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The Millicom Group - A.2.2. Material Joint Ventures - Ghana (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 12, 2017 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | [2]
Financial Results Of Joint Venture [Abstract] |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  | $ (830) | $ (841) |  | $ (853) |  |
Operating profit (loss) |  |  |  | 655 | 645 | [1] | 490 | [1] |
Profit before taxes from continuing operations |  |  |  | 129 | 176 | [1],[2] | 109 | [1],[2] |
Charge for taxes, net |  |  |  | (116) | (158) | [1] | (179) | [1] |
Net profit (loss) for the year |  |  |  | (26) | 69 | [1],[3] | (90) | [1],[3] |
Share of profit in joint ventures |  |  |  | (68) | (6) |  | 0 |  |
Total non-current assets (excluding goodwill) |  | $ 7,646 |  | 8,784 | 7,646 |  |  |  |
Total non-current liabilities |  | 4,116 | [4] | 4,841 | 4,116 | [4] |  |  |
Cash and cash equivalents |  | 619 | [2] | 528 | 619 | [2] | 646 | [2] | $ 769
Debt and financing |  | 3,600 | [4] | 4,123 | 3,600 | [4] |  |  |
Debt and financing |  | 185 | [4] | 458 | 185 | [4] |  |  |
Net cash from operating activities |  |  |  | 792 | 820 | [2] | 878 | [2] |
Net cash from (used in) investing activities |  |  |  | (1,199) | (367) | [2] | (552) | [2] |
Net cash from (used in) financing activities |  |  |  | 341 | (464) | [2] | (441) | [2] |
Increase (decrease) in cash and cash equivalents |  |  |  | $ (98) | $ (8) | [2] | $ (123) | [2] |
Ghana |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  | 50.00% | 50.00% |  |  |  |
Government purchase option, percentage |  |  |  | 25.00% |  |  |  |  |
Government purchase option, period |  |  |  | 2 years |  |  |  |  |
Government purchase option, potential ownership percentage |  |  |  | 37.50% |  |  |  |  |
Non-current receivables due from joint ventures | $ 40 |  |  |  |  |  |  |  |
Combined commitment in joint venture | 50 |  |  |  |  |  |  |  |
Commitments in relation to joint ventures | 25 |  |  |  |  |  |  |  |
Investments in associates | 102 |  |  |  |  |  |  |  |
Gain (loss) attributable to recycling of foreign currency exchange | (79) |  |  |  |  |  |  |  |
Additional depreciation recognized by joint venture deconsolidated |  | 3 |  |  |  |  |  |  |
Financial Results Of Joint Venture [Abstract] |  |  |  |  |  |  |  |  |
Revenue |  | 58 |  | $ 187 |  |  |  |  |
Depreciation and amortization |  | (11) |  | (110) |  |  |  |  |
Operating profit (loss) |  | (1) |  | (100) |  |  |  |  |
Financial income (expenses), net |  | (10) |  | (42) |  |  |  |  |
Profit before taxes from continuing operations |  | (12) |  | (135) |  |  |  |  |
Charge for taxes, net |  | 0 |  | 0 |  |  |  |  |
Net profit (loss) for the year |  | (12) |  | (135) |  |  |  |  |
Share of profit in joint ventures |  | (6) |  | (68) | $ (6) |  |  |  |
Dividends and advances paid to Millicom |  | 0 |  | 0 |  |  |  |  |
Total non-current assets (excluding goodwill) |  | 184 |  | 277 | 184 |  |  |  |
Total non-current liabilities |  | 214 |  | 277 | 214 |  |  |  |
Total current assets |  | 60 |  | 71 | 60 |  |  |  |
Current liabilities |  | 106 |  | 134 | 106 |  |  |  |
Cash and cash equivalents |  | 15 |  | 19 | 15 |  |  |  |
Debt and financing |  | 145 |  | 276 | 145 |  |  |  |
Debt and financing |  | 0 |  | 17 | $ 0 |  |  |  |
Net cash from operating activities |  | 13 |  | (19) |  |  |  |  |
Net cash from (used in) investing activities |  | 0 |  | (8) |  |  |  |  |
Net cash from (used in) financing activities |  | (3) |  | 42 |  |  |  |  |
Increase (decrease) in cash and cash equivalents |  | $ 10 |  | $ 15 |  |  |  |  |
At fair value | Ghana |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |
Gains (losses) recognised when control of subsidiary is lost | $ 36 |  |  |  |  |  |  |  |
[1] | Re-presented for discontinued operations (shown in note A.4.). Not restated for the application of IFRS 15 and 9, as the Group elected the modified retrospective approach for both standards.
[2] | Re-presented for discontinued operations (shown in note A.4. and E.3.2.). Not restated for the application of IFRS 15 and 9, as the Group elected the modified retrospective approach for both standards.
[3] | Re-presented for discontinued operations (shown in note A.4.).
[4] | Not restated for the application of IFRS 15 and 9, as the Group elected the modified retrospective approach for both standards.

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- Definition The portion of gains (losses) from losing control of a subsidiary attributable to recognising any investment retained in the former subsidiary at its fair value at the date when control is lost. [Refer: Gains (losses) recognised when control of subsidiary is lost; Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 19 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_19_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_18_b&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2018-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=1&date=2018-03-01&anchor=para_24_b&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2018-01-01 -Paragraph 32 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=1&date=2018-03-01&anchor=para_32_a_ii&doctype=Standard -URIDate 2018-03-16 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2018-01-01 -Paragraph 28 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=para_28_b&doctype=Standard -URIDate 2018-03-16 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Note Effective on first application of IFRS 9 -Name IFRS -Number 4 -IssueDate 2018-01-01 -Paragraph 39L -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=4&date=2018-03-02&anchor=para_39L_e&doctype=Standard&book=b -URIDate 2018-03-16 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2018-01-01 -Paragraph 23 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=para_23&doctype=Standard -URIDate 2018-03-16 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph B10 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_B10_b&doctype=Appendix&seq=2 -URIDate 2018-03-16 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 106 -Subparagraph d -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_106_d_i&doctype=Standard -URIDate 2018-03-16 Reference 9: http://www.xbrl.org/2003/role/exampleRef -Note Effective 2021-01-01 -Name IFRS -Number 17 -IssueDate 2018-01-01 -Paragraph 113 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=17&date=2018-03-01&anchor=para_113_b&doctype=Standard -URIDate 2018-03-16 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 81A -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_81A_a&doctype=Standard -URIDate 2018-03-16 + Details
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