Comprehensive Income (Components Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jul. 30, 2016	Apr. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Accumulated Other Comprehensive Income (Loss), Beginning Balance		$ 40		$ 40	$ 35
Other Comprehensive Income (Loss) Before Reclassifications				(24)	16
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)				6	(10)
Current-period Other Comprehensive Income (Loss)	$ (20)		$ 9	(18)	6
Accumulated Other Comprehensive Income (Loss), Ending Balance	22		41	22	41
Other Income (Loss)	73		(2)	80	76
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	(3)	0	(3)	0
Available-for-sale Securities, Gross Realized Gains				(4)	0
Provision for Income Taxes	128		121	208	240
Net Income	252		202	405	453
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Beginning Balance		28		28	51
Other Comprehensive Income (Loss) Before Reclassifications				(10)	12
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)				0	0
Current-period Other Comprehensive Income (Loss)				(10)	12
Accumulated Other Comprehensive Income (Loss), Ending Balance	18		63	18	63
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Beginning Balance		4		4	(16)
Other Comprehensive Income (Loss) Before Reclassifications				(11)	4
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)				9	(10)
Current-period Other Comprehensive Income (Loss)				(2)	(6)
Accumulated Other Comprehensive Income (Loss), Ending Balance	2		(22)	2	(22)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss), Beginning Balance		8		8	0
Other Comprehensive Income (Loss) Before Reclassifications				(3)	0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)				(3)	0
Current-period Other Comprehensive Income (Loss)				(6)	0
Accumulated Other Comprehensive Income (Loss), Ending Balance	2		0	2	0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Other Income (Loss)	(5)		(27)	9	(10)
Provision for Income Taxes	0		0	0	0
Net Income	(5)		(27)	9	(10)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Other Income (Loss)			$ 0		$ 0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	0			1
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0			(3)
Available-for-sale Securities, Gross Realized Gains	$ 0	$ (4)		$ (4)