Share-Based Payments - Performance stock units (Details) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
|
Jun. 30, 2025
shares
|
Dec. 31, 2025
USD ($)
shares
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2023
USD ($)
|
|
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||||
| Number of shares on conversion (in shares) | 1 | |||
| Total share based payment expense | $ | $ 128 | $ 147 | $ 164 | |
| Performance stock units (PSUs) | ||||
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||||
| Number of shares on conversion (in shares) | 1 | |||
| Vesting period (in years) | 3 years | |||
| Maximum upside payout percentage | 1.50 | |||
| Numbers of stock units granted in the year (in shares) | 30,360 | |||
| Total share based payment expense | $ | $ 6 | |||