v3.25.4

Deferred Compensation Plans and Carried Interest Compensation - Deferred Cash-Based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Compensation Related Costs [Abstract]
Deferred cash-based awards	$ 950	$ 770	$ 693
Return on referenced investments	764	672	668
Total	1,714	1,442	1,361
Retirement eligible awards	$ 401	$ 287	$ 259

The aggregate amount of the compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

No definition available.

+ Details

Name:	ms_DeferredCompensationArrangementWithIndividualCompensationExpenseAndReturnOnReferencedInvestments
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement with employees who satisfied retirement-eligible requirements under award terms that do not contain a service period.

+ References

No definition available.

+ Details

Name:	ms_DeferredCompensationArrangementWithIndividualCompensationExpenseRetirementEligibleAwards
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Deferred Compensation Arrangement with Individual, Return on Referenced Investments, Other

+ References

No definition available.

+ Details

Name:	ms_DeferredCompensationArrangementwithIndividualReturnonReferencedInvestmentsOther
Namespace Prefix:	ms_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_CompensationRelatedCostsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 710
-SubTopic 10
-Name Accounting Standards Codification
-Section 30
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483043/710-10-30-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-1

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

MORGAN STANLEY 10-K