SUPPLEMENTAL BALANCE SHEET DETAILS - Narrative - Impairment of Goodwill and Intangible Assets (Details) $ in Millions		3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 24, 2024 USD ($)	Jun. 30, 2024 USD ($)	Oct. 01, 2023 USD ($)	Jul. 02, 2023 USD ($)	Jun. 30, 2024 USD ($) reporting_unit	Jul. 02, 2023 USD ($)	Dec. 31, 2023 USD ($)
Goodwill [Line Items]
Number of reporting units | reporting_unit					2
Goodwill and intangible impairment					$ 1,466
Goodwill		$ 1,079			1,079		$ 2,545
Effect of 300 point increase in discount rate on impairment loss		20
Amortization of intangible assets		47		$ 49	97	$ 99
In-process research and development (IPR&D)
Goodwill [Line Items]
Goodwill fair value recorded impairment							115
Spinoff | GRAIL
Goodwill [Line Items]
Amount of continuing cash flows after disposal	$ 974
GRAIL net assets	$ 2,738
Minimum | Spinoff | GRAIL
Goodwill [Line Items]
GRAIL net assets		400			400
Maximum | Spinoff | GRAIL
Goodwill [Line Items]
GRAIL net assets		770			770
GRAIL
Goodwill [Line Items]
Amount that exceeds carrying value		580			$ 580
Goodwill and intangible impairment		1,466	$ 712
Goodwill			3,600
Effect of 50 point increase in discount rate on impairment loss			200
Effect of 100 point increase in discount rate on impairment loss			$ 350
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
GRAIL | Maximum
Goodwill [Line Items]
Goodwill							$ 4,000
GRAIL | Measurement Input, Expected Term | Valuation Technique, Discounted Cash Flow
Goodwill [Line Items]
Goodwill Impairment, Measurement Input		2
GRAIL | Measurement Input, Expected Term | Valuation Technique, Discounted Cash Flow | In-process research and development (IPR&D)
Goodwill [Line Items]
Intangible Assets, Impairment, Measurement Input		15
GRAIL | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow
Goodwill [Line Items]
Goodwill Impairment, Measurement Input			0.240
GRAIL | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | In-process research and development (IPR&D)
Goodwill [Line Items]
Intangible Assets, Impairment, Measurement Input		0.465