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Financial Assets and Liabilities - Schedule of fair value option of financial instruments (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Loans, financing and debentures | R$ (45,659,037) | R$ (42,249,460) | R$ (29,052,215)
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Notional amount | (4,622,898) |  |
Loans, financing and debentures | (5,403,521) | (5,272,586) |
Accumulated fair value adjustment of Loans, financing and debentures | 303,423 | (370,997) |
Notional amount of derivatives | (4,622,898) |  |
Hedging instrument, assets | 2,293,143 | 2,481,493 |
Derivative hedging instruments accumulated fair value adjustment | 95,408 | 1,475,951 |
Notional amount of hedging instruments |  |  |
Net currency and interest rate instruments | (3,110,378) | (2,791,093) |
Net accumulated fair value adjustment of currency and interest rate instruments | R$ 398,831 | 1,104,954 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Swap Notes 2027 |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | R$ + <span style="border-left: none; border-right: none;">126.85</span>% do CDI |  |
Notional amount of derivatives | R$ (3,627,325) |  |
Hedging instrument, assets | 2,047,237 | 2,272,648 |
Derivative hedging instruments accumulated fair value adjustment | R$ 45,181 | 1,320,629 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Inflation and interest rate swaps, one |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + <span style="border-left: none; border-right: none;">107</span>% do CDI |  |
Notional amount of derivatives | R$ (100,198) |  |
Hedging instrument, assets | 30,535 |  |
Derivative hedging instruments accumulated fair value adjustment | R$ (3,096) |  |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Inflation and interest rate swaps, two |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + <span style="border-left: none; border-right: none;">118</span>% do CDI |  |
Notional amount of derivatives | R$ (220,000) |  |
Hedging instrument, assets | 47,527 |  |
Derivative hedging instruments accumulated fair value adjustment | R$ 20,019 |  |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | EIB 3rd Tranche |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + <span style="border-left: none; border-right: none;">88.5</span>% do CDI |  |
Notional amount of derivatives |  |  |
Hedging instrument, assets |  | 21,176 |
Derivative hedging instruments accumulated fair value adjustment | R$ 844 | 24,927 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | EIB 4th Tranche |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + <span style="border-left: none; border-right: none;">81.1</span>% do CDI |  |
Notional amount of derivatives |  |  |
Hedging instrument, assets |  | 39,256 |
Derivative hedging instruments accumulated fair value adjustment | R$ 2,583 | 26,219 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4,131 (2018) | Comgas [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + <span style="border-left: none; border-right: none;">107.9</span>% do CDI |  |
Notional amount of derivatives | R$ (268,125) |  |
Hedging instrument, assets | 168,358 | 154,627 |
Derivative hedging instruments accumulated fair value adjustment | R$ 20,794 | 117,080 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4,131 (2020) | Comgas [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + CDI + <span style="border-left: none; border-right: none;">2.75</span>% |  |
Notional amount of derivatives |  |  |
Hedging instrument, assets |  | (6,214) |
Derivative hedging instruments accumulated fair value adjustment | R$ 15,711 | (12,904) |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4,131 (2021) | Comgas [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="color: #000000; font-family: 'times new roman', times; font-size: 13.3333px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">R$</span> + CDI + <span style="border-left: none; border-right: none;">1.25</span>% |  |
Notional amount of derivatives | R$ (407,250) |  |
Hedging instrument, assets | (514) |  |
Derivative hedging instruments accumulated fair value adjustment | R$ (6,628) |  |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Senior notes due 2027 |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$+<span style="border-left: none; border-right: none;">7.0</span>% |  |
Notional amount | R$ (3,627,325) |  |
Loans, financing and debentures | (4,305,928) | (4,379,812) |
Accumulated fair value adjustment of Loans, financing and debentures | R$ 313,052 | (349,181) |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Export credit agreement |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | EUR + <span style="border-left: none; border-right: none;">0.58</span>% |  |
Notional amount | R$ (100,198) |  |
Loans, financing and debentures | (95,460) |  |
