Taxes (Reconciliation Of Beginning And Ending Amount Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Balance, beginning of period	$ 172	$ 189	$ 170
Additions based on tax positions related to the current year	30	33	37
Additions for tax positions of prior years	0	0	0
Reductions for tax positions of prior years	(7)	(15)	(1)
Settlements	(3)	(23)	(1)
Statute expirations	(14)	(12)	(16)
Balance, end of period	178	172	189
Current income taxes				$ 12	$ 11	$ 31
Unrecognized tax benefits	$ 172	$ 189	$ 170	178	172	189
Long term deferred income taxes [Member]
Long-term uncertian tax positions				5	6	11
Other noncurrent liabilities [Member]
Long-term uncertian tax positions				$ 161	$ 155	$ 147