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v3.26.1

Consolidated statement of changes in equity - USD ($) $ in Millions | Total | Adjustment on adoption of Amendment to IAS 21 (Introduction Note) | Total | Total Adjustment on adoption of Amendment to IAS 21 (Introduction Note) | Share capital | Treasury shares | Share premium | [2] | Retained profits | [3] | Other reserves | Other reserves Adjustment on adoption of Amendment to IAS 21 (Introduction Note) | [2] | Non- controlling interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Number of shares outstanding at beginning of period (in shares) at Dec. 31, 2022 |  |  |  |  |  |  | 172,096,000 | [1] | 1,213,000 |  |  |  |  |  |  |
Equity, beginning of period at Dec. 31, 2022 |  | $ 3,634 |  |  | $ 3,605 |  | $ 258 | [2] | $ (47) |  | $ 1,085 | $ 2,868 | $ (559) | [2] |  | $ 29
Total comprehensive income/ (loss) for the year |  | (223) |  |  | (35) |  |  |  |  |  |  | (82) | 47 | [2] |  | (188)
Transfer to legal reserve |  | 0 | [2] |  |  |  |  |  |  |  |  | (2) | 2 | [2] |  |
Purchase of treasury shares (in shares) | [4] |  |  |  |  |  |  |  | (604,000) |  |  |  |  |  |  |
Purchase of treasury shares | [4] | (10) |  |  | (10) |  |  |  | $ (18) |  |  | 7 |  |  |  |
Share based compensation | [2] | 52 |  |  | 50 |  |  |  |  |  |  |  | 50 |  |  | 1
Issuance of shares under share-based payment schemes (in shares) |  |  |  |  |  |  |  |  | 1,447,000 |  |  |  |  |  |  |
Issuance of shares under share-based payment schemes |  | 1 |  |  | 1 |  |  |  | $ 57 |  | (9) | (7) | (40) | [2] |  |
Effect of the buy-out of non-controlling interests in Panama |  | (1) |  |  | (1) |  |  |  |  |  |  | (1) |  |  |  |
Put Option reserve |  | (81) |  |  | (81) |  |  |  |  |  |  | (81) |  |  |  |
Capital injection in subsidiary |  | 74 |  |  |  |  |  |  |  |  |  |  |  |  |  | 74
Number of shares, end of period (in shares) at Dec. 31, 2023 |  |  |  |  |  |  | 172,096,000 | [1] | 370,000 |  |  |  |  |  |  |
Equity, end of period at Dec. 31, 2023 |  | 3,445 |  |  | 3,529 |  | $ 258 | [2] | $ (8) |  | 1,076 | 2,703 | (500) | [2] |  | (84)
Total comprehensive income/ (loss) for the year |  | 280 |  |  | 250 |  |  |  |  |  |  | 253 | (3) | [2] |  | 30
Dividends |  | (173) |  |  | (172) |  |  |  |  |  |  | (172) |  |  |  | (1)
Transfer to legal reserve |  | $ 0 | [2] |  |  |  |  |  |  |  |  | (8) | 8 | [2] |  |
Purchase of treasury shares (in shares) |  | (2,983,320) |  |  |  |  |  |  | (3,451,000) | [4] |  |  |  |  |  |
Purchase of treasury shares | [4] | $ (72) |  |  | (72) |  |  |  | $ (73) |  |  | 1 |  |  |  |
Share based compensation | [2] | 50 |  |  | 49 |  |  |  |  |  |  |  | 49 |  |  | 1
Share based cancellation |  | (35) |  |  | (35) |  |  |  |  |  |  |  | (35) | [2] |  |
Issuance of shares under share-based payment schemes (in shares) |  |  |  |  |  |  |  |  | 1,963,000 |  |  |  |  |  |  |
Issuance of shares under share-based payment schemes |  | 1 |  |  | 1 |  |  |  | $ 38 |  | (12) | 24 | (50) | [2] |  |
Put Option reserve |  | 79 |  |  | 79 |  |  |  |  |  |  | 79 |  |  |  |
Number of shares, end of period (in shares) at Dec. 31, 2024 |  |  |  |  |  |  | 172,096,000 | [1] | 1,857,000 |  |  |  |  |  |  |
Equity, end of period at Dec. 31, 2024 |  | 3,574 |  | $ (188) | 3,628 | $ (188) | $ 258 | [2] | $ (43) |  | 1,064 | 2,881 | (531) | [2] | $ (188) | (54)
Total comprehensive income/ (loss) for the year |  | 1,397 |  |  | 1,362 |  |  |  |  |  |  | 1,316 | 46 | [2] |  | 35
Dividends |  | $ (1,050) |  |  | (1,048) |  |  |  |  |  |  | (1,048) |  |  |  | (2)
Purchase of treasury shares (in shares) |  | (4,216,397) |  |  |  |  |  |  | (4,511,000) | [4] |  |  |  |  |  |
Purchase of treasury shares | [4] | $ (128) |  |  | (128) |  |  |  | $ (127) |  |  | (1) |  |  |  |
Cancellation of treasury shares (in shares) | [5] |  |  |  |  |  | 3,096,000 | [1] | 3,096,000 |  |  |  |  |  |  |
Cancellation of treasury shares | [5] | 0 |  |  |  |  | $ (5) | [2] | $ 84 |  | (19) | (61) |  |  |  |
Share based compensation | [2] | 14 |  |  | 14 |  |  |  |  |  |  |  | 14 |  |  |
Issuance of shares under share-based payment schemes (in shares) |  |  |  |  |  |  |  |  | 1,366,000 |  |  |  |  |  |  |
Issuance of shares under share-based payment schemes |  | 0 |  |  |  |  |  |  | $ 33 |  | (8) | 4 | (29) | [2] |  |
Number of shares, end of period (in shares) at Dec. 31, 2025 |  |  |  |  |  |  | 169,000,000 | [1] | 1,906,000 |  |  |  |  |  |  |
Equity, end of period at Dec. 31, 2025 |  | $ 3,621 |  |  | $ 3,640 |  | $ 253 | [2] | $ (52) |  | $ 1,036 | $ 3,091 | $ (689) | [2] |  | $ (20)
[1] | The authorized share capital amounts to $300 million divided into 200 million shares with a par value of $1.50 each.
[2] | Share capital, share premium (including the effects of rights offering) and other reserves (including share-based compensation) – see note C.1.
[3] | Retained profits – includes profit for the year attributable to equity holders, of which $661 million (2024: $562 million; 2023: $491 million) are not distributable to equity holders.
[4] | During the year ended December 31, 2025, Millicom repurchased 4,216,397 shares for a total amount of $119 million , completing the Share Repurchase Plan launched during 4Q 2024 for a total of approximately $150 million (2024: 2,983,320 shares for a total amoun t of $63 million ) and withheld approximately 294,709 shares for the settlement of tax obligations on behalf of employees under share-based compensation plans (2024: 467,247; 2023: 320,985).
[5] | On May 21, 2025, an Extraordinary General Meeting of shareholders approved, a 3,096,305 treasury shares cancellation.

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Balance Type: | na
Period Type: | duration

X
- Definition Number Of Treasury Shares Cancellation + References No definition available. + Details
Name: | tigo_NumberOfTreasurySharesCancellation
Namespace Prefix: | tigo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Treasury Shares Purchased + References No definition available. + Details
Name: | tigo_NumberOfTreasurySharesPurchased
Namespace Prefix: | tigo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration