Financing Activities (Detail Of Debt Repayments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Debt repaid	$ 5	$ 795
5.35% Senior Notes Due 2012 [Member]
Extinguishment of debt	0	616
8.0% Senior Debentures Due 2012 [Member]
Extinguishment of debt	0	173
9.5% Amortizing Debentures due Two Thousand Twenty One [Member]
Extinguishment of debt	2	2
9.75% Amortizing Debentures Due Two Thousand Twenty One [Member]
Extinguishment of debt	1	1
Capital Lease and Other Long-Term Obligations [Member]
Extinguishment of debt	$ 2	$ 3