EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
Amounts in Millions, Except Per Share Data	2020		2019		2020		2019
Net (Loss)/Earnings Attributable to BMS Used for Basic and Diluted EPS Calculation	$	(85)	$	1,432	$	(860)	$	3,142
Weighted-Average Common Shares Outstanding – Basic	2,263		1,636		2,261		1,635
Incremental Shares Attributable to Share-Based Compensation Plans	—		1		—		2
Weighted-Average Common Shares Outstanding – Diluted	2,263		1,637		2,261		1,637
(Loss)/Earnings per Common Share
Basic	$	(0.04)	$	0.88	$	(0.38)	$	1.92
Diluted	(0.04)		0.87		(0.38)		1.92