Cash Flow at Risk period of worst expected loss relative to projected business plan cash flows.

No definition available.

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- Definition

Level of confidence use in our A Cash Flow at Risk (CFaR) framework is used to measure the aggregate and diversified impact of financial risks upon the Group's financial targets. The principal measurement of risk is CFaR measured on a portfolio basis, which is defined as the worst expected loss relative to projected business plan cash flows over a one-year horizon under normal market conditions at a confidence level of 90 per cent.

+ References

No definition available.

+ Details

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- Definition

The net fair value of financial assets and financial liability.

+ References

No definition available.

+ Details

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- Definition

Percentage borrowings with floating rates.

+ References

No definition available.

+ Details

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- Definition

Percentage of net financial liabilities denominated in currency.

+ References

No definition available.

+ Details

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- Definition

Risk exposure associated with instruments sharing characteristic, amount of change in risk.

+ References

No definition available.

+ Details

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- Definition

Risk exposure associated with instruments sharing characteristic, percentage change in risk.

+ References

No definition available.

+ Details

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- Definition

Tonnes of exposure for provisionally priced.

+ References

No definition available.

+ Details

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- Definition

Transfer between fair value hierarchy categories.

+ References

No definition available.

+ Details

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- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

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- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard
-URIDate 2019-03-27

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- Definition

The basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

+ Details

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard
-URIDate 2019-03-27

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- Definition

The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Financial instruments, class [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph B8
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_B8_c&doctype=Appendix&subtype=B
-URIDate 2019-03-27

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Financial Risk Management - Additional Information (Detail) t in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($) t	Jun. 30, 2019 USD ($) t	Jun. 30, 2018 USD ($)	Jun. 30, 2020 CLP ($) t	Jun. 30, 2020 AUD ($) t	Jun. 30, 2020 EUR (€) t	Jun. 30, 2020 GBP (£) t	Dec. 31, 2019	Jun. 30, 2019 CLP ($) t	Jun. 30, 2019 AUD ($) t	Jun. 30, 2019 EUR (€) t	Jun. 30, 2019 GBP (£) t
Disclosure of detailed information about financial instruments [line items]
Borrowings	$ 23,605,000,000	$ 24,113,000,000
Transfer between fair value hierarchy categories	$ 0
Cash Flow at Risk period of worst expected loss relative to projected business plan cash flows	1 year
Principal measurement of risk, confidence level	90.00%
Percentage of borrowings exposed to floating interest rate	87.00%	87.00%
Weighted average interest rate payable	USD LIBOR + 2.95 per cent	USD LIBOR + 2.3 per cent
Debt instrument variable interest rate spread	2.95%			2.95%	2.95%	2.95%	2.95%	2.30%
Fair value change on derivatives	$ 422,000,000	$ 8,000,000	$ 208,000,000
Interest rate risk [member]
Disclosure of detailed information about financial instruments [line items]
Reasonable possible change in risk, percentage	1.00%	1.00%		1.00%	1.00%	1.00%	1.00%		1.00%	1.00%	1.00%	1.00%
Effect on equity and profit after taxation, due to reasonable possible change in risk	$ 47,000,000	$ 39,000,000
Currency risk [member]
Disclosure of detailed information about financial instruments [line items]
Reasonable possible change in risk, amount				$ 10	$ 0.01	€ 0.01	£ 0.01		$ 10	$ 0.01	€ 0.01	£ 0.01
Percentage of net financial liabilities denominated in currency	80.00%	82.00%
Effect on equity and profit after taxation, due to reasonable possible change in risk	$ 12,000,000	$ 12,000,000
Commodity price risk [member]
Disclosure of detailed information about financial instruments [line items]
Reasonable possible change in risk, percentage	10.00%	10.00%		10.00%	10.00%	10.00%	10.00%		10.00%	10.00%	10.00%	10.00%
Effect on equity and profit after taxation, due to reasonable possible change in risk	$ 8,000,000	$ 55,000,000
Commodity price risk [member] \| Forward commodity and other derivative contracts [member]
Disclosure of detailed information about financial instruments [line items]
Net asset fair value	159,000,000	199,000,000
Commodity price risk [member] \| Significant financial instruments [member]
Disclosure of detailed information about financial instruments [line items]
Net asset fair value	180,000,000	202,000,000
Fair value change on derivatives	$ 22,000,000	$ 14,000,000
Commodity price risk [member] \| Provisionally priced contract [member]
Disclosure of detailed information about financial instruments [line items]
Reasonable possible change in risk, percentage	10.00%	10.00%		10.00%	10.00%	10.00%	10.00%		10.00%	10.00%	10.00%	10.00%
Tonnes of copper exposure \| t	301	277		301	301	301	301		277	277	277	277
Effect on equity and profit after taxation, due to reasonable possible change in risk	$ 134,000,000	$ 114,000,000
Fixed interest rate not swapped to floating rate [member]
Disclosure of detailed information about financial instruments [line items]
Borrowings	3,019,000,000	3,019,000,000
Fixed interest rate not swapped to floating rate [member] \| At fair value [member]
Disclosure of detailed information about financial instruments [line items]
Borrowings	$ 4,114,000,000	$ 3,757,000,000