The amount of outstanding funds that the entity is obligated to repay.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
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-IssueDate 2025-01-01
-Paragraph 7
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The interest rate on borrowings. [Refer: Borrowings]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
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The amount of borrowings including held for sale.

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No definition available.

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Represents the percentage of ownership interest in a subsidiary that the Group has agreed to sell.

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No definition available.

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Borrowings - Debt instrument (Details) € in Millions, R$ in Millions, $ in Millions, ₦ in Billions, XOF in Billions, XAF in Billions, R in Billions	Mar. 31, 2026 USD ($)	Mar. 31, 2026 BRL (R$)	Mar. 31, 2026 XOF	Mar. 31, 2026 EUR (€)	Mar. 31, 2026 ZAR (R)	Mar. 31, 2026 NGN (₦)	Mar. 31, 2026 XAF	Feb. 11, 2026	Dec. 31, 2025 USD ($)
Borrowings
Borrowings	$ 3,241.6								$ 3,234.4
Borrowings	3,136.1								3,137.7
I-Systems Solues de Infraestrutura S.A.
Borrowings
Agreed to sell equity interest								51.00%
Assets and liabilities classified as held for sale
Borrowings
Borrowings	105.5								96.7
IHS Holding limited, Senior Note Maturing 2026
Borrowings
Notional amount	$ 200.0
Interest rate	5.625%	5.625%	5.625%	5.625%	5.625%	5.625%	5.625%
Borrowings	$ 203.4								200.5
IHS Holding limited, Senior Note Maturing 2028
Borrowings
Notional amount	$ 500.0
Interest rate	6.25%	6.25%	6.25%	6.25%	6.25%	6.25%	6.25%
Borrowings	$ 508.1								500.2
IHS Holding limited, Senior Note Maturing 2030
Borrowings
Notional amount	$ 550.0
Interest rate	7.875%	7.875%	7.875%	7.875%	7.875%	7.875%	7.875%
Borrowings	$ 557.7								546.7
IHS Holding limited, Senior Note Maturing 2031
Borrowings
Notional amount	$ 650.0
Interest rate	8.25%	8.25%	8.25%	8.25%	8.25%	8.25%	8.25%
Borrowings	$ 658.8								645.3
IHS Mauritius NG Holdco Limited, senior notes issued 2019
Borrowings
Notional amount	$ 286.0
Interest rate	8.00%	8.00%	8.00%	8.00%	8.00%	8.00%	8.00%
Borrowings	$ 284.6								290.0
I-Systems Solues de Infraestrutura S.A., debentures issued in 2024
Borrowings
Notional amount \| R$		R$ 160.0
Borrowings	$ 29.1								26.8
I-Systems Solues de Infraestrutura S.A., debentures issued in 2024 \| CDI
Borrowings
Borrowings, adjustment to interest rate basis	2.10%	2.10%	2.10%	2.10%	2.10%	2.10%	2.10%
IHS Cote d Ivoire S.A., CIV XOF Tranche II
Borrowings
Notional amount \| XOF			XOF 6.5
Interest rate	6.50%	6.50%	6.50%	6.50%	6.50%	6.50%	6.50%
Borrowings	$ 10.9								12.1
IHS Cote d Ivoire S.A., CIV Euro Tranche II
Borrowings
Notional amount \| €				€ 50.9
Borrowings	$ 57.2								63.9
IHS Cote d Ivoire S.A., CIV Euro Tranche II \| 3M EURIBOR
Borrowings
Borrowings, adjustment to interest rate basis	3.50%	3.50%	3.50%	3.50%	3.50%	3.50%	3.50%
IHS Holding 2025 facility
Borrowings
Notional amount	$ 200.0
Borrowings	$ 198.0								198.2
IHS Holding 2025 facility \| 3M SOFR
