Enel Chile (ENIC) 20-F 29 Apr 21 2020 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2020shares
Document and Entity Information [Abstract]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Entity Registrant Name	ENEL CHILE S.A.
Document Period End Date	Dec. 31, 2020
Entity Common Stock, Shares Outstanding	69,166,557,220
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001659939
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Voluntary Filers	No
Amendment Flag	false
ICFR Auditor Attestation Flag	true

Consolidated Statements of Fina

Consolidated Statements of Financial Position in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2017CLP ($)	Dec. 20, 2017CLP ($)
CURRENT ASSETS
Cash and cash equivalents		$ 332,036,013,000		$ 235,684,500,000
Other current financial assets		3,352,404,000		1,310,595,000
Other current non-financial assets		19,801,573,000		34,634,563,000
Trade and other receivables, current		554,886,639,000		511,455,330,000
Current accounts receivable from related parties		57,976,125,000		68,182,133,000
Inventories		23,310,029,000		39,672,250,000
Current tax assets		35,038,413,000		127,273,289,000
TOTAL CURRENT ASSETS		1,026,401,196,000		1,018,212,660,000
NON-CURRENT ASSETS
Other non-current financial assets		20,660,450,000		7,220,620,000
Other non-current non-financial assets		65,787,215,000		38,050,184,000
Trade and other non-current receivables		445,016,566,000		313,574,385,000
Non-current accounts receivable from related parties		48,358,915,000		34,407,142,000
Investments accounted for using the equity method		12,992,803,000		7,928,588,000	$ 12,873,531,000
Intangible assets other than goodwill	165,114,521	165,114,521,000	132,278,593	132,278,593,000	115,372,393,000
Goodwill		915,705,369,000		917,352,974,000	915,044,725,000
Property, plant and equipment		5,033,496,472,000		5,304,476,114,000	5,290,992,961,000
Investment property		7,421,940,000		6,795,155,000	7,557,356,000
Right-of-use assets		55,502,192,000		55,843,510,000
Deferred tax assets		108,013,945,000		21,848,239,000
TOTAL NON-CURRENT ASSETS		6,878,070,388,000		6,839,775,504,000
TOTAL ASSETS		7,904,471,584,000		7,857,988,164,000
CURRENT LIABILITIES
Other current financial liabilities		157,499,141,000		208,814,561,000
Current lease liabilities		7,007,711,000		5,842,015,000
Trade and other payables, current	627,958,022	627,958,022,000		599,263,208,000
Current accounts payable to related parties		130,053,962,000		159,809,887,000
Other current provisions		3,434,804,000		4,065,965,000
Current tax liabilities		72,359,944,000		17,995,833,000
Other current non-financial liabilities		47,166,581,000		45,508,383,000
TOTAL CURRENT LIABILITIES		1,045,480,165,000		1,041,299,852,000
NON-CURRENT LIABILITIES
Other non-current financial liabilities		1,483,589,126,000		1,692,604,245,000
Non-current lease liabilities		44,857,807,000		47,565,674,000
Trade and other payables non-current		117,210,059,000		56,250,085,000
Non-Current accounts payable to related parties		1,164,044,462,000		784,373,484,000
Other long-term provisions		210,241,671,000		171,860,282,000
Deferred tax liabilities		168,057,562,000		249,284,641,000
Non-current provisions for employee benefits		75,538,265,000		66,163,490,000
Other non-current non-financial liabilities		1,177,968,000		1,302,759,000
TOTAL NON-CURRENT LIABILITIES		3,264,716,920,000		3,069,404,660,000
TOTAL LIABILITIES		4,310,197,085,000		4,110,704,512,000
EQUITY
Share and paid-in capital		3,882,103,470,000		3,882,103,470,000			$ 1,891,727,278,668
Retained earnings		1,747,437,805,000		2,008,103,651,000
Other reserves		(2,277,625,485,000)		(2,405,509,135,000)	(2,375,672,564,000)	$ (997,330,548,000)
Equity attributable to Enel Chile		3,351,915,790,000		3,484,697,986,000
Non-controlling interests		242,358,709,000		262,585,666,000
TOTAL EQUITY		3,594,274,499,000		3,747,283,652,000	$ 3,674,163,781,000	$ 3,786,961,657,000
TOTAL LIABILITIES AND EQUITY		$ 7,904,471,584,000		$ 7,857,988,164,000

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income, by Nature - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statements of Comprehensive Income
Revenues	$ 2,548,384,317	$ 2,624,576,323	$ 2,410,360,459
Other operating income	37,017,880	146,258,037	46,800,967
Revenues and other operating income	2,585,402,197	2,770,834,360	2,457,161,426
Raw materials and consumables used	(1,374,445,639)	(1,421,205,251)	(1,292,177,116)
Contribution Margin	1,210,956,558	1,349,629,109	1,164,984,310
Other work performed by the entity and capitalized	25,539,316	17,610,861	16,710,963
Employee benefits expense	(137,226,748)	(129,604,956)	(123,130,334)
Depreciation and amortization expense	(229,957,019)	(236,627,387)	(215,187,300)
Reversal of impairment losses (impairment losses) recognized on non-financial assets	(697,806,441)	(280,762,652)	(779,825)
Profit from impairment and reversal of impairment losses (impairment losses) determined in accordance with IFRS 9	(15,167,707)	(10,047,000)	(4,783,072)
Other expenses, by nature	(190,593,334)	(184,143,140)	(167,210,021)
Operating Income	(34,255,375)	526,054,835	670,604,721
Other gains	9,488,815	1,793,201	3,410,379
Financial income	36,160,460	27,399,275	19,934,468
Financial costs	(127,408,771)	(164,897,900)	(122,184,189)
Share of profit (loss) of associates and joint ventures accounted for using the equity method	3,509,392	366,089	3,190,240
Foreign currency exchange differences	(23,272,231)	(10,412,110)	(7,807,197)
Gains or loss from indexed assets and liabilities, net (*)	2,085,768	(2,982,268)	(818,146)
(Loss) Profit before taxes	(133,691,942)	377,321,122	566,330,276
Income tax expense	81,305,107	(61,227,904)	(153,482,519)
(LOSS) PROFIT	(52,386,835)	316,093,218	412,847,757
(Loss) Profit attributable to
(Loss) Profit attributable to owners of the parent	(50,860,313)	296,153,605	361,709,937
(Loss) Profit attributable to non-controlling interests	(1,526,522)	19,939,613	51,137,820
(LOSS) PROFIT	$ (52,386,835)	$ 316,093,218	$ 412,847,757
Basic earnings per share
Basic (losses) earnings per share	$ (0.74)	$ 4.28	$ 5.66
Weighted average number of outstanding shares	69,166,557,220	69,166,557,220	63,913,359,484
Diluted earnings per share
Basic (losses) earnings per share	$ (0.74)	$ 4.28	$ 5.66
Weighted average number of outstanding shares	69,166,557,220	69,166,557,220	63,913,359,484
Gains (losses)	$ (52,386,835)	$ 316,093,218	$ 412,847,757
Components of other comprehensive income that will not be reclassified subsequently to profit or loss, before taxes
(Loss) Profit from defined benefit plans	(8,545,834)	(7,777,204)	37,881
Other comprehensive loss that will not be reclassified subsequently to profit or loss	(8,545,834)	(7,777,204)	37,881
Components of other comprehensive income that will be reclassified subsequently to profit or loss, before taxes
(Losses) Gains from foreign currency translation difference	(69,218,245)	73,114,966	107,492,316
Losses on measuring Financial Asset at Fair Value of Other Comprehensive Income	(9,125)	(3,673)	(411)
Share of other comprehensive income (loss) from associates and joint ventures accounted for using the equity method	18,982	0
Gains (losses) from cash flow hedges	208,749,917	(160,828,497)	(244,271,689)
Adjustments from reclassification of cash flow hedges, transferred to profit or loss	58,790,411	21,654,376	22,364,834
Other comprehensive income that will be reclassified subsequently to profit or loss	198,331,940	(66,062,828)	(114,414,950)
Total components of other comprehensive income (loss) before taxes	189,786,106	(73,840,032)	(114,377,069)
Income tax related to components of other comprehensive income that will not be reclassified subsequently to profit or loss
Income tax related to defined benefit plans	2,308,510	2,099,845	(10,228)
Income tax related to components of other comprehensive income that will not be reclassified subsequently to profit or loss	2,308,510	2,099,845	(10,228)
Income tax related to components of other comprehensive income that will be reclassified subsequently to profit or loss
Income tax related to cash flow hedge	(72,741,119)	36,883,401	60,650,786
Income tax related to financial assets at fair value with changes in other comprehensive income	2,464	992	111
Income tax related to components of other comprehensive income that will be reclassified subsequently to profit or loss	(72,738,655)	36,884,393	60,650,897
Total Other Comprehensive Income (Loss)	119,355,961	(34,855,794)	(53,736,400)
TOTAL COMPREHENSIVE INCOME	66,969,126	281,237,424	359,111,357
Comprehensive income (loss) attributable to:
Shareholders of Enel Chile	68,669,685	255,988,200	297,410,542
Non-controlling interests	(1,700,559)	25,249,224	61,700,815
TOTAL COMPREHENSIVE INCOME	$ 66,969,126	$ 281,237,424	$ 359,111,357

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - CLP ($) $ in Thousands	Allocated Capital [Member]	Treasury shares	Reserve for Exchange Differences in Translation [Member]	Reserve for Cash Flow Hedges [Member]	Reserve for Gains and Losses for Defined Benefit Plans [Member]	Reserve of Gains and Losses on Remeasuring Available-for-Sale Financial Assets [Member]	Other Miscellaneous Reserves [Member]	Other Reserves [Member]	Retained Earnings [Member]	Equity Attributable to Owners of Parent [Member]	Non-controlling Interests [Member]	Total
Increase (decrease) due changes in accounting policies									$ (2,702,470)	$ (2,702,470)	$ (44,691)	$ (2,747,161)
Equity at beginning of period as restated	$ 2,229,108,975		$ 6,976,383	$ (32,849,736)		$ 11,284	$ (971,468,479)	$ (997,330,548)	1,748,903,113	2,980,681,540	803,532,956	3,784,214,496
Equity beginning balance at Dec. 31, 2017	2,229,108,975		6,976,383	(32,849,736)		11,284	(971,468,479)	(997,330,548)	1,751,605,583	2,983,384,010	803,577,647	3,786,961,657
Comprehensive income
Profit (loss)									361,709,937	361,709,937	51,137,820	412,847,757
Other comprehensive income (loss)			94,678,453	(159,020,809)	$ 43,204	(243)		(64,299,395)		(64,299,395)	10,562,995	(53,736,400)
TOTAL COMPREHENSIVE INCOME										297,410,542	61,700,815	359,111,357
Share issuance	1,725,382,504									1,725,382,504		1,725,382,504
Dividends									(195,858,641)	(195,858,641)	(19,603,211)	(215,461,852)
Increase (decrease) from other changes					(43,204)		(403,562,193)	(403,605,397)	43,204	(403,562,193)	92,644,186	(310,918,007)
Increase (decrease) due to portfolio transactions		$ (72,388,009)								(72,388,009)		(72,388,009)
Increase (decrease) due to changes in subsidiary interests that do not lead to loss of control							(910,437,224)	(910,437,224)		(910,437,224)	(685,339,484)	(1,595,776,708)
Total changes in equity	1,725,382,504	(72,388,009)	94,678,453	(159,020,809)		(243)	(1,313,999,417)	(1,378,342,016)	165,894,500	440,546,979	(550,597,694)	(110,050,715)
Equity ending balance at Dec. 31, 2018	3,954,491,479	(72,388,009)	101,654,836	(191,870,545)		11,041	(2,285,467,896)	(2,375,672,564)	1,914,797,613	3,421,228,519	252,935,262	3,674,163,781
Comprehensive income
Profit (loss)									296,153,605	296,153,605	19,939,613	316,093,218
Other comprehensive income (loss)			64,461,733	(99,135,975)	(5,488,506)	(2,657)		(40,165,405)		(40,165,405)	5,309,611	(34,855,794)
TOTAL COMPREHENSIVE INCOME										255,988,200	25,249,224	281,237,424
Dividends									(197,359,062)	(197,359,062)	(16,578,349)	(213,937,411)
Increase (decrease) from other changes	(72,388,009)	72,388,009			5,488,506		4,840,328	10,328,834	(5,488,505)	4,840,329	979,529	5,819,858
Total changes in equity	(72,388,009)	$ 72,388,009	64,461,733	(99,135,975)		(2,657)	4,840,328	(29,836,571)	93,306,038	63,469,467	9,650,404	73,119,871
Equity ending balance at Dec. 31, 2019	3,882,103,470		166,116,569	(291,006,520)		8,384	(2,280,627,568)	(2,405,509,135)	2,008,103,651	3,484,697,986	262,585,666	3,747,283,652
Comprehensive income
Profit (loss)									(50,860,313)	(50,860,313)	(1,526,522)	(52,386,835)
Other comprehensive income (loss)			(62,466,476)	188,060,425	(6,076,332)	(6,601)	18,982	119,529,998		119,529,998	(174,037)	119,355,961
TOTAL COMPREHENSIVE INCOME										68,669,685	(1,700,559)	66,969,126
Dividends									(203,729,201)	(203,729,201)	(18,163,142)	(221,892,343)
Increase (decrease) from other changes					$ 6,076,332		2,277,320	8,353,652	(6,076,332)	2,277,320	(363,256)	1,914,064
Total changes in equity			(62,466,476)	188,060,425		(6,601)	2,296,302	127,883,650	(260,665,846)	(132,782,196)	(20,226,957)	(153,009,153)
Equity ending balance at Dec. 31, 2020	$ 3,882,103,470		$ 103,650,093	$ (102,946,095)		$ 1,783	$ (2,278,331,266)	$ (2,277,625,485)	$ 1,747,437,805	$ 3,351,915,790	$ 242,358,709	$ 3,594,274,499

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) $ in Thousands	Jan. 01, 2018CLP ($)
Initial balance adjustment for IFRS 9
Retained earnings	$ 3,411,631
Increase (decrease) due to application of IAS 29
Retained earnings	$ 664,470

Consolidated Statements of Cash

Consolidated Statements of Cash Flows, Direct - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Types of collection from operating activities
Collections from the sale of goods and services	$ 2,961,814,449	$ 3,053,366,631	$ 3,037,830,501
Collections from premiums and services, annual payments, and other obligations from policies held	6,846,414	30,131,403	9,201,388
Receipts from rents and subsequent sales of such assets	102,436,230	7,938,954
Other collections from operating activities	16,403,356	929,839	23,353,592
Types of payment in cash from operating activities
Payments to suppliers for goods and services	(1,935,080,572)	(1,923,705,670)	(1,921,809,622)
Payments to and on behalf of employees	(140,378,194)	(130,102,939)	(119,944,410)
Payments of premiums and services, annual payments, and other obligations from policies held	(25,114,326)	(16,828,690)	(15,704,586)
Payments to manufacture or acquire assets held for rental to others and subsequently held for sale	(56,489,776)	(39,625,028)
Other payments for operating activities	(170,290,593)	(154,500,049)	(137,352,099)
Income taxes paid	(1,342,494)	(82,778,533)	(134,512,945)
Other cash outflows, net	(2,938,296)	(1,114,199)	(5,536,297)
Net cash flows from operating activities	755,866,198	743,711,719	735,525,522
Cash flows from (used in) investing activities
Cash flows from the loss or gains of control of subsidiaries or other businesses, net			(1,624,326,739)
Other payments to acquire equity or debt instruments of other entities	(2,769,624)	(130,639)
Loans to related companies			(37,940,159)
Proceeds from the sale of property, plant and equipment		872,988	4,640,835
Purchases of property, plant and equipment	(514,807,265)	(300,346,362)	(300,538,836)
Purchases of intangible assets	(39,506,950)	(20,732,156)
Payments for future, forward, option and swap contracts	(3,260,921)	(7,551,080)	(1,475,713)
Collections from future, forward, option and swap contracts	22,229	2,737,887	352,734
Collections from related companies			76,307,192
Dividends received		6,455,840	1,520,979
Interest received	5,671,141	6,034,028	6,653,972
Other inflows (outflows) of cash		1,127,683	(6,753,959)
Net cash flows used in investing activities	(554,651,390)	(311,531,811)	(1,881,559,694)
Cash flows from (used in) financing activities
Payments proceeds from share Issuance			665,829,207
Payments for acquiring treasury shares			(72,388,009)
Payments for other equity interests	(519,943)
Total proceeds from loans			1,565,782,604
Loans from related companies	484,520,001	283,831,505
Payments of loans	(150,878,247)	(315,323,464)	(819,525,929)
Payments of borrowings and lease liabilities	(4,940,582)	(4,498,202)	(1,889,685)
Dividends paid	(312,714,789)	(236,478,649)	(231,392,743)
Interest paid	(139,251,404)	(134,429,754)	(116,540,891)
Other outflows of cash, net	(3,884,370)	(33,537,124)	(23,297,678)
Net cash flows from (used in) financing activities	(127,669,334)	(440,435,688)	966,576,876
Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes	73,545,474	(8,255,780)	(179,457,296)
Effect of exchange rate changes on cash and cash equivalents
Effect of exchange rate changes on cash and cash equivalents	22,806,039	(1,231,644)	5,173,194
Net increase (decrease) in cash and cash equivalents	96,351,513	(9,487,424)	(174,284,102)
Cash and cash equivalents at beginning of year	235,684,500	245,171,924	419,456,026
Cash and cash equivalents at end of year	$ 332,036,013	$ 235,684,500	$ 245,171,924

General Information

General Information	12 Months Ended
	Dec. 31, 2020
GENERAL INFORMATION
General Information	1. Enel Chile S.A. (hereinafter the “Parent Company” or the “Company”) and its subsidiaries comprise the Enel Chile Group (hereinafter the “Group”). The Company is a publicly traded corporation with registered address and head office located at Avenida Santa Rosa, No. 76, in Santiago, Chile. Since April 13, 2016, the Company is registered with the securities register of the Financial Market Commission of Chile (“Comisión para el Mercado Financiero” or “CMF”) and since March 31, 2016 is registered with the Securities and Exchange Commission of the United States of America (hereinafter the “U.S. SEC”). On April 21, 2016, the Company’s shares began trading on the Santiago Stock Exchange and the Electronic Stock Exchange. In addition, the Company’s common stock began trading in the United States in the form of American Depositary Shares on the New York Stock Exchange on a “when-issued” basis from April 21, 2016 to April 26, 2017 and on a“regular-way” basis since April 27, 2016. Enel Chile is a subsidiary of Enel S.p.A. (hereinafter “Enel”), an entity that has direct and indirect ownership interests of 64.93%. The Company was initially incorporated by public deed dated January 22, 2016 and came into legal existence on March 1, 2016 under the name of Enersis Chile S.A. The Company changed its name to Enel Chile S.A. effective October 4, 2016, when the Company’s name was changed by means of an amendment of the by-laws. For tax purposes, the Company operates under Chilean Tax identification number 76.536.353 5. As of December 31, 2020, the Group had 2,219 employees. During the fiscal year ended December 31, 2020, the Group averaged a total of 2,202 employees (see Note 37). The Company’s corporate purpose consists of exploring for, developing, operating, generating, distributing, transmitting, transforming, and/or selling energy of any kind or form, whether in Chile or abroad, either directly or through other companies. It is also engaged in telecommunications activities, and it provides engineering consulting services in Chile and abroad. The Company’s corporate purpose also includes investing in, and managing, its investments in subsidiaries and associates which generate, transmit, distribute, or sell electricity, or whose corporate purpose includes any of the following: i) Energy of any kind or form, ii) Supplying public services, or services whose main component is energy, iii) Telecommunications and information technology services, and iv) Internet-based intermediation business.

