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Goodwill (Tables)
 9 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
The gross changes in the carrying amount of goodwill during the nine months ended September 30, 2025 and the year ended December 31, 2024 are as follows:
September 30, 2025December 31, 2024
(in US $ millions)
Balance, beginning of the period452 427 
Acquisitions(1)(2)
39 25 
Balance, end of the period491 452 
(1) During the nine months ended September 30, 2025, the Company completed the acquisition of Vantage Discovery Inc. (see note 18).
(2) During the year ended December 31, 2024, the Company completed individually immaterial acquisitions that resulted in goodwill being recognized.