Amount awarded from other party in judgment or settlement of litigation.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

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-Name Accounting Standards Codification
-Section 50
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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
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-Section 50
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-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

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- Definition

Number of defendants named in a legal action.

+ References

+ Details

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Balance Type:	na
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- Definition

Cash received for the settlement of litigation during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
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-Name Accounting Standards Codification
-Section 45
-Paragraph 25
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-Publisher FASB
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- Definition

Litigation Settlement, Amount Awarded from Other Party, Attorney's Fees

+ References

No definition available.

+ Details

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- Definition

Litigation Settlement, Number of Derivative Actions Filed

+ References

No definition available.

+ Details

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- Definition

Litigation Settlement, Number of Shareholders That Filed Derivative Actions

+ References

No definition available.

+ Details

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- Definition

Litigation Settlement, Period To Maintain Certain Corporate Governance Practices, Minimum

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Damages Awarded, Period

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Damages Awarded Value, Vacated

+ References

No definition available.

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- Definition

Loss Contingency, Number Of Counties That Brought Claims

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Number Of Current And Former Employees Who Brought Claims

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Number Of Former Employees Who Brought Complaints

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Number Of Phases

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Number Of States With Settlement Agreements

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Number Of U.S. Territories With Settlement Agreements

+ References

No definition available.

+ Details

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- Definition

Loss Contingency, Types Of Supplier Contributions

+ References

No definition available.

+ Details

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- Definition

Number Of Cases Brought By Hospitals

+ References

No definition available.

+ Details

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- Definition

Number Of Cases Brought By Third-Party Payers

+ References

No definition available.

+ Details

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Namespace Prefix:	wmt_
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- Definition

Number Of Putative Class Actions

+ References

No definition available.

+ Details

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- Definition

Number of securities class actions

+ References

No definition available.

+ Details

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- Details

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Contingencies (Details) employee in Thousands, $ in Millions, $ in Millions	Jan. 31, 2025 USD ($)	Dec. 24, 2024 USD ($)	Dec. 20, 2024 USD ($)	Dec. 12, 2024 USD ($) supplierContribution	Dec. 12, 2024 MXN ($) supplierContribution	Aug. 17, 2022 USD ($) defendant county	Apr. 30, 2025 securitiesClassAction state shareholder case phase employee classAction territory derivativeAction	Jan. 09, 2025 pharmacist	Jan. 31, 2023 USD ($)
Loss Contingencies [Line Items]
Number of cases brought by third-party payers \| case							4
Number of cases brought by hospitals \| case							1
Number of former employees who brought complaints \| pharmacist								2
Number of phases \| phase							3
Canada Opioids Class Action Complaints
Loss Contingencies [Line Items]
Number of putative class actions \| classAction							2
Opioids Litigation
Loss Contingencies [Line Items]
Number of states with settlement agreements \| state							50
Number of U.S. territories with settlement agreements \| territory							3
Loss contingency, accrued liabilities									$ 3,300.0
Number of securities class actions \| securitiesClassAction							2
Opioids Litigation \| Judicial Ruling, Pending Appeal
Loss Contingencies [Line Items]
Number of counties that brought claims \| county						2
Loss contingency, number of defendants \| defendant						3
Loss contingency, damages awarded, value						$ 700.0
Loss contingency, damages awarded, period						15 years
Loss contingency, damages awarded value, vacated	$ 700.0
Opioids Litigation \| Settled Litigation
Loss Contingencies [Line Items]
Number of shareholders that filed derivative actions \| shareholder							3
Number of derivative actions filed \| derivativeAction							2
Litigation settlement, amount awarded from other party			$ 123.0
Amount awarded from other party, attorney's fees			$ 24.6
Minimum period to maintain certain corporate governance practices (in years)			5 years
Proceeds from legal settlements		$ 99.0
Asda Equal Value Claims
Loss Contingencies [Line Items]
Number of current and former employees who brought claims \| employee							70
Mexico Antitrust Matter \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, damages awarded, value				$ 5.0	$ 93.4
Types of supplier contributions \| supplierContribution				2	2