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CASH AND CASH EQUIVALENTS (Tables)
 12 Months Ended
Dec. 31, 2022
Cash and cash equivalents [abstract]  
Disclosure of cash and cash equivalents
US$ MILLIONS20222021
Cash$684 $745 
Cash equivalents(1)
454 505 
Restricted cash(2)
141 156 
Total cash and cash equivalents$1,279 $1,406 
(1)Short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.
(2)Restricted cash primarily relates to our partnership’s financing arrangements, including debt service accounts. Cash that becomes unrestricted within one year of the reporting date is classified as cash and cash equivalents.