Debt (Detail) (USD $)	12 Months Ended
Jan. 30, 2015	Jan. 31, 2014
Debt Instrument [Line Items]
Total notes payable and long-term debt	$ 1,166,000,000	$ 1,333,000,000
Total notes payable and long-term debt, net of current portion	1,164,000,000	1,331,000,000
Less current portion	2,000,000	2,000,000
Fair value of notes payable and long-term debt	1,152,000,000us-gaap_DebtInstrumentFairValue	1,350,000,000us-gaap_DebtInstrumentFairValue
Notes Which Mature In December 2020
Debt Instrument [Line Items]
Senior unsecured notes	466,000,000	449,000,000
Stated interest rate	4.45%
Effective interest rate	4.53%
Senior unsecured notes, face amount	450,000,000
Debt maturity date	Dec. 01, 2020
Notes Which Mature In December 2040
Debt Instrument [Line Items]
Senior unsecured notes	232,000,000	300,000,000
Stated interest rate	5.95%
Effective interest rate	6.03%
Senior unsecured notes, face amount	300,000,000
Debt maturity date	Dec. 01, 2040
Notes Which Mature In July 2032
Debt Instrument [Line Items]
Senior unsecured notes	248,000,000	248,000,000
Stated interest rate	7.13%
Effective interest rate	7.43%
Senior unsecured notes, face amount	250,000,000
Debt maturity date	Jul. 01, 2032
Notes Which Mature In July 2033
Debt Instrument [Line Items]
Senior unsecured notes	182,000,000	296,000,000
Stated interest rate	5.50%
Effective interest rate	5.85%
Senior unsecured notes, face amount	300,000,000
Debt maturity date	Jul. 01, 2033
Capital leases and other notes payable due on various dates through fiscal 2021
Debt Instrument [Line Items]
Other notes payable due on various dates through fiscal 2021	$ 38,000,000	$ 40,000,000
Minimum stated interest rate	0.00%
Maximum stated interest rate	3.70%

Face (par) amount of debt instrument at time of issuance.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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