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GOODWILL, INTANGIBLE ASSETS, AND ACQUISITIONS - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended								12 Months Ended
	May 31, 2024 USD ($) reporting_unit	Dec. 29, 2024 USD ($)	Sep. 29, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 01, 2023 USD ($)	Jan. 01, 2023 USD ($)	Oct. 02, 2022 USD ($)	Dec. 29, 2024 USD ($)	Dec. 31, 2023 USD ($)
Goodwill [Line Items]
Number of reporting units \| reporting_unit	2
Goodwill and intangible impairment										$ 1,466	$ 712
Goodwill impairment measurement input	2
Goodwill		$ 1,113				$ 2,545		$ 3,239		1,113	2,545
Sensitivity analysis of intangible assets impairment additional charges impact of 300 basis points										20
Developed Technology Rights
Goodwill [Line Items]
Useful life (in years)					10 years
Developed Technology Rights \| Fluent Bio Sciences
Goodwill [Line Items]
Useful life (in years)		10 years	7 years
Finite-lived intangible assets acquired		$ 19	$ 42
Customer relationships \| Fluent Bio Sciences
Goodwill [Line Items]
Useful life (in years)			11 years
Finite-lived intangible assets acquired			$ 2
GRAIL Inc
Goodwill [Line Items]
Goodwill potential impairment loss								$ 0
Fair value in excess of carrying amount (more than)						$ 950					950
Business combination impairment test percentage						23.00%
In-process research and development (IPR&D)
Goodwill [Line Items]
Goodwill fair value recorded impairment							$ 109			$ 3	6
Fair value of discount rate (as a percent)							19.00%
In-process research and development (IPR&D) \| Series of Individually Immaterial Business Acquisitions
Goodwill [Line Items]
Indefinite-lived intangible assets acquired					$ 35
Spinoff \| GRAIL Inc
Goodwill [Line Items]
Amount of continuing cash flows after disposal	$ 974
Minimum \| Spinoff \| GRAIL Inc
Goodwill [Line Items]
GRAIL net assets				$ 400
Maximum \| Spinoff \| GRAIL Inc
Goodwill [Line Items]
GRAIL net assets				770
Measurement Input, Expected Term
Goodwill [Line Items]
Intangible assets impairment measurement input										15
GRAIL
Goodwill [Line Items]
Goodwill amount that exceeds carrying value	580
Goodwill and intangible impairment				1,466			$ 712		$ 3,914
Goodwill							$ 3,600
Fair value of discount rate (as a percent)							24.00%		22.00%
GRAIL \| In-process research and development (IPR&D)
Goodwill [Line Items]
Goodwill fair value recorded impairment				$ 420
GRAIL \| Minimum
Goodwill [Line Items]
Goodwill						$ 3,000					$ 3,000
Goodwill impairment increase in discounted cash flow model discount rate							0.0050
Goodwill potential impairment loss							$ 200
GRAIL \| Maximum
Goodwill [Line Items]
Goodwill	$ 4,000
Goodwill impairment increase in discounted cash flow model discount rate							0.0100
Goodwill potential impairment loss							$ 350
GRAIL \| Measurement Input Cash Flow Period Member \| Valuation Technique, Discounted Cash Flow
Goodwill [Line Items]
Goodwill impairment measurement input	15
GRAIL \| Measurement Input, Discount Rate \| Valuation Technique, Discounted Cash Flow
Goodwill [Line Items]
Intangible assets impairment measurement input	0.465