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Lease liability and Right-of-use assets (Details 4) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of quantitative information about right-of-use assets [line items]      
Interest expense on lease liabilities $ 60 $ 62 $ 67
Expense relating to short-term leases for which recognition exemption has been used 3 6 4
Expense relating to leases of low-value assets for which recognition exemption has been used 6 7 7
Cash outflow 355 381 379
Cash outflows for short term and low value leases 9 13 11
Cash outflows for payments of leases interest 51 52 56
Repayment of lease liability $ 295 $ 316 $ 312
Weighted average interest rate lease liabilities 3.30% 3.20% 3.40%