ACCRUED AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Millions	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Other Liabilities, Current [Abstract]
Rebates and returns	$ 3,209		$ 2,417
Employee compensation and benefits	639		848
Research and development	891		805
Dividends Payable, Current	668		669
Royalties	378		391
Liabilities related to the deal contingent forward interest rate swap	240		0
Branded Prescription Drug Fee	165		188
Liabilities related to assets held-for-sale	11		152
Litigation and other settlements	75		118
Operating Lease, Liability, Current	66	$ 40	0
Restructuring	24		85
Liability, Pension and Other Postretirement and Postemployment Benefits, Current	35		35
Deferred income	86		172
Income taxes payable	546		398
Accrued Interest	289		69
Other	710		712
Other liabilities, current	$ 8,032		$ 7,059