Retirement Plans and Other Benefits (Assumed Health Care Cost Trend Rates Related to Measurement of SERP Medical Plan Obligations) (Details)	12 Months Ended
Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Medical care \| Defined Benefit Obligations
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	6.30%	6.50%	6.50%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2025	2025	2025
Medical care \| Net Periodic Benefit Costs
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	6.50%	6.50%	7.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2025	2025	2025
Dental care \| Defined Benefit Obligations
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	5.00%	5.00%	5.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2020	2020	2019
Dental care \| Net Periodic Benefit Costs
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	5.00%	5.00%	5.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2020	2019	2018

Health Care Cost Trend Rates Assumptions [Line Items]

No definition available.

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- Definition

Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

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- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

+ References

+ Details

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- Definition

Year ultimate health care cost trend rate is expected to be reached, in CCYY format.

+ References

+ Details

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- Details

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- Details

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- Details

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- Details

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