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Tax - Summary of Unrecognized Deferred Tax Based on Expiry Date (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
2025    
Unrecognised deferred tax position [line items]    
Gross $ 0 $ 11
Unrecognised deferred tax 0 2
2026    
Unrecognised deferred tax position [line items]    
Gross 6 7
Unrecognised deferred tax 1 1
2027    
Unrecognised deferred tax position [line items]    
Gross 6 7
Unrecognised deferred tax 1 1
2029    
Unrecognised deferred tax position [line items]    
Gross 10 10
Unrecognised deferred tax 10 10
2032    
Unrecognised deferred tax position [line items]    
Gross 15 15
Unrecognised deferred tax 15 15
After 2032    
Unrecognised deferred tax position [line items]    
Gross 34 21
Unrecognised deferred tax $ 34 $ 21