XML 566 R86.htm IDEA: XBRL DOCUMENT v3.20.4

Principal joint operations (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure of joint operations [abstract]

Summary of principle joint operations

Company and country of incorporation/operation			Principal activities			Group interest (%)
Australia
Tomago Aluminium Joint Venture			Aluminium smelting			51.6
Gladstone Power Station			Power generation			42.1
Hope Downs Joint Venture			Iron ore mining			50
Queensland Alumina Limited(a) (b)			Alumina production			80
Pilbara Iron Arrangements			Infrastructure, corporate and mining services			(c)
New Zealand
New Zealand Aluminium Smelters Limited(a) (b)			Aluminium smelting			79.4
Canada
Aluminerie Alouette Inc.			Aluminium production			40
US
Pechiney Reynolds Quebec Inc(b) (d)			Aluminium smelting			50.2

X

- References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfJointOperationsAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The disclosure of joint operations. [Refer: Joint operations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2020-01-01
-Paragraph B4
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B4_c&doctype=Appendix&subtype=B
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_DisclosureOfJointOperationsExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration