Gol Linhas Aéreas Inteligentes (GOLLQ) 20-F 29 Mar 21 2020 FY Annual report (foreign) Financial data

Cover

Cover	12 Months Ended
	Dec. 31, 2020shares
Cover [Abstract]
Entity Registrant Name	Gol Intelligent Airlines Inc.
Entity Central Index Key	0001291733
Document Type	20-F
Trading Symbol	GOL
Document Period End Date	Dec. 31, 2020
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Title of 12(b) Security	ADS each representing two shares of Preferred Stock
Security Exchange Name	NYSE
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity Incorporation, State or Country Code	D5
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
ICFR Auditor Attestation Flag	true
Entity Filer Category	Large Accelerated Filer
Document Accounting Standard	International Financial Reporting Standards
Entity Common Stock, Shares Outstanding	2,863,682,710
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020

Consolidated statements of fina

Consolidated statements of financial position - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	R$ 662830	R$ 1645425
Short-term investments	628,343	953,762
Restricted cash	355,769	304,920
Trade receivables	739,699	1,229,530
Inventories	195,638	199,213
Advance to suppliers and third parties	318,769	142,338
Recoverable taxes	186,955	309,674
Derivative assets	12,526	3,500
Other credits and amounts	144,822	139,015
Total current assets	3,245,351	4,927,377
Non-current assets
Short-term investments	992
Restricted cash	188,838	139,386
Deposits	2,058,455	1,968,355
Advance to suppliers and third parties	89,701	48,387
Recoverable taxes	318,404	174,142
Deferred taxes	53,563	59,809
Other credits and amounts	34,338	991
Derivative assets	116,283	143,969
Investments	815	1,254
Property, plant and equipment	4,960,288	6,058,101
Intangible assets	1,747,108	1,776,675
Total non-current assets	9,568,785	10,371,069
Total	12,814,136	15,298,446
Current liabilities
Loans and financing	2,353,279	2,543,039
Leases	1,317,008	1,404,712
Suppliers	1,612,536	1,286,275
Suppliers - forfeiting		554,467
Salaries, wages and benefits	334,670	396,010
Taxes payable	73,614	116,523
Landing fees	907,958	728,339
Advance ticket sales (Air traffic liability)	2,050,799	1,966,148
Mileage program	1,258,502	1,009,023
Advances from customers	27,897	16,424
Provisions	169,381	203,816
Derivatives liabilities	5,297	9,080
Other liabilities	287,275	128,744
Total current liabilities	10,398,216	10,362,600
Non-current liabilities
Loans and financing	7,623,687	5,866,802
Leases	6,267,184	4,648,068
Suppliers	32,658	10,142
Taxes payable	32,362	84
Mileage program	322,460	171,651
Provisions	1,353,515	1,053,240
Deferred taxes	219,634	244,041
Derivatives liabilities		11,270
Other liabilities	331,479	35,965
Total non-current liabilities	16,182,979	12,041,263
Equity (deficit)
Capital stock	3,009,436	3,008,178
Advances for future capital increase	1,180	584
Treasury shares	(62,215)	(102,543)
Capital reserves	207,246	225,276
Equity valuation adjustments	(577,369)	188,247
Accumulated losses	(16,985,370)	(10,996,413)
Deficit attributable to equity holders of the parent company	(14,407,092)	(7,676,671)
Non-controlling interest (NCI)	640,033	571,254
Total deficit	(13,767,059)	(7,105,417)
Total liabilities and deficit	R$ 12814136	R$ 15298446

Consolidated statements of oper

Consolidated statements of operations - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net revenue
Passenger	R$ 5783323	R$ 13077743	R$ 10633488
Mileage program, cargo and other	588,494	786,961	777,866
Total net revenue	6,371,817	13,864,704	11,411,354
Operating Costs and Expenses
Salaries, wages and benefits	(1,765,628)	(2,361,268)	(1,903,852)
Aircraft fuel	(2,025,701)	(4,047,344)	(3,867,673)
Aircraft rent			(1,112,837)
Landing fees	(411,065)	(759,774)	(743,362)
Aircraft, traffic and mileage servicing	(723,244)	(707,392)	(613,768)
Passenger service expenses	(389,998)	(578,744)	(474,117)
Sales and marketing	(324,185)	(670,392)	(581,977)
Maintenance, materials and repairs	(335,868)	(569,229)	(570,333)
Depreciation and amortization	(1,870,552)	(1,727,982)	(668,516)
Other income (expenses), net	523,019	(309,917)	524,656
Total operating costs and expenses	(7,323,222)	(11,732,042)	(10,011,779)
Equity pick up method	(439)	77	387
Income (loss) before financial results, exchange rate variation, net and income tax and social contribution	(951,844)	2,132,739	1,399,962
Financial results
Financial income	736,969	389,563	259,728
Financial expenses	(2,546,192)	(1,748,265)	(1,061,089)
Total financial income (expenses)	(1,809,223)	(1,358,702)	(801,361)
Income (loss) before exchange rate variation, net and income tax and social contribution	(2,761,067)	774,037	598,601
Exchange rate variation, net	(3,056,226)	(385,092)	(1,081,197)
Income (loss) before income tax and social contribution	(5,817,293)	388,945	(482,596)
Current	(95,537)	(178,621)	(52,139)
Deferred	17,579	(30,986)	(244,989)
Total income (loss) taxes	(77,958)	(209,607)	(297,128)
Net income (loss) for the year	(5,895,251)	179,338	(779,724)
Net income (loss) attributable to:
Equity holders of the parent company	(5,988,128)	(117,273)	(1,085,393)
Non-controlling interest shareholders	R$ 92877	R$ 296611	R$ 305669
Common Share [member]
Basic loss per share
Basic earnings (loss) per share (in R$ per shares)	R$ 0.481	R$ 0.010	R$ 0.089
Diluted loss per share
Diluted earnings (loss) per share (in R$ per shares)	(0.481)	(0.010)	(0.089)
Preferred Share [member]
Basic loss per share
Basic earnings (loss) per share (in R$ per shares)	(16.831)	(0.333)	(3.115)
Diluted loss per share
Diluted earnings (loss) per share (in R$ per shares)	R$ 16.831	R$ 0.333	R$ 3.115

Consolidated statements of comp

Consolidated statements of comprehensive income (loss) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of comprehensive income [abstract]
Net income (loss) for the year	R$ 5895251	R$ 179338	R$ 779724
Other comprehensive (loss) income - items that are or may be reclassified subsequently to profit or loss
Actuarial income (loss) from post-employment benefits, net of income tax and social contribution	13,921	(41,045)
Cash flow hedge, net of income tax and social contribution	(781,033)	(30,021)	(420,706)
Cumulative adjustment of conversion into subsidiaries	1,010
Total	(766,102)	(71,066)	(420,706)
Total comprehensive income (loss) for the year	(6,661,353)	108,272	(1,200,430)
Comprehensive income (loss) attributable to:
Equity holders of the parent company	(6,754,221)	(188,339)	(1,506,099)
Non-controlling interest shareholders	R$ 92868	R$ 296611	R$ 305669

Consolidated statements of chan

Consolidated statements of changes in equity - BRL (R$) R$ in Thousands	Capital Stock [member]	Advance for future capital increase [member]	Treasury shares [member]	Premium on transfer of shares [member]	Special premium reserve of subsidiary [member]	Share-based payments [member]	Cash flow hedge reserve [member]	Post employment benefit [member]	Cumulative adjustment of conversion into subsidiaries [member]	Effects from changes in the equity investments [member]	Accumulated losses [member]	Deficit attributable to equity holders of the parent company [member]	Non-controlling interests [member]	Total
Balances as of beginning of period at Dec. 31, 2017	R$ 2927184		R$ 4168	R$ 17783	R$ 70979	R$ 119308	R$ 79316			R$ 760545	R$ 7312849	R$ 3500534	R$ 412013	R$ 3088521
Changes in equity [Abstract]
Initial adoption of accounting standards - IFRS 9											1,675	1,675	38	1,713
Other comprehensive income (loss), net							(420,706)					(420,706)		(420,706)
Net income (loss) for the year											(1,085,393)	(1,085,393)	305,669	(779,724)
Stock options exercised	15,428	2,818										18,246		18,246
Effects of the change in interest in investment										(561)		(561)	561
Treasury shares buyback			(15,929)									(15,929)		(15,929)
Stock options in subsidiary													875	875
Share-based payments						17,790						17,790	782	18,572
Treasury shares transferred			19,971	(286)		(19,685)
Dividends and interest on shareholders' equity paid by Smiles													(172,865)	(172,865)
Dividends and interest on shareholders' equity distributed by Smiles													(67,012)	(67,012)
Balances as of end of period at Dec. 31, 2018	2,942,612	2,818	(126)	17,497	70,979	117,413	(500,022)			759,984	(8,396,567)	(4,985,412)	480,061	(4,505,351)
Changes in equity [Abstract]
Initial adoption of accounting standards											(2,482,573)	(2,482,573)	(256)	(2,482,829)
Adjusted balance as of January 1st , 2019	2,942,612	2,818	(126)	17,497	70,979	117,413	(500,022)			759,984	(10,879,140)	(7,467,985)	479,805	(6,988,180)
Other comprehensive income (loss), net							(30,021)	(41,045)				(71,066)		(71,066)
Net income (loss) for the year											(117,273)	(117,273)	296,611	179,338
Total comprehensive income (loss) for the year							(30,021)	(41,045)			(117,273)	(188,339)	296,611	108,272
Advances for future capital increase		584										584		584
Stock options exercised	65,566	(2,818)				7,137						69,885	2,366	72,251
Effects of the change in interest in investment										(649)		(649)	649
Treasury shares buyback			(102,417)									(102,417)		(102,417)
Subscription warrants					12,250							12,250		12,250
Interest on shareholders' equity distributed by Smiles													(208,177)	(208,177)
Balances as of end of period at Dec. 31, 2019	3,008,178	584	(102,543)	17,497	83,229	124,550	(530,043)	(41,045)		759,335	(10,996,413)	(7,676,671)	571,254	(7,105,417)
Changes in equity [Abstract]
Other comprehensive income (loss), net							(781,033)	14,376	564			(766,093)	(9)	(766,102)
Net income (loss) for the year											(5,988,128)	(5,988,128)	92,877	(5,895,251)
Total comprehensive income (loss) for the year							(781,033)	14,376	564		(5,988,128)	(6,754,221)	92,868	(6,661,353)
Advances for future capital increase		1,180										1,180		1,180
Stock options exercised	1,258	(584)										674		674
Effects of the change in interest in investment										477	(829)	(352)	352
Interest on shareholders' equity distributed by Smiles													(25,573)	(25,573)
Share-based payments						22,298						22,298	1,132	23,430
Treasury shares transferred			40,328			(40,328)
Balances as of end of period at Dec. 31, 2020	R$ 3009436	R$ 1180	R$ 62215	R$ 17497	R$ 83229	R$ 106520	R$ 1311076	R$ 26669	R$ 564	R$ 759812	R$ 16985370	R$ 14407092	R$ 640033	R$ 13767059

Consolidated statements of cash

Consolidated statements of cash flows - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating activities
Net income (loss) for the year	R$ 5895251	R$ 179338	R$ 779724
Adjustments to reconcile net income (loss) to net cash flows from operating activities
Depreciation and amortization	1,870,552	1,727,982	668,516
Provision for expected credit losses	1,095	5,668	(9,789)
Provision for legal proceedings	288,803	195,465	243,860
Provision for inventory obsolescence	702	2,168	5,023
Provision for loss on advances from suppliers	31,486	161,228
Adjustment to present value of advance from suppliers	63,493	10,604
Deferred taxes	(17,579)	30,986	244,989
Equity pick up method	439	(77)	(387)
Share-based payments	23,430	40,725	18,572
Sale-leaseback gains	(551,942)
Actuarial losses from post-employment benefits	10,677	4,907
Foreign exchange and monetary variation, net	3,114,032	399,174	946,732
Interest on loans and financing and leases	1,545,847	1,126,527	679,985
Provision for aircraft and engine return	(58,702)	231,821
Provision for maintenance deposits and reserve	186,856	75,451	65,334
Result of derivatives recognized in profit or loss	732,398	22,022	(13,239)
Unrealized hedge results Exchangeable Senior Notes	(374,994)	(40,717)
Termination of obligation due to contractual term reduction	(104,109)	(275,921)
Provision for labor obligations	227,710	280,320	127,618
Disposals of property, plant and equipment and intangible assets	96,594	152,017	90,639
Other provisions	(7,416)	(14,602)
Adjusted net income (loss)	1,184,121	4,315,086	2,288,129
Changes in operating assets and liabilities:
Trade receivables	498,901	(384,147)	95,844
Short-term investments	(6,320)	162,167	695,831
Inventories	2,873	(21,240)	(6,673)
Advance to suppliers and third parties	(238,627)	(305,906)
Deposits	(52,016)	(399,345)	(402,495)
Recoverable taxes	(21,543)	(27,147)
Variable and short-term leases	18,731
Suppliers	392,236	(232,021)	16,382
Suppliers - forfeiting	(143,010)	188,771	267,502
Advance from ticket sales	84,651	292,161	197,473
Mileage program	400,288	161,821	65,535
Advances from customers	11,473	(153,543)	148,249
Salaries, wages and benefits	(289,050)	(253,074)	(64,308)
Landing fees	179,619	172,039	190,649
Taxes obligation	82,716	179,706	127,663
Derivatives	(779,462)	(167,556)	8,385
Payments for lawsuits and aircraft return	(301,297)	(317,591)	(236,882)
Operating leases			103,838
Other assets and liabilities, net	444,990	(48,851)	(736,638)
Interest paid	(619,557)	(470,794)	(508,973)
Income tax and social contribution paid	(95,781)	(229,460)	(167,642)
Net cash flows from operating activities	753,936	2,461,076	2,081,869
Investing activities
Short-term investments, net	271,935	(501,607)	(163,218)
Restricted cash	(100,301)	377,826	(548,928)
Receipt of dividends and Interest on shareholders' equity through subsidiary			543
Advances for property, plant and equipment acquisition, net	(96,537)	(30,804)	(106,628)
Receipt of aircraft sales	448,482	348,389
Return of advance for property, plant and equipment acquisition	73,600
Acquisition of property, plant and equipment	(501,416)	(872,570)	(686,946)
Acquisition of intangible assets	(63,993)	(75,845)	(82,079)
Net cash flows from (used in) investing activities	31,770	(754,611)	(1,587,256)
Financing activities
Loans and financing issued, net of costs	2,933,529	2,194,662	1,664,007
Loan and financing payments	(3,748,239)	(793,537)	(1,949,338)
Payments of leases liabilities	(1,058,692)	(1,617,677)	(251,557)
Treasury share buyback		(102,417)	(15,929)
Derivative premium payment		(407,322)
Dividends and interest on shareholders' equity paid to non-controlling interests	(63,949)	(210,242)	(219,493)
Warrants		12,250
Capital increase	1,180	31,526	15,428
Capital increase from non-controlling interests			875
Shares to be issued	674	584	2,818
Net cash flows used in financing activities	(1,935,497)	(892,173)	(753,189)
Foreign exchange variation on cash held in foreign currencies	167,196	4,946	57,901
Net (decrease) increase in cash and cash equivalents	(982,595)	819,238	(200,675)
Cash and cash equivalents at the beginning of the year	1,645,425	826,187	1,026,862
Cash and cash equivalents at the end of the year	R$ 662830	R$ 1645425	R$ 826187

1. Operating context

1. Operating context	12 Months Ended
	Dec. 31, 2020
Operating Context
Operating context	1. Operating context Gol Linhas Aéreas Inteligentes S.A. (“Company” or “GOL”) is a limited liability company incorporated on March 12, 2004 under Brazilian laws. The Company’s bylaws states that the corporate purpose is exercising the equity control of GOL Linhas Aéreas S.A. (“GLA”), through subsidiaries or affiliated companies, as well as exploring: • regular and non-regular flight transportation services of passengers, cargo and mailbags, domestically or internationally, as per the concessions granted by the authorities; • complementary activities related to flight transportation services by chartering of passengers, cargo and mailbags; • services to maintain and repair its own or third-party’s aircraft, engines and parts; • aircraft hangar services; • services to manage aprons and runways, contract crew members and clean aircraft; • development of other activities related or supplementary to flight transportation and other above-mentioned activities; • development of loyalty programs; and • interest in the capital of other companies as a partner or shareholder. The Company’s shares are traded on B3 S.A. - Brasil, Bolsa, Balcão (“B3”) and on the New York Stock Exchange (“NYSE”) under the ticker GOLL4 and GOL, respectively. The Company adopts B3’s Special Corporate Governance Practices Level 2 and is part of the Special Corporate Governance (“IGC”) and Special Tag Along (“ITAG”) indexes, created to distinguish companies that commit to special corporate governance practices. The Company’s official headquarters are located at Praça Comandante Linneu Gomes, s/n, portaria 3, prédio 24, Jardim Aeroporto, São Paulo, Brazil. 1.1. Measures taken by Management regarding COVID-19 and the gradual resumption of demand The pandemic sparked by COVID-19, considered by the World Health Organization as a “public health emergency of international interest”, spread rapidly across the world, leading to unprecedented disruptions in the global economic activity. Such crisis affected the macroeconomic environment, considering the uncertainties from public health, political and economic issues. As disclosed by the Brazilian Institute of Geography and Statistics (IBGE), in 2020, the Gross Domestic Product (GDP) decreased 4.1% when compared to 2019. Among the measures taken in the country, which reduced the infection speed of the disease, are the recommendation of social distancing, restrictions and recommendations to reduce commute and closing the borders. Therefore, the airline industry was one of the first and most affected in its operations and profitability. Since the beginning of the pandemic, GOL has had consistent occupancy rates close to 80%, through the readjustment of its flight network, mainly in the second and third quarters of 2020 when there was a significant reduction in daily flights, which, in addition to cost control and cash preservation measures implemented, have allowed the Company to be well positioned for the resumption of demand. The flexible business model based on a single type of fleet has historically allowed the Company to reach the lowest operating costs and to manage the fleet's capacity to keep pace with the Brazilian GDP and passenger demand. This flexibility was key in the first half of 2020 to meet the more than 90% drop in passenger demand due to government measures to control the spread of the COVID-19 pandemic. In 4Q 2020 the Company reached a 46% increase in consolidated gross sales, compared to 3Q 2020, particularly concentrated in leisure travel in domestic market, being the Company’s main area of activity. In the same period, GOL’s daily sales exceeded R$30 million, which represents over 80% of pre-pandemic sales levels. As for transportations carried out, on certain dates in December, GOL transported around 88,000 clients in a single day, equivalent to around 67% of the total recorded in the same day in 2019. In 2020, the Company rebalanced amortization for the loans and financing schedule, with significant loans maturities until 2024, and the issue of Secured Notes 2026, totaling US$200 million. GOL’s Management fully honored the financial commitments to the global capital market, including the amortization of its 2022 Senior Notes in March, the full payment of interest (coupons) on all its notes. As of December 31, 2020, the Company has a credit rating of “B3” by Moody's and “CCC+” by Fitch. The Company’s management maintains continuous efforts in cash management in order to hold sufficient resources to fulfill its financial obligations for the upcoming twelve months, however, the scenario remains challenging due to uncertainties related to the pandemic, Brazilian economy recovery and air sector demand. The Company, through its Executive Committee, with the participation of its entire management body, monitors the recovery of the demand and sets financial and operational strategies, besides defining how GOL can support society. Among the measures already taken by management, the following stand out: 1.1.1 Operational readjustment - Flight network On March 16, 2020, GOL reduced its capacity by 50% to 60% in the domestic market, and by 90% to 95% in the foreign market, to reflect the change in customer demand. The Company adjusted its network from 750 to 50 essential daily flights (essential flight network). Compared to its essential flight network in April 2020, GOL has reopened 42 bases in Brazil and is now serving 63 bases, resuming operations in all the domestic bases operated in early 2020, with an average of 403 daily flights in 4Q 2020, which represents 54% of the daily frequency YoY. Since April 2020, GOL has not offered scheduled international flights. With the continuous return of demand in 4Q 2020 and the beginning of the Brazilian summer, GOL expanded the flight offer to the Northeast region and launched four new domestic routes to ensure the most complete and comprehensive flight network to meet the resumption of leisure trips. With this, the Company reached 100% of national destinations operated in high season, compared to those operated in early 2020 (pre-pandemic). GOL's current share in the domestic market is around 40%, representing an increase of two percentage points since the beginning of the pandemic. GOL’s leadership in the domestic market and its network exposure in the Brazilian domestic market will further contribute to operational recovery, deleveraging and sustained competitiveness. In February 2021, there was a 15% decrease in the search for the Company’s airline tickets, compared to January 2021, with a 28% reduction in the level of sales during this month, due to reduction in demand for travel as a consequence of this accelerated phase of Covid-19 cases in Brazil, customers awaiting vaccination and the beginning of low season. In response to the significant reduction in sales, increase in cancellations and no-shows, GOL’s network was reduced by 4% between the first and fourth weeks of February to adjust its costs to the level of inflows. In March 2021, the Company maintains the reduction plan with operation of around 250 flights per day, placing its operations at approximately 40% of March 2020. 1.1.2 Preserving and strengthening the cash and liquidity position • Aircraft and Engine Leases: • Fuels: • Personnel In June, the Company signed collective bargaining agreements with the National Aeronauts Union and the Airlines Workers Unions. Among the main initiatives of the package of measures with the Unions, we highlight the salary reduction of up to 50% for 12 months and voluntary plans (voluntary dismissal program, retirement, part-time, and unpaid leave). This package of measures came into effect on July 1 st In addition, GOL postponed the payment of bonuses related to 2019 and vacation bonuses, besides the non-possibility of prepaying the 13 th • Investments • Engine Maintenance • Taxes, Contributions, and Social Charges • Sales and Advertising • Loans and Financing 1.1.3 Government and regulators support • Preservation of Advance Ticket Sales • Landing Fees • Maintenance of the Brazilian Civil Aviation Agency (ANAC)’s Slots and Qualifications 1.1.4 Support to society, employees, and customers Air passenger transportation is an essential service for society. The Company recognizes the duty to care for its customers and employees and is working with the authorities to help minimize the impact of COVID-19 on the country's population and health services. Among the main measures, we highlight the adoption of mandatory protective masks, closing of VIP rooms, turning off self-service totems, creation of communication channels regarding the virus, implementation of segmented boarding and adoption of self-boarding without boarding pass handling. Currently, 90% of the processes for traveling with GOL happen without human contact. For its flights, the Company adopted additional cleaning measures according to the new standards issued by ANVISA and international bodies. On December 16, 2020, GOL received the Einstein Certification recognizing the strict Health and Safety protocols followed by the Company. Regarding Smiles loyalty program, digital channels were also improved by implementing online cancellation self-service, free of charge, available on Smiles Fidelidade website and app, as well as in the online service (chat), for customers who have eligible GOL tickets. The system was developed internally, in record time. Understanding that there is no set deadline for the end of this crisis and that this will inevitably have an impact on the travel planning of its customers, the Company’s subsidiary Smiles announced the extension of the maturity of the mileage program’s categories. It also chose not to consider the current year as the basis for the requalification of next year's customers, since the downgrade analysis of categories would include miles accumulated from segments flown from January to December 2020. The measure allows the customer to gain more time within his/her category, being able to take advantage of the benefits it offers. In the social sphere, to contribute and recognize those fighting COVID-19 on the front lines, the Company started to transport health professionals at no charge, in addition to crediting 1,000 Smiles miles to each GOL segment, flown at no cost. In addition, the Company placed itself at the disposal of the country's authorities to transport COVID-19 vaccines at no charge, together with GOLLOG, considering the fleet and the highly capillary network. Among the measures taken, keeping the integrity and health of the Company's employees is a priority. Since the second half of March 2020, all Company employees with administrative assignments started working from home. Employees are being guided and monitored, uninterruptedly, by the company's leadership and by the People & Culture area that manages human resources. The Company’s greatest commitment will continue to be people’s integrity and health. Following strictly, as has been done so far, the World Health Organization’s guidelines as a commitment to do everything possible to get through this period of turbulence in the best possible way. 1.1.5 Impacts on the financial statements As already mentioned, the pandemic’s impacts were immediate and severe for the Company. The main consequence was the reduction in the operational flight network. The tables below summarize the adjustments made to these financial statements, as well as the details on each of these items and additional disclosures: December 31, 2020 Losses with short-term investments (a) (65,403) Derecognition of cash flow hedge – Fuel (b) (315,286) Derecognition of cash flow hedge - Revenues in US$ (c) (290,345) Renegotiation of lease agreements – IFRS 16 (d) 19,080 Total (651,954) (a) Even though Management of the Company and its subsidiaries have remained faithful to the Company’s investment policy, the abrupt changes in macroeconomic indicators, including cuts to the SELIC rate made by the Federal Government, led the Company to record unusual losses in its short-term investments in sovereign fixed income funds linked to SELIC, as well as in private credit fixed income funds with a high degree of liquidity and high quality of credit. (b) Due to the operations downsizing, the Company derecognized operations designated as cash flow hedges, as a drop is expected in the fuel consumption previously estimated. Accordingly, the Company transferred R$315,286 in the fiscal year ended December 31, 2020 from the “equity valuation adjustment” group in shareholders’ equity to financial results as “derivative losses”. (c) Due to the temporary interruption of all international flights, the Company also derecognized hedge accounting transactions used to reduce the volatility of future revenues in foreign currency (hedged object), using lease agreements as hedge instruments. That said, the Company transferred R$418,527 from the “equity valuation adjustment” group in shareholders' equity to financial results as “exchange rate change expenses”. (d) The Company signed renegotiations of its aircraft and operating engine lease agreements, with no purchase option, including postponement and deferral of payments, postponement of due dates and changes to the amounts due, which led to an increase in the rights of use in PP&E and lease liabilities of R$176,041 and R$156,961, respectively, resulting in R$19,080. December 31, 2020 Balance Sheet – Adjustments Non-current Liabilities Other Comprehensive Income Provision for Post-Employment Benefits (e) (24,541) 24,541 (e) Given the abrupt changes in the macroeconomic scenario, the Company updated the actuarial studies that establish obligations from post-employment benefits, and - mainly due to the drop in the long-term interest rate - the balance related to such obligations was reduced by R$24,541. For further details, see Note 24. On December 31, 2020, the Company carried out impairment tests on the balance of property, plant and equipment, goodwill and slot rights. No provision for impairment was recorded, see Note 16. The Company reassessed the estimated realization of deferred tax assets recognized at the parent company and did not identify any need to adjust the balance, as described in Note 12. 1.2. Capital structure and net working capital On December 31, 2020, the Company had a deficit attributable to equity holders of the parent company of R$14,407,092 (R$7,676,671 on December 31, 2019). The variation observed in the fiscal year ended December 31, 2020 is mainly due to the devaluation of the Real against the U.S. Dollar of around 28.9%, which negatively affected the loss for the fiscal year due to exchange rate changes of R$3,056,226 and the impacts related to the pandemic on the Company's operations, detailed in the previous note. The net working capital on December 31, 2020 is negative by R$7,152,865 (negative by R$5,435,223 on December 31, 2019), the variation is mainly due to the lower balance of cash and cash equivalents and accounts receivable, totaling R$982,595 and R$489,831, respectively, due to the drop in operations from the economic crisis caused by the pandemic. Of the negative net working capital as of December 31, 2020, R$3,309,301 refers to advance ticket sales and mileage program, which are expected to be substantially recognized with services provided by the Company. The operations of the Company are sensitive to changes in the economic scenario and to the volatility of the Real, given that around 95.0% of its indebtedness (loans and financing and leases) are exposed to the U.S. dollar (“US$”) and 36.5% of its costs are also pegged to the U.S. currency, and its ability to adjust the price of fees charged from its customers to recapture the change of the US$ depends on the rational (offer) capacity and behavior of competitors. Over the past four years, Management has taken many measures to adapt the size of GOL’s fleet to demand, matching the supply of seats to the level of demand, thus promoting the maintenance of high occupancy rates, reducing costs and adjusting the capital structure, as well as implementing initiatives to restructure its balance sheet. With the outbreak of the pandemic, which led to an unprecedented economic crisis, Management quickly reorganized the Company’s businesses through the measures detailed in Note 1.1. Management continuously monitors the effects of the crisis and will continue to take measures to strengthen its equity position and strategically manage the market to improve the performance of its operations, in order to ensure the Company's sustainability. In addition to monitoring sales and operations, due to the scenario of uncertainty, Management also monitors possible measures for rebalancing the net working capital in 2021, which in case it becomes necessary, may include: issue long term indebtedness titles to settle current liabilities; new renegotiations with suppliers and financial institutions; reduction of fleet and orders with Boeing. Such measures, in case adopted, will have the objective of optimizing the capital structure and will be based on a detailed analysis of the economic conjecture and perspectives of that particular moment. Our financial statements have been prepared on the assumption of the Company as a going concern, which includes the continuity of operations, realization of assets and compliance with liabilities and commitments in the usual course of business, in conformity with the business plan prepared by Management, reviewed and approved by the Board of Directors. Although there is still a substantial uncertainty about how long it will take the airline industry to recover, and that leads to material uncertainty on our ability to continue as a going concern, the financial statements as of December 31, 2020, do not include any adjustment that may result from inability to continue operating. 1.3. Resumption of flights with Boeing 737 MAX aircraft On March 11, 2019, due to the second accident with a Boeing 737 MAX 8 aircraft, with safety as GOL’s #1 value, the Company’s Management decided to suspend the operations of its 7 aircraft of this model, before any statement from regulators. In response to this measure, the Company quickly reconfigured its flight network, and, as a result, worked to rationally supply the required capacity to meet the demand levels through new lease agreements. The aircraft grounding and additional efforts led the Company to incur unplanned costs, related to, but not limited to: interline fares to relocate passengers, accommodation, meals and other passenger expenses, additional fuel consumption, taxes and landing fees, salaries and charges linked to overtime, payment to lease additional aircraft and negative publicity, disrupting the Company's business. As a result and in recognition of a long-standing partnership, the Company reached and signed an agreement with Boeing. The terms of the agreement are strictly confidential, but have as purpose to provide (a) compensation addressing damages from unplanned additional costs incurred since the aircraft was grounded, to date, and due to the non-delivery of aircraft, as defined in purchase agreements; (b) reduction in the number of firm commitments for 34 aircraft; (c) flexibility to further adjust the number of aircraft; and (d) flexibility to convert existing orders to other models in the MAX family. During 2020, the Company received R$607,466 in cash and cash equivalents; and R$53,508 in credits, which will be offset against outstanding GLA invoices from Boeing, totaling R$660,974. On the other hand, the amount of R$73,600 was recorded: a write-off of “advances for acquisition of PP&E” in property, plant and equipment, since it is a return of “pre delivery payment”, advance of credits in liabilities of R$292,013, and the other amounts recorded in the statement of operations for the year ended December 31, 2020, which refer to: (i) reimbursement of expenses totaling R$246,938, with: R$53,436 referring to expenses incurred in current year and R$193,503 expenses incurred in previous fiscal years; and (ii) R$48,423 as an exchange rate change. After being grounded for 20 months, the Boeing 737-MAX aircraft resumed operations with the effective approval of the regulatory bodies – FAA and ANAC – and full recertification process, ensuring the highest levels of reliability and operational safety. GOL was the first company in the world to resume commercial flights with the MAX, reflecting the Company’s full confidence in this aircraft and the certainty that it is one of the safest and most efficient aircraft in the world. The Company has carried out a rigorous series of technical flights that exceeded the requirements imposed by the aviation regulatory agencies and reintegrated the aircraft into its fleet, with the first commercial flight on December 9, 2020. 1.4. Corporate structure The corporate structure of the Company and its subsidiaries, on December 31, 2020, is shown below: The Company’s equity interest in the capital of its subsidiaries, on December 31, 2020, is shown below: Entity Date of incorporation Location Principal activity Type of control % of interest in the capital stock in the capital stock 2020 2019 GAC March 23, 2006 Cayman Islands Aircraft acquisition Direct 100.00 100.00 Gol Finance Inc. March 16, 2006 Cayman Islands Fundraising Direct 100.00 100.00 Gol Finance June 21, 2013 Luxembourg Fundraising Direct 100.00 100.00 GLA April 9, 2007 Brazil Flight transportation Direct 100.00 100.00 AirFim November 7, 2003 Brazil Investment fund Indirect 100.00 100.00 Smiles Fidelidade August 1, 2011 Brazil Loyalty program Direct 52.60 52.61 Smiles Viagens August 10, 2017 Brazil Tourism agency Indirect 52.60 52.61 Smiles Fidelidade Argentina (a) November 7, 2018 Argentina Loyalty program Indirect 52.60 52.61 Smiles Viagens Argentina (a) November 20, 2018 Argentina Tourism agency Indirect 52.60 52.61 Fundo Sorriso July 14, 2014 Brazil Investment fund Indirect 52.60 52.61 Companies in Shareholding: SCP Trip April 27, 2012 Brazil On-board magazine - 60.00 60.00 (a) Companies with functional currency in Argentine pesos (ARS). The subsidiaries GAC Inc., GOL Finance and GOL Finance Inc., are entities incorporated with the specific purpose of continuing the financial operations and related to the Company's fleet. They do not have an independent management structure and are unable to make independent decisions. Thus, the assets and liabilities of these entities are consolidated in the parent company's financial statements. The subsidiaries Smiles Fidelidade S.A. and Smiles Viajes Y Turismo S.A., incorporated and controlled by Smiles Fidelidade S.A., both headquartered in Buenos Aires, Argentina, have the purpose to promote operations of the Smiles Program and the sale of airline tickets in that country. The subsidiary Smiles Fidelidade also controls Smiles Viagens e Turismo S.A. (“Smiles Viagens”), whose main purpose is intermediating travel organization services, by booking or selling airline tickets, accommodation, tourism packages, among others. The investment funds Airfim and Fundo Sorriso, controlled by GLA and Smiles Fidelidade, respectively, have the characteristic of an exclusive fund and act as an extension of the subsidiaries to carry out operations with derivatives and investments, so that the Company consolidates the assets and liabilities of this fund in its financial statements. 1.5. Corporate reorganization plan On March 24, 2021, Smiles Fidelidade and Company's shareholders approved the proposal for the merger of shares involving both companies. The merger proposal includes the following steps, which will be implemented concurrently and interdependently: • incorporation of Smiles Fidelidade shares by GLA, issuing preferred shares and redeemable preferred shares of GLA to the shareholders of Smiles Fidelidade; • incorporation of GLA’s shares by the Company, issuing preferred shares and redeemable preferred shares of the Company to GLA’s shareholders; and • redemption of GLA’s and the Company's redeemable preferred shares, with cash payment based on the redemption of the Company's redeemable preferred shares to the shareholders of Smiles Fidelidade. The merger of shares will result in the merger of the two operating subsidiaries of the Company, GLA and Smiles Fidelidade, with the purpose to maximize the value for all shareholders by aligning the interests of both companies, while ensuring the continuity of the airline and the loyalty program, simplify corporate governance, strengthen the capital structure and reduce operating, administrative and financial costs, as well as tax inefficiencies. Further details about this operation, including the definitions of exchange ratios, protocol and reasoning, and other related documents, were disclosed by Management and are available for reading and consultation at the Company's electronic address. 1.6. Compliance program Since 2016, the Company has adopted several measures to strengthen and expand its internal control and compliance programs, among which we can highlight: • hiring specialized companies to assess risks and review internal controls regarding fraud and corruption; • integrating risk, compliance and internal control functions through the Executive Board of Corporate Risks, Compliance and Internal Controls, reporting directly to the CEO and with independent access to the Board of Directors and the Statutory Audit Committee; • monitoring transactions that represent greater risks from the compliance point of view; • updating the procurement policy and improving the procedures to supervise the execution of contracted services; • evaluating the third-party contracts in accordance with internal compliance policy; • reviewing the code of ethics, the conduct manual, and many compliance policies, including massive mandatory training; • developing and disclosing the rules of conduct for third parties in relation to GOL; • mapping risks and periodically reviewing them, including compliance risks; • constant training and communication actions on topics relevant to compliance, including encouraging the use of the ethics channel; and • constant support to areas to guide on the compliance with compliance policies. Management is constantly reinforcing to its employees, customers, and suppliers its commitment to continue improving its internal control and compliance programs. As previously disclosed in the financial statements for the fiscal year ended December 31, 2017, 2018, and 2019, the Company signed an agreement with the Brazilian Federal Public Ministry in December 2016 (“Agreement”), through which the Company agreed to pay R$12 million in fines and make improvements to its compliance program. In turn, the Federal Public Ministry agreed not to file any lawsuits related to activities under the Agreement. In addition, the Company paid R$4.2 million in fines to the Brazilian tax authorities. The Company voluntarily informed the U.S. Department of Justice (“DOJ”), the Securities and Exchange Commission (“SEC”) and the Brazilian Securities and Exchange Commission (“CVM”) about the Agreement and the external independent investigation conducted by an independent committee of the Company. The investigation was completed in April 2017 and revealed that immaterial payments were made to politically exposed people. None of the Company’s current employees, representatives or members of the Board of Directors and Management was aware of any illegal purpose behind the transactions identified, or of any illegal benefit for the Company from the transactions under investigation. The Company reported the conclusions of the investigation to the relevant authorities and will keep them informed of any future developments regarding this issue, as well as monitor the analyses already started by these bodies. These authorities may impose fines and possibly other sanctions to the Company. There were no further developments on the subject during the fiscal year ended December 31, 2020.

2. Management' statement, basis

2. Management' statement, basis for preparing and presenting the financial statements	12 Months Ended
	Dec. 31, 2020
Management Statement Basis For Preparing And Presenting Financial Statements
Management' statement, basis for preparing and presenting the financial statements	2. Management’s statement, basis for preparing and presenting the financial statements The Company’s financial statements were prepared in accordance with the International Financial Reporting Standards (“IFRS”) issued by the International Accounting Standards Board (“IASB”). The Company’s financial statements were prepared using the Brazilian Real (“R$”) as the functional and presentation currency. Figures are expressed in thousands of Brazilian reais, except when stated otherwise. The items disclosed in foreign currencies are duly identified, when applicable. The preparation of the Company’s financial statements requires Management to make judgments, use estimates, and adopt assumptions affecting the stated amounts of revenues, expenses, assets, and liabilities. However, the uncertainty inherent in these judgments, assumptions, and estimates could give rise to results that require a material adjustment of the book value of certain assets and liabilities in future reporting fiscal years. The Company is continually reviewing its judgments, estimates, and assumptions. Management, when preparing these financial statements, used the following disclosure criteria: (i) regulatory requirements; (ii) relevance and specificity of the information on the Company’s operations to users; (iii) the informational needs of users of financial statements; and (iv) information from other entities in the same industry, mainly in the foreign market. Management confirms that all the material information in these financial statements are being demonstrated and corresponds to the information used by Management in the development of its business management activities. The financial statements have been prepared based on historical cost, with the exception of the following material items recognized in the statements of financial positions: · short-term investments classified as cash and cash equivalents measured at fair value; · short-term investments mainly comprising exclusive investment funds, measured at fair value; · restricted cash measured at fair value; · derivative financial instruments measured at fair value; and · investments accounted for using the equity method. The Company’s financial statements as of December 31, 2020 and 2019 and for the years ended December 31, 2020, 2019 and 2018

3. Approval of financial statem

3. Approval of financial statements	12 Months Ended
	Dec. 31, 2020
Approval Of Financial Statements
Approval of financial statements	3. Approval of financial statements The approval and authorization for the issuance of these financial statements took place at the Board of Directors’ meeting held on March 24, 2021.

