Litigation and Other Charges (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Litigation and Other Charges [Abstract]
Less: Pension litigation	[1]	$ 3	$ 50	$ 15	$ 50
Plan reformation cost		2		13
Professional Fees		$ 1		$ 2

[1] Included in the thirteen and twenty-six weeks ended August 4, 2018 are pre-tax charges of $3 million and $15 million, respectively, relating to a pension litigation matter described further in Note 14, Legal Proceedings. Included in the thirteen and twenty-six weeks ended July 29, 2017 are pre-tax charges of $50 million in both periods relating to the same matter.