income taxes)	Currency Translation and Other			Unrealized Gain on Available-for-Sale Securities		Net Investment Hedges		Cash Flow Hedges			Minimum Pension Liability			Total
Balances as of February 1, 2019	$	(12,085	)	$	—	$	1,395	$	(140	)	$	(712	)	$	(11,542	)
Other comprehensive income (loss) before reclassifications, net⁽¹⁾	496			—		108		(145		)	(7		)	452
Reclassifications to income, net⁽¹⁾	(23		)	—		—		14			8			(1		)
Balances as of April 30, 2019	$	(11,612	)	$	—	$	1,503	$	(271	)	$	(711	)	$	(11,091	)

(1) Income tax impact is immaterial

The following table provides the changes in the composition of total accumulated other comprehensive loss for the three months ended April 30, 2018:



(Amounts in millions and net of income taxes)	Currency Translation and Other			Unrealized Gain on Available-for-Sale Securities			Net Investment Hedges		Cash Flow Hedges			Minimum Pension Liability			Total
Balances as of February 1, 2018	$	(12,136	)	$	1,646		$	1,030	$	122		$	(843	)	$	(10,181	)
Adoption of new accounting standards on February 1, 2018, net^{(1) (2)}	89			(1,646		)	93		28			—			(1,436		)
Other comprehensive income (loss) before reclassifications, net⁽¹⁾	1,302			—			68		(86		)	32			1,316
Reclassifications to income, net⁽¹⁾	—			—			—		9			11			20
Balances as of April 30, 2018	$	(10,745	)	$	—		$	1,191	$	73		$	(800	)	$	(10,281	)

(1) Income tax impact is immaterial

(2) Primarily relates to the adoption of ASU 2016-01, Financial Instruments–Overall and ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

Long-term Debt (Tables)

3 Months Ended

Apr. 30, 2019

Long-term Debt, by Current and Noncurrent [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

The following table provides the changes in the Company's long-term debt for the three months ended April 30, 2019:



(Amounts in millions)	Long-term debt due within one year			Long-term debt			Total
Balances as of February 1, 2019	$	1,876		$	43,520		$	45,396
Proceeds from issuance of long-term debt	—			3,978			3,978
Repayments of long-term debt	(364		)	—			(364		)
Other	(48		)	(73		)	(121		)
Balances as of April 30, 2019	$	1,464		$	47,425		$	48,889

Schedule of Fiscal Year 2020 Debt Issuances [Table Text Block]

Information on long-term debt issued during the three months ended April 30, 2019 for general corporate purposes is as follows:

(Amounts in millions)

Issue Date

Principal Amount

Maturity Date

Fixed vs. Floating

Interest Rate

Net Proceeds

April 23, 2019

1,500 USD

July 8, 2024

Fixed

2.850%

$

1,493

April 23, 2019

1,250 USD

July 8, 2026

Fixed

3.050%

1,242

April 23, 2019

1,250 USD

July 8, 2029

Fixed

3.250%

1,243

Total

$

3,978

Schedule of Fiscal Year 2020 Debt Maturities [Table Text Block]

The following table provides details of debt repayments during the three months ended April 30, 2019:



(Amounts in millions)
Maturity Date	Original Amount	Fixed vs. Floating	Interest Rate	Repayment
February 1, 2019	500 USD	Fixed	4.125%	$	364
Total repayment of matured debt				$	364

- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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+ Details

Fair Value Measurements (Tables)

3 Months Ended

Apr. 30, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

Information for the fair value of the Company's investment in JD is as follows:



(Amounts in millions)	Fair Value as of April 30, 2019		Fair Value as of January 31, 2019
Investment in JD measured using Level 1 inputs	$	2,181	$	1,791
Investment in JD measured using Level 2 inputs	2,185		1,792
Total	$	4,366	$	3,583

The changes in fair value for the Company's investment in JD is included in other gains and losses in the Company's Condensed Consolidated Statements of Income.