4. Summary of significant accou

4. Summary of significant accounting practices	12 Months Ended
	Dec. 31, 2020
Disclosure of changes in accounting estimates [abstract]
Summary of significant accounting practices	4. Summary of significant accounting practices 4.1. Consolidation The financial statements include the financial statements of the Company and of the subsidiaries in which the Company has a direct or indirect control. Control is obtained when the Company: · has power over the investee; · is exposed, or has rights, to variable returns from its involvement with the investee; and · has the ability to use that power to affect its returns. There is generally a presumption that a majority of voting rights results in control. To support this presumption and when the Company holds less than the majority of the voting rights of an investee, the Company considers all relevant facts and circumstances when assessing if it has power in relation to an investee. The Company reassesses if it has control over an investee if facts and circumstances indicate changes in one or more of the three control elements listed above. The consolidation of a subsidiary begins when the Company obtains control over the subsidiary and ends when the Company loses control over the subsidiary. The variation in equity interest in subsidiary, without loss of control, is accounted for as an equity transaction. Accounting practices were uniformly applied to all consolidated companies, consistent with those used by the parent company and adopted in the previous fiscal year. All transactions and balances between GOL and its subsidiaries were eliminated in the consolidation, as well as the unrealized profits or losses arising from these transactions, including charges and taxes. The income (expenses) and each component of other comprehensive income (expenses) are attributed to the shareholders of the parent company and to the non-controlling interest, even if this results in a loss to non-controlling shareholders. 4.2. Investments Investments in associates are initially recognized at cost and subsequently adjusted using the equity method. If the investee generates operating losses that lead the shareholders’ equity to become negative, the Company adopts the provisions set forth in IAS 28 - “Investment in Associates and Joint Ventures” 4.3. Cash and cash equivalents The Company classifies in this group the balances of cash, bank deposits, automatic financial investments, and securities of immediate liquidity, which, according to analyses, are readily convertible into a known amount of cash with an insignificant risk of change in value. Financial investments classified in this group, due to their very nature, are measured at fair value through profit or loss and will be used by the Company in a short period of time. 4.4. Short-term investments In the presentation and measurement of financial assets, the Company considers the provisions of IFRS 9 - “Financial Instruments”, which establishes that financial assets must be initially measured at fair value less costs directly linked to their acquisition. In turn, the subsequent measurement is divided into two categories: 4.4.1. Amortized cost Short-term investments are measured at amortized cost when all of the following conditions are met: · the Company plans to hold the financial asset to collect the contractual cash flows; and · the contractual cash flows represent only the payments of interest and principal (“SPPI”). 4.4.2. Fair value · through comprehensive income (expenses) · through profit or loss 4.5. Restricted cash Restricted cash includes financial investments measured at fair value through profit or loss, used mainly as guarantees linked to financial instruments, as well as deposits for lease transactions. 4.6. Trade receivables They are measured based on the invoiced figure, net of estimated losses on provision for loan losses, and approximate the fair value given their short-term nature. In compliance with IFRS 9 – “Financial Instruments”, the provision for loan losses was measured through a simplified approach, using historical data, projecting the expected loss over the contractual life, by segmenting the receivables portfolio into groups that have the same receipt pattern and according to the respective maturity terms. In addition, for certain cases, the Company carries out individual analyses to assess the receipt risks. 4.7. Inventories Inventory balances mainly include materials for maintenance and replacement of parts. Inventories are measured at the average acquisition cost plus expenses such as non-recoverable taxes and customs expenses incurred in acquisition and transportation expenses until the current location of the items. Provisions for inventory obsolescence are recorded for those items that have no expectation of realization. 4.8. Income tax and social contribution 4.8.1. Current taxes In Brazil, includes income tax (“IRPJ”) and social contribution on profit (“CSLL”), which are calculated monthly based on the taxable income, after offsetting tax losses and negative social contribution base, limited to 30% of the taxable income, applying the rate of 15% plus an additional 10% for the IRPJ and 9% for the CSLL. 4.8.2. Deferred taxes Deferred taxes represent credits and debits on IRPJ’s tax losses and negative CSLL bases, as well as temporary differences between the tax and accounting bases. Deferred tax and contribution assets and liabilities are classified as non-current. An impairment loss on these assets is recognized when the Company’s internal studies indicate that the future use of these credits is not probable. Deferred tax assets and liabilities are shown net if there is an enforceable legal right to offset tax liabilities against tax assets. However, for presentation purposes, if related to taxes levied by the same tax authority under the same taxable entity, the balances of tax assets and liabilities that do not meet the legal criterion of realization are disclosed separately. Deferred tax assets and liabilities were measured at the rates that are expected to be applicable in the period in which the asset is realized, or the liability is settled, based on the tax rates and legislation in force on the date of the financial statements. The forecast of future taxable income on tax losses and negative social contribution base is prepared based on the business plans and are reviewed and approved annually by the Company’s Board of Directors. 4.9. Rights and obligations with derivative financial instruments Variations in interest rates, foreign exchange rates and aviation fuel prices expose the Company and its subsidiaries to risks that may affect their financial performance. To mitigate such risks, the Company, through its subsidiaries, contracts derivative financial instruments that may or may not be designated for hedge accounting and, if designated, are classified as cash flow hedge. Derivatives financial instruments are measured at fair value at recognition and at subsequent reporting dates. 4.9.1. Derivative financial instruments not designated as hedge accounting The Company may contract derivative financial instruments that are not designated for hedge accounting when the Risk Management’s purposes do not require such classification. Transactions not designated as hedge accounting have the change in their fair value accounted for directly in the financial results. 4.9.2. Derivative instruments classified as cash flow hedge The instruments designated as cash flow hedge have the purpose of protecting future income (expenses) arising from changes in interest rates, fuel prices and foreign exchange. The effectiveness of the variations is estimated based on statistical methods of correlation and by the proportion between the hedge’s gains and losses and the variation of the costs and expenses protected. The effective variations in fair value are recorded in the shareholders’ equity in “Other comprehensive income”, up to the recognition of the result of the hedged object. The inefficiencies found in each reporting period are recognized in the financial income (expenses). The hedge transactions recorded in “Other comprehensive income” are net of tax effects. 4.9.3. Derecognition and write-off of derivative financial instruments The hedge accounting is discontinued prospectively when the Company and its subsidiaries (i) cancel the protection relationship; (ii) the derivative instrument expires or is sold, terminated or executed, (iii) when there is low predictability of realization of the hedge’s object, or (iv) when it no longer qualifies as hedge accounting. If the operation is discontinued, any gains or losses previously recognized in “Other comprehensive income” and accumulated in the shareholders’ equity up to that date are immediately recognized in the income (expenses) for the fiscal year. 4.10. Deposits 4.10.1. Deposits for the maintenance of aircraft and engines Refer to payments made in U.S. dollars to lessors for the future maintenance of aircraft and engines. The realization of these assets occurs, substantially, in the use of the deposit for payment to the workshop when the maintenance is carried out or through the receipt of financial resources, according to the negotiations carried out with the lessors. The exchange rate change of these payments is recognized as an expense or income in the financial results. Management regularly assesses the impairment of these deposits based on the eligibility of the application of such amounts in future maintenance events and believes that the figures reflected in the balance sheet are realizable. Some of the agreements foresee that, if there are no maintenance events with the possibility of using the deposits, the deposits for this operation are not refundable. Such amounts are retained by the lessor and represent payments made according to the use of the components until the return date. Accordingly, the amounts in this category are recognized directly in the income (expenses) for the fiscal year under “Maintenance, material and repairs”, considering the regular impairment test or when the asset is returned. In addition, the Company has agreements with some lessors to replace deposits for credit bills, which can be executed by the lessors if the maintenance of the aircraft and engines does not occur according to the review schedule. Several aircraft lease agreements do not require maintenance deposits and have credit bills to ensure the maintenance is carried out in the scheduled periods. Until December 31, 2020, no credit bill had been executed against the Company. 4.10.2. Court deposits In the course of the lawsuits brought against the Company and on which the legitimacy of the claims is questioned, the Company may be required to make appeals and/or judicial deposits to continue its defense strategy. These amounts are monetarily restated, mostly by inflation indexes, and are characterized as non-reachable resources by the Company, pending a judicial decision. 4.10.3. Deposits in guarantee and collateral for lease agreements Deposits and guarantees are denominated in U.S. dollars and updated monthly by the foreign exchange rates, without interest income and are refundable to the Company at the end of the lease agreements. 4.11. Property, plant and equipment Property, plant and equipment, including rotables (spare parts), are recorded at acquisition and/or construction cost. Interest and financial charges directly related to the acquisition, construction or production of a good that necessarily requires significant time to complete are capitalized as part of the cost of the corresponding asset. Every item of the property, plant and equipment that has a significant cost in relation to the total asset is depreciated separately. The estimated economic useful life of property, plant and equipment, for purposes of depreciation, is shown in Note 15. The estimated market price at the end of its useful life is the premise used to set the residual value of the Company’s property, plant and equipment. The residual value and useful life of the assets are reviewed annually by the Company. Any variation due to changes in the expectation of using such items results in prospective changes. The book value of the property, plant and equipment is analyzed to verify possible impairment loss when facts or changes in circumstances indicate that the book value is greater than the estimated recoverable amount. The book value of the aircraft is annually tested for impairment, even if there are no circumstances that indicate losses. An item of property, plant and equipment is written-off after disposal or when there are no future economic benefits resulting from the continued use of the asset. Any gains or losses on the sale or write-off of an item are established by the difference between the amount received on the sale and the book value of the asset and are recognized in the income (expenses). Additionally, the Company adopts the following treatment for the groups below: 4.11.1. Prepayments for aircraft acquisition Refers to prepayments in U.S. dollars made to Boeing for the acquisition of 737-MAX aircraft. Prepayments are converted at the historical rate. 4.11.2. Lease agreements Up to December 31, 2018, for lease agreements in which the risks and benefits of the leased asset were transferred to the Company, the asset was recognized in the balance sheet with a corresponding entry in the financial liability, at the beginning of the lease term, at amounts equivalent to the value fair value of the leased asset or, if lower, at the present value of the minimum lease payment. Leased assets were depreciated over their useful lives. However, when there was no reasonable certainty that the Company would obtain the property at the end of the lease term, the asset was depreciated over its estimated useful life or within the lease term, whichever is less. The other aircraft and engine leases were classified under the operating modality, and payments were recognized as an expense in the statement of operations on a straight-line basis over the term of the agreement, under the item “Operating Leases”. The future payments of such agreements did not represent an obligation recorded in the balance sheet; however, the commitments undertaken were duly presented in the Notes. As of January 1, 2019, the Company started recording lease agreements in accordance with IFRS 16 – “Leases”, which differs significantly from the accounting practice previously adopted. IFRS 16 – “Leases” established the principles for recognizing, measuring, presenting and disclosing lease transactions and required lessees to recognize all leases in accordance with a single statement of financial position model, similar to the recognition of finance leases pursuant to IAS 17 – “Leases”. The Company adopts exemptions for lessees, set forth in the standard, for leases of “low value” assets, for example, personal computers, and short-term leases, i.e., leases for which the term ends within 12 months or less. At the beginning of a lease, the Company, as lessee, recognizes a liability to carry out payments (lease liability) and an asset representing the right to use the leased item for the lease term (right-of-use asset). The Company recognizes interest expenses separately from the lease liability and depreciation expenses of the right-of-use asset. 4.11.2.1. Right-of-use assets The Company recognizes the right-of-use assets on the starting date of the lease (that is, on the date when the underlying asset is available for use). Right-of-use assets are measured at cost, less any accumulated depreciation and impairment losses, and adjusted for any new remeasurements of lease liabilities. The cost of right-of-use assets includes the amount of recognized lease liabilities, initial direct costs incurred and lease payments made up to the starting date, less any lease incentives received. Right-of-use assets are depreciated on a straight-line basis over the shortest period between the lease term and the estimated useful lives of the assets. In certain cases, if the ownership of the leased asset is transferred to the Company at the end of the lease term or if the cost represents the exercise of a call option, depreciation is calculated using the estimated useful life of the asset. The cost of a right-of-use asset also includes an estimate of the costs to be incurred by the Company when returning the underlying asset, restoring the underlying asset to the condition required by the lease terms and conditions. The Company incurs an obligation for these costs, either on the start date or due to using the underlying asset during the term of the contract. 4.11.2.2. Lease liabilities On the lease’s start date, the Company recognizes lease liabilities measured at the present value of lease payments to be made during the lease term. Lease payments include fixed payments (including, substantially, fixed payments) less any lease incentives receivable, variable lease payments that depend on an index or rate and expected amounts to be paid under residual value guarantees. Lease payments also include the exercise price of a purchase option reasonably certain to be exercised by the Company and payment of fines for terminating the lease, if the lease term reflects the exercise of the option to terminate the lease by the Company. Variable lease payments that do not depend on an index or rate recognized as expenses in the period in which the event or condition that generates these payments occurs. When calculating the present value of lease payments, the Company uses its additional loan rate on the start date because the interest rate implied by the lease is not easily ascertained. After the start date, the value of the lease liability is increased to reflect the time elapsed and, therefore, the increase in interest and reduced for the lease payments made. In addition, the book value of lease liabilities is remeasured if there is a change, a change in the lease term, a change in lease payments (for example, changes in future payments resulting from a change in an index or rate used to determine such lease payments) or a change in the valuation of a call option on the underlying asset. The Company reassess the lease liability whenever certain events occur, such as a change in the term of the lease or a change in future lease payment flows due to a variation in the reference index or rate used to calculate such payments. Among the adoption methods provided for in the standard, the Company chose to adopt the modified retrospective approach. 4.11.2.3. Sale-leaseback transactions The calculation to recognize the income (expenses) of sale-leaseback transactions uses the fair value of the negotiated asset as a reference. The source of information to obtain the fair value is the market price for items of a similar nature, considering the asset condition. After the fair value is defined, gains or losses are initially calculated based on the difference between the fair value and the book value of the assets and subsequently adjusted according to the proportionality of the right of use transferred to the lessor (the latter being the effective value recognized in the result as income (expenses)). The proportionality calculation is carried out considering the present value of the adjusted lease by the anticipated payments or additional financing. 4.11.3. Capitalization of expenses with major maintenance of engines, aircraft, landing gear and APU (auxiliary power units) Expenses with major maintenance events, which include replacement of parts and labor, are capitalized only when there is an extension of the estimated useful life of the corresponding asset. Such costs are capitalized and depreciated over the estimated period to be incurred until the next major maintenance or the return of the asset, whichever occurs first. Expenses incurred that do not extend the useful lives of assets are recognized directly in the statement of operations. 4.12. Intangible assets 4.12.1. Finite useful life Intangible assets acquired are measured at the cost of their initial recognition. After initial recognition, intangible assets with finite useful lives, usually software, are stated at cost, less the accumulated amortization and impairment losses, when applicable. Intangible assets generated internally, excluding development costs, are not capitalized, and the expense is reflected in the statement of operations for the fiscal year in which it was incurred. The useful life of an intangible asset is evaluated as finite or indefinite. Intangible assets with finite lives are amortized over their useful economic lives and are assessed for impairment whenever there is an indication of impairment. The amortization period and method for an intangible asset with a finite life are reviewed at least at the end of each fiscal year. The amortization of intangible assets with finite lives is recognized in the statement of operations in the expense category consistent with the useful economic life of the intangible asset. 4.12.2. Indefinite useful life 4.12.2.1. Goodwill In this category, the amounts corresponding to the goodwill arising from business combinations carried out by the subsidiaries GLA and Smiles Fidelidade are recorded. The goodwill value is tested annually by comparing the book value with the recoverable value of the cash-generating unit. Management evaluates and establishes assumptions to assess the impact of macroeconomic and operational changes, to estimate future cash flows and measure the recoverable value of assets. 4.12.2.2. Airport operation rights (“Slots”) In the business combination of GLA and Webjet, slots were acquired, recognized at their fair values on the acquisition date and were not amortized. The estimated useful life of these rights was considered indefinite due to several factors and considerations, including requirements and permits to operate in Brazil and the limited availability of use rights at the most important airports in terms of air traffic volume. The book value of these rights is assessed annually, based on the GLA cash-generating unit regarding its recoverable amount or in cases of changes in circumstances that indicate that the book value may not be recoverable. No impairment loss has been recorded to date. 4.13. Loans and financing Loans and financing are initially recognized at fair value less any directly attributable transaction costs. After the initial recognition, these financial liabilities are measured at amortized cost using the effective interest method, except for the contracted derivatives linked to Exchangeable Senior Notes, which are measured at fair value through profit or loss. Gains and losses are recognized in the statement of operations when the liabilities are written off. The amortized cost is calculated considering any negative discount or premium in the contract and fees or costs that are fully part of the effective interest rate method. Amortization using the effective interest rate method is included as a financial expense in the statement of operations, except when subject to capitalization. 4.14. Suppliers and other obligations They are initially recognized at fair value and subsequently increased, when applicable, by the corresponding charges and monetary and exchange rate changes incurred up to the closing dates of the financial statements. 4.14.1. Suppliers - forfeiting Management carried out a negotiation with suppliers with the purpose of extending payment terms. Accordingly, the Company signed an agreement with financial institutions that allows receivables from its suppliers to be anticipated. Considering that the anticipation of this receipt with the financial institutions is an option of the suppliers, as well, the Company is not reimbursed and/or benefited by the financial institution with discounts for payment before the maturity date agreed with the supplier, there is no change in the degree of subordination in case of judicial execution. 4.15. Advance ticket sales Represents the Company’s obligations to provide air transportation services and other ancillary services to its clients, net of breakage revenue already recognized in the statement of operations, as detailed in Note 4.18.1. 4.16. Provisions Provisions are recognized when the Company has a present obligation, formalized or not, as a result of a past event, and it is probable that economic benefits will be required to settle the obligation and a reliable estimate of its value can be made. 4.16.1. Provision for aircraft return Aircraft lease agreements regularly provide for contractual obligations establishing conditions for return. In these cases, the Company makes provisions for the return costs, since these present obligations, arising from past events and which will generate future disbursements, which are measured with reasonable certainty. These expenses basically refer to aircraft reconfiguration (interior and exterior), obtaining licenses and technical certifications, return checks, painting, among others, as established in the agreement. The estimated cost is initially recorded at the present value in property, plant and equipment, and the corresponding entry of the provision for aircraft return is recorded in the “Provisions”. After the initial record, the liability is updated according to the capital remuneration rate estimated by the Company, with a corresponding entry in the income (expenses). Any changes in the estimate of expenses to be incurred are recorded prospectively. 4.16.2. Provision for engine return They are estimated based on the minimum contractual conditions under which the equipment must be returned to the lessor, observing the historical costs incurred and the conditions of the equipment at the time of the appraisal. These provisions are recorded in the statement of operations for the fiscal year from the moment the contractual requirements are met, and the next maintenance is scheduled for a date later than the date scheduled to return the engine. The Company estimates the provision for the return of the engine according to the expense expected to incur and when the amount can be reliably estimated. The amount of a provision will be the present value of the expenses that are expected to be required to settle the minimum obligation. The term will be based on the date that the leased engine is expected to be returned, that is, the term of the lease. 4.16.3. Provision for tax and labor risks The Company is a party to a number of judicial and administrative proceedings, mainly in Brazil, whose assessments of the likelihood of loss include an analysis of the available evidence, the hierarchy of laws, the available jurisprudence, the most recent court decisions, and their relevance in the legal system, as well as the assessment of external lawyers. Provisions are reviewed and adjusted to reflect changes in circumstances, such as the applicable statute of limitations, conclusions of tax inspections, or additional exposures identified based on new matters or court decisions. 4.17. Post-employment benefits As of the fiscal year ended December 31, 2019, the Company started to recognize actuarial assets and liabilities related to the health care plan benefits offered to its employees in accordance with IAS 19 – “Employee Benefits”. Actuarial gains and losses are recognized in other comprehensive income (expenses) based on the actuarial report prepared by independent experts, while the benefits paid directly by the Company, the cost of current service and the cost of interest are recognized in the income (expense) for the fiscal year. In 2019, Management assessed the impact of not adopting the standard in previous fiscal years and concluded that the effects were immaterial and did not lead to losses to users of the previously disclosed financial statements. 4.18. Recognition of revenue 4.18.1. Revenue from passengers, cargo and ancillary services Passenger revenue is recognized when air transportation is actually provided. Tickets sold but not yet used are recorded in the item of advance from ticket sales, representing deferred revenue from tickets sold to passengers to be transported at a future date, net of the estimated breakage revenue. Breakage revenue calculates, on a historical basis, tickets issued that will expire due to non-use, that is, passengers who have purchased tickets and are highly likely not to use them. The calculations are reviewed at least once a year to reflect and capture changes in customer behavior in relation to ticket expiration. Revenues from cargo shipments are recognized when performance obligations are met. Other revenues that include charter services, on-board sales services, flight rebooking fees, baggage drop-off, and other additional services are recognized along with the primary passenger transportation obligation. 4.18.2. Mileage revenue The Smiles Program has the purpose to build customer loyalty by granting mileage credits to participants. The obligation generated by issuing miles is measured based on the price at which the miles were sold to Smiles’ air and non-air partners, considered as the fair value of the transaction. The revenue is recognized in the income (expenses) for the fiscal year when the miles are redeemed by participants in the Smiles Program and exchanged for awards with their partners. From the perspective of the consolidated financial statements, the cycle of recognition of revenue in relation to the exchange of miles from the Smiles Program for airline tickets is only completed when passengers are effectively transported. The subsidiary Smiles acts as an agent and fulfills its performance obligation when participants redeem the miles of the Smiles Program and exchange them for awards with its partners. This is the moment when revenue is recognized in the income (expenses). Accordingly, the gross revenue is shown net of its respective direct variable costs related to making goods and services available to participants. As a result of its characteristics, the miles program also provides the possibility of recognizing a breakage revenue, which in turn is established based on the calculation of miles that have a high expiration potential to their non-use by the Smiles Program’s participants. The calculation is applied to the miles issued in the period, giving rise to the breakage revenue. It should be noted that future events can significantly change the profile of customers and their historical pattern of redemption of miles. Such changes may lead to significant changes in the balance of deferred revenue, as well as in the recognition of breakage revenue, statistical calculation reviewed annually. 4.18.3. Adoption of hedge accounting to protect future revenues with passengers and ancillary services In the regular course of its operations, the Company has recurring sales in U.S. dollars (“US$”), mainly as a result of international routes in South, Central, and North America. Accordingly, as of August 1, 2019, Management has adopted the cash flow hedge accounting as a way to reduce the volatility for these future foreign currency revenues, which are considered highly probable, as provided for and stated in Paragraph 6.3.1 of IFRS 9 – “Financial Instruments”, using as hedge instruments the lease agreements recorded as a debt due to the adoption of IFRS 16 – “Leases”. With the adoption of hedge accounting, the foreign exchange gains and losses arising from the lease agreements (hedge instrument) will be accumulated in shareholders’ equity, “Adjustments to equity valuation”, appropriated to the Company’s income (expenses) upon the realization of the revenues from sales in US$. Hedge accounting derives from the natural hedge of the Company’s operations, portrayed by cash flow (revenues and amortization of debt in US$) and does not represent an increase in financial costs, allowing the elimination of some of the exchange rate volatility in the Company's income (expenses). The final position of shareholders’ equity is not affected by the adoption of this accounting practice. The elements of hedge accounting are: (1) hedged: highly probable sales revenue in US$; (2) hedge instrument: lease contracts linked to the US$; (3) amount designated: (1) hedged object: highly probable sales revenue in US$; (2) hedge instrument: 50 lease agreements linked to US$; (3) designated amount: 60 months of highly probable revenues based on a range of 80 to 85% of historically earned revenues, totaling US$903,102 at the initial adoption; (4) nature of the hedged risk: exchange rate change; (5) specification of the hedged risk: USD/BRL spot exchange rate change; (6) type of hedge: cash flow. 4.19. Share-based compensation 4.19.1. Stock options The Company offers stock option plans to its executiv

5. Cash and cash equivalents

5. Cash and cash equivalents	12 Months Ended
	Dec. 31, 2020
Cash And Cash Equivalents
Cash and cash equivalents	5. Cash and cash equivalents 2020 2019 Cash and bank deposits 428,812 418,447 Cash equivalents 234,018 1,226,978 Total 662,830 1,645,425 The breakdown of cash equivalents is as follows: 2020 2019 Local currency Private bonds and deposits with banks 170,359 514,356 Automatic deposits 59,936 5,505 Total local currency 230,295 519,861 Foreign currency Deposits with banks 3,723 707,117 Total foreign currency 3,723 707,117 Total 234,018 1,226,978

6. Short-term investments

6. Short-term investments	12 Months Ended
	Dec. 31, 2020
Short-term Investments
Short-term investments	6. Short-term investments Weighted average rate (p.a.) 2020 2019 Local currency Government bonds 72.7% of CDI 22,465 56,532 Investment funds 77.7% of CDI 603,698 862,868 Total local currency 626,163 919,400 Foreign currency Deposits with banks 0.6% 2,415 1,713 Government bonds - - 29,684 Investment funds 0.6% 757 2,965 Total foreign currency 3,172 34,362 Total 629,335 953,762

7. Restricted cash

7. Restricted cash	12 Months Ended
	Dec. 31, 2020
Restricted cash [absract]
Restricted cash	7. Restricted cash Weighted average rate (p.a.) 2020 2019 Local currency Import financing 96.6% of CDI 213,153 138,164 Letter of guarantee - Legal proceedings 85.8% of CDI 56,440 85,351 Letter of credit – Maintenance deposit 97.9% of CDI 155,184 136,438 Collateral for working capital lines of credit 99.9% of CDI 52,927 9,922 Total local currency 477,704 369,875 Foreign currency Collateral for financing with Ex-lm Bank 0.2% 31,206 - Escrow deposits for hedge margin - 35,697 74,431 Total foreign currency 66,903 74,431 Total 544,607 444,306 Current 355,769 304,920 Non-current 188,838 139,386

8. Trade receivables

8. Trade receivables	12 Months Ended
	Dec. 31, 2020
Trade and other receivables [abstract]
Trade receivables	8. Trade receivables 2020 2019 Local currency Credit card administrators 318,869 740,967 Travel agencies 266,086 253,494 Cargo agencies 29,902 33,677 Airline partner companies 8,877 291 Other 13,845 15,690 Total local currency 637,579 1,044,119 Foreign currency Credit card administrators 77,616 121,844 Travel agencies 13,960 36,845 Cargo agencies 122 1,384 Airline partner companies 19,464 30,740 Other 9,005 11,550 Total foreign currency 120,167 202,363 Total 757,746 1,246,482 Allowance for expected loss on trade receivables accounts (18,047) (16,952) Total trade receivables 739,699 1,229,530 The aging list of trade receivables, net of allowance for expected loss on trade receivables accounts, is as follows: 2020 2019 Not yet due Until 30 days 459,338 567,567 31 to 60 days 88,893 213,334 61 to 90 days 33,121 100,478 91 to 180 days 54,832 187,883 181 to 360 days 41,484 76,902 Above 360 days 256 1,499 Total not yet due 677,924 1,147,663 Overdue Until 30 days 10,278 47,959 31 to 60 days 21,677 23,290 61 to 90 days 13,501 3,986 91 to 180 days 11,474 3,009 181 to 360 days 785 421 Above 360 days 4,060 3,202 Total overdue 61,775 81,867 Total 739,699 1,229,530 The changes in an expected loss on trade receivables are as follows: 2020 2019 Balance at the beginning of the year (16,952) (11,284) (Additions) and Exclusions (1,095) (13,499) Unrecoverable Amounts - 7,831 Balances at the end of the year (18,047) (16,952)

9. Inventories

9. Inventories	12 Months Ended
	Dec. 31, 2020
Disclosure Of Inventories Abstract
Inventories	9. Inventories 2020 2019 Consumables 14,533 14,274 Parts and maintenance materials 181,105 184,939 Total 195,638 199,213 The changes in the provision for obsolescence are as follows: 2020 2019 Balances at the beginning of the year (14,302) (12,808) Additions (702) (2,168) Write-offs 2,142 674 Balances at the end of the year (12,862) (14,302)

10. Advance to suppliers and th

10. Advance to suppliers and third parties	12 Months Ended
	Dec. 31, 2020
Advance To Suppliers And Third Parties
Advance to suppliers and third parties	10. Advance to suppliers and third parties 2020 2019 Advance to domestic suppliers 290,664 95,596 Advances to international suppliers 68,873 25,316 Advance for materials and repairs 48,933 48,930 Other advances - 20,883 Total advances to suppliers 408,470 190,725 Current 318,769 142,338 Non-current 89,701 48,387

11. Recoverable taxes

11. Recoverable taxes	12 Months Ended
	Dec. 31, 2020
Recoverable Taxes
Recoverable taxes	11. Recoverable taxes 2020 2019 IRPJ and CSLL prepayments 109,231 195,864 Withholding income tax - 3,969 PIS and COFINS to recover (*) 387,033 273,152 Value added tax (VAT) abroad 3,998 4,650 Other 5,097 6,181 Total 505,359 483,816 Current 186,955 309,674 Non-current 318,404 174,142 (*) During the fiscal year ended December 31, 2020, the subsidiary GLA recorded PIS and COFINS extemporaneous tax credits, in the total amount of R$126,675. As of December 31, 2019, the subsidiaries Smiles Fidelidade and GLA calculated out-of-date PIS and COFINS credits, totaling R$49,518 and R$91,066, respectively.

12. Deferred taxes

12. Deferred taxes	12 Months Ended
	Dec. 31, 2020
Deferred tax assets and liabilities [abstract]
Deferred taxes	12. Deferred taxes 12.1. Deferred tax assets (liabilities) The positions of deferred assets and liabilities are presented below and comply with the enforceable offset legal rights that consider taxes levied by the same tax authority under the same tax entity. December 31, 2019 Statement of operations Shareholders’ Equity and Others (*) December 31, 2020 Deferred assets Income tax losses carry forward 42,795 (5,186) 312 37,921 Negative basis of social contribution 14,360 (710) - 13,650 Temporary differences: Allowance for expenses loss on trade receivables and other credits 1,958 46 - 2,004 Provision for legal proceedings and tax liabilities 696 (779) - (83) Others - 15 56 71 Total deferred taxes – assets 59,809 (6,614) 368 53,563 Deferred liabilities Temporary differences: Derivative transactions (42,154) 13,252 - (28,902) Breakage provision (196,206) 2,708 - (193,498) Slots (353,226) - - (353,226) Depreciation of engines and parts for aircraft maintenance (183,977) (10,812) - (194,789) Reversal of goodwill amortization for tax purposes (127,659) - - (127,659) Allowance for expenses loss on trade receivables and other credits 200,088 1,358 - 201,466 Provision for legal proceedings and tax liabilities 91,051 33,672 - 124,723 Provisions for aircrafts redelivery 146,239 44,539 - 190,778 Aircraft leases and others 64,379 (53,793) - 10,586 Unrealized profits 68,111 1,732 - 69,843 Others 89,313 (8,463) 214 81,064 Total deferred taxes – liabilities (244,041) 24,193 214 (219,634) Total Effect of deferred taxes - Income (Expenses) - 17,579 - - (*) Exchange rate change recognized in other comprehensive income (expenses). The direct subsidiary GLA has tax losses and negative bases of social contribution in the determination of taxable profit, to be offset against 30% of future annual tax profits, with no prescription period, not recorded in the balance sheet, in the following amounts: GLA 2020 2019 Acumulated income tax losses 8,401,388 5,017,227 Negative basis of social contribution 8,401,388 5,017,227 Potential tax credit 2,856,472 1,705,857 Management estimates that deferred tax credits, recorded on tax losses and negative social contribution basis, will be realized as follows: Year Amount 2021 1,438 2022 9,128 2023 12,657 2024 13,191 2025 to 2030 15,157 Total 51,571 The reconciliation of effective income tax and social contribution rates for the fiscal year ended on December 31, 2020, 2019 and 2018 is as follows: 2020 2019 2018 Income (loss) before income tax and social contribution (5,817,293) 388,945 (482,596) Combined tax rate 34% 34% 34% Income at the statutory tax rate 1,977,880 (132,241) 164,083 Adjustments to calculate the effective tax rate: Equity method investees (149) 26 132 Tax rate difference on results of offshore subsidiaries (4,734) (207,565) 201,043 Non-deductible expenses, net (124,577) (61,219) 161,815 Exchange rate change on foreign investments (174,151) (101,329) (173,964) Interest on shareholders’ equity 8,693 8,212 6,998 Extemporaneous tax credit - 31,942 - Deferred tax assets (liabilities) net recognized (1,760,920) 252,567 (653,343) Use of tax credits in non-recurring installment Payments - - (3,892) Total income tax (77,958) (209,607) (297,128) Income tax and social contribution Current (95,537) (178,621) (52,139) Deferred 17,579 (30,986) (244,989) Total income (loss) taxes (77,958) (209,607) (297,128)

13. Deposits

13. Deposits	12 Months Ended
	Dec. 31, 2020
Disclosure Of Deposits Abstract
Deposits	13. Deposits 2020 2019 Court deposits 667,565 841,746 Maintenance deposits 1,032,418 830,282 Deposits in guarantee for leases agreements 358,472 296,327 Total 2,058,455 1,968,355 13.1. Court deposits Court deposits and blocks represent guarantees of tax, civil and labor lawsuits, kept in court until the resolution of the disputes to which they are related. Part of the court deposits refers to civil and labor lawsuits arising from succession requests in lawsuits filed against Varig S.A. or also labor lawsuits filed by employees who do not belong to GLA or any related party. Considering that Management does not believe that the Company is legally responsible for such claims and the release of the court deposits has been claimed. As of December 31, 2020, the blocked amounts referring to Varig S.A.'s succession proceedings and third-party proceedings were R$77,564 and R$105,320, respectively (R$115,390 and R$107,510 as of December 31, 2019), the remaining amounts refer to legal proceedings to which the Company is the main party. 13.2. Maintenance deposits The Company makes deposits in U.S. dollars for the maintenance of aircraft and engines, which will be used in future events as established in certain lease agreements. Maintenance deposits do not exempt the Company, as a lessee, from contractual obligations related to the maintenance or the risk associated with operating activities. These deposits can be replaced by bank guarantees or letters of credit (SBLC - stand by letter of credit) according to the conditions established in the aircraft lease. The Company has the right to choose to carry out the maintenance internally or through its suppliers. The Company has two categories of maintenance deposits: · Maintenance Guarantee · Maintenance Reserve 13.3. Deposits in guarantee for leases agreements As required by the lease agreements, the Company makes guarantee deposits (in U.S. dollars) to the leasing companies, which can be fully redeemed at maturity.

14. Investments

14. Investments	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about investment property [abstract]
Investments	14. Investments 14.1. Breakdown of investments The investment information is shown below: 2020 2019 Relevant investment information in Trip Capital stock 1,318 1,318 Interest 60.00% 60.00% Total equity 1,359 2,103 Adjusted equity (a) 815 1,254 Net income for the year (732) 129 Net income for the year attributable to the company’s interest (439) 77 14.2. Changes in investments Trip Balances on December 31, 2018 1,177 Equity method results 77 Balances on December 31, 2019 1,254 Equity method results (439) Balances on December 31, 2020 815

15. Property, plant and equipme

15. Property, plant and equipment	12 Months Ended
	Dec. 31, 2020
Property, plant and equipment [abstract]
Property, plant and equipment	15. Property, plant and equipment Weighted average rate (p.a.) 2019 Additions and contractual amendments Disposals (6) Transfers 2020 Flight equipment Cost Aircraft - ROU (1) (5) 660,256 - (660,256) - - Aircraft - ROU with no purchase option 3,561,980 704,253 (245,524) - 4,020,709 Spare parts and engines – Own (7) (8) 1,764,295 206,253 (5,887) (250) 1,964,411 Spare parts and engines – ROU 109,977 (15,296) (10,352) - 84,329 Aircraft and engine improvements 3,084,023 351,386 (229,024) - 3,206,385 Tools 53,454 2,311 (194) 250 55,821 9,233,985 1,248,907 (1,151,237) - 9,331,655 Depreciation Aircraft - ROU with purchase option (5) (226,433) (2,935) 229,368 - - Aircraft - ROU with no purchase option 16.52% (719,377) (783,678) 82,407 - (1,420,648) Spare parts and engines – Own (7) (8) 7.13% (706,381) (133,806) 3,139 - (837,048) Spare parts and engines – ROU 25.59% (26,745) (30,274) 9,079 - (47,940) Aircraft and engine improvements 44.20% (1,717,552) (780,054) 215,564 - (2,282,042) Tools 10.00% (24,712) (4,148) 163 - (28,697) (3,421,200) (1,734,895) 539,720 - (4,616,375) Total Net - Flight equipment 5,812,785 (485,988) (611,517) - 4,715,280 Property, plant and equipment in use Cost Vehicles 11,681 159 (576) - 11,264 Machinery and equipment 63,091 888 (1,138) - 62,841 Furniture and fixtures 32,983 1,386 (1,579) - 32,790 Computers and peripherals - Own 45,732 2,863 (1,108) - 47,487 Computers and peripherals – ROU 21,992 - - - 21,992 Communication equipment 2,548 8 (323) - 2,233 Security equipment 856 - (801) - 55 Third-party property improvements - CMA (3) 107,637 - - - 107,637 Third-party property improvements 71,174 330 - 4,210 75,714 Third-party properties - ROU 22,354 5,583 (70) - 27,867 Construction in progress 17,906 1,141 - (4,210) 14,837 397,954 12,358 (5,595) - 404,717 Depreciation Vehicles 20.00% (9,291) (595) 314 - (9,572) Machinery and equipment 10.00% (45,437) (4,045) 1,065 - (48,417) Furniture and fixtures 10.00% (19,908) (2,088) 1,513 - (20,483) Computers and peripherals - Own 20.00% (33,190) (3,740) 1,093 - (35,837) Computers and peripherals – ROU 35.26% (7,682) (7,778) - - (15,460) Communication equipment 10.00% (2,081) (95) 305 - (1,871) Security equipment 10.00% (615) (3) 586 - (32) Third-party property improvements - CMA 12.05% (102,675) (4,962) - - (107,637) Third-party property improvements 20.31% (39,039) (10,289) - - (49,328) Third-party properties - ROU 35.57% (7,156) (8,748) 70 - (15,834) (267,074) (42,343) 4,946 - (304,471) Total net - Property, plant and equipment in use 130,880 (29,985) (649) - 100,246 Impairment losses (2) - (41,719) 7,389 - - (34,328) Total 5,901,946 (508,584) (612,166) - 4,781,196 Advances to suppliers (4) - 156,155 96,537 (73,600) - 179,092 Total Property, plant and equipment 6,058,101 (412,047) (685,766) - 4,960,288 (1) ROU - Right of Use (2) Refers to provisions for impairment losses for rotable items (spare parts), classified under “Parts and spare engines", recorded by the Company in order to present its assets according to the actual capacity for the generation of expected future benefits. (3) CMA - Maintenance Center - Confins/MG (4) The write-off refers to PDP return, as mentioned in note 1.3. (5) Write-off resulting from the sale-leaseback transaction, see Note 18.1. (6) The amounts are composed of sales and write-offs. (7) As of December 31, 2020, the balance of spare parts is granted as a guarantee to Secured Notes 2026, according to note 17. (8) As of December 31, 2020, 19 engines of the Company are granted as a guarantee to the Spare Engine Facility and the Loan Facility, according to note 17.

16. Intangible assets

16. Intangible assets	12 Months Ended
	Dec. 31, 2020
Intangible assets and goodwill [abstract]
Intangible assets	16. Intangible assets Weighted average rate (p.a.) 2019 Additions Write-off 2020 Cost Goodwill - 542,302 - - 542,302 Slots - 1,038,900 - - 1,038,900 Software - 579,370 63,993 (135,629) 507,734 Others - 10,000 - - 10,000 Total Cost 2,170,572 63,993 (135,629) 2,098,936 Amortization Software 25.73% (389,730) (91,314) 135,383 (345,661) Others 20.00% (4,167) (2,000) - (6,167) Total Amortization (393,897) (93,314) 135,383 (351,828) Intangible Assets, Net 1,776,675 (29,321) (246) 1,747,108 The balances of goodwill and airport operating rights (slots) were tested for impairment on December 31, 2020, and 2019 through the discounted cash flow for each cash-generating unit, giving rise to the value in use. In order to assess the recoverable value, assets are grouped at the lowest levels for which there are separately identifiable cash flows (Cash-Generating Units – “CGUs”). In order to determine the carrying amount of each cash-generating unit, the Company considers the intangible assets recorded and all necessary tangible assets to conduct the business, given that it will only generate economic benefits by using the combination of both. The Company allocates goodwill to two cash-generating units: GLA and Smiles, and the slots are fully allocated to GLA’s cash-generating unit, as shown below. The results obtained were compared with the carrying amount of each cash-generating unit and, as a result, the Company did not recognize impairment losses on its CGUs. Goodwill Slots GLA Smiles December 31, 2020 Book value 325,381 216,921 1,038,900 Value in use 20,784,520 6,771,424 21,064,362 Discount rate 13.98% 14.72% 12.20% Perpetuity growth rate 3.25% 3.25% 3.25% December 31, 2019 Book value 325,381 216,921 1,038,900 Book value – UGC 3,615,949 161,669 3,615,949 Value in use 26,543,428 6,061,994 21,373,789 Discount rate 12.20% 12.07% 12.85% Perpetuity growth rate 3.55% 3.55% 3.53% The results obtained were compared with the book value of each cash-generating unit and, as a result, the Company did not recognize losses in relation to the impairment of its CGUs. The assumptions adopted in the impairment testing of intangible assets are based on internal projections for a five-year period. For longer periods, the Company uses the perpetuity growth rate. The discounted cash flow that calculated the value in use of the cash-generating units was prepared in accordance with the Company’s business plan and approved by the Company’s Board of Directors. The main assumptions taken into consideration by the Company to determine the value in use of the cash-generating units are: · Capacity and fleet: considers the use, the aircraft capacity used in each flight and the projected size of the fleet in use. · Demand: Market efficiency is the main input to estimate the Company’s demand growth. Management considers market efficiency to be the ratio between its market share and its seat share. This indicator reflects how efficiently the Company uses its share of the market’s total supply based on how much demand for air transportation it absorbs. · Revenue per passenger: considers the average price charged by GLA and the effects of market variables (see the variables used below). · Operating costs related to the business: based on the historical cost and adjusted by indicators, such as inflation, supply, demand and variation of the U.S. dollar. The Company also considered market variables such as GDP (source: Central Bank of Brazil), U.S. dollar (source: Central Bank of Brazil), kerosene barrel (source: Brazilian Agency of Oil - “ANP”) and interest rate (source: Bloomberg).

17. Loans and financing

17. Loans and financing	12 Months Ended
	Dec. 31, 2020
Loans And Financing
Loans and financing	17. Loans and financing The breakdown of and changes in short and long-term loans and financing are as follows: 2019 2020 Maturity Interest Rate p.a. Current Non-current Total Funding Unrealized gain (loss) from ESN Payments Interest incurred Interest paid Exchange rate change Amortization of costs and premium Current Non-current Total In R$: Working capital – Lines of credit (a) 10/2025 6.48% - - - 704,172 - (450,532) 20,261 (17,011) - - 239,615 17,275 256,890 Debentures VII (b) 03/2022 3.41% (3) 289,423 289,302 578,725 - - - 25,936 (23,638) - 6,065 440,918 146,170 587,088 In US$: Term loan B (c) 08/2020 6.50% 1,229,600 - 1,229,600 - - (1,641,390) 65,382 (97,632) 437,942 6,098 - - - Import financing (d) 06/2021 5.63% 663,979 - 663,979 25,974 - (103,238) 41,326 (45,856) 201,474 - 783,659 - 783,659 Secured funding (e) 12/2021 9.50% - - - 1,367,825 - (833,171) 36,749 (36,366) (50,924) - 484,113 - 484,113 Senior notes 2022 (f) 01/2022 8.88% 12,102 313,267 325,369 - - (405,878) 7,052 (20,695) 92,730 1,422 - - - Financing with Ex-lm Bank collateral (g) 12/2022 0.92% 180,812 76,395 257,207 124,074 - (216,829) 5,488 (4,469) 71,877 7,396 194,786 49,958 244,744 ESN (1) 07/2024 3.75% 29,443 1,753,526 1,782,969 - (374,994) - 178,414 (75,486) 424,327 (416) 37,960 1,896,854 1,934,814 Spare engine facility (i) 09/2024 2.56% 17,551 201,084 218,635 - - (63,482) 8,957 (9,282) 64,670 282 22,771 197,009 219,780 Senior notes 2025 (j) 01/2025 7.00% 75,587 2,548,472 2,624,059 37,322 - - 235,588 (215,506) 751,423 5,951 98,521 3,340,316 3,438,837 Secured notes 2026 (k) 06/2026 8.00% - - - 952,509 - - 1,828 - 20 1,293 1,848 953,802 955,650 Loan facility (l) 03/2028 4.73% 31,727 150,821 182,548 59,949 - (33,719) 11,974 (8,969) 53,681 237 32,566 233,135 265,701 Perpetual bonds (2) - 8.75% 12,815 533,935 546,750 99,135 - - 60,035 (60,117) 159,887 - 16,522 789,168 805,690 Total 2,543,039 5,866,802 8,409,841 3,370,960 (374,994) (3,748,239) 698,990 (615,027) 2,207,107 28,328 2,353,279 7,623,687 9,976,966 (1) Exchangeable Senior Notes see Note 33.2. (2) It includes the elimination of related parties, considering securities of this issue, carried out by Gol Finance, held by GLA on December 31, 2020, totaling R$10,609 (R$86,393 on December 31, 2019). (3) During the fiscal year ended on December 31, 2020, after Split there was division into three series: Series 1 with a CDI rate of 120%; Series 2 with CDI rate + 5.40% and Series 3 with CDI rate + 3.50%. (a) Issuance of transactions with the purpose maintaining and managing the Company's working capital. (b) Issuance of 88,750 debentures by GLA on October 22, 2018 for early settlement of the Debentures VI. (c) Term Loan raised by Gol Finance on August 31, 2016 for aircraft purchases and bank repayment of loans, with backstop guarantee from Delta Airlines. (d) Credit lines with private banks used to finance the import of spare parts and aeronautical equipment. The interest rates negotiated are Libor 3m + 4.40% p.a. and Libor 1m + 3.25% p.a. (e) Backed financing raised by the subsidiary Gol Finance on August 31, 2020, with Delta Airlines, backed by Smiles’ shares and other assets, maturing on December 30, 2021. (f) Issuance of Senior Notes 2022 by the subsidiary Gol Finance on September 24, 2014, to renegotiate the Company's indebtedness. (g) Financing to perform engine maintenance services with Ex-Im Bank guarantee with an average rate of 0.81% p.a., in four transactions, with three transaction maturing in 2021 and one transaction maturing in 2022. (h) Issuance of Exchangeable Senior Notes (“ESN”) by the subsidiary Gol Finance in March, April and July 2019, totaling US$425 million maturing in 2024. (i) Loan backed by the Company's own engines, maturing in 2024. (j) Issuance of Senior Notes 2025 by the subsidiary Gol Finance on December 11, 2017 and February 2, 2018, to repurchase Senior Notes and general purposes of the Company. (k) Issuance of Secured Notes 2026 by the subsidiary Gol Finance on December 23, 2020 totaling US$200 million, maturing in 2026. (l) Loans with a guarantee of 5 engines in total, made on June 28, 2018. The contracted rates vary between Libor 6m + 2.35% p.a. until Libor 6m + 4.25% p.a. (m) Issuance of Perpetual Notes by Gol Finance on April 5, 2006 to finance aircraft purchase. Total loans and financing of the consolidated included fundraising and premiums costs of R$189,195, on December 31, 2020 (R$143,119 on December 31, 2019), which are amortized over the term of the related debt. The total also includes amortizable premium and fair value of the derivative financial instrument, both referring to ESN, totaling R$42,226 and R$346,030, respectively, on December 31, 2020 (R$54,479 and R$626,557 on December 31, 2019). 17.1. New loans and financing contracted during the year ended on December 31, 2020 17.1.1. Working capital – Lines of credit During the fiscal year ended December 31, 2020, the Company, through its subsidiary GLA, raised funds and renegotiated the due dates of this type of agreement, placing promissory notes as collateral for the transactions. These transactions have as purpose maintaining and managing the company's working capital. Information on such financing is presented below: Date - Amount Interest Date - Transaction (R$ thousand) Rate (p.a.) Maturity New Funding April 20, 2020 21,195 8.52% July 20, 2020 April 20, 2020 72,000 10.03% July 20, 2020 April 20, 2020 94,830 8.99% August 18, 2020 May 8, 2020 147,871 CDI + 6.9% August 7, 2020 May 11, 2020 10,013 8.60% August 10, 2020 May 13, 2020 24,000 CDI + 8% March 12, 2021 May 15, 2020 254,468 CDI + 2.5% November 9, 2020 October 7, 2020 59,795 8.58% December 7, 2020 October 23, 2020 10,000 6.90% October 23, 2025 November 26, 2020 10,000 10.69% May 19, 2023 Total 704,172 Renegotiations April 20, 2020 94,830 8.99% August 18, 2020 May 8, 2020 105,903 CDI + 6.9% August 7, 2020 June 18, 2020 21,195 8.52% August 20, 2020 July 7, 2020 110,903 CDI + 6.9% August 7, 2020 July 20, 2020 50,000 10.03% November 17, 2020 August 7, 2020 44,361 CDI + 6.9% November 5, 2020 August 10, 2020 10,013 8.60% September 30, 2020 August 18, 2020 94,830 8.99% September 30, 2020 August 31, 2020 114,666 CDI + 2.50% March 15, 2021 September 2, 2020 37,640 10.03% December 1, 2020 September 30, 2020 94,830 8.99% December 15, 2020 September 30, 2020 10,013 8.60% December 15, 2020 December 7, 2020 59,795 8.58% March 5, 2021 December 15, 2020 94,830 8.99% March 15, 2021 December 15, 2020 10,013 8.60% March 15, 2021 Total 953,822 17.1.2. Import financing During the fiscal year ended December 31, 2020, the Company, through its subsidiary GLA, raised funds and renegotiated the due dates of this type of agreement, placing promissory notes as collateral for the transactions. Which are part of a credit line maintained by GLA for engine maintenance, import financing in order to purchase spare parts and aircraft equipment. Information on such financing is presented below: Date - Amount Interest Date - Transaction (US$ thousand) (R$ thousand) Rate (p.a.) Maturity New Funding February 19, 2020 5,920 25,974 4.07% February 13, 2021 Renegotiations January 2, 2020 4,335 18,508 5.79% June 30, 2020 January 14, 2020 4,571 19,516 6.22% May 13, 2020 January 17, 2020 6,455 27,560 5.71% July 15, 2020 January 21, 2020 8,595 36,696 6.22% May 20, 2020 January 24, 2020 4,815 20,558 4.17% January 15, 2021 January 31, 2020 5,925 25,297 5.63% July 29, 2020 February 14, 2020 7,069 31,801 5.59% August 12, 2020 February 21, 2020 6,531 29,381 5.56% August 19, 2020 April 16, 2020 10,400 56,441 4.14% June 16, 2020 April 22, 2020 5,407 29,344 8.60% August 20, 2020 April 22, 2020 7,711 41,848 5.65% October 19, 2020 April 22, 2020 6,053 32,850 5.65% October 19, 2020 April 24, 2020 9,347 50,726 8.52% August 24, 2020 May 13, 2020 4,571 19,516 7.93% September 10, 2020 May 20, 2020 5,148 21,979 7.87% September 17, 2020 May 29, 2020 7,195 39,042 5.12% November 25, 2020 June 8, 2020 9,638 52,778 4.95% November 5, 2020 June 8, 2020 7,823 42,839 4.29% October 6, 2020 June 8, 2020 10,436 57,148 4.95% November 5, 2020 June 8, 2020 6,990 38,277 4.29% October 6, 2020 June 8, 2020 7,045 38,578 4.95% November 5, 2020 June 15, 2020 735 4,025 4.98% December 14, 2020 June 16, 2020 10,400 56,441 4.29% October 14, 2020 June 30, 2020 4,335 18,508 4.92% December 29, 2020 July 15, 2020 6,455 27,560 4.87% January 11, 2021 July 29, 2020 5,925 25,297 4.85% January 25, 2021 August 12, 2020 7,069 31,801 4.32% September 25, 2020 August 14, 2020 3,396 18,581 3.84% January 8, 2021 August 19, 2020 6,531 29,381 4.30% October 2, 2020 August 20, 2020 5,407 29,344 7.75% December 18, 2020 August 24, 2020 9,347 50,726 7.76% December 22, 2020 September 10, 2020 4,571 19,516 7.75% January 8, 2021 September 17, 2020 5,148 21,979 7.75% January 15, 2021 September 25, 2020 7,069 31,801 4.35% December 15, 2020 October 2, 2020 6,531 29,381 4.36% December 15, 2020 October 6, 2020 7,823 42,839 2.93% January 4, 2021 October 6, 2020 6,990 38,277 2.93% January 4, 2021 October 14, 2020 10,400 56,441 2.92% January 9, 2021 October 19, 2020 7,711 41,848 4.74% December 15, 2020 October 19, 2020 6,053 32,850 4.74% December 15, 2020 November 5, 2020 9,638 52,778 2.92% February 3, 2021 November 5, 2020 10,436 57,148 2.92% February 3, 2021 November 5, 2020 7,045 38,578 2.92% February 3, 2021 November 12, 2020 6,668 35,554 2.91% February 10, 2021 November 25, 2020 7,195 39,042 4.42% December 15, 2020 December 14, 2020 735 4,025 4.76% March 15, 2021 December 15, 2020 6,531 29,381 4.54% March 15, 2021 December 15, 2020 7,711 41,848 4.54% March 15, 2021 December 15, 2020 6,053 32,850 4.54% March 15, 2021 December 15, 2020 7,195 39,042 4.54% March 15, 2021 December 15, 2020 7,069 31,801 4.54% March 15, 2021 December 18, 2020 5,407 29,344 7.76% June 16, 2021 December 22, 2020 9,347 50,726 7.76% June 21, 2021 December 29, 2020 4,335 18,508 4.78% March 29, 2021 Total 363,321 1,837,904 17.1.3. Secured funding In August 2020, the Company obtained a bilateral financing from Delta Airlines backed by Smiles shares and other assets totaling US$250 million, corresponding to R$1,367,825 on the funding date. Date - Principal Interest Date - Transaction (US$ thousand) (R$ thousand) Rate (p.a.) Maturity August 31, 2020 250,000 1,367,825 9.50% December 30, 2021 The Company has already amortized US$157 million, corresponding to R$833,171 of the principal raised. On December 31, 2020, the amount due, including principal and interest, is US$93,157, R$484,113 considering the closing price of the U.S. dollar on the date. 17.1.4. Financing with Ex-lm Bank collateral In June 2020, the Company, through its subsidiary GLA, made the following fundraising with restricted cash (Note 7) assigned as guarantee: Date - Principal Costs Interest Date - Transaction (US$ thousand) (R$ thousand) (US$ thousand) (R$ thousand) Rate (p.a.) Maturity June 19, 2020 25,000 129,263 1,003 5,189 Libor 6M + 0.6% December 23, 2022 17.1.5. Secured Notes 2026 In December 2020, the Company issued Secured Senior Notes maturing in June 2026 and backed by fiduciary sales of certain assets: (i) substantially all the Company's intellectual property, including patents, trademarks, brand names and domains; and (ii) GLA aircraft’s spare parts. Date - Principal Costs Interest Date - Transaction (US$ thousand) (R$ thousand) (US$ thousand) (R$ thousand) Rate (p.a.) Maturity December 23, 2020 200,000 1,039,340 16,750 86,831 8.00% p.a. June 30, 2026 17.1.6. Loan facility In March 2020, the Company, through its subsidiary GLA, obtained funding with guarantee of the Company’s own engines. Information on such financing is presented below: Date - Principal Costs Interest Date - Transaction (US$ thousand) (R$ thousand) (US$ thousand) (R$ thousand) Rate (p.a.) Maturity March 20, 2020 12,000 60,847 177 898 Libor 1M + 3.33% March 20, 2028 17.2. Loans and financing – Non-current On December 31, 2020, the maturities of loans and financing recorded in non-current liabilities were as follows: 2022 2023 2024 2025 2025 onwards Without maturity date Total In R$: Working capital – Lines of credit 7,543 4,752 2,500 2,480 - - 17,275 Debentures VII 146,170 - - - - - 146,170 In US$: Financing with Ex-lm Bank collateral 49,958 - - - - - 49,958 ESN - - 1,896,854 - - - 1,896,854 Spare engine facility 23,075 23,075 150,859 - - - 197,009 Senior notes 2025 - - - 3,340,316 - - 3,340,316 Secured notes 2026 - - - - 953,802 - 953,802 Loan facility 30,936 31,961 33,039 34,197 103,002 - 233,135 Perpetual bonds - - - - - 789,168 789,168 Total 257,682 59,788 2,083,252 3,376,993 1,056,804 789,168 7,623,687 The fair value of loans and financing as of December 31, 2020, is as follows: Book value (*) Fair value Debentures 587,088 591,666 Secured funding 484,113 484,113 ESN 1,934,814 1,948,441 Perpetual bonds, Senior notes and Secured notes 5,200,177 4,903,902 Other loans and financing 1,770,774 1,770,774 Total 9,976,966 9,698,896 (*) Net Total of Funding Costs. 17.3. Covenants The Company has covenants in guaranteed financing and in Debentures VII. Within the scope of guaranteed financing, the Company has the observance of complying with specific guarantee conditions in the bilateral contract with Delta Airlines. On December 31, 2020, the Company had Smiles shares and other assets placed in guarantee by GLAI regarding this agreement, which meet the covenants. In Debentures VII, the obligation to measure such indicators is semiannual, being that: On March 31, 2020, the Debenture Holders’ Meeting was held, where it was decided to suspend the effects of automatic early maturity, given the failure to pay the unit face value of the debentures referring to the installment due on March 28, 2020. At that Meeting, it was decided to extend the debentures’ principal amortization liabilities by 10 days. On April 9, 2020, the Debenture Holders’ Meeting decided to postpone the scheduled payments of the debentures totaling R$148 million, originally scheduled to occur on March 28, 2020 and thus postponed to March 28, 2022. On this date, the meeting also granted a waiver regarding the non-compliance with the financial rates and limits set for the fiscal year of 2020, which would be measured on June 30 and December 31, 2020. The current waiver will remain in force in the fiscal year of 2021. On September 25, 2020, the Debenture Holders’ Meeting decided to postpone the scheduled payments of debentures totaling R$148 million, originally scheduled to occur on September 28, 2020 and thus postponed to March 28, 2021.

18. Leases

18. Leases	12 Months Ended
	Dec. 31, 2020
Presentation of leases for lessee [abstract]
Leases	18. Leases On December 31, 2020, the balance of leases payable includes: (i) R$16,252 relating to variable payments, not included in the measurement of liabilities, and short-term leases, which fall under the exemption provided for in IFRS 16; and (ii) R$7,567,940 referring to the present value on this date of future lease payments. On December 31, 2019, all liabilities related to the present value of future lease payments. The breakdown and changes in the present value of future lease payments are shown below: 2019 2020 Weighted average rate (p.a.) Current Non-current Total Additions Write-offs Contractual amendment Payments Deposit in guarantee Interest incurred Interest paid Exchange rate change Current Non-current Total In R$: Leases without purchase option 13.11% 21,781 23,026 44,807 5,189 - 399 (15,044) - 12,164 - - 32,530 14,985 47,515 Total 21,781 23,026 44,807 5,189 - 399 (15,044) - 12,164 - - 32,530 14,985 47,515 In US$: Leases with purchase option 3.72% 128,936 419,894 548,830 - (618,486) - (26,049) - 4,592 (4,530) 95,643 - - - Leases without purchase option 12.03% 1,253,995 4,205,148 5,459,143 449,059 (85,678) 220,849 (1,017,599) (44,736) 801,773 - 1,737,614 1,268,226 6,252,199 7,520,425 Total 1,382,931 4,625,042 6,007,973 449,059 (704,164) 220,849 (1,043,648) (44,736) 806,365 (4,530) 1,833,257 1,268,226 6,252,199 7,520,425 Total Leases 1,404,712 4,648,068 6,052,780 454,248 (704,164) 221,248 (1,058,692) (44,736) 818,529 (4,530) 1,833,257 1,300,756 6,267,184 7,567,940 In the fiscal year ended December 31, 2020, the Company directly recognized in the cost from services, totaling R$33,721 related to short-term leases and variable payments, on a straight-line basis. The future payments of leases liabilities agreements are detailed as follows: Without purchase option With purchase option 2020 2019 2019 2020 - 1,691,357 148,613 2021 2,102,771 1,324,403 148,744 2022 1,982,685 1,125,060 207,654 2023 1,642,264 904,627 72,801 2024 1,260,405 651,245 11,279 Thereafter 3,720,405 1,287,742 5,551 Total minimum lease payments 10,708,530 6,984,434 594,642 Less total interest (3,124,338) (1,480,484) (45,812) Present value of minimum lease payments 7,584,192 5,503,950 548,830 Less current portion (1,317,008) (1,275,776) (128,936) Non-current portion 6,267,184 4,228,174 419,894 During the fiscal year on December 31, 2020, the Company concluded part of the renegotiations of its aircraft and operating engine lease agreements, with no purchase option, which led to contractual changes regarding the postponement of due dates and monthly payments compared to the original terms of the lease agreements. For agreements renegotiated that had their payments postponed until June 2021, the Company chose not to evaluate such changes as modifications to the lease agreements, as foreseen in the practical file of the amendment to IFRS 16 – “Leases” COVID-19 - Related Rent Concessions. For other contracts, the Company recorded the update of these renegotiations, remeasuring the lease liability since the deferral of the installments will occur based on new payment flows, discount rate and exchange rate on the date of the contractual amendment, as provided for in the current regulations. The accumulated effects calculated and updated in the fiscal year of December 31, 2020 were disclosed in note 1.1.5. 18.1. Sale-leaseback transactions During the fiscal year ended on December 31, 2020, the Company recorded a net gain of R$551,942 in the statements of operations from the sale-leaseback transactions of 11 aircraft (R$7,924 on December 31, 2019 from the sale-leaseback transaction of one aircraft on December 31, 2019) recognized recorded in the statement of operations in the group of “Other income (expenses), net”.

