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Long-term debt - Summary (Details) - ZAR (R) R in Millions	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Long-term debt.
Total long-term debt	R 109,454	R 81,405	R 79,877
Short-term portion of long-term debt	(12,763)	(7,093)
Long-term debt, non-current portion	R 96,691	R 74,312

X

- Definition

The current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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X

- References

No definition available.

+ Details

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X

- Definition

The non-current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X

- Definition

Aggregate amount of borrowings with original maturities greater than one year, including current and noncurrent borrowings.

+ References

No definition available.

+ Details

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