Legal Proceedings - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Oct. 31, 2015		Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Legal Proceedings [Line Items]
Loss Contingency, Range of Possible Loss, Minimum		$ 100			$ 100
Loss Contingency, Range of Possible Loss, Maximum		200			200
Loss Contingency, Loss in Period	[1]	100	[2]	$ 0	100	$ 0
Loss Contingency Loss In Period After Tax		$ 61			$ 61

[1] Included in the thirteen and thirty-nine weeks ended October 31, 2015 is a pre-tax litigation charge of $100 million relating to a pension litigation matter described further in Note 12, Legal Proceedings.

[2] Included in the thirteen and thirty-nine weeks ended October 31, 2015 is a pre-tax litigation charge of $100 million relating to the pension litigation matter. This charge was recorded in connection with the U.S. District Court ruling in favor of the plaintiff. Please see Note 12, Legal Proceedings note for further information.