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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 30 years
Vessels
Up to 35 years
Oil and gas related equipment and mining propertyUnits of production
(US$ MILLIONS)LandBuildingsMachinery and equipmentVesselsOthersRight-of-use assetsTotal assets
Gross carrying amount
Balance at January 1, 2020$633 $3,708 $5,035 $3,970 $1,693 $1,463 $16,502 
Additions (cash and non-cash)1 174 547 475 15 314 1,526 
Dispositions(7)(5)(150)(254)(18)(165)(599)
Acquisitions through business combinations (1)
— 5 64 — 4 6 79 
Transfers and assets reclassified as held for sale (2)
(267)24 14 (22)195 — (56)
Foreign currency translation and other22 365 82 2 42 39 552 
Balance at December 31, 2020$382 $4,271 $5,592 $4,171 $1,931 $1,657 $18,004 
Additions (cash and non-cash)— 181 799 208 57 174 1,419 
Dispositions (4)
(44)(99)(838)(61)(46)(85)(1,173)
Acquisitions through business combinations (1)
105 157 1,862 — 28 366 2,518 
Transfers and assets reclassified as held for sale (2)
(36)11 (39)(121)4 42 (139)
Foreign currency translation and other(15)(154)(170)— 51 1 (287)
Balances at December 31, 2021$392 $4,367 $7,206 $4,197 $2,025 $2,155 $20,342 
Accumulated depreciation and impairment
Balance at January 1, 2020$— $(106)$(809)$(705)$(793)$(197)$(2,610)
Depreciation/depletion/impairment expense— (93)(662)(554)(114)(263)(1,686)
Dispositions— 2 52 193 6 63 316 
Transfers and assets reclassified as held for sale (2)
— 16 (4)6 7 1 26 
Foreign currency translation and other— (12)(22)— (25)(9)(68)
Balances at December 31, 2020 (3)
$— $(193)$(1,445)$(1,060)$(919)$(405)$(4,022)
Depreciation/depletion/impairment expense— (206)(711)(431)(69)(263)(1,680)
Dispositions (4)
— 26 399 46 29 53 553 
Transfers and assets reclassified as held for sale (2)
— (23)24 106 — (4)103 
Foreign currency translation and other— (41)68 — (13)15 29 
Balance at December 31, 2021 (3)
$— $(437)$(1,665)$(1,339)$(972)$(604)$(5,017)
Net book value
December 31, 2020$382 $4,078 $4,147 $3,111 $1,012 $1,252 $13,982 
December 31, 2021$392 $3,930 $5,541 $2,858 $1,053 $1,551 $15,325 
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(1)See Note 3 for additional information.
(2)Includes assets that were reclassified as held for sale and subsequently disposed. See Note 8 and Note 9 for additional information.
(3)Includes accumulated impairment losses of $110 million (2020: $46 million) for machinery and equipment, $239 million (2020: $276 million) for oil and gas properties and $383 million (2020: $370 million) for vessels.
(4)During the first quarter of 2021, the partnership derecognized $505 million of property, plant and equipment, net of accumulated amortization related to the deconsolidation of the partnership’s graphite electrode operations on March 1, 2021. Refer to Note 8 for additional information.
The right-of-use assets and assets subject to operating leases in which the partnership is a lessor by class of underlying asset as at December 31, 2021 and the depreciation expense of right-of-use assets by class of underlying asset for the year ended December 31, 2021 are outlined below:
Year ended December 31, 2021
(US$ MILLIONS)LandBuildingsMachinery and equipmentVesselsOthersTotal
Lessee
Right-of-use assets$113 $809 $565 $11 $53 $1,551 
Depreciation/depletion/impairment expense— (150)(88)(12)(13)(263)
Lessor
Assets subject to operating leases1 20 2,095 2,437 — 4,553 
Year ended December 31, 2020
(US$ MILLIONS)LandBuildingsMachinery and equipmentVesselsOthers Total
Lessee
Right-of-use assets$51 $621 $538 $22 $20 $1,252 
Depreciation expense(7)(128)(104)(16)(8)(263)
Lessor
Assets subject to operating leases— — 278 2,518 — 2,796