Debt and Credit Facilities - Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified	Oct. 27, 2012	Aug. 31, 2012	Jan. 28, 2012	Oct. 29, 2011
Debt Disclosure [Abstract]
Notes	$ 1,246		$ 1,246	$ 1,246
Term loan	0	0	400	400
Total long-term debt	1,246		1,646	1,646
Less: Current portion	0		40	40
Total long-term debt, less current portion	$ 1,246		$ 1,606	$ 1,606

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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