Segments

The Company is engaged in retail and wholesale operations located in the U.S., Argentina, Brazil, Canada, Chile, China, India, Japan, Mexico and the United Kingdom, as well as countries located in Africa and Central America. The Company's operations are conducted in three business segments: Walmart U.S., Walmart International and Sam's Club. The Company defines its segments as those operations whose results its 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. operating under the "Walmart" or "Wal-Mart" brands, as well as walmart.com. The Walmart International segment consists of the Company's operations outside of the U.S., including various retail websites. The Sam's Club segment includes the warehouse membership clubs in the U.S., as well as samsclub.com. 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 July 31,				Six Months Ended July 31,
(Amounts in millions)	2015		2014		2015		2014
Net sales:
Walmart U.S.	$	73,959	$	70,601	$	144,204	$	138,453
Walmart International	30,637		33,872		60,915		66,296
Sam's Club	14,734		14,863		28,213		28,754
Net sales	$	119,330	$	119,336	$	233,332	$	233,503

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



	Three Months Ended July 31,						Six Months Ended July 31,
(Amounts in millions)	2015			2014			2015			2014
Operating income (loss):
Walmart U.S.	$	4,819		$	5,252		$	9,458		$	10,227
Walmart International	1,277			1,489			2,347			2,691
Sam's Club	428			494			855			973
Corporate and support	(455		)	(495		)	(911		)	(958		)
Operating income	6,069			6,740			11,749			12,933
Interest, net	543			538			1,367			1,106
Income from continuing operations before income taxes	$	5,526		$	6,202		$	10,382		$	11,827