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INVESTMENT PROPERTIES (Tables)
 12 Months Ended
Dec. 31, 2017
Investment property [abstract]  
Disclosure of detailed information about investment property
The following table presents the carrying amount for Brookfield Infrastructure’s investment properties:
US$ MILLIONS
2017
 
2016
Balance at beginning of the year
$
154

 
$
153

Additions, net of disposals
—

 
3

Non-cash additions
—

 
10

Fair value adjustments
23

 
12

Foreign currency translation
15

 
(24
)
Balance at end of the year
$
192

 
$
154

Our partnership has classified all assets below under level 3 of the fair value hierarchy:
Segment
 
Valuation technique
 
Significant unobservable inputs
 
Range of inputs
Transport
 
Direct Income Capitalization
 
Capitalization Rate
 
6% to 14%