Retirement Plans (Reconciliation Of Benefit Obligations, Plan Assets, And Funded Status Of The Pension Plan) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Other Postretirement Benefits Plan [Member]
Projected benefit obligation, beginning of year	$ 156	$ 186
Service cost	0	0	$ 0
Interest cost	5	5	6
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment	0	(10)
Actuarial (gain) loss	(11)	(9)
Defined Benefit Plan, Benefit Obligation, Prescription Drug Subsidy Receipt	0	1
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(13)	(17)
Projected benefit obligation, end of year	137	156	186
Fair value of plan assets, beginning of year	0	0
Company contributions	13	17
Fair value of plan assets, end of year	0	0	0
Funded status at end of year	137	156
Accounts payable and accrued liabilities	(15)	(17)
Liability, Defined Benefit Plan, Noncurrent	122	139
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	(137)	(156)
Net actuarial loss	(41)	(35)
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax	(9)	(10)
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax	(50)	(45)
Supplemental Employee Retirement Plan
Projected benefit obligation, beginning of year	703	747
Service cost	0	0	0
Interest cost	23	22	22
Actuarial (gain) loss	(9)	20
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(73)	(86)
Projected benefit obligation, end of year	644	703	747
Fair value of plan assets, beginning of year	0	0
Company contributions	73	86
Fair value of plan assets, end of year	0	0	0
Funded status at end of year	644	703
Accounts payable and accrued liabilities	(68)	(69)
Other (assets) liabilities	(576)	(634)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	(644)	(703)
Net actuarial loss	218	244
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax	6	7
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax	224	251
Pension Plan [Member]
Projected benefit obligation, beginning of year	3,271	3,469
Service cost	5	6	5
Interest cost	109	104	108
Actuarial (gain) loss	(27)	82
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(347)	(390)
Projected benefit obligation, end of year	3,011	3,271	3,469
Fair value of plan assets, beginning of year	3,409	3,374
Actual return on plan assets	(44)	425
Company contributions	0	0
Fair value of plan assets, end of year	3,018	3,409	$ 3,374
Funded status at end of year	(7)	(138)
Other (assets) liabilities	(7)	(138)
Net actuarial loss	$ 1,109	$ 992