COMMITMENTS AND CONTINGENCIES - Narrative (Details)					1 Months Ended	3 Months Ended						6 Months Ended	9 Months Ended			12 Months Ended
	Sep. 30, 2024 USD ($) case	Aug. 20, 2024 USD ($)	Jan. 10, 2024 USD ($)	Apr. 08, 2022 USD ($)	Oct. 31, 2023	Sep. 30, 2024 USD ($) case	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	[1]	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) case	Sep. 30, 2023 USD ($)	[1]	Dec. 31, 2023 USD ($)	Jul. 24, 2024	Jul. 23, 2024
Loss Contingencies [Line Items]
Reserves for proceeding-related contingencies	$ 157,000,000					$ 157,000,000							$ 157,000,000
Aggregate amount for legal actions for which no loss amount has been accrued	223,000,000					223,000,000							223,000,000
Estimated litigation liabilities	0					0							0
Loss accrued for reasonably possible legal actions													2,000,000
Income tax benefit						(123,000,000)	$ (65,000,000)	$ (172,000,000)		$ (210,000,000)	$ (122,000,000)	$ (332,000,000)	(397,000,000)	$ (504,000,000)		$ (569,000,000)
Punitive fine percentage																	100.00%	150.00%
Air logistics services agreement term			5 years	10 years	3 years
Committed contract, minimum annual cost	109,000,000		$ 56,000,000	$ 43,000,000
Operating lease agreement not yet commenced	$ 1,497,000,000					$ 1,497,000,000							$ 1,497,000,000
Minimum
Loss Contingencies [Line Items]
Operating lease term not yet commenced yet	5 years					5 years							5 years
Maximum
Loss Contingencies [Line Items]
Operating lease term not yet commenced yet	15 years					15 years							15 years
Cloud Platform Services
Loss Contingencies [Line Items]
Paid in relation to the contract	$ 601,000,000					$ 601,000,000							$ 601,000,000
Fully Paid Off Between October 1, 2021 And September 30, 2026 | Cloud Platform Services
Loss Contingencies [Line Items]
Purchase commitment													824,000,000
Fully Paid Off Between September 23, 2022 And September 23, 2025 | Cloud Platform Services II
Loss Contingencies [Line Items]
Purchase commitment													200,000,000
Paid in relation to the contract	148,000,000					148,000,000							148,000,000
Fully Paid Off Between August 2024 and February, 2030 | Cloud Platform Services II
Loss Contingencies [Line Items]
Purchase commitment		$ 1,000,000,000
Fully Paid Off Between November 2024 And June 30, 2030 | Cloud Platform Services III
Loss Contingencies [Line Items]
Purchase commitment													90,000,000
Brazilian Preliminary
Loss Contingencies [Line Items]
Provision for disputed amounts	360,000,000					360,000,000							360,000,000
Judicial deposits	326,000,000					326,000,000							326,000,000
Interest income	$ 61,000,000					$ 61,000,000							$ 61,000,000
Withheld tax collection rate granted	10.00%					10.00%							10.00%
Provision considering rate	15.00%					15.00%							15.00%
ICMS-DIFAL | Lawsuits Filed In 2021
Loss Contingencies [Line Items]
Number of lawsuits pending | case	3					3							3
ICMS
Loss Contingencies [Line Items]
Amount under dispute	$ 61,000,000					$ 61,000,000							$ 61,000,000
PIS And COFINS Tax Benefits
Loss Contingencies [Line Items]
Income tax benefit													17,000,000
IRPJ And CSLL | Tax Year 2016
Loss Contingencies [Line Items]
Amount under dispute	13,000,000					13,000,000							13,000,000
IRPJ And CSLL | Tax Year 2017
Loss Contingencies [Line Items]
Amount under dispute	72,000,000					72,000,000							72,000,000
Buyer Protection Program
Loss Contingencies [Line Items]
Provision for maximum potential exposure	5,155,000,000					5,155,000,000	5,072,000,000						5,155,000,000			5,072,000,000
Product liability, contingency, recorded allowance	$ 10,000,000					$ 10,000,000	$ 8,000,000						$ 10,000,000			$ 8,000,000

[1] Recast for consistency with the current presentation due to the change in the presentation of certain financial results. Please refer to Note 2 – Summary of significant accounting policies - Change in the presentation of certain financial results and reclassification of prior year results.