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.