Retirement Plans (Reconciliation Of Benefit Obligations, Plan Assets, And Funded Status Of The Pension Plan) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013
Supplementary Retirement Plan [Member]
Funded status at end of year	$ (770)	$ (795)
Accounts payable and accrued liabilities	(59)	(58)
Other liabilities	711	737
Defined Benefit Plan, Amounts Recognized in Balance Sheet	770	(795)
Net actuarial loss	176	212
Prior service credit	8	0
Total included in accumulated other comprehensive income	184	212
Pension Plan [Member]
Company contributions		150
Funded status at end of year	73	(168)
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent	73	0
Other liabilities	0	(168)
Defined Benefit Plan, Amounts Recognized in Balance Sheet	73	(168)
Net actuarial loss	931	1,326
Change in projected benefit obligation [Member] | Supplementary Retirement Plan [Member]
Projected benefit obligation, beginning of year	795	771
Service cost	6	6
Interest cost	32	35
Actuarial loss	(17)	76
Benefits paid	(54)	(51)
Actuarial gain due to curtailment	0	(42)
Projected benefit obligation, end of year	770	795
Change in projected benefit obligation [Member] | Pension Plan [Member]
Projected benefit obligation, beginning of year	3,555	3,458
Service cost	112	117
Interest cost	143	157
Actuarial loss	(117)	283
Benefits paid	(220)	(206)
Actuarial gain due to curtailment	0	(254)
Projected benefit obligation, end of year	3,473	3,555
Fair value of plan assets [Member] | Supplementary Retirement Plan [Member]
Benefits paid	(54)	(51)
Fair value of plan assets, beginning of year	0	0
Company contributions	54	51
Fair value of plan assets, end of year	0	0
Fair value of plan assets [Member] | Pension Plan [Member]
Benefits paid	(220)	(206)
Fair value of plan assets, beginning of year	3,387	3,069
Actual return on plan assets	379	374
Company contributions	0	150
Fair value of plan assets, end of year	$ 3,546	$ 3,387