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Financial risk management and financial instruments - Contractual Cash Flows (Details) $ / shares in Units, R in Millions, $ in Millions | Jun. 30, 2024 ZAR (R) | Jun. 30, 2023 ZAR (R) | Jun. 30, 2023 USD ($) $ / shares | Nov. 08, 2022 USD ($)
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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) |  |
Contractual cash flows, financial assets | 108,141 | 110,439 |  |
Contractual cash flows, financial liabilities | (250,053) | (244,561) |  |
US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contract amount | $ |  |  |  | $ 750
Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 102,486 | 105,065 |  |
Contractual cash flows, financial liabilities | (66,192) | (102,448) |  |
One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 1,768 | 1,257 |  |
Contractual cash flows, financial liabilities | (34,544) | (17,443) |  |
Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 726 | 411 |  |
Contractual cash flows, financial liabilities | (103,587) | (45,026) |  |
More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 3,161 | 3,706 |  |
Contractual cash flows, financial liabilities | (45,730) | (79,644) |  |
Non-derivative instruments |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (167,706) | (175,721) |  |
Contractual cash flows, non-derivative liabilities | (225,002) | (222,120) |  |
Non-derivative instruments | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (44,761) | (83,549) |  |
Non-derivative instruments | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (34,509) | (17,334) |  |
Non-derivative instruments | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (103,601) | (44,925) |  |
Non-derivative instruments | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (42,131) | (76,312) |  |
Long-term debt |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (117,031) | (124,068) |  |
Contractual cash flows, non-derivative liabilities | (153,995) | (152,653) |  |
Long-term debt | US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities |  | (9,400) |  |
Prevailing conversion price | $ / shares |  |  | $ 19.8595 |
Contract amount | $ |  |  | $ 750 |
Long-term debt | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (7,805) | (44,932) |  |
Long-term debt | Within one year | US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities |  | (9,400) |  |
Long-term debt | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (28,914) | (11,970) |  |
Long-term debt | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (99,312) | (41,366) |  |
Long-term debt | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (17,964) | (54,385) |  |
Long-term debt | As reported on | US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities |  | (17,000) |  |
Long-term debt | As reported on | Within one year | US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities |  | (600) |  |
Long-term debt | As reported on | One to three years | US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities |  | (1,300) |  |
Long-term debt | As reported on | Three to five years | US Dollar Convertible Bond, November 2027 |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities |  | (15,100) |  |
Lease liabilities |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (17,437) | (16,297) |  |
Contractual cash flows, non-derivative liabilities | (37,769) | (34,111) |  |
Lease liabilities | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (3,718) | (3,261) |  |
Lease liabilities | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (5,595) | (5,364) |  |
Lease liabilities | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (4,289) | (3,559) |  |
Lease liabilities | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (24,167) | (21,927) |  |
Short-term debt |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (566) | (79) |  |
Contractual cash flows, non-derivative liabilities | (566) | (79) |  |
Short-term debt | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (566) | (79) |  |
Trade and other payables |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (32,551) | (35,118) |  |
Contractual cash flows, non-derivative liabilities | (32,551) | (35,118) |  |
Trade and other payables | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (32,551) | (35,118) |  |
Bank overdraft |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (121) | (159) |  |
Contractual cash flows, non-derivative liabilities | (121) | (159) |  |
Bank overdraft | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, non-derivative liabilities | (121) | (159) |  |
Forward exchange contracts |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (11) | (353) |  |
Contractual cash flows, derivative liabilities | (21,390) | (18,086) |  |
Forward exchange contracts | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities | (21,390) | (18,086) |  |
Foreign exchange zero cost collars |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value |  | (579) |  |
Contractual cash flows, derivative liabilities |  | (579) |  |
Foreign exchange zero cost collars | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities |  | (579) |  |
Ethane swap options |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value |  | (158) |  |
Contractual cash flows, derivative liabilities |  | (158) |  |
Ethane swap options | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities |  | (158) |  |
Crude oil futures |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value |  | (12) |  |
Contractual cash flows, derivative liabilities |  | (12) |  |
