Financing Activities (Detail Of Debt Repayments) (Details) - USD ($) $ in Millions	9 Months Ended
	Nov. 03, 2018	Oct. 28, 2017
Extinguishment of debt	$ 344	$ 247
Repayments of Debt	351	554
seven point four five senior debentures due 2017 [Member]
Extinguishment of debt	0	300
Capital Lease and Other Long-Term Obligations [Member]
Extinguishment of debt	1	1
Nine Point Seven Five Percent Amortizing Debentures Due Two Thousand Twenty One [Member]
Extinguishment of debt	2	2
6.375% Senior Notes Due 2037
Extinguishment of debt	43	135
6.9% senior debentures due 2032
Extinguishment of debt	5	72
Nine Point Five Percent Amortizing Debentures Due Two Thousand Twenty One [Member]
Extinguishment of debt	4	4
6.7% Senior Debentures Due 2034
Extinguishment of debt	28	28
6.65% senior debentures due 2024
Extinguishment of debt	11	4
6.9% senior debentures due 2029
Extinguishment of debt	90	3
Four point five percent senior notes due two thousand thirty four[Member] [Member] [Member] [Member]
Extinguishment of debt	80	0
6.7% senior debentures due 2028
Extinguishment of debt	60	3
7.0% senior debentures due 2028
Extinguishment of debt	$ 27	$ 2