ALLIANCES - Financial Information Pertaining to Alliances (Ono) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Alliance Statement [Line Items]
Total Revenues	$ 48,300	$ 45,006	$ 46,159
Ono
Alliance Statement [Line Items]
Total Revenues	491	588	657
Alliance revenues
Alliance Statement [Line Items]
Total Revenues	$ 14,066	13,151	12,743
Alliance revenues | Ono
Alliance Statement [Line Items]
Co-promotion fee percentage	60.00%
Total Revenues	$ 333	408	441
Alliance revenues | Ono | Maximum
Alliance Statement [Line Items]
Profit sharing involving only one compound	80.00%
Alliance revenues | Ono | Minimum
Alliance Statement [Line Items]
Profit sharing involving only one compound	20.00%
Alliance revenues | North America | Ono
Alliance Statement [Line Items]
Royalty rate due to regulatory approvals	4.00%
Alliance revenues | Rest of World Except Japan, South Korea and Taiwan | Ono
Alliance Statement [Line Items]
Royalty rate due to regulatory approvals	15.00%
Net product sales
Alliance Statement [Line Items]
Total Revenues	$ 46,778	43,778	44,671
Net product sales | Alliance revenues
Alliance Statement [Line Items]
Total Revenues	13,587	12,543	12,001
Net product sales | Alliance revenues | Ono
Alliance Statement [Line Items]
Total Revenues	$ 158	$ 180	$ 216