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Share-based payment reserve - Sasol Long-term Incentive Scheme (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2009	Jun. 30, 2019 ZAR (R) Y item shares	Jun. 30, 2018 ZAR (R) item shares	Jun. 30, 2017 shares
Share-based payment transaction
Number of shares authorised | shares		1,314,407,571	1,314,407,571	1,175,000,000
Long Term Incentive Equity Settled
Share-based payment transaction
Number of days from termination to settle valuation of share-based payment expense	40 days
Number of share options at the beginning of the year | item		6,796,488	6,198,589
Number of share options, LTIs granted | item		2,089,674	2,626,268
Number of share options, LTIs vested | item		(1,600,899)	(1,868,963)
Number of share options, Effect of CPTs and LTIs forfeited | item		(665,666)	(159,406)
Number of share options at the end of the year | item		6,619,597	6,796,488
Weighted average fair value at the beginning of the year		R 348.19	R 337.80
Weighted average fair value of LTIs granted		555.86	376.73
Weighted average fair value of LTIs vested		308.27	347.93
Weighted average fair value of Effect of CPTs and LTIs forfeited lapsed		360.19	349.95
Weighted average fair value at the end of the year		R 422.20	348.19
Remaining contractual vesting period of options outstanding | Y		1.40
Exercise price of outstanding share options		R 0
Average weighted market price of LTIs vested (after conversion to equity-settled)		R 507.50	R 396.02
Average fair value of options granted
Expected volatility		26.17%	24.73%
Expected dividend yield		3.43%	3.65%
Expected forfeiture rate		5.00%	5.00%
Long Term Incentive Equity Settled | Maximum
Share-based payment transaction
Number of shares authorised | shares		32,500,000
Percentage of share capital authorised to be issued under scheme		5.00%
Group management
Share-based payment transaction
Percentage of stock vesting period		50.00%
Group management | Minimum
Share-based payment transaction
Vesting period of partial awards		3 years
Average fair value of options granted
Vesting period		3 years	3 years
Group management | Maximum
Share-based payment transaction
Vesting period of partial awards		5 years
Average fair value of options granted
Vesting period		5 years	5 years
All other participants
Average fair value of options granted
Vesting period		3 years	3 years
Rand | Long Term Incentive Equity Settled | Minimum
Average fair value of options granted
Risk-free interest rate		6.90%	6.98%
Rand | Long Term Incentive Equity Settled | Maximum
Average fair value of options granted
Risk-free interest rate		7.87%	7.34%
US Dollar | Long Term Incentive Equity Settled | Minimum
Average fair value of options granted
Risk-free interest rate		0.91%	1.01%
US Dollar | Long Term Incentive Equity Settled | Maximum
Average fair value of options granted
Risk-free interest rate		1.56%	1.47%

X

- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

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The exercise price of outstanding share options.

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The percentage of an expected dividend used to calculate the fair value of share options granted.

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The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]]

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The average market price, of share options vested and settled.

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The change to the number of options granted due to the impact of corporate performance targets and options forfeiture.

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The weighted average fair value price of share options granted in a share-based payment arrangement.

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