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FINANCE COSTS, NET
 12 Months Ended
Dec. 31, 2020
Finance Costs [Abstract]  
FINANCE COSTS, NET
14 n Finance Costs, Net
For the years ended December 31 2020 2019
Interest1
 $342  $435 
Amortization of debt issue costs 2  2 
Amortization of premium (1) (1)
Interest on lease liabilities 5  6 
Gain on interest rate hedges (5) (6)
Interest capitalized2
 (24) (14)
Accretion 41  75 
Loss on debt extinguishment 15  3 
Finance income (28) (31)
Total $347  $469 
1Interest in the consolidated statements of cash flow is presented on a cash basis. In 2020, cash interest paid was $295 million (2019: $333 million).
2For the year ended December 31, 2020, the general capitalization rate was 5.90% (2019: 6.30%).