Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Revenues:
Net sales	$ 495,761	$ 481,317	$ 478,614
Membership and other income	4,582	4,556	3,516
Total revenues	500,343	485,873	482,130
Costs and expenses:
Cost of sales	373,396	361,256	360,984
Operating, selling, general and administrative expenses	106,510	101,853	97,041
Operating income	20,437	22,764	24,105
Interest:
Debt	1,978	2,044	2,027
Capital lease and financing obligations	352	323	521
Interest income	(152)	(100)	(81)
Interest, net	2,178	2,267	2,467
Gain (loss) on extinguishment of debt	3,136	0	0
Income before income taxes	15,123	20,497	21,638
Provision for income taxes	4,600	6,204	6,558
Consolidated net income	10,523	14,293	15,080
Consolidated net income attributable to noncontrolling interest	(661)	(650)	(386)
Consolidated net income attributable to Walmart	$ 9,862	$ 13,643	$ 14,694
Net income per common share:
Basic net income per common share attributable to Walmart	$ 3.29	$ 4.40	$ 4.58
Diluted net income per common share attributable to Walmart	$ 3.28	$ 4.38	$ 4.57
Weighted-average common shares outstanding:
Basic	2,995	3,101	3,207
Diluted	3,010	3,112	3,217
Dividends declared per common share	$ 2.04	$ 2.00	$ 1.96