Notional amounts and fair values of derivatives

As of April 30, 2019 and January 31, 2019, the notional amounts and fair values of these derivatives were as follows:



	April 30, 2019					January 31, 2019
(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	$	(42	)	$	4,000	$	(78	)
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as net investment hedges	2,250		392			2,250		334
Receive fixed-rate, pay fixed-rate cross-currency swaps designated as cash flow hedges	4,090		(408		)	4,173		(272		)
Total	$	10,340	$	(58	)	$	10,423	$	(16	)

Carrying value and fair value of long-term debt

The carrying value and fair value of the Company's long-term debt as of April 30, 2019 and January 31, 2019, are as follows:



	April 30, 2019				January 31, 2019
(Amounts in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt, including amounts due within one year	$	48,889	$	53,707	$	45,396	$	49,570

- 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

Derivative Financial Instruments (Tables)

3 Months Ended

Apr. 30, 2019

Summary of Derivative Instruments [Abstract]

Schedule of derivative instruments in statement of financial position, fair value

The Company's derivative instruments, as well as its nonderivative debt instruments designated and qualifying as net investment hedges, were classified as follows in the Company's Condensed Consolidated Balance Sheets:



	April 30, 2019						January 31, 2019
(Amounts in millions)	Fair Value Instruments		Net Investment Instruments		Cash Flow Instruments		Fair Value Instruments		Net Investment Instruments		Cash Flow Instruments
Derivative instruments
Derivative assets:
Other long-term assets	$	—	$	392	$	41	$	—	$	334	$	78

Derivative liabilities:
Deferred income taxes and other	42		—		449		78		—		350

Nonderivative hedging instruments
Long-term debt	—		3,794		—		—		3,863		—

Contingencies Schedule of FCPA Expenses (Tables)

3 Months Ended

Apr. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Foreign corrupt practices act expenses

For the three months ended April 30, 2019 and 2018, the Company incurred the following third-party expenses in connection with the FCPA investigation and related matters:



	Three Months Ended April 30,
(Amounts in millions)	2019		2018
Ongoing inquiries and investigations	$	2	$	4
Global compliance program and organizational enhancements	2		3
Total	$	4	$	7

Segments (Tables)

3 Months Ended

Apr. 30, 2019

Disaggregation of Revenue [Line Items]

Segment Net Sales

Net sales by segment are as follows:



	Three Months Ended April 30,
(Amounts in millions)	2019		2018
Net sales:
Walmart U.S.	$	80,344	$	77,748
Walmart International	28,775		30,260
Sam's Club	13,830		13,622
Net sales	$	122,949	$	121,630

Operating Income by Segment, Interest, Net, and Unrealized (Gains) and Losses

Operating income by segment, as well as operating loss for corporate and support, interest, net and other gains and losses are as follows:



	Three Months Ended April 30,
(Amounts in millions)	2019			2018
Operating income (loss):
Walmart U.S.	$	4,142		$	3,927
Walmart International	738			1,265
Sam's Club	451			325
Corporate and support	(386		)	(363		)
Operating income	4,945			5,154
Interest, net	625			487
Other (gains) and losses	(837		)	1,845
Income before income taxes	$	5,157		$	2,822

Walmart U.S.

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]



(Amounts in millions)	Three Months Ended April 30,
Walmart U.S. net sales by merchandise category	2019		2018
Grocery	$	45,404	$	43,860
General merchandise	24,607		24,174
Health and wellness	9,518		9,128
Other categories	815		586
Total	$	80,344	$	77,748

Walmart International

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]



(Amounts in millions)	Three Months Ended April 30,
Walmart International net sales by market	2019		2018
Mexico and Central America	$	7,837	$	7,684
United Kingdom	7,077		7,515
Canada	4,122		4,254
China	3,063		3,205
Other	6,676		7,602
Total	$	28,775	$	30,260

Sam's Club

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]



