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INVESTMENT PROPERTIES (Tables)
 12 Months Ended
Dec. 31, 2021
Investment property [abstract]  
Disclosure of detailed information about investment property
The following table presents the carrying amount for Brookfield Infrastructure’s investment properties:
US$ MILLIONS20212020
Balance at beginning of the year$518 $416 
Additions, net of disposals106 3 
Fair value adjustments42 68 
Foreign currency translation(11)31 
Balance at end of the year$655 $518 
The following table summarizes the valuation techniques and significant inputs for Brookfield Infrastructure’s investment property. Our partnership has classified all assets below under level 3 of the fair value hierarchy:
Segment Valuation technique Significant unobservable inputs Range of inputs
TransportDirect Income Capitalization Capitalization Rate 
6% to 14%
DataDirect Income CapitalizationCapitalization Rate
6% to 8%