Debt And Credit Facilities (Summary Of Long-Term Debt) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
Oct. 29, 2011	Oct. 30, 2010	Jan. 29, 2011
Debt Instrument [Line Items]
Total secured debt	$ 565	$ 570	$ 569
Total unsecured debt	2,751	2,242	2,212
Total long-term debt	3,316	2,812	2,781
Less: current portion	(506)	(6)	(6)
Total due beyond one year	2,810	2,806	2,775
Series 2007-2 Class A Notes, One-Month LIBOR Plus 0.06% Per Year, Due April 2012 [Member]
Debt Instrument [Line Items]
Total secured debt	454	454	454
Debt instrument interest rate	0.06%	0.06%	0.06%
Interest rate for debt instruments	one-month LIBOR plus 0.06% per year	one-month LIBOR plus 0.06% per year	one-month LIBOR plus 0.06% per year
Maturity date	April 2012	April 2012	April 2012
Series 2007-2 Class B Notes, One-Month LIBOR Plus 0.18% Per Year, Due April 2012 [Member]
Debt Instrument [Line Items]
Total secured debt	46	46	46
Debt instrument interest rate	0.18%	0.18%	0.18%
Interest rate for debt instruments	one-month LIBOR plus 0.18% per year	one-month LIBOR plus 0.18% per year	one-month LIBOR plus 0.18% per year
Maturity date	April 2012	April 2012	April 2012
Mortgage Payable, 7.68%, Due April 2020 [Member]
Debt Instrument [Line Items]
Total secured debt	52	57	55
Debt instrument interest rate	7.68%	7.68%	7.68%
Maturity date	April 2020	April 2020	April 2020
Senior Notes, 6.75%, Due June 2014, Net Of Unamortized Discount [Member]
Debt Instrument [Line Items]
Total unsecured debt	399	399	399
Debt instrument interest rate	6.75%	6.75%	6.75%
Maturity date	June 2014	June 2014	June 2014
Senior Notes, 6.25%, Due January 2018, Net Of Unamortized Discount [Member]
Debt Instrument [Line Items]
Total unsecured debt	648	647	647
Debt instrument interest rate	6.25%	6.25%	6.25%
Maturity date	January 2018	January 2018	January 2018
Senior Notes, 4.75%, Due May 2020, Net Of Unamortized Discount [Member]
Debt Instrument [Line Items]
Total unsecured debt	498	498	498
Debt instrument interest rate	4.75%	4.75%	4.75%
Maturity date	May 2020	May 2020	May 2020
Senior Notes, 4.00%, Due October 2021, Net Of Unamortized Discount [Member]
Debt Instrument [Line Items]
Total unsecured debt	499
Debt instrument interest rate	4.00%
Maturity date	October 15, 2021
Senior Debentures, 6.95%, Due March 2028 [Member]
Debt Instrument [Line Items]
Total unsecured debt	300	300	300
Debt instrument interest rate	6.95%	6.95%	6.95%
Maturity date	March 2028	March 2028	March 2028
Senior Notes, 7.00%, Due January 2038, Net Of Unamortized Discount [Member]
Debt Instrument [Line Items]
Total unsecured debt	343	343	343
Debt instrument interest rate	7.00%	7.00%	7.00%
Maturity date	January 2038	January 2038	January 2038
Other Debt Securities [Member]
Debt Instrument [Line Items]
Total secured debt	13	13	14
Total unsecured debt	$ 64	$ 55	$ 25

Interest rate stated in the contractual debt agreement.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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