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Segments and Disaggregated Revenue
 6 Months Ended
Jul. 31, 2021
Segment Reporting Information, Profit (Loss) [Abstract]  
Segments and Disaggregated Revenue Segments and Disaggregated Revenue
Segments
The Company is engaged in the operation of retail, wholesale, eCommerce websites and other units located throughout the U.S., Africa, Canada, Central America, Chile, China, India and Mexico. 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 merchandising 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 and other measures, 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 July 31,Six Months Ended July 31,
(Amounts in millions)
2021202020212020
Net sales:
Walmart U.S.$98,192 $93,282 $191,359 $182,025 
Walmart International23,035 27,167 50,335 56,933 
Sam's Club18,644 16,375 35,336 31,538 
Net sales$139,871 $136,824 $277,030 $270,496 
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 July 31,Six Months Ended July 31,
(Amounts in millions)
2021202020212020
Operating income (loss):
Walmart U.S.$6,089 $5,057 $11,544 $9,359 
Walmart International861 812 2,055 1,618 
Sam's Club660 592 1,235 1,086 
Corporate and support(256)(402)(571)(780)
Operating income7,354 6,059 14,263 11,283 
Interest, net478 635 1,014 1,184 
Other (gains) and losses953 (3,222)3,482 (3,943)
Income before income taxes$5,923 $8,646 $9,767 $14,042 
Disaggregated Revenues
In the following tables, segment net sales are disaggregated by either merchandise category or by market. From time to time, the Company revises the assignment of net sales of a particular item to a merchandise category. When the assignment changes, previous period amounts are reclassified to be comparable to the current period's presentation.
In addition, net sales related to eCommerce are provided for each segment, which include omni-channel sales, where a customer initiates an order digitally and the order is fulfilled through a store or club.
(Amounts in millions)Three Months Ended July 31,Six Months Ended July 31,
Walmart U.S. net sales by merchandise category2021202020212020
Grocery$54,649 $51,545 $106,040 $104,466 
General merchandise31,707 31,682 62,314 57,148 
Health and wellness10,480 9,154 20,450 18,754 
Other categories1,356 901 2,555 1,657 
Total$98,192 $93,282 $191,359 $182,025 
Of Walmart U.S.'s total net sales, approximately $11.2 billion and $10.5 billion related to eCommerce for the three months ended July 31, 2021 and 2020, respectively, and approximately $22.5 billion and $18.8 billion related to eCommerce for the six months ended July 31, 2021 and 2020, respectively.
(Amounts in millions)Three Months Ended July 31,Six Months Ended July 31,
Walmart International net sales by market2021202020212020
Mexico and Central America$8,658 $7,208 $16,988 $15,704 
United Kingdom— 6,698 3,811 13,830 
Canada5,492 5,127 10,340 9,413 
China3,001 2,579 6,774 5,947 
Other5,884 5,555 12,422 12,039 
Total$23,035 $27,167 $50,335 $56,933 
Of Walmart International's total net sales, approximately $4.1 billion and $3.3 billion related to eCommerce for the three months ended July 31, 2021 and 2020, respectively, and approximately $8.4 billion and $6.2 billion related to eCommerce for the six months ended July 31, 2021 and 2020, respectively.
(Amounts in millions)Three Months Ended July 31,Six Months Ended July 31,
Sam’s Club net sales by merchandise category2021202020212020
Grocery and consumables$12,014 $10,715 $22,683 $21,076 
Fuel, tobacco and other categories2,816 2,068 5,115 4,081 
Home and apparel2,194 1,953 4,276 3,233 
Health and wellness956 931 1,897 1,832 
Technology, office and entertainment664 708 1,365 1,316 
Total$18,644 $16,375 $35,336 $31,538 
Of Sam's Club's total net sales, approximately $1.6 billion and $1.3 billion related to eCommerce for the three months ended July 31, 2021 and 2020, respectively, and approximately $3.2 billion and $2.3 billion related to eCommerce for the six months ended July 31, 2021 and 2020, respectively.