Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Jan. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	Fiscal Year Ended January 31, 2016
(Amounts in millions, except per share data)	Q1		Q2		Q3		Q4		Total
Total revenues	$	114,826	$	120,229	$	117,408	$	129,667	$	482,130
Net sales	114,002		119,330		116,598		128,684		478,614
Cost of sales	86,483		90,056		87,446		96,999		360,984
Income from continuing operations	3,283		3,635		3,414		4,748		15,080
Consolidated net income	3,283		3,635		3,414		4,748		15,080
Consolidated net income attributable to Walmart	3,341		3,475		3,304		4,574		14,694
Basic net income per common share attributable to Walmart	1.03		1.08		1.03		1.44		4.58
Diluted net income per common share attributable to Walmart	1.03		1.08		1.03		1.43		4.57
	Fiscal Year Ended January 31, 2015
	Q1		Q2		Q3		Q4		Total
Total revenues	$	114,960	$	120,125	$	119,001	$	131,565	$	485,651
Net sales	114,167		119,336		118,076		130,650		482,229
Cost of sales	86,714		90,010		89,247		99,115		365,086
Income from continuing operations	3,711		4,089		3,826		5,188		16,814
Consolidated net income	3,726		4,359		3,826		5,188		17,099
Consolidated net income attributable to Walmart	3,593		4,093		3,711		4,966		16,363
Basic net income per common share:
Basic income per common share from continuing operations attributable to Walmart	1.10		1.22		1.15		1.54		5.01
Basic income (loss) per common share from discontinued operations attributable to Walmart	0.01		0.05		—		—		0.06
Basic net income per common share attributable to Walmart	1.11		1.27		1.15		1.54		5.07
Diluted net income per common share:
Diluted income per common share from continuing operations attributable to Walmart	1.10		1.21		1.15		1.53		4.99
Diluted income (loss) per common share from discontinued operations attributable to Walmart	0.01		0.05		—		—		0.06
Diluted net income per common share attributable to Walmart	1.11		1.26		1.15		1.53		5.05