v3.26.3
Acquisitions (Narrative) (Details)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 28, 2026
USD ($)
Jun. 10, 2026
USD ($)
$ / shares
Sep. 25, 2026
USD ($)
business
Sep. 26, 2025
USD ($)
Sep. 25, 2026
USD ($)
business
Sep. 26, 2025
USD ($)
Jan. 03, 2026
USD ($)
Dec. 31, 2025
USD ($)
Business Combination [Line Items]                
Cash paid for acquisition         $ 9,881 $ 0    
Goodwill     $ 47,315   $ 47,315     $ 43,151
Number of businesses acquired | business     1   1      
Transaction-related costs     $ 84   $ 209      
Net earnings     1,235 $ 908 3,134 2,417    
Pro Forma net earnings     1,273 $ 808 3,129 $ 2,004    
Masimo Corporation                
Business Combination [Line Items]                
Cash paid for acquisition   $ 9,800     9,844      
Acquisition, price per share (in usd per share) | $ / shares   $ 180.00            
Revenue reported by acquired entity for last annual period (approximately)             $ 1,500  
Goodwill   $ 4,900 4,876   4,876      
Other intangible assets   5,000 5,006   5,006      
Consideration for pre-acquisition service         45      
Transaction-related costs         51      
Masimo Corporation | Fair value adjustment to inventory                
Business Combination [Line Items]                
Net earnings     84          
Pro Forma net earnings     84   130      
Masimo Corporation | Nonrecurring fair value adjustments to inventory, settlement of pre-acquisition share-based payment awards and change in control payments                
Business Combination [Line Items]                
Net earnings         158      
Masimo Corporation | Adjustment for settlement of pre-acquisition share-based payment awards and change-in control payments                
Business Combination [Line Items]                
Pro Forma net earnings         28      
Masimo Corporation | Developed Technology                
Business Combination [Line Items]                
Other intangible assets   3,400            
Masimo Corporation | Customer Relationships                
Business Combination [Line Items]                
Other intangible assets   895            
Masimo Corporation | Trade Names                
Business Combination [Line Items]                
Other intangible assets   $ 660            
Other                
Business Combination [Line Items]                
Cash paid for acquisition     37   37      
Revenue reported by acquired entity for last annual period (approximately)               10
Goodwill     26   26      
Deferred consideration     79   79      
Other intangible assets     $ 144   144      
Consideration for pre-acquisition service         $ 0      
StatLab Medical Products                
Business Combination [Line Items]                
Revenue reported by acquired entity for last annual period (approximately)               $ 250
StatLab Medical Products | Subsequent Event                
Business Combination [Line Items]                
Cash paid for acquisition $ 1,400