19. Suppliers

19. Suppliers	12 Months Ended
	Dec. 31, 2020
Disclosure Of Suppliers Abstract
Suppliers	19. Suppliers 2020 2019 Local currency 1,164,193 833,781 Foreign currency 481,001 462,636 Total 1,645,194 1,296,417 Current 1,612,536 1,286,275 Non-current 32,658 10,142

20. Suppliers - forfeiting

20. Suppliers - forfeiting	12 Months Ended
	Dec. 31, 2020
Suppliers - Forfeiting
Suppliers - forfeiting	20. Suppliers - forfeiting The Company has contracts that allow suppliers to receive their rights in advance from a financial institution and that have been converted into working capital transactions described in note 17. On December 31, 2020, there is no outstanding amount arising from the forfaiting transactions (R$554,467 on December 31, 2019).

21. Taxes payable

21. Taxes payable	12 Months Ended
	Dec. 31, 2020
Taxes Payable
Taxes payable	21. Taxes payable 2020 2019 PIS and COFINS 23,647 39,133 Installment payments - PRT and PERT (*) 41,641 2,117 Withholding income tax on salaries 33,011 54,649 ICMS 472 424 IRPJ and CSLL payable 13 9,496 Other 7,192 10,788 Total 105,976 116,607 Current 73,614 116,523 Non-current 32,362 84 (*) In the fiscal year ended December 31, 2020, the Company made the installment of PIS and COFINS contributions in the ordinary amount totaling R$43,945, for a period of 60 months, having already paid this year the total of R$4,443, including interest.

22. Advance ticket sales

22. Advance ticket sales	12 Months Ended
	Dec. 31, 2020
Advance Ticket Sales
Advance ticket sales	22. Advance ticket sales On December 31, 2020, the balance of advance ticket sales classified in current liabilities was R$2,050,799 (R$1,966,148 on December 31, 2019) and is represented by 6,691,911 tickets sold and not yet used (6,239,179 on December 31, 2019) with an average use of 102 days (59 days on December 31, 2019). Balances of advance ticket sales are shown net of breakage corresponding to R$299,188 on December 31, 2020 (R$415,688 on December 31, 2019). On December 31, 2020, the Company has reimbursements to pay related to non-performed transports in the amount of R$ 253,963, recorded as Other liabilities in current liabilities.

23. Mileage program

23. Mileage program	12 Months Ended
	Dec. 31, 2020
Mileage Program
Mileage program	23. Mileage program 2020 2019 Mileage program 2,145,097 1,755,985 Others 5,817 1,764 Breakage (569,952) (577,075) Total 1,580,962 1,180,674 Current 1,258,502 1,009,023 Non-current 322,460 171,651 Breakage

24. Provisions

24. Provisions	12 Months Ended
	Dec. 31, 2020
Provisions [abstract]
Provisions	24. Provisions Post-employment benefits Aircraft and engine return Legal proceedings (a) Total Balances on December 31, 2019 96,760 869,078 291,218 1,257,056 Recognition (reversal) of provision 10,136 (58,702) 288,803 240,237 Provisions used - (113,805) (187,491) (301,296) Changing of assumptions (24,541) - - (24,541) Plan experience 10,706 - - 10,706 Adjustment to present value 6,488 67,609 - 74,097 Exchange rate change - 266,735 (98) 266,637 Balances on December 31, 2020 99,549 1,030,915 392,432 1,522,896 On December 31, 2020 Current - 169,381 - 169,381 Non-current 99,549 861,534 392,432 1,353,515 Total 99,549 1,030,915 392,432 1,522,896 On December 31, 2019 Current - 203,816 - 203,816 Non-current 96,760 665,262 291,218 1,053,240 Total 96,760 869,078 291,218 1,257,056 (a) The provisions used consider write-offs due to the revaluation of estimates and settled processes. 24.1. Provisions for post-employment benefits The Company offers to its employees health care plans that, due to complying with current laws, generate obligations with post-employment benefits. Due to the significant increase in the indicative rates for federal government bonds linked to inflation (NTN-B), with long maturities used, as determined by the applicable accounting standards, to define the discount rate used to calculate post-employment liabilities, generated a reduction in the obligation. This significant change in the economic circumstance led to update the discount rate hypothesis and, consequently, the obligation and related accounting expense for the remainder of the fiscal year 2020. The amounts referring to the change in the discount rate and loss of experience of the plan were recorded in other comprehensive income (expenses). The securities used to determine the discount rate assumption were those traded on June 22, 2020. In addition to the discount rate, the long-term inflation assumption was also updated consistent with the Central Bank inflation report. No updates were necessary for the other assumptions used in the calculation. The actuarial assumptions applied when measuring the post-employment benefit are presented below: Actuarial assumptions 2020 2019 Weighted average of assumptions to determine the defined benefit obligation Nominal discount rate p.a. 7.88% 7.23% Actual discount rate p.a. 4.23% 3.60% Long-term estimated inflation rate p.a. 3.00% 3.50% HCCTR - Nominal medical inflation rate p.a. 6.35% 6.86% HCCTR - Actual medical inflation rate p.a. 3.25% 3.25% Mortality table AT-2000 with improvement of 10% AT-2000 with improvement of 10% Weighted average of assumptions to determine the cost (revenue) of the defined benefit Nominal discount rate 7.23% 9.93% Actual discount rate p.a. 4.23% 5.70% Long-term estimated inflation rate 3.50% 4.00% HCCTR - Nominal medical inflation rate p.a. 6.86% 7.38% HCCTR - Actual medical inflation rate p.a. 3.25% 3.25% Mortality table AT-2000 with improvement of 10% AT-2000 with improvement of 10% 2020 Current service cost recognized in income (expenses) 10,136 Cost of interests recognized in income (expenses) 6,488 Total 16,624 24.2. Provision for aircraft and engine return Such provision considers the costs that meet the contractual conditions for the return of engines maintained under operating leases, as well as the costs to reconfigure aircraft when returned as described in the return conditions of the lease agreements. The initial recognition is capitalized against property, plant and equipment, under the item "Aircraft and engine improvements". 24.3. Provision for legal proceedings The Company and its subsidiaries are involved in certain legal matters arising from the regular course of their business, which include civil, administrative, tax, social security, and labor lawsuits. The Company classifies the risk of loss in legal proceedings as probable, possible, or remote. The provision recorded in relation to such lawsuits is set by the Company's Management, based on the analysis of its legal counsel, and reasonably reflects the estimated probable losses. If the Company has lawsuits whose values are not known or reasonably estimated, but the likelihood of loss is probable, these will not be recorded, but their nature will be disclosed. The Company's Management believes that the provision for tax, civil and labor risks, recorded in accordance with IAS 37, is sufficient to cover possible losses on administrative and judicial proceedings, as shown below: Probable loss Possible loss 2020 2019 2020 2019 Civil 100,806 78,119 64,181 62,473 Labor 269,297 210,699 238,702 237,253 Tax 22,329 2,400 574,356 586,812 Total 392,432 291,218 877,239 886,538 Provisions are reviewed based on the evolution of lawsuits and the history of losses through the best current estimate for civil and labor claims. The civil lawsuits are primarily related to compensation claims generally related to flight delays and cancellations, baggage loss and damage. The labor claims mainly consist of matters related to overtime, hazard pay, risk premium and wage differences. The tax lawsuits presented below were assessed by Management and legal counsel as relevant and with possible risk on December 31, 2020: · GLA is discussing the non-incidence of the additional 1% COFINS rate on the imports of aircraft and parts, amounting R$94,790 (R$82,301 as of December 31, 2019). The classification as a possible risk arises from the fact that there was no express revocation of the tax relief (zero rate) granted to regular air transportation companies. · Tax on Services of Any Nature (ISS), amounting to R$25,655 (R$24,809 as of December 31, 2019) arising from Tax Notices issued by the City of São Paulo against the Company, from January 2007 to December 2010, referring to a possible incidence of ISS on agreements signed with partners. The classification as possible risk arises from the fact that the matters under discussion are interpretative and involve discussions on factual and probative matters. In addition, there is no final positioning of the Superior Courts. · Customs fine totaling R$66,091 (R$64,923 on December 31, 2019) related to the Infraction Notices drawn up against the Company for an alleged non-compliance with customs rules related to temporary aircraft importation processes. The classification as possible risk arises from the fact that there is no final position of the Superior Courts on the matter. · Goodwill BSSF Air Holdings (“BSSF”), in the amount of R$65,611 (R$110,741 on December 31, 2019) arising from the Infraction Notice filed due to the deductibility of goodwill allocated as future profitability. The classification of possible risk results from the fact that there is no final positioning from the Superior Courts. · Goodwill GLA (arising from the acquisition of the former VRG) totaling R$88,631 (R$86,998 on December 31, 2019) arising from the Infraction Notice filed due to the deductibility of goodwill allocated as future profitability. The classification of possible risk results from the fact that there is no final positioning from the Superior Courts. · In May 2018, the subsidiary Smiles received an Infraction Notice related to 2014 and 2015, drawn up due to: (i) the deductibility of the goodwill allocated as future profitability after the process of merging GA Smiles into Smiles S.A. on December 31, 2013 and (ii) the deductibility of the financial expenses of the debentures issued in June 2014. The amount of R$126,410 on December 31, 2020 (R$123,495 as of December 31, 2019) was assessed by Management and legal counsel as a possible risk accepted by the tax authorities, as there are defense arguments in administrative appeal. There are other tax lawsuits assessed by Management and legal counsel as a possible risk, totaling R$108,515 (R$93,545 on December 31, 2019) which, added to the above lawsuits, total R$574,356 on December 31, 2020 (R$586,812 on December 31, 2019).

25. Shareholders' equity

25. Shareholders' equity	12 Months Ended
	Dec. 31, 2020
Equity (deficit)
Shareholders' equity	25. Shareholders’ equity 25.1. Capital stock As of December 31, 2020, the Company’s capital stock was R$3,009,436 and represented by 3,137,706,967 shares, comprised by 2,863,682,710 common shares and 274,024,257 preferred shares. The share capital presented is reduced by the costs to issue shares totaling R$155,618 on December 31, 2020 and 2019. The Company’s shares are held as follows: 2020 2019 Common shares Preferred shares Total Common shares Preferred shares Total Fundo Volluto 100.00% - 22.99% 100.00% - 23.00% Mobi FIA - 37.57% 28.93% - 37.59% 28.94% AirFrance - KLM - 1.55% 1.19% - 1.55% 1.19% Others - 1.91% 1.47% - 2.23% 1.73% Market - 58.97% 45.41% - 58.63% 45.14% Total 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% The authorized share capital on December 31, 2020 is R$6 billion. Within the authorized limit, the Company can, once approved by the Board of Directors, increase its capital regardless of any amendment to its by-laws, by issuing shares, without necessarily maintaining the proportion between the different types of shares. Under the law terms, in case of capital increase within the authorized limit, the Board of Directors will define the issuance conditions, including pricing and payment terms. 25.2. Treasury shares On December 31, 2020, the Company had 1,824,034 treasury shares, totaling R$62,215 (3,006,390 shares totaling R$102,543 on December 31, 2019). On December 31, 2020, the closing market price for treasury shares was R$24.94 (R$36.80 on December 31, 2019).

26. Earnings (loss) per share

26. Earnings (loss) per share	12 Months Ended
	Dec. 31, 2020
Earnings per share [abstract]
Earnings (loss) per share	26. Earnings (loss) per share Although there are differences between common and preferred shares in terms of voting rights and preference in case of liquidation, the Company’s preferred shares do not grant the right to receive fixed dividends. Preferred shares have the economic power and the right to receive dividends 35 times greater than common shares. Accordingly, the Company considers that the economic power of preferred shares is greater than that of common shares. Therefore, the income (expenses) for the fiscal year attributed to the controlling shareholders is allocated proportionally in relation to the total economic participation of the amount of common and preferred shares. Basic earnings per share are calculated by dividing the net income for the fiscal year attributed to the Company’s controlling shareholders by the weighted average number of all classes of shares outstanding during the year. Diluted earnings (loss) per share are calculated by adjusting the weighted average number of shares outstanding by instruments potentially convertible into shares. On December 31, 2019 and on December 31, 2020, the Company has only one category of potentially dilutive shares (stock option), as described in note 27. Due to the losses ascertained in the fiscal years ended on December 31, 2020 and December 31, 2019, these instruments issued by the parent company have no dilutive effect and therefore were not included in the total quantity of outstanding shares to calculate diluted losses per share. The Company's earnings (loss) per share was determined as follows: 2020 2019 2018 Common shares Preferred shares Total Common shares Preferred shares Total Common shares Preferred shares Total Numerator Net loss for the fiscal year attributed to controlling shareholders (1,377,078) (4,611,050) (5,988,128) (27,269) (90,004) (117,273) (254,828) (830,565) (1,085,393) Denominator Weighted average number of outstanding shares (in thousands) 2,863,683 273,967 2,863,683 270,053 2,863,683 266,676 Effect of dilution from stock options - - - - - - Adjusted weighted average number of outstanding shares and diluted presumed conversions (in thousands) 2,863,683 273,967 2,863,683 270,053 2,863,683 266,676 In Brazilian Real (R$) Basic loss per share (0.481) (16.831) (0.010) (0.333) (0.089) (3.115) Diluted loss per share (0.481) (16.831) (0.010) (0.333) (0.089) (3.115)

27. Share-based payments

27. Share-based payments	12 Months Ended
	Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Share-based payments	27. Share-based payments The Company has two additional compensation plans for the members of its Management: the Stock Option Plan (“Stock Option Plan”) and the Restricted Stock Plan, both with the purpose to stimulate and promote the alignment of the purposes of the Company, the members of Management and the employees, and mitigate the risks generating value for the Company due to the loss of its executives, strengthening their commitment and productivity in long-term. 27.1. Stock Option Plan - GOL The beneficiaries of the Company’s stock option plan are allowed to purchase shares at the price agreed on the grant date after three or four years from the grant date, provided that they maintain their employment relationship up to the end of this period. The stock options vesting in three years become vested at 20% as from the first year, an additional 30% as from the second year, and the remaining 50% as from the third year. For stock option plans exercisable in 4 years, beneficiaries may exercise 20% in the first year, 20% in the second year, 30% in the third year and 30% in the fourth year. All stock options may also be exercised within 10 years after the grant date. For stock options granted, the expected volatility of the options is based on the historical volatility of 252 working days of the Company’s shares traded on the B3. Grant year Grant date Total options granted Number of options outstanding Exercise price of the option (in Reais) Fair value at grant date (in Reais) Estimated volatility of share price Expected dividend yield Risk-free return rate Average remaining maturity (in years) 2012 October 19, 2012 778,912 227,183 12.81 5.32 (a) 52.25% 2.26% 9.00% 1.7 2013 May 13, 2013 802,296 220,413 12.76 6.54 (b) 46.91% 2.00% 7.50% 2.3 2014 August 12, 2014 653,130 197,661 11.31 7.98 (c) 52.66% 3.27% 11.00% 3.5 2015 August 11, 2015 1,930,844 601,793 9.35 3.37 (d) 55.57% 5.06% 13.25% 4.5 2016 June 30, 2016 5,742,732 3,121,220 2.62 1.24 (e) 98.20% 6.59% 14.25% 5.4 2017 August 8, 2017 947,767 548,604 8.44 7.91 (f) 80.62% 1.17% 11.25% 6.6 2018 May 24, 2018 718,764 450,695 20.18 12.68 (g) 55.58% 0.60% 6.50% 7.4 2019 December 11, 2019 1,749,223 1,506,606 25.40 12.10 (h) 61.98% 3.17% 9.00% 8.8 2020 July 30, 2020 760,986 655,437 20.57 14.44(i) 71.37% 0.92% 6.24% 9.6 Total December 31, 2020 14,084,654 7,529,612 11.59 (a) The fair value is calculated by the average value from R$6.04, R$5.35 and R$4.56 for the respective vesting periods (2012, 2013 and 2014). (b) The fair value is calculated by the average value from R$7.34, R$6.58 and R$5.71 for the respective vesting periods (2013, 2014 and 2015). (c) The fair value is calculated by the average value from R$8.20, R$7.89 and R$7.85 for the respective vesting periods (2014, 2015 and 2016). (d) The fair value is calculated by the average value from R$3.61, R$3.30 and R$3.19 for the respective vesting periods (2015, 2016 and 2017). (e) On July 27, 2016, an additional grant of 900,000 shares referring to the 2016 plan was approved. The fair value was calculated by the average value from R$1.29, R$1.21 and R$1.22 for the respective vesting periods (2017, 2018 and 2019). (f) The fair value is calculated by the average value from R$8.12, R$7.88 and R$7.72 for the respective vesting periods (2017, 2018 and 2019). (g) The fair value is calculated by the average value from R$13.26, R$12.67 and R$12.11 for the respective vesting periods (2018, 2019 and 2020). (h) The fair value is calculated by the average value from R$12.90, R$12.32 and R$11.65 for the respective vesting periods (2019, 2020 and 2021). The fair value is calculated by the average value from R$15.39, R$14.89, R$14.31 and R$13.64 for the respective vesting periods (2020, 2021, 2022 and 2023). The price of the Company's share traded on B3 on December 31, 2020 was R$24.94 (R$36.80 on December 31, 2019). The movement in the stock options outstanding for the fiscal year ended December 31, 2020 is as follows: Number of stock options Weighted average exercise price Outstanding options on December 31, 2019 7,660,855 7.11 Options granted (*) 655,437 20.57 Options exercised (452,899) 4.09 Options canceled and adjustments in estimated prescribed rights (333,781) 22.06 Outstanding options on December 31, 2020 7,529,612 11.59 Number of options exercisable on: December 31, 2019 5,939,631 8.42 December 31, 2020 5,752,726 10.32 (*) Plan granted on July 30, 2020. The expense recognized in income (expenses) for the fiscal year corresponding to the stock option plans for the fiscal year ended December 31, 2020 was R$12,063 (R$40,735 for the fiscal year ended December 31, 2019). 27.2. Restricted Stock Plan - GOL The Company’s Restricted Stock Plan was approved at the Extraordinary Shareholders’ Meeting of October 19, 2012, and the first grants were approved at the Board of Directors’ Meeting of November 13, 2012. Grant year Approval date Total shares granted Total vested shares Average price at grant date 2016 June 30, 2016 4,007,081 - 2.62 2017 August 8, 2017 1,538,213 - 8.44 2018 May 24, 2018 773,463 513,314 20.18 2020 July 30, 2020 801,311 690,169 20.57 Total December 31, 2020 7,120,068 1,203,483 The movement in the restricted shares for the fiscal year ended December 31, 2020 is as follows: Total Restricted Shares Restricted shares outstanding on December 31, 2019 1,533,996 Restricted shares granted 801,311 Shares transferred (*) (1,182,356) Restricted shares cancelled and adjustments in estimated expired rights 50,532 Restricted Shares Outstanding on December 31, 2020 1,203,483 (*) During the fiscal year ended on December 31, 2020, the Company transferred 1,182,356 shares via equity instruments (treasury shares). The expense recognized in income (expenses) for the fiscal year corresponding to the stock option plans for the fiscal year ended December 31, 2020 was R$8,976 (R$5,315 for the fiscal year ended December 31, 2019). 27.3. Stock option plan – Smiles Fidelidade The beneficiaries of the Company’s stock option plan are allowed to purchase shares at the price agreed on the grant date after three years from the grant date, provided that they maintain their employment relationship up to the end of this period. The stock options vest 20% as from the first year, an additional 30% as from the second year, and the remaining 50% as from the third year. All stock options may also be exercised within 10 years after the grant date. For stock options granted, the expected volatility of the options is based on the historical volatility of 252 working days of the Company’s shares traded on the B3. Grant year Grant date Total options granted Number of options outstanding Exercise price of the option (in Reais) Average fair value at grant date Estimated volatility of share price Expected dividend yield Risk-free return rate Average remaining maturity (in years) 2013 August 8, 2013 1,058,043 - 21.70 4.25 (a) 36.35% 6.96% 7.40% 3.5 2014 February 4, 2014 1,150,000 - 31.28 4.90 (b) 33.25% 10.67% 9.90% 4.0 2018 July 31, 2018 1,300,000 975,000 48.42 8.93 (c) 41.28% 9.90% 6.39% 8.6 Total December 31, 2020 3,508,043 975,000 48.42 (a) Average fair value in Brazilian Reais calculated for the 2013 Stock Options was R$4.84 and R$4.20 for the vesting periods in 2013 and 2014, and R$3.73 for the vesting periods in 2015 and 2016. (b) Average fair value In Brazilian Reais calculated for the 2014 Stock Options was R$4.35, R$4.63, R$4.90, R$5.15 and R$5.37 for the respective vesting periods from 2014 to 2018. (c) Average fair value In Brazilian Reais calculated for the 2018 Stock Options was R$8.17, R$8.63, R$9.14 and R$9.77 for the respective vesting periods of 2019, 2020, 2021 and 2022. The share price of the subsidiary Smiles traded at B3 on December 31, 2020 was R$23.45 (R$39.27 on December 31, 2019). The trend in the stock options outstanding for the fiscal year ended December 31, 2020. During the fiscal year ended on December 31, 2020, the Company recognized R$2,390 in shareholders’ equity regarding the share-based compensation with a corresponding outflow in the statement of operations as personnel expenses (R$3,131 for the fiscal year ended on December 31, 2019). Additionally, referenced in the Company’s shares, executives and employees are granted a complementary cash-settled bonus, as a way of strengthening their commitment and productivity with the incomes (expenses). On December 31, 2020, the balance of this obligation totaled R$1,881 (R$6,079 on December 31, 2019) recorded under “Salaries, wages and benefits”, referenced to 119,784 equivalent Company’s shares (R$120,586 during the period ended on December 31, 2019). The same amount was recorded under “Salaries, wages and benefits” in the statement of operations related to these bonuses.

28. Transactions with related p

28. Transactions with related parties	12 Months Ended
	Dec. 31, 2020
Disclosure of transactions between related parties [abstract]
Transactions with related parties	28. Transactions with related parties 28.1. Transportation and consulting services In the course of its operations, the Company, by itself and through its subsidiaries, entered into agreements with the companies listed below, part of the same economic group as the Company: · Expresso Caxiense S.A.: · Viação Piracicabana Ltda.: In the year ended December 31, 2020, GLA recognized total expenses related to these services of R$5,779 (R$10,560 in the year ended December 31, 2019). On the same date, the balance payable to related companies, under “suppliers”, was of R$3,344 (R$1,822 on December 31, 2019), and refers mainly to transportation services with Viação Piracicabana Ltda. 28.2. Contracts of UATP (“Universal Air Transportation Plan”) to grant credit limit The subsidiary GLA entered into UATP account opening agreements with the related parties indicated below: Aller Participações S.A.; BR Mobilidade Baixada Santista S.A. SPE; Breda Transportes e Serviços S.A.; Comporte Participações S.A.; Empresa Cruz de Transportes Ltda.; Empresa de Ônibus Pássaro Marrom S.A.; Empresa Princesa do Norte S.A.; Expresso Itamarati S.A.; Expresso Maringá do Vale S.A.; Expresso União Ltda.; Glarus Serviços Tecnologia e Participações S.A.; Limmat Participações S.A.; Quality Bus Comércio de Veículos S.A.; Super Quadra Empreendimentos Imobiliários S.A.; Thurgau Participações S.A.; Transporte Coletivo Cidade Canção Ltda.; Turb Transporte Urbano S.A.; Vaud Participações S.A.; and Viação Piracicabana Ltda.; all with no expiration date, whose purpose is to issue credits to purchase airline tickets issued by the Company. The UATP account (virtual card) is accepted as a payment means on the purchase of airline tickets and related services, seeking to simplify billing and make feasible payment between the participating companies. The companies indicated above are owned by the individuals who control FIP Volutto and Mobi FIA, the main shareholders of the Company. 28.3. Commercial partnership and maintenance agreement On February 19, 2014, the Company signed an exclusive strategic partnership agreement for business cooperation with AirFrance-KLM. On January 1, 2017, the Company signed an extension of the scope for the inclusion of maintenance services. During the fiscal year ended on December 31, 2020, expenses with component maintenance incurred at the AirFrance-KLM workshop were R$171,290 (R$284,691 in the year ended December 31, 2019). On December 31, 2020, the Company has R$72,519 in the “Suppliers” account under current liabilities (R$142,241 on December 31, 2019). 28.4. Compensation agreement for the provision of guarantee On October 27, 2020, the Company, through its subsidiary Gol Finance, issued a debt (guaranteed financing) totaling US$250 million, for which it holds the guarantee of compliance with the obligations granted by Mobi FIA, which pledged US$20 million of preferred shares issued by GOL Linhas Aéreas Inteligentes S.A., through the execution of the Shares, Assets and Credit Rights Pledge Agreement and in consideration will receive remuneration from the Company, according to the terms agreed in the contract. For additional information, see Note 17. 28.5. Compensation of key management personnel 2020 2019 2018 Salaries, wages and benefits (*) 35,147 69,609 75,979 Related taxes and charges 13,454 15,813 11,062 Share-based compensation 15,509 8,880 10,234 Total 64,110 94,302 97,275 (*) Includes payment for members of Management, audit committee, and fiscal council.

29. Revenue

29. Revenue	12 Months Ended
	Dec. 31, 2020
Net revenue
Revenue	29. Revenue 2020 2019 2018 Passenger transportation (*) 5,958,848 13,461,470 11,148,292 Cargo transportation 316,318 411,054 400,959 Mileage program 341,197 446,871 446,448 Other revenue 47,053 113,253 95,681 Gross revenue 6,663,416 14,432,648 12,091,380 Related tax (291,599) (567,944) (680,026) Net revenue 6,371,817 13,864,704 11,411,354 (*) Of the total amount, the total of R$252,730 for the fiscal year ended on December 31, 2020, is made up of the revenue from non-attendance of passengers, rescheduling, ticket cancellation (R$583,242 and R$479,136 2018, respectively Revenue by geographical location is as follows: 2020 % 2019 % 2018 % Domestic 5,642,471 88.6 11,965,181 86.3 9,729,498 85.3 International 729,346 11.4 1,899,523 13.7 1,681,856 14.7 Net revenue 6,371,817 100.0 13,864,704 100.0 11,411,354 100.0

30. Financial results

30. Financial results	12 Months Ended
	Dec. 31, 2020
Income, expense, gains or losses of financial instruments [abstract]
Financial results	30. Financial results 2020 2019 2018 Financial income Gain on derivatives 59,669 84,862 17,838 Gains from financial investments 182,966 225,535 161,223 Inflation indexation 28,043 42,967 78,169 (-) Taxes on financial income (a) (38,553) (26,818) (20,372) Unrealized gains - conversion right - ESN 374,994 16,148 - Interest income - 7,451 - Other 129,850 39,418 22,870 Total financial income 736,969 389,563 259,728 Financial expenses Loss with derivatives (428,060) (86,990) (51,674) Derivative losses - capped call (74,728) (23,229) - Unrealized loss - conversion right (836,596) (778,557) (710,787) Bank charges and expenses (119,641) (73,171) (75,673) Exchange offer costs - - (53,952) Losses from financial investments (65,403) (111,679) (33,999) Interest on leases (818,529) (488,278) - Other (203,235) (186,361) (135,004) Total financial expenses (2,546,192) (1,748,265) (1,061,089) Foreign exchange rate change, net (3,056,226) (385,092) (1,081,197) Total (4,865,449) (1,743,794) (1,882,558) (a) Relative to taxes on Financial Revenues (PIS and COFINS), according to Decree 8,426 of April 1, 2015.

31. Segments

31. Segments	12 Months Ended
	Dec. 31, 2020
Disclosure of operating segments [abstract]
Segments	31. Segments The information below presents the summarized financial position of the reportable operating segments on December 31, 2020 and December 31, 2019: 31.1. Assets and liabilities of the operating segments 2020 Flight transportation Smiles loyalty program Total reportable segments Eliminations Total Assets Current 2,059,655 2,453,838 4,513,493 (1,268,142) 3,245,351 Non-current 10,040,986 908,246 10,949,232 (1,380,447) 9,568,785 Total assets 12,100,641 3,362,084 15,462,725 (2,648,589) 12,814,136 Liabilities Current 9,975,367 1,502,179 11,477,546 (1,079,330) 10,398,216 Non-current 16,532,366 509,577 17,041,943 (858,964) 16,182,979 Total equity (deficit) (14,407,092) 1,350,328 (13,056,764) (710,295) (13,767,059) Total liabilities and deficit 12,100,641 3,362,084 15,462,725 (2,648,589) 12,814,136 2019 Flight transportation Smiles loyalty program Total reportable segments Eliminations Total Assets Current 3,243,363 2,763,448 6,006,811 (1,079,434) 4,927,377 Non-current 10,888,299 121,135 11,009,434 (638,365) 10,371,069 Total assets 14,131,662 2,884,583 17,016,245 (1,717,799) 15,298,446 Liabilities Current 9,941,112 1,321,534 11,262,646 (900,046) 10,362,600 Non-current 11,867,062 357,714 12,224,776 (183,513) 12,041,263 Total equity (deficit) (7,676,512) 1,205,335 (6,471,177) (634,240) (7,105,417) Total liabilities and deficit 14,131,662 2,884,583 17,016,245 (1,717,799) 15,298,446 31.2. Results of the operating segments 2020 Flight transportation Smiles loyaltyprogram (b) Total reportable segments Eliminations Total consolidated Net revenue Passenger (a) 5,555,546 - 5,555,546 227,777 5,783,323 Cargo and other (a) 340,237 - 340,237 (36,730) 303,507 Mileage program (a) - 572,916 572,916 (287,929) 284,987 Total net revenue 5,895,783 572,916 6,468,699 (96,882) 6,371,817 Operating costs and expenses Salaries, wages and benefits (1,675,183) (90,444) (1,765,627) (1) (1,765,628) Aircraft fuel (2,025,701) - (2,025,701) - (2,025,701) Landing fees (411,065) - (411,065) - (411,065) Aircraft, traffic and mileage servicing (639,903) (183,519) (823,422) 100,178 (723,244) Passenger service expenses (389,998) - (389,998) - (389,998) Sales and marketing (257,533) (57,225) (314,758) (9,427) (324,185) Maintenance, materials and repairs (335,868) - (335,868) - (335,868) Depreciation and amortization (1,841,975) (28,577) (1,870,552) - (1,870,552) Other income (expenses), net 524,882 (2,898) 521,984 1,035 523,019 Total operating costs and expenses (7,052,344) (362,663) (7,415,007) 91,785 (7,323,222) Equity results 99,278 - 99,278 (99,717) (439) Operating result before financial result, net and income tax and social contribution (1,057,283) 210,253 (847,030) (104,814) (951,844) Financial income (expenses) Financial income 719,560 89,503 809,063 (72,094) 736,969 Financial expenses (2,604,993) (13,295) (2,618,288) 72,096 (2,546,192) Total financial income (expenses) (1,885,433) 76,208 (1,809,225) 2 (1,809,223) Income before exchange rate variation, net (2,942,716) 286,461 (2,656,255) (104,812) (2,761,067) Exchange rate variation, net (3,058,275) 2,049 (3,056,226) - (3,056,226) Loss before income tax and social contribution (6,000,991) 288,510 (5,712,481) (104,812) (5,817,293) Income tax and social contribution 12,863 (92,553) (79,690) 1,732 (77,958) Net income for the year (5,988,128) 195,957 (5,792,171) (103,080) (5,895,251) Attributable to equity holders of the parent (5,988,128) 103,080 (5,885,048) (103,080) (5,988,128) Attributable to non-controlling interests of Smiles - 92,877 92,877 - 92,877 2019 Flight transportation Smiles loyalty program (b) Total reportable segments Eliminations Total consolidated Net revenue Passenger (a) 12,592,018 - 12,592,018 485,725 13,077,743 Cargo and other (a) 463,651 - 463,651 (38,563) 425,088 Mileage revenue (a) - 1,051,124 1,051,124 (689,251) 361,873 Total net revenue 13,055,669 1,051,124 14,106,793 (242,089) 13,864,704 Operating costs and expenses Salaries (2,270,009) (91,259) (2,361,268) - (2,361,268) Aircraft fuel (4,047,344) - (4,047,344) - (4,047,344) Landing fees (759,774) - (759,774) - (759,774) Aircraft, traffic and mileage servicing (766,483) (128,590) (895,073) 187,681 (707,392) Passenger service expenses (578,744) - (578,744) - (578,744) Sales and marketing (587,445) (82,947) (670,392) - (670,392) Maintenance, materials and repairs (569,229) - (569,229) - (569,229) Depreciation and amortization (1,701,115) (26,868) (1,727,983) 1 (1,727,982) Other income (expenses),net (354,302) 44,384 (309,918) 1 (309,917) Total operating costs and expenses (11,634,445) (285,280) (11,919,725) 187,683 (11,732,042) Equity results 294,976 (2,530) 292,446 (292,369) 77 Operating result before financial result, net and income tax and social contribution 1,716,200 763,314 2,479,514 (346,775) 2,132,739 Financial income (expenses) Financial income 636,554 125,455 762,009 (372,446) 389,563 Financial expenses (2,116,438) (4,273) (2,120,711) 372,446 (1,748,265) Total financial income (expenses) (1,479,884) 121,182 (1,358,702) - (1,358,702) Income before exchange rate variation, net 236,316 884,496 1,120,812 (346,775) 774,037 Exchange rate variation, net (390,454) 4,669 (385,785) 693 (385,092) Loss before income tax and social contribution (154,138) 889,165 735,027 (346,082) 388,945 Income tax and social contribution 36,865 (271,156) (234,291) 24,684 (209,607) Net income for the year (117,273) 618,009 500,736 (321,398) 179,338 Attributable to equity holders of the parent (117,273) 321,398 204,125 (321,398) (117,273) Attributable to non-controlling interests of Smiles - 296,611 296,611 - 296,611 2018 Flight transportation Smiles loyalty program (b) Total reportable segments Eliminations Total consolidated Net revenue Passenger (a) 10,199,092 - 10,199,092 434,396 10,633,488 Cargo and other (a) 422,432 - 422,432 (12,799) 409,633 Mileage program - 987,444 987,444 (619,211) 368,233 Total net revenue 10,621,524 987,444 11,608,968 (197,614) 11,411,354 Operating costs and expenses Salaries, wages and benefits (1,821,521) (82,331) (1,903,852) - (1,903,852) Aircraft fuel (3,867,673) - (3,867,673) - (3,867,673) Aircraft rente (1,112,837) - (1,112,837) - (1,112,837) Sales and marketing (507,721) (74,256) (581,977) - (581,977) Landing fees (743,362) - (743,362) - (743,362) Aircraft, traffic and mileage servicing (661,260) (107,489) (768,749) 154,981 (613,768) Maintenance, materials and repairs (570,333) - (570,333) - (570,333) Depreciation and amortization (651,158) (17,358) (668,516) - (668,516) Passenger service expenses (474,117) - (474,117) - (474,117) Other income (expenses), net 483,699 35,959 519,658 4,998 524,656 Total operating costs and expenses (9,926,283) (245,475) (10,171,758) 159,979 (10,011,779) Equity pick up method 315,721 - 315,721 (315,334) 387 Income before financial results, net and income tax and social contribution 1,010,962 741,969 1,752,931 (352,969) 1,399,962 Financial income (expenses) Financial income 166,348 220,628 386,976 (127,248) 259,728 Financial expenses (1,185,889) (2,326) (1,188,215) 127,126 (1,061,089) Total financial income (expenses) (1,019,541) 218,302 (801,239) (122) (801,361) Income before the exchange rate variation, net (8,579) 960,271 951,692 (353,091) 598,601 Exchange rate change, net (1,084,543) 3,223 (1,081,320) 123 (1,081,197) Income (loss) before income taxes (1,093,122) 963,494 (129,628) (352,968) (482,596) Income tax and social contribution 7,729 (317,652) (309,923) 12,795 (297,128) Net income (loss) for the year (1,085,393) 645,842 (439,551) (340,173) (779,724) Attributable to equity holders of the parent (1,085,393) 340,173 (745,220) (340,173) (1,085,393) Attributable to non-controlling Interests of Smiles - 305,669 305,669 - 305,669 (a) Eliminations are related to transactions between GLA and Smiles Fidelidade. (b) Amounts include Smiles S.A. and Smiles Fidelidade. In the stand-alone financial statements of the subsidiary Smiles Fidelidade, which represents the segment Smiles loyalty program, and in the information provided to the relevant decision makers, the revenue recognition occurs upon redemption of the miles by the participants. Under the perspective of Smiles Fidelidade, this measurement is appropriate given that this is when the revenue recognition cycle is complete. At this point, Smiles has transferred to its suppliers the obligation to provide services or deliver products to its customers. However, from a consolidated perspective, the revenue recognition cycle related to miles exchanged for flight tickets is only complete when the passengers are effectively transported. Therefore, for purposes of reconciliation with the consolidated assets, liabilities and income and expenses, as well as for purposes of equity method of accounting and for consolidation purposes, the Company performed, in addition to elimination entries, consolidating adjustments to adjust the accounting practices related to Smiles’ revenues. In this case, under consolidated perspective, the mileages that were used to redeem airline tickets are only recognized as revenue when passengers are transported, in accordance with accounting practices and policies adopted by the Company.

32. Commitments

32. Commitments	12 Months Ended
	Dec. 31, 2020
Commitments
Commitments	32. Commitments On December 31, 2020, the Company had 95 firm orders (129 on December 31, 2019) for aircraft acquisitions with Boeing. These aircraft acquisition commitments include estimates for contractual price increases during the construction phase. The approximate amount of firm orders in the current fiscal year considers an estimate of contractual discounts, and corresponds to around R$23,269,198 (R$29,600,947 on December 31, 2019) corresponding to US$4,447,687 on December 31, 2020 (US$7,343,873 on December 31, 2019) and are segregated as follows: 2020 2019 2021 - 3,201,198 2022 - 3,690,205 2023 3,353,702 4,103,490 2024 onwards 19,915,496 18,606,054 Total 23,269,198 29,600,947 Of the total commitments presented above, the Company should disburse the amount of R$8,315,768 (corresponding to US$1,600,202 on December 31, 2020) as advances for aircraft acquisition, according to the financial flow below: 2020 2019 2020 - 1,169,967 2021 184,951 1,152,456 2022 1,287,077 1,300,668 2023 2,657,000 1,366,345 2024 onwards 4,186,740 4,255,621 Total 8,315,768 9,245,057 The Company leases its entire aircraft fleet through a combination of leases without a purchase option. On December 31, 2020, the total fleet consisted of 127 aircraft, among which all were commercial leases with no purchase option.

33. Financial instruments and r

33. Financial instruments and risk management	12 Months Ended
	Dec. 31, 2020
Disclosure of reconciliation of liabilities arising from financing activities [abstract]
Financial instruments and risk management	33. Financial instruments and risk management Operational activities expose the Company and its subsidiaries to market risk, credit risk and liquidity risk. These risks can be mitigated by using exchange swap derivatives, futures and options contracts based on oil, U.S. dollar and interest markets. Financial instruments are managed by the Financial Policy Committee (“CPF”) in line with the Risk Management Policy approved by the Risk Policy Committee (“CPR”) and submitted to the Board of Directors. The CPR establishes guidelines, limits, and monitors the controls, including mathematical models adopted to continuously monitor the exposures and possible financial impacts, in addition to preventing the exploitation of operations of a speculative nature with financial instruments. The Company does not hedge the entire risk exposure; therefore, the company is subject to market variations for a significant part of its assets and liabilities exposed to the above risks. The decisions on the part to be hedged consider the financial risks and costs of the hedging and are set and reviewed at least monthly, in line with CPR’s strategies. The income (expenses) obtained from the operations and the application of controls to manage risks are part of the monitoring carried out by the Committee and have been satisfactory to the proposed goals. The airline industry remains exposed to the risks related to the pandemic’s evolution and new strains of the virus and to possible new restrictions imposed by government authorities to stop the disease, so that the Company's financial results may suffer impacts. Although the pandemic, mainly the prolongation of the pandemic and its uncertainties, is expected to have consequences for the financial income (expenses) of airlines in general, the risks related to the Company must be measured in light of its financial position. 33.1. Accounting classifications of financial instruments The accounting classifications of the Company’s financial instruments on December 31, 2020 and 2019 are as follows: Measured at fair value through profit or loss Amortized cost 2020 2019 2020 2019 Assets Cash and bank deposits 428,812 - - 418,447 Cash equivalents 234,018 5,505 - 1,221,473 Short-term investments 629,335 953,762 - - Restricted cash 544,607 444,306 - - Trade receivables - - 739,699 1,229,530 Derivative assets 128,809 147,469 - - Deposits (a) - - 1,390,890 1,126,609 Other credits and amounts - - 179,160 140,006 Liabilities Loans and financing (b) 346,030 626,557 9,630,936 7,783,284 Leases - - 7,584,192 6,052,780 Suppliers - - 1,645,194 1,296,417 Suppliers - forfeiting - - - 554,467 Derivatives liabilities 5,297 20,350 - - Other liabilities - - 618,754 164,709 (a) Excludes court deposits, as described in Note 13. (b) The amounts on December 31, 2020 and 2019, classified as measured at fair value through profit or loss, are related to the derivative contracted through Exchange Senior Notes. In the fiscal year ended December 31, 2020, there was no change in the classification between categories of the financial instruments. 33.2. Derivative and non-derivative financial instruments The Company's derivative financial instruments were recognized as follows in the balance sheet: Derivatives Non-derivative Fuel Interest rate Foreign curency rate Capped call ESN Revenue hedge Total Fair value changes Rights (obligations) with derivatives on December 31, 2019 (20,350) - 3,500 143,969 (626,557) - (499,438) Gains (losses) recognized in income (expenses) - - 18,210 (74,728) 374,994 - 318,476 Gains (losses) recognized as exchange rate change - - - 18,422 (94,467) - (76,045) Gains (losses) recognized in equity valuation adjustments (744,973) - - - - - (744,973) Settlements (payments received) during the year 799,489 - (20,027) - - - 779,462 Rights (obligations) with derivatives on December 31, 2020 34,166 - 1,683 87,663 (346,030) - (222,518) Derivative assets 39,463 - 1,683 87,663 - - 128,809 Loans and financing - - - - (346,030) - (346,030) Derivatives liabilities (5,297) - - - - - (5,297) Changes in the adjustment of equity valuation Balance on December 31, 2019 (53,243) (311,364) - - - (165,436) (530,043) Fair value adjustments during the year (744,973) - - - - - (744,973) Adjustments of hedge accounting of revenue - - - - - (993,532) (993,532) Net reversal to income (expenses) 318,140 8,158 - - - 25,543 351,841 Derecognition of hedge object 315,286 - - - 290,345 605,631 Balances on December 31, 2020 (164,789) (303,207) - - - (843,080) (1,311,076) Effects on income (expenses) (633,426) (8,158) 18,210 (56,306) 280,527 677,644 278,491 Hedge nature Classification 2020 USD revenue Net revenue (16,086) USD revenue Exchange rate change 693,730 Fuel Aircraft fuel (249,328) Fuel Financial income (expenses) (384,098) Interest rate - lease Financial income (expenses) (8,158) Conversion right - ESN Financial income (expenses) 374,994 Conversion right - ESN Exchange rate change (94,467) Capped call – Financial income (expenses) (74,728) Capped call – ESN Exchange rate change 18,422 Foreign currency rate Exchange rate change 18,210 Total effects on income (expenses) 278,491 The Company may adopt hedge accounting for derivatives contracted to hedge cash flow and that qualify for this classification as per IFRS 9 – “Financial Instruments”. On December 31, 2020, the Company adopts cash flow hedge for the interest rate (mainly the Libor interest rates), and for aeronautical fuel protection and future revenue in U.S. Dollars. As a result of the reduction in the volume of flight and interruption of international operations, the Company discontinued hedge relations of part of the fuel hedge operations designated as cash flow hedges, and hedge accounting transactions used to hedge future revenues in foreign currency (hedged object), as presented in note 1.1. Cash flow hedges are scheduled for realization and, therefore, reclassification to expense according to the following periods: 2021 2022 2023 2024 2025 onwards Fuel 154,973 9,816 - - - Interest Rate 15,878 21,707 26,575 26,412 212,635 Revenue Hedge 118,571 248,225 301,922 174,362 - Total 289,422 279,748 328,497 200,774 212,635 33.3. Market risks Market risk is represented by the risk of fluctuations in the fair value of a financial instrument’s future cash flows due to variations in the market prices. The main market prices with an impact on the Company are: fuel price, exchange rate and interest rate. The sensitivity analysis of financial instruments was prepared with the purpose to estimate the impact on profit (loss) before taxes and shareholders’ equity on: open derivatives position, currency exposure and interest rates on December 31, 2020 for the market risks considered relevant by the Company's management. In the probable scenario, in the Company's assessment, the maintenance of market levels was considered, so that there are no impacts on profit (loss) before taxes and shareholders’ equity. The Company also considered the following scenarios in the risk variable: · 10% deterioration (possible adverse scenario); · 25% deterioration (remote adverse scenario); The estimates presented do not necessarily reflect the amounts to be ascertained in the next financial statements. The use of different methodologies can have a material effect on the estimates presented. 33.3.1. Fuel The aircraft fuel prices fluctuate due to the volatility of the price of crude oil by product price fluctuations. The Company uses different instruments to hedge its exposure to the fuel price. The choice depends on factors such as liquidity in the market, the market price of the components, levels of volatility, availability, and margin deposit. The main instruments are futures, calls, calls spreads, collars and swaps. The Company’s strategy for Fuel Risk Management is based on statistical models. Through the developed model, the Company can (i) measure the economic relationship between the hedging instrument and the hedged object, thus able to assess if the relationship between the price of aviation fuel and the price of foreign fuel behaves as expected; and (ii) adequately define the hedged index, thus able to establish the appropriate volume to be contracted to hedge the number of liters of fuel that will be consumed in a given period. The Company’s models consider the potential factors of inefficiency that may impact on risk management strategies, such as changes in the pricing of aviation fuel by suppliers and the mismatch of the term of the hedging instrument and the hedged object. The Company has protected, through hedge agreements, 65% of its fuel consumption for the fiscal year 2021 and 23% for the fiscal year 2022. The table below shows the sensitivity analysis considering the fluctuation of prices of air fuel priced in U.S. dollars, based on the barrel price on December 31, 2020 at US$48.52: Fuel Barrel price (in USD) Impact (in thousands of Reais) Decline in prices/barrel (-25%) 35.81 (95,280) Decline in prices/barrel (-10%) 43.67 (27,835) Increase in prices/barrel (+10%) 53.49 110,033 Increase in prices/barrel (+25%) 59.68 283,818 33.3.2. Interest rate The Company’s strategy for interest risk management combines fixed and floating interest rates and establishes if it will be necessary to expand or reduce the interest rate exposures. The company manages its exposure by calculating the Basis Point Value (“BPV”) of each agreement and uses volumes that correspond to the amount of BPVs necessary to achieve the goals proposed in the Risk Management to contract derivatives. Through statistical models, the company proves the economic relationship between the hedging instrument and the hedged object, considering potential factors of ineffectiveness, such as the mismatch of the term of the hedging instrument and the hedged object. The Company is mainly exposed to lease transactions indexed to changes in the Libor rate until the aircraft is received. To mitigate such risks, the Company can use derivative financial instruments. On December 31, 2020, the Company and its subsidiaries have open Libor interest derivative agreements On December 31, 2020, the Company held financial investments and loans and financing with different types of fees. Its sensitivity analysis of non-derivative financial instruments examined the impact on annual interest rates only for positions with material amounts on December 31, 2020 that were exposed to fluctuations in interest rates, as the scenarios below show. The amounts show the impacts on Income (Expenses) according to the scenarios adopted below: Short-term investments net of Loans and financing (a) Risk CDI rate drop Libor rate increase Reference rates 1.90% 0.08% Exposure amount (probable scenario) (b) (565,397) 3,201,557 Remote favorable scenario (-25%) 1,179 (622) Possible favorable scenario (-10%) 426 (249) Possible adverse scenario (+10%) (426) 249 Remote adverse scenario (+25%) (1,179) 622 (a) Refers to the sum of the amounts invested and raised in the financial market and indexed to the CDI and Libor rates. (b) Book balances recorded as of December 31, 2020. 33.3.3. Exchange rate Foreign currency risk derives from the possibility of unfavorable fluctuation of foreign currency to which the Company’s liabilities or cash flows are exposed. In the fiscal year ended December 31, 2020, the Company recognized a total gain with foreign exchange hedge transactions in the amount of R$18,210 (R$1,207 in the fiscal year ended December 31, 2019). The Company’s foreign currency exposure is summarized below: 2020 2019 Assets Cash, short-term investments and restricted cash 491,258 1,035,802 Trade receivables 120,167 202,363 Recoverable taxes - 5,312 Deposits 1,390,890 1,126,609 Derivative assets 128,809 147,469 Total Assets 2,131,124 2,517,555 Liabilities Loans and financing (9,132,988) (7,831,116) Leases (7,536,677) (6,007,973) Suppliers (481,001) (462,636) Provisions (1,030,915) - Derivatives liabilities (5,297) (20,350) Total Liabilities (18,186,878) (14,322,075) Exchange rate exposure liabilities (16,055,754) (11,804,517) Commitments not recorded in the statements of financial position Future obligations resulting from firm aircraft orders (23,269,198) (29,600,647) Total (23,269,198) (29,600,647) Total exchange rate exposure R$ (39,324,952) (35,356,555) Total exchange rate exposure - US$ (7,567,293) (8,771,815) Exchange rate (R$/US$) 5.1967 4.0307 The Company is mainly exposed to the exchange rate change of the U.S. dollar. As of December 31, 2020, the Company adopted the closing exchange rate of R$5.1967/US$1.00 as a likely scenario. The table below shows the sensitivity analysis and the effect on income (expenses) of exchange rate fluctuations in the exposure amount of the period as of December 31, 2020: Exchange rate Effect on income (expenses) Net liabilities exposed to the risk of appreciation of the U.S. dollar 5.1967 16,055,553 Dollar depreciation (-25%) 3.8975 4,013,939 Dollar depreciation (-10%) 4.6770 1,605,575 Dollar appreciation (+10%) 5.7164 (1,605,575) Dollar appreciation (+25%) 6.4959 (4,013,939) 33.3.4. Capped call The Company, through Gol Equity Finance, in the context of the pricing of the ESN issued on March 26, April 17 and July 17, 2019, contracted private derivative transactions (Capped call) with part of the note subscribers with the purpose of minimizing the potential dilution of the Company’s preferred shares and ADSs. The Company recognized a total expense for capped call operations in the amount of R$56,306, comprising R$74,728 of changes in fair value, net of R$18,422 of exchange rate change, for the fiscal year ended on December 31, 2020 (R$23,229 of changes in fair value on December 31, 2019). 33.4. Credit risk Credit risk is inherent in the Company’s operating and financing activities, mainly in cash and cash equivalents, short-term investments and trade receivables. Financial assets classified as cash, cash equivalents, and short-term investments are deposited with counterparties rated investment grade or higher by S&P or Moody's (between AAA and AA-), pursuant to risk management policies. Credit limits are set for all customers based on internal credit rating criteria and carrying amounts represent the maximum credit risk exposure. Customer creditworthiness is assessed based on an internal system of extensive credit rating. Outstanding trade receivables are frequently monitored by the Company. Derivative financial instruments are contracted in the over-the-counter market (OTC) with counterparties rated investment grade or higher, or in a commodities and futures exchange (B3 or NYMEX), thus substantially mitigating credit risk. The Company's obligation is to evaluate counterparty risk involved in financial instruments and periodically diversify its exposure. 33.5. Liquidity risk The Company is exposed to liquidity risk in two distinct ways: (i) market prices, which vary in accordance with the types of assets and markets where they are traded, and (ii) cash flow liquidity risk related to difficulties in meeting the contracted operating obligations at the maturity dates. In order to manage liquidity risk, the Company invests its funds in liquid assets (government bonds, CDBs and investment funds with daily liquidity) and its Cash Management Policy requires the weighted average maturity of its debt to be longer than the weighted average term of its investment portfolio term. The schedules of financial liabilities held by the Company's financial liabilities on December 31, 2020 and 2019 are as follows: Less than 6 months 6 to 12 months 1 to 5 years More than 5 years Total Loans and financing 2,120,462 232,817 6,804,167 819,520 9,976,966 Leases 647,850 669,158 4,763,614 1,503,570 7,584,192 Suppliers 1,612,536 - 32,658 - 1,645,194 Derivatives liabilities 5,297 - - - 5,297 Other liabilities 287,275 - 331,479 - 618,754 On December 31, 2020 4,673,420 901,975 11,931,918 2,323,090 19,830,403 Loans and financing 1,112,414 1,724,940 7,519,263 1,890,448 12,247,065 Leases 1,257,430 1,018,266 5,862,268 967,404 9,105,368 Suppliers 1,286,264 - 10,142 - 1,296,406 Suppliers - Forfeiting 554,467 - - - 554,467 Derivatives liabilities 9,080 - 11,270 - 20,350 On December 31, 2019 4,219,655 2,743,206 13,402,943 2,857,852 23,223,656 33.6. Measurement of the fair value of financial instruments 2020 2019 Fair Value Level Book value Fair value Book value Fair value Cash and cash equivalents Level 1 59,936 59,936 5,505 5,505 Cash and cash equivalents Level 2 170,359 170,359 - - Short-term investments Level 1 22,465 22,465 953,762 953,762 Short-term investments Level 2 606,870 606,870 - - Restricted cash Level 2 544,607 544,607 444,306 444,306 Derivative assets Level 2 128,809 128,809 147,469 147,469 Loans and financing Level 1 (346,030) (346,030) (626,557) (626,557) Derivatives liabilities Level 2 (5,297) (5,297) (20,350) (20,350) The fair value of financial instruments measured at amortized cost has not been disclosed since the fair value is close to its book value based on the conditions established, mainly due to the short term of the maturity of these assets and liabilities. The fair values for loans and financing, which differ from accounting balances, in turn, are disclosed in note 17. 33.7. Capital management The Company seeks alternatives to capital in order to meet its operational needs, aiming a capital structure that takes into account suitable parameters for the financial costs, the maturities of funding and its guarantees. The Company monitors its financial leverage ratio, which corresponds to net indebtedness, including short and long-term loans and financing and leases. The following table shows the financial leverage: 2020 2019 Total loans and financing (9,976,966) (8,409,841) Total leases (7,584,192) (6,052,780) (-) Cash and cash equivalents 654,444 1,645,425 (-) Short-term investments 629,335 953,762 (-) Restricted cash 544,607 444,306 Net indebtedness (15,732,772) (11,419,128)

