PROPERTY, PLANT AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2021

Property, plant and equipment [abstract]

Disclosure of detailed information about property, plant and equipment

US$ MILLIONS	Gross carrying amount		Accumulated depreciation		Accumulated fair value adjustments		Total
Balance at January 1, 2020	$	3,696	$	(567)	$	1,368	$	4,497
Additions, net of disposals	358		6		—		364
Non-cash additions	6		(3)		—		3
Depreciation expense	—		(131)		—		(131)
Fair value adjustments	—		—		215		215
Net foreign currency exchange differences	137		(24)		50		163
Balance at December 31, 2020	$	4,197	$	(719)	$	1,633	$	5,111
Additions, net of disposals	179		3		—		182
Non-cash disposals	(600)		162		(217)		(655)
Depreciation expense	—		(71)		—		(71)
Net foreign currency exchange differences	55		(10)		22		67
Balance at June 30, 2021	$	3,831	$	(635)	$	1,438	$	4,634