Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
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
Other comprehensive income (loss), net of income taxes
Currency translation and other	2,540	(3,027)	(5,220)
Unrealized gain on available-for-sale securities	1,501	145	0
Minimum pension liability	147	(397)	86
Other comprehensive income (loss), net of income taxes	4,220	(2,845)	(4,970)
Less other comprehensive income (loss) attributable to noncontrolling interest	(169)	210	541
Other comprehensive income (loss) attributable to Walmart	4,051	(2,635)	(4,429)
Comprehensive income, net of income taxes	14,743	11,448	10,110
Comprehensive (income) loss attributable to noncontrolling interest	(830)	(440)	155
Comprehensive income attributable to Walmart	13,913	11,008	10,265
Net investment hedging
Other comprehensive income (loss), net of income taxes
Derivative instruments	(405)	413	366
Cash flow hedging
Other comprehensive income (loss), net of income taxes
Derivative instruments	$ 437	$ 21	$ (202)