Basis of Presentation of the Co

Basis of Presentation of the Consolidated Financial Statements	12 Months Ended
	Dec. 31, 2020
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Basis of Presentation of the Consolidated Financial Statements	2. BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS 2.1. The consolidated financial statements of Enel Chile as of December 31, 2020, approved by its Board of Directors at the meeting held on April 28, 2021, have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board (IASB). These consolidated financial statements reflect faithfully the financial position of Enel Chile and its subsidiaries at December 31, 2020 and 2019, and the results of their operations, respectively and the changes in their equity and their cash flows for the year ended December 31, 2020, 2019 and 2018 and their related notes. These consolidated financial statements have been prepared under going concern assumptions on a historical cost basis except when, in accordance with IFRS, those assets and liabilities that are measured at a fair value. Appendix 1 – Detail of Assets and Liabilities in Foreign Currency; Appendix 2 – Additional Information Circular No. 715 of February 2, 2012; Appendix 2.1 – Supplementary Information on Trade Receivables; Appendix 2.2 – Estimates of Sales and Purchases of Energy, Power and Toll and Appendix 3 – Detail of Due Dates of Payments to Suppliers, form an integral part of these consolidated financial statements. 2.2. New accounting pronouncements a) The following accounting pronouncements have been adopted by the Group effective as of January 1, 2020: Amendments and Improvements Mandatory Conceptual Framework (Revised) Annual periods beginning on or after January 1, 2020 Amendment to IFRS 3: Definition of a Business Annual periods beginning on or after January 1, 2020 Amendments to IAS 1 and IAS 8: Definition of Material Annual periods beginning on or after January 1, 2020 Amendments to IFRS 9, IAS 39 and IFRS 7: Interest Rate Benchmark Reform (Phase 1) Annual periods beginning on or after January 1, 2020 Conceptual Framework (Revised) The IASB issued the Conceptual Framework (Revised) in March 2018. It incorporates some new concepts, provides updated definitions and recognition criteria for assets and liabilities and clarifies certain important matters. Revisions to the Conceptual Framework may affect the application of IFRS when no standard applies to a particular transaction or event. The IASB has also issued a separate accompanying document, "Amendments to References to the Conceptual Framework in IFRS Standards," which establishes amendments to IFRSs in order to update references to the new Conceptual Framework. The Conceptual Framework (Revised), as well as the Amendments to the References to the Conceptual Framework in IFRS, became effective beginning on January 1, 2020, with prospective application, with no impact generated in the Group’s consolidated financial statements. Amendments to IFRS 3 Definition of a Business IFRS 3 Business Combinations was amended by the IASB in October 2018, to clarify the definition of a business, in order to help entities, determine whether a transaction should be accounted for as a business combination or as the acquisition of an asset. To be considered as a business, an acquired integrated set of activities and assets must include, at least, an input and a substantive process that together contribute significantly to the ability to create output. The amendment also adds guidance and illustrative examples to assess whether a substantial process has been acquired and introduces an optional fair value concentration test. The amendment became effective beginning on January 1, 2020, with prospective application for business combinations and asset acquisitions carried out beginning on such date, with no impact generated in the consolidated financial statements of the Group. Amendments to IAS 1 and IAS 8 Definition of Material In October 2018, the IASB amended IAS 1 Presentation of Financial Statements and IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors, to improve the definition of “material” and the explanations accompanying the definition. The amendments ensure that the definition of material is consistent in all IFRSs. Information is material if omitting, misstating or obscuring it could reasonably be expected to influence the decisions that the primary users of general purpose financial statements make on the basis of those financial statements, which provide financial information about a specific reporting entity. The amendments became effective beginning on January 1, 2020, with prospective application, with no impact generated in the Group’s consolidated financial statements. Amendments to IFRS 9, IAS 39 and IFRS 7 – Interest rate benchmark reform (Phase 1) On September 26, 2019, the IASB issued amendments to IFRS 9 Financial Instruments, and IAS 39 Financial Instruments: Recognition and Measurement, and IFRS 7 Financial Instruments: Disclosures, in response to the reform that gradually eliminates benchmark interest rates, such as interbank offered rates (IBORs). The amendments provide temporary reliefs which enable hedge accounting to continue during the period of uncertainty before the replacement of an existing interest rate benchmark with an alternative nearly risk-free interest rate (an RFR). These amendments became effective beginning on January 1, 2020. The amendments to IFRS 9 include a number of reliefs, which apply to all hedging relationships that are directly affected by the interest rate benchmark reform. A hedging relationship is affected if the reform gives rise to uncertainties about the timing and/or amount of benchmark-based cash flows of the hedged item or the hedging instrument. The first three reliefs provide for: - The assessment of whether a forecast transaction (or component thereof) is highly probable. - Assessing when to reclassify the amount in the cash flow hedge reserve to profit and loss. - The assessment of the economic relationship between the hedged item and the hedging instrument. For each of these reliefs, it is assumed that the benchmark on which the hedged cash flows are based (whether or not contractually specified) and/or, for relief three, the benchmark on which the cash flows of the hedging instrument are based, are not altered as a result of the reform. A fourth relief provides that, for a benchmark component of interest rate risk that is affected by the reform, the requirement that the risk component is separately identifiable needs be met only at the inception of the hedging relationship. The exceptions will continue to be applied indefinitely in the absence of any of the events described in the amendments. Upon the designation of a group of items as a hedged item or a combination of financial instruments, as a hedging instrument, the exceptions will cease being applied separately to each individual item or financial instrument, when there is no longer uncertainty arising from the interest rate benchmark reform. At the end of 2020, the Group has hedging relationships in force in which the interest rate has been designated as the hedged risk, specifically the London Interbank Offered Rate (LIBOR). These hedging relationships, classified as cash flow hedges, have been directly affected by the uncertainty arising from the interest rate benchmark reform. In order to evaluate the economic relationship between the hedged items and the hedging instruments, in accordance with the exceptions established by the standard, the Group has assumed that LIBOR, the benchmark interest rate on which the hedged risks are based, has not been altered as a result of the reform. The Group has contacted financial institutions in the domestic and international market, as well as with the counterparties of the current operations, in order to evaluate the best alternatives for the continuity of the contracts and their hedging relationship. As of December 31, 2020, the nominal amount of hedging instruments, for hedging relationships to which the exceptions established in IFRS 9 have been applied, is US$400 million (ThCh$284,380,000). b) Accounting pronouncements applicable beginning on January 1, 2021 and thereafter: As of the date of issuance of these consolidated financial statements, the following accounting pronouncements had been issued by the IASB, but their application was not mandatory: Amendments and Improvements Mandatory application for annual periods beginning on: Amendments to IFRS 16: COVID-19-Related Rent Concessions June 1, 2020 Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16: Interest Rate Benchmark Reform – Phase 2 Annual periods beginning on or after January 1, 2021 Amendments to IFRS 3: References to the Conceptual Framework Annual periods beginning on or after January 1, 2022 Amendments to IAS 16: Proceeds before Intended Use Annual periods beginning on or after January 1, 2022 Amendments to IAS 37: Onerous Contracts – Cost of Fulfilling a Contract Annual periods beginning on or after January 1, 2022 Annual improvements to IFRS: 2018-2020 Cycle Annual periods beginning on or after January 1, 2022 Amendments to IAS 1: Classification of Liabilities as Current or Non-current Annual periods beginning on or after January 1, 2023 Amendments to IFRS 16 “COVID-19-Related Rent Concessions” As a result of the COVID-19 pandemic, lessees in many countries have been granted rent payment concessions, such as grace periods and delaying of lease payments for a period of time, sometimes followed by an increase in the payment in future periods. Within this context, on May 28, 2020, the IASB issued amendments to IFRS 16 Leases, in order to provide a practical expedient for lessees, through which they can opt for not evaluating whether the rent concession is a modification of the lease. Lessees that elect this option, will account for such rent concessions as a variable payment. The practical expedient is only applicable to rent concessions that occur as a direct consequence of the COVID-19 pandemic and only if they comply with all the following conditions: i) the change in lease payments is the product of a revised lease payment that is substantially the same, or less than the lease payment immediately before the change; ii) any reduction in lease payments affects only the payments originally due up to June 30, 2021; and iii) there is no substantial change in the other terms and conditions of the lease. The amendments are applicable to annual periods beginning on June 1, 2020. Early application is permitted. These amendments must be applied retroactively, recognizing the accumulated effect from initial application as an adjustment in the beginning balance of retained earnings (or other equity component, as applicable) at the beginning of the annual period in which the amendment is applied for the first time. Management estimates that the application of these amendments will not have an impact on the Group's consolidated financial statements. Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16: Interest Rate Benchmark Reform (Phase 2) On August 27, 2020, the IASB issued the Interest Rate Benchmark Reform (Phase 2) which supplements the amendments to IFRS 9, IAS 39 and IFRS 7 issued in 2019, and additionally incorporates amendments to IFRS 4 and IFRS 16. This final phase of the project focuses on the effects on the financial statements when a company replaces the previous interest rate benchmark with an alternative interest rate benchmark as a result of the reform. The amendments refer to: - Changes in contractual cash flows: a company will not have to derecognize accounts or adjust the carrying amounts of financial instruments due to changes required by the reform, but rather will update the effective interest rate to reflect the change in the alternative interest rate benchmark; - Hedge accounting: a company will not have to discontinue its hedge accounting solely because it makes the changes required by the reform, if the hedge complies with other hedge accounting criteria; and - Disclosures: a company will be required to disclose information about new risks that arise from the reform and how it manages the transition to alternative interest rate benchmarks. These amendments are effective for annual periods beginning on January 1, 2021, and early adoption is permitted. The amendments are applicable retroactively, with certain exceptions. Management is evaluating the potential impact of the application of these amendments on the Group’s consolidated financial statements. Amendments to IFRS 3 “References to the Conceptual Framework” On May 14, 2020, the IASB issued a package of limited-scope amendments, including amendments to IFRS 3 Business Combinations. The amendments update references to the Conceptual Framework issued in 2018, in order to determine an asset or a liability in a business combination. In addition, the IASB added a new exception to IFRS 3 for liabilities and contingent liabilities, which specifies that, for certain types of liabilities and contingent liabilities, an entity that applies IFRS 3 must refer to IAS 37 “Provisions, Contingent Liabilities and Contingent Assets”, or IFRIC 21 “Levies”, instead of the 2018 Conceptual Framework. Without this exception, an entity would have recognized certain liabilities in a business combination that would not be recognized in accordance with IAS 37. The amendments are applicable prospectively to business combinations with acquisition dates beginning on the first annual period beginning on January 1, 2022. Early application is permitted. Management is evaluating the potential impact of the application of these amendments on the Group’s consolidated financial statements. Amendments to IAS 16 “Proceeds before Intended Use” As part of the package of limited-scope amendments issued in May 2020, the IASB issued amendments to IAS 16 Property, Plant and Equipment, which prohibit a company from deducting from the cost of property, plant and equipment amounts received from selling items produced while the company is preparing the asset for its intended use. Instead, the company will recognize such sales proceeds and related costs in profit or loss for the period. The amendments also clarify that an entity is “testing whether an asset operates correctly” when it evaluates the technical and physical performance of the asset. These amendments are applicable to annual reporting periods beginning on January 1, 2022. Early application is permitted. The amendments will be applied retroactively, but only from the beginning of the first period presented in the financial statements in which the entity applies the amendments for the first time. The accumulated effect of initial application of the amendments will be recognized as an adjustment to the opening balance of retained earnings (or other equity components as applicable) at the beginning of the first reported period. Management is evaluating the potential impact of the application of these amendments on the Group’s consolidated financial statements. Amendments to IAS 37 “Onerous Contracts: Cost of Fulfilling a Contract” The third standard amended by the IASB in the package of limited-scope amendments issued in May 2020 was IAS 37 Provisions, Contingent Liabilities and Contingent Assets. The amendments specify which costs a company should include when evaluating whether a contract is onerous. In this sense, the amendments clarify that the direct cost of fulfilling a contract comprises both the incremental costs of fulfilling this contract (for example, direct labor and materials), as well as the allocation of other costs that are directly related to compliance with the contracts (for example, an allocation of the depreciation charge for an item of property, plant and equipment used to fulfill the contract). These amendments are applicable for reported annual periods beginning on January 1, 2022. Early application is allowed. Companies must apply these amendments to contracts for which all obligations have still not been fulfilled at the beginning of the reported annual period in which the amendments are applied for the first time. They do not require restatement of comparative information. The accumulated effect of initially applying the amendments will be recognized as an adjustment to the opening balance of retained earnings (or another equity component as applicable) on the date of initial application. Management is evaluating the potential impact of the application of these amendments on the Group’s consolidated financial statements. Annual Improvements to IFRS: 2018-2020 Cycle On May 14, 2020, the IASB issued a number of minor amendments to IFRSs, in order to clarify or correct minor issues or overcome possible inconsistencies in the requirements of certain standards. The amendments with potential impact on the Group are the following: · IFRS 9 Financial Instruments : clarifies that for the purpose of the 10% test for derecognition of financial liabilities, when determining commissions paid net of commissions received, the borrower must only consider the commissions paid or received between the borrower and the lender. These improvements are applicable to reported annual periods beginning on January 1, 2022. Early application is allowed. Entities must apply these amendments to financial liabilities that are modified or exchanged at the beginning of the reported annual period, in which the amendments are applied for the first time. · Examples that accompany IFRS 16 Leases: amendment of illustrative example 13, in order to eliminate a possible confusion regarding the treatment of lease incentives. The example included as part of its background information, a reimbursement from the lessor to the lessee, related to leasehold improvements. Since the example was not sufficiently clear as to whether the reimbursement complied with the definition of a lease incentive, the IASB decided to eliminate from the illustrative example any reference to this reimbursement, thus avoiding any possibility of confusion. Management believes that the application of these improvements will not generate an impact on the consolidated financial statements of the Group. Amendments to IAS 1 “Classification of Liabilities as Current and Non-Current” On January 23, 2020, the IASB issued limited-scope amendments to IAS 1 Presentation of Financial Statements, in order to clarify how to classify debt and other liabilities as current or non-current. The amendments clarify that a liability is classified as non-current if the entity has, at the end of the reporting period, the substantial right to defer settlement of the liability during at least 12 months. The classification is not affected by the expectations of the entity or by events after the reporting date. The amendments include clarification of the classification requirements for debt that a company could settle converting it to equity. The amendments only affect the presentation of liabilities as current and non-current in the statement of financial position, not the amount and timing of their recognition, or the related disclosures. However, they could lead to companies reclassifying certain current liabilities to non-current and vice versa. This could affect compliance with covenants in the debt agreements of companies. These amendments are applicable retroactively beginning on January 1, 2023. In response to the Covid-19 pandemic, in July 2020 the IASB extended its mandatory effective date established initially for January 1, 2022, by a year in order to provide companies more time to implement any change in classification resulting from these amendments. Early application is permitted. Management is evaluating the potential impact of the application of these amendments on the Group’s consolidated financial statements. 2.3. The Company’s Board of Directors is responsible for the information contained in these consolidated financial statements and expressly states that all IFRS principles and standards, have been fully implemented. In preparing the consolidated financial statements, certain judgments and estimates made by the Group’s Management have been used to quantify some of the assets, liabilities, revenue, expenses and commitments recognized. The most significant areas where critical judgment was required are: - The identification of Cash Generating Units (CGU) for impairment testing (see Note 3.e). - The hierarchy of information used to measure assets and liabilities at fair value (see Note 3.h). - Application of the revenue recognition model in accordance with IFRS 15 (see Note 3.q). The estimates refer basically to: - The valuations performed to determine the existence of impairment losses in non-financial assets and goodwill (see Note 3.e). - The assumptions used to calculate the actuarial liabilities and obligations with employees, such as discount rates, mortality tables, salary increases, etc. (see Notes 3.m.1 and 26). - The useful lives of property, plant and equipment, and intangible assets (see Notes 3.a and 3.d). - The assumptions used to calculate the fair value of financial instruments (see Notes 3.h and 23). - The energy supplied to customer whose meters have not yet been read. - Certain assumptions inherent in the electricity system affecting transactions with other companies, such as production, customer billings, energy consumption, that allow for estimation of electricity system settlements that occur on the corresponding final settlement dates, but that are pending as of the date of issuance of the consolidated financial statements and could affect the balances of assets, liabilities, income and expenses recognized in the financial statements (see Appendix 2.2). - The interpretation of new normative related to the regulation of the Electric Sector, whose final economic effects will be determined by the resolutions of the relevant agencies (see Note 4 and 9). - The probability that uncertain or contingent liabilities will be incurred and their related amounts (see Note 3.m). - Future disbursements for closure of facilities and restoration of land, as well as associated discount rates to be used (see Note 3.a). - The tax results of the different Group subsidiaries that will be reported to the respective tax authorities in the future, and other estimates have been used as a basis for recording the different income tax related balances in these consolidated financial statements (see Note 3.p). - The fair value of assets acquired and liabilities assumed, and any pre-existing interest in an entity acquired in a business combination. - Determination of expected credit losses on financial assets (see Note 3.g.3). - In the measurement of lease liabilities, determination of the lease term of contracts with renewal options, as well as the rates to be used to discount lease payments (see Note 3.f). In relation to the COVID-19 pandemic, the degree of uncertainty generated in the macroeconomic and financial environment in which the Group operates, could affect the valuations and estimates made by Management to determine the carrying amounts of the more volatile assets and liabilities. As of December 31, 2020, according to the information available and considering a scenario in constant evolution, the main areas that required Management to use their judgment and make estimates were the following: i) measurement of expected credit losses financial assets; ii) determination of impairment losses on non-financial assets; and iii) measurement of employee benefits, including actuarial assumptions. Although these judgments and estimates have been based on the best information available as of the date of issuance of these consolidated financial statements, future events may occur that would require a change (increase or decrease) to these judgments and estimates in subsequent periods. This change would be made prospectively, recognizing the effects of this change in judgment or estimation in the related future consolidated financial statements. 2.4. Subsidiaries Subsidiaries are defined as those entities controlled either, directly or indirectly by Enel Chile. Control is exercised if, and only if, the following conditions are met: the Company has i) power over the subsidiary; ii) exposure or rights to variable returns from these entities; and iii) the ability to use its power to influence the amount of these returns. Subsidiaries are defined as those entities controlled either, directly or indirectly by Enel Chile. Control is exercised if and only if the following conditions are met: the Company has i) power over the subsidiary; ii) exposure, or rights to variable returns from these entities; and iii) the ability to use its power to influence the amount of these returns. The Group will reassess whether or not it controls a subsidiary if facts and circumstances indicate that there are changes to one or more of the control elements listed above. Subsidiaries are consolidated as described in Note 2.7. The entities in which the Group has the ability to exercise control and consequently are included in consolidation in these consolidated financial statements are detailed below: Ownership % at Percentage at Taxpayer ID Company Country Currency Direct Indirect Total Direct Indirect Total 76.722.488-5 Empresa de Transmisión Chena S.A. Chile Chilean peso — — 96.783.910-8 Enel Colina S.A.(i) Chile Chilean peso — — 96.504.980-0 Empresa Eléctrica Pehuenche S.A. Chile Chilean peso — — 96.800.460-3 Luz Andes Ltda. (ii) Chile Chilean peso — — — — 96.800.570-7 Enel Distribución Chile S.A. (**) Chile Chilean peso — 91.081.000-6 Enel Generación Chile S.A. Chile Chilean peso — 78.932.860-9 GasAtacama Chile S.A. (v) Chile Chilean peso — — — — — 78.952.420-3 Gasoducto Atacama Argentina S.A.(v) Chile Chilean peso — — — — — 77.047.280-6 Sociedad Agrícola de Cameros Ltda. Chile Chilean peso — 96.920.110-0 Enel Green Power Chile Ltda. (iii) Chile U.S. dollar — — — 76.412.562-2 Enel Green Power Chile S.A. (iii) (*) Chile U.S. dollar — — 76.052.206-6 Parque Eólico Valle de los Vientos SpA (iii) Chile U.S. dollar — — — 76.306.985-0 Diego de Almagro Matriz SpA (iii) Chile U.S. dollar — — — — 96.524.140-K Empresa Eléctrica Panguipulli S.A. (iv) Chile U.S. dollar — — — 76.321.458-3 Almeyda Solar SpA (*) Chile U.S. dollar — — 76.179.024-2 Parque Eólico Tal Tal SpA (iv) Chile U.S. dollar — — — 96.971.330-6 Geotérmica del Norte S.A. Chile U.S. dollar — — 99.577.350-3 Empresa Nacional de Geotermia S.A. (***) Chile U.S. dollar — — 76.126.507-5 Parque Talinay Oriente S.A. Chile U.S. dollar — — 76.924.079-9 Enel X Chile Spa Chile Chilean peso — (*) On January 1, 2021, the merger by incorporation of Almeyda Solar SpA into Enel Green Power Chile S.A. took place, where the latter company became the legal successor company. (**) On January 1, 2021, the spin-off by Enel Distribución Chile S.A was formalized which resulted in the incorporation of a new company, Enel Transmisión Chile S.A., to which the assets and liabilities associated with the electric power transmission segment were assigned and also distributing to all the shareholders of Enel Distribución Chile S.A., a number of Enel Transmisión Chile S.A. shares equal to the their interest in the spin-off company. This process was performed to comply with the requirements related to the exclusive turn of distribution, according to the latest modifications to Decree with Force of Law No. 4/2016 issued by the Ministry of Economy, Development and Reconstruction, which established the consolidated, coordinated and systematized text of Decree with Force of Law No. 1-1982 issued by the Ministry of Mining, General Law of Electric Services. (***) Empresa Nacional de Geotermia S.A. is in liquidation process as of December 31, 2020. 2.4.1 i. On April 14, 2020, Empresa Eléctrica de Colina Ltda. changed its name to Enel Colina S.A. ii. On January 1, 2020, Luz Andes Ltda. merged into Enel Distribución Chile S.A. where the latter company became the legal successor company. iii. On March 1, 2020, Enel Green Power Chile Ltda. merged into Enel Green Power del Sur SpA, where the latter company became the legal successor company. This transaction was approved by the Extraordinary Shareholders' Meeting of Enel Green Power del Sur SpA, held on February 27, 2020. Subsequently, on April 14, 2020, Enel Green Power del Sur SpA changed its name to Enel Green Power Chile S.A. On the same date, the merger by incorporation of Parque Eólico Valle de los Vientos SpA and Diego de Almagro Matriz SpA into Empresa Eléctrica Panguipulli S.A. was completed, where the latter company became the legal successor company. This transaction was approved by the Extraordinary Shareholders' Meetings of Empresa Eléctrica Panguipulli S.A. and Parque Eólico Valle de los Vientos SpA, both held on February 27, 2020. iv. On July 1, 2020, the merger by incorporation of Empresa Eléctrica Panguipulli S.A. into Parque Eólico Taltal SpA was completed, where the latter company became the legal successor company. Subsequently, on August 1, 2020, the merger by incorporation of Parque Eólico Taltal SpA into Almeyda Solar SpA was completed, where the latter company became the legal successor company. v. Gasoducto GasAtacama Argentina S.A. was merged into GasAtacama Chile S.A. on September 1, 2019, where the latter company became the legal successor company. Subsequently, on October 1, 2019, GasAtacama Chile S.A. was completely acquired by Enel Generación Chile S.A. as a result of a transaction approved by the Board of Directors of Enel Generación Chile S.A. on August 29, 2019. The transaction consisted of Enel Generación Chile S.A.’s acquisition of 2.63% of the shares of GasAtacama Chile S.A. held by Enel Chile. As a result, Enel Generación Chile S.A. became the owner of 100% of the shares in GasAtacama Chile S.A., which was absorbed through a merger, with Enel Generación Chile S.A. where the latter company became the legal successor company. 2.5. Investments in associates Associates are those entities over which Enel Chile, either directly or indirectly, exercises significant influence. Significant influence is the power to participate in the decisions related to the financial and operating policy of the associate but without having control or joint control over those policies. In assessing significant influence, the Group takes into account the existence and effect of currently exercisable voting rights or convertible rights at the end of each reporting period, including currently exercisable voting rights held by the Company or other entities. In general, significant influence is presumed to be present in those cases in which the Group has more than 20% of the voting power of the investee Associates are accounted for in the consolidated financial statements using the equity method of accounting, as described in Note 3.i. The detail of the companies that qualify as associates is the following: Ownership % at Percentage at Taxpayer ID No. Company Country Currency Direct Indirect Total Direct Indirect Total 76.418.940-K GNL Chile S.A. Chile U.S. dollar — 33.33% 33.33% — 33.33% 33.33% 76.364.085-K Energía Marina SpA Chile Chilean peso — 25.00% 25.00% — 25.00% 25.00% 77.157.779-2 Enel AMPCI Ebus Chile SpA (*) Chile U.S. dollar — 20.00% 20.00% — — — (*) On June 11, 2020, the Company’s subsidiary Enel X Chile SpA acquired 20% of the holding company Enel AMPCI Ebus Chile SpA from the AMP Capital Group. 2.6. Joint arrangements Joint arrangements are defined as those entities in which the Group exercises control under an agreement with other shareholders and jointly with them, i.e., when decisions on the entities’ relevant activities require the unanimous consent of the parties sharing control. Depending on the rights and obligations of the participants, joint agreements are classified as: - Joint venture: an agreement whereby the parties exercising joint control have rights to the entity’s net assets. Joint ventures are included in the consolidated financial statements using the equity method of accounting, as described in Note 3.i. - Joint operation: an agreement whereby the parties exercising joint control have rights to the assets and obligations with respect to the liabilities relating to the arrangement. Joint operations are included in the consolidated financial statements recognizing the proportional interest in the assets and liabilities impacted by such operation. In determining the type of joint arrangement in which it is involved, the Group’s Management assesses its rights and obligations arising from the arrangement by considering the structure and legal form of the arrangement, the terms agreed by the parties in the contractual arrangement and, when relevant,

