Retirement Plans (Net Periodic Benefit Cost Of Supplemental Retirement Plan) (Details) (Supplementary Retirement Plan [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Amortization of net actuarial (gain) loss	$ 19
Total recognized in net periodic benefit cost and other comprehensive income	75	132	65
Other Comprehensive Income [Member]
Amortization of net actuarial (gain) loss	(17)	(8)	(3)
Amortization of prior service credit	1	1	1
Net actuarial (gain) loss	34	90	22
Total recognized in other comprehensive income	18	83	20
Net Periodic Pension Cost [Member]
Service cost	6	6	6
Interest cost	35	36	37
Amortization of net actuarial (gain) loss	17	8	3
Amortization of prior service credit	(1)	(1)	(1)
Defined Benefit Plan, Net Periodic Benefit Cost	$ 57	$ 49	$ 45