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Financial Assets and Liabilities - Summary of Carrying Amounts and Fair Value of Financial Assets and Financial Liabilities (Detail) - BRL (R$)	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]
Financial assets	R$ 29,914,865,000	R$ 28,842,050,000
Financial liabilities	(59,932,201,000)	(53,176,950,000)
Cost [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	21,431,535,000	14,034,381,000
Financial liabilities	(46,735,198,000)	(42,920,308,000)
Cost [member] | Investment fund [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	8,103,713,000	2,155,446,000
Cost [member] | Marketable securities [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	4,388,007,000	3,669,109,000
Cost [member] | Other financial assets [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	320,193,000	69,126,000
Cost [member] | Investment properties [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	3,886,696,000
Cost [member] | Derivative financial instruments [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	4,732,926,000	8,140,700,000
Financial liabilities	(1,076,161,000)	(446,061,000)
Cost [member] | Loans, borrowings and debentures [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities	(45,659,037,000)	(42,249,460,000)
Cost [member] | Contingent consideration [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities		(224,787,000)
Fair value [member] | Level 1 [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets		69,126,000
Financial liabilities	(30,157,655)	(24,971,099,000)
Fair value [member] | Level 1 [member] | Investment fund [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 1 [member] | Marketable securities [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 1 [member] | Other financial assets [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets		69,126,000
Fair value [member] | Level 1 [member] | Investment properties [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 1 [member] | Derivative financial instruments [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Financial liabilities
Fair value [member] | Level 1 [member] | Loans, borrowings and debentures [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities	(30,157,655,000)	(24,971,099,000)
Fair value [member] | Level 1 [member] | Contingent consideration [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities
Fair value [member] | Level 2 [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	17,544,839,000	13,965,255,000
Financial liabilities	(21,290,761,000)	(19,526,428,000)
Fair value [member] | Level 2 [member] | Investment fund [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	8,103,713,000	2,155,446,000
Fair value [member] | Level 2 [member] | Marketable securities [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	4,388,007,000	3,669,109,000
Fair value [member] | Level 2 [member] | Other financial assets [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	320,193,000
Fair value [member] | Level 2 [member] | Investment properties [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 2 [member] | Derivative financial instruments [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	4,732,926,000	8,140,700,000
Financial liabilities	(1,076,161,000)	(446,061,000)
Fair value [member] | Level 2 [member] | Loans, borrowings and debentures [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities	(20,214,600,000)	(18,855,850,000)
Fair value [member] | Level 2 [member] | Contingent consideration [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities		R$ (224,787,000)
Fair value [member] | Level 3 [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	3,886,696,000
Financial liabilities
Fair value [member] | Level 3 [member] | Investment fund [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 3 [member] | Marketable securities [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 3 [member] | Other financial assets [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Fair value [member] | Level 3 [member] | Investment properties [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets	3,886,696,000
Fair value [member] | Level 3 [member] | Derivative financial instruments [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets
Financial liabilities
Fair value [member] | Level 3 [member] | Loans, borrowings and debentures [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities
Fair value [member] | Level 3 [member] | Contingent consideration [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities

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The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

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