(Amounts in millions)	Three Months Ended April 30,
Sam’s Club net sales by merchandise category	2019		2018
Grocery and consumables	$	8,373	$	8,012
Fuel, tobacco and other categories	2,777		2,919
Home and apparel	1,178		1,202
Health and wellness	827		801
Technology, office and entertainment	675		688
Total	$	13,830	$	13,622

Leases (Tables)

3 Months Ended

Apr. 30, 2019

Leases [Abstract]

Lease, Cost [Table Text Block]

The Company's lease cost consists of the following:



(Amounts in millions)	Three Months Ended April 30, 2019
Operating lease cost	$	636
Finance lease cost
Amortization of right-of-use assets	111
Interest on lease obligations	77
Variable lease cost	167

Schedule of Other Information Relating to Lease Liabilities [Table Text Block]

Other lease information is as follows:



(Dollar amounts in millions)	Three Months Ended April 30, 2019
Cash paid for amounts included in measurement of lease obligations:
Operating cash flows from operating leases	$	639
Operating cash flows from finance leases	49
Financing cash flows from finance leases	134
Assets obtained in exchange for operating lease obligations	189
Assets obtained in exchange for finance lease obligations	95
Weighted-average remaining lease term - operating leases	15.8 years
Weighted-average remaining lease term - finance leases	14.4 years
Weighted-average discount rate - operating leases	5.3		%
Weighted-average discount rate - finance leases	9.5		%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The aggregate annual lease obligations at April 30, 2019 are as follows:



(Amounts in millions)
Fiscal Year	Operating Leases			Finance Leases
Remainder of 2020	$	1,819		$	533
2021	2,346			676
2022	2,105			621
2023	1,903			506
2024	1,718			447
Thereafter	15,699			5,367
Total undiscounted lease obligations	25,590			8,150
Less imputed interest	(8,123		)	(3,905		)
Net lease obligations	$	17,467		$	4,245

Lessee, Operating Lease, Disclosure [Table Text Block]

The aggregate minimum annual lease rentals as of January 31, 2019 for the remaining contractual term of non-cancelable leases under ASC 840 were 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.

Accounting Policies Summary of Significant Accounting Policies (Leases) (Details) - USD ($) $ in Millions	Apr. 30, 2019	Jan. 31, 2019	Apr. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total assets	$ 234,544	$ 219,295	$ 204,927
Operating lease right-of-use assets, net	16,833	0	0
Operating lease obligations	17,467
Retained earnings (net of tax)	76,276	$ 80,785	$ 82,982
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total assets	14,800
Total liabilities	15,100
Operating lease right-of-use assets, net	16,800
Operating lease obligations	17,500
Build-to-suit assets derecognized, net	(2,200)
Build-to-suit liabilities derecognized	(1,700)
Retained earnings (net of tax)	$ 300

Accounting Policies Summary of Significant Accounting Policies (Details) - USD ($)	Apr. 30, 2019	Jan. 31, 2019	Apr. 30, 2018	Jan. 31, 2018
Restricted Cash [Abstract]
Restricted Cash	$ 37,000,000	$ 34,000,000	$ 300,000,000	$ 300,000,000
Revenue from Contract with Customer [Abstract]
Receivables from transactions with customers, net	2,566,000,000		2,538,000,000
Deferred gift card revenue	$ 1,899,000,000		$ 1,932,000,000

Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Net Income Per Common Share [Line Items]
Consolidated net income	$ 3,906	$ 2,276
Consolidated net income attributable to noncontrolling interest	(64)	(142)
Consolidated net income attributable to Walmart	$ 3,842	$ 2,134
Weighted-average common shares outstanding, basic (shares)	2,869	2,950
Dilutive impact of share-based awards (shares)	17	17
Weighted-average common shares outstanding, diluted (shares)	2,886	2,967
Basic (dollars per share)	$ 1.34	$ 0.72
Diluted (dollars per share)	$ 1.33	$ 0.72