Accounting Policies

Accounting Policies	12 Months Ended
	Dec. 31, 2020
ACCOUNTING POLICIES
Accounting Policies	3. ACCOUNTING POLICIES The main accounting policies used in preparing the accompanying consolidated financial statements are the following: a) Property, plant and equipment Property, plant and equipment are generally measured with at acquisition cost, net of accumulated depreciation and any impairment losses experienced. In addition to the price paid to acquire each item, the cost also includes, the following concepts, where applicable: - Finance costs accrued during the construction period that are directly attributable to the acquisition, construction, or production of qualifying assets, which require a substantial period of time before being ready for use such as; for example., electricity generation or distribution facilities. The Group defines “substantial period” as a period exceeding twelve months. On the other hand, the capitalization of interest is suspended for periods in which the development of activities for a qualifying asset has been interrupted, if these periods are extended over time. The interest rate used is that corresponding to the specific financing or, if it does not exist, the average financing rate of the company making the investment (See Note 16 b.1). - Employee expenses directly related to construction in progress (see Note 16.b.2). - Future disbursements that the Group will have to make to close its facilities are added to the value of the asset at fair value, recognizing the related provision for dismantling or restoration. Changes in the measurement of the provision resulting from changes in the estimated amount or timing of future expenditures required to settle the obligation, or changes in the discount rate, are added to or deducted from the cost of the asset, as appropriate ( See Note 25). Assets under for construction are transferred to operating assets once the testing period has been completed and they are available for use, at which time depreciation begins. Expansion, modernization or improvement costs that represent an increase in productivity, capacity or efficiency or a lengthening of the useful lives of the assets are capitalized as an increase in the value of the related assets. The replacement or overhaul of entire components that increase the asset’s useful life or economic capacity are recorded as an increase in cost of the related assets, derecognizing the replaced or overhauled components. Expenditures for periodic maintenance and repair are recognized directly as an expense for the year in which they are incurred. Property, plant and equipment, net of its residual value, is depreciated by distributing the cost of the different items that comprise it on a straight-line basis over its estimated useful life, which is the period during which the Group expects to use the assets. Useful life estimates and residual values are reviewed on an annual basis and if appropriate adjusted prospectively. In addition, the Group recognizes right-of-use assets for leases relating to property, plant and equipment in accordance with the criteria established in Note 3.f. The following are the main categories of property, plant and equipment with their related estimated useful lives: Classes of property, plant and equipment Years of estimated useful life Buildings 10 – 60 Plant and equipment 6 – 65 IT equipment 3 – 15 Fixtures and fittings 2 – 35 Motor vehicles 5 – 10 In addition, for further information, the following is a more detailed breakdown of the class of plant and equipment: Class of plant and equipment Years of estimated Generating plant and equipment Hydroelectric plants Civil engineering works 10 – 65 Electromechanical equipment 10 – 45 Combined cycle power plants 10 – 25 Renewable 20 Distribution plant and equipment:: High-voltage network 10 – 60 Low- and medium-voltage network 10 – 50 Measuring and remote control equipment 10 – 50 Primary substations 6 – 25 Natural gas transportation Gas pipelines 20 Land is not depreciated since it has an indefinite useful life, unless it relates to a right-of- use asset in which case it is depreciated over the term of the lease. An item of property, plant and equipment is written off when sold or otherwise disposed of, or when no future economic benefits are expected to be obtained from its use, sale or other disposal. Gains or losses arising from sales of property, plant and equipment or PP&E items retired, are recognized as “Other gains (losses)” in the statement of comprehensive income and are determined as the difference between the sale value and net carrying amount of the asset. b) Investment property “Investment property” basically includes land and buildings that are kept for the purpose of obtaining gains from future sales or lease arrangements. Investment property is measured at acquisition cost, net of accumulated depreciation and any impairment losses experienced. Investment property, excluding land, is depreciated by distributing the cost of the several elements that comprise it on a straight-line basis over the years of useful life. An investment property is derecognized on disposal, or when no future economic benefits are expected from use or disposal. Gains or losses arising from the sale or disposal of items of investment property are recognized as “Other gains (losses)” in the statement of comprehensive income and determined as the difference between the sales amount and the net carrying amount of the asset. The fair value of investment property is disclosed in Note 17. c) Goodwill Goodwill arising from business combinations and reflected in consolidation, represents the excess of the value of the consideration transferred plus the amount of any non-controlling interest over the net identifiable assets acquired and liabilities assumed, measured at fair value at the date of acquisition of the subsidiary. During the measurement period of the business combination, goodwill may be adjusted as a result of changes in the provisional amounts recognized for the assets acquired and liabilities assumed (see Note 2.7.1). Goodwill arising from acquisition of companies with functional currencies other than the functional currency of the Parent is measured in the functional currency of the acquiree and translated to Chilean peso using the exchange rate effective as of the date of the statement of financial position. After initial recognition, goodwill is not amortized, but rather, at the end of each accounting period, or when there are indications thereof, an impairment test is performed to determine whether any impairment has occurred that reduces its recoverable value to an amount lower than the recorded net cost, and if this is the case, the impairment is recorded in the statement of income for the period (see Note 3.e). d) Intangible assets other than goodwill Intangible assets are initially recognized at their acquisition cost or production cost, and are subsequently measured at their cost, net of their accumulated amortization and impairment losses experienced. Intangible assets are amortized on a straight-line basis over their useful lives starting from the time they are in use, except for those assets with indefinite useful lives, for which amortization is not applicable. As of December 31, 2020 and 2019, intangible assets with indefinite useful lives amounted to ThCh$14,605,574 and ThCh$16,455,724, respectively, mainly related to easements and water rights. An intangible asset is derecognized when it is sold or otherwise disposed of, or when no future economic benefits are expected from its use, sale or other disposal. Gains or losses arising from sales of intangible assets are recognized in profit or loss for the period and determined as the difference between the amount of the sale and the carrying amount of the asset. The criteria for recognizing impairment losses on these assets and, if applicable, recoveries of impairment losses recorded in prior periods are explained in letter e) of this Note below. d.1) Research and development expenses The Group recognizes the costs incurred in a project’s development phase as intangible assets in the statement of financial position as long as the project’s technical feasibility and future economic benefits have been demonstrated. Research costs are recorded as an expense in the consolidated statement of comprehensive income in the period in which they are incurred. d.2) Other intangible assets These assets correspond mainly to computer software, water rights and easements. They are initially recognized at acquisition or production cost and are subsequently valued at cost net of the related accumulated amortization and impairment losses, if any. Computer software is amortized (on average) over four years. Certain easements and water rights have indefinite useful lives and are therefore not amortized. e) Impairment of non-financial assets During the period, and mainly at the end of each reporting period, the Group evaluates whether there is any indication that an asset has been impaired. If any such indication exists, the Group estimates the recoverable amount of that asset to determine the amount of the impairment loss. For identifiable assets that do not generate cash flows independently, the Group estimates the recoverable amount of the Cash Generating Unit (CGU) to which the asset belongs, which is understood to be the smallest identifiable group of assets that generates independent cash inflows. Notwithstanding the preceding paragraph, for CGUs to which goodwill or intangible assets with indefinite useful lives have been allocated, a recoverability analysis is performed routinely at each year-end. The criteria used to identify the CGUs are based, in line with Management’s strategic and operating vision, within the specific characteristics of the business, the operating rules and regulations of the market in which the Group operates and corporate organization. Recoverable amount is the higher of fair value less costs of disposal and value in use, which is defined as the present value of the estimated future cash flows. In order to calculate the recoverable amount of Property, plant, and equipment, as well as of goodwill and intangible assets, at the level of each CGUs the Group uses value in use criteria in practically all cases. To estimate value in use, the Group prepares future pre-tax cash flow forecasts based on the most recent budgets available. These budgets include Management’s best estimates of a CGU’s revenue and costs using sector forecasts, past experience and future expectations. In general, these projections cover the next three years, estimating cash flows for subsequent years by applying reasonable growth rates which, in no case, are increasing rates nor exceed the average long-term growth rates for the particular sector. At the end of December 2020, the rates used to extrapolate the projections were between 2.0% and 2.9%. Future cash flows are discounted to calculate their present value at a pre-tax rate that covers the cost of capital for the business activity and the geographic area in which it is being carried out. The time value of money and risk premiums generally used among analysts for the business activity and the geographic zone are taken into account to calculate the pre-tax rate. The pre-tax discount rates, expressed in nominal terms, applied at the end of December 2020 were between 6.3% and 8.2%. The Company’s approach to allocate value to each key assumption used to project cash flows, considers: - Demand evolution: the growth estimate has been calculated based on the projected increase in Gross Domestic Product (GDP), in addition to other assumptions used by the company regarding the evolution of consumption, such as the growth in the number of customers. - Energy purchase and sale prices: based on specifically developed internal projection models. The price of the planned “pool” is estimated by considering a number of determining factors, such as the different technology’ costs and productions and energy demand, among other items. - Regulatory measures: an important part of the Company’s business is regulated and subject to extensive standards, which could undergo revisions, either as a result of new laws or the amendment of existing laws, and therefore the projections include adequate application of the current standards, those that are currently being developed, and those expected to be effective during the projected period. - Installed capacity: in the estimating of the Group’s installed capacity, the existing facilities are taken into account, as well as the plans for both increasing capacity and capacity closure. The investment plan is constantly updated based on the evolution of the business, quality of service regulations determined by the regulator and changes in the business development strategy adopted by management. In the generation area, the investments necessary to maintain the installed capacity in adequate operating conditions are taken into account; in the distribution activity, investments for maintenance, improvement and strengthening of the network are considered, as well as the investments necessary to carry out the implementation of the technological improvement plan (Smart Meters). - Hydrology and NCRE: the projections are made from historical series of meteorological conditions and projecting an average year, based on these. - Fuel costs for the estimation of fuel costs take into consideration existing supply contracts and long-term projections of oil, gas or coal prices based on forward markets and available analysts' estimates. - Fixed costs: these are projected considering the foreseen level of business activities, both in terms of the evolution of the workforce (considering salary raises in line with the CPI), and in term of other operating and maintenance costs, the level of projected inflation and long-term existing maintenance or other contracts. The efficiencies that the Group is adopting over time are also considered, such as those that arise from the initiatives for the digitalization of internal processes. - External sources are always considered to verify the assumptions related to the macroeconomic environment such as price evolution, GDP growth, demand, inflation, interest rates and exchange rates, among others. Past experience has demonstrated the reliability of the Company’s forecasts, which allows it to base key assumptions on historical information. During 2020, the deviations observed with respect to the projections used to perform impairment testing as of December 31, 2019, were not significant and cash flows generated in 2020 remained in a reasonable variance range compared to those expected for that period, with the exception of the effects generated by the COVID-19 pandemic. Despite the degree of uncertainty of the evolution of the macroeconomic environment in the short term, as a result of COVID-19, Management has evaluated the recovery scenarios and has determined that there is no evidence of impairment in the Group's CGUs, which would make it necessary to estimate their value in use. If the recoverable amount of the CGU is less than the net carrying amount of the asset, the related impairment loss is recognized for the difference, and charged to “Impairment loss (impairment reversals) recognized in profit or loss” in the consolidated statement of comprehensive income. The impairment is first allocated to the CGU’s goodwill carrying amount, if any, and then to the other assets comprising it, prorated on the basis of the carrying amount of each one, limited to the fair value less costs of disposal, or value in use, where no negative amount could be obtained. Impairment losses recognized in prior periods for an asset other than goodwill are reversed, if and only if, there has been a change in the estimates used to determine the asset’s recoverable amount since the last impairment loss was recognized. If this is the case, the carrying amount of the asset is increased to its recoverable amount with a credit to profit or loss, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset. For goodwill, impairment losses are not reversed in subsequent periods. f) Leases In order to determine whether an arrangement is, or contains, a lease, Enel Chile assesses the economic substance of the agreement, assessing whether the agreement conveys the right to control the use of an identified asset for a period of time in exchange for consideration. Control is considered to exist if the customer has i) the right to obtain substantially all the economic benefits arising from the use of an identified asset; and ii) the right to direct the use of the asset. f.1) Lessee When the Group acts as a lessee at the commencement of the lease (i.e. on the date on which the underlying asset is available for use) it records a right-of-use asset and a lease liability in the statement of financial position. The Group initially recognizes right-of-use assets at cost. The cost of right-of-.use assets comprises: (i) the amount of the initial measurement of the lease liability; (ii) lease payments made until the commencement date less lease incentives received, (iii) initial direct costs incurred; and (iv) the estimate of decommissioning or restoration costs. Subsequently, the right-of-use asset is measured at cost, adjusted by any re measurement of the lease liability, less accumulated depreciation and accumulated impairment losses. A right-of-use asset is depreciated on the same terms as other similar depreciable assets, as long as there is reasonable certainty that the lessee will acquire ownership of the asset at the end of the lease. If no such certainty exists, the leased assets are depreciated over the shorter of the useful lives of the assets and their lease term. The same criteria detailed in Note 3.e are applied to determine whether the right-of-use asset has become impaired. Lease liabilities are initially measured at the present value of the lease payments, discounted at the Company's incremental borrowing rate, if the interest rate implicit in the lease cannot be readily determined. The incremental borrowing rate is the interest rate that the company would have to pay to borrow over a similar term, and with similar security, the funds necessary to obtain an asset of similar value to the right-of-use asset in a similar economic environment. The Group determines its incremental borrowing rate using observable data (such as market interest rates) or by making specific estimates when observable rates are not available (e.g., for subsidiaries that do not engage in financing transactions) or when they must be adjusted to reflect the terms and conditions of the lease (e.g., when the leases are not in the subsidiary's functional currency). Lease payments included in the measurement of liabilities comprise: i) fixed payments, less any lease incentive receivable; ii) variable lease payments that depend on an index or a rate; iii) residual value guarantees if it is reasonably certain that the Group will exercise that option; iv) the exercise price of a purchase option, if the Group is it is reasonably certain to exercise that option; and v) penalties for terminating the lease, if any. After the commencement date, the lease liability increases to reflect the accrual of interest and is reduced by the lease payments made. In addition, the carrying amount of the liability is remeasured if there is a change in the terms of the lease (changes in the lease term, in the amount of expected payments related to a residual value guarantee, in the evaluation of a purchase option or in an index or rate used to determine lease payments). Interest expense is recognized as finance cost and distributed over the years making up the lease period, so that a constant interest rate is obtained in each year on the outstanding balance of the lease liability. Short-term leases of one year or less or leases of low value assets are exempt from the application of the recognition criteria described above, with the payments associated with the lease recorded as an expense on a straight-line basis over the term of the lease. Right-of-use assets and lease liabilities are presented separately from other assets and liabilities, respectively, in the consolidated statement of financial position. f.2) Lessor When the Group acts as a lessor, it classifies at the commencement of the agreement whether the lease is an operating or finance lease, based on the substance of the transaction. Leases in which all the risks and rewards incidental to ownership of an underlying asset are substantially transferred are classified as finance leases. All other leases are classified as operating leases. For finance leases, at the commencement date, the Company recognizes in its statement of financial position the assets held under finance leases and presents them as an account receivable, for an amount equal to the net investment in the lease, calculated as the sum of the present value of the lease payments and the present value of any accrued residual value, discounted at the interest rate implicit in the lease. Subsequently, finance income is recognized over the term of the lease, based on a model that reflects a constant rate of return on the net financial investment made in the lease. For operating leases, lease payments are recognized as income on a straight-line basis, over the term of the lease unless another type of systematic basis of distribution is deemed more representative. The initial direct costs incurred in obtaining an operating lease are added to the carrying amount of the underlying asset and are recognized as expense throughout the lease period, applying the same basis as for rental income. g) Financial instruments Financial instruments are contracts that give rise to both a financial asset in one entity and a financial liability or equity instrument in another entity. g.1) Financial assets other than derivatives The Group classifies its non-derivative financial assets, whether permanent or temporary, excluding investments accounted for using the equity method (see Notes 3.i and 13) and non-current assets held for sale (see Note 3.k), in three categories: (i) Amortized cost This category includes the financial assets that meet the following conditions (i) the business model that supports the financial assets seeks to maintain such financial assets to obtain contractual cash flows, and (ii) the contractual terms of such financial assets give rise on specific dates to cash flows that are solely payments of principal and interest (SPPI criterion). Financial assets that meet the conditions established in IFRS 9, to be valued at amortized cost in the Group are: cash equivalents, accounts receivable and, loans. Such assets are recorded at amortized cost, which is the initial fair value, less repayments of principal, plus uncollected accrued interest, calculated using the effective interest method. The effective interest method is a method for calculating the amortized cost of a financial asset or a financial liability (or a group of financial assets or financial liabilities) and allocating the finance income or financial costs throughout the relevant period. The effective interest rate is the discount rate that exactly matches the estimated cash flows to be received or paid over the expected useful life of the financial instrument (or when appropriate in a shorter period of time), with the net carrying amount of the financial asset or financial liability. (ii) Financial Assets Recorded at Fair Value through Other Comprehensive Income This category includes the financial assets that the meet the following conditions: (i) they are classified in a business model, the purpose of which is to maintain the financial assets both to collect the contractual cash flows and to sell them, and (ii) the contractual conditions meet the SPPI criterion. These financial assets are recognized in the consolidated statement of financial position at fair value when this can be determined reliably. For the holdings in unlisted companies or companies with low liquidity, it is usually not possible to determine the fair value reliably, therefore, when this occurs, such holdings are valued at their acquisition cost or for a lower amount if there is evidence of their impairment. Changes in fair value, net of their tax effect, are recorded in the consolidated statement of comprehensive income: Other comprehensive income, until the disposal of these financial assets, where the accumulated amount in this section is fully allocated to profit or loss for the period except for investments in equity instruments where the accumulated balance in other comprehensive income is never reclassified to profit or loss. In the event that the fair value is lower than the acquisition cost, if there is objective evidence that the asset has suffered an impairment that cannot be considered as temporary, the difference is recorded directly in the loss for the period. (iii) Financial Assets Recorded at Fair Value through Profit or Loss This category includes the trading portfolio of the financial assets that have been allocated as such upon their initial recognition and which are managed and assessed according to the fair value criterion, and the financial assets that do not meet the conditions to be classified in the two categories indicated above. These are valued in the consolidated statement of financial position at fair value, and variations in their value are recorded directly in income when they occur. g.2) Cash and cash equivalents This item within the consolidated statement of financial position includes cash and bank balances, time deposits, and other highly liquid investments (with original maturity of less than or equal to 90 days) that are readily convertible into cash and are subject to insignificant risk of changes in value. g.3) Impairment of financial assets Following the requirements of IFRS 9, the Group applies an impairment model based on the determination of expected credit losses, based on the Group's past history, existing market conditions, as well as forward-looking estimates at the end of each reporting period. This model is applied to financial assets measured at amortized cost or measured at fair value through other comprehensive income, except for investments in equity instruments. Expected credit loss is the difference between the contractual cash flows that are due in accordance with the contract and all the cash flows that are expected to be received (i.e. all cash shortfalls), discounted at the original effective interest rate. It is determined considering: i) the probability of default (PD, Probability of Default); ii) loss given default (LGD, Loss Given Default), and iii) exposure at default (EAD, Exposure at Default). To determine the expected credit losses the Group applies two separate approaches: · General approach : applied to financial assets other than trade accounts receivable, contractual assets or lease receivables. This approach is based on the evaluation of significant increases in the credit risk of financial assets, from the date of initial recognition. If on the reporting date of the financial statements the credit risk has not increased significantly, the impairment losses are measured related to the expected credit losses in the next 12 months; if, on the contrary, the credit risk has increased significantly, the impairment is measured considering the expected credit losses throughout the lifetime of the asset. In general, the measurement of expected credit losses for financial assets other than trade accounts receivable, contractual assets or lease receivables, are performed separately. · Simplified approach: The Group applies a simplified approach for trade receivables, contract assets and lease receivables so that the impairment provision is always recognized related to the lifetime expected credit losses for the asset. This is the approach that the Group has mostly applied because trade receivables represent the main financial asset of Enel Chile and its subsidiaries. For trade accounts receivable, contractual assets and lease receivables, the Group applies two types of evaluations of expected credit losses: - Collective evaluation: based on grouping accounts receivable into specific groups or “clusters”, taking into account each business and the local regulatory context. Accounts receivable are grouped according to the characteristics of customer portfolios in terms of credit risk, maturity information and recovery rates. A specific definition of default is considered for each group. To measure the expected credit losses collectively, the Group considers the following assumptions: - PD: average default estimate, calculated for each group of trade receivables, taking into account a minimum of 24-month historical data. - LGD: calculated based on the recovery rates of a predetermined section, discounted at the effective interest rate; and - EAD: accounting exposure on reporting date, net of cash deposits, including invoices issued, but not due and invoices to be issued. - Analytical or individual evaluation: if accounts receivable are considered individually significant by Management and there is specific information regarding any significant increase in the credit risk, the Group applies an individual evaluation of accounts receivable. For the individual evaluation, the PD is obtained mainly from an external supplier, when it is possible to do so, and the LGD through an internal model that considers the recovery rate and other contractual and financial characteristics of accounts receivable. The expected credit loss is obtained by multiplying both factors by the EAD, which is defined as the accounting exposure at the reporting date, including the invoices issued but not due and invoices to be issued for services rendered, net of potential cash deposits obtained as guarantees. On the basis of the benchmark market and the regulatory context of the sector, as well as the recovery expectations after 90 days, for those accounts receivable, the Group mainly applies a predetermined definition of 180 days overdue to determine expected credit losses, since this is considered an effective indicator of a significant increase in credit risk. Consequently, financial assets that are more than 90 days overdue generally are not considered to be in default. Based on specific evaluations performed by Management, the prospective adjustment can be applied considering qualitative and quantitative information to reflect possible future events and macroeconomic scenarios, which may affect the risk of the portfolio or the financial instrument. g.4) Financial liabilities other than derivatives General financial liabilities are initially recognized, at fair value net of any costs incurred in the transaction. In subsequent periods, these obligations are measured at their amortized cost using the effective interest method (see Note 3.g.1). Lease liabilities are initially measured at the present value of future lease payments, determined in accordance with the criteria described in Note 3.f. In the particular case that a liability is the hedged item in a fair value hedge, as an exception, such liability is measured at its fair value for the portion of the hedged risk. In order to calculate the fair value of debt, both when it is recorded in the statement of financial position and for fair value disclosure purposes as shown in Note 23, debt has been divided into fixed interest rate debt (hereinafter “fixed-rate debt”) and floating interest rate debt (hereinafter “floating-rate debt”). Fixed-rate debt is that on which fixed-interest coupons established at the beginning of the transaction are paid explicitly or implicitly over its term. Floating-rate debt is that debt issued at floating interest rate, i.e., each coupon is established at the beginning of each period based on the benchmark interest rate. All debt has been measured by discounting expected future cash flows with a market interest rate curve based on the payment currency. g.5) Derivative financial instruments and hedge accounting Derivatives held by the Group are transactions entered into to hedge interest and/or exchange rate risk, intended to eliminate or significantly reduce these risks in the underlying transactions being hedged. Derivatives are recorded at fair value at the end of each reporting period as follows: if their fair value is positive, they are recorded within “Other financial assets” and if their fair value is negative, they are recorded withi

