EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

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

	Year Ended December 31,
Amounts in Millions, Except Per Share Data	2012		2011		2010
Net Earnings Attributable to BMS	$	1,960	$	3,709	$	3,102
Earnings attributable to unvested restricted shares		(1)		(8)		(12)
Net Earnings Attributable to BMS common shareholders	$	1,959	$	3,701	$	3,090
Earnings per share - basic	$	1.17	$	2.18	$	1.80
Weighted-average common shares outstanding - basic		1,670		1,700		1,713
Contingently convertible debt common stock equivalents		1		1		1
Incremental shares attributable to share-based compensation plans		17		16		13
Weighted-average common shares outstanding - diluted		1,688		1,717		1,727
Earnings per share - diluted	$	1.16	$	2.16	$	1.79
Anti-dilutive weighted-average equivalent shares - stock incentive plans		2		13		51