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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Contingency [Line Items]
Income before income taxes	$ 1,503		$ 1,817	$ 1,351	$ 4,081
Income tax expense	$ (368)		$ (300)	$ (204)	$ (842)
Effective tax rate	24.50%		16.50%	15.10%	20.60%
In-process research and development impairment	$ 0		$ 0	$ 2,700	$ 0
Fair Value, Nonrecurring | In Process Research And Development Trodelvy For HR+/HER2-
Income Tax Contingency [Line Items]
In-process research and development impairment		$ 2,700		$ 2,700

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