v3.26.1
Segment, Geographic and Other Revenue Information - Narrative (Detail)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2026
USD ($)
Jun. 28, 2026
USD ($)
segment
Dec. 31, 2025
USD ($)
Segment Reporting [Line Items]      
Number of operating segments | segment   2  
Number of reportable segments | segment   1  
Total assets $ 201,131 $ 201,131 $ 208,160
Comirnaty [Member]      
Segment Reporting [Line Items]      
Remaining performance obligation 2,000 2,000  
Paxlovid [Member]      
Segment Reporting [Line Items]      
Remaining performance obligation 965 965  
Government and Government Sponsored [Member] | Paxlovid and Comirnaty [Member]      
Segment Reporting [Line Items]      
Deferred revenues 1,400 1,400 1,500
Deferred revenues, current 521 521 689
Deferred revenues, noncurrent 855 855 $ 826
Deferred revenue recognized $ (75) $ (133)