v3.26.3
Segment, Geographic and Other Revenue Information - Narrative (Detail)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 27, 2026
USD ($)
Sep. 27, 2026
USD ($)
segment
Dec. 31, 2025
USD ($)
Segment Reporting [Line Items]      
Number of operating segments | segment   2  
Number of reportable segments | segment   1  
Total assets $ 204,544 $ 204,544 $ 208,160
Comirnaty [Member]      
Segment Reporting [Line Items]      
Remaining performance obligation 1,700 1,700  
Paxlovid [Member]      
Segment Reporting [Line Items]      
Remaining performance obligation 943 943  
Government and Government Sponsored [Member] | Paxlovid and Comirnaty [Member]      
Segment Reporting [Line Items]      
Deferred revenues 1,300 1,300 1,500
Deferred revenues, current 441 441 689
Deferred revenues, noncurrent 888 888 $ 826
Deferred revenue recognized $ 46 $ 180