34. Non-cash Transactions

34. Non-cash Transactions	12 Months Ended
	Dec. 31, 2020
Non-cash Transactions [abstract]
Non-cash Transactions	34. Non-cash transactions 2020 2019 Initial adoption - IFRS 16 - 2,436,333 Share-based payment (Capital/Share-based payment) (23,400) (31,222) Effects of changes in equity interest (Capital reserves / Minority interest) (352) (649) Interest on shareholders’ equity for distribution, net of taxes 23,139 - Actuarial losses from post-employment benefits 13,921 87,541 Dividends - 238,359 Leaseback (Fixed assets/Leases) (248,729) - Leaseback (Leases) 289,102 - Forfeiting (Forfeiting/Loans) (411,457) - Acquisition of property, plant and equipment through financing (Property, plant and equipment / Loans and financing) 25,974 164,234 Guarantee deposits and Maintenance reserve (Deposits / Leases) (77,009) (6,974) Capitalized deposits (Deposits / Property, plant and equipment) (39,729) - Right of use of flight equipment (Property, plant and equipment / Leases) 165,146 957,026 Financial lease agreement renegotiation (Property, plant and equipment / Leases) 221,248 - Unrealized income (expenses) of derivatives (Derivative assets/Equity valuation adjustment) - 30,021

35. Liabilities from financing

35. Liabilities from financing activities	12 Months Ended
	Dec. 31, 2020
Changes in liabilities arising from financing activities [abstract]
Liabilities from financing activities	35. Liabilities from financing activities The changes in the liabilities of the Company’s financing activities are shown below for the years ended December 31, 2020, 2019 and 2018: 2020 Non-Cash Transactions Adjustment to Profit Opening balance Net cash flows from (used in) financing activities Net cash flows from operating activities Property, plant and equipment acquisition through financing Forfaiting Variation in variable and short-term liabilities Deposit in guarantee Write-off Exchange rate changes, net Provision for interest and cost amortization Contractual amendment Unrealized income (expenses) on derivatives Closing balance Loans and financing 8,409,841 (814,710) (615,027) 25,974 411,457 - - - 2,207,107 727,318 - (374,994) 9,976,966 Leases 6,052,780 (1,058,692) (4,530) 454,248 - 18,731 (47,215) (704,164) 1,833,257 818,529 221,248 - 7,584,192 2019 Non-cash changes Adjustment to profit Opening balance Net cash flows (used in) from financing activities Net cash flows from operating activities Property, plant and equipment acquisition through financing and lease Maintenance reserve Escrow deposit Initial adoption adjustment – IFRS 16 Gains (losses) recognized in other comprehensive income (loss) Exchange rate variation, net Interest accrued and cost amortization Write-offs and contractual amendment Other results Closing balance Loans and financing 6,443,807 1,401,125 (444,006) 164,234 - - - - 313,717 571,681 - (40,717) 8,409,841 Leases 912,145 (1,617,677) (23,304) 957,026 (6,498) (476) 5,370,868 - 241,612 502,544 (283,460) - 6,052,780 Derivatives 409,662 (407,322) (43.008) - - - - (94,527) (13,946) - - 22,022 (127,119) 2018 Non-cash changes Opening balance Cash flow Income for the year Property, plant and equipment acquisition through financing Disposal property, plant and equipment Dividends provisioned through the subsidiary Smiles Provision for interest on loans Treasury shares sold Gains on change in investment Exchange rate variation, net Interest payments and loan cost Other Closing balance Loans and financing 7,105,667 (536,888) - 193,506 (805,081) - 565,854 - 1,043,117 (481,708) - 7,084,467 Other liabilities 143,473 (219,493) - - - 238,879 - - - - - (15,620) 147,239 Non-controlling interests from Smiles 412,013 875 305,669 - - (239,877) - - 561 - - 820 480,061 Capital stock 2,927,184 15,428 - - - - - - - - - - 2,942,612 Treasury shares (4,168) (15,929) - - - - - 19,971 - - - - (126) Shares to be issued - 2,818 - - - - - - - - - - 2,818

4. Summary of significant acc_2

4. Summary of significant accounting practices (Policies)	12 Months Ended
	Dec. 31, 2020
Summary of significant accounting practices [absract]
Consolidation	4.1. Consolidation The financial statements include the financial statements of the Company and of the subsidiaries in which the Company has a direct or indirect control. Control is obtained when the Company: · has power over the investee; · is exposed, or has rights, to variable returns from its involvement with the investee; and · has the ability to use that power to affect its returns. There is generally a presumption that a majority of voting rights results in control. To support this presumption and when the Company holds less than the majority of the voting rights of an investee, the Company considers all relevant facts and circumstances when assessing if it has power in relation to an investee. The Company reassesses if it has control over an investee if facts and circumstances indicate changes in one or more of the three control elements listed above. The consolidation of a subsidiary begins when the Company obtains control over the subsidiary and ends when the Company loses control over the subsidiary. The variation in equity interest in subsidiary, without loss of control, is accounted for as an equity transaction. Accounting practices were uniformly applied to all consolidated companies, consistent with those used by the parent company and adopted in the previous fiscal year. All transactions and balances between GOL and its subsidiaries were eliminated in the consolidation, as well as the unrealized profits or losses arising from these transactions, including charges and taxes. The income (expenses) and each component of other comprehensive income (expenses) are attributed to the shareholders of the parent company and to the non-controlling interest, even if this results in a loss to non-controlling shareholders.
Investments	4.2. Investments Investments in associates are initially recognized at cost and subsequently adjusted using the equity method. If the investee generates operating losses that lead the shareholders’ equity to become negative, the Company adopts the provisions set forth in IAS 28 - "Investment in Associates and Joint Ventures” and does not make additional records. The equity method result is recorded again when the investee recovers all accumulated losses.
Cash and cash equivalents	4.3. Cash and cash equivalents The Company classifies in this group the balances of cash, bank deposits, automatic financial investments, and securities of immediate liquidity, which, according to analyses, are readily convertible into a known amount of cash with an insignificant risk of change in value. Financial investments classified in this group, due to their very nature, are measured at fair value through profit or loss and will be used by the Company in a short period of time.
Short-term investments	4.4. Short-term investments In the presentation and measurement of financial assets, the Company considers the provisions of IFRS 9 - “Financial Instruments”, which establishes that financial assets must be initially measured at fair value less costs directly linked to their acquisition. In turn, the subsequent measurement is divided into two categories: 4.4.1. Amortized cost Short-term investments are measured at amortized cost when all of the following conditions are met: · the Company plans to hold the financial asset to collect the contractual cash flows; and · the contractual cash flows represent only the payments of interest and principal (“SPPI”). 4.4.2. Fair value · through comprehensive income (expenses) · through profit or loss considered a residual category, that is, if the Company does not plan to hold the financial asset to collect the contractual cash flows and/or sell the asset, it must be measured at fair value through profit or loss. The Company may also choose, upon initial recognition, to designate the financial asset as measured at fair value through profit or loss, to eliminate or significantly reduce measurement or recognition inconsistencies, called "accounting mismatch". The financial instruments designated at fair value through profit or loss are to eliminate or significantly reduce an accounting mismatch, thus appraised at market value.
Restricted cash	4.5. Restricted cash Restricted cash includes financial investments measured at fair value through profit or loss, used mainly as guarantees linked to financial instruments, as well as deposits for lease transactions.
Trade receivables	4.6. Trade receivables They are measured based on the invoiced figure, net of estimated losses on provision for loan losses, and approximate the fair value given their short-term nature. In compliance with IFRS 9 – “Financial Instruments”, the provision for loan losses was measured through a simplified approach, using historical data, projecting the expected loss over the contractual life, by segmenting the receivables portfolio into groups that have the same receipt pattern and according to the respective maturity terms. In addition, for certain cases, the Company carries out individual analyses to assess the receipt risks.
Inventories	4.7. Inventories Inventory balances mainly include materials for maintenance and replacement of parts. Inventories are measured at the average acquisition cost plus expenses such as non-recoverable taxes and customs expenses incurred in acquisition and transportation expenses until the current location of the items. Provisions for inventory obsolescence are recorded for those items that have no expectation of realization.
Income tax and social contribution	4.8. Income tax and social contribution 4.8.1. Current taxes In Brazil, includes income tax (“IRPJ”) and social contribution on profit (“CSLL”), which are calculated monthly based on the taxable income, after offsetting tax losses and negative social contribution base, limited to 30% of the taxable income, applying the rate of 15% plus an additional 10% for the IRPJ and 9% for the CSLL. 4.8.2. Deferred taxes Deferred taxes represent credits and debits on IRPJ’s tax losses and negative CSLL bases, as well as temporary differences between the tax and accounting bases. Deferred tax and contribution assets and liabilities are classified as non-current. An impairment loss on these assets is recognized when the Company’s internal studies indicate that the future use of these credits is not probable. Deferred tax assets and liabilities are shown net if there is an enforceable legal right to offset tax liabilities against tax assets. However, for presentation purposes, if related to taxes levied by the same tax authority under the same taxable entity, the balances of tax assets and liabilities that do not meet the legal criterion of realization are disclosed separately. Deferred tax assets and liabilities were measured at the rates that are expected to be applicable in the period in which the asset is realized, or the liability is settled, based on the tax rates and legislation in force on the date of the financial statements. The forecast of future taxable income on tax losses and negative social contribution base is prepared based on the business plans and are reviewed and approved annually by the Company’s Board of Directors.
Rights and obligations with derivative financial instruments	4.9. Rights and obligations with derivative financial instruments Variations in interest rates, foreign exchange rates and aviation fuel prices expose the Company and its subsidiaries to risks that may affect their financial performance. To mitigate such risks, the Company, through its subsidiaries, contracts derivative financial instruments that may or may not be designated for hedge accounting and, if designated, are classified as cash flow hedge. Derivatives financial instruments are measured at fair value at recognition and at subsequent reporting dates. 4.9.1. Derivative financial instruments not designated as hedge accounting The Company may contract derivative financial instruments that are not designated for hedge accounting when the Risk Management’s purposes do not require such classification. Transactions not designated as hedge accounting have the change in their fair value accounted for directly in the financial results. 4.9.2. Derivative instruments classified as cash flow hedge The instruments designated as cash flow hedge have the purpose of protecting future income (expenses) arising from changes in interest rates, fuel prices and foreign exchange. The effectiveness of the variations is estimated based on statistical methods of correlation and by the proportion between the hedge’s gains and losses and the variation of the costs and expenses protected. The effective variations in fair value are recorded in the shareholders’ equity in “Other comprehensive income”, up to the recognition of the result of the hedged object. The inefficiencies found in each reporting period are recognized in the financial income (expenses). The hedge transactions recorded in “Other comprehensive income” are net of tax effects. 4.9.3. Derecognition and write-off of derivative financial instruments The hedge accounting is discontinued prospectively when the Company and its subsidiaries (i) cancel the protection relationship; (ii) the derivative instrument expires or is sold, terminated or executed, (iii) when there is low predictability of realization of the hedge’s object, or (iv) when it no longer qualifies as hedge accounting. If the operation is discontinued, any gains or losses previously recognized in “Other comprehensive income” and accumulated in the shareholders’ equity up to that date are immediately recognized in the income (expenses) for the fiscal year.
Deposits	4.10. Deposits 4.10.1. Deposits for the maintenance of aircraft and engines Refer to payments made in U.S. dollars to lessors for the future maintenance of aircraft and engines. The realization of these assets occurs, substantially, in the use of the deposit for payment to the workshop when the maintenance is carried out or through the receipt of financial resources, according to the negotiations carried out with the lessors. The exchange rate change of these payments is recognized as an expense or income in the financial results. Management regularly assesses the impairment of these deposits based on the eligibility of the application of such amounts in future maintenance events and believes that the figures reflected in the balance sheet are realizable. Some of the agreements foresee that, if there are no maintenance events with the possibility of using the deposits, the deposits for this operation are not refundable. Such amounts are retained by the lessor and represent payments made according to the use of the components until the return date. Accordingly, the amounts in this category are recognized directly in the income (expenses) for the fiscal year under “Maintenance, material and repairs”, considering the regular impairment test or when the asset is returned. In addition, the Company has agreements with some lessors to replace deposits for credit bills, which can be executed by the lessors if the maintenance of the aircraft and engines does not occur according to the review schedule. Several aircraft lease agreements do not require maintenance deposits and have credit bills to ensure the maintenance is carried out in the scheduled periods. Until December 31, 2020, no credit bill had been executed against the Company. 4.10.2. Court deposits In the course of the lawsuits brought against the Company and on which the legitimacy of the claims is questioned, the Company may be required to make appeals and/or judicial deposits to continue its defense strategy. These amounts are monetarily restated, mostly by inflation indexes, and are characterized as non-reachable resources by the Company, pending a judicial decision. 4.10.3. Deposits in guarantee and collateral for lease agreements Deposits and guarantees are denominated in U.S. dollars and updated monthly by the foreign exchange rates, without interest income and are refundable to the Company at the end of the lease agreements.
Proerty, plant and equipment	4.11. Property, plant and equipment Property, plant and equipment, including rotables (spare parts), are recorded at acquisition and/or construction cost. Interest and financial charges directly related to the acquisition, construction or production of a good that necessarily requires significant time to complete are capitalized as part of the cost of the corresponding asset. Every item of the property, plant and equipment that has a significant cost in relation to the total asset is depreciated separately. The estimated economic useful life of property, plant and equipment, for purposes of depreciation, is shown in Note 15. The estimated market price at the end of its useful life is the premise used to set the residual value of the Company’s property, plant and equipment. The residual value and useful life of the assets are reviewed annually by the Company. Any variation due to changes in the expectation of using such items results in prospective changes. The book value of the property, plant and equipment is analyzed to verify possible impairment loss when facts or changes in circumstances indicate that the book value is greater than the estimated recoverable amount. The book value of the aircraft is annually tested for impairment, even if there are no circumstances that indicate losses. An item of property, plant and equipment is written-off after disposal or when there are no future economic benefits resulting from the continued use of the asset. Any gains or losses on the sale or write-off of an item are established by the difference between the amount received on the sale and the book value of the asset and are recognized in the income (expenses). Additionally, the Company adopts the following treatment for the groups below: 4.11.1. Prepayments for aircraft acquisition Refers to prepayments in U.S. dollars made to Boeing for the acquisition of 737-MAX aircraft. Prepayments are converted at the historical rate. 4.11.2. Lease agreements Up to December 31, 2018, for lease agreements in which the risks and benefits of the leased asset were transferred to the Company, the asset was recognized in the balance sheet with a corresponding entry in the financial liability, at the beginning of the lease term, at amounts equivalent to the value fair value of the leased asset or, if lower, at the present value of the minimum lease payment. Leased assets were depreciated over their useful lives. However, when there was no reasonable certainty that the Company would obtain the property at the end of the lease term, the asset was depreciated over its estimated useful life or within the lease term, whichever is less. The other aircraft and engine leases were classified under the operating modality, and payments were recognized as an expense in the statement of operations on a straight-line basis over the term of the agreement, under the item “Operating Leases”. The future payments of such agreements did not represent an obligation recorded in the balance sheet; however, the commitments undertaken were duly presented in the Notes. As of January 1, 2019, the Company started recording lease agreements in accordance with IFRS 16 – “Leases”, which differs significantly from the accounting practice previously adopted. IFRS 16 – “Leases” established the principles for recognizing, measuring, presenting and disclosing lease transactions and required lessees to recognize all leases in accordance with a single statement of financial position model, similar to the recognition of finance leases pursuant to IAS 17 – “Leases”. The Company adopts exemptions for lessees, set forth in the standard, for leases of “low value” assets, for example, personal computers, and short-term leases, i.e., leases for which the term ends within 12 months or less. At the beginning of a lease, the Company, as lessee, recognizes a liability to carry out payments (lease liability) and an asset representing the right to use the leased item for the lease term (right-of-use asset). The Company recognizes interest expenses separately from the lease liability and depreciation expenses of the right-of-use asset. 4.11.2.1. Right-of-use assets The Company recognizes the right-of-use assets on the starting date of the lease (that is, on the date when the underlying asset is available for use). Right-of-use assets are measured at cost, less any accumulated depreciation and impairment losses, and adjusted for any new remeasurements of lease liabilities. The cost of right-of-use assets includes the amount of recognized lease liabilities, initial direct costs incurred and lease payments made up to the starting date, less any lease incentives received. Right-of-use assets are depreciated on a straight-line basis over the shortest period between the lease term and the estimated useful lives of the assets. In certain cases, if the ownership of the leased asset is transferred to the Company at the end of the lease term or if the cost represents the exercise of a call option, depreciation is calculated using the estimated useful life of the asset. The cost of a right-of-use asset also includes an estimate of the costs to be incurred by the Company when returning the underlying asset, restoring the underlying asset to the condition required by the lease terms and conditions. The Company incurs an obligation for these costs, either on the start date or due to using the underlying asset during the term of the contract. 4.11.2.2. Lease liabilities On the lease’s start date, the Company recognizes lease liabilities measured at the present value of lease payments to be made during the lease term. Lease payments include fixed payments (including, substantially, fixed payments) less any lease incentives receivable, variable lease payments that depend on an index or rate and expected amounts to be paid under residual value guarantees. Lease payments also include the exercise price of a purchase option reasonably certain to be exercised by the Company and payment of fines for terminating the lease, if the lease term reflects the exercise of the option to terminate the lease by the Company. Variable lease payments that do not depend on an index or rate recognized as expenses in the period in which the event or condition that generates these payments occurs. When calculating the present value of lease payments, the Company uses its additional loan rate on the start date because the interest rate implied by the lease is not easily ascertained. After the start date, the value of the lease liability is increased to reflect the time elapsed and, therefore, the increase in interest and reduced for the lease payments made. In addition, the book value of lease liabilities is remeasured if there is a change, a change in the lease term, a change in lease payments (for example, changes in future payments resulting from a change in an index or rate used to determine such lease payments) or a change in the valuation of a call option on the underlying asset. The Company reassess the lease liability whenever certain events occur, such as a change in the term of the lease or a change in future lease payment flows due to a variation in the reference index or rate used to calculate such payments. Among the adoption methods provided for in the standard, the Company chose to adopt the modified retrospective approach. 4.11.2.3. Sale-leaseback transactions The calculation to recognize the income (expenses) of sale-leaseback transactions uses the fair value of the negotiated asset as a reference. The source of information to obtain the fair value is the market price for items of a similar nature, considering the asset condition. After the fair value is defined, gains or losses are initially calculated based on the difference between the fair value and the book value of the assets and subsequently adjusted according to the proportionality of the right of use transferred to the lessor (the latter being the effective value recognized in the result as income (expenses)). The proportionality calculation is carried out considering the present value of the adjusted lease by the anticipated payments or additional financing. 4.11.3. Capitalization of expenses with major maintenance of engines, aircraft, landing gear and APU (auxiliary power units) Expenses with major maintenance events, which include replacement of parts and labor, are capitalized only when there is an extension of the estimated useful life of the corresponding asset. Such costs are capitalized and depreciated over the estimated period to be incurred until the next major maintenance or the return of the asset, whichever occurs first. Expenses incurred that do not extend the useful lives of assets are recognized directly in the statement of operations.
Intangible assets	4.12. Intangible assets 4.12.1. Finite useful life Intangible assets acquired are measured at the cost of their initial recognition. After initial recognition, intangible assets with finite useful lives, usually software, are stated at cost, less the accumulated amortization and impairment losses, when applicable. Intangible assets generated internally, excluding development costs, are not capitalized, and the expense is reflected in the statement of operations for the fiscal year in which it was incurred. The useful life of an intangible asset is evaluated as finite or indefinite. Intangible assets with finite lives are amortized over their useful economic lives and are assessed for impairment whenever there is an indication of impairment. The amortization period and method for an intangible asset with a finite life are reviewed at least at the end of each fiscal year. The amortization of intangible assets with finite lives is recognized in the statement of operations in the expense category consistent with the useful economic life of the intangible asset. 4.12.2. Indefinite useful life 4.12.2.1. Goodwill In this category, the amounts corresponding to the goodwill arising from business combinations carried out by the subsidiaries GLA and Smiles Fidelidade are recorded. The goodwill value is tested annually by comparing the book value with the recoverable value of the cash-generating unit. Management evaluates and establishes assumptions to assess the impact of macroeconomic and operational changes, to estimate future cash flows and measure the recoverable value of assets. 4.12.2.2. Airport operation rights (“Slots”) In the business combination of GLA and Webjet, slots were acquired, recognized at their fair values on the acquisition date and were not amortized. The estimated useful life of these rights was considered indefinite due to several factors and considerations, including requirements and permits to operate in Brazil and the limited availability of use rights at the most important airports in terms of air traffic volume. The book value of these rights is assessed annually, based on the GLA cash-generating unit regarding its recoverable amount or in cases of changes in circumstances that indicate that the book value may not be recoverable. No impairment loss has been recorded to date.
Loans and financing	4.13. Loans and financing Loans and financing are initially recognized at fair value less any directly attributable transaction costs. After the initial recognition, these financial liabilities are measured at amortized cost using the effective interest method, except for the contracted derivatives linked to Exchangeable Senior Notes, which are measured at fair value through profit or loss. Gains and losses are recognized in the statement of operations when the liabilities are written off. The amortized cost is calculated considering any negative discount or premium in the contract and fees or costs that are fully part of the effective interest rate method. Amortization using the effective interest rate method is included as a financial expense in the statement of operations, except when subject to capitalization.
Suppliers and other obligations	4.14. Suppliers and other obligations They are initially recognized at fair value and subsequently increased, when applicable, by the corresponding charges and monetary and exchange rate changes incurred up to the closing dates of the financial statements. 4.14.1. Suppliers - forfeiting Management carried out a negotiation with suppliers with the purpose of extending payment terms. Accordingly, the Company signed an agreement with financial institutions that allows receivables from its suppliers to be anticipated. Considering that the anticipation of this receipt with the financial institutions is an option of the suppliers, as well, the Company is not reimbursed and/or benefited by the financial institution with discounts for payment before the maturity date agreed with the supplier, there is no change in the degree of subordination in case of judicial execution.
Advance ticket sales	4.15. Advance ticket sales Represents the Company’s obligations to provide air transportation services and other ancillary services to its clients, net of breakage revenue already recognized in the statement of operations, as detailed in Note 4.18.1.
Provisions	4.16. Provisions Provisions are recognized when the Company has a present obligation, formalized or not, as a result of a past event, and it is probable that economic benefits will be required to settle the obligation and a reliable estimate of its value can be made. 4.16.1. Provision for aircraft return Aircraft lease agreements regularly provide for contractual obligations establishing conditions for return. In these cases, the Company makes provisions for the return costs, since these present obligations, arising from past events and which will generate future disbursements, which are measured with reasonable certainty. These expenses basically refer to aircraft reconfiguration (interior and exterior), obtaining licenses and technical certifications, return checks, painting, among others, as established in the agreement. The estimated cost is initially recorded at the present value in property, plant and equipment, and the corresponding entry of the provision for aircraft return is recorded in the “Provisions”. After the initial record, the liability is updated according to the capital remuneration rate estimated by the Company, with a corresponding entry in the income (expenses). Any changes in the estimate of expenses to be incurred are recorded prospectively. 4.16.2. Provision for engine return They are estimated based on the minimum contractual conditions under which the equipment must be returned to the lessor, observing the historical costs incurred and the conditions of the equipment at the time of the appraisal. These provisions are recorded in the statement of operations for the fiscal year from the moment the contractual requirements are met, and the next maintenance is scheduled for a date later than the date scheduled to return the engine. The Company estimates the provision for the return of the engine according to the expense expected to incur and when the amount can be reliably estimated. The amount of a provision will be the present value of the expenses that are expected to be required to settle the minimum obligation. The term will be based on the date that the leased engine is expected to be returned, that is, the term of the lease. 4.16.3. Provision for tax and labor risks The Company is a party to a number of judicial and administrative proceedings, mainly in Brazil, whose assessments of the likelihood of loss include an analysis of the available evidence, the hierarchy of laws, the available jurisprudence, the most recent court decisions, and their relevance in the legal system, as well as the assessment of external lawyers. Provisions are reviewed and adjusted to reflect changes in circumstances, such as the applicable statute of limitations, conclusions of tax inspections, or additional exposures identified based on new matters or court decisions.
Post-employment benefits	4.17. Post-employment benefits As of the fiscal year ended December 31, 2019, the Company started to recognize actuarial assets and liabilities related to the health care plan benefits offered to its employees in accordance with IAS 19 – “Employee Benefits”. Actuarial gains and losses are recognized in other comprehensive income (expenses) based on the actuarial report prepared by independent experts, while the benefits paid directly by the Company, the cost of current service and the cost of interest are recognized in the income (expense) for the fiscal year. In 2019, Management assessed the impact of not adopting the standard in previous fiscal years and concluded that the effects were immaterial and did not lead to losses to users of the previously disclosed financial statements.
Recognition of revenue	4.18. Recognition of revenue 4.18.1. Revenue from passengers, cargo and ancillary services Passenger revenue is recognized when air transportation is actually provided. Tickets sold but not yet used are recorded in the item of advance from ticket sales, representing deferred revenue from tickets sold to passengers to be transported at a future date, net of the estimated breakage revenue. Breakage revenue calculates, on a historical basis, tickets issued that will expire due to non-use, that is, passengers who have purchased tickets and are highly likely not to use them. The calculations are reviewed at least once a year to reflect and capture changes in customer behavior in relation to ticket expiration. Revenues from cargo shipments are recognized when performance obligations are met. Other revenues that include charter services, on-board sales services, flight rebooking fees, baggage drop-off, and other additional services are recognized along with the primary passenger transportation obligation. 4.18.2. Mileage revenue The Smiles Program has the purpose to build customer loyalty by granting mileage credits to participants. The obligation generated by issuing miles is measured based on the price at which the miles were sold to Smiles’ air and non-air partners, considered as the fair value of the transaction. The revenue is recognized in the income (expenses) for the fiscal year when the miles are redeemed by participants in the Smiles Program and exchanged for awards with their partners. From the perspective of the consolidated financial statements, the cycle of recognition of revenue in relation to the exchange of miles from the Smiles Program for airline tickets is only completed when passengers are effectively transported. The subsidiary Smiles acts as an agent and fulfills its performance obligation when participants redeem the miles of the Smiles Program and exchange them for awards with its partners. This is the moment when revenue is recognized in the income (expenses). Accordingly, the gross revenue is shown net of its respective direct variable costs related to making goods and services available to participants. As a result of its characteristics, the miles program also provides the possibility of recognizing a breakage revenue, which in turn is established based on the calculation of miles that have a high expiration potential to their non-use by the Smiles Program’s participants. The calculation is applied to the miles issued in the period, giving rise to the breakage revenue. It should be noted that future events can significantly change the profile of customers and their historical pattern of redemption of miles. Such changes may lead to significant changes in the balance of deferred revenue, as well as in the recognition of breakage revenue, statistical calculation reviewed annually. 4.18.3. Adoption of hedge accounting to protect future revenues with passengers and ancillary services In the regular course of its operations, the Company has recurring sales in U.S. dollars (“US$”), mainly as a result of international routes in South, Central, and North America. Accordingly, as of August 1, 2019, Management has adopted the cash flow hedge accounting as a way to reduce the volatility for these future foreign currency revenues, which are considered highly probable, as provided for and stated in Paragraph 6.3.1 of IFRS 9 – “Financial Instruments”, using as hedge instruments the lease agreements recorded as a debt due to the adoption of IFRS 16 – “Leases”. With the adoption of hedge accounting, the foreign exchange gains and losses arising from the lease agreements (hedge instrument) will be accumulated in shareholders’ equity, “Adjustments to equity valuation”, appropriated to the Company’s income (expenses) upon the realization of the revenues from sales in US$. Hedge accounting derives from the natural hedge of the Company’s operations, portrayed by cash flow (revenues and amortization of debt in US$) and does not represent an increase in financial costs, allowing the elimination of some of the exchange rate volatility in the Company's income (expenses). The final position of shareholders’ equity is not affected by the adoption of this accounting practice. The elements of hedge accounting are: (1) hedged: highly probable sales revenue in US$; (2) hedge instrument: lease contracts linked to the US$; (3) amount designated: (1) hedged object: highly probable sales revenue in US$; (2) hedge instrument: 50 lease agreements linked to US$; (3) designated amount: 60 months of highly probable revenues based on a range of 80 to 85% of historically earned revenues, totaling US$903,102 at the initial adoption; (4) nature of the hedged risk: exchange rate change; (5) specification of the hedged risk: USD/BRL spot exchange rate change; (6) type of hedge: cash flow.
Share-based compensation	4.19. Share-based compensation 4.19.1. Stock options The Company offers stock option plans to its executives. The Company recognizes as an expense, on a straight-line basis, the fair value of the options or shares, calculated on the grant date by the Black-Scholes method, during the period of service required by the plan, as a corresponding entry to the shareholders’ equity. The accumulated expense recognized reflects the acquisition period and the Company’s best estimate of the number of shares that will be acquired. The expense or revenue from the movement occurred during the fiscal year is recognized in the statement of operations. The effect of outstanding options is reflected as an additional dilution in the calculation of diluted earnings per share. The plans have been settled with the delivery of the shares. 4.19.2. Restricted shares The Company can also offer to its executives a plan to transfer restricted shares, taking place at the end of three or four years after the grant date, as set forth in each program’s plan, provided that the beneficiary has held his/her employment relationship during this period. Such transfer occurs preferably through shares held in treasury. The impact of any revision of the number of restricted shares that will not be acquired in relation to the original estimates, if any, is recognized in the income (expenses) for the fiscal year, in such a way that the accumulated expense reflects the revised estimates with the corresponding adjustment in the shareholders’ equity. The plans have been settled with the delivery of the shares.
Profit-sharing for employees and members of Management	4.20. Profit-sharing for employees and members of Management The Company’s employees are entitled to profit sharing based on certain goals agreed annually. For the members of Management the goals are based on the statutory provisions proposed by the Board of Directors and approved by the shareholders. The profit sharing is recognized in the statement of operations for the period in which the goals are achieved.
Financial results	4.21. Financial results Include interest revenues on amounts invested, exchange rate changes on assets and liabilities, changes in the fair value of financial assets measured at fair value through profit or loss, gains and losses on hedge instruments that are recognized in the income (expenses), interest on loans and financing, commissions and bank charges, among others. Interest revenues and expenses are recognized in the statement of operations using the effective interest method.
Earnings (loss) per share	4.22. Earnings (loss) per share Basic earnings per share are calculated by dividing the net income for the fiscal year attributed to the Company’s controlling shareholders by the weighted average number of all classes of shares outstanding during the year. Diluted earnings (loss) per share are calculated by adjusting the weighted average number of shares outstanding by instruments potentially convertible into shares unless these adjustments are not dilutive.
Segments	4.23. Segments An operating segment is part of the Company that develops business activities to obtain revenues and incur expenses. The operating segments reflect the way in which the Company’s management reviews the financial information to make decisions. The Company’s Management identified the operating segments, which meet the quantitative and qualitative parameters of disclosure and represent the main types of business: air transportation and loyalty program. 4.23.1. Air transportation segment The operations in this segment originate mainly from the subsidiary GLA, for the provision of air passenger transportation services and the main revenue-generating assets are its aircraft. Other revenues originate mainly from cargo operations and related services such as baggage drop-off, fines for rebooking and cancellation of tickets, etc. 4.23.2. Loyalty program segment The operations of this segment are represented by transactions for the sale of miles to air and non-air partners. In this context, includes management of the program, the marketing and redemption rights of products and services and the creation and management of a database of individuals and companies. The main cash-generating asset is its portfolio of program participants.
Transactions in foreign currency	4.24. Transactions in foreign currency Foreign currency transactions are recorded at the exchange rate change prevailing on the date on which the transactions take place. Monetary assets and liabilities designated in foreign currency are calculated based on the exchange rate change on the balance sheet date. Any difference resulting from the translation of currencies is recorded under the item “Exchange rate change, net” in the statement of operations for the fiscal year. The exchange rate changes in reais in effect on the base date of these financial statements are as follows: Final Rate Average Rate 2020 2019 2020 2019 U.S. Dollar 5.1967 4.0307 5.1425 4.1102 Argentinian Peso 0.0617 0.0673 0.0622 0.0686
New accounting standards and pronouncements adopted in the current fiscal year	4.25. New accounting standards and pronouncements adopted in the current fiscal year The standards listed below have become valid for annual periods beginning on or after January 1, 2020. The Company decided not to adopt in advance any other standard, interpretation or amendment that has been issued but is not yet in force. 4.25.1. Amendments to IFRS 3: Definition of a business The amendments to IFRS 3 – “Business Combinations” clarify that, to be considered a business, an integrated set of activities and assets must include, at a minimum, an input - input of resources and a substantive process that, together, contribute significantly to the capacity to generate output - output of resources. In addition, clarified that a business can exist without including all inputs - inputs of resources and processes necessary to create outputs - outputs of resources. These changes had no impact on the Company's financial statements but may impact future periods if the Company enters into any business combinations. 4.25.2. Amendments to IAS 39, IFRS 7 and IFRS 9: Interest rate benchmark reform The amendments to Pronouncements IAS 39 – “Financial Instruments: Recognition and Measurement” and IFRS 9 – “Financial Instruments” provide exemptions that apply to all protective relationships directly affected by the reference interest rate reform. A protective relationship is directly affected if the reform raises uncertainties about the period or the value of cash flows based on the reference interest rate of the hedged item or hedging instrument. These changes have no impact on the Company's financial statements since it does not have interest rate hedging relationships. 4.25.3. Amendments to IAS 1 and IAS 8: Definition of material The amendments provide a new definition of material that states, “the information is material if its omission, distortion or obscurity could reasonably influence decisions that primary users of general purpose financial statements make based on those financial statements, which provide financial information on entity-specific report”. The amendments clarify that the materiality will depend on the nature or magnitude of the information, individually or in combination with other information, in the context of the financial statements. Distorted information is material if one could reasonably be expected to affect decisions made by primary users. These changes had no impact on the financial statements, nor is it expected to have any future impact for the Company and its subsidiaries. 4.25.4. Revision in Conceptual Framework for Financial Report The revised pronouncement outlines some new concepts, updates definitions and recognition criteria of assets and liabilities, and clarifies some important concepts. These changes had no impact on the Company's financial statements. 4.25.5. Amendments to IFRS 16: COVID-19 related rent concessions The amendments provide for concession to lessees in the application of the guidelines of IFRS 16 – “Leases”, on the modification of the lease, when accounting for the related benefits as a direct result of the COVID-19 pandemic. As a practical expedient, a lessee may choose not to assess if a benefit related to COVID-19 granted by the lessor is a modification of the lease. The lessee who makes this option must account for any change in the lease payment resulting from the benefit granted in the lease agreement related to COVID-19 in the same way that it would account for the change applying IFRS 16 if the change was not a change of the lease agreement. For agreements renegotiated until June 2020, which had only their payments postponed until June 2021, and meet the conditions provided for in the standard, the Company chose not to evaluate such changes as changes to the lease agreements, having applied the practical expedient above.
Main accounting estimates and assumptions used	4.26. Main accounting estimates and assumptions used As disclosed in Note 2, Management made judgments that have a significant effect on the amounts recognized in the financial statements, namely: • ticket and miles breakage revenue (Note 4.18.1 and 4.18.2); • allowance for expected loss on trade receivables accounts (Note 8); • advances to suppliers and third parties (Note 10); • annual analysis of the recoverable amount of taxes deferred (Note 12); • impairment test of maintenance deposits (Note 13); • useful life of property, plant and equipment and intangible assets with defined useful life (Notes 15 and 16); • annual impairment test of goodwill (Note 16); • impairment test of slots (Note 16); • advance ticket sales (Note 22); • provision for the return of aircraft and engines (Note 24); • provisions for post-employment benefits (Note 24); • provision for tax, civil and labor risks (Note 24); • share-based compensation transactions (Note 27); • rights and obligations with derivative transactions (Note 33); and • fair value of financial instruments (Note 33). The Company continuously reviews the assumptions used in its accounting estimates. The effect of revisions to accounting estimates is recognized in the financial statements in the period in which such revisions are made.
New accounting standards and pronouncements not yet adopted	4.27. New accounting standards and pronouncements not yet adopted 4.27.1. Amendments to IAS 1: Classification of liabilities as current or non-current In January 2020, IASB issued amendments to Paragraphs 69 to 76 of IAS 1 – “Presentation of Financial Statements”, to specify the requirements to classify the liability as current or non-current. The amendments clarify: · What means a right to postpone liquidation; · That the right to postpone must exist on the base date of the report; · That this classification is not affected by the likelihood that an entity will exercise its right to postpone · That only if a derivative embedded in a convertible liability is itself an equity instrument would the terms of a liability not affect its classification The changes are valid for periods beginning on or after January 1, 2023 and must be applied retrospectively. The Company currently assesses if such changes will have an impact on its financial statements. According to Management, there are no other standards and interpretations issued and not yet adopted that may have a significant impact on the income (expenses) or shareholders’ equity disclosed by the Company.

1. Operating context (Tables)

1. Operating context (Tables)	12 Months Ended
	Dec. 31, 2020
Operating Context [abstract]
Schedule of impacts on the financial statements	The tables below summarize the adjustments made to these financial statements, as well as the details on each of these items and additional disclosures: December 31, 2020 Losses with short-term investments (a) (65,403) Derecognition of cash flow hedge – Fuel (b) (315,286) Derecognition of cash flow hedge - Revenues in US$ (c) (290,345) Renegotiation of lease agreements – IFRS 16 (d) 19,080 Total (651,954) (a) Even though Management of the Company and its subsidiaries have remained faithful to the Company’s investment policy, the abrupt changes in macroeconomic indicators, including cuts to the SELIC rate made by the Federal Government, led the Company to record unusual losses in its short-term investments in sovereign fixed income funds linked to SELIC, as well as in private credit fixed income funds with a high degree of liquidity and high quality of credit. (b) Due to the operations downsizing, the Company derecognized operations designated as cash flow hedges, as a drop is expected in the fuel consumption previously estimated. Accordingly, the Company transferred R$315,286 in the fiscal year ended December 31, 2020 from the “equity valuation adjustment” group in shareholders’ equity to financial results as “derivative losses”. (c) Due to the temporary interruption of all international flights, the Company also derecognized hedge accounting transactions used to reduce the volatility of future revenues in foreign currency (hedged object), using lease agreements as hedge instruments. That said, the Company transferred R$418,527 from the “equity valuation adjustment” group in shareholders' equity to financial results as “exchange rate change expenses”. (d) The Company signed renegotiations of its aircraft and operating engine lease agreements, with no purchase option, including postponement and deferral of payments, postponement of due dates and changes to the amounts due, which led to an increase in the rights of use in PP&E and lease liabilities of R$176,041 and R$156,961, respectively, resulting in R$19,080. December 31, 2020 Balance Sheet – Adjustments Non-current Liabilities Other Comprehensive Income Provision for Post-Employment Benefits (e) (24,541) 24,541 (e) Given the abrupt changes in the macroeconomic scenario, the Company updated the actuarial studies that establish obligations from post-employment benefits, and - mainly due to the drop in the long-term interest rate - the balance related to such obligations was reduced by R$24,541. For further details, see Note 24.
Schedule of ownership structure	The Company’s equity interest in the capital of its subsidiaries, on December 31, 2020, is shown below: Entity Date of incorporation Location Principal activity Type of control % of interest in the capital stock in the capital stock 2020 2019 GAC March 23, 2006 Cayman Islands Aircraft acquisition Direct 100.00 100.00 Gol Finance Inc. March 16, 2006 Cayman Islands Fundraising Direct 100.00 100.00 Gol Finance June 21, 2013 Luxembourg Fundraising Direct 100.00 100.00 GLA April 9, 2007 Brazil Flight transportation Direct 100.00 100.00 AirFim November 7, 2003 Brazil Investment fund Indirect 100.00 100.00 Smiles Fidelidade August 1, 2011 Brazil Loyalty program Direct 52.60 52.61 Smiles Viagens August 10, 2017 Brazil Tourism agency Indirect 52.60 52.61 Smiles Fidelidade Argentina (a) November 7, 2018 Argentina Loyalty program Indirect 52.60 52.61 Smiles Viagens Argentina (a) November 20, 2018 Argentina Tourism agency Indirect 52.60 52.61 Fundo Sorriso July 14, 2014 Brazil Investment fund Indirect 52.60 52.61 Companies in Shareholding: SCP Trip April 27, 2012 Brazil On-board magazine - 60.00 60.00 (a) Companies with functional currency in Argentine pesos (ARS).

4. Summary of significant acc_3

4. Summary of significant accounting practices (Tables)	12 Months Ended
	Dec. 31, 2020
Summary of significant accounting practices [absract]
Schedule of exchange rate changes in reais	The exchange rate changes in reais in effect on the base date of these financial statements are as follows: Final Rate Average Rate 2020 2019 2020 2019 U.S. Dollar 5.1967 4.0307 5.1425 4.1102 Argentinian Peso 0.0617 0.0673 0.0622 0.0686

5. Cash and cash equivalents (T

5. Cash and cash equivalents (Tables)	12 Months Ended
	Dec. 31, 2020
Cash and cash equivalents [abstract]
Schedule of cash and cash equivalents	2020 2019 Cash and bank deposits 428,812 418,447 Cash equivalents 234,018 1,226,978 Total 662,830 1,645,425
Schedule of breakdown of cash equivalents	The breakdown of cash equivalents is as follows: 2020 2019 Local currency Private bonds and deposits with banks 170,359 514,356 Automatic deposits 59,936 5,505 Total local currency 230,295 519,861 Foreign currency Deposits with banks 3,723 707,117 Total foreign currency 3,723 707,117 Total 234,018 1,226,978

6. Short-term investments (Tabl

6. Short-term investments (Tables)	12 Months Ended
	Dec. 31, 2020
Short term investment [absract]
Schedule of short-term investments	Weighted average rate (p.a.) 2020 2019 Local currency Government bonds 72.7% of CDI 22,465 56,532 Investment funds 77.7% of CDI 603,698 862,868 Total local currency 626,163 919,400 Foreign currency Deposits with banks 0.6% 2,415 1,713 Government bonds - - 29,684 Investment funds 0.6% 757 2,965 Total foreign currency 3,172 34,362 Total 629,335 953,762

7. Restricted cash (Tables)

7. Restricted cash (Tables)	12 Months Ended
	Dec. 31, 2020
Restricted cash [absract]
Schedule of restricted cash	Weighted average rate (p.a.) 2020 2019 Local currency Import financing 96.6% of CDI 213,153 138,164 Letter of guarantee - Legal proceedings 85.8% of CDI 56,440 85,351 Letter of credit – Maintenance deposit 97.9% of CDI 155,184 136,438 Collateral for working capital lines of credit 99.9% of CDI 52,927 9,922 Total local currency 477,704 369,875 Foreign currency Collateral for financing with Ex-lm Bank 0.2% 31,206 - Escrow deposits for hedge margin - 35,697 74,431 Total foreign currency 66,903 74,431 Total 544,607 444,306 Current 355,769 304,920 Non-current 188,838 139,386

8. Trade receivables (Tables)

8. Trade receivables (Tables)	12 Months Ended
	Dec. 31, 2020
Trade receivable [absract]
Schedule of trade receivables	2020 2019 Local currency Credit card administrators 318,869 740,967 Travel agencies 266,086 253,494 Cargo agencies 29,902 33,677 Airline partner companies 8,877 291 Other 13,845 15,690 Total local currency 637,579 1,044,119 Foreign currency Credit card administrators 77,616 121,844 Travel agencies 13,960 36,845 Cargo agencies 122 1,384 Airline partner companies 19,464 30,740 Other 9,005 11,550 Total foreign currency 120,167 202,363 Total 757,746 1,246,482 Allowance for expected loss on trade receivables accounts (18,047) (16,952) Total trade receivables 739,699 1,229,530
Schedule of aging list of trade receivables	The aging list of trade receivables, net of allowance for expected loss on trade receivables accounts, is as follows: 2020 2019 Not yet due Until 30 days 459,338 567,567 31 to 60 days 88,893 213,334 61 to 90 days 33,121 100,478 91 to 180 days 54,832 187,883 181 to 360 days 41,484 76,902 Above 360 days 256 1,499 Total not yet due 677,924 1,147,663 Overdue Until 30 days 10,278 47,959 31 to 60 days 21,677 23,290 61 to 90 days 13,501 3,986 91 to 180 days 11,474 3,009 181 to 360 days 785 421 Above 360 days 4,060 3,202 Total overdue 61,775 81,867 Total 739,699 1,229,530
Schedule of changes in allowance for doubtful accounts	The changes in an expected loss on trade receivables are as follows: 2020 2019 Balance at the beginning of the year (16,952) (11,284) (Additions) and Exclusions (1,095) (13,499) Unrecoverable Amounts - 7,831 Balances at the end of the year (18,047) (16,952)

9. Inventories (Tables)

9. Inventories (Tables)	12 Months Ended
	Dec. 31, 2020
Inventories [absract]
Schedule of inventories	2020 2019 Consumables 14,533 14,274 Parts and maintenance materials 181,105 184,939 Total 195,638 199,213
Schedule of changes in the provision for obsolescence	The changes in the provision for obsolescence are as follows: 2020 2019 Balances at the beginning of the year (14,302) (12,808) Additions (702) (2,168) Write-offs 2,142 674 Balances at the end of the year (12,862) (14,302)

10. Advance to suppliers and _2

10. Advance to suppliers and third parties (Tables)	12 Months Ended
	Dec. 31, 2020
Advance to Suppliers and Third Parties [abstract]
Schedule of advance to suppliers and third parties	2020 2019 Advance to domestic suppliers 290,664 95,596 Advances to international suppliers 68,873 25,316 Advance for materials and repairs 48,933 48,930 Other advances - 20,883 Total advances to suppliers 408,470 190,725 Current 318,769 142,338 Non-current 89,701 48,387

11. Recoverable taxes (Tables)

11. Recoverable taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Taxes [abstract]
Schedule of recoverable taxes	2020 2019 IRPJ and CSLL prepayments 109,231 195,864 Withholding income tax - 3,969 PIS and COFINS to recover (*) 387,033 273,152 Value added tax (VAT) abroad 3,998 4,650 Other 5,097 6,181 Total 505,359 483,816 Current 186,955 309,674 Non-current 318,404 174,142 (*) During the fiscal year ended December 31, 2020, the subsidiary GLA recorded PIS and COFINS extemporaneous tax credits, in the total amount of R$126,675. As of December 31, 2019, the subsidiaries Smiles Fidelidade and GLA calculated out-of-date PIS and COFINS credits, totaling R$49,518 and R$91,066, respectively.