Sector Regulation and Electrici

Sector Regulation and Electricity System Operations	12 Months Ended
	Dec. 31, 2020
SECTOR REGULATION AND ELECTRICITY SYSTEM OPERATIONS
Sector Regulation And Electricity System Operations	4. SECTOR REGULATION AND ELECTRICITY SYSTEM OPERATIONS a) Regulatory Framework The Chilean electricity sector is regulated by the General Law of Electricity Services No. 20,018, contained in DFL No. 1 of 1982, of the Ministry of Mining, whose restated and coordinated text was established by DFL No. 4 of 2006 of the Ministry of Economy (“Electricity Law”) and its corresponding Regulations, contained in DS No. 327 of 1998. The main authority on energy matters is the Ministry of Energy, which is responsible for proposing and conducting public policies on energy, strengthening coordination, and facilitating a comprehensive vision of the sector. It was created on February 1, 2010 as an autonomous body, after years of being part of the Ministry of Mining. Within the Ministry of Energy is the regulatory body of the electricity sector (the National Energy Commission) and the oversight entity (the Superintendency of Electricity and Fuels). The Ministry also includes the Chilean Commission of Nuclear Energy (CChEN) and the Energy Sustainability Agency. The National Energy Commission (CNE) has the authority to propose regulated rates, approve transmission expansion plans, and create instruction plans for the construction of new generation units. Meanwhile, the Superintendency of Electricity and Fuels (SEF) supervises and oversees compliance with laws, regulations, and technical standards for the generation, transmission and distribution of electricity, liquid fuels, and gas. Additionally, the legislation considers a Panel of Experts, composed of expert professionals whose key job is to decide on any discrepancies produced in terms of the matters established in the Electricity Law and in the application of other laws on energy, through binding rulings. The Law establishes a National Electric Coordinator, an independent body of public law, responsible for the operation and coordination of the Chilean electricity system, whose main objectives are: i) To preserve the security of the service, ii) To guarantee the economic operation of the electricity system's interconnected facilities, and iii) To guarantee free access to all transmission systems. Its main activities include coordinating the Electricity Market, authorizing connections, managing complementary services, implementing public information systems, monitoring competition and the payment chain, among others. From a physical perspective, the Chilean electricity sector is divided into three main electricity systems: the National Electricity System (SEN) and two isolated medium-sized systems: Aysén and Magallanes. The SEN was created from the interconnection of the Central Interconnected System (SIC) and the Great North Interconnected System (SING) in November 2017. Until the interconnection, the SIC was the country's main system, extending longitudinally across 2,400 km, and linking Taltal, to the north, to Quellon on the Island of Chiloe, to the south. Meanwhile, the SING covered the north of Chile, from Arica to Coloso, covering a length of 700 km. The Chilean electricity industry can be divided into three main activities: Generation, Transmission and Distribution. The electricity facilities associated with these three activities have the obligation to operate in an interconnected and coordinated manner, with the primary objective of providing electricity to the market at minimal cost and within the service quality and safety standards required by the electricity regulations. Due to their essential nature, the Transmission and Distribution activities constitute natural monopolies, therefore their segments are regulated as such by the electricity regulations, requiring free access to the grids and definition of regulated rates. In the electricity market, two products (Energy and Capacity) are traded and different services are provided. In particular, the National Electric Coordinator is responsible for making balances, determining the corresponding transfers between generators, and calculating the marginal time-specific cost, the price at which energy transfers are valued. On the other hand, the CNE determines the prices of Capacity. Consumers are classified according to the size of their demand as regulated or free customers. Regulated customers are those with a connected capacity lower than 5,000 kW. However, customers with connected capacity between 500 kW and 5,000 kW may choose between the free or regulated rate system. Integration and Concentration Limits In Chile, there is legislation to defend free competition, which along with the specific regulations applicable to electricity, define the criteria to avoid certain levels of economic concentration and/or abusive market practices. In principle, companies are allowed to participate in different activities (generation, distribution, commercialization) as long as there is adequate separation of these, both in accounting and corporate terms. Nevertheless, the transmission sector is where most restrictions are imposed, mainly due to its nature and the need to guarantee proper access to all agents. The Electricity Law defines the limits of participation for generation or distribution companies in the National Transmission segment, and prohibits the participation of the National Transmission companies in the generation and distribution segment. a.1 Generation Segment Generation companies must operate under the Coordinator's operations plan. However, each company can freely decide to sell its energy and capacity to regulated or unregulated customers. Any surplus or deficit between their sales to customers and production is sold to or bought from other generators at the spot market price. A generation company may have the following types of customers: · Free Customers, users with a connected capacity of more than 5,000 kW. (mainly industrial and mining companies), or customers with connected capacity between 500 and 5,000 kW that choose to be a free customer, for at least four years. These consumers can freely negotiate their electricity supply prices with suppliers. · Distribution Companies, which deliver supply to their regulated customers. Distribution companies buy energy from generation companies through a public bid process regulated by the CNE. · Other Generation Companies: The relationship between generation companies may exist either through bilateral contracts or transfers in the short-term or Spot Market. The latter correspond to energy and capacity transactions among generation companies coordinated by the National Electric Coordinator to achieve the cost-effective operation of the system; any surplus (deficit) in production with respect to their commercial commitments are transferred through sales (purchases) to other generators within the system, valuing energy at marginal cost and capacity at the corresponding regulated price established bi-annually by the authority. In Chile, the capacity to be paid to each generator depends on a calculation performed centrally by the National Electric Coordinator each year, based on current regulations, in order to obtain the sufficiency capacity for each plant. This value depends primarily on the availability of the facilities themselves and the technology-specific generation resource. Non-Conventional Renewable Energies Law No. 20,257 of April 2008, promotes the use of Non-Conventional Renewable Energies (NCRE). The main aspect of this law is that it required generators, between 2010 and 2014, to ensure that at least 5% of their energy sold to customers came from renewable sources, progressively increasing by 0.5% between 2014 and 2024, to reach 10%. This Law was modified in 2013 by Law No. 20.698, entitled 20/25, which establishes that by the year 2025, 20% of the electricity matrix will be covered by NCRE, respecting the withdrawal plan provided by the previous law for contracts effective as of July 2013. a.2 Transmission Segment The transmission systems comprise lines and substations within an electricity system and which are not distribution facilities. These are divided into five segments: National Transmission, Transmission for Development Hubs, Zonal Transmission, Dedicated Transmission, and International Interconnected Systems. The transmission facilities are subject to an open access system and may be used by any interested user under non-discriminatory conditions. The remuneration of the existing facilities in the National Transmission and Zonal Transmission segments is determined through a fee-setting process performed every four years. This process determines the Annual Value of Transmission, which includes efficient operating and maintenance costs and the annual value of investment, determined according to a discount rate (7% minimum after taxes) set by the authority every four years based on a study and the economic useful lives of the facilities. The planning of the National Transmission and Zonal Transmission systems is a regulated and centralized process, where each year the National Electric Coordinator issues an expansion plan that is published by the CNE in a call for proposals. The Expansion Plan report can receive observations by participants and must be ultimately approved by the CNE. The expansions of both systems is performed through open bids, distinguishing between new works and expansion works on existing facilities. In the case of new works, the execution is subject to bid and the winning bidder takes over ownership of the facility. In the case of the expansion works on existing facilities, the original owner of the facility is also the owner of its expansion, but the construction must be awarded by bid. Both types of bids are managed by the Coordinator. The remuneration of new works corresponds to the resulting value of the bid, which constitutes income for the first 20 years of operation. Meanwhile, the remuneration of new works includes the resulting value of investment from the bid and the applicable operations and maintenance costs. In both cases, as of the 21st year, the remuneration of these transmission facilities is determined as if they were existing facilities. Current regulations define that transmission is remunerated by the sum of rate revenue and the collection of charges for the use of the transmission systems. These charges are defined ($/kWh) by the CNE twice a year. a.3 Distribution Segment The distribution system corresponds to electric facilities aimed at supplying electricity to final customers, at a maximum voltage of 23 kV. Distribution companies operate under a public service concessions system and are required to provide service to all customers and supply electricity to all customers subject to regulated rates (clients with connected capacity less than 5,000 kW, with the exception of customers between 500 and 5,000 kW who may opt for the free rate). Note that free-rate customers may negotiate their supply with any supplier, and must pay a regulated toll for using the distribution network. Regarding the supply for users subject to price regulation, the law establishes that distribution companies must provide an ongoing energy supply, based on open, non-discriminatory and transparent public bids. These bid processes are designed by the CNE and carried out at least 5 years ahead of time, with a supply contract agreement of up to 20 years. In the case of unforeseen variations in demand, the authority has the power to carry out a short-term bid. There is also a regulated procedure to remunerate potential supply not under contract. The fee-setting in this segment is performed every four years based on a cost study to determine the Added Value of Distribution (AVD). The AVD is determined according to an efficient model company scheme and the concept of typical area. On December 21, 2019, the Ministry of Energy published Law No. 21,194 (Short Law) which reduces the Profitability of Distribution Companies and modifies the Electricity Distribution rate process. To determine the AVD, the CNE classifies companies with similar distribution costs into groups known as “typical areas.” For each typical area, the CNE engages independent consultants to carry out a study to determine the costs associated with an efficient model company, considering fixed costs, average energy and capacity losses, and standard investment, maintenance, and operating costs related to distribution, including some restrictions faced by real distribution companies. The annual costs of investment are calculated considering the New Replacement Value (NRV) of the facilities adapted to demand, their useful life, and a rate of renewal, calculated every four years by the CNE, which must be an annual rate between 6% and 8% after taxes. Subsequently, the rates are structured and the economic profitability rate after taxes is validated, which may not differ by more than two points higher or three points lower than the rate defined by the CNE. Additionally, and along with the calculation of the AVD, every four years the CNE reviews the Related Services not consisting of energy supply which the Free Competition Defense Court qualifies as subject to rate regulation. The Chilean distribution rate model is a consolidated model, with nine price-setting processes carried out since the General Law of Electricity Services was ratified in 1982. b) Regulatory Laws 2019 - 2020 (i) Law No. 21,185 – Creates a Transitory Mechanism to Stabilize Electricity Prices for Customers Subject to Rate Regulation. On November 2, 2019, the Ministry of Energy published Law No. 21.185, which creates a Transitory Mechanism to Stabilize Electricity Prices for Customers Subject to Rate Regulation. Through this Law, between July 1, 2019 and December 31, 2020, the prices to be transferred to regulated customers are the price levels defined for the first half of 2019 (Decree 20T/2018) to be referred to as “Stabilized Price to Regulated Customers” (PEC). Between January 1, 2021 and until the end of the stabilization mechanism, prices shall be those defined in the semiannual price-setting processes referred to in article 158 of the Electricity Law, but may not be higher than the adjusted PEC according to the Consumer Price Index as of January 1, 2021, based on the same date (adjusted PEC). Any billing differences that arise will generate an account receivable in favor of the generators, up to a limit of MUS$ 1,350 until 2023. The balance must be recovered by December 31, 2027. The technical provisions on this mechanism are established in Exempt Resolution No. 72/2020, of the National Energy Commission, and its modifications. (ii) Law No. 21,194 - Reduces the Profitability of Distribution Companies and modifies the Electricity Distribution rate process On December 21, 2019, the Ministry of Energy published Law No. 21,194, which reduces the Profitability of Distribution Companies and modifies the Electricity Distribution rate process. This Law eliminates the proportion of two-thirds for the AVD study performed by the CNE and one-third for the AVD study done by distribution companies, replacing it with a single study ordered by the CNE. On the other hand, it modifies the renewal rate for the calculation of annual investment costs from an annual real rate of 10% to a rate calculated by the CNE every four years, which shall be an annual rate that may be no less than 6% and no greater than 8% after taxes. The economic profitability rate after taxes for distribution companies must not differ by more than two points higher or three points lower than the rate defined by the CNE. Additionally, distribution companies must have an exclusive line of business as of January 2021. (iii) CNE Exempt Resolution No. 176 /2020 - Exclusive Line of Business On June 9, 2020, Exempt Resolution No. 176 was published in the Official Gazette. This resolution determines the scope of the Exclusive Line of Business and Separate Accounting obligations, for the provision of public electricity distribution service in accordance with Law No.21,194. According to this Resolution and its modifications, the distribution companies acting as public service concessions companies and operating in the National Electricity System must be constituted exclusively as distribution companies and may only perform economic activities aimed at providing public distribution services, in accordance with the requirements established by Law and current regulations. The requirements contained in said Resolution shall be applied starting January 1, 2021. Notwithstanding the above, those operations that by nature cannot be performed prior to this date must be reported and justified to the CNE, including a planning schedule and the compliance periods for the respective requirements, which under no circumstances may exceed January 1, 2022. (iv) Law No. 21,249 – Exceptional provision of the measures indicated for final users of water and sanitation, electricity, and gas services. Last modification to Law No. 21,301 On August 8, 2020, the Law on Utility Services was passed. This law considers extraordinary measures to support the most vulnerable customers, although Enel Distribución Chile had already been applying most of these measures. These measures include the suspension of the electricity supply disconnection due to default and the possibility of signing agreements to pay off electricity debt in installments, in both cases, for a group of vulnerable customers. The suspended disconnection benefit was for a duration of 90 days following publication of the Law, and debts accumulated by customers covered by this measure must be paid within a maximum of 12 installments from the end of the grace period. On December 29, 2020, Law No. 21,301 was ratified and extended the terms defined in Law No. 21,249, establishing a benefit duration of 270 days following ratification of this new Law, as opposed to the initial 90 days. Likewise, the number of installments was modified to a maximum of 36, instead of the previously defined maximum of 12 installments. (v) Law No. 21,304 - Electricity Supply for Electro-Dependent Individuals On January 21, 2021, the Law on Electro-Dependent Individuals was passed to address home healthcare patients whose health treatment requires them to be physically connected permanently or temporarily to a medical device that operates on electricity. The law establishes that concessions companies must keep a record of electro-dependent individuals residing in their respective concessions zones, who have a certificate from their attending physician to accredit such condition, indicating the medical device they require for treatment and its characteristics. On the other hand, concessions companies must implement any technical solutions to help mitigate the effects of interruptions to the electricity supply, and prioritize reestablishing service to the residence of electro-dependent individuals. Moreover, they must incorporate a mechanism between the home’s central connection system and the medical devices to measure the consumption, at the company’s expense, and this measurement must be discounted from the home's monthly total consumption. This law will go into effect once the respective regulations have been issued, within six months from the publication of the law. (vi) On September 9, 2020, a bill was filed at the Chamber of Representatives for the purpose of modifying the General Law on Electricity Services in order to establish the right to electricity portability and introduce the figure of energy commercializer. This would uncouple all services that may be offered to the distribution company's final customers, so that the distribution company be dedicated exclusively to the operation of its grids. It considers a transition period to be defined in future decrees, so that regulated consumers in certain areas may gradually obtain the freedom to choose their commercializer. The main point of discussion of this bill is related to the gradual market liberalization and could affect existing regulated contracts. CNE 2020 Regulatory Plan By way of Exempt Resolution No. 776 of December 16, 2019, in accordance with the provisions of article 72-19 of the General Law on Electrical Services, the CNE published its Annual Work Plan for the creation and development of the technical regulations for 2020. The document defines the general guidelines and programming priorities of the CNE 2020 Regulatory Work Plan and the regulatory procedures pending from the 2019 Plan, which continued to be developed during 2020. By way of Exempt Resolutions No. 231 and 313 of June 30, 2020 and August 19, 2020, respectively, Exempt Resolution No. 776 on the 2020 regulatory plan was modified. CNE 2021 Regulatory Plan By way of Exempt Resolution No. 471 of December 15, 2020, in accordance with the provisions of article 72-19 of the General Law on Electrical Services, the CNE published its Annual Work Plan for the creation and development of the technical regulations for 2021. The document defines the general guidelines and programming priorities of the CNE 2021 Regulatory Work Plan and the regulatory procedures pending from the 2020 Plan, which will begin or continue to be developed during 2021. Regulations Published in 2019 - 2020 Regulations on Complementary Services . On March 27, 2019, the Ministry of Energy published Decree No. 113/2017, with the Regulations on Complementary Services as referred to in article No. 72-7 of the General Law of Electricity Services, with deferred application from January 1, 2020. Regulations on the Coordination and Operation of the National Electricity System . On December 20, 2019, the Ministry of Energy published Decree No. 125/2017 with the Regulations on the Coordination and Operation of the National Electricity System. Regulation Standard 4. On March 5, 2020, the Ministry of Energy published Decree No. 8/2019 with the Regulations on the Security of Electricity Consumption Facilities. Regulations on the Valuation of Transmission. On June 13, 2020, the Ministry of Energy published Decree No. 10/2019 with the Regulations on the Rating, Valuation, Price-Setting, and Remuneration of Transmission Facilities. Regulations on Net billing. On September 24, 2020, the Ministry of Energy published Decree No. 57/2019 with the Regulations on Distributed Generation for Self-Consumption. Regulations on the Planning of Transmission . On October 30, 2020, Decree No. 37/2019 was refiled at the Office of the Comptroller General of the Republic. This decree approves the Regulations on Transmission Systems and the Planning of Transmission, which is still pending approval. Modification to the Regulations on Sufficiency Capacity. On December 26, 2020, the Ministry of Energy published Decree No. 42 which modifies the Regulations on Capacity in force in Supreme Decree 62/2006. These Regulations incorporate the State of Strategic Reserve, which recognizes a proportion of the sufficiency capacity of plants that are withdrawn from the system within the framework of the decarbonization plan within 5 years from the date of announcement. Additionally, it establishes a calculation methodology to recognize the sufficiency capacity for hydroelectric plants with storage capacity. Expansion of Transmission 2017 Transmission Expansion Plan In compliance with the process phases stipulated by law, the Ministry of Energy published Exempt Decree No. 293/2018 on November 8, 2018, which establishes the Expansion Works to the National and Zonal Transmission Systems to begin their bid process during the following twelve months (later modified by Exempt Decree No. 202/2019 of August 13, 2019). On January 9, 2019, the Ministry of Energy published Exempt Decree No. 4/2019, which establishes the New Works on the National and Zonal Transmission Systems to begin their bid process during the following twelve months. 2018 Transmission Expansion Plan In compliance with the process phases stipulated by law, the Ministry of Energy published Exempt Decree No. 231/2019 on September 24, 2019, which establishes the New Works on the National and Zonal Transmission Systems to begin their bid process or fringe studies, as applicable, during the following twelve months. On August 10, 2019, the Ministry of Energy published Exempt Decree No. 198/2019, which establishes the Expansion Works to the National and Zonal Transmission Systems to begin their bid process during the following twelve months, corresponding to the 2018 expansion plan. 2019 Transmission Expansion Plan In compliance with the process phases stipulated by law, the Ministry of Energy published Exempt Decree No. 185/2020 on October 2, 2020, which establishes the New Works on the National and Zonal Transmission Systems to begin their bid process or area studies, as applicable, during the following twelve months, according to the 2019 expansion plan. On September 14, 2020, the Ministry of Energy published Exempt Decree No. 171/2020, which establishes the Expansion Works to the National and Zonal Transmission Systems to begin their bid process during the following twelve months, corresponding to the 2019 expansion plan. 2020 Transmission Expansion Plan In accordance with article 91 of Law 20,936/2016, which establishes the Transmission Planning Procedure, the National Electric Coordinator sent the expansion proposal for the different transmission segments to the CNE on January 22, 2020. Subsequently, the CNE issued a call to submit proposals for Transmission Expansion projects by April 22, 2020, although this deadline was extended to May 27, 2020 by Exempt Resolution No. 132/2020. c. Tariff Revisions and Supply Processes c.1 Distribution Price-Setting The price-setting process for the 2016-2020 period culminated on August 24, 2017 with the publication of Decree No. 11T/2016 in the Official Gazette, which establishes the distribution rate formulas effective from November 4, 2016. On September 28, 2018, the Ministry of Energy Decree No. 5T went into effect, updating Decree No. 11T/2016 by the same Ministry and modifying the electricity rates in force for the distribution segment until the next price-setting process. On July 26, 2019, through Ordinary Official Letter No. 15699/2019, the SEF instructed a plan of action to apply the adjustment indicated in the CNE Ordinary Official Letter No. 490/2019, with respect to the Ministry of Energy Decree No. 5T/2018. The adjustment was effective retroactively from September 28, 2018. The final customer rates that have governed during 2020 are determined according to the following decrees and resolutions: i) Decree No. 11T/2016, which establishes the rate formulas applicable to electricity supply subject to regulated prices, published in the Official Gazette on August 24, 2017, was effective retroactively from November 4, 2016. ii) Decree No. 2T/2018, which establishes the rate formulas applicable to electricity supply subject to regulated prices, published in the Official Gazette on June 27, 2018, and which is effective for the four-year period from November 2016 to November 2020. iii) Decree No. 5T/2018, which establishes the rate formulas applicable to electricity supply subject to regulated prices as indicated in Decree No. 11T of 2016, published in the Official Gazette on September 28, 2018, and which was effective from the date of publication. iv) SEF Ordinary Official Letter No. 15699/2019, which instructs the action plan for the adjustment informed in CNE Ordinary Official Letter No. 490/2019, with respect to the Ministry of Energy Decree No. 5T/2018, effective retroactively from September 28, 2018 to November 3, 2020. v) Decree No. 6T/2017, which establishes the Annual Value by Bracket for Zonal and Dedicated Transmission Facilities used by users subject to price regulation, its rates and indexing formulas for 2018-2019, published by the Ministry of Energy in the Official Gazette on October 5, 2018, and effective from January 1, 2018 to December 31, 2019. vi) Price Decrees: - Average Regulated Prices: On May 6, 2019, the Ministry of Energy published Decree No. 20T/2018 in the Official Gazette, which establishes the average regulated prices in the national electricity system, as well as the adjustments and surcharges upon application of the Residential Rate Equality Mechanism, effective retroactively as of January 1, 2019. On October 5, 2019, the Ministry of Energy published Decree No. 7T/2019 in the Official Gazette, which establishes the average regulated prices in the national electricity system, as well as the adjustments and surcharges upon application of the Residential Rate Equality Mechanism, effective retroactively from July 1, 2019. On November 2, 2019, the Ministry of Energy published Law No. 21,185, which creates a Transitory mechanism to stabilize electricity prices for customers subject to rate regulation. Article 5 of this Law repeals Decree 7T/2019, and extends the effective term of Decree No. 20T/2018 from its original effective date until the publication of the subsequent average regulated price decree. On November 2, 2020, the Ministry of Energy published Decree No. 6T/2020 in the Official Gazette, which establishes the average regulated prices in the national electricity system, as well as the adjustment factor for application of the price stabilization transitory mechanism considered in Law No. 21,185, effective from January 1, 2020. Given the price stabilization mechanism, the publication of this decree had no effect on the final regulated customer rate. - Short Term Regulated Prices On October 23, 2019, the Ministry of Energy published Decree No. 9T/2019, which establishes the regulated prices for electricity supply, effective retroactively from October 1, 2019. On April 7, 2020, the Ministry of Energy published Decree No. 2T/2020, which establishes the regulated prices for electricity supply, effective from April 1, 2020. On December 3, 2020, the Ministry of Energy published Decree No. 12T/2020, which establishes the regulated prices for electricity supply, effective from October 1, 2020. c.2 Through Exempt Resolution No. 24 of January 21, 2020, the CNE published the Preliminary Technical Terms and Conditions for calculating the components of the Added Value of Distribution for the 2020-2024 period, and the Cost Study on electricity supply-related services, initiating the distribution price setting process for the corresponding four-year period. In compliance with the process phases established by law, the interested parties made observations on the terms and conditions and submitted discrepancies to the Panel of Experts. Then, on June 11, 2020, the CNE published the Final Technical Terms and Conditions in Exempt Resolution No. 195. On July 17, 2020, Exempt Resolution No. 256 constituted the Cost Studies Committee established in article 183 bis of the General Law of Electricity Services. Through Exempt Resolutions No. 336 and 366 of September 1, 2020 and September 24, 2020, respectively, updates were incorporated to Exempt Resolution No. 256 regarding the primary and alternate representatives. On August 18, 2020, the CNE informed that the Added Value of Distribution 2020-2024 study had been awarded to the company INECON, which was the fourth bid awarded for this type of study . On November 17, 2020, Progress Report No. 1 of the study was submitted, and Exempt Resolution No. 4 of January 4, 2021 extended the deadlines for Progress Report No. 2 and the Final Report to February 8, 2021 and March 8, 2021, respectively. c.3 On July 24, 2018, the Ministry of Energy published Decree No. 13T/2018 in the Official Gazette, which establishes the prices of Services other than energy supply related to electricity distribution. These prices were effective from the date of publication of said decree and are still in force to date. According to legislation, a new price-setting process for Services other than energy supply related to electricity distribution shall be performed at the same time as the Distribution Price Setting for 2020-2024. c.4 On October 5, 2018, the Ministry of Energy published Decree No. 6T/2017, which establishes the annual value by bracket of zonal and dedicated transmission facilities used by users subject to price regulation, its rates and indexing formulas for 2018-2019. c.5 Zonal Transmission Price Setting 2020-2023 Within the framework of the Transmission Price Setting 2020-2023, the following processes are performed: Rating of Transmission System Facilities, Determination of the Useful Life of Transmission Facilities, and Definition of the Technical and Administrative Terms and Conditions for the Transmission Facilities Appraisal Study. In this context, for the purposes of the Rating of T