Crude oil futures | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities |  | (12) |  |
Oxygen supply contract embedded derivative liability |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (542) | (993) |  |
Contractual cash flows, derivative liabilities | (3,654) | (3,606) |  |
Oxygen supply contract embedded derivative liability | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities | (34) | (64) |  |
Oxygen supply contract embedded derivative liability | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities | (35) | (109) |  |
Oxygen supply contract embedded derivative liability | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities | 14 | (101) |  |
Oxygen supply contract embedded derivative liability | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities | (3,599) | (3,332) |  |
Other commodity derivatives |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial liabilities - carrying value | (7) |  |  |
Contractual cash flows, derivative liabilities | (7) |  |  |
Other commodity derivatives | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, derivative liabilities | (7) |  |  |
Non-derivative instruments |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 84,411 | 91,041 |  |
Contractual cash flows, financial assets | 84,643 | 91,343 |  |
Non-derivative instruments | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 79,741 | 86,791 |  |
Non-derivative instruments | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 1,630 | 1,119 |  |
Non-derivative instruments | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 588 | 273 |  |
Non-derivative instruments | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 2,684 | 3,160 |  |
Long-term receivables |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 3,051 | 2,803 |  |
Contractual cash flows, financial assets | 3,283 | 3,105 |  |
Long-term receivables | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 90 |  |  |
Long-term receivables | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 1,630 | 1,119 |  |
Long-term receivables | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 588 | 273 |  |
Long-term receivables | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 975 | 1,713 |  |
Trade and other receivables |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 31,272 | 30,915 |  |
Contractual cash flows, financial assets | 31,272 | 30,915 |  |
Trade and other receivables | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 31,272 | 30,915 |  |
Cash and cash equivalents |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 45,383 | 53,926 |  |
Contractual cash flows, financial assets | 45,383 | 53,926 |  |
Cash and cash equivalents | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 45,383 | 53,926 |  |
Investments | Financial assets at fair value through other comprehensive income |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 9 | 713 |  |
Contractual cash flows, financial assets | 9 | 713 |  |
Investments | Financial assets at fair value through other comprehensive income | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 9 | 713 |  |
Investments | Financial assets at fair value through profit or loss |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 2,987 | 1,237 |  |
Contractual cash flows, financial assets | 2,987 | 1,237 |  |
Investments | Financial assets at fair value through profit or loss | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 2,987 | 1,237 |  |
Long-term restricted cash |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 1,709 | 1,447 |  |
Contractual cash flows, financial assets | 1,709 | 1,447 |  |
Long-term restricted cash | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 1,709 | 1,447 |  |
Forward exchange contracts |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 711 | 133 |  |
Contractual cash flows, financial assets | 22,090 | 17,866 |  |
Forward exchange contracts | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 22,090 | 17,866 |  |
Crude oil put options |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 279 | 253 |  |
Contractual cash flows, financial assets | 279 | 253 |  |
Crude oil put options | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 279 | 253 |  |
Foreign exchange zero cost collars |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 302 | 76 |  |
Contractual cash flows, financial assets | 302 | 76 |  |
Foreign exchange zero cost collars | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 302 | 76 |  |
Other commodity derivatives |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 5 | 10 |  |
Contractual cash flows, financial assets | 5 | 10 |  |
Other commodity derivatives | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 5 | 10 |  |
Oxygen supply contract embedded derivative |  |  |  |
Financial risk management and financial instruments |  |  |  |
Financial assets - carrying value | 508 | 516 |  |
Contractual cash flows, financial assets | 822 | 891 |  |
Oxygen supply contract embedded derivative | Within one year |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 69 | 69 |  |
Oxygen supply contract embedded derivative | One to three years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 138 | 138 |  |
Oxygen supply contract embedded derivative | Three to five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | 138 | 138 |  |
Oxygen supply contract embedded derivative | More than five years |  |  |  |
Financial risk management and financial instruments |  |  |  |
Contractual cash flows, financial assets | R 477 | R 546 |  |

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