INCOME TAXES (Deferred Taxes and Valuation Allowance) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 252	$ 174	$ 122
Provision	2,739	2,090	1,613
Utilization	(2,707)	(2,015)	(1,561)
Foreign currency translation	(6)	3	0
Balance at end of year	278	252	174
Components of Deferred Tax Assets [Abstract]
Foreign net operating loss carryforwards	2,978	2,872
State net operating loss and credit carryforwards	121	143
U.S. Federal net operating loss and credit carryforwards	67	99
Deferred income	188	212
Milestones payments and license fees	552	386
Pension and postretirement benefits	26	131
Intercompany profit and other inventory items	670	651
Other foreign deferred tax assets	327	312
Share-based compensation	54	60
Other	352	280
Total deferred tax assets	5,335	5,146
Valuation allowance	(3,193)	(2,827)
Total deferred tax assets, net	2,142	2,319
Components of Deferred Tax Liabilities [Abstract]
Depreciation	(61)	(11)
Acquired intangible assets	(220)	(216)
Goodwill and other	(533)	(527)
Total deferred tax liabilities	(814)	(754)
Deferred tax assets, net	1,328	1,565
Deferred Tax Assets, Net, Classification [Abstract]
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	1,371	1,610
Deferred Tax Liabilities, Net, Noncurrent	(18)	(45)
Total	1,328	1,565
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	2,827	3,078	3,534
Provision	458	50	39
Utilization	(43)	(335)	(355)
Foreign currency translation	(48)	341	(142)
Acquisitions	0	2	2
Non U.S. rate change	(1)	(309)	0
Balance at end of year	3,193	2,827	$ 3,078
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Components of Deferred Tax Liabilities [Abstract]
Total deferred tax liabilities	$ (25)	$ 0