Condensed Consolidated Statement Of Shareholders' Equity (Unaudited) - 9 months ended Oct. 31, 2015 - USD ($) shares in Millions, $ in Millions	Total	Common stock	Capital in excess of par value	Retained earnings	Accumulated other comprehensive income (loss)	Total Walmart shareholders' equity	Nonredeemable noncontrolling interest
Balances, in shares at Jan. 31, 2015		3,228
Balances at Jan. 31, 2015	$ 85,937	$ 323	$ 2,462	$ 85,777	$ (7,168)	$ 81,394	$ 4,543
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Consolidated net income	10,332			10,120		10,120	212
Other comprehensive income (loss), net of income taxes	(3,842)				(3,491)	(3,491)	(351)
Cash dividends declared	(6,314)			(6,314)		(6,314)
Purchase of Company stock	(1,720)	$ (2)	(46)	(1,672)		(1,720)
Purchase of Company stock (in shares)		(23)
Dividends declared to noncontrolling interest	(794)						(794)
Other, in shares		5
Other	(969)		(410)	(8)		(418)	(551)
Balances at Oct. 31, 2015	$ 82,630	$ 321	$ 2,006	$ 87,903	$ (10,659)	$ 79,571	$ 3,059
Balances, in shares at Oct. 31, 2015		3,210