Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Consolidated net income	$ 1,904	$ 3,202	$ 8,160	$ 10,307
Less 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
Other comprehensive income (loss), net of income taxes
Currency translation and other	422	(725)	2,607	(1,054)
Unrealized gain on available-for-sale securities	(551)	(32)	657	(32)
Minimum pension liability	14	17	46	(89)
Other comprehensive income (loss), net of income taxes	(87)	(661)	3,332	(830)
Less other comprehensive (income) loss attributable to nonredeemable noncontrolling interest	54	(2)	(233)	92
Other comprehensive income (loss) attributable to Walmart	(33)	(663)	3,099	(738)
Comprehensive income, net of income taxes	1,817	2,541	11,492	9,477
Less comprehensive (income) loss attributable to noncontrolling interest	(101)	(170)	(706)	(329)
Comprehensive income attributable to Walmart	1,716	2,371	10,786	9,148
Net investment hedging
Other comprehensive income (loss), net of income taxes
Derivative instruments	28	258	(121)	468
Cash flow hedging
Other comprehensive income (loss), net of income taxes
Derivative instruments	$ 0	$ (179)	$ 143	$ (123)