12. Deferred taxes (Tables)

12. Deferred taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Deferred Taxes [abstract]
Schedule of deferred tax assets (liabilities) - noncurrent	The positions of deferred assets and liabilities are presented below and comply with the enforceable offset legal rights that consider taxes levied by the same tax authority under the same tax entity. December 31, 2019 Statement of operations Shareholders’ Equity and Others (*) December 31, 2020 Deferred assets Income tax losses carry forward 42,795 (5,186) 312 37,921 Negative basis of social contribution 14,360 (710) - 13,650 Temporary differences: Allowance for expenses loss on trade receivables and other credits 1,958 46 - 2,004 Provision for legal proceedings and tax liabilities 696 (779) - (83) Others - 15 56 71 Total deferred taxes – assets 59,809 (6,614) 368 53,563 Deferred liabilities Temporary differences: Derivative transactions (42,154) 13,252 - (28,902) Breakage provision (196,206) 2,708 - (193,498) Slots (353,226) - - (353,226) Depreciation of engines and parts for aircraft maintenance (183,977) (10,812) - (194,789) Reversal of goodwill amortization for tax purposes (127,659) - - (127,659) Allowance for expenses loss on trade receivables and other credits 200,088 1,358 - 201,466 Provision for legal proceedings and tax liabilities 91,051 33,672 - 124,723 Provisions for aircrafts redelivery 146,239 44,539 - 190,778 Aircraft leases and others 64,379 (53,793) - 10,586 Unrealized profits 68,111 1,732 - 69,843 Others 89,313 (8,463) 214 81,064 Total deferred taxes – liabilities (244,041) 24,193 214 (219,634) Total Effect of deferred taxes - Income (Expenses) - 17,579 - - (*) Exchange rate change recognized in other comprehensive income (expenses).
Schedule of tax losses and negative social contribution	The direct subsidiary GLA has tax losses and negative bases of social contribution in the determination of taxable profit, to be offset against 30% of future annual tax profits, with no prescription period, not recorded in the balance sheet, in the following amounts: GLA 2020 2019 Acumulated income tax losses 8,401,388 5,017,227 Negative basis of social contribution 8,401,388 5,017,227 Potential tax credit 2,856,472 1,705,857
Schedule of estimates that deferred tax credits	Management estimates that deferred tax credits, recorded on tax losses and negative social contribution basis, will be realized as follows: Year Amount 2021 1,438 2022 9,128 2023 12,657 2024 13,191 2025 to 2030 15,157 Total 51,571
Schedule of reconciliation of income taxes expense	The reconciliation of effective income tax and social contribution rates for the fiscal year ended on December 31, 2020, 2019 and 2018 is as follows: 2020 2019 2018 Income (loss) before income tax and social contribution (5,817,293) 388,945 (482,596) Combined tax rate 34% 34% 34% Income at the statutory tax rate 1,977,880 (132,241) 164,083 Adjustments to calculate the effective tax rate: Equity method investees (149) 26 132 Tax rate difference on results of offshore subsidiaries (4,734) (207,565) 201,043 Non-deductible expenses, net (124,577) (61,219) 161,815 Exchange rate change on foreign investments (174,151) (101,329) (173,964) Interest on shareholders’ equity 8,693 8,212 6,998 Extemporaneous tax credit - 31,942 - Deferred tax assets (liabilities) net recognized (1,760,920) 252,567 (653,343) Use of tax credits in non-recurring installment Payments - - (3,892) Total income tax (77,958) (209,607) (297,128) Income tax and social contribution Current (95,537) (178,621) (52,139) Deferred 17,579 (30,986) (244,989) Total income (loss) taxes (77,958) (209,607) (297,128)

13. Deposits (Tables)

13. Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Deposits from customers [abstract]
Schedule of deposits	2020 2019 Court deposits 667,565 841,746 Maintenance deposits 1,032,418 830,282 Deposits in guarantee for leases agreements 358,472 296,327 Total 2,058,455 1,968,355

14. Investments (Tables)

14. Investments (Tables)	12 Months Ended
	Dec. 31, 2020
DisclosureOfSeasonalityTextBlock
Schedule of investees and the changes in the investments balance	The investment information is shown below: 2020 2019 Relevant investment information in Trip Capital stock 1,318 1,318 Interest 60.00% 60.00% Total equity 1,359 2,103 Adjusted equity (a) 815 1,254 Net income for the year (732) 129 Net income for the year attributable to the company’s interest (439) 77
Schedule of disposal of equity interest	14.2. Changes in investments Trip Balances on December 31, 2018 1,177 Equity method results 77 Balances on December 31, 2019 1,254 Equity method results (439) Balances on December 31, 2020 815

15. Property, plant and equip_2

15. Property, plant and equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [abstract]
Schedule of composition of property, plant and equipment	Weighted average rate (p.a.) 2019 Additions and contractual amendments Disposals (6) Transfers 2020 Flight equipment Cost Aircraft - ROU (1) (5) 660,256 - (660,256) - - Aircraft - ROU with no purchase option 3,561,980 704,253 (245,524) - 4,020,709 Spare parts and engines – Own (7) (8) 1,764,295 206,253 (5,887) (250) 1,964,411 Spare parts and engines – ROU 109,977 (15,296) (10,352) - 84,329 Aircraft and engine improvements 3,084,023 351,386 (229,024) - 3,206,385 Tools 53,454 2,311 (194) 250 55,821 9,233,985 1,248,907 (1,151,237) - 9,331,655 Depreciation Aircraft - ROU with purchase option (5) (226,433) (2,935) 229,368 - - Aircraft - ROU with no purchase option 16.52% (719,377) (783,678) 82,407 - (1,420,648) Spare parts and engines – Own (7) (8) 7.13% (706,381) (133,806) 3,139 - (837,048) Spare parts and engines – ROU 25.59% (26,745) (30,274) 9,079 - (47,940) Aircraft and engine improvements 44.20% (1,717,552) (780,054) 215,564 - (2,282,042) Tools 10.00% (24,712) (4,148) 163 - (28,697) (3,421,200) (1,734,895) 539,720 - (4,616,375) Total Net - Flight equipment 5,812,785 (485,988) (611,517) - 4,715,280 Property, plant and equipment in use Cost Vehicles 11,681 159 (576) - 11,264 Machinery and equipment 63,091 888 (1,138) - 62,841 Furniture and fixtures 32,983 1,386 (1,579) - 32,790 Computers and peripherals - Own 45,732 2,863 (1,108) - 47,487 Computers and peripherals – ROU 21,992 - - - 21,992 Communication equipment 2,548 8 (323) - 2,233 Security equipment 856 - (801) - 55 Third-party property improvements - CMA (3) 107,637 - - - 107,637 Third-party property improvements 71,174 330 - 4,210 75,714 Third-party properties - ROU 22,354 5,583 (70) - 27,867 Construction in progress 17,906 1,141 - (4,210) 14,837 397,954 12,358 (5,595) - 404,717 Depreciation Vehicles 20.00% (9,291) (595) 314 - (9,572) Machinery and equipment 10.00% (45,437) (4,045) 1,065 - (48,417) Furniture and fixtures 10.00% (19,908) (2,088) 1,513 - (20,483) Computers and peripherals - Own 20.00% (33,190) (3,740) 1,093 - (35,837) Computers and peripherals – ROU 35.26% (7,682) (7,778) - - (15,460) Communication equipment 10.00% (2,081) (95) 305 - (1,871) Security equipment 10.00% (615) (3) 586 - (32) Third-party property improvements - CMA 12.05% (102,675) (4,962) - - (107,637) Third-party property improvements 20.31% (39,039) (10,289) - - (49,328) Third-party properties - ROU 35.57% (7,156) (8,748) 70 - (15,834) (267,074) (42,343) 4,946 - (304,471) Total net - Property, plant and equipment in use 130,880 (29,985) (649) - 100,246 Impairment losses (2) - (41,719) 7,389 - - (34,328) Total 5,901,946 (508,584) (612,166) - 4,781,196 Advances to suppliers (4) - 156,155 96,537 (73,600) - 179,092 Total Property, plant and equipment 6,058,101 (412,047) (685,766) - 4,960,288 (1) ROU - Right of Use (2) Refers to provisions for impairment losses for rotable items (spare parts), classified under “Parts and spare engines", recorded by the Company in order to present its assets according to the actual capacity for the generation of expected future benefits. (3) CMA - Maintenance Center - Confins/MG (4) The write-off refers to PDP return, as mentioned in note 1.3. (5) Write-off resulting from the sale-leaseback transaction, see Note 18.1. (6) The amounts are composed of sales and write-offs. (7) As of December 31, 2020, the balance of spare parts is granted as a guarantee to Secured Notes 2026, according to note 17. (8) As of December 31, 2020, 19 engines of the Company are granted as a guarantee to the Spare Engine Facility and the Loan Facility, according to note 17.

16. Intangible assets (Tables)

16. Intangible assets (Tables)	12 Months Ended
	Dec. 31, 2020
Intangible assets [absract]
Schedule of breakdown of and changes in intangible assets	Weighted average rate (p.a.) 2019 Additions Write-off 2020 Cost Goodwill - 542,302 - - 542,302 Slots - 1,038,900 - - 1,038,900 Software - 579,370 63,993 (135,629) 507,734 Others - 10,000 - - 10,000 Total Cost 2,170,572 63,993 (135,629) 2,098,936 Amortization Software 25.73% (389,730) (91,314) 135,383 (345,661) Others 20.00% (4,167) (2,000) - (6,167) Total Amortization (393,897) (93,314) 135,383 (351,828) Intangible Assets, Net 1,776,675 (29,321) (246) 1,747,108
Schedule of allocation of goodwill	The Company allocates goodwill to two cash-generating units: GLA and Smiles, and the slots are fully allocated to GLA’s cash-generating unit, as shown below. The results obtained were compared with the carrying amount of each cash-generating unit and, as a result, the Company did not recognize impairment losses on its CGUs. Goodwill Slots GLA Smiles December 31, 2020 Book value 325,381 216,921 1,038,900 Value in use 20,784,520 6,771,424 21,064,362 Discount rate 13.98% 14.72% 12.20% Perpetuity growth rate 3.25% 3.25% 3.25% December 31, 2019 Book value 325,381 216,921 1,038,900 Book value – UGC 3,615,949 161,669 3,615,949 Value in use 26,543,428 6,061,994 21,373,789 Discount rate 12.20% 12.07% 12.85% Perpetuity growth rate 3.55% 3.55% 3.53%

17. Loans and financing (Tables

17. Loans and financing (Tables)	12 Months Ended
	Dec. 31, 2020
Loans And Financing
Schedule of breakdown of and changes in short and long-term debt	The breakdown of and changes in short and long-term loans and financing are as follows: 2019 2020 Maturity Interest Rate p.a. Current Non-current Total Funding Unrealized gain (loss) from ESN Payments Interest incurred Interest paid Exchange rate change Amortization of costs and premium Current Non-current Total In R$: Working capital – Lines of credit (a) 10/2025 6.48% - - - 704,172 - (450,532) 20,261 (17,011) - - 239,615 17,275 256,890 Debentures VII (b) 03/2022 3.41% (3) 289,423 289,302 578,725 - - - 25,936 (23,638) - 6,065 440,918 146,170 587,088 In US$: Term loan B (c) 08/2020 6.50% 1,229,600 - 1,229,600 - - (1,641,390) 65,382 (97,632) 437,942 6,098 - - - Import financing (d) 06/2021 5.63% 663,979 - 663,979 25,974 - (103,238) 41,326 (45,856) 201,474 - 783,659 - 783,659 Secured funding (e) 12/2021 9.50% - - - 1,367,825 - (833,171) 36,749 (36,366) (50,924) - 484,113 - 484,113 Senior notes 2022 (f) 01/2022 8.88% 12,102 313,267 325,369 - - (405,878) 7,052 (20,695) 92,730 1,422 - - - Financing with Ex-lm Bank collateral (g) 12/2022 0.92% 180,812 76,395 257,207 124,074 - (216,829) 5,488 (4,469) 71,877 7,396 194,786 49,958 244,744 ESN (1) 07/2024 3.75% 29,443 1,753,526 1,782,969 - (374,994) - 178,414 (75,486) 424,327 (416) 37,960 1,896,854 1,934,814 Spare engine facility (i) 09/2024 2.56% 17,551 201,084 218,635 - - (63,482) 8,957 (9,282) 64,670 282 22,771 197,009 219,780 Senior notes 2025 (j) 01/2025 7.00% 75,587 2,548,472 2,624,059 37,322 - - 235,588 (215,506) 751,423 5,951 98,521 3,340,316 3,438,837 Secured notes 2026 (k) 06/2026 8.00% - - - 952,509 - - 1,828 - 20 1,293 1,848 953,802 955,650 Loan facility (l) 03/2028 4.73% 31,727 150,821 182,548 59,949 - (33,719) 11,974 (8,969) 53,681 237 32,566 233,135 265,701 Perpetual bonds (2) - 8.75% 12,815 533,935 546,750 99,135 - - 60,035 (60,117) 159,887 - 16,522 789,168 805,690 Total 2,543,039 5,866,802 8,409,841 3,370,960 (374,994) (3,748,239) 698,990 (615,027) 2,207,107 28,328 2,353,279 7,623,687 9,976,966 (1) Exchangeable Senior Notes see Note 33.2. (2) It includes the elimination of related parties, considering securities of this issue, carried out by Gol Finance, held by GLA on December 31, 2020, totaling R$10,609 (R$86,393 on December 31, 2019). (3) During the fiscal year ended on December 31, 2020, after Split there was division into three series: Series 1 with a CDI rate of 120%; Series 2 with CDI rate + 5.40% and Series 3 with CDI rate + 3.50%. (a) Issuance of transactions with the purpose maintaining and managing the Company's working capital. (b) Issuance of 88,750 debentures by GLA on October 22, 2018 for early settlement of the Debentures VI. (c) Term Loan raised by Gol Finance on August 31, 2016 for aircraft purchases and bank repayment of loans, with backstop guarantee from Delta Airlines. (d) Credit lines with private banks used to finance the import of spare parts and aeronautical equipment. The interest rates negotiated are Libor 3m + 4.40% p.a. and Libor 1m + 3.25% p.a. (e) Backed financing raised by the subsidiary Gol Finance on August 31, 2020, with Delta Airlines, backed by Smiles’ shares and other assets, maturing on December 30, 2021. (f) Issuance of Senior Notes 2022 by the subsidiary Gol Finance on September 24, 2014, to renegotiate the Company's indebtedness. (g) Financing to perform engine maintenance services with Ex-Im Bank guarantee with an average rate of 0.81% p.a., in four transactions, with three transaction maturing in 2021 and one transaction maturing in 2022. (h) Issuance of Exchangeable Senior Notes (“ESN”) by the subsidiary Gol Finance in March, April and July 2019, totaling US$425 million maturing in 2024. (i) Loan backed by the Company's own engines, maturing in 2024. (j) Issuance of Senior Notes 2025 by the subsidiary Gol Finance on December 11, 2017 and February 2, 2018, to repurchase Senior Notes and general purposes of the Company. (k) Issuance of Secured Notes 2026 by the subsidiary Gol Finance on December 23, 2020 totaling US$200 million, maturing in 2026. (l) Loans with a guarantee of 5 engines in total, made on June 28, 2018. The contracted rates vary between Libor 6m + 2.35% p.a. until Libor 6m + 4.25% p.a. (m) Issuance of Perpetual Notes by Gol Finance on April 5, 2006 to finance aircraft purchase.
Schedule of working capital lines of credit	These transactions have as purpose maintaining and managing the company's working capital. Information on such financing is presented below: Date - Amount Interest Date - Transaction (R$ thousand) Rate (p.a.) Maturity New Funding April 20, 2020 21,195 8.52% July 20, 2020 April 20, 2020 72,000 10.03% July 20, 2020 April 20, 2020 94,830 8.99% August 18, 2020 May 8, 2020 147,871 CDI + 6.9% August 7, 2020 May 11, 2020 10,013 8.60% August 10, 2020 May 13, 2020 24,000 CDI + 8% March 12, 2021 May 15, 2020 254,468 CDI + 2.5% November 9, 2020 October 7, 2020 59,795 8.58% December 7, 2020 October 23, 2020 10,000 6.90% October 23, 2025 November 26, 2020 10,000 10.69% May 19, 2023 Total 704,172 Renegotiations April 20, 2020 94,830 8.99% August 18, 2020 May 8, 2020 105,903 CDI + 6.9% August 7, 2020 June 18, 2020 21,195 8.52% August 20, 2020 July 7, 2020 110,903 CDI + 6.9% August 7, 2020 July 20, 2020 50,000 10.03% November 17, 2020 August 7, 2020 44,361 CDI + 6.9% November 5, 2020 August 10, 2020 10,013 8.60% September 30, 2020 August 18, 2020 94,830 8.99% September 30, 2020 August 31, 2020 114,666 CDI + 2.50% March 15, 2021 September 2, 2020 37,640 10.03% December 1, 2020 September 30, 2020 94,830 8.99% December 15, 2020 September 30, 2020 10,013 8.60% December 15, 2020 December 7, 2020 59,795 8.58% March 5, 2021 December 15, 2020 94,830 8.99% March 15, 2021 December 15, 2020 10,013 8.60% March 15, 2021 Total 953,822
Schedule of import financing	Which are part of a credit line maintained by GLA for engine maintenance, import financing in order to purchase spare parts and aircraft equipment. Information on such financing is presented below: Date - Amount Interest Date - Transaction (US$ thousand) (R$ thousand) Rate (p.a.) Maturity New Funding February 19, 2020 5,920 25,974 4.07% February 13, 2021 Renegotiations January 2, 2020 4,335 18,508 5.79% June 30, 2020 January 14, 2020 4,571 19,516 6.22% May 13, 2020 January 17, 2020 6,455 27,560 5.71% July 15, 2020 January 21, 2020 8,595 36,696 6.22% May 20, 2020 January 24, 2020 4,815 20,558 4.17% January 15, 2021 January 31, 2020 5,925 25,297 5.63% July 29, 2020 February 14, 2020 7,069 31,801 5.59% August 12, 2020 February 21, 2020 6,531 29,381 5.56% August 19, 2020 April 16, 2020 10,400 56,441 4.14% June 16, 2020 April 22, 2020 5,407 29,344 8.60% August 20, 2020 April 22, 2020 7,711 41,848 5.65% October 19, 2020 April 22, 2020 6,053 32,850 5.65% October 19, 2020 April 24, 2020 9,347 50,726 8.52% August 24, 2020 May 13, 2020 4,571 19,516 7.93% September 10, 2020 May 20, 2020 5,148 21,979 7.87% September 17, 2020 May 29, 2020 7,195 39,042 5.12% November 25, 2020 June 8, 2020 9,638 52,778 4.95% November 5, 2020 June 8, 2020 7,823 42,839 4.29% October 6, 2020 June 8, 2020 10,436 57,148 4.95% November 5, 2020 June 8, 2020 6,990 38,277 4.29% October 6, 2020 June 8, 2020 7,045 38,578 4.95% November 5, 2020 June 15, 2020 735 4,025 4.98% December 14, 2020 June 16, 2020 10,400 56,441 4.29% October 14, 2020 June 30, 2020 4,335 18,508 4.92% December 29, 2020 July 15, 2020 6,455 27,560 4.87% January 11, 2021 July 29, 2020 5,925 25,297 4.85% January 25, 2021 August 12, 2020 7,069 31,801 4.32% September 25, 2020 August 14, 2020 3,396 18,581 3.84% January 8, 2021 August 19, 2020 6,531 29,381 4.30% October 2, 2020 August 20, 2020 5,407 29,344 7.75% December 18, 2020 August 24, 2020 9,347 50,726 7.76% December 22, 2020 September 10, 2020 4,571 19,516 7.75% January 8, 2021 September 17, 2020 5,148 21,979 7.75% January 15, 2021 September 25, 2020 7,069 31,801 4.35% December 15, 2020 October 2, 2020 6,531 29,381 4.36% December 15, 2020 October 6, 2020 7,823 42,839 2.93% January 4, 2021 October 6, 2020 6,990 38,277 2.93% January 4, 2021 October 14, 2020 10,400 56,441 2.92% January 9, 2021 October 19, 2020 7,711 41,848 4.74% December 15, 2020 October 19, 2020 6,053 32,850 4.74% December 15, 2020 November 5, 2020 9,638 52,778 2.92% February 3, 2021 November 5, 2020 10,436 57,148 2.92% February 3, 2021 November 5, 2020 7,045 38,578 2.92% February 3, 2021 November 12, 2020 6,668 35,554 2.91% February 10, 2021 November 25, 2020 7,195 39,042 4.42% December 15, 2020 December 14, 2020 735 4,025 4.76% March 15, 2021 December 15, 2020 6,531 29,381 4.54% March 15, 2021 December 15, 2020 7,711 41,848 4.54% March 15, 2021 December 15, 2020 6,053 32,850 4.54% March 15, 2021 December 15, 2020 7,195 39,042 4.54% March 15, 2021 December 15, 2020 7,069 31,801 4.54% March 15, 2021 December 18, 2020 5,407 29,344 7.76% June 16, 2021 December 22, 2020 9,347 50,726 7.76% June 21, 2021 December 29, 2020 4,335 18,508 4.78% March 29, 2021 Total 363,321 1,837,904
Schedule of Secured funding	In August 2020, the Company obtained a bilateral financing from Delta Airlines backed by Smiles shares and other assets totaling US$250 million, corresponding to R$1,367,825 on the funding date. Date - Principal Interest Date - Transaction (US$ thousand) (R$ thousand) Rate (p.a.) Maturity August 31, 2020 250,000 1,367,825 9.50% December 30, 2021
Schedule of financing with ex-im bank collateral	In June 2020, the Company, through its subsidiary GLA, made the following fundraising with restricted cash (Note 7) assigned as guarantee: Date - Principal Costs Interest Date - Transaction (US$ thousand) (R$ thousand) (US$ thousand) (R$ thousand) Rate (p.a.) Maturity June 19, 2020 25,000 129,263 1,003 5,189 Libor 6M + 0.6% December 23, 2022
Schedule of secured notes	In December 2020, the Company issued Secured Senior Notes maturing in June 2026 and backed by fiduciary sales of certain assets: (i) substantially all the Company's intellectual property, including patents, trademarks, brand names and domains; and (ii) GLA aircraft’s spare parts. Date - Principal Costs Interest Date - Transaction (US$ thousand) (R$ thousand) (US$ thousand) (R$ thousand) Rate (p.a.) Maturity December 23, 2020 200,000 1,039,340 16,750 86,831 8.00% p.a. June 30, 2026
Schedule of loan facility	In March 2020, the Company, through its subsidiary GLA, obtained funding with guarantee of the Company’s own engines. Information on such financing is presented below: Date - Principal Costs Interest Date - Transaction (US$ thousand) (R$ thousand) (US$ thousand) (R$ thousand) Rate (p.a.) Maturity March 20, 2020 12,000 60,847 177 898 Libor 1M + 3.33% March 20, 2028
Schedule of long term loan and financing	On December 31, 2020, the maturities of loans and financing recorded in non-current liabilities were as follows: 2022 2023 2024 2025 2025 onwards Without maturity date Total In R$: Working capital – Lines of credit 7,543 4,752 2,500 2,480 - - 17,275 Debentures VII 146,170 - - - - - 146,170 In US$: Financing with Ex-lm Bank collateral 49,958 - - - - - 49,958 ESN - - 1,896,854 - - - 1,896,854 Spare engine facility 23,075 23,075 150,859 - - - 197,009 Senior notes 2025 - - - 3,340,316 - - 3,340,316 Secured notes 2026 - - - - 953,802 - 953,802 Loan facility 30,936 31,961 33,039 34,197 103,002 - 233,135 Perpetual bonds - - - - - 789,168 789,168 Total 257,682 59,788 2,083,252 3,376,993 1,056,804 789,168 7,623,687
Schedule of fair value of debt	The fair value of loans and financing as of December 31, 2020, is as follows: Book value (*) Fair value Debentures 587,088 591,666 Secured funding 484,113 484,113 ESN 1,934,814 1,948,441 Perpetual bonds, Senior notes and Secured notes 5,200,177 4,903,902 Other loans and financing 1,770,774 1,770,774 Total 9,976,966 9,698,896 (*) Net Total of Funding Costs.

18. Leases (Tables)

18. Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [abstract]
Schedule of leases	The breakdown and changes in the present value of future lease payments are shown below: 2019 2020 Weighted average rate (p.a.) Current Non-current Total Additions Write-offs Contractual amendment Payments Deposit in guarantee Interest incurred Interest paid Exchange rate change Current Non-current Total In R$: Leases without purchase option 13.11% 21,781 23,026 44,807 5,189 - 399 (15,044) - 12,164 - - 32,530 14,985 47,515 Total 21,781 23,026 44,807 5,189 - 399 (15,044) - 12,164 - - 32,530 14,985 47,515 In US$: Leases with purchase option 3.72% 128,936 419,894 548,830 - (618,486) - (26,049) - 4,592 (4,530) 95,643 - - - Leases without purchase option 12.03% 1,253,995 4,205,148 5,459,143 449,059 (85,678) 220,849 (1,017,599) (44,736) 801,773 - 1,737,614 1,268,226 6,252,199 7,520,425 Total 1,382,931 4,625,042 6,007,973 449,059 (704,164) 220,849 (1,043,648) (44,736) 806,365 (4,530) 1,833,257 1,268,226 6,252,199 7,520,425 Total Leases 1,404,712 4,648,068 6,052,780 454,248 (704,164) 221,248 (1,058,692) (44,736) 818,529 (4,530) 1,833,257 1,300,756 6,267,184 7,567,940
Schedule of future payments of financial lease agreements	The future payments of leases liabilities agreements are detailed as follows: Without purchase option With purchase option 2020 2019 2019 2020 - 1,691,357 148,613 2021 2,102,771 1,324,403 148,744 2022 1,982,685 1,125,060 207,654 2023 1,642,264 904,627 72,801 2024 1,260,405 651,245 11,279 Thereafter 3,720,405 1,287,742 5,551 Total minimum lease payments 10,708,530 6,984,434 594,642 Less total interest (3,124,338) (1,480,484) (45,812) Present value of minimum lease payments 7,584,192 5,503,950 548,830 Less current portion (1,317,008) (1,275,776) (128,936) Non-current portion 6,267,184 4,228,174 419,894

19. Suppliers (Tables)

19. Suppliers (Tables)	12 Months Ended
	Dec. 31, 2020
Suppliers Abstract
Schedule of suppliers	2020 2019 Local currency 1,164,193 833,781 Foreign currency 481,001 462,636 Total 1,645,194 1,296,417 Current 1,612,536 1,286,275 Non-current 32,658 10,142

21. Taxes payable (Tables)

21. Taxes payable (Tables)	12 Months Ended
	Dec. 31, 2020
Taxes payable [absract]
Schedule of taxes payable	2020 2019 PIS and COFINS 23,647 39,133 Installment payments - PRT and PERT (*) 41,641 2,117 Withholding income tax on salaries 33,011 54,649 ICMS 472 424 IRPJ and CSLL payable 13 9,496 Other 7,192 10,788 Total 105,976 116,607 Current 73,614 116,523 Non-current 32,362 84 (*) In the fiscal year ended December 31, 2020, the Company made the installment of PIS and COFINS contributions in the ordinary amount totaling R$43,945, for a period of 60 months, having already paid this year the total of R$4,443, including interest.

23. Mileage program (Tables)

23. Mileage program (Tables)	12 Months Ended
	Dec. 31, 2020
Mileage Program Abstract
Schedule of mileage program	2020 2019 Mileage program 2,145,097 1,755,985 Others 5,817 1,764 Breakage (569,952) (577,075) Total 1,580,962 1,180,674 Current 1,258,502 1,009,023 Non-current 322,460 171,651

24. Provisions (Tables)

24. Provisions (Tables)	12 Months Ended
	Dec. 31, 2020
Provisions [abstract]
Schedule of provisions	Post-employment benefits Aircraft and engine return Legal proceedings (a) Total Balances on December 31, 2019 96,760 869,078 291,218 1,257,056 Recognition (reversal) of provision 10,136 (58,702) 288,803 240,237 Provisions used - (113,805) (187,491) (301,296) Changing of assumptions (24,541) - - (24,541) Plan experience 10,706 - - 10,706 Adjustment to present value 6,488 67,609 - 74,097 Exchange rate change - 266,735 (98) 266,637 Balances on December 31, 2020 99,549 1,030,915 392,432 1,522,896 On December 31, 2020 Current - 169,381 - 169,381 Non-current 99,549 861,534 392,432 1,353,515 Total 99,549 1,030,915 392,432 1,522,896 On December 31, 2019 Current - 203,816 - 203,816 Non-current 96,760 665,262 291,218 1,053,240 Total 96,760 869,078 291,218 1,257,056 (a) The provisions used consider write-offs due to the revaluation of estimates and settled processes.
Schedule of changes in actuarial assets and liabilities related to the post-employment benefit	The actuarial assumptions applied when measuring the post-employment benefit are presented below: Actuarial assumptions 2020 2019 Weighted average of assumptions to determine the defined benefit obligation Nominal discount rate p.a. 7.88% 7.23% Actual discount rate p.a. 4.23% 3.60% Long-term estimated inflation rate p.a. 3.00% 3.50% HCCTR - Nominal medical inflation rate p.a. 6.35% 6.86% HCCTR - Actual medical inflation rate p.a. 3.25% 3.25% Mortality table AT-2000 with improvement of 10% AT-2000 with improvement of 10% Weighted average of assumptions to determine the cost (revenue) of the defined benefit Nominal discount rate 7.23% 9.93% Actual discount rate p.a. 4.23% 5.70% Long-term estimated inflation rate 3.50% 4.00% HCCTR - Nominal medical inflation rate p.a. 6.86% 7.38% HCCTR - Actual medical inflation rate p.a. 3.25% 3.25% Mortality table AT-2000 with improvement of 10% AT-2000 with improvement of 10% 2020 Current service cost recognized in income (expenses) 10,136 Cost of interests recognized in income (expenses) 6,488 Total 16,624
Schedule of provisions related to civil and labor suits	The Company's Management believes that the provision for tax, civil and labor risks, recorded in accordance with IAS 37, is sufficient to cover possible losses on administrative and judicial proceedings, as shown below: Probable loss Possible loss 2020 2019 2020 2019 Civil 100,806 78,119 64,181 62,473 Labor 269,297 210,699 238,702 237,253 Tax 22,329 2,400 574,356 586,812 Total 392,432 291,218 877,239 886,538

25. Shareholders' equity (Table

25. Shareholders' equity (Tables)	12 Months Ended
	Dec. 31, 2020
Equity (deficit)
Schedule of shares	The Company’s shares are held as follows: 2020 2019 Common shares Preferred shares Total Common shares Preferred shares Total Fundo Volluto 100.00% - 22.99% 100.00% - 23.00% Mobi FIA - 37.57% 28.93% - 37.59% 28.94% AirFrance - KLM - 1.55% 1.19% - 1.55% 1.19% Others - 1.91% 1.47% - 2.23% 1.73% Market - 58.97% 45.41% - 58.63% 45.14% Total 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%

26. Earnings (loss) per share (

26. Earnings (loss) per share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings (loss) per share [absract]
Schedule of earnings (loss) per share	The Company's earnings (loss) per share was determined as follows: 2020 2019 2018 Common shares Preferred shares Total Common shares Preferred shares Total Common shares Preferred shares Total Numerator Net loss for the fiscal year attributed to controlling shareholders (1,377,078) (4,611,050) (5,988,128) (27,269) (90,004) (117,273) (254,828) (830,565) (1,085,393) Denominator Weighted average number of outstanding shares (in thousands) 2,863,683 273,967 2,863,683 270,053 2,863,683 266,676 Effect of dilution from stock options - - - - - - Adjusted weighted average number of outstanding shares and diluted presumed conversions (in thousands) 2,863,683 273,967 2,863,683 270,053 2,863,683 266,676 In Brazilian Real (R$) Basic loss per share (0.481) (16.831) (0.010) (0.333) (0.089) (3.115) Diluted loss per share (0.481) (16.831) (0.010) (0.333) (0.089) (3.115)

27. Share-based payments (Table

27. Share-based payments (Tables)	12 Months Ended
	Dec. 31, 2020
Stock option plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Schedule of stock options plan	Grant year Grant date Total options granted Number of options outstanding Exercise price of the option (in Reais) Fair value at grant date (in Reais) Estimated volatility of share price Expected dividend yield Risk-free return rate Average remaining maturity (in years) 2012 October 19, 2012 778,912 227,183 12.81 5.32 (a) 52.25% 2.26% 9.00% 1.7 2013 May 13, 2013 802,296 220,413 12.76 6.54 (b) 46.91% 2.00% 7.50% 2.3 2014 August 12, 2014 653,130 197,661 11.31 7.98 (c) 52.66% 3.27% 11.00% 3.5 2015 August 11, 2015 1,930,844 601,793 9.35 3.37 (d) 55.57% 5.06% 13.25% 4.5 2016 June 30, 2016 5,742,732 3,121,220 2.62 1.24 (e) 98.20% 6.59% 14.25% 5.4 2017 August 8, 2017 947,767 548,604 8.44 7.91 (f) 80.62% 1.17% 11.25% 6.6 2018 May 24, 2018 718,764 450,695 20.18 12.68 (g) 55.58% 0.60% 6.50% 7.4 2019 December 11, 2019 1,749,223 1,506,606 25.40 12.10 (h) 61.98% 3.17% 9.00% 8.8 2020 July 30, 2020 760,986 655,437 20.57 14.44(i) 71.37% 0.92% 6.24% 9.6 Total December 31, 2020 14,084,654 7,529,612 11.59 (a) The fair value is calculated by the average value from R$6.04, R$5.35 and R$4.56 for the respective vesting periods (2012, 2013 and 2014). (b) The fair value is calculated by the average value from R$7.34, R$6.58 and R$5.71 for the respective vesting periods (2013, 2014 and 2015). (c) The fair value is calculated by the average value from R$8.20, R$7.89 and R$7.85 for the respective vesting periods (2014, 2015 and 2016). (d) The fair value is calculated by the average value from R$3.61, R$3.30 and R$3.19 for the respective vesting periods (2015, 2016 and 2017). (e) On July 27, 2016, an additional grant of 900,000 shares referring to the 2016 plan was approved. The fair value was calculated by the average value from R$1.29, R$1.21 and R$1.22 for the respective vesting periods (2017, 2018 and 2019). (f) The fair value is calculated by the average value from R$8.12, R$7.88 and R$7.72 for the respective vesting periods (2017, 2018 and 2019). (g) The fair value is calculated by the average value from R$13.26, R$12.67 and R$12.11 for the respective vesting periods (2018, 2019 and 2020). (h) The fair value is calculated by the average value from R$12.90, R$12.32 and R$11.65 for the respective vesting periods (2019, 2020 and 2021).
Schedule of movement in the stock options outstanding	The movement in the stock options outstanding for the fiscal year ended December 31, 2020 is as follows: Number of stock options Weighted average exercise price Outstanding options on December 31, 2019 7,660,855 7.11 Options granted (*) 655,437 20.57 Options exercised (452,899) 4.09 Options canceled and adjustments in estimated prescribed rights (333,781) 22.06 Outstanding options on December 31, 2020 7,529,612 11.59 Number of options exercisable on: December 31, 2019 5,939,631 8.42 December 31, 2020 5,752,726 10.32 (*) Plan granted on July 30, 2020.
Restricted shares plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Schedule of stock options plan	The Company’s Restricted Stock Plan was approved at the Extraordinary Shareholders’ Meeting of October 19, 2012, and the first grants were approved at the Board of Directors’ Meeting of November 13, 2012. Grant year Approval date Total shares granted Total vested shares Average price at grant date 2016 June 30, 2016 4,007,081 - 2.62 2017 August 8, 2017 1,538,213 - 8.44 2018 May 24, 2018 773,463 513,314 20.18 2020 July 30, 2020 801,311 690,169 20.57 Total December 31, 2020 7,120,068 1,203,483
Schedule of movement in the stock options outstanding	The movement in the restricted shares for the fiscal year ended December 31, 2020 is as follows: Total Restricted Shares Restricted shares outstanding on December 31, 2019 1,533,996 Restricted shares granted 801,311 Shares transferred (*) (1,182,356) Restricted shares cancelled and adjustments in estimated expired rights 50,532 Restricted Shares Outstanding on December 31, 2020 1,203,483 (*) During the fiscal year ended on December 31, 2020, the Company transferred 1,182,356 shares via equity instruments (treasury shares).
Smiles S.A. ("Smiles") [member] | Stock option plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Schedule of stock options plan	The stock options vest 20% as from the first year, an additional 30% as from the second year, and the remaining 50% as from the third year. All stock options may also be exercised within 10 years after the grant date. For stock options granted, the expected volatility of the options is based on the historical volatility of 252 working days of the Company’s shares traded on the B3. Grant year Grant date Total options granted Number of options outstanding Exercise price of the option (in Reais) Average fair value at grant date Estimated volatility of share price Expected dividend yield Risk-free return rate Average remaining maturity (in years) 2013 August 8, 2013 1,058,043 - 21.70 4.25 (a) 36.35% 6.96% 7.40% 3.5 2014 February 4, 2014 1,150,000 - 31.28 4.90 (b) 33.25% 10.67% 9.90% 4.0 2018 July 31, 2018 1,300,000 975,000 48.42 8.93 (c) 41.28% 9.90% 6.39% 8.6 Total December 31, 2020 3,508,043 975,000 48.42 (a) Average fair value in Brazilian Reais calculated for the 2013 Stock Options was R$4.84 and R$4.20 for the vesting periods in 2013 and 2014, and R$3.73 for the vesting periods in 2015 and 2016. (b) Average fair value In Brazilian Reais calculated for the 2014 Stock Options was R$4.35, R$4.63, R$4.90, R$5.15 and R$5.37 for the respective vesting periods from 2014 to 2018. (c) Average fair value In Brazilian Reais calculated for the 2018 Stock Options was R$8.17, R$8.63, R$9.14 and R$9.77 for the respective vesting periods of 2019, 2020, 2021 and 2022.

28. Transactions with related_2

28. Transactions with related parties (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of transactions between related parties [abstract]
Schedule of remuneration of key management personnel	28.5. Compensation of key management personnel 2020 2019 2018 Salaries, wages and benefits (*) 35,147 69,609 75,979 Related taxes and charges 13,454 15,813 11,062 Share-based compensation 15,509 8,880 10,234 Total 64,110 94,302 97,275 (*) Includes payment for members of Management, audit committee, and fiscal council.

29. Revenue (Tables)

29. Revenue (Tables)	12 Months Ended
	Dec. 31, 2020
Net revenue
Schedule of detail of revenues	2020 2019 2018 Passenger transportation (*) 5,958,848 13,461,470 11,148,292 Cargo transportation 316,318 411,054 400,959 Mileage program 341,197 446,871 446,448 Other revenue 47,053 113,253 95,681 Gross revenue 6,663,416 14,432,648 12,091,380 Related tax (291,599) (567,944) (680,026) Net revenue 6,371,817 13,864,704 11,411,354 (*) Of the total amount, the total of R$252,730 for the fiscal year ended on December 31, 2020, is made up of the revenue from non-attendance of passengers, rescheduling, ticket cancellation (R$583,242 and R$479,136 2018, respectively
Schedule of detail of revenues by geographical location	Revenue by geographical location is as follows: 2020 % 2019 % 2018 % Domestic 5,642,471 88.6 11,965,181 86.3 9,729,498 85.3 International 729,346 11.4 1,899,523 13.7 1,681,856 14.7 Net revenue 6,371,817 100.0 13,864,704 100.0 11,411,354 100.0

30. Financial results (Tables)

30. Financial results (Tables)	12 Months Ended
	Dec. 31, 2020
Financial income (expenses) [absract]
Schedule of detail of financial results	2020 2019 2018 Financial income Gain on derivatives 59,669 84,862 17,838 Gains from financial investments 182,966 225,535 161,223 Inflation indexation 28,043 42,967 78,169 (-) Taxes on financial income (a) (38,553) (26,818) (20,372) Unrealized gains - conversion right - ESN 374,994 16,148 - Interest income - 7,451 - Other 129,850 39,418 22,870 Total financial income 736,969 389,563 259,728 Financial expenses Loss with derivatives (428,060) (86,990) (51,674) Derivative losses - capped call (74,728) (23,229) - Unrealized loss - conversion right (836,596) (778,557) (710,787) Bank charges and expenses (119,641) (73,171) (75,673) Exchange offer costs - - (53,952) Losses from financial investments (65,403) (111,679) (33,999) Interest on leases (818,529) (488,278) - Other (203,235) (186,361) (135,004) Total financial expenses (2,546,192) (1,748,265) (1,061,089) Foreign exchange rate change, net (3,056,226) (385,092) (1,081,197) Total (4,865,449) (1,743,794) (1,882,558) (a) Relative to taxes on Financial Revenues (PIS and COFINS), according to Decree 8,426 of April 1, 2015.

31. Segments (Tables)

31. Segments (Tables)	12 Months Ended
	Dec. 31, 2020
Segments [absract]
Schedule of operating segment	31.1. Assets and liabilities of the operating segments 2020 Flight transportation Smiles loyalty program Total reportable segments Eliminations Total Assets Current 2,059,655 2,453,838 4,513,493 (1,268,142) 3,245,351 Non-current 10,040,986 908,246 10,949,232 (1,380,447) 9,568,785 Total assets 12,100,641 3,362,084 15,462,725 (2,648,589) 12,814,136 Liabilities Current 9,975,367 1,502,179 11,477,546 (1,079,330) 10,398,216 Non-current 16,532,366 509,577 17,041,943 (858,964) 16,182,979 Total equity (deficit) (14,407,092) 1,350,328 (13,056,764) (710,295) (13,767,059) Total liabilities and deficit 12,100,641 3,362,084 15,462,725 (2,648,589) 12,814,136 2019 Flight transportation Smiles loyalty program Total reportable segments Eliminations Total Assets Current 3,243,363 2,763,448 6,006,811 (1,079,434) 4,927,377 Non-current 10,888,299 121,135 11,009,434 (638,365) 10,371,069 Total assets 14,131,662 2,884,583 17,016,245 (1,717,799) 15,298,446 Liabilities Current 9,941,112 1,321,534 11,262,646 (900,046) 10,362,600 Non-current 11,867,062 357,714 12,224,776 (183,513) 12,041,263 Total equity (deficit) (7,676,512) 1,205,335 (6,471,177) (634,240) (7,105,417) Total liabilities and deficit 14,131,662 2,884,583 17,016,245 (1,717,799) 15,298,446 31.2. Results of the operating segments 2020 Flight transportation Smiles loyaltyprogram (b) Total reportable segments Eliminations Total consolidated Net revenue Passenger (a) 5,555,546 - 5,555,546 227,777 5,783,323 Cargo and other (a) 340,237 - 340,237 (36,730) 303,507 Mileage program (a) - 572,916 572,916 (287,929) 284,987 Total net revenue 5,895,783 572,916 6,468,699 (96,882) 6,371,817 Operating costs and expenses Salaries, wages and benefits (1,675,183) (90,444) (1,765,627) (1) (1,765,628) Aircraft fuel (2,025,701) - (2,025,701) - (2,025,701) Landing fees (411,065) - (411,065) - (411,065) Aircraft, traffic and mileage servicing (639,903) (183,519) (823,422) 100,178 (723,244) Passenger service expenses (389,998) - (389,998) - (389,998) Sales and marketing (257,533) (57,225) (314,758) (9,427) (324,185) Maintenance, materials and repairs (335,868) - (335,868) - (335,868) Depreciation and amortization (1,841,975) (28,577) (1,870,552) - (1,870,552) Other income (expenses), net 524,882 (2,898) 521,984 1,035 523,019 Total operating costs and expenses (7,052,344) (362,663) (7,415,007) 91,785 (7,323,222) Equity results 99,278 - 99,278 (99,717) (439) Operating result before financial result, net and income tax and social contribution (1,057,283) 210,253 (847,030) (104,814) (951,844) Financial income (expenses) Financial income 719,560 89,503 809,063 (72,094) 736,969 Financial expenses (2,604,993) (13,295) (2,618,288) 72,096 (2,546,192) Total financial income (expenses) (1,885,433) 76,208 (1,809,225) 2 (1,809,223) Income before exchange rate variation, net (2,942,716) 286,461 (2,656,255) (104,812) (2,761,067) Exchange rate variation, net (3,058,275) 2,049 (3,056,226) - (3,056,226) Loss before income tax and social contribution (6,000,991) 288,510 (5,712,481) (104,812) (5,817,293) Income tax and social contribution 12,863 (92,553) (79,690) 1,732 (77,958) Net income for the year (5,988,128) 195,957 (5,792,171) (103,080) (5,895,251) Attributable to equity holders of the parent (5,988,128) 103,080 (5,885,048) (103,080) (5,988,128) Attributable to non-controlling interests of Smiles - 92,877 92,877 - 92,877 2019 Flight transportation Smiles loyalty program (b) Total reportable segments Eliminations Total consolidated Net revenue Passenger (a) 12,592,018 - 12,592,018 485,725 13,077,743 Cargo and other (a) 463,651 - 463,651 (38,563) 425,088 Mileage revenue (a) - 1,051,124 1,051,124 (689,251) 361,873 Total net revenue 13,055,669 1,051,124 14,106,793 (242,089) 13,864,704 Operating costs and expenses Salaries (2,270,009) (91,259) (2,361,268) - (2,361,268) Aircraft fuel (4,047,344) - (4,047,344) - (4,047,344) Landing fees (759,774) - (759,774) - (759,774) Aircraft, traffic and mileage servicing (766,483) (128,590) (895,073) 187,681 (707,392) Passenger service expenses (578,744) - (578,744) - (578,744) Sales and marketing (587,445) (82,947) (670,392) - (670,392) Maintenance, materials and repairs (569,229) - (569,229) - (569,229) Depreciation and amortization (1,701,115) (26,868) (1,727,983) 1 (1,727,982) Other income (expenses),net (354,302) 44,384 (309,918) 1 (309,917) Total operating costs and expenses (11,634,445) (285,280) (11,919,725) 187,683 (11,732,042) Equity results 294,976 (2,530) 292,446 (292,369) 77 Operating result before financial result, net and income tax and social contribution 1,716,200 763,314 2,479,514 (346,775) 2,132,739 Financial income (expenses) Financial income 636,554 125,455 762,009 (372,446) 389,563 Financial expenses (2,116,438) (4,273) (2,120,711) 372,446 (1,748,265) Total financial income (expenses) (1,479,884) 121,182 (1,358,702) - (1,358,702) Income before exchange rate variation, net 236,316 884,496 1,120,812 (346,775) 774,037 Exchange rate variation, net (390,454) 4,669 (385,785) 693 (385,092) Loss before income tax and social contribution (154,138) 889,165 735,027 (346,082) 388,945 Income tax and social contribution 36,865 (271,156) (234,291) 24,684 (209,607) Net income for the year (117,273) 618,009 500,736 (321,398) 179,338 Attributable to equity holders of the parent (117,273) 321,398 204,125 (321,398) (117,273) Attributable to non-controlling interests of Smiles - 296,611 296,611 - 296,611 2018 Flight transportation Smiles loyalty program (b) Total reportable segments Eliminations Total consolidated Net revenue Passenger (a) 10,199,092 - 10,199,092 434,396 10,633,488 Cargo and other (a) 422,432 - 422,432 (12,799) 409,633 Mileage program - 987,444 987,444 (619,211) 368,233 Total net revenue 10,621,524 987,444 11,608,968 (197,614) 11,411,354 Operating costs and expenses Salaries, wages and benefits (1,821,521) (82,331) (1,903,852) - (1,903,852) Aircraft fuel (3,867,673) - (3,867,673) - (3,867,673) Aircraft rente (1,112,837) - (1,112,837) - (1,112,837) Sales and marketing (507,721) (74,256) (581,977) - (581,977) Landing fees (743,362) - (743,362) - (743,362) Aircraft, traffic and mileage servicing (661,260) (107,489) (768,749) 154,981 (613,768) Maintenance, materials and repairs (570,333) - (570,333) - (570,333) Depreciation and amortization (651,158) (17,358) (668,516) - (668,516) Passenger service expenses (474,117) - (474,117) - (474,117) Other income (expenses), net 483,699 35,959 519,658 4,998 524,656 Total operating costs and expenses (9,926,283) (245,475) (10,171,758) 159,979 (10,011,779) Equity pick up method 315,721 - 315,721 (315,334) 387 Income before financial results, net and income tax and social contribution 1,010,962 741,969 1,752,931 (352,969) 1,399,962 Financial income (expenses) Financial income 166,348 220,628 386,976 (127,248) 259,728 Financial expenses (1,185,889) (2,326) (1,188,215) 127,126 (1,061,089) Total financial income (expenses) (1,019,541) 218,302 (801,239) (122) (801,361) Income before the exchange rate variation, net (8,579) 960,271 951,692 (353,091) 598,601 Exchange rate change, net (1,084,543) 3,223 (1,081,320) 123 (1,081,197) Income (loss) before income taxes (1,093,122) 963,494 (129,628) (352,968) (482,596) Income tax and social contribution 7,729 (317,652) (309,923) 12,795 (297,128) Net income (loss) for the year (1,085,393) 645,842 (439,551) (340,173) (779,724) Attributable to equity holders of the parent (1,085,393) 340,173 (745,220) (340,173) (1,085,393) Attributable to non-controlling Interests of Smiles - 305,669 305,669 - 305,669 (a) Eliminations are related to transactions between GLA and Smiles Fidelidade. (b) Amounts include Smiles S.A. and Smiles Fidelidade.

