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PROPERTY, PLANT AND EQUIPMENT - Property, Plant and Equipment by Type (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | $ 12,826 | $ 13,806
Additions | 5,127 | 1,228
Interest costs capitalized | 14 | 9
Acquisitions through business combinations, property, plant and equipment | 7,403 |
Decrease through classified as held for sale, property, plant and equipment | (356) |
Disposals | (22) | (7)
Depreciation | (2,014) | (1,562)
Impairment reversals (charges) | (1,423) | (648)
Transfers | 0 | 0
Property, plant and equipment | 24,141 | 12,826
Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 50,984 | 49,784
Property, plant and equipment | 61,862 | 50,984
Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (38,158) | (35,978)
Property, plant and equipment | (37,721) | (38,158)
Buildings, plant and equipment1 |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 3,600 | 4,213
Additions | 298 | (21)
Interest costs capitalized | 0 | 0
Acquisitions through business combinations, property, plant and equipment | 3,473 |
Decrease through classified as held for sale, property, plant and equipment | 0 |
Disposals | (22) | (7)
Depreciation | (1,107) | (790)
Impairment reversals (charges) | (990) | (394)
Transfers | 648 | 599
Property, plant and equipment | 7,753 | 3,600
Buildings, plant and equipment1 | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 14,750 | 14,209
Property, plant and equipment | 18,544 | 14,750
Buildings, plant and equipment1 | Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (11,150) | (9,996)
Property, plant and equipment | (10,791) | (11,150)
MIning property costs subject to depreciation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 6,258 | 6,522
Additions | 3,458 | 199
Interest costs capitalized | 0 | 0
Acquisitions through business combinations, property, plant and equipment | 2,270 |
Decrease through classified as held for sale, property, plant and equipment | 0 |
Disposals | 0 | 0
Depreciation | (907) | (772)
Impairment reversals (charges) | (742) | (178)
Transfers | 573 | 487
Property, plant and equipment | 12,288 | 6,258
MIning property costs subject to depreciation | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 21,624 | 20,938
Property, plant and equipment | 27,268 | 21,624
MIning property costs subject to depreciation | Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (15,366) | (14,416)
Property, plant and equipment | (14,980) | (15,366)
MIning property costs not subject to depreciation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 2,968 | 3,071
Additions | 1,371 | 1,050
Interest costs capitalized | 14 | 9
Acquisitions through business combinations, property, plant and equipment | 1,660 |
Decrease through classified as held for sale, property, plant and equipment | (356) |
Disposals | 0 | 0
Depreciation | 0 | 0
Impairment reversals (charges) | 309 | (76)
Transfers | (1,221) | (1,086)
Property, plant and equipment | 4,100 | 2,968
MIning property costs not subject to depreciation | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 14,610 | 14,637
Property, plant and equipment | 16,050 | 14,610
MIning property costs not subject to depreciation | Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (11,642) | (11,566)
Property, plant and equipment | (11,950) | $ (11,642)
KCGM [Member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Disposals | 260 |
KCGM [Member] | Buildings, plant and equipment1 |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Disposals | 127 |
KCGM [Member] | MIning property costs subject to depreciation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Disposals | 106 |
KCGM [Member] | MIning property costs not subject to depreciation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Disposals | $ 27 |

X
- Definition The increase in property, plant and equipment resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 73 -Subparagraph e -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_e_iii&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The decrease in property, plant and equipment through classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Property, plant and equipment; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_e_ii&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_e_vii&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_75_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_e_v&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_98_a&doctype=Standard -URIDate 2018-03-16 + Details
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