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Financial risk management and financial instruments - Summary of Financial Instruments (Details) - ZAR (R) R in Millions | Jun. 30, 2024 | Jun. 30, 2023
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Financial risk management and financial instruments |  |
Financial assets - carrying value | R 86,216 | R 92,029
Financial liabilities - carrying value | 168,266 | 177,816
Long-term debt |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 117,031 | 124,068
Long-term debt | At amortised cost |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 117,031 | 124,068
Financial liabilities - fair value | 113,315 | 116,533
Listed long-term debt | At amortised cost | Level 1 | USD |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 59,687 | 90,248
Financial liabilities - fair value | 55,778 | 82,768
Listed long-term debt | At amortised cost | Level 2 | ZAR |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 4,530 | 2,106
Financial liabilities - fair value | 4,453 | 2,079
Listed convertible bonds | At amortised cost | Level 3 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 12,099 | 12,238
Financial liabilities - fair value | 12,276 | 12,072
Unlisted long-term debt | At amortised cost | Level 3 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 40,715 | 19,476
Financial liabilities - fair value | 40,808 | 19,614
Lease liabilities |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 17,437 | 16,297
Lease liabilities | At amortised cost |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 17,437 | 16,297
Short-term debt and bank overdraft | At amortised cost | Level 3 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 687 | 238
Financial liabilities - fair value | 687 | 238
Trade and other payables |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 32,551 | 35,118
Trade and other payables | At amortised cost | Level 3 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 32,551 | 35,118
Financial liabilities - fair value | 32,551 | 35,118
Long-term and short-term financial liabilities | At fair value through profit or loss |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 619 | 3,397
Financial liabilities - fair value | 619 | 3,397
Commodity and currency derivative liabilities | At fair value through profit or loss | Level 2 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 18 | 1,102
Financial liabilities - fair value | 18 | 1,102
Convertible bond embedded derivative liability | At fair value through profit or loss | Level 3 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 59 | 1,302
Financial liabilities - fair value | 59 | 1,302
Oxygen supply contract embedded derivative liabilities | At fair value through profit or loss | Level 3 |  |
Financial risk management and financial instruments |  |
Financial liabilities - carrying value | 542 | 993
Financial liabilities - fair value | 542 | 993
Long-term restricted cash |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 1,709 | 1,447
Long-term restricted cash | At amortised cost | Level 1 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 1,709 | 1,447
Financial assets - fair value | 1,709 | 1,447
Long-term receivables |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 3,051 | 2,803
Long-term receivables | At amortised cost | Level 3 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 3,051 | 2,803
Financial assets - fair value | 2,906 | 2,803
Trade and other receivables |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 31,272 | 30,915
Trade and other receivables | At amortised cost | Level 3 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 31,272 | 30,915
Financial assets - fair value | 31,272 | 30,915
Cash and cash equivalents |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 45,383 | 53,926
Cash and cash equivalents | At amortised cost | Level 1 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 45,383 | 53,926
Financial assets - fair value | 45,383 | 53,926
Long and short-term financial assets | At fair value through profit or loss |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 3,978 | 2,225
Financial assets - fair value | 3,978 | 2,225
Commodity and currency derivative assets | At fair value through profit or loss | Level 2 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 1,297 | 472
Financial assets - fair value | 1,297 | 472
Oxygen supply contract embedded derivative assets | At fair value through profit or loss | Level 3 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 508 | 516
Financial assets - fair value | 508 | 516
Other short-term investments | At fair value through profit or loss | Level 1 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 2,173 | 1,237
Financial assets - fair value | 2,173 | 1,237
Other long-term investments | At fair value through profit or loss | Level 1 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 814 |
Financial assets - fair value | 814 |
Investments in listed securities | Designated at fair value through other comprehensive income | Level 1 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value |  | 701
Financial assets - fair value |  | 701
Investments in unlisted securities | Designated at fair value through other comprehensive income | Level 3 |  |
Financial risk management and financial instruments |  |
Financial assets - carrying value | 9 | 12
Financial assets - fair value | R 9 | R 12

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35H&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35M -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35M&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35N -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35N&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35I&doctype=Standard -URIDate 2023-03-23 + Details
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