INCOME TAXES (Effective Tax Rate Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]
U.S. Earnings/(Loss) before income taxes	$ 542	$ 2,338	$ 2,280
Non-U.S. Earnings before income taxes	4,433	3,630	2,851
Earnings Before Income Taxes	4,975	5,968	5,131
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. statutory rate, Amount	1,045	1,253	1,796
Deemed repatriation transition tax, Amount	0	(56)	2,611
Deferred tax remeasurement, Amount	0	0	285
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	849	94	0
Foreign tax effect of certain operations in Ireland, Puerto Rico and Switzerland	(68)	(202)	(561)
U.S. Federal valuation allowance release	25	119	0
U.S. Federal, state and foreign contingent tax matters, Amount	(13)	(55)	72
U.S. Federal research based credits, amount	(138)	(138)	(144)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	110
Non-tax deductible research and development charge, Amount	5	17	266
Puerto Rico excise tax, amount	(163)	(152)	(131)
Domestic manufacturing deduction, amount	0	0	(78)
State and local taxes (net of valuation allowance), amount	(16)	67	77
Foreign and other, Amount	(121)	74	(37)
Provision for Income Taxes	$ 1,515	$ 1,021	$ 4,156
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. statutory income tax rate	21.00%	21.00%	35.00%
Deemed repatriation transition tax, Percent	0.00%	(0.90%)	50.90%
Deferred tax remeasurement, Percent	0.00%	0.00%	5.60%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	17.10%	1.60%	0.00%
Foreign tax effect of certain operations in Ireland, Puerto Rico and Switzerland, Rate	(1.40%)	(3.40%)	(10.90%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	0.50%	2.00%	0.00%
U.S. Federal, state and foreign contingent tax matters, Rate	(0.30%)	(0.90%)	1.40%
U.S. Federal research based credits, Rate	(2.80%)	(2.30%)	(2.80%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	2.20%
Non-tax deductible research and development charge, Rate	0.10%	0.30%	5.20%
Puerto Rico excise tax, Rate	(3.30%)	(2.60%)	(2.60%)
Domestic manufacturing deduction, Percent	0.00%	0.00%	(1.50%)
State and local taxes (net of valuation allowance), Rate	(0.30%)	1.10%	1.50%
Foreign and other, Amount	(2.30%)	1.20%	(0.80%)
Effective Income Tax Rate Reconciliation, Percent	30.50%	17.10%	81.00%