SAVINGS PLAN MASTER TRUST - Schedule of Master Trust Major Classes of Investments (Details) - EBP 002 - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	$ 12,605,952	$ 11,318,213
Net Assets, at Contract Value (Note 6)	295,677	359,134
Total Net Assets	12,901,629	11,677,347
Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	12,294,880	11,025,847
Net Assets, at Contract Value (Note 6)	290,421	351,955
Total Net Assets	12,585,301	11,377,802
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	2,080,029	2,000,701
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	1,974,893	1,900,515
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Mutual Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	645,028	617,761
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Mutual Funds \| Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	582,257	559,639
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Bristol-Myers Squibb Company Stock \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	488,202	554,933
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Bristol-Myers Squibb Company Stock \| Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	466,530	530,957
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Money Market Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	347,141	330,035
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Money Market Funds \| Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	339,128	321,825
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Self-Directed Brokerage Accounts \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	599,658	497,972
Fair Value, Inputs, Level 1, Level 2, and Level 3 \| Self-Directed Brokerage Accounts \| Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	586,978	488,094
Level 1 \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	2,043,483	1,962,946
Level 1 \| Mutual Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	645,028	617,761
Level 1 \| Bristol-Myers Squibb Company Stock \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	488,202	554,933
Level 1 \| Money Market Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	347,141	330,035
Level 1 \| Self-Directed Brokerage Accounts \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	563,112	460,217
Level 2 \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	36,546	37,755
Level 2 \| Mutual Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 2 \| Bristol-Myers Squibb Company Stock \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 2 \| Money Market Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 2 \| Self-Directed Brokerage Accounts \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	36,546	37,755
Level 3 \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 3 \| Mutual Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 3 \| Bristol-Myers Squibb Company Stock \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 3 \| Money Market Funds \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
Level 3 \| Self-Directed Brokerage Accounts \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	0	0
NAV \| Common Collective Trusts \| Master Trust Total
EBP, Master Trust [Line Items]
Investment, fair value	10,525,923	9,317,512
NAV \| Common Collective Trusts \| Program's Interest in Master Trust
EBP, Master Trust [Line Items]
Investment, fair value	$ 10,319,987	$ 9,125,332