- 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

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Balances - beginning of period	$ (11,542)	$ (10,181)
Adoption of new accounting standard, AOCI		(1,436)
Other comprehensive income (loss) before reclassifications	452	1,316
Amounts reclassified from accumulated other comprehensive income (loss)	(1)	20
Balances - end of period	(11,091)	(10,281)
Currency Translation and Other
Accumulated Other Comprehensive Income Loss [Line Items]
Balances - beginning of period	(12,085)	(12,136)
Adoption of new accounting standard, AOCI		89
Other comprehensive income (loss) before reclassifications	496	1,302
Amounts reclassified from accumulated other comprehensive income (loss)	(23)	0
Balances - end of period	(11,612)	(10,745)
Unrealized Gain on Available-for-Sale Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Balances - beginning of period	0	1,646
Adoption of new accounting standard, AOCI		(1,646)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Balances - end of period	0	0
Net Investment Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Balances - beginning of period	1,395	1,030
Adoption of new accounting standard, AOCI		93
Other comprehensive income (loss) before reclassifications	108	68
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Balances - end of period	1,503	1,191
Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Balances - beginning of period	(140)	122
Adoption of new accounting standard, AOCI		28
Other comprehensive income (loss) before reclassifications	(145)	(86)
Amounts reclassified from accumulated other comprehensive income (loss)	14	9
Balances - end of period	(271)	73
Minimum Pension Liability
Accumulated Other Comprehensive Income Loss [Line Items]
Balances - beginning of period	(712)	(843)
Adoption of new accounting standard, AOCI		0
Other comprehensive income (loss) before reclassifications	(7)	32
Amounts reclassified from accumulated other comprehensive income (loss)	8	11
Balances - end of period	$ (711)	$ (800)

Long-term Debt Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018	Jan. 31, 2019
Long-term Debt, by Current and Noncurrent [Abstract]
Long-term debt, current maturities	$ 1,464	$ 1,576	$ 1,876
Long-term debt, excluding current maturities	47,425	29,477	43,520
Debt, long-term and short-term, combined amount	48,889		$ 45,396
Proceeds from issuance of long-term debt	3,978	$ 0
Repayments of long-term debt, current maturities	(364)
Repayments of long-term debt, excluding current maturities	0
Repayments of long-term debt, total	364
Long-term debt, current maturities, other Changes	(48)
Long-term debt, excluding current maturities, cther changes	(73)
Long-term debt, other changes	$ (121)

Long-term Debt Schedule of Fiscal Year 2020 Debt Issuances (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 23, 2019	Apr. 30, 2019	Apr. 30, 2018
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Proceeds from issuance of long-term debt		$ 3,978	$ 0
2.850% Debt Issuance, Due 2024 [Domain] \| Unsecured Debt [Member]
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Debt instrument, principal amount	$ 1,500
Debt instrument, interest rate	2.85%
Proceeds from issuance of long-term debt	$ 1,493
3.050% Debt Issuance, Due 2026 [Domain] \| Unsecured Debt [Member]
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Debt instrument, principal amount	$ 1,250
Debt instrument, interest rate	3.05%
Proceeds from issuance of long-term debt	$ 1,242
3.250% Debt Issuance, Due 2029 [Domain] \| Unsecured Debt [Member]
Schedule of Fiscal Year 2020 Debt Issuances [Line Items]
Debt instrument, principal amount	$ 1,250
Debt instrument, interest rate	3.25%
Proceeds from issuance of long-term debt	$ 1,243

Long-term Debt Schedule of Fiscal Year 2020 Debt Maturities (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018	Feb. 01, 2019
Schedule of Fiscal 2020 Debt Maturities [Line Items]
Repayments of long-term debt	$ 364	$ 2,521
4.130% Fixed Rate Debt (500 USD), Due 2019 [Member] \| Unsecured Debt [Member]
Schedule of Fiscal 2020 Debt Maturities [Line Items]
Debt instrument, principal amount			$ 500
Debt instrument, interest rate			4.125%
Repayments of long-term debt	$ 364

