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Right-of-use assets and Lease liabilities - Additional Disclosures Related to Leases (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Leases [Abstract]      
Interest expense on lease liabilities $ 17 $ 15 $ 13
Expense on short-term, low value and variable leases 3 3 7
Total cash outflows for leases 99 87 92
Lease liability payments 79 69 72
Interest payments 17 15 13
Short-term, low value and variable lease payments $ 3 $ 3 $ 7