EQUITY (Changes in Equity) (Details) (USD $) Share data in Millions, unless otherwise specified	1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012	May 31, 2010	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares Issued, Balance at January 1,					2,208	2,205
Common Stock, Shares Issued, Balance at June 30,	2,208		2,208	2,208	2,208	2,208
Common Stock, Value, Issued, Balance at January 1,					$ 221,000,000	$ 220,000,000
Common Stock, Value, Issued, Balance at June 30,	221,000,000		221,000,000	221,000,000	221,000,000	221,000,000
Capital in Excess of Par Value of Stock, Balance at January 1,					2,694,000,000	3,114,000,000
Employee stock compensation plans, Capital in Excess of Par Value of Stock					(719,000,000)	(331,000,000)
Capital in Excess of Par Value of Stock, Balance at June 30,	2,783,000,000		1,975,000,000	2,783,000,000	1,975,000,000	2,783,000,000
Retained Earnings, Balance at January 1,					32,733,000,000	33,069,000,000
Net earnings attributable to BMS			536,000,000	645,000,000	1,145,000,000	1,746,000,000
Cash dividends declared					(1,163,000,000)	(1,154,000,000)
Retained Earnings, Balance at June 30,	33,661,000,000		32,715,000,000	33,661,000,000	32,715,000,000	33,661,000,000
Treasury Stock, Shares, Balance at January 1,					570	515
Stock repurchase program, Treasury Stock					10	27
Treasury Stock, Shares, Balance at June 30,	530		562	530	562	530
Cost of Treasury Stock, Balance at January 1,					(18,823,000,000)	(17,402,000,000)
Stock repurchase program, Cost of Treasury Stock					(364,000,000)	(875,000,000)
Cost of Treasury Stock, Balance at June 30,	(17,600,000,000)		(18,020,000,000)	(17,600,000,000)	(18,020,000,000)	(17,600,000,000)
Noncontrolling interest, Balance at January 1,					15,000,000	(89,000,000)
Net earnings attributable to noncontrolling interest					21,000,000	859,000,000
Distributions					(34,000,000)	(1,056,000,000)
Noncontrolling interest, Balance at June 30,	(286,000,000)		2,000,000	(286,000,000)	2,000,000	(286,000,000)
The increase in authorization of common stock repurchases	3,000,000,000
Stock repurchase program, Authorized amount		3,000,000,000
Net earnings attributable to noncontrolling interest, tax			1,000,000	90,000,000	13,000,000	319,000,000
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation plans, Shares						(3)
Employee stock compensation plans, Cost						1,000,000
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation plans, Shares					(18)	(12)
Employee stock compensation plans, Cost					$ 1,167,000,000	$ 677,000,000