EQUITY (Changes in Equity) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares Issued, Balance at January 1,			2,208	2,208
Common Stock, Shares Issued, Balance at June 30,	2,208	2,208	2,208	2,208
Common Stock, Value, Issued, Balance at January 1,			$ 221	$ 221
Common Stock, Value, Issued, Balance at June 30,	221	221	221	221
Capital in Excess of Par Value of Stock, Balance at January 1,			1,922	2,694
Employee stock compensation plans, Capital in Excess of Par			(427)	(719)
Debt Conversion, Capital in Excess of Par Value of Stock			(16)
Capital in Excess of Par Value of Stock, Balance at June 30,	1,479	1,975	1,479	1,975
Retained Earnings, Balance at January 1,			32,952	32,733
Net Earnings Attributable to BMS	333	536	1,270	1,145
Cash dividends declared			(1,196)	(1,163)
Retained Earnings, Balance at June 30,	33,026	32,715	33,026	32,715
Treasury Stock, Shares, Balance at January 1,			559	570
Treasury Stock, Shares, Balance at June 30,	550	562	550	562
Cost of Treasury Stock, Balance at January 1,			(17,800)	(18,823)
Stock repurchase program, Cost of Treasury Stock				(364)
Cost of Treasury Stock, Balance at June 30,	(17,174)	(18,020)	(17,174)	(18,020)
Noncontrolling interest, Balance at January 1,			82	15
Net earnings attributable to noncontrolling interest			1	21
Distributions			(31)	(34)
Noncontrolling interest, Balance at June 30,	52	2	52	2
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation plans, Shares			(8)	(18)
Debt conversion, Shares			(1)
Employee stock compensation plans, Cost			591	1,167
Debt conversion, cost			$ 35
Stock repurchase program, Treasury Stock				10