Financing (Detail Of Debt Repayments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Debt repaid	$ 1,803	$ 454	$ 1,245
5.90% Senior Notes Due 2016 [Member]
Extinguishment of debt	400	0	123
7.875% Senior Notes Due 2015 [Member]
Extinguishment of debt	205	0	38
7.45% Senior Debentures Due 2016 [Member]
Extinguishment of debt	64	0	2
7.5% Senior Debentures Due 2015 [Member]
Extinguishment of debt	31	0	0
5.75% Senior Notes Due 2014 [Member]
Extinguishment of debt	0	0	47
7.625% Senior Debentures Due 2013 [Member]
Extinguishment of debt	0	0	16
5.35% Senior Notes Due 2012 [Member]
Extinguishment of debt	616	0	484
5.875% Senior Notes Due 2013 [Member]
Extinguishment of debt	298	0	52
8.0% Senior Debentures Due 2012 [Member]
Extinguishment of debt	173	0	27
6.625% Senior Notes Due 2011 [Member]
Extinguishment of debt	0	330	170
7.45% Senior Debentures Due 2011 [Member]
Extinguishment of debt	0	109	41
10.625% Senior Debentures Due 2010 [Member]
Extinguishment of debt	0	0	150
8.5% Senior Notes Due 2010 [Member]
Extinguishment of debt	0	0	76
9.5% Amortizing Debentures Due 2021 [Member]
Extinguishment of debt	4	4	4
9.75% Amortizing Debentures Due 2021 [Member]
Extinguishment of debt	2	2	2
Capital Lease and Other Long-Term Obligations [Member]
Extinguishment of debt	$ 10	$ 9	$ 13