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Changes in Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2025
Equity [Abstract]  
Changes in Accumulated Other Comprehensive Income (Loss) Changes in Accumulated Other Comprehensive Income (Loss)
The following table summarizes the changes in accumulated other comprehensive income (loss), which is reported as a component of shareholders’ equity:
Years ended
December 31, 2025December 31, 2024December 31, 2023
(in US $ millions)
Balance, beginning of the year(10)4 (16)
Other comprehensive income (loss) before reclassifications
9 (27)7 
Gain on cash flow hedges reclassified from accumulated other comprehensive income (loss) to earnings:
Sales and marketing1 2 3 
Research and development4 5 9 
General and administrative1 1 1 
Tax effect on unrealized gain (loss) on cash flow hedges(4)5 — 
Other comprehensive income (loss), net of tax11 (14)20 
Balance, end of the year1 (10)4