PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2021

Property, plant and equipment [abstract]

Disclosure of detailed information about property, plant and equipment

Depreciation of an asset commences when it is available for use. PP&E is depreciated for each component of the asset classes as follows:

Buildings	Up to 50 years
Right-of-use assets	Up to 40 years but not exceeding the term of the lease
Machinery and equipment	Up to 20 years

(US$ MILLIONS)	Land		Buildings		Machinery and equipment		Others		Right-of-use assets		Total assets
Gross carrying amount
Balance at January 1, 2020	$	72	$	2,253	$	1,004	$	535	$	540	$	4,404
Additions (cash and non-cash)	—		25		167		13		72		277
Dispositions	—		(2)		(64)		(21)		(62)		(149)
Acquisitions through business combinations	—		3		11		—		3		17
Transfers and assets reclassified as held for sale (1)	—		26		19		(73)		—		(28)
Foreign currency translation and other	14		290		55		22		15		396
Balance at December 31, 2020	$	86	$	2,595	$	1,192	$	476	$	568	$	4,917
Additions (cash and non-cash)	—		76		172		6		61		315
Dispositions	—		(9)		(119)		(3)		(24)		(155)
Transfers and assets reclassified as held for sale (1)	—		(4)		(2)		4		(1)		(3)
Foreign currency translation and other	(5)		(159)		(42)		(23)		(25)		(254)
Balances at December 31, 2021	$	81	$	2,499	$	1,201	$	460	$	579	$	4,820
Accumulated depreciation and impairment
Balance at January 1, 2020	$	—	$	(55)	(197)		(19)		(66)		(337)
Depreciation/depletion/impairment expense	—		(60)		(164)		(25)		(86)		(335)
Dispositions	—		4		37		10		36		87
Transfers and assets reclassified as held for sale (1)	—		16		(5)		7		—		18
Foreign currency translation and other	—		(12)		(15)		(2)		(3)		(32)
Balances at December 31, 2020 (2)	$	—	$	(107)	$	(344)	$	(29)	$	(119)	$	(599)
Depreciation/depletion/impairment expense	—		(67)		(171)		(19)		(84)		(341)
Dispositions	—		4		111		2		21		138
Transfers and assets reclassified as held for sale (1)	—		(16)		2		—		—		(14)
Foreign currency translation and other	—		8		10		2		12		32
Balance at December 31, 2021 (2)	$	—	$	(178)	$	(392)	$	(44)	$	(170)	$	(784)
Net book value
December 31, 2020	$	86	$	2,488	$	848	$	447	$	449	$	4,318
December 31, 2021	$	81	$	2,321	$	809	$	416	$	409	$	4,036

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(1)Includes assets that were reclassified as held for sale and subsequently disposed. See Note 7 and Note 8 for additional information.

The right-of-use assets and assets subject to operating leases in which the company is a lessor by class of underlying asset as at December 31, 2021 and the depreciation expense of right-of-use assets by class of underlying asset for the year ended December 31, 2021 are outlined below:

	Year ended December 31, 2021
(US$ MILLIONS)	Land		Buildings		Machinery and equipment		Others		Total
Lessee
Right-of-use assets	$	2	$	365	$	42	$	—	$	409
Depreciation expense	—		(69)		(15)		—		$	(84)
Lessor
Assets subject to operating leases	—		—		3		—		$	3

	Year ended December 31, 2020
(US$ MILLIONS)	Land		Buildings		Machinery and equipment		Others		Total
Lessee
Right-of-use assets	$	1	$	398	$	49	$	1	$	449
Depreciation expense	—		(73)		(12)		(1)		$	(86)
Lessor
Assets subject to operating leases	—		—		2		—		$	2