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Impairment charges - (Tables)

6 Months Ended

Jun. 30, 2020

Disclosure of impairment loss and reversal of impairment loss [abstract]

Summary of impairment charges


			Six months ended 30 June 2020																					Six months ended 30 June 2019
			Pre-tax			Taxation			Non-controlling interest			Net amount			Pre-tax
						US$m			US$m			US$m			US$m			US$m
Aluminium – Pacific Aluminium			(489)			17			—			(472)			—
Aluminium – ISAL			(204)			(65)			—			(269)			(109)
Copper & Diamonds – Diavik			(441)			149			—			(292)			—
Copper & Diamonds – Oyu Tolgoi			—			—			—			—			(2,240)
Total impairment charge			(1,134)			101			—			(1,033)			(2,349)

Allocated as:
Intangible assets			(4)												(1)
Property, plant and equipment			(1,011)												(2,348)
Investment in equity accounted units ('EAUs')			(119)												—
Total impairment charge			(1,134)												(2,349)
Comprising:
Impairment charges of consolidated balances																					(1,015)			(2,349)
Impairment charges related to EAUs (pre-tax)												(148)			—
Total impairment charges in the Rio Tinto financial information by business unit (page F- 28)																					(1,163)			(2,349)
Taxation (including related to EAUs)												130			(16)
Non-controlling interests												—			1,506
Total impairment in the income statement												(1,033)			(859)