Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 8,053	$ 5,147	$ 9,949	$ 7,250
Consolidated net (income) loss attributable to noncontrolling interest	(162)	2	(385)	(47)
Consolidated net income attributable to Walmart	7,891	5,149	9,564	7,203
Other comprehensive income (loss), net of income taxes
Currency translation and other	307	(1,380)	1,116	(1,148)
Net investment hedges	0	0	0	0
Cash flow hedges	135	(293)	66	(251)
Minimum pension liability	(1)	2	1	3
Other comprehensive income (loss), net of income taxes	441	(1,671)	1,183	(1,396)
Other comprehensive (income) loss attributable to noncontrolling interest	(112)	275	(321)	268
Other comprehensive income (loss) attributable to Walmart	329	(1,396)	862	(1,128)
Comprehensive income, net of income taxes	8,494	3,476	11,132	5,854
Comprehensive (income) loss attributable to noncontrolling interest	(274)	277	(706)	221
Comprehensive income attributable to Walmart	$ 8,220	$ 3,753	$ 10,426	$ 6,075