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GOODWILL GOODWILL (Tables)
6 Months Ended
Jun. 30, 2021
Disclosure of reconciliation of changes in goodwill [abstract]  
Disclosure of goodwill [Table Text Block]
The following table presents the carrying amount for our company’s goodwill:
As of
US$ MILLIONSJune 30, 2021December 31, 2020
Balance at beginning of the period$528 $667 
Foreign currency translation and other14 (139)
Ending Balance$542 $528