XML 88 R88.htm IDEA: XBRL DOCUMENT v3.19.3

Financial Risk Management - Credit Risk (Details) - ZAR (R) R in Millions	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	R 5,837	R 5,602
Restricted investments	3,301	3,271
Investments held by social trust funds
Disclosure of detailed information about financial instruments [line items]
Restricted investments	28	33
Cash and cash equivalents
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	993	706
Restricted cash
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	136	115
Restricted investments (environmental trusts)
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	3,273	3,238
Restricted investments	3,273	3,238	R 2,621
Derivative financial assets
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	506	623
AA Plus | Restricted investments (environmental trusts)
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	0	1,498
AA Plus | Derivative financial assets
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	0	130
AA | Cash and cash equivalents
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	671	623
AA | Restricted cash
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	109	94
AA | Restricted investments (environmental trusts)
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	3,273	1,740
AA | Derivative financial assets
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	393	354
AA Minus | Cash and cash equivalents
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	322	83
AA Minus | Restricted cash
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	27	21
AA Minus | Derivative financial assets
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	69	139
A Plus | Derivative financial assets
Disclosure of detailed information about financial instruments [line items]
Maximum exposure to credit risk	R 44	R 0

X

- Definition

Restricted Investments1

+ References

No definition available.

+ Details

Name:	hmy_RestrictedInvestments1
Namespace Prefix:	hmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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.

+ Details

Name:	ifrs-full_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 35K
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_35K_a&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 36
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_36_a&doctype=Standard&book=b
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_MaximumExposureToCreditRisk
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=hmy_RestrictedInvestmentsHeldBySocialTrustFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=hmy_CashandCashEquivalents1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=hmy_RestrictedCashMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=hmy_RestrictedInvestmentsHeldByEnvironmentalTrustFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_DerivativesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=hmy_CreditRatingAAPlusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=hmy_CreditRatingAAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=hmy_CreditRatingAAMinusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ExternalCreditGradesAxis=hmy_CreditRatingAPlusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: