v3.26.1
Investments - Narrative (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]          
Contractual maturities     37 months    
Continuous unrealized loss position, 12 months or greater, fair value $ 14   $ 14   $ 14
Continuous unrealized loss position, fair value 1,097   1,097   171
Strategic investments 2,073   2,073   $ 1,542
Level 3          
Debt Securities, Available-for-sale [Line Items]          
Equity securities without readily determinable fair value, upward price adjustment, annual amount $ 273 $ 0 $ 360 $ 0