XML 38 R25.htm IDEA: XBRL DOCUMENT v3.22.4
DIRECT OPERATING COSTS
12 Months Ended
Dec. 31, 2022
Direct Operating Costs [Abstract]  
DIRECT OPERATING COSTS DIRECT OPERATING COSTS
Direct operating costs are costs incurred to earn revenue and include all attributable expenses. The following table lists direct operating costs for the years ended December 31, 2022, 2021 and 2020.
US$ MILLIONS202220212020
Depreciation and amortization$211 $236 $283 
Transportation and distribution184 162 145 
Operations and maintenance56 49 39 
Compensation59 44 34 
Cost of inventory5 
Other27 27 22 
Total$542 $526 $527