Fair Value Measurements Investment in JD (Details) - JD.com [Member] - USD ($) $ in Millions	Apr. 30, 2019	Jan. 31, 2019
Investment in JD [Line Items]
Equity Securities, FV-NI	$ 4,366	$ 3,583
Inputs, Level 1 [Member]
Investment in JD [Line Items]
Equity Securities, FV-NI	2,181	1,791
Inputs, Level 2 [Member]
Investment in JD [Line Items]
Equity Securities, FV-NI	$ 2,185	$ 1,792

Fair Value Measurements (Notional Amounts And Fair Values Of Interest Rate Swaps) (Details) - Recurring - USD ($) $ in Millions	Apr. 30, 2019	Jan. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	$ 10,340	$ 10,423
Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	(58)	(16)
Fair value hedging \| Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	4,000	4,000
Fair value hedging \| Interest Rate Swap [Member] \| Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	(42)	(78)
Net investment hedging \| Cross-currency 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 swaps \| Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	392	334
Cash flow hedges \| Cross-currency swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount	4,090	4,173
Cash flow hedges \| Cross-currency swaps \| Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ (408)	$ (272)

Fair Value Measurements (Carrying Value And Fair Value Of Long-Term Debt) (Details) - USD ($) $ in Millions	Apr. 30, 2019	Jan. 31, 2019
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 48,889	$ 45,396
Fair value \| Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including amounts due within one year, fair value	$ 53,707	$ 49,570

Derivative Financial Instruments (Narrative) (Details) $ in Millions, ¥ in Billions, £ in Billions	3 Months Ended
	Apr. 30, 2019 JPY (¥)	Apr. 30, 2019 GBP (£)	Jan. 31, 2019 JPY (¥)	Jan. 31, 2019 GBP (£)	Apr. 30, 2019 USD ($)	Jan. 31, 2019 USD ($)
Derivative [Line Items]
Cash collateral held from counterparties					$ 209	$ 220
Threshold of derivative liability position requiring cash collateral					$ 150
Designated as hedging instrument \| Net investment hedging \| Japan
Derivative [Line Items]
Notional amount of nonderivative instruments \| ¥	¥ 180		¥ 180
Designated as hedging instrument \| Net investment hedging \| United Kingdom
Derivative [Line Items]
Notional amount of nonderivative instruments \| £		£ 1.7		£ 1.7

Derivative Financial Instruments (Balance Sheet Classification Of Financial Instruments) (Details) - USD ($) $ in Millions	Apr. 30, 2019	Jan. 31, 2019
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	42	78
Net investment hedging \| Other assets and deferred charges
Derivative [Line Items]
Derivative assets	392	334
Net investment hedging \| Deferred income taxes and other
Derivative [Line Items]
Derivative liabilities	0	0
Net investment hedging \| Long-term debt
Derivative [Line Items]
Nonderivative hedging instruments	3,794	3,863
Cash flow hedges \| Other assets and deferred charges
Derivative [Line Items]
Derivative assets	41	78
Cash flow hedges \| Deferred income taxes and other
Derivative [Line Items]
Derivative liabilities	$ 449	$ 350

Contingencies (Details) $ in Millions	Apr. 30, 2019 USD ($)
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss	$ 283
Asda equal value lawsuit
Loss Contingencies [Line Items]
Loss contingency, claims filed, number	30,000

Contingencies Schedule of FCPA Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Foreign Corrupt Practices Act Expenses [Line Items]
Foreign corrupt practices act related expenses	$ 4	$ 7
Inquiry and investigation expense
Foreign Corrupt Practices Act Expenses [Line Items]
Foreign corrupt practices act related expenses	2	4
Compliance programs and organizational enhancements
Foreign Corrupt Practices Act Expenses [Line Items]
Foreign corrupt practices act related expenses	$ 2	$ 3

