Properties and Leases - Lease Liability Maturity (Details) - USD ($) $ in Millions	Feb. 03, 2024	Jan. 28, 2023
Finance Leases
2024	$ 3
2025	3
2026	2
2027	2
2028	1
After 2027	10
Total undiscounted lease payments	21
Less amount representing interest	7
Total lease liabilities	14
Operating Leases
2024	357
2025	385
2026	368
2027	350
2028	328
After 2027	4,737
Total undiscounted lease payments	6,525
Less amount representing interest	3,195
Total lease liabilities	3,330
Total
2024	360
2025	388
2026	370
2027	352
2028	329
After 2027	4,747
Total undiscounted lease payments	6,546
Less amount representing interest	3,202
Total lease liabilities	3,344	$ 3,298
Lessee, operating lease, option to extend, reasonably certain	2,750
Lessee, operating lease, lease not yet commenced, liability incurred	77
Operating lease, payment, non-lease component	978
Operating lease, payment, non-lease component, option to extend, reasonably certain	$ 740

Entire Lease Liabilities, Payments Due [Abstract]

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- Definition

Lease, Liability

+ References

No definition available.

+ Details

Name:	m_LeaseLiability
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- Definition

Lease, Liability, Payments Due, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lease, Liability, Payments, Due After Year Five, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lease, Liability, Payments, Due Next Twelve Months, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lease, Liability, Payments, Due Year Five, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lease, Liability, Payments, Due Year Four, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lease, Liability, Payments, Due Year Three, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lease, Liability, Payments, Due Year Two, (Finance and Operating)

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Lease, Liability, Undiscounted Excess Amount, (Finance and Operating)

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Lease Not Yet Commenced, Liability Incurred

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Option to Extend Reasonably Certain

+ References

No definition available.

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- Definition

Operating Lease, Payment, Non-Lease Component

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No definition available.

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Period Type:	instant

- Definition

Operating Lease, Payment, Non-Lease Component, Option to Extend, Reasonably Certain

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- References

No definition available.

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Name:	us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

+ Details

Name:	us-gaap_FinanceLeaseLiability
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease.

+ References

+ Details

Name:	us-gaap_FinanceLeaseLiabilityPaymentsDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive
Namespace Prefix:	us-gaap_
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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Name:	us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive
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- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Balance Type:	credit
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- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Balance Type:	credit
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- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

+ References

+ Details

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- References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

+ Details

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