EBP, Age For Withdrawl from Vested Accounts

No definition available.

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Period Type:	duration

- Definition

Fixed rate annual contribution for eligible participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionAnnualFixedRateContributionPercentage
Namespace Prefix:	ms_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Employer Contribution, Company Match

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionCompanyMatch
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

EBP, Employer Contribution, Company Match Covered By Forfeitures

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionCompanyMatchCoveredByForfeitures
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

EBP, Employer Contribution, Compensation Match Per Dollar

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionCompensationMatchPerDollar
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

EBP, Employer Contribution, Employee Pay Threshold

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionEmployeePayThreshold
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

EBP, Employer Contribution, Maximum Compensation Match

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionMaximumCompensationMatch
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Minimum Vesting service period for company contribution and/ or investment earning to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions.

+ References

No definition available.

+ Details

Name:	ms_EBPEmployerContributionVestingServicePeriod
Namespace Prefix:	ms_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Highly Compensated Employees, Earned Income Threshold

+ References

No definition available.

+ Details

Name:	ms_EBPHighlyCompensatedEmployeesEarnedIncomeThreshold
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

EBP, Note Receivable from Participant, Maximum Outstanding Loans

+ References

No definition available.

+ Details

Name:	ms_EBPNoteReceivableFromParticipantMaximumOutstandingLoans
Namespace Prefix:	ms_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

EBP, Participant Contribution, Catch-Up Contribution to Eligible Compensation, Before-Tax and/or Roth after-tax, Percentage

+ References

No definition available.

+ Details

Name:	ms_EBPParticipantContributionCatchUpContributionToEligibleCompensationBeforeTaxAndorRothAfterTaxPercentage
Namespace Prefix:	ms_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Contribution, Contribution to Eligible Compensation, Before-Tax and/or Roth after-tax, Percentage

+ References

No definition available.

+ Details

Name:	ms_EBPParticipantContributionContributionToEligibleCompensationBeforeTaxAndorRothAfterTaxPercentage
Namespace Prefix:	ms_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Contribution, Contribution to Eligible Compensation, Highly Compensated Employees, Non-Roth after-tax, Percentage

+ References

No definition available.

+ Details

Name:	ms_EBPParticipantContributionContributionToEligibleCompensationHighlyCompensatedEmployeesNonRothAfterTaxPercentage
Namespace Prefix:	ms_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Contribution, Contribution to Eligible Compensation, Non-Roth after-tax, Percentage

+ References

No definition available.

+ Details

Name:	ms_EBPParticipantContributionContributionToEligibleCompensationNonRothAfterTaxPercentage
Namespace Prefix:	ms_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems
Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of contribution receivable from employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule II))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 310
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478642/962-310-45-1

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount
Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

+ References

+ Details

Name:	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage
Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	dei_LegalEntityAxis=ms_EBP003Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ms_EBPEmployerContributionTypeAxis=ms_EBPEmployerContributionFixedContributionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap-ebp_EmployeeBenefitPlanContributionParticipatingEmployerAxis=ms_EBPEmployeeContributionEmployeePayThresholdOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap-ebp_EmployeeBenefitPlanContributionParticipatingEmployerAxis=ms_EBPEmployeeContributionEmployeePayThresholdTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Description of the Plan (Details)	12 Months Ended
Description of the Plan (Details)	Dec. 31, 2025 USD ($) loan	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
EBP, Description of Plan [Line Items]
Highly compensated employees, earned income threshold			$ 286,698.06
EBP 003
EBP, Description of Plan [Line Items]
Company match	$ 409,290,441	$ 392,290,569
Company match covered by forfeitures	8,620,349	9,010,409
Employer contributions	$ 414,432,926	397,705,435
Vesting period	3 years
Maximum borrowing, amount	$ 50,000
Maximum borrowing, to total account, percentage	50.00%
Maximum outstanding loans \| loan	2
Age for withdrawl of vested accounts	59 years 6 months
EBP 003 \| EBP, Employer Contribution, Fixed Contribution
EBP, Description of Plan [Line Items]
Employer contribution, fixed rate contribution, percentage	2.00%
Employer contributions	$ 13,762,833	$ 14,425,275
EBP 003 \| Minimum
EBP, Description of Plan [Line Items]
Maximum annual compensation to total compensation, percentage	1.00%
Maximum catch-up contribution, percentage	1.00%
Contribution to eligible compensation, non-roth after-tax, percentage	1.00%
Contribution to eligible compensation, highly compensated employees, non-roth after-tax, percentage	1.00%
EBP 003 \| Maximum
EBP, Description of Plan [Line Items]
Maximum annual compensation to total compensation, percentage	50.00%
Maximum catch-up contribution, percentage	50.00%
Contribution to eligible compensation, non-roth after-tax, percentage	50.00%
Contribution to eligible compensation, highly compensated employees, non-roth after-tax, percentage	9.00%
EBP 003 \| Maximum \| EBP, Employer Contribution, Fixed Contribution
EBP, Description of Plan [Line Items]
Participant compensation	$ 100,001
EBP 003 \| EBP, Employee Contribution, Scenerio One
EBP, Description of Plan [Line Items]
Compensation match per dollar	$ 1
Participant compensation matched, percentage	5.00%
Maximum compensation match	$ 13,750
EBP 003 \| EBP, Employee Contribution, Scenerio One \| Maximum
EBP, Description of Plan [Line Items]
Participant compensation	275,001
EBP 003 \| EBP, Employee Contribution, Scenerio Two
EBP, Description of Plan [Line Items]
Compensation match per dollar	$ 1
Participant compensation matched, percentage	4.00%
Maximum compensation match	$ 14,000
EBP 003 \| EBP, Employee Contribution, Scenerio Two \| Minimum
EBP, Description of Plan [Line Items]
Participant compensation	275,001
EBP 003 \| EBP, Employee Contribution, Scenerio Two \| Maximum
EBP, Description of Plan [Line Items]
Participant compensation	$ 100,001