Business Combinations Under Com

Business Combinations Under Common Control	12 Months Ended
	Dec. 31, 2020
BUSINESS COMBINATIONS UNDER COMMON CONTROL
Business Combinations Under Common Control	5 . Corporate Reorganization Project Considering the high priority given to renewable energies in the Group's strategy, and for the purpose of consolidating a vehicle to maximize this strategy, on August 25, 2017, Enel Chile submitted a proposal to the consideration of Enel S.p.A. for a corporate reorganization (hereinafter “the Reorganization of Renewable Assets”), which consisted of integrating the renewable energy assets in Chile held by Enel Green Power Latin America S.A. (“EGPL”) along with Enel Chile, which was also the controller of conventional energy generation assets belonging to Enel Generación Chile S.A. (“Enel Generación Chile”) and electricity distribution assets belonging to Enel Distribución Chile S.A. Enel Chile and Enel Generación Chile are entities registered with the Financial Market Commission and have American Depository Receipts (“ADS”) traded in the New York Stock Exchange, therefore they are also subject to regulation by the U.S. Securities and Exchange Commission. EGPL was an indirect subsidiary of Enel S.p.A., controlled through Enel Green Power S.p.A. (“EGP”). The proposed reorganization involved the following phases, each of which was conditioned upon the implementation of the other, as described below: i) Tender Offer for the acquisition of the shares (“OPA”) Enel Chile conducted a tender offer for the acquisition of the shares, aimed at acquiring all shares issued by the subsidiary Enel Generación Chile, which were owned by the latter’s minority shareholders (equivalent to approximately 40% of paid-in capital), in cash at a price of Ch$590 per share with the condition that the shareholders of Enel Generación Chile use Ch$236 to subscribe Enel Chile shares, and the ADS would be priced at Ch$17,700, also payable in cash and subject to Ch$7,080 being used to subscribe Enel Chile ADS, at a subscription price of Ch$82 per Enel Chile share or Ch$4,100 per Enel Chile ADS (the “Share/ADS Subscription Condition”). ii) Capital increase Enel Chile undertook a capital increase (the “Capital increase”) in order to have sufficient Enel Chile ordinary shares to provide to the shareholder and ADS holders of Enel Generación Chile to meet the Share/ADS Subscription Condition. With respect to the capital increase, according to Chilean legislation, Enel Chile made a preferential share subscription offer, where shareholders or third parties that exercised their subscription rights could grant the corresponding share subscription contracts in the apportionment process and proceed to pay Ch$82 per share corresponding to the shares subscribed by them. iii) Merger Once the tender offer was declared successful, EGPL merged with Enel Chile (the “Merger”). Consequently, the renewable assets owned by EGPL were integrated within Enel Chile. At the Enel Chile Extraordinary Shareholders’ Meeting held on December 20, 2017, the Reorganization was approved, subject to fulfillment of the conditions established for the tender offer, capital increase and merger. The Meeting also approved Enel Chile's capital increase in the amount of Ch$1,891,727,278,668, through the issuance of 23,069,844,862 new shares, all of a single series and with no par value, according to the price and other conditions approved by the Shareholders. Finally, on March 25, 2018, modifications were also approved and made to Enel Chile articles by-laws to reflect the agreements on the Merger, Capital Increase, and expansion of the corporate purpose of Enel Chile, among other provisions. The tender offer occurred between February 16 and March 22, 2018, and the preferential shares related to the capital increase were subscribed between February 15 and March 16, 2018. The Reorganization of Renewable Assets (including the Merger), was finalized and was effective from April 2, 2018, thus increasing Enel Chile’s interest in Enel Generación Chile from 59.98% to 93.55% and completing the merger of Enel Chile and EGPL. As of that date, Enel S.p.A. increased its total interest in Enel Chile to 61.93%. This merger was accounted for in accordance with the accounting criteria established in Note 2.7.5 and generated a charge to Other miscellaneous reserves under Enel Chile's equity, in the amount of ThCh$407,354,462 (see Note 27.5.c.v.). Carrying amount of EGPL assets and liabilities at the date of merger: Identifiable net assets acquired ThCh$ Cash and cash equivalents 12,173,982 Other current financial assets 8,460 Other current non-financial assets 3,832,583 Trade and other receivables, current 27,414,273 Current receivables to related parties 73,749,131 Inventories 2,851,171 Current tax assets 2,750,250 Other non-current financial assets 5,685,422 Other non-current non-financial assets 262,878 Trade and other receivables, non-current 43,829,961 Intangible assets other than goodwill 41,786,159 Goodwill 6,652,935 Property, plant and equipment 1,365,850,084 Deferred tax assets 21,246,605 Other current financial liabilities Trade and other current payables, current Current payables to related parties Current tax liabilities Other non-current financial liabilities Non-current accounts payable to related parties Other non-current provision Deferred tax liabilities Provisions for non-current employee benefits Net identifiable assets acquired 739,030,509

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2020
CASH AND CASH EQUIVALENTS
Cash and Cash Equivalents	6 . CASH AND CASH EQUIVALENTS a) The details of cash and cash equivalents as of December 31, 2020 and 2019 are as follows: As of December 31, 2020 2019 Cash and Cash Equivalents ThCh$ ThCh$ Cash balances 42,660 31,416 Bank balances 330,471,774 24,960,269 Time deposits 591,570 14,600,772 Other fixed-income instruments 930,009 196,092,043 Total 332,036,013 235,684,500 Time deposits have a maturity of three months or less from their date of acquisition and accrue the market interest for this type of short-term investment. Other fixed-income investments are mainly comprised of resale agreements maturing in 90 days or less from the date of investment. There are no restrictions for significant amounts of cash availability. b) The detail, by type of currency, of the above balance is as follows: As of December 31, 2020 2019 Currency ThCh$ ThCh$ Chilean peso 300,357,148 209,818,277 Argentinean peso 3,977,675 7,096,519 Euro 83,819 654,319 U.S. dollar 27,617,371 18,115,385 Total 332,036,013 235,684,500 c) The following table records the components of “Other payments for operating activities” line item in the Statement of Cash Flows: 2020 2019 2018 Other payments from operating activities ThCh$ ThCh$ ThCh$ VAT tax debit (135,096,018) (123,065,058) (111,371,155) Emissions tax (23,800,541) (15,563,495) (16,437,441) Others (11,394,034) (15,871,496) (9,543,503) Total (170,290,593) (154,500,049) (137,352,099) d) Reconciliation of liabilities arising from financing activities: Financing Cash Flows Non-Cash Changes Liabilities arising from financing activities Balance as of From Used Interest paid Total Acquisition of subsidiaries Changes in fair Foreign exchange Financial costs New Other changes Balance as of ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Short-term loans 158,284,616 199,395 (150,878,247) (137,759,315) (288,438,167) — (1,893,193) 3,280,020 133,794,543 — 152,545,857 157,573,676 Long-term loans 2,470,532,068 484,520,001 (4,791,827) — 479,728,174 — 12,628,182 (165,703,734) 2,646,905 — (151,799,376) 2,648,032,219 Lease liabilities (Nota 21) 53,407,689 — (4,940,582) (1,492,089) (6,432,671) — — 48,124 2,137,451 2,704,926 — 51,865,519 Assets held to cover liabilities arising from financing activities (4,862,949) 708,062 — — 708,062 — (4,578,826) (7,756,977) — — — (16,490,690) Total 2,677,361,424 485,427,458 (160,610,656) (139,251,404) 185,565,398 — 6,156,163 (170,132,567) 138,578,899 2,704,926 746,481 2,840,980,724 Financing Cash Flows Non-Cash Changes Liabilities arising from financing activities Balance as of From Used Interest paid Total Acquisition of subsidiaries Changes in fair Foreign exchange Financial costs New Other changes Balance as of ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Short-term loans 408,415,562 — (350,652,302) (133,788,145) (484,440,447) — — 9,096,964 134,487,859 — 90,724,678 158,284,616 Long-term loans 2,140,557,500 283,799,437 — — 283,799,437 — 7,924,704 137,637,204 — — (99,386,777) 2,470,532,068 Lease liabilities (Nota 21) 14,476,449 — (4,498,202) (641,609) (5,139,811) — — 4,437,228 1,815,169 37,818,654 — 53,407,689 Assets held to cover liabilities arising from financing activities (43,213,556) 1,823,783 — — 1,823,783 — 38,471,730 (2,231,057) — — 286,151 (4,862,949) Total 2,520,235,955 285,623,220 (355,150,504) (134,429,754) (203,957,038) — 46,396,434 148,940,339 136,303,028 37,818,654 (8,375,948) 2,677,361,424 Financing Cash Flows Non-Cash Changes Liabilities arising from financing activities Balance as of From Used Interest paid Total Acquisition of subsidiaries Changes in fair Foreign exchange Financial costs New Other changes Balance as of ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Short-term loans 15,760,182 287,759,113 (168,360,646) (115,801,821) 3,596,646 71,502,040 24,229,123 9,525,539 149,113,811 — 134,688,221 408,415,562 Long-term loans 769,169,018 1,278,023,491 (674,473,125) — 603,550,366 649,261,789 2,541,108 261,981,228 — — (145,946,009) 2,140,557,500 Lease liabilities (Nota 21) 14,608,915 — (1,889,685) (739,070) (2,628,755) — — 1,757,219 739,070 — — 14,476,449 Assets held to cover liabilities arising from financing activities (50,828,136) — — — — (5,495,214) 21,619,259 (8,509,465) — — — (43,213,556) Total 748,709,979 1,565,782,604 (844,723,456) (116,540,891) 604,518,257 715,268,615 48,389,490 264,754,521 149,852,881 — (11,257,788) 2,520,235,955 (1) It relates to accrual of interest .

Other Financial Assets

Other Financial Assets	12 Months Ended
	Dec. 31, 2020
OTHER FINANCIAL ASSETS
Other Financial Assets	7 . OTHER FINANCIAL ASSETS The detail of other financial assets as of December 31, 2020 and 2019 is as follows: Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Other Financial Assets ThCh$ ThCh$ ThCh$ ThCh$ Financial assets at fair value with changes in other comprehensive income 127,854 127,854 2,326,480 2,349,223 Financial assets Financial assets measured at amortized cost 808,692 860,425 — — Hedging derivatives 1,000,964 322,316 16,422,737 4,871,397 Non-Hedging derivatives 1,414,894 — 1,911,233 — Total 3,352,404 1,310,595 20,660,450 7,220,620

Other Non-financial Assets and

Other Non-financial Assets and Liabilities	12 Months Ended
	Dec. 31, 2020
OTHER NON-FINANCIAL ASSETS AND LIABILITIES
Other Non-financial Assets and Liabilities	8 . OTHER NON-FINANCIAL ASSETS AND LIABILITIES a) Other non-financial assets The detail of other non-financial assets as of December 31, 2020 and 2019, is as follows: Currrent Non-Current Other non-financial assets 12-31-2020 12-31-2019 12-31-2020 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ VAT Tax Credit and Other Taxes 8,575,080 19,497,233 46,638,860 19,799,224 Prepaid expenses 9,991,447 12,329,859 — — Guarantee deposit — — 128,724 1,879,019 PPM water rights — — 7,910,531 7,670,114 Spare parts with a consumption schedule of more than 12 months — — 7,543,841 5,773,991 Other 1,235,046 2,807,471 3,565,259 2,927,836 Total 19,801,573 34,634,563 65,787,215 38,050,184 b) Other non-financial liabilities The detail of other non-financial liabilities as of December 31, 2020 and 2019, is as follows: Currrent Non-Current Other non-financial liabilities 12-31-2020 12-31-2019 12-31-2020 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ VAT Credit and Other Taxes 40,117,141 31,616,664 — — Reimbursable financial contributions — — 1,177,968 1,302,759 Splices 3,860,816 9,283,177 — Transfer of networks 1,473,486 2,845,708 — Products and services 954,609 1,088,498 — Other 760,529 674,336 — Total 47,166,581 45,508,383 1,177,968 1,302,759

Trade and Other Receivables

Trade and Other Receivables	12 Months Ended
	Dec. 31, 2020
TRADE AND OTHER RECEIVABLES.
Trade and Other Receivables	9. TRADE AND OTHER RECEIVABLES a) The detail of trade and other receivables as of December 31, 2020 and 2019, is as follows: As of December 31, 2020 2019 Trade and Other Receivables, Gross Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, gross 619,626,310 445,129,898 566,919,977 313,574,385 Trade receivables, gross 531,179,316 377,160,616 500,040,783 191,966,929 Accounts receivable from finance leases, gross 8,556,146 62,602,528 13,158,795 117,873,340 Other receivables, gross 79,890,848 5,366,754 53,720,399 3,734,116 As of December 31, 2020 2019 Trade and Other Receivables, Net Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, net 554,886,639 445,016,566 511,455,330 313,574,385 Trade receivables, net 481,442,020 377,047,284 456,552,682 191,966,929 Accounts receivable from finance leases, net 4,072,738 62,602,528 11,121,878 117,873,340 Other receivables, net (1) 69,371,881 5,366,754 43,780,770 3,734,116 (1) The detail of other accounts receivable is as follows: As of December 31, 2020 2019 Other receivables, net Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Recoveries from insurance companies 20,325 — 2,011,406 — Accounts receivable from employees 13,256,252 4,442,878 10,017,453 3,308,861 Advances to suppliers and creditors 43,102,611 909,661 19,864,669 415,787 Compensation for central claims Tarapacá and Bocamina 1 5,360,345 — — — Others 7,632,348 14,215 11,887,242 9,468 Total 69,371,881 5,366,754 43,780,770 3,734,116 a.1) Increase in trade and other receivables: The main increase as of December 31, 2020, is observed in the long-term accounts receivable, which increased by ThCh$185,193,687 compared to the end of 2019. This variation is fundamentally explained by the following. On November 2, 2019, the Ministry of Energy published Law No. 21,185, which creates a Transitory Mechanism to Stabilize Electricity Prices for Customers Subject to Rate Regulation. By this Law, between July 1, 2019 and December 31, 2020, the prices to be transferred to regulated customers are the price levels defined for the first half of 2019 (Decree 20T/2018) and will be referred to as “Stabilized Price to Regulated Customers” (PEC). Between January 1, 2021 and up to the end of the stabilization mechanism, prices shall be those defined in the semiannual price-setting processes mentioned in article 158 of the Electricity Law, but may not be higher than the adjusted PEC according to the Consumer Price Index from January 1, 2021, based on the same date (adjusted PEC). The differences produced between the billing period while applying the stabilization mechanism, and the theoretical billing, considering the price that would have been applied according to the conditions of the respective contracts with the Electricity Distribution companies, will generate an account receivable in favor of the Electricity Generation companies, up to a maximum of US$1,350 million until 2023. All billing differences will be recorded in USD and will not accrue financial remuneration until December 31, 2025. The balance must be recovered by December 31, 2027 at the latest. The application of this Law generates a greater delay in the billing and collection of sales generated in the Company´s Electricity Generation segment, with the corresponding financial and accounting impact this situation generates. In the case of the Company´s Electricity Distribution segment, the financial and accounting effects are neutralized (pass-through principle). On September 14, 2020, the National Energy Commission published Exempt Resolution No. 340, which modified the technical provisions for the implementation of the Rate Stabilization Law. This Resolution clarified that the payment to each supplier “must be allocated to the payment of Balances chronologically, paying from the oldest to the newest Balances,” and not on a weighted basis over the total balances pending payment, as the industry practice had been until that date. In addition, this Resolution established that the payment of Balances shall be performed using the USD exchange rate observed on the business day following publication of the Coordinator's Balance Payment Chart, instead of the average USD exchange rate during the billing month, as established up to that moment. As a result of the abovementioned situations, and after eliminating transactions between related companies, the accounting effects recorded by the Group are summarized as follows: - - Lower energy sales revenue of ThCh$10,864,866 as of December 31, 2020 (ThCh$3,782,091 as of December 31, 2019). - Lower energy purchase costs of ThCh$3,515,292 (ThCh$1,181,163 as of December 31, 2019). - Higher finance income of ThCh$15,328,829 as of December 31, 2020, of which ThCh$11,887,346 corresponds to the effect of application of Exempt Resolution No. 340 (higher finance income of ThCh$5,225,739 as of December 31, 2019), see Note 34. - Higher finance costs of ThCh$(4,518,268) as of December 31, 2020, of which ThCh$3,206,420 corresponds to the effect of application of Exempt Resolution No. 340 (higher finance costs of ThCh$ 19,062,333 as of December 31, 2019), see Note 34. - Net loss from foreign currency translation of ThCh$25,260,383 as of December 31, 2020 (ThCh$3,835,024 as of December 31, 2019), due to the dollarization of unbilled accounts receivable, see Note 34. The aforementioned trade and non-trade concepts, while included in the model to determine impairment losses (see Note 3.g.3), have no greater impact at the close of December 2020 and 2019, due to the nature of these items: invoices not yet issued, invoices not yet due, or past due invoices within normal business ranges. a.2) Transfer of collection rights from Distribution Segment customers On December 28, 2020, Enel Distribución Chile and Inter-American Investment Corporation entered into a framework agreement by which Enel Distribución Chile, from time to time, may transfer the collection rights it owns and derived from part of its trade receivables from the sale of energy made to certain customer segments. Within this context, on December 30, 2020, Enel Distribución Chile made the first transfer of collection rights in the amount of ThCh$44,797,737 and, following the accounting criteria described in Note 3.g.6), the inflow of cash obtained in the transaction implied the derecognition of accounts receivable and the recognition of a finance expense in the amount of ThCh$533,615. As indicated above, Enel Distribución Chile can continue to make new transfers of collection rights from time to time. The completion of additional transfers of collection rights will depend on Management’s analysis and ongoing evaluation of the cash needs and market conditions. a.3) Others There are no restrictions on the disposal of these types of accounts receivable in a significant amount. The Group has no customers whose sales represent 10% or more of its revenue for the years ended December 31, 2020 and 2019. For amounts, terms and conditions related to accounts receivable due from related parties, refer to Note 10.1 a) Financial lease receivables As of December 31, 2020 and 2019, future collections on financial lease receivables are the following. 12-31-2020 12-31-2019 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 8,560,073 4,487,336 4,072,737 15,313,622 4,191,744 11,121,878 From one to two years 10,294,652 1,735,758 8,558,894 17,350,359 3,919,937 13,430,422 From two to three years 10,266,956 1,692,482 8,574,474 17,350,359 3,630,136 13,720,223 From three to four years 10,226,534 1,309,548 8,916,986 17,316,251 3,115,800 14,200,451 From four to five years 10,118,045 472,760 9,645,285 17,271,708 2,246,896 15,024,812 More than five years 27,488,134 581,244 26,906,890 65,391,395 3,893,963 61,497,432 Total 76,954,394 10,279,128 66,675,266 149,993,694 20,998,476 128,995,218 The amounts correspond to the development of public lighting projects, mainly for municipalities, and the fleet of electric buses for public transportation with their respective charging stations. The decrease of ThCh$62,319,952 in accounts payable compared to December 31, 2019, is mainly due to the sale of electric bus lease agreements on August 19, 2020 by the Company’s subsidiary Enel X Chile to its associate Enel AMPCl Ebus Chile SpA. As of December 31, 2020, the profit from the sale of finance leases was ThCh$5,090,399, (ThCh$5,366,871 and ThCh$3,345,786 as of December 31, 2019 and 2018, respectively). Additionally, the finance income from lease receivables amounted to ThCh$1,562,017, (ThCh$1,446,779 and ThCh$1,182,229 as of December 31, 2019 and 2018, respectively). b) As of December 31, 2020 and 2019, the analysis of past-due, unpaid trade receivables, but for which no impairment losses have been recorded, is detailed as follows: As of December 31, 2020 2019 Trade accounts receivables due and unpaid, but of which no impairment losses have been recorded ThCh$ ThCh$ Less than three months 52,948,476 43,661,270 Between three and six months 13,513,388 6,462,265 Between six and twelve months 8,311,729 5,162,189 More than twelve months 34,485,893 10,668,714 Total 109,259,486 65,954,438 c) The movement of impairment loss of trade receivables, determined according to Note 3.g.3, is detailed as follows: Current and Non-current Trade accounts receivables due and unpaid, with impairment losses ThCh$ Balance as of January 1, 2019 49,479,880 Increases (decreases) for the year 10,047,000 Amounts written off (4,067,201) Increases (decreases) in foreign currency translation differences 4,968 Balance at December 31, 2019 55,464,647 Increases (decreases) for the year (*) 15,167,707 Amounts written off (5,709,371) Increases (decreases) in foreign currency translation differences (69,980) Balance at December 31, 2020 64,853,003 (*) As of December 31, 2020, the impairment losses of trade receivables amounted to ThCh$15,167,707, representing a 51% increase over the loss of ThCh$10,047,000 recorded at December 31, 2019. This increase is mainly due to the effects of COVID-19 on the economy, a deterioration in the payment capacity of a segment of customers, a prolonged lockdown with its effects on different commercial and industrial activities, and the inability to disconnect residential customers pursuant to Law No. 21,249, the Law on Utility Services, whose terms were extended by Law No. 21,301, among other factors. See more information in Note 4.b.iv “Sector Regulation – and Electricity System Operations – Regulatory Matters,” Note 31 “Depreciation, Amortization and Impairment Loss of Property, Plant and Financial Assets Under IFRS 9,” and Note 36.5 “COVID -19 Contingency.” Write-offs of doubtful accounts The write-off of doubtful accounts is performed once all collections proceedings have been exhausted, including judicial proceedings, and proof of the debtors’ insolvency has been obtained. In the case of the Company’s Generation Business, the process normally considers at least one year of proceedings. In the Company’s Distribution Business, the process takes less than 24 months. Over all, the risk of uncollectability and, therefore, the write-off of the Company’s customers, is limited. (See Notes 3.g.3 and 22.5). d) Additional Information: - Additional statistical information required by CMF Circular No. 715, dated February 3, 2012, (XBRL taxonomy). See Appendix 2. - Complementary information on trade receivables, see Appendix 2.1.

