Notional Amounts for Outstanding Derivatives and Weighted-Average Exchange Rates of Foreign Exchange Forward Contracts (Detail) (Derivatives Designated as Non-Hedging Instruments, Foreign Exchange Forward, USD $) In Millions, unless otherwise specified	Jan. 28, 2012
Diesel Fuel
Derivative [Line Items]
Notional value of contracts outstanding	$ 7
Inventories | Currency, British Pound Sterling
Derivative [Line Items]
Notional value of contracts outstanding	65
Weighted-Average Exchange Rate	0.8563
Inventories | Currency, Euro
Derivative [Line Items]
Notional value of contracts outstanding	2
Weighted-Average Exchange Rate	0.7798
Intercompany | Currency, British Pound Sterling
Derivative [Line Items]
Notional value of contracts outstanding	20
Weighted-Average Exchange Rate	0.8471
Intercompany | Currency, Euro
Derivative [Line Items]
Notional value of contracts outstanding	9
Weighted-Average Exchange Rate	1.2014
Intercompany | Currency, Canadian Dollar
Derivative [Line Items]
Notional value of contracts outstanding	$ 3
Weighted-Average Exchange Rate	1.0194