Accumulated fair value adjustment of Loans, financing and debentures | R$ (1,337) |  |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4131 |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$ + <span style="border-left: none; border-right: none;">2.20</span>% |  |
Notional amount | R$ (220,000) |  |
Loans, financing and debentures | (148,932) |  |
Accumulated fair value adjustment of Loans, financing and debentures | R$ 4,412 |  |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | EIB 3rd Tranche |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$ + <span>LIBOR</span><span>6</span>M + <span>0.54</span>% |  |
Notional amount |  |  |
Loans, financing and debentures |  | (30,817) |
Accumulated fair value adjustment of Loans, financing and debentures |  | 156 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | EIB 4th Tranche |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$ + <span>LIBOR</span><span>6</span>M + <span>0.61</span>% |  |
Notional amount |  |  |
Loans, financing and debentures |  | (57,813) |
Accumulated fair value adjustment of Loans, financing and debentures |  | 308 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4,131 (2018) | Comgas [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$ + <span style="border-left: none; border-right: none;">3.67</span>% |  |
Notional amount | R$ (268,125) |  |
Loans, financing and debentures | (438,823) | (415,232) |
Accumulated fair value adjustment of Loans, financing and debentures | R$ (18,230) | (24,247) |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4,131 (2020) | Comgas [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$ + <span style="border-left: none; border-right: none;">1.59</span>% |  |
Notional amount |  |  |
Loans, financing and debentures |  | (388,912) |
Accumulated fair value adjustment of Loans, financing and debentures |  | 1,967 |
Financial liabilities at fair value through profit or loss, category | Exchange rate Objects | Designated as Hedging Instruments [Member] | Resolution 4,131 (2021) | Comgas [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | US$ + <span style="border-left: none; border-right: none;">1.36</span>% |  |
Notional amount | R$ (407,250) |  |
Loans, financing and debentures | (414,378) |  |
Accumulated fair value adjustment of Loans, financing and debentures | 5,526 |  |
Financial liabilities at fair value through profit or loss, category | Interest rate Objects | Designated as Hedging Instruments [Member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Notional amount | (1,100,000) |  |
Loans, financing and debentures | (1,220,550) |  |
Accumulated fair value adjustment of Loans, financing and debentures | 213,627 |  |
Notional amount of derivatives | (1,100,000) |  |
Hedging instrument, assets | 153,719 |  |
Derivative hedging instruments accumulated fair value adjustment | (53,150) |  |
Notional amount of hedging instruments |  |  |
Net currency and interest rate instruments | (1,066,831) |  |
Net accumulated fair value adjustment of currency and interest rate instruments | R$ 160,477 |  |
Financial liabilities at fair value through profit or loss, category | Interest rate Objects | Designated as Hedging Instruments [Member] | Foreign exchange and interest swap, one |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="border-left: none; border-right: none;">107</span>% CDI |  |
Notional amount of derivatives | R$ (500,000) |  |
Hedging instrument, assets | 71,375 |  |
Derivative hedging instruments accumulated fair value adjustment | R$ (11,682) |  |
Financial liabilities at fair value through profit or loss, category | Interest rate Objects | Designated as Hedging Instruments [Member] | Foreign exchange and interest swap, two |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | <span style="border-left: none; border-right: none;">105</span>% CDI |  |
Notional amount of derivatives | R$ (600,000) |  |
Hedging instrument, assets | 82,344 |  |
Derivative hedging instruments accumulated fair value adjustment | R$ (41,468) |  |
Financial liabilities at fair value through profit or loss, category | Interest rate Objects | Designated as Hedging Instruments [Member] | Debenture, one | Rumo S.A. [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | IPCA + <span>4,68</span>% |  |
Notional amount | R$ (500,000) |  |
Loans, financing and debentures | (543,752) |  |
Accumulated fair value adjustment of Loans, financing and debentures | R$ 82,474 |  |
Financial liabilities at fair value through profit or loss, category | Interest rate Objects | Designated as Hedging Instruments [Member] | Debenture, two | Rumo S.A. [member] |  |  |
Disclosure Of Foreign Currency Related Hedging Instruments And Interest Rate Swaps [Line Items] |  |  |
Borrowings, interest rate basis | IPCA + <span style="border-left: none; border-right: none;">4,50</span>% |  |
Notional amount | R$ (600,000) |  |
Loans, financing and debentures | (676,798) |  |
Accumulated fair value adjustment of Loans, financing and debentures | R$ 131,153 |  |

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