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Post-retirement benefit obligations- Loss/(gain) recognition (Details) - ZAR (R) R in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Disclosure of net defined benefit liability (asset) [line items]
Loss/(gain) recognised in the income statement	R 1,897	R 2,302	R 2,041
Loss/(gain) recognised in other comprehensive income	(834)	147	531
Healthcare
Disclosure of net defined benefit liability (asset) [line items]
Loss/(gain) recognised in the income statement	407	467	485
Loss/(gain) recognised in other comprehensive income	201	(1,040)	(460)
Pension | Benefit obligation
Disclosure of net defined benefit liability (asset) [line items]
Loss/(gain) recognised in the income statement	7,248	7,073	6,371
Loss/(gain) recognised in other comprehensive income	5,715	(6,921)	1,360
Pension | Plan assets
Disclosure of net defined benefit liability (asset) [line items]
Loss/(gain) recognised in the income statement	(5,758)	(5,238)	(4,815)
Loss/(gain) recognised in other comprehensive income	(7,419)	7,507	(514)
Pension | Asset ceiling
Disclosure of net defined benefit liability (asset) [line items]
Loss/(gain) recognised in other comprehensive income	R 669	R 601	R 145

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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 amount of other comprehensive income, before tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset). [Refer: Other comprehensive income, before tax; Defined benefit plans [member]; Plan assets [member]; Net defined benefit liability (asset)]

+ References

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- Definition

The amount of post-employment benefit expense relating to defined benefit plans. [Refer: Defined benefit plans [member]]

+ References

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