32. Commitments (Tables)

32. Commitments (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments [absract]
Schedule of approximate amount of firm orders	The approximate amount of firm orders in the current fiscal year considers an estimate of contractual discounts, and corresponds to around R$23,269,198 (R$29,600,947 on December 31, 2019) corresponding to US$4,447,687 on December 31, 2020 (US$7,343,873 on December 31, 2019) and are segregated as follows: 2020 2019 2021 - 3,201,198 2022 - 3,690,205 2023 3,353,702 4,103,490 2024 onwards 19,915,496 18,606,054 Total 23,269,198 29,600,947
Schedule of advances for aircraft acquisition	Of the total commitments presented above, the Company should disburse the amount of R$8,315,768 (corresponding to US$1,600,202 on December 31, 2020) as advances for aircraft acquisition, according to the financial flow below: 2020 2019 2020 - 1,169,967 2021 184,951 1,152,456 2022 1,287,077 1,300,668 2023 2,657,000 1,366,345 2024 onwards 4,186,740 4,255,621 Total 8,315,768 9,245,057

33. Financial instruments and_2

33. Financial instruments and risk management (Tables)	12 Months Ended
	Dec. 31, 2020
Financial instruments and risk management [absract]
Schedule of classification of financial instruments at fair value	The accounting classifications of the Company’s financial instruments on December 31, 2020 and 2019 are as follows: Measured at fair value through profit or loss Amortized cost 2020 2019 2020 2019 Assets Cash and bank deposits 428,812 - - 418,447 Cash equivalents 234,018 5,505 - 1,221,473 Short-term investments 629,335 953,762 - - Restricted cash 544,607 444,306 - - Trade receivables - - 739,699 1,229,530 Derivative assets 128,809 147,469 - - Deposits (a) - - 1,390,890 1,126,609 Other credits and amounts - - 179,160 140,006 Liabilities Loans and financing (b) 346,030 626,557 9,630,936 7,783,284 Leases - - 7,584,192 6,052,780 Suppliers - - 1,645,194 1,296,417 Suppliers - forfeiting - - - 554,467 Derivatives liabilities 5,297 20,350 - - Other liabilities - - 618,754 164,709 (a) Excludes court deposits, as described in Note 13. (b) The amounts on December 31, 2020 and 2019, classified as measured at fair value through profit or loss, are related to the derivative contracted through Exchange Senior Notes.
Schedule of derivative financial instruments	The Company's derivative financial instruments were recognized as follows in the balance sheet: Derivatives Non-derivative Fuel Interest rate Foreign curency rate Capped call ESN Revenue hedge Total Fair value changes Rights (obligations) with derivatives on December 31, 2019 (20,350) - 3,500 143,969 (626,557) - (499,438) Gains (losses) recognized in income (expenses) - - 18,210 (74,728) 374,994 - 318,476 Gains (losses) recognized as exchange rate change - - - 18,422 (94,467) - (76,045) Gains (losses) recognized in equity valuation adjustments (744,973) - - - - - (744,973) Settlements (payments received) during the year 799,489 - (20,027) - - - 779,462 Rights (obligations) with derivatives on December 31, 2020 34,166 - 1,683 87,663 (346,030) - (222,518) Derivative assets 39,463 - 1,683 87,663 - - 128,809 Loans and financing - - - - (346,030) - (346,030) Derivatives liabilities (5,297) - - - - - (5,297) Changes in the adjustment of equity valuation Balance on December 31, 2019 (53,243) (311,364) - - - (165,436) (530,043) Fair value adjustments during the year (744,973) - - - - - (744,973) Adjustments of hedge accounting of revenue - - - - - (993,532) (993,532) Net reversal to income (expenses) 318,140 8,158 - - - 25,543 351,841 Derecognition of hedge object 315,286 - - - 290,345 605,631 Balances on December 31, 2020 (164,789) (303,207) - - - (843,080) (1,311,076) Effects on income (expenses) (633,426) (8,158) 18,210 (56,306) 280,527 677,644 278,491 Hedge nature Classification 2020 USD revenue Net revenue (16,086) USD revenue Exchange rate change 693,730 Fuel Aircraft fuel (249,328) Fuel Financial income (expenses) (384,098) Interest rate - lease Financial income (expenses) (8,158) Conversion right - ESN Financial income (expenses) 374,994 Conversion right - ESN Exchange rate change (94,467) Capped call – Financial income (expenses) (74,728) Capped call – ESN Exchange rate change 18,422 Foreign currency rate Exchange rate change 18,210 Total effects on income (expenses) 278,491
Schedule of reclassification to profit or loss	Cash flow hedges are scheduled for realization and, therefore, reclassification to expense according to the following periods: 2021 2022 2023 2024 2025 onwards Fuel 154,973 9,816 - - - Interest Rate 15,878 21,707 26,575 26,412 212,635 Revenue Hedge 118,571 248,225 301,922 174,362 - Total 289,422 279,748 328,497 200,774 212,635
Schedule of fuel risk	The table below shows the sensitivity analysis considering the fluctuation of prices of air fuel priced in U.S. dollars, based on the barrel price on December 31, 2020 at US$48.52: Fuel Barrel price (in USD) Impact (in thousands of Reais) Decline in prices/barrel (-25%) 35.81 (95,280) Decline in prices/barrel (-10%) 43.67 (27,835) Increase in prices/barrel (+10%) 53.49 110,033 Increase in prices/barrel (+25%) 59.68 283,818
Schedule of fluctuations in interest rates	The amounts show the impacts on Income (Expenses) according to the scenarios adopted below: Short-term investments net of Loans and financing (a) Risk CDI rate drop Libor rate increase Reference rates 1.90% 0.08% Exposure amount (probable scenario) (b) (565,397) 3,201,557 Remote favorable scenario (-25%) 1,179 (622) Possible favorable scenario (-10%) 426 (249) Possible adverse scenario (+10%) (426) 249 Remote adverse scenario (+25%) (1,179) 622 (a) Refers to the sum of the amounts invested and raised in the financial market and indexed to the CDI and Libor rates. (b) Book balances recorded as of December 31, 2020.
Schedule of foreign currency exposure	The Company’s foreign currency exposure is summarized below: 2020 2019 Assets Cash, short-term investments and restricted cash 491,258 1,035,802 Trade receivables 120,167 202,363 Recoverable taxes - 5,312 Deposits 1,390,890 1,126,609 Derivative assets 128,809 147,469 Total Assets 2,131,124 2,517,555 Liabilities Loans and financing (9,132,988) (7,831,116) Leases (7,536,677) (6,007,973) Suppliers (481,001) (462,636) Provisions (1,030,915) - Derivatives liabilities (5,297) (20,350) Total Liabilities (18,186,878) (14,322,075) Exchange rate exposure liabilities (16,055,754) (11,804,517) Commitments not recorded in the statements of financial position Future obligations resulting from firm aircraft orders (23,269,198) (29,600,647) Total (23,269,198) (29,600,647) Total exchange rate exposure R$ (39,324,952) (35,356,555) Total exchange rate exposure - US$ (7,567,293) (8,771,815) Exchange rate (R$/US$) 5.1967 4.0307
Schedule of foreign currency risk	As of December 31, 2020, the Company adopted the closing exchange rate of R$5.1967/US$1.00 as a likely scenario. The table below shows the sensitivity analysis and the effect on income (expenses) of exchange rate fluctuations in the exposure amount of the period as of December 31, 2020: Exchange rate Effect on income (expenses) Net liabilities exposed to the risk of appreciation of the U.S. dollar 5.1967 16,055,553 Dollar depreciation (-25%) 3.8975 4,013,939 Dollar depreciation (-10%) 4.6770 1,605,575 Dollar appreciation (+10%) 5.7164 (1,605,575) Dollar appreciation (+25%) 6.4959 (4,013,939)
Schedule of financial liability	The schedules of financial liabilities held by the Company's financial liabilities on December 31, 2020 and 2019 are as follows: Less than 6 months 6 to 12 months 1 to 5 years More than 5 years Total Loans and financing 2,120,462 232,817 6,804,167 819,520 9,976,966 Leases 647,850 669,158 4,763,614 1,503,570 7,584,192 Suppliers 1,612,536 - 32,658 - 1,645,194 Derivatives liabilities 5,297 - - - 5,297 Other liabilities 287,275 - 331,479 - 618,754 On December 31, 2020 4,673,420 901,975 11,931,918 2,323,090 19,830,403 Loans and financing 1,112,414 1,724,940 7,519,263 1,890,448 12,247,065 Leases 1,257,430 1,018,266 5,862,268 967,404 9,105,368 Suppliers 1,286,264 - 10,142 - 1,296,406 Suppliers - Forfeiting 554,467 - - - 554,467 Derivatives liabilities 9,080 - 11,270 - 20,350 On December 31, 2019 4,219,655 2,743,206 13,402,943 2,857,852 23,223,656
Schedule of classifications of the valuation method	33.6. Measurement of the fair value of financial instruments 2020 2019 Fair Value Level Book value Fair value Book value Fair value Cash and cash equivalents Level 1 59,936 59,936 5,505 5,505 Cash and cash equivalents Level 2 170,359 170,359 - - Short-term investments Level 1 22,465 22,465 953,762 953,762 Short-term investments Level 2 606,870 606,870 - - Restricted cash Level 2 544,607 544,607 444,306 444,306 Derivative assets Level 2 128,809 128,809 147,469 147,469 Loans and financing Level 1 (346,030) (346,030) (626,557) (626,557) Derivatives liabilities Level 2 (5,297) (5,297) (20,350) (20,350)
Schedule of capital management	The Company monitors its financial leverage ratio, which corresponds to net indebtedness, including short and long-term loans and financing and leases. The following table shows the financial leverage: 2020 2019 Total loans and financing (9,976,966) (8,409,841) Total leases (7,584,192) (6,052,780) (-) Cash and cash equivalents 654,444 1,645,425 (-) Short-term investments 629,335 953,762 (-) Restricted cash 544,607 444,306 Net indebtedness (15,732,772) (11,419,128)

34. Non-cash Transactions (Tabl

34. Non-cash Transactions (Tables)	12 Months Ended
	Dec. 31, 2020
Noncash Transactions Tables Abstract
Schedule of non-cash transactions	2020 2019 Initial adoption - IFRS 16 - 2,436,333 Share-based payment (Capital/Share-based payment) (23,400) (31,222) Effects of changes in equity interest (Capital reserves / Minority interest) (352) (649) Interest on shareholders’ equity for distribution, net of taxes 23,139 - Actuarial losses from post-employment benefits 13,921 87,541 Dividends - 238,359 Leaseback (Fixed assets/Leases) (248,729) - Leaseback (Leases) 289,102 - Forfeiting (Forfeiting/Loans) (411,457) - Acquisition of property, plant and equipment through financing (Property, plant and equipment / Loans and financing) 25,974 164,234 Guarantee deposits and Maintenance reserve (Deposits / Leases) (77,009) (6,974) Capitalized deposits (Deposits / Property, plant and equipment) (39,729) - Right of use of flight equipment (Property, plant and equipment / Leases) 165,146 957,026 Financial lease agreement renegotiation (Property, plant and equipment / Leases) 221,248 - Unrealized income (expenses) of derivatives (Derivative assets/Equity valuation adjustment) - 30,021

35. Liabilities from financin_2

35. Liabilities from financing activities (Tables)	12 Months Ended
	Dec. 31, 2020
Changes in liabilities arising from financing activities [abstract]
Schedule of changes in liabilities arising from financing activities	The changes in the liabilities of the Company’s financing activities are shown below for the years ended December 31, 2020, 2019 and 2018: 2020 Non-Cash Transactions Adjustment to Profit Opening balance Net cash flows from (used in) financing activities Net cash flows from operating activities Property, plant and equipment acquisition through financing Forfaiting Variation in variable and short-term liabilities Deposit in guarantee Write-off Exchange rate changes, net Provision for interest and cost amortization Contractual amendment Unrealized income (expenses) on derivatives Closing balance Loans and financing 8,409,841 (814,710) (615,027) 25,974 411,457 - - - 2,207,107 727,318 - (374,994) 9,976,966 Leases 6,052,780 (1,058,692) (4,530) 454,248 - 18,731 (47,215) (704,164) 1,833,257 818,529 221,248 - 7,584,192 2019 Non-cash changes Adjustment to profit Opening balance Net cash flows (used in) from financing activities Net cash flows from operating activities Property, plant and equipment acquisition through financing and lease Maintenance reserve Escrow deposit Initial adoption adjustment – IFRS 16 Gains (losses) recognized in other comprehensive income (loss) Exchange rate variation, net Interest accrued and cost amortization Write-offs and contractual amendment Other results Closing balance Loans and financing 6,443,807 1,401,125 (444,006) 164,234 - - - - 313,717 571,681 - (40,717) 8,409,841 Leases 912,145 (1,617,677) (23,304) 957,026 (6,498) (476) 5,370,868 - 241,612 502,544 (283,460) - 6,052,780 Derivatives 409,662 (407,322) (43.008) - - - - (94,527) (13,946) - - 22,022 (127,119) 2018 Non-cash changes Opening balance Cash flow Income for the year Property, plant and equipment acquisition through financing Disposal property, plant and equipment Dividends provisioned through the subsidiary Smiles Provision for interest on loans Treasury shares sold Gains on change in investment Exchange rate variation, net Interest payments and loan cost Other Closing balance Loans and financing 7,105,667 (536,888) - 193,506 (805,081) - 565,854 - 1,043,117 (481,708) - 7,084,467 Other liabilities 143,473 (219,493) - - - 238,879 - - - - - (15,620) 147,239 Non-controlling interests from Smiles 412,013 875 305,669 - - (239,877) - - 561 - - 820 480,061 Capital stock 2,927,184 15,428 - - - - - - - - - - 2,942,612 Treasury shares (4,168) (15,929) - - - - - 19,971 - - - - (126) Shares to be issued - 2,818 - - - - - - - - - - 2,818

1. Operating Context (Details)

1. Operating Context (Details) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Operating Context
Losses with short-term investments	R$ 65403	[1]
Derecognition of cash flow hedge - Fuel	(315,286)	[2]
Derecognition of cash flow hedge - Revenues in US$	(290,345)	[3]
Renegotiation of lease agreements - IFRS 16	19,080	[4]
Total	R$ 651954
[1]	Even though Management of the Company and its subsidiaries have remained faithful to the Company's investment policy, the abrupt changes in macroeconomic indicators, including cuts to the SELIC rate made by the Federal Government, led the Company to record unusual losses in its short-term investments in sovereign fixed income funds linked to SELIC, as well as in private credit fixed income funds with a high degree of liquidity and high quality of credit.
[2]	Due to the operations downsizing, the Company derecognized operations designated as cash flow hedges, as a drop is expected in the fuel consumption previously estimated. Accordingly, the Company transferred R$315,286 in the fiscal year ended December 31, 2020 from the "equity valuation adjustment" group in shareholders' equity to financial results as "derivative losses".
[3]	Due to the temporary interruption of all international flights, the Company also derecognized hedge accounting transactions used to reduce the volatility of future revenues in foreign currency (hedged object), using lease agreements as hedge instruments. That said, the Company transferred R$418,527 from the "equity valuation adjustment" group in shareholders equity to financial results as "exchange rate change expenses".
[4]	The Company signed renegotiations of its aircraft and operating engine lease agreements, with no purchase option, including postponement and deferral of payments, postponement of due dates and changes to the amounts due, which led to an increase in the rights of use in PP&E and lease liabilities of R$176,041 and R$156,961, respectively, resulting in R$19,080.

1. Operating Context (Details 1

1. Operating Context (Details 1) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
DisclosureOfOperatingContextLineItems [Line Items]
Other comprehensive income		R$ 766102	R$ 71066	R$ 420706
Provision for post-employment benefits [member]
DisclosureOfOperatingContextLineItems [Line Items]
Non-current liabilities	[1]	(24,541)
Other comprehensive income	[1]	R$ 24541
[1]	Given the abrupt changes in the macroeconomic scenario, the Company updated the actuarial studies that establish obligations from post-employment benefits, and - mainly due to the drop in the long-term interest rate - the balance related to such obligations was reduced by R$24,541. For further details, see Note 24.

1. Operating Context (Details 2

1. Operating Context (Details 2)		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
GAC [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		GAC
Date of incorporation		Mar. 23, 2006
Location		Cayman Islands
Principal activity		Aircraft acquisition
Type of control		Direct
% of interest in the capital stock		100.00%	100.00%
Gol finance inc [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		Gol Finance Inc.
Date of incorporation		Mar. 16, 2006
Location		Cayman Islands
Principal activity		Fundraising
Type of control		Direct
% of interest in the capital stock		100.00%	100.00%
Gol finance [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		Gol Finance
Date of incorporation		Jun. 21, 2013
Location		Luxembourg
Principal activity		Fundraising
Type of control		Direct
% of interest in the capital stock		100.00%	100.00%
GLA [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		GLA
Date of incorporation		Apr. 9, 2007
Location		Brazil
Principal activity		Flight transportation
Type of control		Direct
% of interest in the capital stock		100.00%	100.00%
AirFim [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		AirFim
Date of incorporation		Nov. 7, 2003
Location		Brazil
Principal activity		Investment fund
Type of control		Indirect
% of interest in the capital stock		100.00%	100.00%
Smiles fidelidade [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		Smiles Fidelidade
Date of incorporation		Aug. 1, 2011
Location		Brazil
Principal activity		Loyalty program
Type of control		Direct
% of interest in the capital stock		52.60%	52.61%
Smiles viagens [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		Smiles Viagens
Date of incorporation		Aug. 10, 2017
Location		Brazil
Principal activity		Tourism agency
Type of control		Indirect
% of interest in the capital stock		52.60%	52.61%
Smiles fidelidade argentina [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity	[1]	Smiles Viagens Argentina (a)
Date of incorporation	[1]	Nov. 20, 2018
Location	[1]	Argentina
Principal activity	[1]	Loyalty program
Type of control	[1]	Indirect
% of interest in the capital stock	[1]	52.60%	52.61%
Smiles viagens argentina [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity	[1]	Smiles Viagens Argentina (a)
Date of incorporation	[1]	Nov. 20, 2018
Location	[1]	Argentina
Principal activity	[1]	Tourism agency
Type of control	[1]	Indirect
% of interest in the capital stock	[1]	52.60%	52.61%
Fundo sorriso [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		Fundo Sorriso
Date of incorporation		Jul. 14, 2014
Location		Brazil
Principal activity		Investment fund
Type of control		Indirect
% of interest in the capital stock		52.60%	52.61%
SCP Trip [member]
DisclosureOfOperatingContextLineItems [Line Items]
Entity		SCP Trip
Date of incorporation		Apr. 27, 2012
Location		Brazil
Principal activity		On-board magazine
% of interest in the capital stock		60.00%	60.00%
[1]	Companies with functional currency in Argentine pesos (ARS).

1. Operating Context (Details N

1. Operating Context (Details Narrative) - BRL (R$) R$ in Thousands	Mar. 16, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfOperatingContextLineItems [Line Items]
Percentage of gross domestic product decreased		4.10%
Percentage of occupancy rates		80.00%
Description of sales		In 4Q 2020 the Company reached a 46% increase in consolidated gross sales, compared to 3Q 2020, particularly concentrated in leisure travel in domestic market, being the Company’s main area of activity. In the same period, GOL’s daily sales exceeded R$30 million, which represents over 80% of pre-pandemic sales levels. As for transportations carried out, on certain dates in December, GOL transported around 88,000 clients in a single day, equivalent to around 67% of the total recorded in the same day in 2019.
Description of operational readjustment flight network	GOL reduced its capacity by 50% to 60% in the domestic market, and by 90% to 95% in the foreign market, to reflect the change in customer demand. The Company adjusted its network from 750 to 50 essential daily flights (essential flight network).
Amount tranfer to derecognized operations designated as cash flow hedges		R$ 315286
Amount tranfer to derecognition of cash flow hedge revenues		418,527
Rights of use in PP&E		176,041
Lease liabilities		7,567,940	R$ 6052780
Change in deferral of payments		19,080
Obligations from post-employment benefits reduced		24,541
Amount of exchange rate changes		3,056,226
Consolidated deficit		(14,407,092)	(7,676,671)
Net working capital		7,152,865	5,435,223
Cash and cash equivalents		662,830	R$ 1645425	R$ 826187	R$ 1026862
Accounts receivable		489,831
Net working capital advance ticket sales		3,309,301
Amount of fines paid		12,000
Brazilian tax authorities [member]
DisclosureOfOperatingContextLineItems [Line Items]
Amount of fines paid		4,200
GLA [member]
DisclosureOfOperatingContextLineItems [Line Items]
Amount of exchange rate changes		48,423
Cash and cash equivalents		607,466
Offset outstanding amount		53,508
Net amount		660,974
Write-off of advances for acquisition of PP&E		73,600
Advance of credits in liabilities		292,013
Reimbursement of expenses		246,938
Expenses incurred in current year		53,436
Expenses incurred in previous fiscal years		R$ 193503

4. Summary of significant acc_4

4. Summary of significant accounting practices (Details)	12 Months Ended
	Dec. 31, 2020R$ / $R$ / $	Dec. 31, 2019R$ / $R$ / $
ARS
Disclosure of changes in accounting estimates [line items]
Final Rate	0.0617	0.0673
Average rate	0.0622	0.0686
USD
Disclosure of changes in accounting estimates [line items]
Final Rate	5.1967	4.0307
Average rate	5.1425	4.1102

4. Summary of significant acc_5

4. Summary of significant accounting practices (Details Narrative) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Disclosure of changes in accounting estimates [line items]
Taxable income	30.00%
Description of hedge instruments	(1) hedged: highly probable sales revenue in US$; (2) hedge instrument: lease contracts linked to the US$; (3) amount designated: (1) hedged object: highly probable sales revenue in US$; (2) hedge instrument: 50 lease agreements linked to US$; (3) designated amount: 60 months of highly probable revenues based on a range of 80 to 85% of historically earned revenues, totaling US$903,102 at the initial adoption; (4) nature of the hedged risk: exchange rate change; (5) specification of the hedged risk: USD/BRL spot exchange rate change; (6) type of hedge: cash flow.
Revenue	R$ 903102
Restricted Shares, grant date	At the end of three or four years.
Lease term	12 months
IRPJ [member]
Disclosure of changes in accounting estimates [line items]
Applicable tax rate	10.00%
CSLL [member]
Disclosure of changes in accounting estimates [line items]
Applicable tax rate	9.00%
Additional applying tax [member]
Disclosure of changes in accounting estimates [line items]
Applicable tax rate	15.00%

5. Cash and cash equivalents (D

5. Cash and cash equivalents (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash And Cash Equivalents
Cash and bank deposits	R$ 428812	R$ 418447
Cash equivalents	234,018	1,226,978
Total	R$ 662830	R$ 1645425	R$ 826187	R$ 1026862

5. Cash and cash equivalents _2

5. Cash and cash equivalents (Details 1) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CashAndCashEquivalentLineItems [Line Items]
Cash equivalents	R$ 234018	R$ 1226978
Local currency [member]
CashAndCashEquivalentLineItems [Line Items]
Cash equivalents	230,295	519,861
Foreign currency [member]
CashAndCashEquivalentLineItems [Line Items]
Cash equivalents	3,723	707,117
Private bonds and deposits with banks [member] | Local currency [member]
CashAndCashEquivalentLineItems [Line Items]
Cash equivalents	170,359	514,356
Private bonds and deposits with banks [member] | Foreign currency [member]
CashAndCashEquivalentLineItems [Line Items]
Cash equivalents	3,723	707,117
Automatic deposits [member] | Local currency [member]
CashAndCashEquivalentLineItems [Line Items]
Cash equivalents	R$ 59936	R$ 5505

6. Short-term investments (Deta

6. Short-term investments (Details) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Short Term Investments [Line Items]
Short-term investments	R$ 629335	R$ 953762
Local currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments	626,163	919,400
Foreign currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments	3,172	34,362
Government bonds [member] | Local currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments	R$ 22465	56,532
Weighted average rate equivalent	72.7% of CDI
Government bonds [member] | Foreign currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments		29,684
Investment funds [member] | Local currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments	R$ 603698	862,868
Weighted average rate equivalent	77.7% of CDI
Investment funds [member] | Foreign currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments	R$ 757	2,965
Weighted average rate equivalent	0.6%
Deposits with banks [member] | Foreign currency [member]
Disclosure of Short Term Investments [Line Items]
Short-term investments	R$ 2415	R$ 1713
Weighted average rate equivalent	0.6%

7. Restricted cash (Details)

7. Restricted cash (Details) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 544607	R$ 444306
Current	355,769	304,920
Non-current	188,838	139,386
Local currency [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	477,704	369,875
Local currency [member] | Import financing [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 213153	138,164
Weighted Average Profitability	96.6% of CDI
Local currency [member] | Letter of guarantee - legal proceedings [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 56440	85,351
Weighted Average Profitability	85.8% of CDI
Local currency [member] | Collateral for working capital lines of credit [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 52927	9,922
Weighted Average Profitability	99.9% of CDI
Local currency [member] | Letter of credit - maintenance deposit [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 155184	136,438
Weighted Average Profitability	97.9% of CDI
Foreign currency [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 66903	74,431
Foreign currency [member] | Collateral for financing with ex-lm bank [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 31206
Weighted Average Profitability	0.2%
Foreign currency [member] | Escrow deposits for hedge margin [member]
Disclosure of Restricted Cash [Line Items]
Restricted cash and cash equivalents	R$ 35697	R$ 74431

8. Trade receivables (Details)

8. Trade receivables (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	R$ 757746	R$ 1246482
Allowance for expected loss on trade receivables accounts	(18,047)	(16,952)
Total Trade Receivables	739,699	1,229,530
Foreign customers [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	120,167	202,363
Foreign customers [member] | Travel agencies [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	13,960	36,845
Foreign customers [member] | Credit card administrators [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	77,616	121,844
Foreign customers [member] | Other [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	9,005	11,550
Foreign customers [member] | Cargo agencies [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	122	1,384
Foreign customers [member] | Airline partners companies [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	19,464	30,740
Domestic customers [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	637,579	1,044,119
Domestic customers [member] | Travel agencies [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	266,086	253,494
Domestic customers [member] | Credit card administrators [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	318,869	740,967
Domestic customers [member] | Other [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	13,845	15,690
Domestic customers [member] | Cargo agencies [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	29,902	33,677
Domestic customers [member] | Airline partners companies [member]
TradeAndOtherReceivablesLineItems [Line Items]
Gross trade receivables	R$ 8877	R$ 291

8. Trade receivables (Details 1

8. Trade receivables (Details 1) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	R$ 739699	R$ 1229530
Overdue until 30 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	10,278	47,959
Overdue 31 to 60 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	21,677	23,290
Overdue 61 to 90 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	13,501	3,986
Overdue 91 to 180 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	11,474	3,009
Overdue 181 to 360 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	785	421
Overdue above 360 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	4,060	3,202
Current Until 30 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	459,338	567,567
Current 31 to 60 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	88,893	213,334
Current 61 to 90 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	33,121	100,478
Current 91 to 180 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	54,832	187,883
Current 181 to 360 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	41,484	76,902
Current above 360 days [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	256	1,499
Current [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	677,924	1,147,663
Overdue [member]
TradeAndOtherReceivablesLineItems [Line Items]
Trade receivables	R$ 61775	R$ 81867

8. Trade receivables (Details 2

8. Trade receivables (Details 2) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Trade receivables doubtful accounts [Roll Forward]
Balance at the beginning of the year	R$ 16952	R$ 11284
(Additions) and Exclusions	(1,095)	(13,499)
Unrecoverable Amounts		7,831
Balances at the end of the year	R$ 18047	R$ 16952

9. Inventories (Details)

9. Inventories (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Inventories Abstract
Consumables	R$ 14533	R$ 14274
Parts and maintenance materials	181,105	184,939
Total	R$ 195638	R$ 199213

9. Inventories (Details 1)

9. Inventories (Details 1) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Provision for obsolete inventory [Roll Forward]
Balances at the beginning of the year	R$ 14302	R$ 12808
Addition	(702)	(2,168)
Write-off	2,142	674
Balances at the end of the year	R$ 12862	R$ 14302

10. Advance to suppliers and _3

10. Advance to suppliers and third parties (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Advance To Suppliers And Third Parties
Advance to domestic suppliers	R$ 290664	R$ 95596
Advances to international suppliers	68,873	25,316
Advance for materials and repairs	48,933	48,930
Other advances		20,883
Total advances to suppliers	408,470	190,725
Current	318,769	142,338
Non-current	R$ 89701	R$ 48387

11. Recoverable taxes (Details)

11. Recoverable taxes (Details) - BRL (R$) R$ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Recoverable Taxes
IRPJ and CSLL prepayments		R$ 109231	R$ 195864
Withholding income tax			3,969
PIS and COFINS to recover	[1]	387,033	273,152
Value added tax (VAT) abroad		3,998	4,650
Other		5,097	6,181
Total		505,359	483,816
Current		186,955	309,674
Non-current		R$ 318404	R$ 174142
[1]	During the fiscal year ended December 31, 2020, the subsidiary GLA recorded PIS and COFINS extemporaneous tax credits, in the total amount of R$126,675. As of December 31, 2019, the subsidiaries Smiles Fidelidade and GLA calculated out-of-date PIS and COFINS credits, totaling R$49,518 and R$91,066, respectively.

12. Deferred taxes (Details)

12. Deferred taxes (Details) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - assets at beginnig	R$ 59809
Statement of operations	(6,614)
Shareholders' Equity and other	368	[1]
Total deferred taxes - assets at ending	53,563
Total deferred taxes - liabilities at beginnig	244,041
Statement of operations	24,193
Shareholders equity and other	214	[1]
Total deferred taxes - liabilities at ending	219,634
Other [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - assets at beginnig
Statement of operations	15
Shareholders' Equity and other	56	[1]
Total deferred taxes - assets at ending	71
Total deferred taxes - liabilities at beginnig	89,313
Statement of operations	(8,463)
Shareholders equity and other	214	[1]
Total deferred taxes - liabilities at ending	81,064
Unrealized profits [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	68,111
Statement of operations	1,732
Shareholders equity and other
Total deferred taxes - liabilities at ending	69,843
Aircraft leases and others [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	64,379
Statement of operations	(53,793)
Shareholders equity and other
Total deferred taxes - liabilities at ending	10,586
Provisions for aircrafts redelivery [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	146,239
Statement of operations	44,539
Shareholders equity and other
Total deferred taxes - liabilities at ending	190,778
Provision for legal proceedings and tax liabilities [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - assets at beginnig	696
Statement of operations	(779)
Shareholders' Equity and other
Total deferred taxes - assets at ending	(83)
Total deferred taxes - liabilities at beginnig	91,051
Statement of operations	33,672
Shareholders equity and other
Total deferred taxes - liabilities at ending	124,723
Allowance for expenses loss on trade receivables and other credits [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - assets at beginnig	1,958
Statement of operations	46
Shareholders' Equity and other
Total deferred taxes - assets at ending	2,004
Total deferred taxes - liabilities at beginnig	200,088
Statement of operations	1,358
Shareholders equity and other
Total deferred taxes - liabilities at ending	201,466
Reversal of goodwill amortization for tax purposes [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	(127,659)
Statement of operations
Shareholders equity and other
Total deferred taxes - liabilities at ending	(127,659)
Depreciation of engines and parts for aircraft maintenance [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	(183,977)
Statement of operations	(10,812)
Shareholders equity and other
Total deferred taxes - liabilities at ending	(194,789)
Slots [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	(353,226)
Statement of operations
Shareholders equity and other
Total deferred taxes - liabilities at ending	(353,226)
Breakage provision [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	(196,206)
Statement of operations	2,708
Shareholders equity and other
Total deferred taxes - liabilities at ending	(193,498)
Derivative transactions [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - liabilities at beginnig	(42,154)
Statement of operations	13,252
Shareholders equity and other
Total deferred taxes - liabilities at ending	(28,902)
Negative basis of social contribution [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - assets at beginnig	14,360
Statement of operations	(710)
Shareholders' Equity and other
Total deferred taxes - assets at ending	13,650
Income Tax losses carry forward [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total deferred taxes - assets at beginnig	42,795
Statement of operations	(5,186)
Shareholders' Equity and other	312	[1]
Total deferred taxes - assets at ending	R$ 37921
[1]	Exchange rate change recognized in other comprehensive income (expenses).

12. Deferred taxes (Details 1)

12. Deferred taxes (Details 1) - Gol linhas aereas S.A. ("GLA") [member] - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Acumulated income tax losses	R$ 8401388	R$ 5017227
Negative basis of social contribution	8,401,388	5,017,227
Potential tax credit	R$ 2856472	R$ 1705857

12. Deferred taxes (Details 2)

12. Deferred taxes (Details 2) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total	R$ 51571
2021 [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total	1,438
2022 [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total	9,128
2023 [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total	12,657
2024 Thereafter [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total	13,191
2025 to 2030 [member]
DeferredTaxAssetsAndLiabilitiesLineItems [Line Items]
Total	R$ 15157

12. Deferred taxes (Details 3)

12. Deferred taxes (Details 3) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets and liabilities [abstract]
Income (loss) before income tax and social contribution	R$ 5817293	R$ 388945	R$ 482596
Combined tax rate	34.00%	34.00%	34.00%
Income at the statutory tax rate	R$ 1977880	R$ 132241	R$ 164083
Adjustments to calculate the effective tax rate:
Equity method investees	(149)	26	132
Tax rate difference on results of offshore subsidiaries	(4,734)	(207,565)	201,043
Non-deductible expenses, net	(124,577)	(61,219)	161,815
Exchange rate change on foreign investments	(174,151)	(101,329)	(173,964)
Interest on shareholders' equity	8,693	8,212	6,998
Extemporaneous tax credit		31,942
Deferred tax assets (liabilities) net recognized	(1,760,920)	252,567	(653,343)
Use of tax credits in non-recurring installment Payments			(3,892)
Total income tax	(77,958)	(209,607)	(297,128)
Income tax and social contribution
Current	(95,537)	(178,621)	(52,139)
Deferred	17,579	(30,986)	(244,989)
Total income (loss) taxes	R$ 77958	R$ 209607	R$ 297128

13. Deposits (Details)

13. Deposits (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Deposits Abstract
Court deposits	R$ 667565	R$ 841746
Maintenance deposits	1,032,418	830,282
Deposits in guarantee for leases agreements	358,472	296,327
Total	R$ 2058455	R$ 1968355

13. Deposits (Details Narrative

13. Deposits (Details Narrative) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Deposits [Line Items]
Maintenance guarantee	R$ 273311	R$ 213449
Maintenance reserve	759,108	616,833
Legal proceedings contingent liability [member]
Disclosure of Deposits [Line Items]
Blocked amounts under judicial deposits	115,390	107,510
Third party claim contingent liability [member]
Disclosure of Deposits [Line Items]
Blocked amounts under judicial deposits	R$ 77564	R$ 105320

14. Investments (Details)

14. Investments (Details) - SCP trip [member] - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Relevant investment information in Trip
Capital stock	R$ 1318	R$ 1318
Interest	60.00%	60.00%
Total equity	R$ 1359	R$ 2103
Adjusted equity	815	1,254	R$ 1177
Net income for the year	(732)	129
Net income for the year attributable to the company's interest	R$ 439	R$ 77

14. Investments (Details 1)

14. Investments (Details 1) - SCP trip [member] - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Changes in investments [Roll Forward]
Balances on beginning	R$ 1254	R$ 1177
Equity method results	(439)	77
Balances on ending	R$ 815	R$ 1254

15. Property, plant and equip_3

15. Property, plant and equipment (Details) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		R$ 4960288	R$ 6058101
Impairment Losses	[1]	(34,328)	(41,719)
Additions and contractual amendments		(508,584)
Disposals	[2]	(612,166)
Transfers
Flight equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		4,715,280	5,812,785
Additions and contractual amendments		(485,988)
Disposals	[2]	(611,517)
Transfers
Total property plant and equipment in use [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		4,960,288	6,058,101
Additions and contractual amendments		(412,047)
Disposals	[2]	(685,766)
Transfers
Property plant and equipment in use [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		100,246	130,880
Additions and contractual amendments		(29,985)
Disposals	[2]	(649)
Transfers
Advances to suppliers [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	[3]	179,092	156,155
Additions and contractual amendments	[3]	96,537
Disposals	[2],[3]	(73,600)
Transfers	[3]
Depreciation [member] | Aircraft - ROU with purchase option [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	[4]		(226,433)
Additions and contractual amendments	[4]	(2,935)
Disposals	[2],[4]	229,368
Transfers	[4]
Depreciation [member] | Aircraft - ROU with no purchase option [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		16.52%
Property, plant and equipment		R$ 1420648	(719,377)
Additions and contractual amendments		(783,678)
Disposals	[2]	82,407
Transfers
Depreciation [member] | Aircraft and engine overhauling [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		44.20%
Property, plant and equipment		R$ 2282042	(1,717,552)
Additions and contractual amendments		(780,054)
Disposals	[2]	215,564
Transfers
Depreciation [member] | Spare parts and engines - ROU [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		25.59%
Property, plant and equipment		R$ 47940	(26,745)
Additions and contractual amendments		(30,274)
Disposals	[2]	9,079
Transfers
Depreciation [member] | Flight equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		(4,616,375)	(3,421,200)
Additions and contractual amendments		(1,734,895)
Disposals	[2]	539,720
Transfers
Depreciation [member] | Machinery and equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		10.00%
Property, plant and equipment		R$ 48417	(45,437)
Additions and contractual amendments		(4,045)
Disposals	[2]	1,065
Transfers
Depreciation [member] | Furniture and fixtures [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		10.00%
Property, plant and equipment		R$ 20483	(19,908)
Additions and contractual amendments		(2,088)
Disposals	[2]	1,513
Transfers
Depreciation [member] | Computers and peripherals - own [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		20.00%
Property, plant and equipment		R$ 35837	(33,190)
Additions and contractual amendments		(3,740)
Disposals	[2]	1,093
Transfers
Depreciation [member] | Computers and peripherals - ROU [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		35.26%
Property, plant and equipment		R$ 15460	(7,682)
Additions and contractual amendments		(7,778)
Disposals	[2]
Transfers
Depreciation [member] | Communication equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		10.00%
Property, plant and equipment		R$ 1871	(2,081)
Additions and contractual amendments		(95)
Disposals	[2]	305
Transfers
Depreciation [member] | Vehicles [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		20.00%
Property, plant and equipment		R$ 9572	(9,291)
Additions and contractual amendments		(595)
Disposals	[2]	314
Transfers
Depreciation [member] | Property plant and equipment in use [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		(304,471)	(267,074)
Additions and contractual amendments		(42,343)
Disposals	[2]	4,946
Transfers
Depreciation [member] | Tools [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		10.00%
Property, plant and equipment		R$ 28697	(24,712)
Additions and contractual amendments		(4,148)
Disposals	[2]	163
Transfers
Depreciation [member] | Spare parts and engines - own [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		7.13%
Property, plant and equipment	[5],[6]	R$ 837048	(706,381)
Additions and contractual amendments	[5],[6]	(133,806)
Disposals	[2],[5],[6]	3,139
Transfers	[5],[6]
Depreciation [member] | Security equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		10.00%
Property, plant and equipment		R$ 32	(615)
Additions and contractual amendments		(3)
Disposals	[2]	586
Transfers
Depreciation [member] | Third-party property improvement [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		20.31%
Property, plant and equipment		R$ 49328	(39,039)
Additions and contractual amendments		(10,289)
Disposals	[2]
Transfers
Depreciation [member] | Third-party property improvement - CMA [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		12.05%
Property, plant and equipment		R$ 107637	(102,675)
Additions and contractual amendments		(4,962)
Disposals	[2]
Transfers
Depreciation [member] | Third-party properties - ROU [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		35.57%
Property, plant and equipment		R$ 15834	(7,156)
Additions and contractual amendments		(8,748)
Disposals	[2]	70
Transfers
Depreciation [member] | Third-party property improvements - CMA [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		12.50%
Depreciation [member] | Third-party property improvements [member]
Disclosure of detailed information about property, plant and equipment [line items]
Average annual depreciation rate		20.31%
Cost [member] | Aircraft - ROU with purchase option [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	[7],[8]		660,256
Additions and contractual amendments	[7],[8]
Disposals	[2],[7],[8]	(660,256)
Transfers	[7],[8]
Cost [member] | Aircraft - ROU with no purchase option [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		4,020,709	3,561,980
Additions and contractual amendments		704,253
Disposals	[2]	(245,524)
Transfers
Cost [member] | Aircraft and engine overhauling [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		3,206,385	3,084,023
Additions and contractual amendments		351,386
Disposals	[2]	(229,024)
Transfers
Cost [member] | Spare parts and engines - ROU [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		84,329	109,977
Additions and contractual amendments		(15,296)
Disposals	[2]	(10,352)
Transfers
Cost [member] | Spare parts and engines [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	[5],[6]	1,964,411	1,764,295
Additions and contractual amendments	[5],[6]	206,253
Disposals	[2],[5],[6]	(5,887)
Transfers	[5],[6]	(250)
Cost [member] | Flight equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		9,331,655	9,233,985
Additions and contractual amendments		1,248,907
Disposals	[2]	(1,151,237)
Transfers
Cost [member] | Machinery and equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		62,841	63,091
Additions and contractual amendments		888
Disposals	[2]	(1,138)
Transfers
Cost [member] | Furniture and fixtures [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		32,790	32,983
Additions and contractual amendments		1,386
Disposals	[2]	(1,579)
Transfers
Cost [member] | Computers and peripherals - own [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		47,487	45,732
Additions and contractual amendments		2,863
Disposals	[2]	(1,108)
Transfers
Cost [member] | Computers and peripherals - ROU [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		21,992	21,992
Additions and contractual amendments
Disposals	[2]
Transfers
Cost [member] | Communication equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		2,233	2,548
Additions and contractual amendments		8
Disposals	[2]	(323)
Transfers
Cost [member] | Vehicles [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		11,264	11,681
Additions and contractual amendments		159
Disposals	[2]	(576)
Transfers
Cost [member] | Property plant and equipment in use [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		404,717	397,954
Additions and contractual amendments		12,358
Disposals	[2]	(5,595)
Transfers
Cost [member] | Tools [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		55,821	53,454
Additions and contractual amendments		2,311
Disposals	[2]	(194)
Transfers		250
Cost [member] | Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		14,837	17,906
Additions and contractual amendments		1,141
Disposals	[2]
Transfers		(4,210)
Cost [member] | Security equipment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		55	856
Additions and contractual amendments
Disposals	[2]	(801)
Transfers
Cost [member] | Third-party property improvement [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		75,714	71,174
Additions and contractual amendments		330
Disposals	[2]
Transfers		4,210
Cost [member] | Third-party property improvement - CMA [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment	[4]	107,637	107,637
Additions and contractual amendments
Disposals	[2]
Transfers
Cost [member] | Third-party properties - ROU [member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment		27,867	R$ 22354
Additions and contractual amendments		5,583
Disposals	[2]	(70)
Transfers
[1]	Refers to provisions for impairment losses for rotable items (spare parts), classified under "Parts and spare engines'', recorded by the Company in order to present its assets according to the actual capacity for the generation of expected future benefits.
[2]	The amounts are composed of sales and write-offs.
[3]	The write-off refers to PDP return, as mentioned in note 1.3.
[4]	CMA - Maintenance Center - Confins/MG
[5]	As of December 31, 2020, 19 engines of the Company are granted as a guarantee to the Spare Engine Facility and the Loan Facility, according to note 17.
[6]	As of December 31, 2020, the balance of spare parts is granted as a guarantee to Secured Notes 2026, according to note 17.
[7]	ROU - Right of Use
[8]	Write-off resulting from the sale-leaseback transaction, see Note 18.1.