Disposals, Acquisitions and Related Items (Details) $ in Millions, R$ in Billions		3 Months Ended
	Aug. 18, 2018 USD ($)	Jul. 31, 2018 USD ($)	Apr. 30, 2019 USD ($)	Jan. 31, 2019 USD ($)	Aug. 01, 2018 BRL (R$)	Aug. 01, 2018 USD ($)	Apr. 30, 2018 USD ($)
Business Acquisition [Line Items]
Goodwill			$ 31,416	$ 31,181			$ 18,850
Flipkart [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	81.00%
Aggregate ownership, percent	77.00%
Payments to Acquire Businesses, Net of Cash Acquired	$ 16,000
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	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	13,500
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
Walmart Brazil [Member]
Business Acquisition [Line Items]
Ownership sold, percent					80.00%	80.00%
Disposal Group, Including Discontinued Operation, Consideration						$ 250
(Gain) Loss on Disposition of Business		$ 4,800
Loss Contingency Accrual						$ 800
Guarantor Obligations, Maximum Exposure, Undiscounted \| R$					R$ 2.3
Equity method investment, ownership percentage					20.00%	20.00%

Segments and Disaggregated Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Revenue from External Customer [Line Items]
Net sales	$ 122,949	$ 121,630
Walmart U.S.
Revenue from External Customer [Line Items]
Net sales	80,344	77,748
Walmart International
Revenue from External Customer [Line Items]
Net sales	28,775	30,260
Sam's Club
Revenue from External Customer [Line Items]
Net sales	13,830	13,622
eCommerceMember \| Walmart U.S.
Revenue from External Customer [Line Items]
Net sales	4,300	3,200
eCommerceMember \| Walmart International
Revenue from External Customer [Line Items]
Net sales	2,500	1,000
eCommerceMember \| Sam's Club
Revenue from External Customer [Line Items]
Net sales	$ 700	$ 600

Segment Net Sales (Details) - USD ($) $ in Millions	3 Months Ended
Segment Net Sales (Details) - USD ($) $ in Millions	Apr. 30, 2019	Apr. 30, 2018
Segment Reporting Information [Line Items]
Net sales	$ 122,949	$ 121,630
Walmart U.S.
Segment Reporting Information [Line Items]
Net sales	80,344	77,748
Walmart International
Segment Reporting Information [Line Items]
Net sales	28,775	30,260
Sam's Club
Segment Reporting Information [Line Items]
Net sales	$ 13,830	$ 13,622

Operating Income by Segment, Interest, Net, and Unrealized (Gains) and Losses (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Segment Reporting Information [Line Items]
Operating income	$ 4,945	$ 5,154
Interest, net	625	487
Other (gains) and losses	(837)	1,845
Income before income taxes	5,157	2,822
Walmart U.S.
Segment Reporting Information [Line Items]
Operating income	4,142	3,927
Walmart International
Segment Reporting Information [Line Items]
Operating income	738	1,265
Sam's Club
Segment Reporting Information [Line Items]
Operating income	451	325
Corporate and support
Segment Reporting Information [Line Items]
Operating income	$ (386)	$ (363)

Segments and Disaggregated Revenue Revenue from Contract with Customer Excluding Assessed Tax, Walmart US (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Revenue from External Customer [Line Items]
Net sales	$ 122,949	$ 121,630
Walmart U.S.
Revenue from External Customer [Line Items]
Net sales	80,344	77,748
Walmart U.S. \| Grocery
Revenue from External Customer [Line Items]
Net sales	45,404	43,860
Walmart U.S. \| General merchandise
Revenue from External Customer [Line Items]
Net sales	24,607	24,174
Walmart U.S. \| Health and wellness
Revenue from External Customer [Line Items]
Net sales	9,518	9,128
Walmart U.S. \| Other categories
Revenue from External Customer [Line Items]
Net sales	815	586
eCommerceMember \| Walmart U.S.
Revenue from External Customer [Line Items]
Net sales	$ 4,300	$ 3,200

