The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard
-URIDate 2020-01-01

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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.

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- Definition

The nominal amount of a hedging instrument. [Refer: Hedging instruments [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 23B
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_23B_a&doctype=Standard
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Number 7
-IssueDate 2020-01-01
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- Definition

The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 41
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_41&doctype=Standard
-URIDate 2020-01-01

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- Definition

The average strike rate per share.

+ References

No definition available.

+ Details

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- Definition

The amount of cash inflow (outflow) from settlement of derivatives.

+ References

No definition available.

+ Details

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Financial and capital risk management - Embedded derivatives in contracts (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) item EquityInstruments	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) item EquityInstruments	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) EquityInstruments
Derivative financial instruments.
Financial settlement inflows (outflows)	$ 60	$ (114)	$ (139)	$ 159
Embedded Derivatives - Put Options - Sold
Derivative financial instruments.
Notional \| EquityInstruments	1,105,070,863		1,105,070,863		1,105,070,863
Average strike rate per share \| item	4.38		4.38
Fair value of liabilities	$ (5)		$ (5)		$ (19)
Value at risk	2		2
Embedded Derivatives - Put Options - Sold \| 2021+
Derivative financial instruments.
Fair value of liabilities	$ (5)		$ (5)
Embedded Derivatives - Call Options - Bought
Derivative financial instruments.
Notional \| EquityInstruments	137,751,623		137,751,623		137,751,623
Average strike rate per share \| item	3.02		3.02
Fair value of liabilities	$ 15		$ 15		$ 18
Value at risk	2		2
Embedded Derivatives - Call Options - Bought \| 2021+
Derivative financial instruments.
Fair value of liabilities	$ 15		$ 15
Hedge Program for Finished Products Nickel Forwards Sold
Derivative financial instruments.
Notional \| EquityInstruments	604		604
Average strike rate per share \| item	18,147		18,147
Embedded - Nickel forwards - Bought
Derivative financial instruments.
Notional \| EquityInstruments	626		626
Average strike rate per share \| item	16,341		16,341
Fair value of liabilities	$ 1		$ 1
Financial settlement inflows (outflows)			1
Embedded - Nickel forwards - Bought \| 2021+
Derivative financial instruments.
Fair value of liabilities	$ 1		$ 1
Embedded derivatives - Nickel forwards
Derivative financial instruments.
Notional \| EquityInstruments	3,436		3,436		1,979
Average strike rate per share \| item	17,120		17,120
Fair value of liabilities	$ (3)		$ (3)		$ 2
Value at risk	2		2
Embedded derivatives - Nickel forwards \| 2021+
Derivative financial instruments.
Fair value of liabilities	$ (3)		$ (3)
Embedded derivatives - Copper forwards
Derivative financial instruments.
Notional \| EquityInstruments	1,247		1,247		976
Average strike rate per share \| item	9,620		9,620
Embedded derivatives - natural gas call options
Derivative financial instruments.
Notional \| EquityInstruments	729,571		729,571		746,667
Average strike rate per share \| item	233		233
Fair value of liabilities	$ (4)		$ (4)
Value at risk	3		3
Embedded derivatives - natural gas call options \| 2021+
Derivative financial instruments.
Fair value of liabilities	$ (4)		$ (4)