Segments

The Company is engaged in the operation of retail, wholesale and other units located in the U.S., Africa, Argentina, Brazil, Canada, Central America, Chile, China, India, Japan, Mexico and the United Kingdom. The Company's operations are conducted in three reportable 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 October 31,				Nine Months Ended October 31,
(Amounts in millions)	2014		2013		2014		2013
Net sales:
Walmart U.S.	$	70,025	$	67,692	$	208,478	$	202,973
Walmart International	33,659		33,109		99,955		98,839
Sam's Club	14,392		14,075		43,146		42,478
Net sales	$	118,076	$	114,876	$	351,579	$	344,290

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



	Three Months Ended October 31,						Nine Months Ended October 31,
(Amounts in millions)	2014			2013			2014			2013
Operating income (loss):
Walmart U.S.	$	4,932		$	4,991		$	15,159		$	15,571
Walmart International	1,430			1,379			4,121			3,921
Sam's Club	493			440			1,466			1,448
Corporate and support	(590		)	(500		)	(1,548		)	(1,415		)
Operating income	6,265			6,310			19,198			19,525
Interest, net	656			580			1,762			1,662
Income from continuing operations before income taxes	$	5,609		$	5,730		$	17,436		$	17,863