v3.25.0.1
Convertible Senior Notes (Tables)
12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Schedule of Convertible Debt
The net carrying amount of the outstanding Notes was as follows:
December 31, 2024December 31, 2023
(in US $ millions)
Principal920 920 
Unamortized offering costs(2)(4)
Net carrying amount918 916 
The following table sets forth the interest expense recognized related to the outstanding Notes:
Years ended
December 31, 2024December 31, 2023December 31, 2022
(in US $ millions)
Contractual interest expense
Amortization of offering costs
Total interest expense related to the outstanding Notes