Borrowings
Borrowings, adjustment to interest rate basis	4.85%	4.85%	4.85%	4.85%	4.85%	4.85%	4.85%
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, ZAR Tranche
Borrowings
Notional amount \| R					R 3.2
Borrowings	$ 191.6								198.6
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, ZAR Tranche \| 3M JIBAR
Borrowings
Borrowings, adjustment to interest rate basis	4.50%	4.50%	4.50%	4.50%	4.50%	4.50%	4.50%
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, USD Tranche
Borrowings
Notional amount	$ 255.0
Borrowings	$ 256.7								256.8
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, USD Tranche \| 3M SOFR
Borrowings
Borrowings, adjustment to interest rate basis	4.50%	4.50%	4.50%	4.50%	4.50%	4.50%	4.50%
IHS Towers South Africa Proprietary Limited, maturing 2029
Borrowings
Notional amount \| R					R 3.0
Borrowings	$ 171.0								182.4
IHS Towers South Africa Proprietary Limited, maturing 2029 \| 3M JIBAR
Borrowings
Borrowings, adjustment to interest rate basis	2.75%	2.75%	2.75%	2.75%	2.75%	2.75%	2.75%
IHS Zambia Limited, maturing 2027
Borrowings
Notional amount	$ 38.0
Borrowings	$ 38.0								42.9
IHS Zambia Limited, maturing 2027 \| CAS + SOFR
Borrowings
Borrowings, adjustment to interest rate basis	5.00%	5.00%	5.00%	5.00%	5.00%	5.00%	5.00%
I-Systems Solues de Infraestrutura S.A., bank term loan issued October 2022
Borrowings
Notional amount \| R$		R$ 400.0
Borrowings	$ 76.4								69.9
I-Systems Solues de Infraestrutura S.A., bank term loan issued October 2022 \| CDI \| Minimum
Borrowings
Borrowings, adjustment to interest rate basis	2.45%	2.45%	2.45%	2.45%	2.45%	2.45%	2.45%
I-Systems Solues de Infraestrutura S.A., bank term loan issued October 2022 \| CDI \| Maximum
Borrowings
Borrowings, adjustment to interest rate basis	2.50%	2.50%	2.50%	2.50%	2.50%	2.50%	2.50%
IHS Holding 2025 revolving credit facility
Borrowings
Notional amount	$ 300.0
IHS Holding 2025 revolving credit facility \| CAS + SOFR
Borrowings
Borrowings, adjustment to interest rate basis	3.50%	3.50%	3.50%	3.50%	3.50%	3.50%	3.50%
Nigeria 2026 Revolving Credit Facility
Borrowings
Notional amount \| ₦						₦ 100.0
Nigeria 2026 Revolving Credit Facility \| MPR
Borrowings
Borrowings, adjustment to interest rate basis	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%
IHS Cameroon S.A., borrowings agreement September 2025
Borrowings
Notional amount \| XAF							XAF 10.0
Interest rate	5.50%	5.50%	5.50%	5.50%	5.50%	5.50%	5.50%
IHS Cameroon S.A., borrowings agreement October 2025
Borrowings
Notional amount \| XAF							XAF 10.0
IHS Cameroon S.A., borrowings agreement October 2025 \| Minimum
Borrowings
Interest rate	5.50%	5.50%	5.50%	5.50%	5.50%	5.50%	5.50%
IHS Cameroon S.A., borrowings agreement October 2025 \| Maximum
Borrowings
Interest rate	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%
IHS Nigeria, letters of credit issued February 2022
Borrowings
Notional amount	$ 356.5
Borrowings	$ 0.1								$ 0.1
IHS Nigeria, letters of credit issued February 2022 \| Minimum
Borrowings
Interest rate	12.00%	12.00%	12.00%	12.00%	12.00%	12.00%	12.00%
IHS Nigeria, letters of credit issued February 2022 \| Maximum
Borrowings
Interest rate	15.39%	15.39%	15.39%	15.39%	15.39%	15.39%	15.39%