EXEMPT PARTY-IN-INTEREST TRANSACTIONS (Details) - EBP 002 - USD ($) $ in Thousands, shares in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Program's interest in the Savings Plan Master Trust, at fair value (Note 5)	$ 12,294,880	$ 11,025,847
Other Related Party and Party-in-Interest
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Asset held for investment, participant loan, after deemed distribution	$ 35,100	$ 34,600
Minimum
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Asset held for investment, participant loan, interest rate	3.25%
Minimum \| Other Related Party and Party-in-Interest
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Asset held for investment, participant loan, interest rate	3.25%
Maximum
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Asset held for investment, participant loan, interest rate	9.50%
Maximum \| Other Related Party and Party-in-Interest
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Asset held for investment, participant loan, interest rate		9.50%
Employer, Common Stock Fund \| Other Related Party and Party-in-Interest
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Program's interest in the Savings Plan Master Trust, at fair value (Note 5)	$ 3,800,000	$ 3,500,000
Bristol-Myers Squibb Company Stock \| Other Related Party and Party-in-Interest
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Investment, number of shares (in shares)	8.6	9.4
Investment, excluding plan interest in master trust, cost	$ 400,700	$ 435,300
Dividend income	$ 28,200

Amount, after deemed distribution, of participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(D)
-Publisher DOL-EBSA

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 I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

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Amount of increase in net asset available for benefit from dividend income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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-Topic 962
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Cost of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

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Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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Fair value of plan interest in master trust held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Interest rate on participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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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.

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