16. Intangible assets (Details)

16. Intangible assets (Details) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	R$ 1776675
Additions	(29,321)
Write-offs	(246)
Balance as of end of period	1,747,108
Cost [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	2,170,572
Additions	63,993
Write-offs	(135,629)
Balance as of end of period	2,098,936
Amortization [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	(393,897)
Additions	(93,314)
Write-offs	135,383
Balance as of end of period	(351,828)
Goodwill [member] | Cost [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	542,302
Additions
Write-offs
Balance as of end of period	542,302
Slots [member] | Cost [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	1,038,900
Additions
Write-offs
Balance as of end of period	1,038,900
Software [member] | Cost [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	579,370
Additions	63,993
Write-offs	(135,629)
Balance as of end of period	507,734
Software [member] | Amortization [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	(389,730)
Additions	(91,314)
Write-offs	135,383
Balance as of end of period	R$ 345661
Average annual depreciation rate	25.73%
Other [member] | Cost [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	R$ 10000
Additions
Write-offs
Balance as of end of period	10,000
Other [member] | Amortization [member]
Intangible Assets And Goodwill [Roll Forward]
Balance as of beginning of period	(4,167)
Additions	(2,000)
Write-offs
Balance as of end of period	R$ 6167
Average annual depreciation rate	20.00%

16. Intangible assets (Details

16. Intangible assets (Details 1) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Goodwill [member] | Gol linhas aereas S.A. ("GLA") [member]
Disclosure of detailed information about intangible assets [line items]
Intangible assets - book values	R$ 325381	R$ 325381
Intangible assets - book value - UGC		3,615,949
Intangible assets - value in use	R$ 20784520	R$ 26543428
Intangible assets - discount rate	13.98%	12.20%
Intangible assets - perpetuity growth rate	3.25%	3.55%
Goodwill [member] | Smiles S.A. ("Smiles") [member]
Disclosure of detailed information about intangible assets [line items]
Intangible assets - book values	R$ 216921	R$ 216921
Intangible assets - book value - UGC		161,669
Intangible assets - value in use	R$ 6771424	R$ 6061994
Intangible assets - discount rate	14.72%	12.07%
Intangible assets - perpetuity growth rate	3.25%	3.55%
Slots [member]
Disclosure of detailed information about intangible assets [line items]
Intangible assets - book values	R$ 1038900	R$ 1038900
Intangible assets - book value - UGC		3,615,949
Intangible assets - value in use	R$ 21064362	R$ 21373789
Intangible assets - discount rate	12.20%	12.85%
Intangible assets - perpetuity growth rate	3.25%	3.53%

17. Loans and Financing (Detail

17. Loans and Financing (Details) R$ in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2020USD ($)	Dec. 31, 2020BRL (R$)	Dec. 31, 2020BRL (R$)	Dec. 31, 2019USD ($)	Dec. 31, 2019BRL (R$)
Foreign currency long-term borrowings [member] | Secured funding [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[1]	12/2021	12/2021
Interest rate p.a.	[1]	9.50%	9.50%
Current	[1]	$ 484,113
Noncurrent | R$
Total debt	[1]	484,113
Funding	[1]	1,367,825
Unrealized gain and loss from ESN	[1]
Payments	[1]	(833,171)
Interest incurred	[1]	36,749
Interest paid	[1]	(36,366)
Exchange rate change	[1]	(50,924)
Amortization of costs and premium
Foreign currency long-term borrowings [member] | Term loan b [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[2]	08/2020	08/2020
Interest rate p.a.	[2]	6.50%	6.50%
Current	[2]				1,229,600
Noncurrent | R$
Total debt	[2]				1,229,600
Funding	[2]
Unrealized gain and loss from ESN	[2]
Payments	[2]	(1,641,390)
Interest incurred	[2]	65,382
Interest paid	[2]	(97,632)
Exchange rate change	[2]	437,942
Amortization of costs and premium	[2]	$ 6,098
Foreign currency long-term borrowings [member] | Import financing [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[3]	06/2021	06/2021
Interest rate p.a.	[3]	5.63%	5.63%
Current	[3]	$ 783,659			663,979
Noncurrent | R$
Total debt	[3]	783,659			663,979
Funding	[3]	25,974
Unrealized gain and loss from ESN	[3]
Payments	[3]	(103,238)
Interest incurred	[3]	41,326
Interest paid	[3]	(45,856)
Exchange rate change	[3]	201,474
Amortization of costs and premium	[3]
Foreign currency long-term borrowings [member] | Senior notes 2022 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[4]	01/2022	01/2022
Interest rate p.a.	[4]	8.88%	8.88%
Current	[4]				12,102
Noncurrent | R$						313,267
Total debt	[4]				325,369
Funding	[4]
Unrealized gain and loss from ESN	[4]
Payments	[4]	(405,878)
Interest incurred	[4]	7,052
Interest paid	[4]	(20,695)
Exchange rate change	[4]	92,730
Amortization of costs and premium	[4]	$ 1,422
Foreign currency long-term borrowings [member] | Financing with Ex-lm Bank collateral [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[5]	12/2022	12/2022
Interest rate p.a.	[5]	0.92%	0.92%
Current	[5]	$ 194,786			180,812
Noncurrent | R$				49,958		76,395
Total debt	[5]	244,744			257,207
Funding	[5]	124,074
Unrealized gain and loss from ESN	[5]
Payments	[5]	(216,829)
Interest incurred	[5]	5,488
Interest paid	[5]	(4,469)
Exchange rate change	[5]	71,877
Amortization of costs and premium	[5]	$ 7,396
Foreign currency long-term borrowings [member] | ESN [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[6],[7]	07/2024	07/2024
Interest rate p.a.	[6],[7]	3.75%	3.75%
Current	[6],[7]	$ 37,960			29,443
Noncurrent | R$				1,896,854		1,753,526
Total debt	[6],[7]	1,934,814			1,782,969
Funding	[6],[7]
Unrealized gain and loss from ESN	[6],[7]	(374,994)
Payments	[6],[7]
Interest incurred	[6],[7]	178,414
Interest paid	[6],[7]	(75,486)
Exchange rate change	[6],[7]	424,327
Amortization of costs and premium	[6],[7]	$ (416)
Foreign currency long-term borrowings [member] | Spare engine facility [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[8]	09/2024	09/2024
Interest rate p.a.	[8]	2.56%	2.56%
Current	[8]	$ 22,771			17,551
Noncurrent | R$				197,009		201,084
Total debt	[8]	219,780			218,635
Funding	[8]
Unrealized gain and loss from ESN	[8]
Payments	[8]	(63,482)
Interest incurred	[8]	8,957
Interest paid	[8]	(9,282)
Exchange rate change	[8]	64,670
Amortization of costs and premium	[8]	$ 282
Foreign currency long-term borrowings [member] | Senior notes 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[9]	01/2025	01/2025
Interest rate p.a.	[9]	7.00%	7.00%
Current	[9]	$ 98,521			75,587
Noncurrent | R$				3,340,316		2,548,472
Total debt	[9]	3,438,837			2,624,059
Funding	[9]	37,322
Unrealized gain and loss from ESN	[9]
Payments	[9]
Interest incurred	[9]	235,588
Interest paid	[9]	(215,506)
Exchange rate change	[9]	751,423
Amortization of costs and premium	[9]	$ 5,951
Foreign currency long-term borrowings [member] | Secured notes 2026 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[10]	06/2026	06/2026
Interest rate p.a.	[10]	8.00%	8.00%
Current	[10]	$ 1,848
Noncurrent | R$				953,802
Total debt	[10]	955,650
Funding	[10]	952,509
Unrealized gain and loss from ESN	[10]
Payments	[10]
Interest incurred	[10]	1,828
Interest paid	[10]
Exchange rate change	[10]	20
Amortization of costs and premium	[10]	$ 1,293
Foreign currency long-term borrowings [member] | Loan facility [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[11]	03/2028	03/2028
Interest rate p.a.	[11]	4.73%	4.73%
Current	[11]	$ 32,566			31,727
Noncurrent | R$				233,135		150,821
Total debt	[11]	265,701			182,548
Funding	[11]	59,949
Unrealized gain and loss from ESN	[11]
Payments	[11]	(33,719)
Interest incurred	[11]	11,974
Interest paid	[11]	(8,969)
Exchange rate change	[11]	53,681
Amortization of costs and premium	[11]	$ 237
Foreign currency long-term borrowings [member] | Perpetual bonds [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Interest rate p.a.	[12],[13]	8.75%	8.75%
Current	[12],[13]	$ 16,522			12,815
Noncurrent | R$				789,168		533,935
Total debt	[12],[13]	805,690			$ 546,750
Funding	[12],[13]	99,135
Unrealized gain and loss from ESN	[12],[13]
Payments	[12],[13]
Interest incurred	[12],[13]	60,035
Interest paid	[12],[13]	(60,117)
Exchange rate change	[12],[13]	159,887
Amortization of costs and premium	[12],[13]
Foreign currency long-term borrowings [member] | Term Loan [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Noncurrent | R$
Total debt
Short and long-term loans and financing [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Current | R$				2,353,279		2,543,039
Noncurrent | R$				7,623,687		5,866,802
Total debt | R$				9,976,966		8,409,841
Funding | R$			R$ 3370960
Unrealized gain and loss from ESN | R$			(374,994)
Payments | R$			(3,748,239)
Interest incurred | R$				698,990
Interest paid | R$			(615,027)
Exchange rate change | R$			2,207,107
Amortization of costs and premium | R$			R$ 28328
Local currency long-term borrowings [member] | Working capital - lines of credit [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[14]	10/2025	10/2025
Interest rate p.a.	[14]	6.48% p.a	6.48% p.a
Current | R$	[14]			239,615
Noncurrent | R$				17,275
Total debt | R$	[14]			256,890
Funding | R$	[14]		R$ 704172
Unrealized gain and loss from ESN | R$	[14]
Payments | R$	[14]		(450,532)
Interest incurred | R$	[14]			20,261
Interest paid | R$	[14]		(17,011)
Exchange rate change | R$	[14]
Amortization of costs and premium | R$	[14]
Local currency long-term borrowings [member] | Debentures VII [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Maturity of the contract	[15]	03/2022	03/2022
Interest rate p.a.	[15],[16]	3.41%	3.41%
Current | R$	[15]			440,918		289,423
Noncurrent | R$				146,170		289,302
Total debt | R$	[15]			587,088		R$ 578725
Funding | R$	[15]
Unrealized gain and loss from ESN | R$	[15]
Payments | R$	[15]
Interest incurred | R$	[15]			R$ 25936
Interest paid | R$	[15]		(23,638)
Exchange rate change | R$	[15]
Amortization of costs and premium | R$	[15]		R$ 6065
[1]	Backed financing raised by the subsidiary Gol Finance on August 31, 2020, with Delta Airlines, backed by Smiles' shares and other assets, maturing on December 30, 2021.
[2]	Term Loan raised by Gol Finance on August 31, 2016 for aircraft purchases and bank repayment of loans, with backstop guarantee from Delta Airlines.
[3]	Credit lines with private banks used to finance the import of spare parts and aeronautical equipment. The interest rates negotiated are Libor 3m + 4.40% p.a. and Libor 1m + 3.25% p.a.
[4]	Issuance of Senior Notes 2022 by the subsidiary Gol Finance on September 24, 2014, to renegotiate the Company's indebtedness.
[5]	Financing to perform engine maintenance services with Ex-Im Bank guarantee with an average rate of 0.81% p.a., in four transactions, with three transaction maturing in 2021 and one transaction maturing in 2022.
[6]	Exchangeable Senior Notes see Note 33.2.
[7]	Issuance of Exchangeable Senior Notes ("ESN") by the subsidiary Gol Finance in March, April and July 2019, totaling US$425 million maturing in 2024.
[8]	Loan backed by the Company's own engines, maturing in 2024.
[9]	Issuance of Senior Notes 2025 by the subsidiary Gol Finance on December 11, 2017 and February 2, 2018, to repurchase Senior Notes and general purposes of the Company.
[10]	Issuance of Secured Notes 2026 by the subsidiary Gol Finance on December 23, 2020 totaling US$200 million, maturing in 2026.
[11]	Loans with a guarantee of 5 engines in total, made on June 28, 2018. The contracted rates vary between Libor 6m + 2.35% p.a. until Libor 6m + 4.25% p.a.
[12]	Issuance of Perpetual Notes by Gol Finance on April 5, 2006 to finance aircraft purchase.
[13]	It includes the elimination of related parties, considering securities of this issue, carried out by Gol Finance, held by GLA on December 31, 2020, totaling R$10,609 (R$86,393 on December 31, 2019).
[14]	Issuance of transactions with the purpose maintaining and managing the Company's working capital.
[15]	Issuance of 88,750 debentures by GLA on October 22, 2018 for early settlement of the Debentures VI.
[16]	During the fiscal year ended on December 31, 2020, after Split there was division into three series: Series 1 with a CDI rate of 120%; Series 2 with CDI rate + 5.40% and Series 3 with CDI rate + 3.50%.

17. Loans and financing (Deta_2

17. Loans and financing (Details 1) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount	R$ 1837904
New Funding On April 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-Apr-20
Principal amount	R$ 21195
Interest rate (p.a.)	8.52%
Maturity Date	20-Jul-20
New Funding On April 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-Apr-20
Principal amount	R$ 72000
Interest rate (p.a.)	10.03%
Maturity Date	20-Jul-20
New Funding On April 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-Apr-20
Principal amount	R$ 94830
Interest rate (p.a.)	8.99%
Maturity Date	18-Aug-20
New Funding On May 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-May-20
Principal amount	R$ 147871
Interest rate (p.a.)	CDI + 6.9%
Maturity Date	07-Aug-20
New Funding On May 11, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	11-May-20
Principal amount	R$ 10013
Interest rate (p.a.)	8.60%
Maturity Date	10-Aug-20
New Funding On May 13, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	13-May-20
Principal amount	R$ 24000
Interest rate (p.a.)	CDI + 8%
Maturity Date	12-Mar-21
New Funding On May 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-May-20
Principal amount	R$ 254468
Interest rate (p.a.)	CDI + 2.5%
Maturity Date	09-Nov-20
New Funding On October 7, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	07-Oct-20
Principal amount	R$ 59795
Interest rate (p.a.)	8.58%
Maturity Date	07-Dec-20
New Funding On October 23, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	23-Oct-20
Principal amount	R$ 10000
Interest rate (p.a.)	6.90%
Maturity Date	23-Oct-25
New Funding On November 26, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	26-Nov-20
Principal amount	R$ 10000
Interest rate (p.a.)	10.69%
Maturity Date	19-May-23
New Funding [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount	R$ 704172
Renegotiations On April 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-Apr-20
Principal amount	R$ 94830
Interest rate (p.a.)	8.99%
Maturity Date	18-Aug-20
Renegotiations On May 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-May-20
Principal amount	R$ 105903
Interest rate (p.a.)	CDI + 6.9%
Maturity Date	07-Aug-20
Renegotiations On June 18, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	18-Jun-20
Principal amount	R$ 21195
Interest rate (p.a.)	8.52%
Maturity Date	20-Aug-20
Renegotiations On July 7, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	07-Jul-20
Principal amount	R$ 110903
Interest rate (p.a.)	CDI + 6.9%
Maturity Date	07-Aug-20
Renegotiations On July 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-Jul-20
Principal amount	R$ 50000
Interest rate (p.a.)	10.03%
Maturity Date	17-Nov-20
Renegotiations On August 7, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	07-Aug-20
Principal amount	R$ 44361
Interest rate (p.a.)	CDI + 6.9%
Maturity Date	05-Nov-20
Renegotiations On August 10, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	10-Aug-20
Principal amount	R$ 10013
Interest rate (p.a.)	8.60%
Maturity Date	30-Sep-20
Renegotiations On August 18, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	18-Aug-20
Principal amount	R$ 94830
Interest rate (p.a.)	8.99%
Maturity Date	30-Sep-20
Renegotiations On August 31, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	31-Aug-20
Principal amount	R$ 114666
Interest rate (p.a.)	CDI + 2.50%
Maturity Date	15-Mar-21
Renegotiations On September 2, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	02-Sep-20
Principal amount	R$ 37640
Interest rate (p.a.)	10.03%
Maturity Date	01-Dec-20
Renegotiations On September 30, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	30-Sep-20
Principal amount	R$ 94830
Interest rate (p.a.)	8.99%
Maturity Date	15-Dec-20
Renegotiations On September 30, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	30-Sep-20
Principal amount	R$ 10013
Interest rate (p.a.)	8.60%
Maturity Date	15-Dec-20
Renegotiations On December 7, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	07-Dec-20
Principal amount	R$ 59795
Interest rate (p.a.)	8.58%
Maturity Date	05-Mar-21
Renegotiations On December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount	R$ 94830
Interest rate (p.a.)	8.99%
Maturity Date	15-Mar-21
Renegotiations On December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount	R$ 10013
Interest rate (p.a.)	8.60%
Maturity Date	15-Mar-21
Renegotiations [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount	R$ 953822

17. Loans and financing (Deta_3

17. Loans and financing (Details 2) - 12 months ended Dec. 31, 2020 R$ in Thousands, $ in Thousands	USD ($)	BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | R$		R$ 1837904
USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 363,321
Renegotiations on January 2, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	02-Jan-20
Principal amount | R$		18,508
Interest rate (p.a.)	5.79%
Maturity Date	30-Jun-20
Renegotiations on January 2, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,335
Renegotiations on January 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	14-Jan-20
Principal amount | R$		19,516
Interest rate (p.a.)	6.22%
Maturity Date	13-May-20
Renegotiations on January 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,571
Renegotiations on January 17, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	17-Jan-20
Principal amount | R$		27,560
Interest rate (p.a.)	5.71%
Maturity Date	15-Jul-20
Renegotiations on January 17, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,455
Renegotiations on January 21, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	21-Jan-20
Principal amount | R$		36,696
Interest rate (p.a.)	6.22%
Maturity Date	20-May-20
Renegotiations on January 21, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 8,595
Renegotiations on January 24, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	24-Jan-20
Principal amount | R$		20,558
Interest rate (p.a.)	4.17%
Maturity Date	15-Jan-21
Renegotiations on January 24, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,815
Renegotiations on January 31, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	31-Jan-20
Principal amount | R$		25,297
Interest rate (p.a.)	5.63%
Maturity Date	29-Jul-20
Renegotiations on January 31, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,925
Renegotiations on February 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	14-Feb-20
Principal amount | R$		31,801
Interest rate (p.a.)	5.59%
Maturity Date	12-Aug-20
Renegotiations on February 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,069
Renegotiations on February 21, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	21-Feb-20
Principal amount | R$		29,381
Interest rate (p.a.)	5.56%
Maturity Date	19-Aug-20
Renegotiations on February 21, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,531
Renegotiations on April 16, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	16-Apr-20
Principal amount | R$		56,441
Interest rate (p.a.)	4.14%
Maturity Date	16-Jun-20
Renegotiations on April 16, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 10,400
Renegotiations on April 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	22-Apr-20
Principal amount | R$		29,344
Interest rate (p.a.)	8.60%
Maturity Date	20-Aug-20
Renegotiations on April 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,407
Renegotiations on April 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	22-Apr-20
Principal amount | R$		41,848
Interest rate (p.a.)	5.65%
Maturity Date	19-Oct-20
Renegotiations on April 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,711
Renegotiations on April 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	22-Apr-20
Principal amount | R$		32,850
Interest rate (p.a.)	5.65%
Maturity Date	19-Oct-20
Renegotiations on April 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,053
Renegotiations on April 24, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	24-Apr-20
Principal amount | R$		50,726
Interest rate (p.a.)	8.52%
Maturity Date	24-Aug-20
Renegotiations on April 24, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 9,347
Renegotiations on May 13, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	13-May-20
Principal amount | R$		19,516
Interest rate (p.a.)	7.93%
Maturity Date	10-Sep-20
Renegotiations on May 13, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,571
Renegotiations on May 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-May-20
Principal amount | R$		21,979
Interest rate (p.a.)	7.87%
Maturity Date	17-Sep-20
Renegotiations on May 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,148
Renegotiations on May 29, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	29-May-20
Principal amount | R$		39,042
Interest rate (p.a.)	5.12%
Maturity Date	25-Nov-20
Renegotiations on May 29, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,195
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-Jun-20
Principal amount | R$		57,148
Interest rate (p.a.)	4.95%
Maturity Date	05-Nov-20
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 10,436
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-Jun-20
Principal amount | R$		42,839
Interest rate (p.a.)	4.29%
Maturity Date	06-Oct-20
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,823
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-Jun-20
Interest rate (p.a.)	4.95%
Maturity Date	05-Nov-20
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-Jun-20
Principal amount | R$		38,277
Interest rate (p.a.)	4.29%
Maturity Date	06-Oct-20
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,990
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	08-Jun-20
Principal amount | R$		38,578
Interest rate (p.a.)	4.95%
Maturity Date	05-Nov-20
Renegotiations on June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,045
Renegotiations on June 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Jun-20
Principal amount | R$		4,025
Interest rate (p.a.)	4.98%
Maturity Date	14-Dec-20
Renegotiations on June 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 735
Renegotiations on June 16, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	16-Jun-20
Principal amount | R$		56,441
Interest rate (p.a.)	4.29%
Maturity Date	14-Oct-20
Renegotiations on June 16, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 10,400
Renegotiations on June 30, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	30-Jun-20
Principal amount | R$		18,508
Interest rate (p.a.)	4.92%
Maturity Date	29-Dec-20
Renegotiations on June 30, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,335
Renegotiations on July 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Jul-20
Principal amount | R$		27,560
Interest rate (p.a.)	4.87%
Maturity Date	11-Jan-21
Renegotiations on July 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,455
Renegotiations on July 29, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	29-Jul-20
Principal amount | R$		25,297
Interest rate (p.a.)	4.85%
Maturity Date	25-Jan-21
Renegotiations on July 29, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,925
Renegotiations on August 12, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	12-Aug-20
Principal amount | R$		31,801
Interest rate (p.a.)	4.32%
Maturity Date	25-Sep-20
Renegotiations on August 12, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,069
Renegotiations on August 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	14-Aug-20
Principal amount | R$		18,581
Interest rate (p.a.)	3.84%
Maturity Date	08-Jan-21
Renegotiations on August 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 3,396
Renegotiations on August 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	19-Aug-20
Principal amount | R$		29,381
Interest rate (p.a.)	4.30%
Maturity Date	02-Oct-20
Renegotiations on August 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,531
Renegotiations on August 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	20-Aug-20
Principal amount | R$		29,344
Interest rate (p.a.)	7.75%
Maturity Date	18-Dec-20
Renegotiations on August 20, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,407
Renegotiations on August 24, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	24-Aug-20
Principal amount | R$		50,726
Interest rate (p.a.)	7.76%
Maturity Date	22-Dec-20
Renegotiations on August 24, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 9,347
Renegotiations on September 10, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	10-Sep-20
Principal amount | R$		19,516
Interest rate (p.a.)	7.75%
Maturity Date	08-Jan-21
Renegotiations on September 10, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,571
Renegotiations on September 17, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	17-Sep-20
Principal amount | R$		21,979
Interest rate (p.a.)	7.75%
Maturity Date	15-Jan-21
Renegotiations on September 17, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,148
Renegotiations on September 25, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	25-Sep-20
Principal amount | R$		31,801
Interest rate (p.a.)	4.35%
Maturity Date	15-Dec-20
Renegotiations on September 25, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,069
Renegotiations on October 2, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	02-Oct-20
Principal amount | R$		29,381
Interest rate (p.a.)	4.36%
Maturity Date	15-Dec-20
Renegotiations on October 2, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,531
Renegotiations on October 6, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	06-Oct-20
Principal amount | R$		42,839
Interest rate (p.a.)	2.93%
Maturity Date	04-Jan-21
Renegotiations on October 6, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,823
Renegotiations on October 6, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	06-Oct-20
Principal amount | R$		38,277
Interest rate (p.a.)	2.93%
Maturity Date	04-Jan-21
Renegotiations on October 6, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,990
Renegotiations on October 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	14-Oct-20
Principal amount | R$		56,441
Interest rate (p.a.)	2.92%
Maturity Date	09-Jan-21
Renegotiations on October 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 10,400
Renegotiations on October 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	19-Oct-20
Principal amount | R$		41,848
Interest rate (p.a.)	4.74%
Maturity Date	15-Dec-20
Renegotiations on October 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,711
Renegotiations on October 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	19-Oct-20
Principal amount | R$		32,850
Interest rate (p.a.)	4.74%
Maturity Date	15-Dec-20
Renegotiations on October 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,053
Renegotiations on November 5, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	05-Nov-20
Principal amount | R$		52,778
Interest rate (p.a.)	2.92%
Maturity Date	03-Feb-21
Renegotiations on November 5, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 9,638
Renegotiations on November 5, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	05-Nov-20
Principal amount | R$		57,148
Interest rate (p.a.)	2.92%
Maturity Date	03-Feb-21
Renegotiations on November 5, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 10,436
Renegotiations on November 5, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	05-Nov-20
Principal amount | R$		38,578
Interest rate (p.a.)	2.92%
Maturity Date	03-Feb-21
Renegotiations on November 5, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,045
Renegotiations on November 12, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	12-Nov-20
Principal amount | R$		35,554
Interest rate (p.a.)	2.91%
Maturity Date	10-Feb-21
Renegotiations on November 12, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,668
Renegotiations on November 25, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	25-Nov-20
Principal amount | R$		39,042
Interest rate (p.a.)	4.42%
Maturity Date	15-Dec-20
Renegotiations on November 25, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,195
Renegotiations on December 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	14-Dec-20
Principal amount | R$		4,025
Interest rate (p.a.)	4.76%
Maturity Date	15-Mar-21
Renegotiations on December 14, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 735
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount | R$		29,381
Interest rate (p.a.)	4.54%
Maturity Date	15-Mar-21
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,531
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount | R$		41,848
Interest rate (p.a.)	4.54%
Maturity Date	15-Mar-21
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,711
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount | R$		32,850
Interest rate (p.a.)	4.54%
Maturity Date	15-Mar-21
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 6,053
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount | R$		39,042
Interest rate (p.a.)	4.54%
Maturity Date	15-Mar-21
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,195
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	15-Dec-20
Principal amount | R$		31,801
Interest rate (p.a.)	4.54%
Maturity Date	15-Mar-21
Renegotiations on December 15, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 7,069
Renegotiations on December 18, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	18-Dec-20
Principal amount | R$		29,344
Interest rate (p.a.)	7.76%
Maturity Date	16-Jun-21
Renegotiations on December 18, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,407
Renegotiations on December 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	22-Dec-20
Principal amount | R$		50,726
Interest rate (p.a.)	7.76%
Maturity Date	21-Jun-21
Renegotiations on December 22, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 9,347
Renegotiations on December 29, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	29-Dec-20
Principal amount | R$		18,508
Interest rate (p.a.)	4.78%
Maturity Date	29-Mar-21
Renegotiations on December 29, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 4,335
Import Financing On June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | R$		52,778
Import Financing On June 8, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 9,638
New funding on February 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	February 19, 2020
Principal amount | R$		R$ 25974
Interest rate (p.a.)	4.07%
Maturity Date	February 13, 2021
New funding on February 19, 2020 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 5,920

17. Loans and financing (Deta_4

17. Loans and financing (Details 3) R$ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2020BRL (R$)	Jan. 31, 2020BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount		R$ 1837904
USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 363,321
Secured funding [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount			R$ 833171
Secured funding [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	August 31, 2020
Principal amount		R$ 1367825
Interest rate (p.a.)	9.50%
Maturity Date	December 30, 2021
Secured funding [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 250,000

17. Loans and financing (Deta_5

17. Loans and financing (Details 4) - 12 months ended Dec. 31, 2020 R$ in Thousands, $ in Thousands	USD ($)	BRL (R$)	BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | R$			R$ 1837904
USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 363,321
Financing with Ex-lm Bank collateral [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	June 19, 2020	June 19, 2020
Principal amount | R$			R$ 129263
Cost | R$		R$ 5189
Interest rate (p.a.)	Libor 6M + 0.6%	Libor 6M + 0.6%
Maturity Date	December 23, 2022	December 23, 2022
Financing with Ex-lm Bank collateral [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 25,000
Cost | $	$ 1,003

17. Loans and financing (Deta_6

17. Loans and financing (Details 5) - 12 months ended Dec. 31, 2020 R$ in Thousands, $ in Thousands	USD ($)	BRL (R$)	BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | R$			R$ 1837904
USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 363,321
Secured notes 2026 [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	December 23, 2020	December 23, 2020
Principal amount | R$			R$ 1039340
Cost | R$		R$ 86831
Interest rate (p.a.)	8.00% p.a.	8.00% p.a.
Maturity Date	June 30, 2026	June 30, 2026
Secured notes 2026 [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 200,000
Cost | $	$ 16,750

17. Loans and financing (Deta_7

17. Loans and financing (Details 6) - 12 months ended Dec. 31, 2020 R$ in Thousands, $ in Thousands	USD ($)	BRL (R$)	BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | R$			R$ 1837904
USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 363,321
Loan facility [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Transaction date	March 20, 2020	March 20, 2020
Principal amount | R$			R$ 60847
Cost | R$		R$ 898
Interest rate (p.a.)	Libor 1M + 3.33%	Libor 1M + 3.33%
Maturity Date	March 20, 2028	March 20, 2028
Loan facility [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $	$ 12,000
Cost | $	$ 177

17. Loans and Financing (Deta_8

17. Loans and Financing (Details 7) R$ in Thousands, $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2020BRL (R$)	Dec. 31, 2019BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		R$ 2353279	R$ 2543039
2022 [Default Label]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		257,682
2023 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		59,788
2024 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		2,083,252
2025 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		3,376,993
2025 onwards [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		1,056,804
Without maturity date [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		789,168
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		17,275
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		7,543
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member] | 2023 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		4,752
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member] | 2024 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		2,500
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member] | 2025 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		2,480
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member] | 2025 onwards [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Working capital - lines of credit [member] | Foreign currency long-term borrowings [member] | Without maturity date [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Debentures VII [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		146,170
Debentures VII [member] | Local currency long-term borrowings [member] | 2022 [Default Label]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		146,170
Debentures VII [member] | Local currency long-term borrowings [member] | 2023 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Debentures VII [member] | Local currency long-term borrowings [member] | 2024 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Debentures VII [member] | Local currency long-term borrowings [member] | 2025 [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Debentures VII [member] | Local currency long-term borrowings [member] | 2025 onwards [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Debentures VII [member] | Local currency long-term borrowings [member] | Without maturity date [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$
Financing with Ex-lm Bank collateral [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	$ 49,958
Financing with Ex-lm Bank collateral [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	49,958
Financing with Ex-lm Bank collateral [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Financing with Ex-lm Bank collateral [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Financing with Ex-lm Bank collateral [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
ESN [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	1,896,854
ESN [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
ESN [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
ESN [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	1,896,854
ESN [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Spare engine facility [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	197,009
Spare engine facility [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	23,075
Spare engine facility [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	23,075
Spare engine facility [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	150,859
Spare engine facility [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Senior notes 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	3,340,316
Senior notes 2025 [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Senior notes 2025 [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Senior notes 2025 [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Senior notes 2025 [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	3,340,316
Secured notes 2026 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	953,802
Secured notes 2026 [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Secured notes 2026 [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Secured notes 2026 [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Secured notes 2026 [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Secured notes 2026 [member] | Foreign currency long-term borrowings [member] | 2025 onwards [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	953,802
Loan facility [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	233,135
Loan facility [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	30,936
Loan facility [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	31,961
Loan facility [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	33,039
Loan facility [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	34,197
Loan facility [member] | Foreign currency long-term borrowings [member] | 2025 onwards [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	103,002
Perpetual bonds [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing	789,168
Perpetual bonds [member] | Foreign currency long-term borrowings [member] | 2022 [Default Label] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Perpetual bonds [member] | Foreign currency long-term borrowings [member] | 2023 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Perpetual bonds [member] | Foreign currency long-term borrowings [member] | 2024 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Perpetual bonds [member] | Foreign currency long-term borrowings [member] | 2025 [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing
Perpetual bonds [member] | Foreign currency long-term borrowings [member] | Without maturity date [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Loans and financing | R$		R$ 789168

17. Loans and financing (Deta_9

17. Loans and financing (Details 8) R$ in Thousands	Dec. 31, 2020BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Book value	R$ 9976966
Fair value	9,698,896
Debentures [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Book value	587,088
Fair value	591,666
Secured funding [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Book value	484,113
Fair value	484,113
Exchangeable Senior Notes Derivatives [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Book value	1,934,814
Fair value	1,948,441
Senior Notes and Perpetual Notes [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Book value	5,200,177
Fair value	4,903,902
Other [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Book value	1,770,774
Fair value	R$ 1770774

17. Loans and financing (Det_10

17. Loans and financing (Details Narrative) R$ in Thousands, $ in Thousands	Oct. 22, 2018shares	Dec. 31, 2020USD ($)	Dec. 31, 2020BRL (R$)	Dec. 31, 2019USD ($)	Dec. 31, 2019BRL (R$)	Dec. 31, 2020BRL (R$)	Aug. 31, 2020BRL (R$)	Jan. 31, 2020BRL (R$)
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount						R$ 1837904
Total debt issuance costs			R$ 189195		R$ 143119
Interest paid			484,113
Premiums costs			189,195		143,119
Elimination of related parties			R$ 10609		86,393
USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $		$ 363,321
Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Issuance of debentures | shares	148,000
Description of Issuance of transactions		(a) Issuance of transactions with the purpose maintaining and managing the Company's working capital. (b) Issuance of 88,750 debentures by GLA on October 22, 2018 for early settlement of the Debentures VI. (c) Term Loan raised by Gol Finance on August 31, 2016 for aircraft purchases and bank repayment of loans, with backstop guarantee from Delta Airlines. (d) Credit lines with private banks used to finance the import of spare parts and aeronautical equipment. The interest rates negotiated are Libor 3m + 4.40% p.a. and Libor 1m + 3.25% p.a. (e) Backed financing raised by the subsidiary Gol Finance on August 31, 2020, with Delta Airlines, backed by Smiles’ shares and other assets, maturing on December 30, 2021. (f) Issuance of Senior Notes 2022 by the subsidiary Gol Finance on September 24, 2014, to renegotiate the Company's indebtedness. (g) Financing to perform engine maintenance services with Ex-Im Bank guarantee with an average rate of 0.81% p.a., in four transactions, with three transaction maturing in 2021 and one transaction maturing in 2022. (h) Issuance of Exchangeable Senior Notes (“ESN”) by the subsidiary Gol Finance in March, April and July 2019, totaling US$425 million maturing in 2024. (i) Loan backed by the Company's own engines, maturing in 2024. (j) Issuance of Senior Notes 2025 by the subsidiary Gol Finance on December 11, 2017 and February 2, 2018, to repurchase Senior Notes and general purposes of the Company. (k) Issuance of Secured Notes 2026 by the subsidiary Gol Finance on December 23, 2020 totaling US$200 million, maturing in 2026. (l) Loans with a guarantee of 5 engines in total, made on June 28, 2018. The contracted rates vary between Libor 6m + 2.35% p.a. until Libor 6m + 4.25% p.a. (m) Issuance of Perpetual Notes by Gol Finance on April 5, 2006 to finance aircraft purchase.	(a) Issuance of transactions with the purpose maintaining and managing the Company's working capital. (b) Issuance of 88,750 debentures by GLA on October 22, 2018 for early settlement of the Debentures VI. (c) Term Loan raised by Gol Finance on August 31, 2016 for aircraft purchases and bank repayment of loans, with backstop guarantee from Delta Airlines. (d) Credit lines with private banks used to finance the import of spare parts and aeronautical equipment. The interest rates negotiated are Libor 3m + 4.40% p.a. and Libor 1m + 3.25% p.a. (e) Backed financing raised by the subsidiary Gol Finance on August 31, 2020, with Delta Airlines, backed by Smiles’ shares and other assets, maturing on December 30, 2021. (f) Issuance of Senior Notes 2022 by the subsidiary Gol Finance on September 24, 2014, to renegotiate the Company's indebtedness. (g) Financing to perform engine maintenance services with Ex-Im Bank guarantee with an average rate of 0.81% p.a., in four transactions, with three transaction maturing in 2021 and one transaction maturing in 2022. (h) Issuance of Exchangeable Senior Notes (“ESN”) by the subsidiary Gol Finance in March, April and July 2019, totaling US$425 million maturing in 2024. (i) Loan backed by the Company's own engines, maturing in 2024. (j) Issuance of Senior Notes 2025 by the subsidiary Gol Finance on December 11, 2017 and February 2, 2018, to repurchase Senior Notes and general purposes of the Company. (k) Issuance of Secured Notes 2026 by the subsidiary Gol Finance on December 23, 2020 totaling US$200 million, maturing in 2026. (l) Loans with a guarantee of 5 engines in total, made on June 28, 2018. The contracted rates vary between Libor 6m + 2.35% p.a. until Libor 6m + 4.25% p.a. (m) Issuance of Perpetual Notes by Gol Finance on April 5, 2006 to finance aircraft purchase.
Secured funding [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount								R$ 833171
Amortized cost			R$ 157000
Secured funding [member] | Gol linhas aereas S.A. ("GLA") [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount						1,367,825
Interest rate p.a.		9.50%	9.50%
Secured funding [member] | Gol linhas aereas S.A. ("GLA") [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Principal amount | $		$ 250,000
Exchangeable Senior Notes Derivatives [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Fair value of the derivative financial instrument			R$ 346030
Derivatives liabilities					626,557	R$ 54479
Percentage of capped call premium		85.00%	85.00%
Exchangeable Senior Notes Derivatives [member] | USD
DisclosureOfLoansAndFinancingLineItems [Line Items]
Fair value of the derivative financial instrument | $		$ 42,226		$ 54,479
Percentage of exchange premium		35.00%	35.00%
Exchangeable Senior Notes Derivatives [member] | American Depositary Shares [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Fair value of the derivative financial instrument					R$ 626557
Delta Airlines backed [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Other assets							R$ 250000
Funding [member]
DisclosureOfLoansAndFinancingLineItems [Line Items]
Other assets							R$ 1367825

18. Leases (Details)

18. Leases (Details) R$ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2020BRL (R$)
PresentationOfLeasesForLesseeLineItems [Line Items]
Current right of use leases at beginning		R$ 1404712
Non current right of use leases at beginning		4,648,068
Total right of use leases at beginning		6,052,780
Additions		454,248
Write-offs		(704,164)
Contractual amendment		221,248
Payments		(1,058,692)
Deposit in guarantee		(44,736)
Interest incurred		818,529
Interest paid		(4,530)
Exchange rate change		1,833,257
Current right of use leases at ending		1,317,008
Non current right of use leases at ending		6,267,184
Total right of use leases at ending		R$ 7567940
Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Weighted average rate (p.a.)	13.11%	13.11%
Current right of use leases at beginning		R$ 21781
Non current right of use leases at beginning		23,026
Total right of use leases at beginning		44,807
Additions		5,189
Write-offs
Contractual amendment		399
Payments		(15,044)
Deposit in guarantee
Interest incurred		12,164
Interest paid
Exchange rate change
Current right of use leases at ending		32,530
Non current right of use leases at ending		14,985
Total right of use leases at ending		47,515
Total [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Current right of use leases at beginning		1,382,931
Non current right of use leases at beginning		4,625,042
Total right of use leases at beginning		6,007,973
Additions		449,059
Write-offs		(704,164)
Contractual amendment		220,849
Payments		(1,043,648)
Deposit in guarantee		(44,736)
Interest incurred		806,365
Interest paid		(4,530)
Exchange rate change		1,833,257
Current right of use leases at ending		1,268,226
Non current right of use leases at ending		6,252,199
Total right of use leases at ending		R$ 7520425
USD | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Weighted average rate (p.a.)	12.03%	12.03%
Current right of use leases at beginning | $	$ 1,253,995
Non current right of use leases at beginning | $	4,205,148
Total right of use leases at beginning | $	5,459,143
Additions | $	449,059
Write-offs | $	(85,678)
Contractual amendment | $	220,849
Payments | $	(1,017,599)
Deposit in guarantee | $	(44,736)
Interest incurred | $	801,773
Interest paid | $
Exchange rate change | $	1,737,614
Current right of use leases at ending | $	1,268,226
Non current right of use leases at ending | $	6,252,199
Total right of use leases at ending | $	$ 7,520,425
USD | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Weighted average rate (p.a.)	3.72%	3.72%
Current right of use leases at beginning | $	$ 128,936
Non current right of use leases at beginning | $	419,894
Total right of use leases at beginning | $	548,830
Additions | $
Write-offs | $	(618,486)
Contractual amendment | $
Payments | $	(26,049)
Deposit in guarantee | $
Interest incurred | $	4,592
Interest paid | $	(4,530)
Exchange rate change | $	95,643
Current right of use leases at ending | $
Non current right of use leases at ending | $
Total right of use leases at ending | $

18. Leases (Details 1)

18. Leases (Details 1) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		R$ 594642
Less total interest		(45,812)
Present value of minimum lease payments		548,830
Less current portion		(128,936)
Noncurrent portion		419,894
Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments	R$ 10708530	6,984,434
Less total interest	(3,124,338)	(1,480,484)
Present value of minimum lease payments	7,584,192	5,503,950
Less current portion	(1,317,008)	(1,275,776)
Noncurrent portion	6,267,184	4,228,174
2020 [member] | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		148,613
2020 [member] | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		1,691,357
2021 [member] | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		148,744
2021 [member] | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments	2,102,771	1,324,403
2022 [member] | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		207,654
2022 [member] | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments	1,982,685	1,125,060
2023 [member] | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		72,801
2023 [member] | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments	1,642,264	904,627
2024 Thereafter [member] | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		11,279
2024 Thereafter [member] | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments	1,260,405	651,245
Thereafter [member] | Lease With Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments		5,551
Thereafter [member] | Lease Without Purchase Option [member]
PresentationOfLeasesForLesseeLineItems [Line Items]
Total minimum lease payments	R$ 3720405	R$ 1287742

18. Lease (Details Narrative)

18. Lease (Details Narrative) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Presentation of leases for lessee [abstract]
Net gain from aircraft sale leaseback	R$ 551942	R$ 7924
Leases payable	16,252
Future lease payments		R$ 7567940
Cost from services	R$ 33721

19. Suppliers (Details)

19. Suppliers (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
DisclosureOfSuppliersLineItems [Line Items]
Total	R$ 1645194	R$ 1296417
Current	1,612,536	1,286,275
Non-current	32,658	10,142
Local currency [member]
DisclosureOfSuppliersLineItems [Line Items]
Total	1,164,193	833,781
Foreign currency [member]
DisclosureOfSuppliersLineItems [Line Items]
Total	R$ 481001	R$ 462636

20. Suppliers - forfeiting (Det

20. Suppliers - forfeiting (Details Narrative) R$ in Thousands	Dec. 31, 2019BRL (R$)
Suppliers - Forfeiting
Suppliers - forfeiting	R$ 554467

21. Taxes payable (Details)

21. Taxes payable (Details) - BRL (R$) R$ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Taxes Payable
PIS and COFINS		R$ 23647	R$ 39133
Installment payments - PRT and PERT	[1]	41,641	2,117
Withholding income tax on salaries		33,011	54,649
ICMS		472	424
IRPJ and CSLL payable		13	9,496
Other		7,192	10,788
Total		105,976	116,607
Current		73,614	116,523
Non-current		R$ 32362	R$ 84
[1]	In the fiscal year ended December 31, 2020, the Company made the installment of PIS and COFINS contributions in the ordinary amount totaling R$43,945, for a period of 60 months, having already paid this year the total of R$4,443, including interest.

21. Taxes payable (Details Narr

21. Taxes payable (Details Narrative) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Taxes Payable
Installment of PIS and COFINS contributions	R$ 43945
PIS and COFINS contributions period	60 months
Tax paid	R$ 4443

22. Advance ticket sales (Detai

22. Advance ticket sales (Details Narrative) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)Number	Dec. 31, 2019BRL (R$)Number
Advance Ticket Sales
Advances from ticket sales	R$ 2050799	R$ 1966148
Unused tickets sales | Number	6,691,911	6,239,179
Average period	102 days	59 days
Net of breakage	R$ 299188	R$ 415688
Non-performed transports	R$ 253963

23. Mileage program (Details)

23. Mileage program (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
DisclosureOfMileageProgramLineItems [Line Items]
Total	R$ 1580962	R$ 1180674
Current	1,258,502	1,009,023
Non-current	322,460	171,651
Mileage program [member]
DisclosureOfMileageProgramLineItems [Line Items]
Total	2,145,097	1,755,985
Others [member]
DisclosureOfMileageProgramLineItems [Line Items]
Total	5,817	1,764
Breakage [member]
DisclosureOfMileageProgramLineItems [Line Items]
Total	R$ 569952	R$ 577075

24. Provisions (Details)

24. Provisions (Details) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of changes in other provisions [Roll Forward]
Balance as of beginning of period		R$ 1257056
Recognition (reversal) of provision		240,237
Provisions used		(301,296)
Changing of assumptions		(24,541)
Plan experience		10,706
Adjustment to present value		74,097
Exchange rate change		266,637
Balance as of end of period		1,522,896
Current			R$ 169381	R$ 203816
Non-current			1,353,515	1,053,240
Total		1,522,896	1,522,896	1,257,056
Provisions for Post-Employment Benefit [member]
Reconciliation of changes in other provisions [Roll Forward]
Balance as of beginning of period		96,760
Recognition (reversal) of provision		10,136
Provisions used
Changing of assumptions		(24,541)
Plan experience		10,706
Adjustment to present value		6,488
Exchange rate change
Balance as of end of period		99,549
Current
Non-current			99,549	96,760
Total		99,549	99,549	96,760
Provisions for Aircraft & Engine Return [member]
Reconciliation of changes in other provisions [Roll Forward]
Balance as of beginning of period		869,078
Recognition (reversal) of provision		(58,702)
Provisions used		(113,805)
Changing of assumptions
Plan experience
Adjustment to present value		67,609
Exchange rate change		266,735
Balance as of end of period		1,030,915
Current			169,381	203,816
Non-current			861,534	665,262
Total		1,030,915	1,030,915	869,078
Provisions for Legal Proceedings [member]
Reconciliation of changes in other provisions [Roll Forward]
Balance as of beginning of period	[1]	291,218
Recognition (reversal) of provision	[1]	288,803
Provisions used	[1]	(187,491)
Changing of assumptions	[1]
Plan experience	[1]
Adjustment to present value	[1]
Exchange rate change	[1]	(98)
Balance as of end of period	[1]	392,432
Current
Non-current			392,432	291,218
Total	[1]	R$ 392432	R$ 392432	R$ 291218
[1]	The provisions used consider write-offs due to the revaluation of estimates and settled processes.

24. Provisions (Details 1)

24. Provisions (Details 1) - Post employment benefit [member] - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted average of assumptions to determine the defined benefit obligation
Nominal discount rate p.a.	7.88%	7.23%
Actual discount rate p.a.	4.23%	3.60%
Long-term estimated inflation rate p.a.	3.00%	3.50%
HCCTR - Nominal medical inflation rate p.a.	6.35%	6.86%
HCCTR - Actual medical inflation rate p.a.	3.25%	3.25%
Mortality table	AT-2000 with improvement of 10%	AT-2000 with improvement of 10%
Weighted average of assumptions to determine the cost (revenue) of the defined benefit
Nominal discount rate	7.23%	9.93%
Actual discount rate p.a.	4.23%	5.70%
Long-term estimated inflation rate	3.50%	4.00%
HCCTR - Nominal medical inflation rate p.a.	6.86%	7.38%
HCCTR - Actual medical inflation rate p.a.	3.25%	3.25%
Mortality table	AT-2000 with improvement of 10%	AT-2000 with improvement of 10%
Current service cost recognized in income (expenses)	R$ 10136
Cost of interests recognized in income (expenses)	6,488
Total	R$ 16624

24. Provisions (Details 2)

24. Provisions (Details 2) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Provisions [Line Items]
Probable loss in provisions	R$ 392432	R$ 291218
Possible loss in provisions	877,239	886,538
Civil [member]
Disclosure of Provisions [Line Items]
Probable loss in provisions	100,806	78,119
Possible loss in provisions	64,181	62,473
Labor [member]
Disclosure of Provisions [Line Items]
Probable loss in provisions	269,297	210,699
Possible loss in provisions	238,702	237,253
Taxes [member]
Disclosure of Provisions [Line Items]
Probable loss in provisions	22,329	2,400
Possible loss in provisions	R$ 574356	R$ 586812

24. Provisions (Details Narrati

24. Provisions (Details Narrative) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Provisions [Line Items]
Goodwill	R$ 65611	R$ 110741
Additional financial effect of claims	574,356	586,812
Estimated financial effect of claims, total	108,515	93,545
Customs penalty	66,091	64,923
Tax on services	25,655	24,809
Goodwill acquisition	88,631	86,998
Gol linhas aereas S.A. ("GLA") [member]
Disclosure of Provisions [Line Items]
Additional financial effect of claims	R$ 94790	82,301
Additional non-incidence percenatge imports	1.00%
Smiles S.A. ("Smiles") [member]
Disclosure of Provisions [Line Items]
Estimated financial effect of claims	R$ 126410	R$ 123495

25. Shareholders' equity (Detai

25. Shareholders' equity (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
EquityAbstractLineItems [Line Items]
Percentage of shares held	100.00%	100.00%
Fundo Volluto [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	22.99%	23.00%
Mobi FIA [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	28.93%	28.94%
Air France - KLM [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	1.19%	1.19%
Other [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	1.47%	1.73%
Market [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	45.41%	45.14%
Common shares [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	100.00%	100.00%
Common shares [member] | Fundo Volluto [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	100.00%	100.00%
Common shares [member] | Mobi FIA [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held
Common shares [member] | Air France - KLM [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held
Common shares [member] | Other [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held
Common shares [member] | Market [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held
Preferred Share [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	100.00%	100.00%
Preferred Share [member] | Fundo Volluto [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held
Preferred Share [member] | Mobi FIA [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	37.57%	37.59%
Preferred Share [member] | Air France - KLM [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	1.55%	1.55%
Preferred Share [member] | Other [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	1.91%	2.23%
Preferred Share [member] | Market [member]
EquityAbstractLineItems [Line Items]
Percentage of shares held	58.97%	58.63%

25. Shareholders' Equity (Det_2

25. Shareholders' Equity (Details Narrative) - BRL (R$) R$ / shares in Units, R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
EquityAbstractLineItems [Line Items]
Number of shares issued	3,137,706,967
Number of shares reduced	155,618	155,618
Authorized capital stock	R$ 6000000
Treasury shares	R$ 62215	R$ 102543
Market value of treasury shares	R$ 24.94	R$ 36.80
Subscribed capital fully paid-up	R$ 3009436
Preferred Shares [member]
EquityAbstractLineItems [Line Items]
Number of shares issued	274,024,257
Common Share [member]
EquityAbstractLineItems [Line Items]
Number of shares issued	2,863,682,710
Treasury shares [member]
EquityAbstractLineItems [Line Items]
Treasury shares	R$ 1824034	R$ 3006390

26. Earnings (loss) per share_2

26. Earnings (loss) per share (Details) - BRL (R$) R$ / shares in Units, R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Numerator
Net income (loss) for the year Attributable to equity holders of the parent	R$ 5988128	R$ 117273	R$ 1085393
Common Share [member]
Numerator
Net income (loss) for the year Attributable to equity holders of the parent	R$ 1377078	R$ 27269	R$ 254828
Denominator
Weighted average number of outstanding shares	2,863,683	2,863,683	2,863,683
Adjusted weighted average number of outstanding shares and diluted presumed conversions	2,863,683	2,863,683	2,863,683
Basic earnings (loss) per share (in R$ per shares)	R$ 0.481	R$ 0.010	R$ 0.089
Diluted earnings (loss) per share (in R$ per shares)	R$ 0.481	R$ 0.010	R$ 0.089
Preferred Share [member]
Numerator
Net income (loss) for the year Attributable to equity holders of the parent	R$ 4611050	R$ 90004	R$ 830565
Denominator
Weighted average number of outstanding shares	273,967	270,053	266,676
Adjusted weighted average number of outstanding shares and diluted presumed conversions	273,967	270,053	266,676
Basic earnings (loss) per share (in R$ per shares)	R$ 16.831	R$ 0.333	R$ 3.115
Diluted earnings (loss) per share (in R$ per shares)	R$ 16.831	R$ 0.333	R$ 3.115

27. Share-based payments (Detai

27. Share-based payments (Details)	12 Months Ended
	Dec. 31, 2020sharesyrR$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Approval Date	Dec. 31, 2020
Total options granted	14,084,654
Number of options outstanding	7,529,612
Exercise price of the option (in Reais) | R$ / shares	R$ 11.59
Exercise prices R$ 9.35 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2015
Approval Date	Aug. 11, 2015
Total options granted	1,930,844
Number of options outstanding	601,793
Exercise price of the option (in Reais) | R$ / shares	R$ 9.35
Fair value at grant date (in Reais) | R$ / shares	R$ 3.37	[1]
Estimate volatility of share price	55.57%
Expected dividend yield	5.06%
Risk-free return rate	13.25%
Average remaining maturity (in years) | yr	4.5
Exercise prices R$ 11.31 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2014
Approval Date	Aug. 12, 2014
Total options granted	653,130
Number of options outstanding	197,661
Exercise price of the option (in Reais) | R$ / shares	R$ 11.31
Fair value at grant date (in Reais) | R$ / shares	R$ 7.98	[2]
Estimate volatility of share price	52.66%
Expected dividend yield	3.27%
Risk-free return rate	11.00%
Average remaining maturity (in years) | yr	3.5
Exercise prices R$ 12.76 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2013
Approval Date	May 13, 2013
Total options granted	802,296
Number of options outstanding	220,413
Exercise price of the option (in Reais) | R$ / shares	R$ 12.76
Fair value at grant date (in Reais) | R$ / shares	R$ 6.54	[3]
Estimate volatility of share price	46.91%
Expected dividend yield	2.00%
Risk-free return rate	7.50%
Average remaining maturity (in years) | yr	2.3
Exercise prices R$ 12.81 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2012
Approval Date	Oct. 19, 2012
Total options granted	778,912
Number of options outstanding	227,183
Exercise price of the option (in Reais) | R$ / shares	R$ 12.81
Fair value at grant date (in Reais) | R$ / shares	R$ 5.32	[4]
Estimate volatility of share price	52.25%
Expected dividend yield	2.26%
Risk-free return rate	9.00%
Average remaining maturity (in years) | yr	1.7
Exercise prices R$ 2.62 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2016
Approval Date	Jun. 30, 2016
Total options granted	5,742,732
Number of options outstanding	3,121,220
Exercise price of the option (in Reais) | R$ / shares	R$ 2.62
Fair value at grant date (in Reais) | R$ / shares	R$ 1.24	[5]
Estimate volatility of share price	98.20%
Expected dividend yield	6.59%
Risk-free return rate	14.25%
Average remaining maturity (in years) | yr	5.4
Exercise prices R$ 8.44 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2017
Approval Date	Aug. 8, 2017
Total options granted	947,767
Number of options outstanding	548,604
Exercise price of the option (in Reais) | R$ / shares	R$ 8.44
Fair value at grant date (in Reais) | R$ / shares	R$ 7.91	[6]
Estimate volatility of share price	80.62%
Expected dividend yield	1.17%
Risk-free return rate	11.25%
Average remaining maturity (in years) | yr	6.6
Exercise prices R$ 20.18 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2018
Approval Date	May 24, 2018
Total options granted	718,764
Number of options outstanding	450,695
Exercise price of the option (in Reais) | R$ / shares	R$ 20.18
Fair value at grant date (in Reais) | R$ / shares	R$ 12.68	[7]
Estimate volatility of share price	55.58%
Expected dividend yield	0.60%
Risk-free return rate	6.50%
Average remaining maturity (in years) | yr	7.4
Exercise prices R$ 25.40 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2019
Approval Date	Dec. 11, 2019
Total options granted	1,749,223
Number of options outstanding	1,506,606
Exercise price of the option (in Reais) | R$ / shares	R$ 25.40
Fair value at grant date (in Reais) | R$ / shares	R$ 12.10	[8]
Estimate volatility of share price	61.98%
Expected dividend yield	3.17%
Risk-free return rate	9.00%
Average remaining maturity (in years) | yr	8.8
Exercise Prices R$ 20.57 [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant Year	2020
Approval Date	Jul. 30, 2020
Total options granted	760,986
Number of options outstanding	655,437
Exercise price of the option (in Reais) | R$ / shares	R$ 20.57
Fair value at grant date (in Reais) | R$ / shares	R$ 14.44	[9]
Estimate volatility of share price	71.37%
Expected dividend yield	0.92%
Risk-free return rate	6.24%
Average remaining maturity (in years) | yr	9.6
[1]	The fair value is calculated by the average value from R$3.61, R$3.30 and R$3.19 for the respective vesting periods (2015, 2016 and 2017).
[2]	The fair value is calculated by the average value from R$8.20, R$7.89 and R$7.85 for the respective vesting periods (2014, 2015 and 2016).
[3]	The fair value is calculated by the average value from R$7.34, R$6.58 and R$5.71 for the respective vesting periods (2013, 2014 and 2015).
[4]	The fair value is calculated by the average value from R$6.04, R$5.35 and R$4.56 for the respective vesting periods (2012, 2013 and 2014).
[5]	On July 27, 2016, an additional grant of 900,000 shares referring to the 2016 plan was approved. The fair value was calculated by the average value from R$1.29, R$1.21 and R$1.22 for the respective vesting periods (2017, 2018 and 2019).
[6]	The fair value is calculated by the average value from R$8.12, R$7.88 and R$7.72 for the respective vesting periods (2017, 2018 and 2019).
[7]	The fair value is calculated by the average value from R$13.26, R$12.67 and R$12.11 for the respective vesting periods (2018, 2019 and 2020).
[8]	The fair value is calculated by the average value from R$12.90, R$12.32 and R$11.65 for the respective vesting periods (2019, 2020 and 2021).
[9]	The fair value is calculated by the average value from R$15.39, R$14.89, R$14.31 and R$13.64 for the respective vesting periods (2020, 2021, 2022 and 2023).

