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31. FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Details 10) - BRL (R$) R$ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
ASSETS |  |  |  |  |  |
Concession financial assets related to Distribution infrastructure - IPCA |  | R$ 559 | [1] | R$ 484 | [2] |
Accounts receivable from Minas Gerais state government (AFAC) - IGPM index |  | 12 |  |  |  |
Concession Grant Fee - IPCA |  | 2,549 |  | 2,468 |  |
Assets |  | 54,083 |  | 50,526 | [3] | R$ 59,855
LIABILITIES |  |  |  |  |  |
Loans, financing and debentures - IPCA and IGP-DI |  | (4,863) |  | (4,730) |  |
Debt agreed with pension fund (Forluz) - IPCA |  | (473) |  |  |  |
Deficit of pension plan (Forluz) |  | (540) |  | (550) |  |
Liabilities |  | (36,605) |  | R$ 34,423 | [3] |
Net liability exposed |  | (5,876) |  |  |  |
Net effect of fluctuation in IPCA and IGP-M indices |  | (2,756) |  |  |  |
Probable scenario [member] | IPCA [member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Concession financial assets related to Distribution infrastructure - IPCA | [2] | 584 |  |  |  |
Accounts receivable from Minas Gerais state government (AFAC) - IGPM index |  | 13 |  |  |  |
Concession Grant Fee - IPCA |  | 2,664 |  |  |  |
Assets |  | 3,261 |  |  |  |
LIABILITIES |  |  |  |  |  |
Loans, financing and debentures - IPCA and IGP-DI |  | (5,083) |  |  |  |
Debt agreed with pension fund (Forluz) - IPCA |  | (494) |  |  |  |
Deficit of pension plan (Forluz) |  | (564) |  |  |  |
Liabilities |  | (6,141) |  |  |  |
Net liability exposed |  | (2,880) |  |  |  |
Net effect of fluctuation in IPCA and IGP-M indices |  | (124) |  |  |  |
Probable scenario (25%) [member] | IPCA [member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Concession financial assets related to Distribution infrastructure - IPCA | [2] | 591 |  |  |  |
Accounts receivable from Minas Gerais state government (AFAC) - IGPM index |  | 14 |  |  |  |
Concession Grant Fee - IPCA |  | 2,693 |  |  |  |
Assets |  | 3,298 |  |  |  |
LIABILITIES |  |  |  |  |  |
Loans, financing and debentures - IPCA and IGP-DI |  | (5,138) |  |  |  |
Debt agreed with pension fund (Forluz) - IPCA |  | (500) |  |  |  |
Deficit of pension plan (Forluz) |  | (571) |  |  |  |
Liabilities |  | (6,209) |  |  |  |
Net liability exposed |  | (2,911) |  |  |  |
Net effect of fluctuation in IPCA and IGP-M indices |  | (155) |  |  |  |
Remote scenario -50% [member] | IPCA [member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Concession financial assets related to Distribution infrastructure - IPCA | [2] | 597 |  |  |  |
Accounts receivable from Minas Gerais state government (AFAC) - IGPM index |  | 14 |  |  |  |
Concession Grant Fee - IPCA |  | 2,722 |  |  |  |
Assets |  | 3,333 |  |  |  |
LIABILITIES |  |  |  |  |  |
Loans, financing and debentures - IPCA and IGP-DI |  | (5,194) |  |  |  |
Debt agreed with pension fund (Forluz) - IPCA |  | (505) |  |  |  |
Deficit of pension plan (Forluz) |  | (577) |  |  |  |
Liabilities |  | (6,276) |  |  |  |
Net liability exposed |  | (2,943) |  |  |  |
Net effect of fluctuation in IPCA and IGP-M indices |  | R$ (187) |  |  |  |
[1] | Portion of the concession financial assets relating to the Regulatory Remuneration Base of Assets ratified by the grantor (Aneel) after the 4rd tariff review cycle.
[2] | Portion of the Concession financial assets relating to the Regulatory Remuneration Base of Assets ratified by the regulator (Aneel) after the 4rd tariff review cycle.
[3] | See note 2.8.

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