ACQUISITIONS, DIVESTITURES, LICENSING AND OTHER ARRANGEMENTS - Schedule of Divestitures (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Proceeds	$ 289	$ 281	$ 852	$ 777
Divestiture (Gains)/Losses	8	5	1	5
Royalty Income	(286)	(284)	(844)	(820)
Diabetes business - royalties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Proceeds	287	278	839	774
Divestiture (Gains)/Losses	0	0	0	0
Royalty Income	(286)	(284)	(844)	(820)
Mature products and other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Proceeds	2	3	13	3
Divestiture (Gains)/Losses	8	5	1	5
Royalty Income	$ 0	$ 0	$ 0	$ 0