Balances and Transactions With

Balances and Transactions With Related Parties	12 Months Ended
	Dec. 31, 2020
BALANCES AND TRANSACTIONS WITH RELATED PARTIES
Balances and Transactions With Related Parties	10. BALANCES AND TRANSACTIONS WITH RELATED PARTIES Related party transactions are performed at current market conditions. Transactions between companies comprising the Group have been eliminated in the consolidation process and are not disclosed in this Note. As of the date of these consolidated financial statements, there are no allowances for doubtful accounts between related entities. The controlling company of Enel Chile is the Italian company Enel S.p.A. Enel Chile S.A. provides administrative services to its subsidiaries, through a centralized cash contract used to finance cash deficits or consolidate cash surpluses. These accounts may have a debtor or creditor balance and are prepayable, short-term accounts with a variable interest rate that represents market conditions. To reflect these market conditions, the interest rates are reviewed periodically through an update procedure approved by the Boards of Directors of the respective companies. 10.1 Balances and transactions with related parties The balances of accounts receivable and payable as of December 31, 2020 and 2019 are as follows: a) Receivables from related parties Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Taxpayer ID N° Company Country Relationship Currency Description of transaction Term of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent EUR Other services Less than 90 days 31,032 26,979 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent EUR Other services Less than 90 days 266,732 146,061 - - Foreign Enel Green Power Morocco Italy Common Immediate Parent EUR Other services Less than 90 days 252,803 94,340 - - 76.418.940-K GNL Chile S.A. Italy Associated US$ Advance Gas Purchase Less than 90 days 20,067,363 31,025,024 48,358,915 34,407,142 76.418.940-K GNL Chile S.A. Chile Associated US$ Dividends Less than 90 days 616,697 - - - Foreign Endesa Generación Spain Common Immediate Parent EUR Engineering services Less than 90 days 42,794 45,069 - - Foreign Enel Italy SrL. Italy Common Immediate Parent EUR Other services Less than 90 days 534,991 403,854 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Other services Less than 90 days 216,185 120,276 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent US$ Gas sales Less than 90 days - 16,880,527 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Commodity derivatives Less than 90 days 22,048,245 2,962,387 - - Foreign Enel S.p.A. Italy Parent EUR Other services Less than 90 days 533,309 467,393 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent BRL Other services Less than 90 days - 705,954 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent US$ Other services Less than 90 days 866,928 - - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent US$ Engineering services Less than 90 days 198,066 473,527 - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent US$ Other services Less than 90 days 164,018 105,320 - - Foreign Codensa S.A. Colombia Common Immediate Parent COP Computer Services Less than 90 days - 833,336 - - Foreign Codensa S.A. Colombia Common Immediate Parent EUR Computer Services Less than 90 days 322,872 - - - Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 74,930 26,237 - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent CLP Engineering services Less than 90 days 1,064,232 725,163 - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent US$ Engineering services Less than 90 days 162,252 - - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 404,354 455,544 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CLP Computer Services Less than 90 days 410,946 991,564 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CLP Other services Less than 90 days 1,007,511 1,859,205 - - Foreign Enel Green Power Colombia SAS Colombia Common Immediate Parent US$ Engineering services Less than 90 days 1,342,341 - - - Foreign Enel Green Power Colombia SAS Colombia Common Immediate Parent US$ Other services Less than 90 days - 489,301 - - Foreign Enel Generación Piura S.A. Peru Common Immediate Parent US$ Engineering services Less than 90 days 55,897 60,670 - - Foreign Enel Innovation Hubs Srl Italy Common Immediate Parent EUR Computer Services Less than 90 days 25,362 - - - Foreign Chinango S.A.C. Peru Common Immediate Parent US$ Engineering services Less than 90 days 70,925 - - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Engineering services Less than 90 days 170,756 1,131,635 - - Foreign Enel Green Power Spa Italy Common Immediate Parent US$ Engineering services Less than 90 days 395,683 - - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Other services Less than 90 days 2,088 267,422 - - Foreign Enel Green Power Spa Italy Common Immediate Parent US$ Other services Less than 90 days 653,975 1,509,373 - - Foreign Sociedad Portuaria Central Cartagena S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days - 149,525 - - 96.971.330-6 Geotérmica del Norte Chile Common Immediate Parent CH$ Venta de Energía Less than 90 days - - - - Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent US$ Computer Services Less than 90 days 657,232 603,171 - - Foreign Enel Green Power Peru Peru Common Immediate Parent US$ Engineering services Less than 90 days 405,030 302,697 - - Foreign Enel Green Power Peru Peru Common Immediate Parent US$ Other services Less than 90 days 186,734 1,463,242 - - Foreign Energía Nueva Energía Limpia México S.R.L Mexico Common Immediate Parent US$ Other services Less than 90 days 34,843 108,327 - - Foreign Proyectos y Soluciones Renovables S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days 96,267 60,717 - - Foreign Enel Generacion Costanera S.A. Argentina Common Immediate Parent US$ Engineering services Less than 90 days 155,722 34,771 - - Foreign Enel Generacion El Chocón S.A. Peru Common Immediate Parent US$ Engineering services Less than 90 days 11,954 12,589 - - Foreign Enel Green Power Brasil Participacoes LTDA. Brazil Common Immediate Parent US$ Engineering services Less than 90 days 6,714 51,895 - - Foreign Enel Green Power Brasil Participacoes LTDA. Brazil Common Immediate Parent US$ Other services Less than 90 days 200,977 75,984 - - Foreign Enel Power Argentina Argentina Common Immediate Parent US$ Other services Less than 90 days 269,280 284,876 - - Foreign Energetica Monzon S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days - 461,677 Foreign Energetica Monzon S.A.C. Peru Common Immediate Parent US$ Engineering services Less than 90 days 653,567 - - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent US$ Other services Less than 90 days - 385,716 - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent CLP Other services Less than 90 days - 110,699 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent US$ Other services Less than 90 days - 141,708 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent CLP Other services Less than 90 days - 7,381 - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent US$ Other services Less than 90 days 234,834 168,691 - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent US$ Computer Services Less than 90 days 1,080,101 1,136,784 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CLP Other services Less than 90 days 623,843 341,200 - - Foreign Enel X S.R.L. Italy Common Immediate Parent EUR Other services Less than 90 days 29,990 26,954 - - Foreign Enel Produzione Italy Common Immediate Parent EUR Other services Less than 90 days 60,644 13,781 - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Technical services Less than 90 days 753,544 273,003 - - Foreign Enel North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 192,582 - - - Foreign Enel X North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 86,685 92,730 - - Foreign Parque Amistad Ii Sa De Cv Mexico Common Immediate Parent US$ Other services Less than 90 days - 50,264 - - Foreign Parque Amistad Iv Sa De Cv Mexico Common Immediate Parent US$ Other services Less than 90 days - 17,590 - - Foreign Renovables de Guatemala S.A. Guatemala Common Immediate Parent US$ Engineering services Less than 90 days 1,089 - - - Foreign Enel Trading Argentina S.R.L. Argentina Common Immediate Parent EUR Computer Services Less than 90 days 173,263 - - - 77.157.781-4 Enel AMPCI Ts1 Holdings SpA Chile Associated US$ Other services Less than 90 days 8,176 - - - 77.157.783-0 Enel AMPCI Ts1 SpA Chile Associated US$ Other services Less than 90 days 41,591 - - - 77.157.779-2 Enel AMPCI Ebus Chile SpA Chile Associated US$ Other services Less than 90 days 8,176 - - - Total 57,976,125 68,182,133 48,358,915 34,407,142 b) Accounts payable to related parties Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Taxpayer ID N° Company Country Relationship Currency Description of transaction Terms of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent EUR Other services Less than 90 days 159,940 159,940 - - Foreign Enel Trading Argentina S.R.L. Argentina Common Immediate Parent US$ Other services Less than 90 days 94,838 86,189 - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent COP Other services Less than 90 days 4,576 4,723 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CLP Other services Less than 90 days 2,285,642 1,909,747 - - Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 2,185 2,291 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent EUR Other services Less than 90 days 651,662 57,324 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent EUR Technical services Less than 90 days 5,397,360 1,984,129 - - 76.418.940-K GNL Chile S.A. Chile Associated US$ Gas Purchase Less than 90 days 14,650,079 4,980,936 - 2,497,660 Foreign Endesa Generación Spain Common Immediate Parent EUR Engineering services Less than 90 days 190,879 190,879 - - Foreign Endesa Generación Spain Common Immediate Parent EUR Other services Less than 90 days 25,643 25,643 - - Foreign Enel Iberia SRL Spain Common Immediate Parent EUR Other services Less than 90 days 891,821 883,576 - - Foreign E-Distribuzione Spa Italy Common Immediate Parent EUR Other services Less than 90 days - 49,488 - - Foreign Enel Produzione Italy Common Immediate Parent EUR Other services Less than 90 days 1,395,436 3,249,960 - - Foreign Enel Produzione Italy Common Immediate Parent EUR Engineering services Less than 90 days 1,999,721 2,793,150 - - Foreign Enel Energía Italy Common Immediate Parent EUR Other services Less than 90 days 478,207 452,289 - - 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Joint Arrangement CLP Tolls Less than 90 days 13,887 13,887 - - Foreign Enel Green Power Spain SL Spain Common Immediate Parent EUR Other services Less than 90 days 403,225 352,233 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Other services Less than 90 days 558,964 1,099,133 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent US$ Commodity derivatives Less than 90 days 2,405,919 9,295,836 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Technical services Less than 90 days 5,042,033 2,857,244 - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Technical services Less than 90 days 1,154,817 - - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Computer Services Less than 90 days 11,719,059 - - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Engineering services Less than 90 days 551,776 - - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Other services Less than 90 days 640,692 - - - Foreign Enel S.p.A. Italy Parent CLP Dividends Less than 90 days - 55,018,871 - - Foreign Enel S.p.A. Italy Parent EUR Technical services Less than 90 days 7,310,421 6,982,284 - - Foreign Enel S.p.A. Italy Parent EUR Computer Services Less than 90 days 263,443 - - - Foreign Enel S.p.A. Italy Parent EUR Engineering services Less than 90 days 1,381,313 - - - Foreign Enel S.p.A. Italy Parent EUR Other services Less than 90 days 2,516,113 2,965,604 - - Foreign Enel Italy SrL Italy Common Immediate Parent EUR Technical services Less than 90 days - 6,438,614 - - Foreign Enel Italy SrL Italy Common Immediate Parent EUR Computer Services Less than 90 days 253,605 - - - Foreign Enel Italy SrL Italy Common Immediate Parent EUR Other services Less than 90 days 676,267 9,115,709 - - Foreign Enel Italy IT Italy Common Immediate Parent EUR Engineering services Less than 90 days 243,460 - - - Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 35,616 17,950 - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Technical services Less than 90 days 4,782,053 3,017,847 - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Computer Services Less than 90 days 2,125,349 - - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Engineering services Less than 90 days 17,720 - - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Other services Less than 90 days 947,100 681,544 - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Technical services Less than 90 days 21,206,647 19,758,903 - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Engineering services Less than 90 days 17,975,839 12,594,833 - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Other services Less than 90 days 9,249,143 10,666,792 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 315,697 248,051 - - Foreign Enel Finance International NV (*) Holland Common Immediate Parent US$ Loan payable Less than 90 days 3,444,366 - Foreign Enel Finance International NV Holland Common Immediate Parent US$ Other services Less than 90 days - 134,278 - - Foreign Enel Green Power Italy Italy Common Immediate Parent CLP Other services Less than 90 days 459,992 - - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CLP Other services Less than 90 days 345,708 344,877 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent EUR Engineering services Less than 90 days 871,748 - - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent US$ Other services Less than 90 days 42,549 107,037 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent US$ Engineering services Less than 90 days 60,957 - - - 76.364.085-K Energía Marina S.P.A Chile Associated CLP Other services Less than 90 days - 2,357 - - Foreign Enel X S.R.L. Italy Common Immediate Parent EUR Other services Less than 90 days 130,664 198,815 - - Foreign Enel X S.R.L. Italy Common Immediate Parent EUR Technical services Less than 90 days 4,225,269 147,488 - - Foreign Cesi S.p.A. Italy Common Immediate Parent EUR Engineering services Less than 90 days 247,773 890,343 - - Foreign Tecnatom SA Italy Common Immediate Parent EUR Engineering services Less than 90 days 73,842 29,093 - - Foreign Enel X Brasil Gerenciamento de Energia Ltda Brazil Common Immediate Parent US$ Other services Less than 90 days 360 - - - Foreign Enel Distribución Sao Paulo Brazil Common Immediate Parent US$ Other services Less than 90 days 132,587 - - - Total 159,809,887 (*) See letter d below. c) Significant transactions and effects on profit or loss As of December 31, 2020, 2019 and 2018 the significant transactions with related companies that are not consolidated, are as follows: 6 For the years ended December 31, 2020 2019 2018 Taxpayer ID N° Company Country Relationship Description of transaction ThCh$ ThCh$ ThCh$ 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent Provision of administration and other services 5,021,265 4,748,244 5,071,453 76.418.940-K GNL Chile S.A. Chile Associated Gas consumption (164,410,577) (99,801,403) (131,521,989) 96.524.140-K Empresa Eléctrica Panguipulli S.A. Chile Common Immediate Parent Energy Purchases - - (1,954,523) 76.052.206-6 Parque Eolico Valle de los Vientos SpA Chile Common Immediate Parent Energy Purchases - - (3,349,525) Foreign Enel X S.R.L. Italy Common Immediate Parent Technical services (3,435,918) - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent Engineering services (5,097,105) - - Foreign Enel S.p.A. Italy Parent Technical services (3,800,471) (4,110,257) - 76.412.562-2 