XML 54 R39.htm IDEA: XBRL DOCUMENT v3.22.0.1
CASH AND CASH EQUIVALENTS (Tables)
12 Months Ended
Dec. 31, 2021
Cash and cash equivalents [abstract]  
Disclosure of cash and cash equivalents
As of December 31,
US$ MILLIONS20212020
Cash$43 $
Cash equivalents(1)
426 184 
Total cash and cash equivalents$469 $192 
(1)Short-term, highly liquid investments with maturities of less than 90 days at acquisition that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.