Benefit Plans (Tables)

6 Months Ended

Jul. 31, 2021

Pension And Other Postretirement Benefit Expense [Abstract]

Schedule of Costs of Retirement Plans

The defined contribution plan expense and actuarially determined components of the net periodic benefit cost (income) associated with the defined benefit plans are as follows:

	13 Weeks Ended						26 Weeks Ended
	July 31, 2021			August 1, 2020			July 31, 2021			August 1, 2020
	(millions)						(millions)
401(k) Qualified Defined Contribution Plan	$	17		$	19		$	39		$	32
Pension Plan
Service cost	$	1		$	2		$	1		$	3
Interest cost		13			18			25			38
Expected return on assets		(43	)		(46	)		(83	)		(92	)
Recognition of net actuarial loss		9			10			17			20
	$	(20	)	$	(16	)	$	(40	)	$	(31	)
Supplementary Retirement Plan
Interest cost		3			4			6			8
Recognition of net actuarial loss		3			3			6			6
	$	6		$	7		$	12		$	14
Total Retirement Expense	$	3		$	10		$	11		$	15
Postretirement Obligations
Interest cost		—			1			—			2
Recognition of net actuarial gain		(2	)		(2	)		(3	)		(3	)
	$	(2	)	$	(1	)	$	(3	)	$	(1	)