Financing Activities (Detail Of Debt Repayments) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013
Debt repaid	$ 462	$ 121
5.75% Senior Notes due 2014 [Member]
Extinguishment of debt	453	0
7.625% Senior Debentures [Member]
Extinguishment of debt	0	109
9.5% Amortizing Debentures due Two Thousand Twenty One [Member]
Extinguishment of debt	4	4
9.75% Amortizing Debentures Due Two Thousand Twenty One [Member]
Extinguishment of debt	2	2
Capital Lease and Other Long-Term Obligations [Member]
Extinguishment of debt	$ 3	$ 6