Segments and Disaggregated Revenue Revenue from Contract with Customer Excluding Assessed Tax, International (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Revenue from External Customer [Line Items]
Net sales	$ 122,949	$ 121,630
Walmart International
Revenue from External Customer [Line Items]
Net sales	28,775	30,260
Mexico and Central America \| Walmart International
Revenue from External Customer [Line Items]
Net sales	7,837	7,684
United Kingdom \| Walmart International
Revenue from External Customer [Line Items]
Net sales	7,077	7,515
Canada \| Walmart International
Revenue from External Customer [Line Items]
Net sales	4,122	4,254
China \| Walmart International
Revenue from External Customer [Line Items]
Net sales	3,063	3,205
Other \| Walmart International
Revenue from External Customer [Line Items]
Net sales	6,676	7,602
eCommerceMember \| Walmart International
Revenue from External Customer [Line Items]
Net sales	$ 2,500	$ 1,000

Segments and Disaggregated Revenue Revenue from Contract with Customer Excluding Assessed Tax, Sam's Club (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Revenue from External Customer [Line Items]
Net sales	$ 122,949	$ 121,630
Sam's Club
Revenue from External Customer [Line Items]
Net sales	13,830	13,622
Sam's Club \| Grocery and consumables
Revenue from External Customer [Line Items]
Net sales	8,373	8,012
Sam's Club \| Fuel, tobacco and other categories
Revenue from External Customer [Line Items]
Net sales	2,777	2,919
Sam's Club \| Home and apparel
Revenue from External Customer [Line Items]
Net sales	1,178	1,202
Sam's Club \| Health and wellness
Revenue from External Customer [Line Items]
Net sales	827	801
Sam's Club \| Technology, office and entertainment
Revenue from External Customer [Line Items]
Net sales	675	688
eCommerceMember \| Sam's Club
Revenue from External Customer [Line Items]
Net sales	$ 700	$ 600

Lease Cost (Details) $ in Millions	3 Months Ended
Lease Cost (Details) $ in Millions	Apr. 30, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 636
Finance lease amortization of lease assets	111
Finance lease interest on lease obligations	77
Variable lease cost	$ 167

Leases Schedule of Other Information Relating to Lease Liabilities (Details) $ in Millions	3 Months Ended
	Apr. 30, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 639
Operating cash flows from finance leases	49
Financing cash flows from finance leases	134
Assets obtained in exchange for operating lease obligations	189
Assets obtained in exchange for finance lease obligations	$ 95
Weighted-average remaining lease term - operating leases	15 years 9 months 18 days
Weighted-average remaining lease term - finance leases	14 years 4 months 24 days
Weighted-average discount rate - operating leases	5.30%
Weighted-average discount rate - finance leases	9.50%

Leases Schedule of Lease Liability Maturity (Details) $ in Millions	Apr. 30, 2019 USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
Remainder of 2020	$ 1,819
2021	2,346
2022	2,105
2023	1,903
2024	1,718
Thereafter	15,699
Total undiscounted lease obligations	25,590
Less imputed interest	(8,123)
Net lease obligations	17,467
Finance Lease Liabilities, Payments, Due [Abstract]
Remainder of 2020	533
2021	676
2022	621
2023	506
2024	447
Thereafter	5,367
Total undiscounted lease obligations	8,150
Less imputed interest	(3,905)
Net lease obligations	$ 4,245

Leases Aggregate Minimum Annual Rentals Under Non-Cancelable Leases (Details) $ in Millions	Jan. 31, 2019 USD ($)
Leases, Operating [Abstract]
2020	$ 1,856
2021	1,655
2022	1,420
2023	1,233
2024	1,063
Thereafter	6,891
Total minimum rentals	14,118
Capital Lease Obligations [Abstract]
2020	917
2021	856
2022	794
2023	667
2024	593
Thereafter	6,069
Total minimum rentals	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