| Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 |
|---|
| Profit before income tax and social contribution | -1,992 | -3,103 | -1,721 |
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| Depreciation and amortization | 5,527 | 5,692 | 6,827 |
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| Share of loss of an associate | - | - | 62 |
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| Residual value of property, plant and equipment and intangible written off | -88 | 52 | -137 |
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| Gain on sale transaction of 51% of I-Systems (formerly FiberCo) (Note 1) | - | -782 | - |
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| Interest on asset retirement obligation | -0 | 1 | 23 |
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| Provision for legal and administrative proceedings | 334 | 279 | 247 |
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| Inflation adjustment on judicial deposits and legal and administrative proceedings | 138 | 28 | -92 |
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| Interest, monetary and exchange rate variations on loans and other financial adjustments | 168 | 120 | 760 |
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| Interest on lease liabilities | 911 | 858 | 1,333 |
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| Lease interest | - | - | -28 |
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| Provision for expected credit losses | 553 | 545 | 626 |
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| Long-term incentive plans | 3 | 16 | 7 |
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| Total adjustments to reconcile income with net cash from operations | 9,527 | 9,867 | 11,533 |
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| Trade accounts receivable | -390 | -583 | -628 |
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| Taxes, fees and contributions to be recovered | - | - | 912 |
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| Inventories | -43 | 44 | -34 |
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| Prepaid expenses | 21 | -135 | 164 |
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| Judicial deposits | 204 | 216 | -604 |
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| Other assets | -111 | 42 | -31 |
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| Payroll and related charges | 54 | 36 | 40 |
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| Suppliers | -819 | 153 | 758 |
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| Taxes, fees and contributions to be collected | - | - | 103 |
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| Authorizations payable | -11 | 9 | 2,379 |
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| Payments for legal and administrative proceedings | 414 | 317 | 243 |
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| Deferred revenues | -87 | 136 | 49 |
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| Other liabilities | -127 | -117 | -114 |
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| Cash generated by operations | 8,743 | 10,092 | 9,429 |
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| Income tax and social contribution paid | 70 | 14 | - |
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| Net cash from operating activities | 8,674 | 10,078 | 9,429 |
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| Marketable securities | - | 2,502 | -2,376 |
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| Cash from the sale of 51% of I-Systems (formerly FiberCo) (Note 1) | - | 1,096 | - |
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| Cash from the merger of TIM Participações | 22 | - | - |
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| Consideration for the acquisition of Cozani | - | - | 6,270 |
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| Additions to property, plant and equipment and intangible | 3,891 | 5,284 | 4,730 |
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| Other derivatives | 161 | - | - |
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| Other | - | - | 4 |
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| Net cash used in investing activities | -5,455 | -6,689 | -8,620 |
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| New loans | 1,800 | 3,062 | 1,568 |
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| Amortization of loans | -1,807 | 1,711 | 565 |
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| Interest paid- Loans | 73 | -79 | 158 |
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| Payment of lease liability | - | - | 1,566 |
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| Interest paid on lease liabilities | 794 | 833 | 1,304 |
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| Derivative financial instruments | - | - | -269 |
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| Purchase of treasury shares, net of disposals | - | 11 | -5 |
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| Dividends and interest on shareholders’ equity paid | 1,153 | 1,043 | 1,199 |
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| Net cash used in financing activities | -2,928 | -735 | -3,489 |
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| Increase (decrease) in cash and cash equivalents | 291 | 2,653 | -2,680 |
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| Cash and cash equivalents at the beginning of the financial period | - | 2,575 | 5,229 |
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| Cash and cash equivalents at the end of the year | - | 5,229 | 2,549 |
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