Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014 SAIC	Jan. 31, 2013 SAIC	Jan. 31, 2012 SAIC
Cash dividend per share	$ 1.60	$ 1.92
Stock based compensation from discontinued operations			$ 30	$ 31	$ 21
Special cash dividend	$ 4