Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Revenues:
Net sales	$ 122,136	$ 117,176	$ 360,611	$ 351,567
Membership and other income	1,043	1,003	3,465	3,370
Total revenues	123,179	118,179	364,076	354,937
Costs and expenses:
Cost of sales	91,547	87,484	270,756	263,513
Operating, selling, general and administrative expenses	26,868	25,576	77,350	74,865
Operating income	4,764	5,119	15,970	16,559
Interest:
Debt	502	528	1,530	1,536
Capital lease and financing obligations	81	81	264	246
Interest income	(42)	(24)	(115)	(70)
Interest, net	541	585	1,679	1,712
Loss on extinguishment of debt	1,344	0	2,132	0
Income before income taxes	2,879	4,534	12,159	14,847
Provision for income taxes	975	1,332	3,999	4,540
Consolidated net income	1,904	3,202	8,160	10,307
Consolidated net income attributable to noncontrolling interest	(155)	(168)	(473)	(421)
Consolidated net income attributable to Walmart	$ 1,749	$ 3,034	$ 7,687	$ 9,886
Basic net income per common share:
Basic net income per common share attributable to Walmart	$ 0.59	$ 0.98	$ 2.56	$ 3.17
Diluted net income per common share:
Diluted net income per common share attributable to Walmart	$ 0.58	$ 0.98	$ 2.54	$ 3.16
Weighted-average common shares outstanding:
Basic	2,981	3,089	3,008	3,114
Diluted	2,996	3,100	3,021	3,124
Dividends declared per common share	$ 0.00	$ 0.00	$ 2.04	$ 2.00