Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Jan. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	Fiscal Year Ended January 31, 2018
(Amounts in millions, except per share data)	Q1		Q2		Q3		Q4		Total
Total revenues	$	117,542	$	123,355	$	123,179	$	136,267	$	500,343
Net sales	116,526		121,949		122,136		135,150		495,761
Cost of sales	87,688		91,521		91,547		102,640		373,396
Consolidated net income	3,152		3,104		1,904		2,363		10,523
Consolidated net income attributable to Walmart	3,039		2,899		1,749		2,175		9,862
Basic net income per common share attributable to Walmart	1.00		0.96		0.59		0.74		3.29
Diluted net income per common share attributable to Walmart(1)	1.00		0.96		0.58		0.73		3.28
	Fiscal Year Ended January 31, 2017
	Q1		Q2		Q3		Q4		Total
Total revenues	$	115,904	$	120,854	$	118,179	$	130,936	$	485,873
Net sales	114,986		119,405		117,176		129,750		481,317
Cost of sales	86,544		89,485		87,484		97,743		361,256
Consolidated net income	3,216		3,889		3,202		3,986		14,293
Consolidated net income attributable to Walmart	3,079		3,773		3,034		3,757		13,643
Basic net income per common share attributable to Walmart	0.98		1.21		0.98		1.23		4.40
Diluted net income per common share attributable to Walmart(1)	0.98		1.21		0.98		1.22		4.38

(1) The sum of quarterly amounts may not agree to annual amount due to rounding and the impact of a decreasing amount of shares outstanding during the year.