Retirement Plans (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jul. 31, 2021	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Defined Benefit Plan Disclosure [Line Items]
Number of hours required for participation in defined benefit and defined contribution plans		1,000 hours or more
Liability under qualified defined contribution plan		$ 83	$ 74
Settlement charges		96	84	$ 58
Defined benefit plan, amount of transferred pension plan assets	$ 256
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement charges		$ (96)	$ (74)	$ (45)
Expected long-term return on plan assets		5.75%	6.25%	6.50%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Change Due to Subsequent Interim Measurement, Weighted-Average Expected Long-term Rate of Return on Plan Assets		4.60%
Unfunded commitments to certain of these investments		$ 37	$ 39
Pension Plan [Member] | Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of investment lock-up period, in years		1 year	1 year
Pension Plan [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of investment lock-up period, in years		8 years	8 years
Pension Plan [Member] | Equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for equity securities in defined benefit plan		5.00%
Pension Plan [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for equity securities in defined benefit plan		88.00%
Pension Plan [Member] | Real Estate Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for equity securities in defined benefit plan		1.00%
Pension Plan [Member] | Private equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation for equity securities in defined benefit plan		6.00%
Defined Contribution Qualified Plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee retirement plan expense		$ 76	$ 68	$ 96
Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee retirement plan expense		1	1	$ 2
Investments		39	36
Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member] | Other Liabilities [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability under non-qualified defined contribution plan		39	36
Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member] | Accounts Payable and Accrued Liabilities [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability under non-qualified defined contribution plan		$ 1	$ 1