Enel Green Power del Sur SPA Chile Common Immediate Parent Energy Purchases - - (30,205,373) 76.179.024-2 Parque Eolico Tal Tal SpA Chile Common Immediate Parent Energy Purchases - - (4,448,833) Foreign Enel Global Trading SpA. Italy Common Immediate Parent Commodity derivatives (37,771,702) (12,118,800) 7,584,772 Foreign Enel Global Trading SpA. Italy Common Immediate Parent Technical services (2,183,183) (1,634,832) (1,213,116) Foreign Enel Global Trading SpA. Italy Common Immediate Parent Gas sales - 58,352,346 34,701,425 Foreign Enel Finance International NV Holland Common Immediate Parent Financial expenses (35,079,947) (31,328,749) (23,253,535) Foreign Enel Italy S.r.l. Italy Common Immediate Parent Computer Services - (2,699,915) (1,481,631) Foreign Enel Italy S.r.l. Italy Common Immediate Parent Technical services - (3,139,990) (2,629,893) Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Technical services (3,172,872) - (1,845,425) Foreign Enel Green Power SpA Italy Common Immediate Parent Engineering services (7,263,535) - - Foreign Enel Green Power SpA Italy Common Immediate Parent Technical services (4,674,437) (3,898,762) (4,257,363) 76.802.924-3 Energía y Servicios South America SpA Chile Common Immediate Parent Computer Services (2,128,624) - - d) Significant transactions i) Enel Chile · On December 21, 2018, Enel Finance International NV granted a revolving credit facility in USD to Enel Chile S.A. for a committed amount of up to US$400 million, with a variable LIBOR 6M interest rate, plus an annual margin of 1.00% with the payment of interest every six months and a maturity date of December 21, 2022. The facility allowed Enel Chile S.A. to make indefinite withdrawals up to the committed amount and until June 21, 2019, defined as the availability period, during which Enel Chile S.A. must pay an annual availability commission equivalent to 35% of the margin over the non-withdrawn amount. On June 3 and 18, 2019, Enel Chile S.A. withdrew the total amount of the line of credit. The credit obtained by Enel Chile S.A. is unsecured, corresponds to a bullet maturity loan, and the principal and interest can be repaid early, in part or in full, without any penalty other than the “breakage costs,” by sending to Enel Finance International NV a request for early repayment, completed at least 10 (ten) days prior to the prepayment date. Enel Chile S.A. will not pay any “breakage costs” if the prepayment date falls on an interest payment date. The debt balance as of December 31, 2020 was US$400 million, equivalent to ThCh$284,380,000, while as of December 31, 2019 it was US$400 million, equivalent to ThCh$299,496,000. As of December 31, 2020, this debt has no accrued interest due to the payment of interest on December 31, 2020. · In June 2019, Enel Chile S.A. entered into a revolving credit facility with Enel Finance International N.V. in USD for a total of US$50 million, at a LIBOR 1M, 3M or 6M variable rate plus a margin of 0.90%, with monthly, quarterly or semiannual interest payments, and a maturity date of December 24, 2024. During the availability period, Enel Chile S.A. will pay an annual availability commission equivalent to 0.25% the non-withdrawn amount. This revolving credit facility is unsecured, and the principal and accumulated interest or other cost subject to agreement may be repaid early, in part or in full. Enel Chile S.A. may require renewal of a withdrawal, by sending a letter at least 5 (five) business days prior to the due date of the obligation. As of December 31, 2020, this line has not been used. · On January 3, 2020, Enel Finance International NV granted a loan in USD to Enel Chile S.A. for up to US$200 million, with a fixed interest rate of 2.60%, with the payment of interest every six months and a maturity date of July 3, 2023. The loan obtained by Enel Chile S.A. is unsecured, corresponds to a bullet loan, and the principal and interest can be repaid early, in part or in full, without any penalty other than the “breakage costs,” by sending to Enel Finance International NV a request for early repayment, at least 10 (ten) days prior to the prepayment date. Enel Chile S.A. will not pay any “breakage costs” if the prepayment date falls on an interest payment date. The debt balance as of December 31, 2020 was US$200 million, equivalent to ThCh$142,190,000. As of December 31, 2020, this debt has no accrued interest due to the payment of interest on December 31, 2020. · On March 11, 2020, Enel Finance International NV granted a loan in USD to Enel Chile S.A. for up to US$400 million, with a fixed interest rate of 3.30%, with the payment of interest every six months and a maturity date of March 11, 2030. The loan obtained by Enel Chile S.A. is unsecured, corresponds to a bullet loan, and the principal and interest can be repaid early, in part or in full, without penalty any other than the “breakage costs,” by sending to Enel Finance International NV a request for early repayment at least 10 (ten) days prior to the prepayment date. Enel Chile S.A. must not pay any “breakage costs” if the prepayment date falls on an interest payment date. The debt balance as of December 31, 2020 was US$400 million, equivalent to ThCh$284,380,000. The accrued interest as of December 31, 2020 was ThCh$2,893,567. · On June 15, 2020, Enel Chile S.A. entered into a revolving credit facility with Enel Finance International N.V. in USD for a total of US$290 million, at a LIBOR 1M, 3M or 6M variable rate plus a margin of 1.40%, with monthly, quarterly or semiannual interest payments, and a maturity date of June 15, 2021. During the availability period, Enel Chile S.A. will pay an annual availability commission equivalent to 0.35% the margin over the non-withdrawn amount. This revolving credit facility is unsecured, and the principal and accumulated interest or other cost subject to agreement may be repaid early, in part or in full. Enel Chile S.A. may require renewal of a withdrawal, by sending a letter at least 5 (five) business days prior to the due date of the obligation. As of December 31, 2020, this line has not been used. ii) EGP Chile Group · On December 31, 2015, Enel Green Power International B.V. (currently Enel Finance International N.V.) granted to Parque Eólico Renaico SpA (later Enel Green Power del Sur SpA and currently Enel Green Power Chile S.A.) a loan in USD for a committed amount of up to US$650 million, at a variable LIBOR 6M interest rate, plus an annual margin of 4.94% , with the payment of interest every six months and a maturity date of December 31, 2027. The loan allowed Enel Green Power del Sur SpA to make indefinite withdrawals up to the committed amount until December 31, 2017, defined as the availability period, during which Enel Green Power Chile S.A. paid an annual availability fee equivalent to 35% of the margin over the non-withdrawn amount. On June 28, 2019, the annual margin was reduced to 1.40%. Additionally, on September 30, 2019, Enel Green Power Chile S.A. and :Enel Finance International N.V. renewed the agreement to modify the Loan Agreement, under the following terms: (i) modify the interest rate, from variable to fixed, establishing an annual rate of 2.82%, with payment of interest every six months; and (ii) modify the semiannual payment schedule, starting June 30, 2024, maintaining voluntary prepayment with breakage costs (modifying the definition of breakage cost) and the maturity date of December 31, 2027. The debt balance as of December 31, 2020 was US$644 million equivalent to ThCh$458,115,848 as of December 31, 2019,(US$644 million, equivalent to ThCh$482,466,643. This is a bullet maturity loan secured by Enel Chile S.A. As of December 31, 2020, this debt has no accrued interest due to the payment of interest on December 31, 2020. 10.2 Board of directors and key management personnel Enel Chile is managed by a Board of Directors which consists of seven members. Each director serves for a three-year term after which they can be reelected. The current Board of Directors was elected at the Ordinary Shareholders’ Meeting held on April 25, 2018. In the Board of Directors Meeting held on the same day, the current Board Chairman and Secretary were appointed. a) Accounts receivable and payable and other transactions - Accounts receivable and payable There are no outstanding balances receivable and payable between the Company and its Directors and Group Management. - Other transactions There are no transactions other than remuneration between the Company and its Directors and Group Management. b) Compensation for directors In accordance with Article 33 of Law No.18.046 governing stock corporations, the compensation of Directors is established each year at the General Shareholders Meeting of Enel Chile. A monthly remuneration, one part a fixed monthly fee and another part dependent on meetings attended, shall also be paid to each member of the Board of Directors. This remuneration is broken down as follows: - UF 216 as a fixed monthly fee in any event; and - UF 79.2 as a per diem for each Board meeting attended with a maximum of 16 sessions in total whether ordinary or extraordinary, within the corresponding exercise. According to the provisions of the bylaws, the remuneration of the Chairman of the Board will be twice that of a Director. In the event a Director of Enel Chile S.A participates in more than one Board of Directors of domestic or foreign subsidiaries and / or affiliated, or acts as director or consultant for other domestic or foreign companies or legal entities in which Enel Chile S.A. has direct or indirect interest, he/she may receive remuneration only in one of said Board of Directors or Management Boards. The executive officers of Enel Chile S.A. and/or its domestic or foreign subsidiaries or affiliates will not receive remunerations or per diem allowances if acting as directors in any of Enel Chile S.A.’s domestic or foreign subsidiaries, affiliates or investee in any way. However, said remunerations or per diem allowances may be received by the executive officers as long as they are previously and expressly authorized as advances of their variable portion of remuneration by the corresponding companies with which they are associated through an employment contract. Directors’ Committee: Each member will be paid a monthly compensation, one part a fixed monthly fee and another part dependent on meetings attended. This compensation is broken down as follows: - UF 72 as a fixed monthly fee, in any event, and - UF 26.4 as a per diem for each Board meeting attended, all with a maximum of 16 meetings in total, whether ordinary or extraordinary, within the corresponding fiscal year. The following tables show details of the compensation paid to the members of the Board of Directors of the Company for the years ended December 31, 2020, 2019 and 2018: December 31, 2020 Enel Chile Board Board of subsidiaries Directors' Committee Taxpayer ID No. Name Position Period in position ThCh$ ThCh$ ThCh$ 4.975.992-4 Herman Chadwick Piñera Chairman January - December 2020 207,918 — — Foreign Giulio Fazio Director January - December 2020 — — — 4.461.192-9 Fernan Gazmuri Plaza Director January - December 2020 103,959 — 34,653 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2020 103,959 — 34,653 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2020 103,959 — 34,653 Foreign Daniele Caprini Director January - December 2020 — — — Foreign Salvatore Bernabei Director January - December 2020 — — — Total 519,795 — 103,959 December 31, 2019 Enel Chile Board Board of subsidiaries Directors' Committee Taxpayer ID No. Name Position Period in position ThCh$ ThCh$ ThCh$ 4.975.992-4 Herman Chadwick Piñera Chairman January - December 2019 206,350 — — Foreign Giulio Fazio Director January - December 2019 — — — 4.461.192-9 Fernan Gazmuri Plaza Director January - December 2019 103,175 — 33,648 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2019 103,175 — 33,648 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2019 103,175 — 33,648 Foreign Daniele Caprini Director January - December 2019 — — — Foreign Salvatore Bernabei Director January - December 2019 — — — Total 515,875 — 100,944 December 31, 2018 Enel Chile Board Board of subsidiaries Directors' Committee Taxpayer ID No. Name Position Period in position ThCh$ ThCh$ ThCh$ 4.975.992-4 Hermán Chadwick Piñera Chairman January - December 2018 181,789 — — Foreigner Giulio Fazio Director January - December 2018 — — — 4.461.192-9 Fernán Gazmuri Plaza Director January - December 2018 90,894 — 31,018 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2018 90,894 — 31,018 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2018 90,894 — 31,018 Foreigner Vicenzo Ranieri Director April - December 2018 — — — Foreigner Salvatore Bernabei Director January - December 2018 — — — Total 454,471 — 93,054 c) Guarantees given by the Company in favor of the directors No guarantees have been given to the directors. 10.3 Compensation of key management personnel Enel Chile's key personnel as of December 31, 2020 is comprised of the following people: Key Management Personnel Taxpayer ID No. Name Position Foreign Paolo Palloti Chief Executive Officer Foreign Giuseppe Turchiarelli (1) Administration, Finance and Control Officer 13.903.626-3 Liliana Schnaidt Hagedorn Human Resources and Organization Manager 6.973.465-0 Domingo Valdés Prieto General Counsel and Secretary to the Board Foreign Eugenio Belinchon Gueto (2) Internal Audit Manager (1) (2) The following executives were part of the Company's key staff until September 24, 2019. - Mónica De Martino, Regulation Manager - Antonella Pellegrini, Sustainability and Community Relations Manager - Claudia Navarrete Campos, Planning and Control Manager - Alison Dunsmore M., Service Manager - Pedro Urzúa Frei, Institutional Relations Manager - Raúl Puentes Barrera, Provisioning Manager - Andrés Pinto Bontá, Security Manager - Ángel Barrios Romo, Digital Solutions Manager 10.4 Incentive plans for key management personnel Enel Chile has implemented an annual bonus plan for its executives based on meeting company-wide objectives and on the level of their individual contribution in achieving the overall goals of the Group. The plan provides for a range of bonus amounts according to seniority level. The bonuses paid to the executives consist of a certain number of monthly gross remunerations. Compensation of key management personnel is the following: December 31, 2020 December 31, 2019 December 31, 2018 ThCh$ ThCh$ ThCh$ Remuneration 2,133,063 2,357,252 2,959,019 Short-term benefits for employees 272,714 207,391 497,424 Other long-term benefits - IAS 146,404 2,088 322,865 Total 2,552,181 2,566,731 3,779,308 a) Guarantees established by the Company in favor of key management personnel No guarantees have been given to key management personnel. 10.5 Compensation plans linked to share price There are no payment plans granted to the Directors or key management personnel based on the share price of the Enel Chile.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2020
INVENTORIES.
Inventories	11. INVENTORIES The detail of inventories as of December 31, 2020 and 2019, is as follows: As of December 31, 2020 2019 Classes of Inventories ThCh$ ThCh$ Supplies for Production 5,207,472 18,352,465 Gas 2,280,335 2,287,934 Oil 2,927,137 3,888,712 Coal — 12,175,819 Supplies for projects and spare parts 13,468,592 18,073,825 Electrical materials 4,633,965 3,245,960 Total 23,310,029 39,672,250 There are no inventories acting as security for liabilities. For the years ended December 31, 2020,2019 and 2018, raw materials and inputs recognized as fuel cost amount to ThCh$231,176,489, ThCh$230,944,415 and ThCh$231,028,169, respectively. (see Note 29). The amount corresponding to 2020 includes ThCh$ 21,246,157 and ThCh$ 328,626 for the adjustment of impairment of coal inventories and of diesel oil, respectively, related to the process of closure operations of the Bocamina II power plant (see Note 16.c.iv).

