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Segment Information - Additional Information (Detail) - segment	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Sales Information [Line Items]
Number of reportable segments (in segments)	5
Walmart Inc. and Subsidiaries | Revenue from Contract with Customer | Customer Concentration Risk
Sales Information [Line Items]
Percentage of sales by major customer	15.00%	15.00%	15.00%
Amazon | Revenue from Contract with Customer | Customer Concentration Risk
Sales Information [Line Items]
Percentage of sales by major customer	13.00%	12.00%	9.00%

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Sales Information [Line Items]

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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