OTHER INTANGIBLE ASSETS (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
In-process research and development	$ 205		$ 548
Gross other intangible assets	4,954		5,436
Less: accumulated amortization	(3,236)		(3,118)
Other intangible assets	1,718		2,318
Impairment charge for peginterferon lambda intangible asset	310
Amortization expense	222	647
Licensing Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	1,126		1,162
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	2,358		2,486
Computer Software, Intangible Asset [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	$ 1,265		$ 1,240