Financial Instruments (Tables)

9 Months Ended

Oct. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value of Derivative Contracts on Gross Basis, by Type of Contract

The following is presented on a gross basis, by type of contract:

	Balance Sheet	October 31,		November 1,		January 31,
($ in millions)	Caption	2015		2014		2015
Hedging Instruments:
Foreign exchange forward contracts	Current liabilities	$	3	$	2	$	4
Non-Hedging Instruments:
Foreign exchange forward contracts	Current assets	$	2	$	—	$	—
Foreign exchange forward contracts	Current liabilities	$	3	$	—	$	1