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INVESTMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details)
$ in Thousands
 1 Months Ended 12 Months Ended
Jun. 24, 2024
USD ($)
Apr. 30, 2019
Dec. 29, 2024
USD ($)
day
fund
Sep. 29, 2024
USD ($)
Dec. 31, 2023
USD ($)
Oct. 01, 2023
USD ($)
Jan. 01, 2023
USD ($)
Oct. 02, 2022
USD ($)
Schedule of Investments [Line Items]                
Short-term Investments     $ 93,000   $ 6,000      
Discontinued Operation Gain Loss On Disposal Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag     unrealized loss          
Strategic equity investments, without readily determinable fair values     $ 26,000   28,000      
Revenue     $ 4,372,000   4,504,000   $ 4,584,000  
GRAIL                
Schedule of Investments [Line Items]                
Contingent value right, terms     12 years          
Covered revenues of GRAIL, contingent consideration liability       $ 117,000   $ 85,000   $ 42,000
Payment for contingent consideration     $ 1,100   803   396  
GRAIL | Payment Rights Of One Billion Each Twelve Years                
Schedule of Investments [Line Items]                
Contingent payment rights, first percentage     2.50%          
Business acquisition, contingent value rights, revenue threshold     $ 1,000,000          
GRAIL | Payment Rights Of Above One Billion Each Twelve Years                
Schedule of Investments [Line Items]                
Business acquisition, contingent value rights, revenue threshold     $ 1,000,000          
Contingent payment rights, second percentage     9.00%          
Helix Contingent Consideration                
Schedule of Investments [Line Items]                
Contingent consideration asset settlement     $ 83,000          
Helix Holdings I, LLC                
Schedule of Investments [Line Items]                
Contingent value right, terms   7 years            
Investee                
Schedule of Investments [Line Items]                
Revenue     $ 20,000   69,000   113,000  
Venture Capital Investment Fund (the Fund)                
Schedule of Investments [Line Items]                
Number of venture capital investment funds | fund     3          
Equity method investments     $ 201,000   168,000      
Unrealized gain (loss) on equity method investments     $ 5,000   (33,000)   $ (25,000)  
GRAIL | Revenue Risk Premium                
Schedule of Investments [Line Items]                
Revenue risk premium     0.09          
GRAIL | Measurement Input, Calculation Trailing Period                
Schedule of Investments [Line Items]                
Revenue risk premium | day     60          
Spinoff | GRAIL                
Schedule of Investments [Line Items]                
GRAIL net assets $ 2,738,000              
Discontinued operation, equity method investment retained after disposal, ownership interest after disposal 14.50%              
Loss on disposal of discontinued operation, net of tax     $ 309,000          
Contingent consideration liabilities     71,000   387,000      
Contingent consideration, noncurrent     70,000   $ 385,000      
Increase in 20% of revenue, increase in liability     17,000          
Decrease in 20% of revenue, decrease in liability     (18,000)          
Effect of change of additional 250 basis points, decrease in liability     (12,000)          
Effect of change of additional 250 basis points, increase in liability     $ 15,000          
Short-Term Investments | Spinoff | GRAIL                
Schedule of Investments [Line Items]                
GRAIL net assets $ 397,000