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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2025
Fair Value Measurements  
Fair Value of Assets and Liabilities Measured on Recurring Basis

June 30, 

December 31, 

    

2025

    

2024

Quoted prices in active markets (Level 1):

Cash equivalents and money market funds

 

$

269

 

$

56

Equity securities

79

70

Significant other observable inputs (Level 2):

Available-for-sale securities (a)

 

551

 

445

Total assets measured at fair value

 

$

899

$

571

(a)Our available-for-sale securities primarily relate to debt securities with maturities over the next ten years.