Retirement Plans (Reconciliation Of Benefit Obligations, Plan Assets, And Funded Status Of The Pension Plan) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Other Postretirement Benefits Plan [Member]
Projected benefit obligation, beginning of year	$ 137	$ 156
Service cost	0	0	$ 0
Interest cost	5	5	5
Actuarial (gain) loss	5	(11)
Defined Benefit Plan, Benefit Obligation, Prescription Drug Subsidy Receipt	0	0
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(14)	(13)
Projected benefit obligation, end of year	133	137	156
Fair value of plan assets, beginning of year	0	0
Company contributions	14	13
Fair value of plan assets, end of year	0	0	0
Funded status at end of year	133	137
Accounts payable and accrued liabilities	(14)	(15)
Liability, Defined Benefit Plan, Noncurrent	119	122
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	(133)	(137)
Net actuarial loss	(30)	(41)
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax	(8)	(9)
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax	(38)	(50)
Supplemental Employee Retirement Plan
Projected benefit obligation, beginning of year	644	703
Service cost	0	0	0
Interest cost	21	23	22
Actuarial (gain) loss	87	(9)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(71)	(73)
Projected benefit obligation, end of year	681	644	703
Fair value of plan assets, beginning of year	0	0
Company contributions	71	73
Fair value of plan assets, end of year	0	0	0
Funded status at end of year	681	644
Accounts payable and accrued liabilities	(55)	(68)
Other (assets) liabilities	(626)	(576)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	(681)	(644)
Net actuarial loss	283	218
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax	6	6
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax	289	224
Pension Plan [Member]
Projected benefit obligation, beginning of year	3,011	3,271
Service cost	5	5	6
Interest cost	103	109	104
Actuarial (gain) loss	463	(27)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(261)	(347)
Projected benefit obligation, end of year	3,321	3,011	3,271
Fair value of plan assets, beginning of year	3,018	3,409
Actual return on plan assets	602	(44)
Company contributions	0	0
Fair value of plan assets, end of year	3,359	3,018	$ 3,409
Funded status at end of year	(38)	(7)
Other (assets) liabilities	(38)	(7)
Net actuarial loss	$ 1,086	$ 1,109