Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020	Feb. 27, 2021	Jan. 30, 2021
Macy's sales to total Company sales	88.00%	89.00%	88.00%	88.00%
Percentage of digital sales	32.00%	54.00%	34.00%	49.00%
Contract with Customer, Refund Liability	$ 196	$ 140	$ 196	$ 140		$ 159
Contract with Customer, Right to Recover Product	115	114	115	114		103
Contract with Customer, Liability, Current	$ 547	$ 675	$ 547	$ 675		$ 616
Minimum [Member]
Sales decrease benchmark percentage			34.00%
Sales decrease percentage					34.00%

% of Macy's sales to entire Company sales

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- Definition

Percentage of digital sales to net sales.

+ References

No definition available.

+ Details

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- Definition

Sales decrease benchmark percentage under credit program agreement.

+ References

No definition available.

+ Details

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- Definition

Sales decrease percentage rolling twelve months under credit program agreement.

+ References

No definition available.

+ Details

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 55
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=121551570&loc=SL49130611-203046-203046

+ Details

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Period Type:	instant

- Definition

Amount of right to recover product from customer on settling refund liability.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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