ALLIANCES - Financial Information Pertaining to Alliances (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
Cost of products sold	[1]	13,968	10,693	10,137
Marketing, selling and administrative		(8,414)	(7,772)	(7,814)
Other (income)/expense, net		893	(1,158)	576
Receivables – from alliance partners		10,747	10,921
Accounts payable – to alliance partners		3,602	3,259
Net product sales
Alliance Statement [Line Items]
Total Revenues		46,778	43,778	44,671
Alliance revenues
Alliance Statement [Line Items]
Total Revenues		479	608	742
Alliance revenues
Alliance Statement [Line Items]
Total Revenues		14,066	13,151	12,743
Cost of products sold		6,597	6,067	5,768
Marketing, selling and administrative		(295)	(263)	(223)
Research and development		237	137	49
Acquired IPRD		880	55	100
Other (income)/expense, net		(137)	(49)	(53)
Receivables – from alliance partners		221	233
Accounts payable – to alliance partners		1,578	1,394
Deferred income from alliances		222	274
Alliance revenues | Net product sales
Alliance Statement [Line Items]
Total Revenues		13,587	12,543	12,001
Alliance revenues | Alliance revenues
Alliance Statement [Line Items]
Total Revenues		$ 479	$ 608	$ 742

[1] Excludes amortization of acquired intangible assets.