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FINANCE COSTS, NET
 12 Months Ended
Dec. 31, 2021
Finance costs [Abstract]  
FINANCE COSTS, NET
14 n Finance Costs, Net
For the years ended December 31 2021 2020
Interest expense1
 $357  $342 
Amortization of debt issue costs 1  2 
Amortization of premium (1) (1)
Interest on lease liabilities 5  5 
Loss (gain) on interest rate hedges 3  (5)
Interest capitalized2
 (16) (24)
Accretion 48  41 
Loss on debt extinguishment —  15 
Finance income (42) (28)
Total $355  $347 
1Interest in the consolidated statements of cash flow is presented on a cash basis. In 2021, cash interest paid was $303 million (2020: $295 million).
2For the year ended December 31, 2021, the general capitalization rate was 6.00% (2020: 5.90%).