v3.26.1
Fair Value Measurements (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value $ 775 $ 1,010
Money market funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 138 155
U.S. treasury securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 222 359
Corporate securities and commercial paper    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 406 487
Certificate of deposit    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 9 9
Level 1    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value 138 155
Level 1 | Money market funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 138 155
Level 1 | U.S. treasury securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 1 | Corporate securities and commercial paper    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 1 | Certificate of deposit    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value 637 855
Level 2 | Money market funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 2 | U.S. treasury securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 222 359
Level 2 | Corporate securities and commercial paper    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 406 487
Level 2 | Certificate of deposit    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 9 9
Level 3    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value 0 0
Level 3 | Money market funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 3 | U.S. treasury securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 3 | Corporate securities and commercial paper    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments 0 0
Level 3 | Certificate of deposit    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash, cash equivalents, and short-term investments $ 0 $ 0