Derivative Instruments and Hedging Activities (Tables)

9 Months Ended

Oct. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Derivative

The fair value of the interest rate swaps and their impact on the related fair value of the debt in the condensed consolidated balance sheet is as follows:

Interest rate swaps					Hedged items
Balance sheet line item	October 31, 2014		January 31, 2014		Balance sheet line item	October 31, 2014		January 31, 2014
(in millions)
Other assets	$	2	$	—	Notes payable and long-term debt, net of current portion	$	2	$	—