v3.26.3
Goodwill and Other Intangible Assets (Narrative) (Details)
3 Months Ended 9 Months Ended
Jun. 28, 2025
USD ($)
Sep. 25, 2026
USD ($)
Sep. 26, 2025
USD ($)
Jun. 27, 2025
USD ($)
reporting_unit
Sep. 25, 2026
USD ($)
Sep. 26, 2025
USD ($)
Dec. 31, 2025
USD ($)
Property, Plant, and Equipment [Line Items]              
Impairment charges   $ 52,000,000 $ 101,000,000   $ 52,000,000 $ 548,000,000  
Goodwill, impairment loss $ 0            
Goodwill   47,315,000,000     47,315,000,000   $ 43,151,000,000
Minimum              
Property, Plant, and Equipment [Line Items]              
Goodwill 1,200,000,000            
Maximum              
Property, Plant, and Equipment [Line Items]              
Goodwill $ 23,100,000,000            
Reporting Unit, Change in Businesses              
Property, Plant, and Equipment [Line Items]              
Number of reporting units | reporting_unit       2      
Reporting Units-Total              
Property, Plant, and Equipment [Line Items]              
Number of reporting units | reporting_unit       5      
Life Sciences              
Property, Plant, and Equipment [Line Items]              
Impairment charges       $ 0      
Goodwill, impairment loss       0      
Life Sciences | Trade Names              
Property, Plant, and Equipment [Line Items]              
Finite-lived intangible assets, net       $ 76,000,000      
Remaining useful life       8 years      
Life Sciences | Trade Names              
Property, Plant, and Equipment [Line Items]              
Impairment charges           432,000,000  
Impairment charges, after tax           328,000,000  
Biotechnology | Facility              
Property, Plant, and Equipment [Line Items]              
Impairment charges   $ 52,000,000     $ 52,000,000 15,000,000  
Biotechnology and Diagnostics Segments | Technology, Trade Name and Other Intangible Assets              
Property, Plant, and Equipment [Line Items]              
Impairment charges     $ 101,000,000     $ 101,000,000