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ACQUISITIONS - Schedule of Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Mar. 31, 2021	Mar. 04, 2021	Oct. 23, 2020
MYR GmbH
Intangible assets:
Finite-lived intangible assets		$ 845
Deferred income taxes, net		(513)
Other assets (and liabilities), net		(187)
Total identifiable net assets		1,335
Goodwill		226
Total consideration transferred		1,561
MYR GmbH | Acquired IPR&D
Intangible assets:
Acquired IPR&D	$ 1,200	$ 1,190
Immunomedics
Business Combination, Separately Recognized Transactions [Line Items]
Cash and cash equivalents			$ 726
Inventories			946
Intangible assets:
Deferred income taxes, net			(4,565)
Liability related to future royalties			(1,100)
Other assets (and liabilities), net			64
Total identifiable net assets			16,606
Goodwill			3,991
Total consideration transferred			20,597
Immunomedics | Acquired IPR&D
Intangible assets:
Acquired IPR&D			15,760
Immunomedics | Finite-lived intangible asset
Intangible assets:
Finite-lived intangible assets			4,600
Immunomedics | Outlicense contract
Intangible assets:
Finite-lived intangible assets			$ 175

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