INCOME TAXES (Deferred Taxes and Valuation Allowance) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Components of Deferred Tax Assets [Abstract]
Foreign net operating loss carryforwards		$ 2,872	$ 2,945
State net operating loss and credit carryforwards		143	114
U.S. Federal net operating loss and credit carryforwards		99	156
Deferred income		212	764
Milestones payments and license fees		386	534
Pension and postretirement benefits		131	358
Intercompany profit and other inventory items		651	1,241
Other foreign deferred tax assets		312	188
Share-based compensation		60	114
Internal transfer of intellectual property			629
Other		280	308
Total deferred tax assets		5,146	7,351
Total deferred tax assets, net		2,319	4,273
Components of Deferred Tax Liabilities [Abstract]
Depreciation		(11)	(125)
Acquired intangible assets		(216)	(344)
Goodwill and other		(527)	(855)
Total deferred tax liabilities		(754)	(1,324)
Deferred tax assets, net		1,565	2,949
Deferred Tax Assets, Net, Classification [Abstract]
Deferred income taxes, noncurrent		1,610	2,996
Income taxes payable, noncurrent		(45)	(47)
Total		1,565	2,949
Valuation Allowance [Line Items]
Valuation allowance		(2,827)	(3,078)
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 93	174	122	$ 93
Provision		2,090	1,613	1,059
Utilization		(2,015)	(1,561)	(1,030)
Balance at end of year		252	174	122
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	4,259	3,078	3,534	4,259
Provision		50	39	71
Utilization		(335)	(355)	(436)
Foreign currency translation		341	(142)	(366)
Acquisitions	$ 6	2	2
Non U.S. rate change		(309)
Balance at end of year		2,827	3,078	3,534
Foreign Net Operating Loss And Tax Credit Carryforwards [Member]
Valuation Allowance [Line Items]
Valuation allowance		(2,654)
State Net Operating Loss And Tax Credit Carryforwards [Member]
Valuation Allowance [Line Items]
Valuation allowance		(129)
US Federal Net Operating Loss Carryforwards [Member]
Valuation Allowance [Line Items]
Valuation allowance		(10)
Other US Federal [Member]
Valuation Allowance [Line Items]
Valuation allowance		(34)
Domestic Tax Authority [Member]
Components of Deferred Tax Assets [Abstract]
Net operating loss carryforwards		317
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards		317
Accounting Standards Update 2016-16 [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowance, Deferred Tax Asset, Explanation of Change		787
Accounting Standards Update 2016-09 [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Excess Tax Benefit from Share-based Compensation, Operating Activities		$ 39	$ 92	$ 147