v3.26.3
Acquisition, In-Licensing Arrangement, Sale of Investment, Research and Development Arrangement and Collaborative Arrangement - Sale of Investment (Details) - ViiV [Member] - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2026
Sep. 27, 2026
Sep. 28, 2025
Sep. 27, 2026
Sep. 28, 2025
Schedule of Equity Method Investments [Line Items]          
Equity method investment, ownership percentage 11.70%        
Proceeds from sale of investment $ 1,875     $ 1,875 $ 0
Dividend income   $ 58 $ 72 $ 239 $ 184