Retirement Plans and Other Benefits (Narrative) (Details) - USD ($)		1 Months Ended	12 Months Ended				13 Months Ended
	Jan. 01, 2020	Jan. 30, 2021	Jan. 30, 2021	Feb. 01, 2020	Dec. 31, 2019	Feb. 02, 2019	Jan. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Plan participants years of service threshold					11 years
Accumulated projected benefit obligation		$ 706,000,000	$ 706,000,000	$ 727,000,000			$ 706,000,000
Future increases in medical plan costs to be incurred by retirees			100.00%
SERP Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated projected benefit obligation		12,000,000	$ 12,000,000				$ 12,000,000
Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Employer's contribution				$ 4,000,000
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent							5.00%
Defined contribution plan, employer matching contribution, percent of match	100.00%				25.00%		50.00%
Employer's matching vesting period	2 years				5 years
Employer's matching contribution			$ 13,000,000
Eligible service to qualified savings plans			28 days	28 days
Defined Contribution Plan Employer Matching Contribution Period Of Service			1 year	1 year
Defined Contribution Plan Employer Matching Contribution Minimum Number of Working Hours Required			1000 hours	1000 hours
Defined Contribution Maximum Percentage of Compensation Matched By Company					4.00%		1.00%
United States | Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount		19,500
Puerto Rico Plan [Member] | Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount		15,000
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension benefits paid			$ 67,000,000	$ 85,000,000
Discount rate, net periodic benefit costs			2.90%	4.00%		4.00%
Pension Benefits [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension benefits paid			$ 1,000,000	$ 2,000,000
Pension Benefits [Member] | United States | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer's contribution			55,000,000
Market-related value of plan assets		$ 661,000,000	$ 661,000,000	601,000,000			$ 661,000,000
Pension Benefits [Member] | Investment in Equity Securities [Member] | United States | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target composition of plan assets		36.50%	36.50%				36.50%
Pension Benefits [Member] | Investment in Equity Securities [Member] | CANADA | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target composition of plan assets		5.00%	5.00%				5.00%
Pension Benefits [Member] | Fixed Income Securities | United States | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target composition of plan assets		60.00%	60.00%				60.00%
Pension Benefits [Member] | Fixed Income Securities | CANADA | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target composition of plan assets		95.00%	95.00%				95.00%
Pension Benefits [Member] | Real Estate Investment Trust | United States | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target composition of plan assets		3.50%	3.50%				3.50%
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension benefits paid			$ 1,000,000	$ 2,000,000
Discount rate, net periodic benefit costs			3.00%	4.10%		3.70%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Market-related value of plan assets, Period for calculation			3 years
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Market-related value of plan assets, Period for calculation			5 years
Maximum [Member] | Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent		40.00%