Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 5,307	$ 1,896
Consolidated net income attributable to noncontrolling interest	(203)	(223)
Consolidated net income attributable to Walmart	5,104	1,673
Other comprehensive income, net of income taxes
Currency translation and other	(21)	811
Cash flow hedges	28	(69)
Other comprehensive income, net of income taxes	7	742
Other comprehensive income attributable to noncontrolling interest	(72)	(209)
Other comprehensive income (loss) attributable to Walmart	(65)	533
Comprehensive income, net of income taxes	5,314	2,638
Comprehensive income attributable to noncontrolling interest	(275)	(432)
Comprehensive income attributable to Walmart	$ 5,039	$ 2,206