Retirement Plans - Obligations and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 29, 2021	Jan. 31, 2020
Change in plan assets:
Fair value of plan assets at beginning of year	$ 53
Fair value of plan assets at end of year	55	$ 53
Pension Plan [Member]
Change in benefit obligation:
Benefit obligation at beginning of year	76	71
Interest cost	2	3
Benefits paid	(5)	(5)
Actuarial loss (gain)	3	7
Settlements	(6)	0
Benefit obligation at end of year	70	76
Change in plan assets:
Fair value of plan assets at beginning of year	53	52
Actual return on plan assets	5	6
Employer contributions	8	0
Benefits paid	(5)	(5)
Settlements	(6)	0
Fair value of plan assets at end of year	55	53
Unfunded status	15	23
Retiree Health Reimbursement Account Plan [Member]
Change in benefit obligation:
Benefit obligation at beginning of year	17	15
Interest cost	0	1
Benefits paid	(1)	(1)
Actuarial loss (gain)	(2)	2
Settlements	0	0
Benefit obligation at end of year	14	17
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	1	1
Benefits paid	(1)	(1)
Settlements	0	0
Fair value of plan assets at end of year	0	0
Unfunded status	$ 14	$ 17