Retirement Plans (Reconciliation Of Benefit Obligations, Plan Assets, And Funded Status Of The Supplementary Retirement Plan) (Details) (Supplementary Retirement Plan [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012
Funded status at end of year	$ (795)	$ (771)
Accounts payable and accrued liabilities	58	55
Defined Benefit Pension Plan, Liabilities, Noncurrent	737	716
Net actuarial (gain) loss	212	195
Prior service credit	0	(1)
Total included in accumulated other comprehensive income	212	194
Change in projected benefit obligation [Member]
Projected benefit obligation, beginning of year	771	688
Service cost	6	6
Interest cost	35	36
Actuarial loss	76	90
Benefits paid	(51)	(49)
Actuarial gain due to curtailment	(42)	0
Projected benefit obligation, end of year	795	771
Fair value of plan assets [Member]
Benefits paid	(51)	(49)
Fair value of plan assets, beginning of year	0	0
Company contributions	51	49
Fair value of plan assets, end of year	$ 0	$ 0