Retirement Plans -Retirement Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2026	Feb. 01, 2025	Feb. 03, 2024
Defined Benefit Plan Disclosure [Line Items]
Total retirement expense	$ 73	$ 74	$ 75
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Total net periodic benefit cost	(4)	(4)	(3)
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total net periodic benefit cost	(39)	(40)	(38)
Supplementary Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Total net periodic benefit cost	27	28	30
401(k) Qualified Defined Contribution Plan | Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost	88	89	85
Non-Qualified Defined Contribution Plan | Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost	$ 1	$ 1	$ 1