Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Revenues:
Net sales	$ 127,059	$ 121,949	$ 248,689	$ 238,475
Membership and other income	969	1,406	2,029	2,422
Total revenues	128,028	123,355	250,718	240,897
Costs and expenses:
Cost of sales	95,571	91,521	187,278	179,209
Operating, selling, general and administrative expenses	26,707	25,865	52,536	50,482
Operating income	5,750	5,969	10,904	11,206
Interest:
Debt	460	522	897	1,028
Capital lease and financing obligations	94	91	187	183
Interest income	(51)	(38)	(94)	(73)
Interest, net	503	575	990	1,138
Gain (Loss) on Extinguishment of Debt	0	(788)	0	(788)
Nonoperating Income (Expense)	(4,849)	0	(6,694)	0
Income before income taxes	398	4,606	3,220	9,280
Provision for income taxes	1,125	1,502	1,671	3,024
Consolidated net income (loss)	(727)	3,104	1,549	6,256
Consolidated net income attributable to noncontrolling interest	(134)	(205)	(276)	(318)
Consolidated net income (loss) attributable to Walmart	$ (861)	$ 2,899	$ 1,273	$ 5,938
Basic net income per common share:
Basic net income (loss) per common share attributable to Walmart	$ (0.29)	$ 0.96	$ 0.43	$ 1.97
Diluted net income per common share:
Diluted net income (loss) per common share attributable to Walmart	$ (0.29)	$ 0.96	$ 0.43	$ 1.96
Weighted-average common shares outstanding:
Basic	2,946	3,008	2,948	3,021
Diluted	2,946	3,021	2,963	3,034
Dividends declared per common share	$ 0.00	$ 0.00	$ 2.08	$ 2.04