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Share-Based Payments - Activity on Share Options (Details) | 12 Months Ended
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Jun. 30, 2019 ZAR (R) shares year | Jun. 30, 2018 ZAR (R) shares
2006 share plan |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Options granted (in shares) | 0 |
Number of options and rights (in shares) | 27,720,640 |
Gain realised by participants on options and rights traded during the year | R | R 484,000,000 | R 164,000,000
Fair value of options and rights exercised during the year | R | R 489,000,000 | R 181,000,000
SARs | 2006 share plan |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Number of options and rights (in shares) | 9,847,860 | 12,476,697
Weighted average option price (in SA rand per share) | R | R 50.20 | R 32.60
Options granted (in shares) |  | 0
Options granted (in SA rand per share) | R |  | R 0.00
Options exercised or vested (in shares) | (1,564,486) | (794,351)
Options exercised (in SA rand per share) | R | R 27.50 | R 24.37
Options forfeited and lapsed (in shares) | (1,570,330) | (1,834,486)
Options forfeited and lapsed (in SA rand per share) | R | R 56.29 | R 52.86
Number of options and rights (in shares) | 6,713,044 | 9,847,860
Weighted average option price (in SA rand per share) | R | R 26.45 | R 50.20
Options and rights vested but not exercised (in shares) | 5,692,965 | 5,331,335
Weighted average option price (in SA rand per share) | R | R 27.89 | R 36.26
PS | 2006 share plan |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Number of options and rights (in shares) | 42,427,284 | 37,848,573
Options granted (in shares) |  | 14,406,437
Options exercised or vested (in shares) | (20,166,093) | (3,873,467)
Options forfeited and lapsed (in shares) | (1,253,595) | (5,954,259)
Number of options and rights (in shares) | 21,007,596 | 42,427,284
RS | 2006 share plan |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Number of options and rights (in shares) | 550,996 | 701,412
Options granted (in shares) |  | 0
Options exercised or vested (in shares) | (550,996) | (120,000)
Options forfeited and lapsed (in shares) | 0 | (30,416)
Number of options and rights (in shares) | 0 | 550,996
PS and RS | 2006 share plan |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Options and rights vested but not exercised (in shares) | 0 | 0
PU | Sisonke ESOP |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] |  |
Number of options and rights (in shares) | 0 | 0
Options granted (in shares) | 6,974,500 | 0
Options exercised or vested (in shares) | (107,100) | 0
Options forfeited and lapsed (in shares) | (48,375) | 0
Number of options and rights (in shares) | 6,819,025 | 0
Weighted average option price (in SA rand per share) | R | R 27.16 |
Gain realised by participants on options and rights traded during the year | R | R 3,000,000 |
Remaining life (years) | year | 2.5 |

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