CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Total Revenues		$ 11,073	$ 10,781
Cost of products sold	[1]	2,841	3,662
Marketing, selling and administrative		1,666	1,606
Research and development		2,225	2,372
Amortization of acquired intangible assets		2,513	2,282
Other (income)/expense, net		(702)	1,163
Total Expenses		8,543	11,085
Earnings Before Income Taxes		2,530	(304)
Provision for Income Taxes		501	462
Net Earnings		2,029	(766)
Noncontrolling Interest		8	9
Net (Loss)/Earnings Attributable to BMS		$ 2,021	$ (775)
Earnings Per Share, Basic		$ 0.90	$ (0.34)
Earnings Per Share, Diluted		$ 0.89	$ (0.34)
Net product sales [Member]
Total Revenues		$ 10,798	$ 10,541
Alliance and other revenues [Member]
Total Revenues		$ 275	$ 240

[1] Excludes amortization of acquired intangible assets