ALLIANCES - Financial Information Pertaining to Alliances (Pfizer) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		$ 46,159	$ 46,385	$ 42,518
Cost of products sold – Profit sharing	[1]	10,137	9,940	11,773
Other (income)/expense, net		576	(720)	(2,314)
Receivables		9,886	9,369
Accounts payable		3,040	2,949
Net product sales
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		44,671	45,055	41,321
Eliquis
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		11,789	10,762	9,168
Pfizer
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		11,789	10,762	9,168
Alliance revenues
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		12,743	11,556	9,979
Cost of products sold – Profit sharing		5,768	5,227	4,485
Other (income)/expense, net		(53)	(62)	(74)
Receivables		317	320
Accounts payable		1,249	1,229
Deferred income		289	330
Alliance revenues | Net product sales
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		12,001	10,840	9,364
Alliance revenues | Pfizer
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		301	331	226
Cost of products sold – Profit sharing		5,604	5,064	4,331
Other (income)/expense, net		(42)	(36)	(55)
Receivables		191	235
Accounts payable		1,208	1,195
Deferred income		222	264
Alliance revenues | Pfizer | Net product sales
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total Revenues		$ 11,488	$ 10,431	$ 8,942
Alliance revenues | Pfizer | Eliquis | Maximum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Percentage of reimbursement for development costs from alliance partner		60.00%
Alliance revenues | Pfizer | Eliquis | Minimum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Percentage of reimbursement for development costs from alliance partner		50.00%

[1] Excludes amortization of acquired intangible assets.