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PROPERTY, PLANT AND EQUIPMENT - Property, Plant and Equipment by Type (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | $ 14,103 | $ 14,434
Additions | 2,343 | 1,276
Disposals | (1,197) | (117)
Depreciation | (1,697) | (1,789)
Impairment charges |  | 299
Impairment reversals | 254 |
Transfers | 0 | 0
Property, plant and equipment | 13,806 | 14,103
Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 49,523 | 48,484
Property, plant and equipment | 49,784 | 49,523
Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (35,420) | (34,050)
Property, plant and equipment | (35,978) | (35,420)
Buildings, plant and equipment |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 4,556 | 4,684
Additions | 158 | 71
Disposals | (72) | (80)
Depreciation | (878) | (794)
Impairment charges |  | 217
Impairment reversals | (102) |
Transfers | 551 | 458
Property, plant and equipment | 4,213 | 4,556
Buildings, plant and equipment | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 14,111 | 13,782
Property, plant and equipment | 14,209 | 14,111
Buildings, plant and equipment | Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (9,555) | (9,098)
Property, plant and equipment | (9,996) | (9,555)
MIning property costs subject to depreciation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 7,194 | 7,300
Additions | 219 | 272
Disposals | (32) | 0
Depreciation | (819) | (995)
Impairment charges |  | 79
Impairment reversals | (359) |
Transfers | 449 | 538
Property, plant and equipment | 6,652 | 7,194
MIning property costs subject to depreciation | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 20,778 | 19,968
Property, plant and equipment | 21,068 | 20,778
MIning property costs subject to depreciation | Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (13,584) | (12,668)
Property, plant and equipment | (14,416) | (13,584)
MIning property costs not subject to depreciation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 2,353 | 2,450
Additions | 1,966 | 933
Disposals | (1,093) | (37)
Depreciation | 0 | 0
Impairment charges |  | 3
Impairment reversals | 715 |
Transfers | (1,000) | (996)
Property, plant and equipment | 2,941 | 2,353
MIning property costs not subject to depreciation | Cost |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 14,634 | 14,734
Property, plant and equipment | 14,507 | 14,634
MIning property costs not subject to depreciation | Accumulated depreciation and impairments |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (12,281) | (12,284)
Property, plant and equipment | $ (11,566) | $ (12,281)

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- Definition The amount of additions to property, plant and equipment other than those acquired 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 2017-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_i&doctype=Standard -URIDate 2017-03-09 + 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 2017-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_vii&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_75_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_ii&doctype=Standard -URIDate 2017-03-09 + 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 2017-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_v&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of reversal of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Reversal of 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 2017-01-01 -Paragraph 73 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e_vi&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_a&doctype=Standard -URIDate 2017-03-09 + Details
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