INCOME TAXES (Deferred Taxes and Valuation Allowance) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Components of Deferred Tax Assets [Abstract]
Foreign net operating loss carryforwards	$ 2,480	$ 2,978
State net operating loss and credit carryforwards	263	121
U.S. Federal net operating loss and credit carryforwards	88	67
Deferred income	160	188
Milestones payments and license fees	558	552
Intercompany profit and other inventory items	56	114
Other foreign deferred tax assets	370	327
Share-based compensation	521	54
Other	434	377
Total deferred tax assets	4,930	4,778
Valuation allowance	(2,844)	(3,193)
Total deferred tax assets, net	2,086	1,585
Components of Deferred Tax Liabilities [Abstract]
Depreciation	(113)	(61)
Acquired intangible assets	(7,387)	(220)
Goodwill and other	(530)	(533)
Deferred Tax Liabilities, Gross	8,030	814
Deferred Tax Liabilities, Net	5,944
Deferred Tax Assets, Net		771
Deferred Tax Assets, Net, Classification [Abstract]
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	510	815
Deferred Tax Liabilities, Net, Noncurrent	(6,454)	(19)
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	278	252	$ 174
Provision	3,725	2,739	2,090
Utilization	(3,705)	(2,707)	(2,015)
Foreign currency translation	(2)	(6)	3
Balance at end of year	412	278	252
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	3,193	2,827	3,078
Provision	75	458	50
Utilization	(423)	(43)	(335)
Foreign currency translation	(132)	(48)	341
Acquisitions	228	0	2
Non U.S. rate change	(97)	(1)	(309)
Balance at end of year	2,844	3,193	$ 2,827
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Components of Deferred Tax Liabilities [Abstract]
Deferred Tax Liabilities, Net	$ 0	$ 25