Fair Value Measurements (Tables)

9 Months Ended

Oct. 31, 2015

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables provide a summary of the Company’s recognized assets and liabilities that are measured at fair value on a recurring basis:

	At October 31, 2015						At November 1, 2014						At January 31, 2015
	($ in millions)
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets
Auction rate security		—		6		—		—		6		—		—		6		—
Total Assets	$	—	$	6	$	—	$	—	$	6	$	—	$	—	$	6	$	—
Liabilities
Foreign exchange forward contracts		—		4		—		—		2		—		—		5		—
Total Liabilities	$	—	$	4	$	—	$	—	$	2	$	—	$	—	$	5	$	—

Carrying Value and Estimated Fair Value of Long-Term Debt

The carrying value and estimated fair value of long-term debt and obligations under capital leases were as follows:

	October 31,		November 1,		January 31,
	2015		2014		2015
	($ in millions)
Carrying value	$	131	$	135	$	134
Fair value	$	157	$	161	$	163