Fair Value Disclosures
 6 Months Ended
Aug. 01, 2015
Fair Value Disclosures [Abstract]  
Fair Value Disclosures
Fair Value Disclosures
Cash Flow Hedges Measured on a Recurring Basis
Our cash flow hedges are valued in the market using discounted cash flow techniques which use quoted market interest rates in discounted cash flow calculations which consider the instrument's term, notional amount, discount rate and credit risk. Significant inputs to the derivative valuation for interest rate swaps are observable in the active markets and are classified as Level 2 in the fair value measurement hierarchy.

Our cash flow hedges measured at fair value are as follows:
 
Cash Flow Hedges at Fair Value
($ in millions)
Quoted Prices in Active Markets of Identical Assets (Level 1)
 
Significant Other Observable Inputs (Level 2)
 
Significant Unobservable Inputs (Level 3)
August 1, 2015
$
—

 
$
(11
)
 
$
—

August 2, 2014
—

 
—

 
—

January 31, 2015
—

 
—

 
—



Other Financial Instruments
Carrying values and fair values of financial instruments that are not carried at fair value in the unaudited Interim Consolidated Balance Sheets are as follows:
 
 
August 1, 2015
 
August 2, 2014
 
January 31, 2015
($ in millions)
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
Long-term debt, excluding unamortized debt issuance costs, including current maturities
$
5,336

 
$
5,002

 
$
5,351

 
$
5,072

 
$
5,350

 
$
4,834


The fair value of long-term debt was estimated by obtaining quotes from brokers or was based on current rates offered for similar debt. As of August 1, 2015, August 2, 2014 and January 31, 2015, the fair values of cash and cash equivalents, accounts payable and short-term borrowings approximated their carrying values due to the short-term nature of these instruments. In addition, the fair values of capital lease commitments and the note payable approximated their carrying values. These items have been excluded from the table above.
Concentrations of Credit Risk
We have no significant concentrations of credit risk.