27. Share-based payments (Det_2

27. Share-based payments (Details 1)	12 Months Ended
	Dec. 31, 2020sharesR$ / shares
Share-based Payment Award, Options, Outstanding [Roll Forward]
Options granted | shares	14,084,654
Share-based Payment Award, Weighted Average Exercise Price [Roll Forward]
Options granted | R$ / shares	R$ 11.59
Stock option plan [member]
Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding at beginning | shares	7,660,855
Number of options exercisable at beginnig | shares	5,939,631
Options granted | shares	655,437	[1]
Options exercised | shares	(452,899)
Options canceled and adjustments in estimated prescribed rights | shares	(333,781)
Options outstanding at ending | shares	7,529,612
Number of options exercisable at ending | shares	5,752,726
Share-based Payment Award, Weighted Average Exercise Price [Roll Forward]
Options outstanding at beginning | R$ / shares	R$ 7.11
Number of options exercisable at beginning | R$ / shares	8.42
Options granted | R$ / shares	20.57	[1]
Options exercised | R$ / shares	4.09
Options canceled and adjustments in estimated prescribed rights | R$ / shares	22.06
Options outstanding at ending | R$ / shares	11.59
Number of options exercisable at ending | R$ / shares	R$ 8.42
[1]	Plan granted on July 30, 2020.

27. Share-based payments (Det_3

27. Share-based payments (Details 2)	12 Months Ended
	Dec. 31, 2020sharesR$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Approval date	Dec. 31, 2020
Total shares granted	7,120,068
Total vested shares	1,203,483
Restricted shares plan one [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant year	2016
Approval date	Jun. 30, 2016
Total shares granted	4,007,081
Average fair value at grant date | R$ / shares	R$ 2.62
Restricted shares plan two [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant year	2017
Approval date	Aug. 8, 2017
Total shares granted	1,538,213
Total vested shares
Average fair value at grant date | R$ / shares	R$ 8.44
Restricted shares plan three [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant year	2018
Approval date	May 24, 2018
Total shares granted	773,463
Total vested shares	513,314
Average fair value at grant date | R$ / shares	R$ 20.18
Restricted shares plan four [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant year	2020
Approval date	Jul. 30, 2020
Total shares granted	801,311
Total vested shares	690,169
Average fair value at grant date | R$ / shares	R$ 20.57

27. Share-based payments (Det_4

27. Share-based payments (Details 3) - Restricted shares plan [member]	12 Months Ended
	Dec. 31, 2020shares
Restricted shares [Roll forward]
Restricted shares outstanding as beginning	1,533,996
Restricted shares granted	801,311
Shares transferred	(1,182,356)	[1]
Restricted shares cancelled and adjustments in estimated expired rights	50,532
Restricted shares outstanding as ending	1,203,483
[1]	During the fiscal year ended on December 31, 2020, the Company transferred 1,182,356 shares via equity instruments (treasury shares).

27. Share-based payments (Det_5

27. Share-based payments (Details 4)	12 Months Ended
	Dec. 31, 2020sharesyrR$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of the board meeting	Dec. 31, 2020
Total options granted	14,084,654
Exercise price of the option (in reais) | R$ / shares	R$ 11.59
Smiles S.A. ("Smiles") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Date of the board meeting	Dec. 31, 2020
Total options granted	3,508,043
Number of options outstanding	975,000
Exercise price of the option (in reais) | R$ / shares	R$ 48.42
Exercise prices R$ 4.25 [member] | Smiles S.A. ("Smiles") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Year of grant	2013
Date of the board meeting	Aug. 8, 2013
Total options granted	1,058,043
Number of options outstanding
Exercise price of the option (in reais) | R$ / shares	R$ 21.70
The fair value of the option at grant date (in reais) | R$ / shares	R$ 4.25	[1]
Estimate volatility of share price	36.35%
Expected dividend yield	6.96%
Risk-free return rate	7.40%
Average remaining maturity | yr	3.5
Exercise prices R$ 4.90 [member] | Smiles S.A. ("Smiles") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Year of grant	2014
Date of the board meeting	Feb. 4, 2014
Total options granted	1,150,000
Number of options outstanding
Exercise price of the option (in reais) | R$ / shares	R$ 31.28
The fair value of the option at grant date (in reais) | R$ / shares	R$ 4.90	[2]
Estimate volatility of share price	33.25%
Expected dividend yield	10.67%
Risk-free return rate	9.90%
Average remaining maturity | yr	4
Exercise prices R$ 8.93 [member] | Smiles S.A. ("Smiles") [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Year of grant	2018
Date of the board meeting	Jul. 31, 2018
Total options granted	1,300,000
Number of options outstanding	975,000
Exercise price of the option (in reais) | R$ / shares	R$ 48.42
The fair value of the option at grant date (in reais) | R$ / shares	R$ 8.93	[3]
Estimate volatility of share price	41.28%
Expected dividend yield	9.90%
Risk-free return rate	6.39%
Average remaining maturity | yr	8.6
[1]	Average fair value in Brazilian Reais calculated for the 2013 Stock Options was R$4.84 and R$4.20 for the vesting periods in 2013 and 2014, and R$3.73 for the vesting periods in 2015 and 2016.
[2]	Average fair value In Brazilian Reais calculated for the 2014 Stock Options was R$4.35, R$4.63, R$4.90, R$5.15 and R$5.37 for the respective vesting periods from 2014 to 2018.
[3]	Average fair value In Brazilian Reais calculated for the 2018 Stock Options was R$8.17, R$8.63, R$9.14 and R$9.77 for the respective vesting periods of 2019, 2020, 2021 and 2022.

27. Share-based payments (Det_6

27. Share-based payments (Details Narrative) R$ / shares in Units, R$ in Thousands

Jul. 27, 2017shares

Dec. 31, 2023R$ / shares

Dec. 31, 2022R$ / shares

Dec. 31, 2021R$ / shares

Dec. 31, 2020BRL (R$)sharesR$ / shares

Dec. 31, 2019BRL (R$)R$ / sharesshares

Dec. 31, 2018BRL (R$)R$ / shares

Dec. 31, 2017R$ / shares

Dec. 31, 2016R$ / shares

Dec. 31, 2015R$ / shares

Dec. 31, 2014R$ / shares

Dec. 31, 2013R$ / shares

Dec. 31, 2012R$ / shares

Disclosure of terms and conditions of share-based payment arrangement [line items]

Equity share-based payments | R$

R$ 23430

R$ 18572

Stock option plan [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Period of stock options exercised | shares

10

Equity share-based payments | R$

R$ 18572

Stock option plans expenses | R$

R$ 12063

40,735

Stock option plan [member] | Smiles S.A. ("Smiles") [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Period of stock options exercised | shares

10

Balance of obligation for granted additional bonuses | R$

R$ 1881

R$ 6079

Number of shares for balance of obligation | shares

119,784

120,586

Share Price One

R$ 23.45

R$ 39.27

Stock option plan [member] | Smiles S.A. ("Smiles") [member] | Share based compensation vesting tranche one [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Vesting percentage

20.00%

Stock option plan [member] | Smiles S.A. ("Smiles") [member] | Share based compensation vesting tranche two [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Vesting percentage

30.00%

Stock option plan [member] | Smiles S.A. ("Smiles") [member] | Share based compensation vesting tranche three [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Vesting percentage

50.00%

Stock option plan [member] | Smiles S.A. ("Smiles") [member] | Exercise prices R$ 8.93 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 9.77

R$ 9.14

R$ 8.63

8.17

Stock option plan [member] | Smiles S.A. ("Smiles") [member] | Exercise prices R$ 4.90 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 13.64

R$ 14.31

14.89

15.39

R$ 5.37

R$ 5.15

R$ 4.90

R$ 4.63

R$ 4.35

Stock option plan [member] | Smiles S.A. ("Smiles") [member] | Exercise prices R$ 4.25 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

3.73

3.73

4.20

R$ 4.84

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Share Price One

R$ 36.80

24.94

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Share based compensation vesting tranche one [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Vesting percentage

20.00%

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Share based compensation vesting tranche two [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Vesting percentage

30.00%

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Share based compensation vesting tranche three [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Vesting percentage

50.00%

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 25.40 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 11.65

R$ 12.32

12.90

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 20.18 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 12.11

12.67

13.26

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 8.44 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

7.72

7.88

8.12

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 2.62 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Number of additional share grant | shares

900,000

Weighted average value at grant date

R$ 1.22

R$ 1.21

1.29

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 9.35 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 3.19

3.30

3.61

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 11.31 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 7.85

7.89

8.20

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 12.76 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 5.71

6.58

7.34

Stock option plan [member] | Gol Linhas Aereas Inteligentes S.A [member] | Exercise prices R$ 12.81 [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Weighted average value at grant date

R$ 4.56

R$ 5.35

R$ 6.04

Restricted shares plan [member]

Disclosure of terms and conditions of share-based payment arrangement [line items]

Stock option plans expenses | R$

R$ 8976

R$ 5315

28. Transactions with related_3

28. Transactions with related parties (Details) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of transactions between related parties [line items]
Salaries,wages and benefits		R$ 1765628	R$ 2361268	R$ 1903852
Share-based payments		23,430	40,725	18,572
Key management personnel [member]
Disclosure of transactions between related parties [line items]
Salaries,wages and benefits	[1]	35,147	69,609	75,979
Related taxes and charges		13,454	15,813	11,062
Share-based payments		15,509	8,880	10,234
Total		R$ 64110	R$ 94302	R$ 97275
[1]	Includes payment for members of Management, audit committee, and fiscal council.

28. Transactions with related_4

28. Transactions with related parties (Details Narrative) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Oct. 27, 2020
Disclosure of transactions between related parties [line items]
Current liabilities	R$ 10398216	R$ 10362600
Amount of issued debt			R$ 250000
Preferred Share [member]
Disclosure of transactions between related parties [line items]
Amount of issued debt			R$ 20000
Air France - KLM [member]
Disclosure of transactions between related parties [line items]
Expenses with component maintenance	171,290	284,691
Suppliers [member]
Disclosure of transactions between related parties [line items]
Expense related to services	5,779	10,560
Payable to related companies	3,344	1,822
Current liabilities	R$ 72519	R$ 142241

29. Revenue (Details)

29. Revenue (Details) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net revenue
Passenger transportation	[1]	R$ 5958848	R$ 13461470	R$ 11148292
Cargo transportation		316,318	411,054	400,959
Mileage program		341,197	446,871	446,448
Other revenue		47,053	113,253	95,681
Gross revenue		6,663,416	14,432,648	12,091,380
Related tax		(291,599)	(567,944)	(680,026)
Net revenue		R$ 6371817	R$ 13864704	R$ 11411354
[1]	Of the total amount, the total of R$252,730 for the fiscal year ended on December 31, 2020, is made up of the revenue from non-attendance of passengers, rescheduling, ticket cancellation (R$583,242 and R$479,136 for the years ended December 31, 2019 and 2018, respectively).

29. Revenue (Details 1)

29. Revenue (Details 1) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
DisclosureOfRevenueAbstractLineItems [Line Items]
Revenue ratio	100.00%	100.00%	100.00%
Net revenue	R$ 6371817	R$ 13864704	R$ 11411354
Domestic [member]
DisclosureOfRevenueAbstractLineItems [Line Items]
Revenue ratio	88.60%	86.30%	85.30%
Net revenue	R$ 5642471	R$ 11965181	R$ 9729498
International [member]
DisclosureOfRevenueAbstractLineItems [Line Items]
Revenue ratio	11.40%	13.70%	14.70%
Net revenue	R$ 729346	R$ 1899523	R$ 1681856

29. Revenue (Details Narrative)

29. Revenue (Details Narrative) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net revenue
Revenues from unused passenger tickets, reissued tickets and cancellation of flight tickets	R$ 252730	R$ 583242	R$ 479136

30. Financial results (Details)

30. Financial results (Details) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financial income
Gain on derivatives		R$ 59669	R$ 84862	R$ 17838
Gains from financial investments		182,966	225,535	161,223
Inflation indexation		28,043	42,967	78,169
(-) Taxes on financial income	[1]	(38,553)	(26,818)	(20,372)
Unrealized gains - conversion right - ESN		374,994	16,148
Interest income			7,451
Other		129,850	39,418	22,870
Total financial income		736,969	389,563	259,728
Financial expenses
Loss with derivatives		(428,060)	(86,990)	(51,674)
Derivative losses - capped call		(74,728)	(23,229)
Unrealized loss - conversion right		(836,596)	(778,557)	(710,787)
Bank charges and expenses		(119,641)	(73,171)	(75,673)
Exchange offer costs				(53,952)
Losses from financial investments		(65,403)	(111,679)	(33,999)
Interest on Leases		(818,529)	(488,278)
Other		(203,235)	(186,361)	(135,004)
Total financial expenses		(2,546,192)	(1,748,265)	(1,061,089)
Foreign exchange rate change, net		(3,056,226)	(385,092)	(1,081,197)
Total		R$ 4865449	R$ 1743794	R$ 1882558
[1]	Relative to taxes on Financial Revenues (PIS and COFINS), according to Decree 8,426 of April 1, 2015.

31. Segments (Details)

31. Segments (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Current	R$ 3245351	R$ 4927377
Non-current	9,568,785	10,371,069
Total assets	12,814,136	15,298,446
Liabilities
Current	10,398,216	10,362,600
Non-current	16,182,979	12,041,263
Total equity (deficit)	(13,767,059)	(7,105,417)	R$ 4505351	R$ 3088521
Total liabilities and equity (deficit)	12,814,136	15,298,446
Flight Transportation [member]
Assets
Current	2,059,655	3,243,363
Non-current	10,040,986	10,888,299
Total assets	12,100,641	14,131,662
Liabilities
Current	9,975,367	9,941,112
Non-current	16,532,366	11,867,062
Total equity (deficit)	(14,407,092)	(7,676,512)
Total liabilities and equity (deficit)	12,100,641	14,131,662
Smiles Loyalty Program [member]
Assets
Current	2,453,838	2,763,448
Non-current	908,246	121,135
Total assets	3,362,084	2,884,583
Liabilities
Current	1,502,179	1,321,534
Non-current	509,577	357,714
Total equity (deficit)	1,350,328	1,205,335
Total liabilities and equity (deficit)	3,362,084	2,884,583
Total Reportable Segments [member]
Assets
Current	4,513,493	6,006,811
Non-current	10,949,232	11,009,434
Total assets	15,462,725	17,016,245
Liabilities
Current	11,477,546	11,262,646
Non-current	17,041,943	12,224,776
Total equity (deficit)	(13,056,764)	(6,471,177)
Total liabilities and equity (deficit)	15,462,725	17,016,245
Eliminations [member]
Assets
Current	(1,268,142)	(1,079,434)
Non-current	(1,380,447)	(638,365)
Total assets	(2,648,589)	(1,717,799)
Liabilities
Current	(1,079,330)	(900,046)
Non-current	(858,964)	(183,513)
Total equity (deficit)	(710,295)	(634,240)
Total liabilities and equity (deficit)	R$ 2648589	R$ 1717799

31. Segments (Details 1)

31. Segments (Details 1) - BRL (R$) R$ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net revenue
Passenger		R$ 5783323	R$ 13077743	R$ 10633488
Cargo and Other		303,507	425,088	409,633
Mileage program		284,987	361,873	368,233
Net revenue		6,371,817	13,864,704	11,411,354
Operating costs and expenses
Salaries, wages and benefits		(1,765,628)	(2,361,268)	(1,903,852)
Aircraft fuel		(2,025,701)	(4,047,344)	(3,867,673)
Aircraft rent				(1,112,837)
Sales and marketing		(324,185)	(670,392)	(581,977)
Landing fees		(411,065)	(759,774)	(743,362)
Aircraft, traffic and mileage servicing		(723,244)	(707,392)	(613,768)
Maintenance, materials and repairs		(335,868)	(569,229)	(570,333)
Depreciation and amortization		(1,870,552)	(1,727,982)	(668,516)
Passenger service expenses		(389,998)	(578,744)	(474,117)
Other income (expenses), net		523,019	(309,917)	524,656
Total operating costs and expenses		(7,323,222)	(11,732,042)	(10,011,779)
Equity results		(439)	77	387
Operating result before financial result, net and income tax and social contribution		(951,844)	2,132,739	1,399,962
Financial results
Financial income		736,969	389,563	259,728
Financial expenses		(2,546,192)	(1,748,265)	(1,061,089)
Total financial results		(1,809,223)	(1,358,702)	(801,361)
Income before exchange rate variation, net		(2,761,067)	774,037	598,601
Exchange rate change, net		(3,056,226)	(385,092)	(1,081,197)
Loss before income tax and social contribution		(5,817,293)	388,945	(482,596)
Income and social contribution taxes		(77,958)	(209,607)	(297,128)
Net income (loss) for the year		(5,895,251)	179,338	(779,724)
Attributable to equity holders of the parent		(5,988,128)	(117,273)	(1,085,393)
Attributable to non-controlling interests of Smiles		92,877	296,611	305,669
Flight Transportation [member]
Net revenue
Passenger		5,555,546	12,592,018	10,199,092
Cargo and Other		340,237	463,651	422,432
Mileage program
Net revenue		5,895,783	13,055,669	10,621,524
Operating costs and expenses
Salaries, wages and benefits		(1,675,183)	(2,270,009)	(1,821,521)
Aircraft fuel		(2,025,701)	(4,047,344)	(3,867,673)
Aircraft rent				(1,112,837)
Sales and marketing		(257,533)	(587,445)	(507,721)
Landing fees		(411,065)	(759,774)	(743,362)
Aircraft, traffic and mileage servicing		(639,903)	(766,483)	(661,260)
Maintenance, materials and repairs		(335,868)	(569,229)	(570,333)
Depreciation and amortization		(1,841,975)	(1,701,115)	(651,158)
Passenger service expenses		(389,998)	(578,744)	(474,117)
Other income (expenses), net		524,882	(354,302)	483,699
Total operating costs and expenses		(7,052,344)	(11,634,445)	(9,926,283)
Equity results		99,278	294,976	315,721
Operating result before financial result, net and income tax and social contribution		(1,057,283)	1,716,200	1,010,962
Financial results
Financial income		719,560	636,554	166,348
Financial expenses		(2,604,993)	(2,116,438)	(1,185,889)
Total financial results		(1,885,433)	(1,479,884)	(1,019,541)
Income before exchange rate variation, net		(2,942,716)	236,316	(8,579)
Exchange rate change, net		(3,058,275)	390,454	(1,084,543)
Loss before income tax and social contribution		(6,000,991)	(154,138)	(1,093,122)
Income and social contribution taxes		12,863	36,865	7,729
Net income (loss) for the year		(5,988,128)	(117,273)	(1,085,393)
Attributable to equity holders of the parent		(5,988,128)	(117,273)	(1,085,393)
Attributable to non-controlling interests of Smiles
Smiles Loyalty Program [member]
Net revenue
Passenger	[1]
Cargo and Other	[1]
Mileage program	[1]	572,916	1,051,124	987,444
Net revenue	[1]	572,916	1,051,124	987,444
Operating costs and expenses
Salaries, wages and benefits	[1]	(90,444)	(91,259)	(82,331)
Aircraft fuel	[1]
Aircraft rent	[1]
Sales and marketing	[1]	(57,225)	(82,947)	(74,256)
Landing fees	[1]
Aircraft, traffic and mileage servicing	[1]	(183,519)	(128,590)	(107,489)
Maintenance, materials and repairs	[1]
Depreciation and amortization	[1]	(28,577)	(26,868)	(17,358)
Passenger service expenses	[1]
Other income (expenses), net	[1]	(2,898)	44,384	35,959
Total operating costs and expenses	[1]	(362,663)	(285,280)	(245,475)
Equity results	[1]		(2,530)
Operating result before financial result, net and income tax and social contribution	[1]	210,253	763,314	741,969
Financial results
Financial income	[1]	89,503	125,455	220,628
Financial expenses	[1]	(13,295)	(4,273)	(2,326)
Total financial results	[1]	76,208	121,182	218,302
Income before exchange rate variation, net	[1]	286,461	884,496	960,271
Exchange rate change, net	[1]	2,049	4,669	3,223
Loss before income tax and social contribution	[1]	288,510	889,165	963,494
Income and social contribution taxes	[1]	(92,553)	(271,156)	(317,652)
Net income (loss) for the year	[1]	195,957	618,009	645,842
Attributable to equity holders of the parent	[1]	103,080	321,398	340,173
Attributable to non-controlling interests of Smiles	[1]	92,877	296,611	305,669
Total Reportable Segments [member]
Net revenue
Passenger		5,555,546	12,592,018	10,199,092
Cargo and Other		340,237	463,651	422,432
Mileage program		572,916	1,051,124	987,444
Net revenue		6,468,699	14,106,793	11,608,968
Operating costs and expenses
Salaries, wages and benefits		(1,765,627)	(2,361,268)	(1,903,852)
Aircraft fuel		(2,025,701)	(4,047,344)	(3,867,673)
Aircraft rent				(1,112,837)
Sales and marketing		(314,758)	(670,392)	(581,977)
Landing fees		(411,065)	(759,774)	(743,362)
Aircraft, traffic and mileage servicing		(823,422)	(895,073)	(768,749)
Maintenance, materials and repairs		(335,868)	(569,229)	(570,333)
Depreciation and amortization		(1,870,552)	(1,727,983)	(668,516)
Passenger service expenses		(389,998)	(578,744)	(474,117)
Other income (expenses), net		521,984	(309,918)	519,658
Total operating costs and expenses		(7,415,007)	(11,919,725)	(10,171,758)
Equity results		99,278	292,446	315,721
Operating result before financial result, net and income tax and social contribution		(847,030)	2,479,514	1,752,931
Financial results
Financial income		809,063	762,009	386,976
Financial expenses		(2,618,288)	(2,120,711)	(1,188,215)
Total financial results		(1,809,225)	(1,358,702)	(801,239)
Income before exchange rate variation, net		(2,656,255)	1,120,812	951,692
Exchange rate change, net		(3,056,226)	(385,785)	(1,081,320)
Loss before income tax and social contribution		(5,712,481)	735,027	(129,628)
Income and social contribution taxes		(79,690)	(234,291)	(309,923)
Net income (loss) for the year		(5,792,171)	500,736	(439,551)
Attributable to equity holders of the parent		(5,885,048)	204,125	(745,220)
Attributable to non-controlling interests of Smiles		92,877	296,611	305,669
Eliminations [member]
Net revenue
Passenger		227,777	485,725	434,396
Cargo and Other		(36,730)	(38,563)	(12,799)
Mileage program		(287,929)	(689,251)	(619,211)
Net revenue		(96,882)	(242,089)	(197,614)
Operating costs and expenses
Salaries, wages and benefits		(1)
Aircraft fuel
Aircraft rent
Sales and marketing		(9,427)
Landing fees
Aircraft, traffic and mileage servicing		(100,178)	187,681	154,981
Maintenance, materials and repairs
Depreciation and amortization			1
Passenger service expenses
Other income (expenses), net		1,035	1	4,998
Total operating costs and expenses		91,785	187,683	159,979
Equity results		99,717	(292,369)	(315,334)
Operating result before financial result, net and income tax and social contribution		(104,814)	(346,775)	(352,969)
Financial results
Financial income		(72,094)	(372,446)	(127,248)
Financial expenses		(72,096)	372,446	127,126
Total financial results		2		(122)
Income before exchange rate variation, net		(104,812)	(346,775)	(353,091)
Exchange rate change, net			693	123
Loss before income tax and social contribution		(104,812)	(346,082)	(352,968)
Income and social contribution taxes		1,732	24,684	12,795
Net income (loss) for the year		(103,080)	(321,398)	(340,173)
Attributable to equity holders of the parent		R$ 103080	(321,398)	(340,173)
Attributable to non-controlling interests of Smiles
[1]	Amounts include Smiles S.A. and Smiles Fidelidade.

32. Commitments (Details)

32. Commitments (Details) - Business Combinations [member] - Aircraft [member] - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Commitments [Line Items]
Future commitments resulting from firm aircraft orders	R$ 23269198	R$ 29600947
Future commitments resulting from operating lease	8,315,768	9,245,057
2020 [member]
Disclosure of Commitments [Line Items]
Future commitments resulting from operating lease		1,169,967
2021 [member]
Disclosure of Commitments [Line Items]
Future commitments resulting from firm aircraft orders		3,201,198
Future commitments resulting from operating lease	184,951	1,152,456
2022 [member]
Disclosure of Commitments [Line Items]
Future commitments resulting from firm aircraft orders		3,690,205
Future commitments resulting from operating lease	1,287,077	1,300,668
2023 [member]
Disclosure of Commitments [Line Items]
Future commitments resulting from firm aircraft orders	3,353,702	4,103,490
Future commitments resulting from operating lease	2,657,000	1,366,345
2024 Thereafter [member]
Disclosure of Commitments [Line Items]
Future commitments resulting from firm aircraft orders	19,915,496	18,606,054
Future commitments resulting from operating lease	R$ 4186740	R$ 4255621

32. Commitments (Details Narrat

32. Commitments (Details Narrative) - Business Combinations [member] - Aircraft [member] R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)Number	Dec. 31, 2019BRL (R$)Number
Disclosure of Commitments [Line Items]
Number of firm orders | Number	95	129
Future commitments resulting from firm aircraft orders	R$ 23269198	R$ 29600947
Future commitments resulting from operating lease	R$ 8315768	9,245,057
Number of aircrafts commercial leases | Number	127
USD
Disclosure of Commitments [Line Items]
Future commitments resulting from firm aircraft orders	R$ 4447687	R$ 7343873
Future commitments resulting from operating lease	R$ 1600202

33. Financial instruments and_3

33. Financial instruments and risk management (Details) - BRL (R$) R$ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Assets
Cash equivalents		R$ 234018	R$ 1226978
Restricted cash		544,607	444,306
Liabilities
Suppliers - forfeiting			554,467
Fair Value [member]
Assets
Cash and bank deposits		428,812
Cash equivalents		234,018	5,505
Short-term Investments		629,335	953,762
Restricted cash		544,607	444,306
Trade receivables
Derivative assets		128,809	147,469
Deposits	[1]
Other credits and amounts
Liabilities
Loans and financing	[2]	346,030	626,557
Leases
Suppliers
Suppliers - forfeiting
Derivatives liabilities		5,297	20,350
Other labilities
Amortized Cost [member]
Assets
Cash and bank deposits			418,447
Cash equivalents			1,221,473
Short-term Investments
Restricted cash
Trade receivables		739,699	1,229,530
Derivative assets
Deposits	[1]	1,390,890	1,126,609
Other credits and amounts		179,160	140,006
Liabilities
Loans and financing	[2]	9,630,936	7,783,284
Leases		7,584,192	6,052,780
Suppliers		1,645,194	1,296,417
Suppliers - forfeiting			554,467
Derivatives liabilities
Other labilities		R$ 618754	R$ 164709
[1]	Excludes court deposits, as described in Note 13.
[2]	The amounts on December 31, 2020 and 2019, classified as measured at fair value through profit or loss, are related to the derivative contracted through Exchange Senior Notes.

33. Financial instruments and_4

33. Financial instruments and risk management (Details 1) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair value changes
Gains (losses) recognized in equity valuation adjustments	R$ 766102	R$ 71066	R$ 420706
Changes in the adjustment of equity valuation
Effects on income (expenses)	278,491
Aircraft Fuel - Operating Costs [member]
Fair value changes
Rights (obligations) with derivatives as of beginning	(20,350)
Gains (losses) recognized in income (expenses)
Gains (losses) recognized as exchange rate change
Gains (losses) recognized in equity valuation adjustments	(744,973)
Settlements (payments received) during the year	799,489
Rights (obligations) with derivatives as of ending	34,166	(20,350)
Derivative assets	39,463
Loans and financing
Derivatives liabilities	(5,297)
Changes in the adjustment of equity valuation
Balances as of beginning	(53,243)
Fair value adjustments during the year	(744,973)
Adjustments of hedge accounting of revenue
Net reversal to income (expenses)	318,140
Derecognition of hedge object	315,286
Balances as of ending	(164,789)	(53,243)
Effects on income (expenses)	(633,426)
Interest Rate Risk Derivative Contracts [member]
Fair value changes
Rights (obligations) with derivatives as of beginning
Gains (losses) recognized in income (expenses)
Gains (losses) recognized as exchange rate change
Gains (losses) recognized in equity valuation adjustments
Settlements (payments received) during the year
Rights (obligations) with derivatives as of ending
Derivative assets
Loans and financing
Derivatives liabilities
Changes in the adjustment of equity valuation
Balances as of beginning	(311,364)
Fair value adjustments during the year
Adjustments of hedge accounting of revenue
Net reversal to income (expenses)	8,158
Derecognition of hedge object
Balances as of ending	(303,207)	(311,364)
Effects on income (expenses)	(8,158)
Foreign Currency Risk Derivatives [member]
Fair value changes
Rights (obligations) with derivatives as of beginning	3,500
Gains (losses) recognized in income (expenses)	18,210
Gains (losses) recognized as exchange rate change
Gains (losses) recognized in equity valuation adjustments
Settlements (payments received) during the year	(20,027)
Rights (obligations) with derivatives as of ending	1,683	3,500
Derivative assets	1,683
Loans and financing
Derivatives liabilities
Changes in the adjustment of equity valuation
Balances as of beginning
Fair value adjustments during the year
Adjustments of hedge accounting of revenue
Net reversal to income (expenses)
Derecognition of hedge object
Balances as of ending
Effects on income (expenses)	18,210
Derivative Losses Capped Call - Interest Expenses [member]
Fair value changes
Rights (obligations) with derivatives as of beginning	143,969
Gains (losses) recognized in income (expenses)	(74,728)
Gains (losses) recognized as exchange rate change	18,422
Gains (losses) recognized in equity valuation adjustments
Settlements (payments received) during the year
Rights (obligations) with derivatives as of ending	87,663	143,969
Derivative assets	87,663
Loans and financing
Derivatives liabilities
Changes in the adjustment of equity valuation
Balances as of beginning
Fair value adjustments during the year
Adjustments of hedge accounting of revenue
Net reversal to income (expenses)
Derecognition of hedge object
Balances as of ending
Effects on income (expenses)	(56,306)
Exchangeable Senior Notes Derivatives [member]
Fair value changes
Rights (obligations) with derivatives as of beginning	(626,557)
Gains (losses) recognized in income (expenses)	374,994
Gains (losses) recognized as exchange rate change	(94,467)
Gains (losses) recognized in equity valuation adjustments
Settlements (payments received) during the year
Rights (obligations) with derivatives as of ending	(346,030)	(626,557)
Derivative assets
Loans and financing	(346,030)
Derivatives liabilities
Changes in the adjustment of equity valuation
Balances as of beginning
Fair value adjustments during the year
Adjustments of hedge accounting of revenue
Net reversal to income (expenses)
Derecognition of hedge object
Balances as of ending
Effects on income (expenses)	280,527
Revenue Hedge Non-Derivative [member]
Fair value changes
Rights (obligations) with derivatives as of beginning
Gains (losses) recognized in income (expenses)
Gains (losses) recognized as exchange rate change
Gains (losses) recognized in equity valuation adjustments
Settlements (payments received) during the year
Rights (obligations) with derivatives as of ending
Derivative assets
Loans and financing
Derivatives liabilities
Changes in the adjustment of equity valuation
Balances as of beginning	(165,436)
Fair value adjustments during the year
Adjustments of hedge accounting of revenue	(993,532)
Net reversal to income (expenses)	25,543
Derecognition of hedge object	290,345
Balances as of ending	(843,080)	(165,436)
Effects on income (expenses)	677,644
Total Derivative Financial Instruments [member]
Fair value changes
Rights (obligations) with derivatives as of beginning	(499,438)
Gains (losses) recognized in income (expenses)	318,476
Gains (losses) recognized as exchange rate change	(76,045)
Gains (losses) recognized in equity valuation adjustments	(744,973)
Settlements (payments received) during the year	779,462
Rights (obligations) with derivatives as of ending	(222,518)	(499,438)
Derivative assets	128,809
Loans and financing	(346,030)
Derivatives liabilities	(5,297)
Changes in the adjustment of equity valuation
Balances as of beginning	(530,043)
Fair value adjustments during the year	(744,973)
Adjustments of hedge accounting of revenue	(993,532)
Net reversal to income (expenses)	351,841
Derecognition of hedge object	605,631
Balances as of ending	(1,311,076)	R$ 530043
Effects on income (expenses)	R$ 278491

33. Financial instruments and_5

33. Financial instruments and risk management (Details 2) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Total effects on income (expenses)	R$ 278491
USD revenue [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Net revenue
Total effects on income (expenses)	R$ 16086
USD revenue [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Exchange rate change
Total effects on income (expenses)	R$ 693730
Fuel [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Aircraft fuel
Total effects on income (expenses)	R$ 249328
Fuel [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Financial income (expenses)
Total effects on income (expenses)	R$ 384098
Interest rate - lease [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Financial income (expenses)
Total effects on income (expenses)	R$ 8158
Conversion right - ESN [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Financial income (expenses)
Total effects on income (expenses)	R$ 374994
Conversion right - ESN [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Exchange rate change
Total effects on income (expenses)	R$ 94467
Capped call - ESN [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Financial income (expenses)
Total effects on income (expenses)	R$ 74728
Capped call - ESN [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Exchange rate change
Total effects on income (expenses)	R$ 18422
Foreign currency rate [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Classification	Exchange rate change
Total effects on income (expenses)	R$ 18210

33. Financial instruments and_6

33. Financial instruments and risk management (Details 3) - Cash Flow Hedges [member] R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Disclosure of reconciliation of liabilities arising from financing activities [line items]
2021	R$ 289422
2022	279,748
2023	328,497
2024	200,774
2025 onwards	212,635
Aircraft Fuel - Operating Costs [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
2021	154,973
2022	9,816
2023
2024
2025 onwards
Interest Rate Swap Contract [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
2021	15,878
2022	21,707
2023	26,575
2024	26,412
2025 onwards	212,635
Revenue Derivatives [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
2021	118,571
2022	248,225
2023	301,922
2024	174,362
2025 onwards

33. Financial instruments and_7

33. Financial instruments and risk management (Details 4) - Aircraft Fuel - Operating Costs [member] - Fuel Risk [member] R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Decline In Prices/Barrel (-25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	35.81
Total exposure	R$ 95280
Decline In Prices/Barrel (-10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	43.67
Total exposure	R$ 27835
Increase In Prices/Barrel (+10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	53.49
Total exposure	R$ 110033
Increase In Prices/Barrel (+25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	59.68
Total exposure	R$ 283818

33. Financial instruments and_8

33. Financial instruments and risk management (Details 5) - Interest Rate Risk [member] R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Short-Term Investments Net of Financial Debt [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Risk	CDI rate drop	[1]
Reference rates	1.90%	[1]
Exposure amount (probable scenario)	R$ 565397	[1],[2]
Short-Term Investments Net of Financial Debt [member] | Possible Favorable Scenario (-25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	1,179
Short-Term Investments Net of Financial Debt [member] | Remote Favorable Scenario (-10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	426
Short-Term Investments Net of Financial Debt [member] | Possible Adverse Scenario (+25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	(426)
Short-Term Investments Net of Financial Debt [member] | Remote Adverse Scenario (+10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	R$ 1179
Short And Long Term Debt Net Of Short Term Investments [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Risk	Libor rate increase	[1]
Reference rates	0.08%	[1]
Exposure amount (probable scenario)	R$ 3201557	[1],[2]
Short And Long Term Debt Net Of Short Term Investments [member] | Possible Favorable Scenario (-25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	(622)
Short And Long Term Debt Net Of Short Term Investments [member] | Remote Favorable Scenario (-10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	(249)
Short And Long Term Debt Net Of Short Term Investments [member] | Possible Adverse Scenario (+25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	622
Short And Long Term Debt Net Of Short Term Investments [member] | Remote Adverse Scenario (+10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Possible adverse scenario	R$ 249
[1]	Refers to the sum of the amounts invested and raised in the financial market and indexed to the CDI and Libor rates.
[2]	Book balances recorded as of December 31, 2020.

33. Financial instruments and_9

33. Financial instruments and risk management (Details 6) R$ in Thousands	Dec. 31, 2020BRL (R$)	Dec. 31, 2019BRL (R$)
Assets
Recoverable taxes	R$ 318404	R$ 174142
Deposits	2,058,455	1,968,355
Total assets	12,814,136	15,298,446
Liabilities
Loans and financing	2,353,279	2,543,039
Suppliers	1,612,536	1,286,275
Foreign Exchange Rate Risk [member]
Assets
Cash, equivalents, short-term investments and restricted cash	491,258	1,035,802
Trade receivables	120,167	202,363
Recoverable taxes		5,312
Deposits	1,390,890	1,126,609
Derivative assets	128,809	147,469
Total assets	2,131,124	2,517,555
Liabilities
Loans and financing	(9,132,988)	(7,831,116)
Leases	(7,536,677)	(6,007,973)
Suppliers	(481,001)	(462,636)
Provisions	(1,030,915)
Derivatives liabilities	(5,297)	(20,350)
Total liabilities	(18,186,878)	(14,322,075)
Foreign currency exposure	(16,055,754)	(11,804,517)
Commitments not recorded in the statements of financial position
Future commitments resulting from operating leases
Future commitments resulting from firm aircraft orders	(23,269,198)	(29,600,647)
Total	(23,269,198)	(29,600,647)
Total foreign currency exposure - R$	R$ 39324952	R$ 35356555
Exchange rate (R$/US$)	5.1967	4.0307
Foreign Exchange Rate Risk [member] | USD
Commitments not recorded in the statements of financial position
Total foreign currency exposure - R$	R$ 7567293	R$ 8771815

33. Financial instruments an_10

33. Financial instruments and risk management (Details 7) - Foreign Currency Risk Derivatives [member] R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	5.1967
Foreign Exchange Rate Risk [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	5.1967
Effect on profit or loss	R$ 16055553
Foreign Exchange Rate Risk [member] | Dollar Depreciation (-25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	3.8975
Effect on profit or loss	R$ 4013939
Foreign Exchange Rate Risk [member] | Dollar Depreciation (-10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	4.677
Effect on profit or loss	R$ 1605575
Foreign Exchange Rate Risk [member] | Dollar Appreciation (+10%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	5.7164
Effect on profit or loss	R$ 1605575
Foreign Exchange Rate Risk [member] | Dollar Appreciation (+25%) [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	6.4959
Effect on profit or loss	R$ 4013939

33. Financial instruments an_11

33. Financial instruments and risk management (Details 8) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Loans and financing	R$ 2353279	R$ 2543039
Suppliers - Forfeiting		554,467
Liquidity Risk [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Loans and financing	9,976,966	12,247,065
leases	7,584,192	9,105,368
Suppliers	1,645,194	1,296,406
Suppliers - Forfeiting	5,297	554,467
Derivatives liabilities	618,754	20,350
Liquidity risk	19,830,403	23,223,656
Liquidity Risk [member] | Less than 6 months [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Loans and financing	2,120,462	1,112,414
leases	647,850	1,257,430
Suppliers	1,612,536	1,286,264
Suppliers - Forfeiting	5,297	554,467
Derivatives liabilities	287,275	9,080
Liquidity risk	4,673,420	4,219,655
Liquidity Risk [member] | 6 to 12 Months [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Loans and financing	232,817	1,724,940
leases	669,158	1,018,266
Suppliers
Suppliers - Forfeiting
Derivatives liabilities
Liquidity risk	901,975	2,743,206
Liquidity Risk [member] | 1 to 5 Years [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Loans and financing	6,804,167	7,519,263
leases	4,763,614	5,862,268
Suppliers	32,658	10,142
Suppliers - Forfeiting
Derivatives liabilities	331,479	11,270
Liquidity risk	11,931,918	13,402,943
Liquidity Risk [member] | 2024 Thereafter [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Loans and financing	819,520	1,890,448
leases	1,503,570	967,404
Suppliers
Suppliers - Forfeiting
Derivatives liabilities
Liquidity risk	R$ 2323090	R$ 2857852

33. Financial instruments an_12

33. Financial instruments and risk management (Details 9) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Cash and cash equivalents	R$ 662830	R$ 1645425	R$ 826187	R$ 1026862
Restricted cash	544,607	444,306
Level 1 [member] | Fair Value [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Cash and cash equivalents	59,936	5,505
Short-term investments	22,465	953,762
Level 1 [member] | Book Value [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Cash and cash equivalents	59,936	5,505
Short-term investments	22,465	953,762
Level 2 [member] | Fair Value [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Cash and cash equivalents	170,359
Short-term investments	606,870
Restricted cash	544,607	444,306
Derivative assets	128,809	147,469
Loans and financing	(346,030)	(626,557)
Derivatives liabilities	(5,297)	(20,350)
Level 2 [member] | Book Value [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Cash and cash equivalents	170,359
Short-term investments	606,870
Restricted cash	544,607	444,306
Derivative assets	128,809	147,469
Loans and financing	(346,030)	R$ 626557
Derivatives liabilities	R$ 5297

33. Financial instruments an_13

33. Financial instruments and risk management (Details 10) - Capital Management [member] - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Total loans and financing	R$ 9976966	R$ 8409841
Total leases	(7,584,192)	(6,052,780)
Cash and cash equivalents	654,444	1,645,425
Short-term investments	629,335	953,762
Restricted cash	544,607	444,306
Net indebtedness	R$ 15732772	R$ 11419128

33. Financial instruments an_14

33. Financial instruments and risk management (Details Narrative) R$ in Thousands	12 Months Ended
	Dec. 31, 2020BRL (R$)	Dec. 31, 2019BRL (R$)	Dec. 31, 2022	Dec. 31, 2021
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Gain (loss) on hedge transaction	R$ 18210	R$ 1207
Total expense recognized for capped call operations	56,306
Changes in fair value for capped call operation	74,728	R$ 23229
Changes in exchange rate for capped call operation	R$ 18422
Percentage of consumption of hedging			23.00%	65.00%
Foreign Currency Risk Derivatives [member]
Disclosure of reconciliation of liabilities arising from financing activities [line items]
Exchange rate	5.1967

34. Non-cash transactions (Deta

34. Non-cash transactions (Details) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Non-cash Transactions [abstract]
Initial adoption - IFRS 16		R$ 2436333
Share-based payment (Capital/Share-based payment)	(23,400)	(31,222)
Effects of changes in equity interest (Capital reserves / Minority interest)	(352)	(649)
Interest on shareholders' equity for distribution, net of taxes	23,139
Actuarial losses from post-employment benefits	13,921	87,541
Dividends		238,359
Leaseback (Fixed assets/Leases)	(248,729)
Leaseback (Leases)	289,102
Forfeiting (Forfeiting/Loans)	(411,457)
Acquisition of property, plant and equipment through financing (Property, plant and equipment / Loans and financing)	25,974	164,234
Guarantee deposits and Maintenance reserve (Deposits / Leases)	(77,009)	(6,974)
Capitalized deposits (Deposits / Property, plant and equipment)	(39,729)
Right of use of flight equipment (Property, plant and equipment / Leases)	165,146	957,026
Financial lease agreement renegotiation (Property, plant and equipment / Leases)	221,248
Unrealized income (expenses) of derivatives (Derivative assets/Equity valuation adjustment)		R$ 30021

35. Liabilities from Financin_3

35. Liabilities from Financing Activities (Details) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net cash flows (used in) from financing activities	R$ 1935497	R$ 892173	R$ 753189
Net cash flows from operating activities	753,936	2,461,076	2,081,869
Income for the year	92,877	296,611	305,669
Non-Cash Changers
Deposit in guarantee	(44,736)
Dividends provisioned through the subsidiary Smiles		238,359
Short And Long-Term Indebtedness [member]
Opening balance	8,409,841	7,084,467
Net cash flows (used in) from financing activities	(814,710)	1,401,125	7,105,667
Net cash flows from operating activities	(615,027)	(444,006)
Cash flow			(536,888)
Income for the year
Non-Cash Changers
Property, plant and equipment acquisition through financing	25,974	164,234	193,506
Forfaiting	411,457
Deposit in guarantee
Write-off
Disposal property, plant and equipment			(805,081)
Dividends provisioned through the subsidiary Smiles
Provision for interest on loans			565,854
Maintenance reserve
Escrow deposit
Initial adoption adjustment - IFRS 16
Gains (losses) recognized in other comprehensive income (loss)
Adjustment to profit
Exchange rate changes, net	2,207,107	313,717	1,043,117
Provision for interest and cost amortization	727,318	571,681
Contractual amendment
Unrealized income (expenses) on derivatives	(374,994)
Other results		(40,717)
Treasury shares sold
Interest payments and loan cost			(481,708)
Other
Closing balance	9,976,966	8,409,841	7,084,467
Leases [member]
Opening balance	6,052,780
Net cash flows (used in) from financing activities	(1,058,692)	(1,617,677)
Net cash flows from operating activities	(4,530)	(23,304)
Non-Cash Changers
Property, plant and equipment acquisition through financing	454,248	957,026
Forfaiting
Variation in variable and short-term liabilities	18,731
Deposit in guarantee	(47,215)
Write-off	(704,164)
Maintenance reserve		(6,498)
Escrow deposit		(476)
Initial adoption adjustment - IFRS 16		5,370,868
Gains (losses) recognized in other comprehensive income (loss)
Adjustment to profit
Exchange rate changes, net	1,833,257	241,612
Provision for interest and cost amortization	818,529	502,544
Contractual amendment	221,248	(283,460)
Unrealized income (expenses) on derivatives
Other results
Closing balance	7,584,192	6,052,780
Derivatives [member]
Opening balance	(127,119)	409,662
Net cash flows (used in) from financing activities		(407,322)
Net cash flows from operating activities		(43,008)
Non-Cash Changers
Maintenance reserve
Escrow deposit
Initial adoption adjustment - IFRS 16
Gains (losses) recognized in other comprehensive income (loss)		(94,527)
Adjustment to profit
Exchange rate changes, net		(13,946)
Provision for interest and cost amortization
Contractual amendment
Other results
Other		22,022
Closing balance		(127,119)	409,662
Non-controlling Interests from Smiles [member]
Opening balance		480,061
Net cash flows from operating activities			412,013
Cash flow			875
Income for the year			305,669
Non-Cash Changers
Property, plant and equipment acquisition through financing
Disposal property, plant and equipment
Dividends provisioned through the subsidiary Smiles			(239,877)
Provision for interest on loans
Adjustment to profit
Exchange rate changes, net
Treasury shares sold
Gains on change in investment			561
Interest payments and loan cost
Other	(1,590)		820
Closing balance	412,013		480,061
Other [member]
Opening balance		147,239
Cash flow			(219,493)
Income for the year
Non-Cash Changers
Property, plant and equipment acquisition through financing
Disposal property, plant and equipment
Dividends provisioned through the subsidiary Smiles			238,879
Provision for interest on loans
Adjustment to profit
Exchange rate changes, net
Treasury shares sold
Gains on change in investment
Interest payments and loan cost
Other			(15,620)
Closing balance			147,239
Treasury shares [member]
Opening balance		(126)
Cash flow			(15,929)
Income for the year
Non-Cash Changers
Property, plant and equipment acquisition through financing
Disposal property, plant and equipment
Dividends provisioned through the subsidiary Smiles
Provision for interest on loans
Adjustment to profit
Exchange rate changes, net
Treasury shares sold			19,971
Gains on change in investment
Interest payments and loan cost
Other
Closing balance	(4,168)		(126)
Shares To Be Issued [member]
Opening balance		2,818
Cash flow			2,818
Income for the year
Non-Cash Changers
Property, plant and equipment acquisition through financing
Disposal property, plant and equipment
Dividends provisioned through the subsidiary Smiles
Provision for interest on loans
Adjustment to profit
Exchange rate changes, net
Treasury shares sold
Gains on change in investment
Interest payments and loan cost
Other
Closing balance			2,818
Capital Stock [member]
Opening balance		R$ 2942612
Cash flow			15,428
Income for the year
Non-Cash Changers
Property, plant and equipment acquisition through financing
Disposal property, plant and equipment
Dividends provisioned through the subsidiary Smiles
Provision for interest on loans
Adjustment to profit
Exchange rate changes, net
Treasury shares sold
Gains on change in investment
Interest payments and loan cost
Other	523
Closing balance	R$ 126		R$ 2942612