Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 01, 2015	Aug. 02, 2014	Aug. 01, 2015	Aug. 02, 2014
Net income (loss)	$ 217	$ 292	$ 410	$ 516
Amortization of net actuarial loss on post employment and postretirement benefit plans, before tax	11	7	24	13
Tax effect related to items of other comprehensive income	4	3	9	5
Total other comprehensive income, net of tax effect	7	4	15	8
Comprehensive income (loss)	$ 224	$ 296	$ 425	$ 524