EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net earnings attributable to BMS used for Basic and Diluted EPS Calculation	$ (775)	$ 1,710
Weighted-average common shares outstanding - basic	2,258	1,634
Incremental shares attributable to share-based compensation plans	0	3
Weighted-average common shares outstanding - diluted	2,258	1,637
Earnings Per Share, Basic	$ (0.34)	$ 1.05
Earnings Per Share, Diluted	$ (0.34)	$ 1.04
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	138