ACQUISITIONS (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019	Nov. 20, 2019
Business Acquisition [Line Items]
Other assets	$ 3,465		$ 3,408
Goodwill	20,578	$ 22,488
Cormorant [Member]
Business Acquisition [Line Items]
Contingent and Regulatory Milestone Payments	100
Celgene [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	11,179		11,179
Receivables	2,652		2,652
Inventories	4,511		4,511
Property, plant, and equipment	1,065		1,342
Measurement period adjustments - Property, plant, and equipment	(277)
Intangible assets	63,927		64,027
Measurement period adjustments - Intangible assets	(100)
Otezla assets held-for-sale	13,400		13,400
Measurement period adjustments - Other assets	57
Accounts payable	(363)		(363)
Income taxes payable	(2,745)		(2,718)
Measurement period adjustments - Income taxes payable	(27)
Deferred income tax liabilities	(5,097)		(7,339)
Measurement period adjustments - Deferred income tax liabilities	2,242
Debt	(21,782)		(21,782)
Other liabilities	(4,002)		(4,017)
Measurement period adjustments - Other liabilities	15
Identifiable net assets acquired	66,210		64,300
Measurement period adjustments - Identifiable net assets acquired	1,910
Goodwill	14,059		15,969
Measurement period adjustments - Goodwill	(1,910)
Total consideration transferred	$ 80,269		$ 80,269

Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Income Taxes

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments, Deferred Income Tax Liabilities

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments, Net

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Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Income Taxes

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Contingent and Regulatory Milestone Payments

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination for which the initial accounting was incomplete.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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