CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues		$ 26,145	$ 22,561	$ 20,776
Cost of Goods and Services Sold	[1]	8,078	6,467	6,014
Marketing, selling and administrative		4,871	4,551	4,751
Research and development		6,148	6,332	6,468
Amortization of Acquired Intangible Assets		1,135	97	97
Other income (net)		938	(854)	(1,685)
Total Expenses		21,170	16,593	15,645
Earnings Before Income Taxes		4,975	5,968	5,131
Provision for Income Taxes		1,515	1,021	4,156
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		3,460	4,947	975
Net Income (Loss) Attributable to Noncontrolling Interest		21	27	(32)
Net Earnings Attributable to BMS		$ 3,439	$ 4,920	$ 1,007
Earnings per Common Share
Basic Earnings Per Common Share Attributable to BMS		$ 2.02	$ 3.01	$ 0.61
Diluted Earnings per Common Share Attributable to BMS		$ 2.01	$ 3.01	$ 0.61
Net product sales [Member]
Revenues		$ 25,174	$ 21,581	$ 19,258
Alliance and other revenues [Member]
Revenues		$ 971	$ 980	$ 1,518

[1] Excludes amortization of acquired intangible assets.