Current Tax Assets and Liabilit

Current Tax Assets and Liabilities	12 Months Ended
	Dec. 31, 2020
CURRENT TAX ASSETS AND LIABILITIES
Current Tax Assets and Liabilities	12. CURRENT TAX ASSETS AND LIABILITIES a) The detail of current tax receivables as of December 31, 2020 and 2019, is as follows: As of December 31, 2020 2019 Tax Receivables ThCh$ ThCh$ Monthly provisional tax payments 34,534,731 38,536,220 Tax credit for absorbed profits — 86,068,128 Tax credit for training expenses 503,682 2,668,941 Total 35,038,413 127,273,289 b) The detail of current tax payables as of December 31, 2020 and 2019, is as follows: As of December 31, 2020 2019 Current tax liabilities ThCh$ ThCh$ Income tax 72,359,944 17,995,833 Total 72,359,944 17,995,833

Investments Accounted for Using

Investments Accounted for Using the Equity Method	12 Months Ended
	Dec. 31, 2020
INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD.
Investments Accounted for Using the Equity Method	13. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD 13.1. Investments accounted for using the equity method a. The detail of the Group's investees accounted for using the equity method and the movements for the years ended December 31, 2020 and 2019, are as follows: Share of Foreign Other Other Balance as Balance as Balance as of Profit Dividends Currency Comprehensive Increase of Negative of Taxpayer ID Ownership 1-1-2020 Additions (Loss) Declared Translation Income (Decrease) 12-31-2020 Equity 12-31-2020 Number Associates and Joint Ventures Relationship Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Provision ThCh$ 76.418.940-K GNL Chile S.A. Associate Chile U.S. dollar 1,410,206 — 1,127,312 (686,058) (122,077) — — 1,729,383 — 1,729,383 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Joint Venture Chile Chilean peso 6,099,228 — 1,351,965 — — — — 7,451,193 — 7,451,193 76.014.570-K Enel Argentina S.A. Associate Argentina Angentine peso 401,908 — 15,333 — (130,962) — 84,284 370,563 — 370,563 76.364.085-K Energía Marina SpA. Associate Chile Chilean peso 17,246 — (70,360) — — — — (53,114) 53,114 — 77.157.779-2 Enel AMPCI Ebus Chile SpA Associate Chile U.S. dollar — 2,727,091 1,085,142 — (389,551) 18,982 — 3,441,664 — 3,441,664 TOTAL 7,928,588 2,727,091 3,509,392 (686,058) (642,590) 18,982 84,284 12,939,689 53,114 12,992,803 Share of Foreign Other Other Balance as Negative Balance as Balance as of Profit Dividends Currency Comprehensive Increase of Equity of Taxpayer ID Ownership 1-1-2019 Additions (Loss) Declared Translation Income (Decrease) 12-31-2019 Provision 12-31-2019 Number Associates and Joint Ventures Relationship Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ 76.418.940-K GNL Chile S.A. Associate Chile U.S. dollar 3,052,983 — (254,132) (1,518,880) 130,235 — — 1,410,206 — 1,410,206 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Joint Ventures Chile Chilean peso 9,473,711 — 695,437 (4,069,920) — — — 6,099,228 — 6,099,228 76.014.570-K Enel Argentina S.A. Associate Argentina Argentine peso 300,198 — 104,335 — (95,726) — 93,101 401,908 — 401,908 76.364.085-K Energías Marina SpA Associate Chile Chilean peso 46,639 131,647 (179,551) — 18,511 17,246 — 17,246 TOTAL 12,873,531 131,647 366,089 (5,588,800) 34,509 — 111,612 7,928,588 — 7,928,588 (*) 13.2. Additional financial information on investments in associates Financial information as of December 31, 2020 and 2019 of the main companies in which the Group exercises significant influence is detailed below: As of December 31, 2020 % Ownership Current Assets Non-current Current Liabilities Non-current Revenues Expenses Profit (Loss) Other Comprehensive Investments with Significant Influence Indirect ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GNL Chile S.A 57,032,080 1,433,019,578 117,974,825 1,366,888,682 553,288,674 (549,906,739) 3,381,935 (366,207) 3,015,728 Enel AMPCI E bus Chile SpA 20,007,409 93,871,600 15,101,345 81,569,344 7,503,692 (2,077,983) 5,425,709 — 5,425,709 As of December 31, 2019 % Ownership Current Assets Non-current Current Liabilities Non-current Revenues Expenses Profit (Loss) Other Comprehensive Investments with Significant Influence Indirect ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GNL Chile S.A 67,419,256 1,615,973,312 161,197,047 1,517,964,903 582,441,735 (583,204,131) (762,396) 389,843 (372,553) None of the Company’s associates have issued price quotations 13.3. Joint ventures Information as of December 31, 2020 and 2019 of the statements of financial position and statements of income of the joint venture related to Transmisora Eléctrica de Quillota Ltda., is as follows: Transmisora Eléctrica de Quillota Ltda. 50.0% 50.0% 12-31-2020 12-31-2019 ThCh$ ThCh$ Total current assets 7,157,805 3,346,667 Total non-current assets 10,068,936 10,834,220 Total current liabilities 806,841 365,640 Total non-current liabilities 1,517,515 1,616,791 Cash and cash equivalents 4,261,166 2,403,904 Revenues 4,643,283 3,191,566 Other fixed operating expenses (268,806) (768,866) Depreciation and amortization expense (782,799) (782,800) Other Income 4,187 6,087 Interest income 29,103 152,370 Income tax expense (921,039) (407,478) Profit (loss) 2,703,929 1,390,879 Comprehensive income 2,703,929 1,390,879 There are no significant commitments and contingencies, or restrictions to the availability of funds in associated companies and joint ventures.

Intangible Assets Other than Go

Intangible Assets Other than Goodwill	12 Months Ended
	Dec. 31, 2020
INTANGIBLE ASSETS OTHER THAN GOODWILL.
Intangible Assets Other than Goodwill	14. INTANGIBLE ASSETS OTHER THAN GOODWILL The balances of this caption as of December 31, 2020 and 2019 are presented below: As of December 31, 2020 2019 Intangible Assets, Gross ThCh$ ThCh$ Intangible Assets, Gross 275,527,801 229,944,365 Easements and water rights 20,551,471 22,553,618 Concessions 53,053,457 34,718,676 Patents, Registered Trademarks and Other Rights 679,227 771,002 Computer software 186,855,438 156,836,017 Other identifiable intangible assets 14,388,208 15,065,052 As of December 31, 2020 2019 Intangible Assets, Amortization and Impairment ThCh$ ThCh$ Accumulated Amortization and Impairment, Total (110,413,280) (97,665,772) Easements and water rights (5,519,394) (5,200,726) Concessions (9,469,344) (8,562,257) Patents, Registered Trademarks and Other Rights (478,232) (454,032) Computer software (92,187,254) (80,673,217) Other identifiable intangible assets (2,759,056) (2,775,540) As of December 31, 2020 2019 Intangible Assets, Net ThCh$ ThCh$ Intangible Assets, Net 165,114,521 132,278,593 Easements and water rights 15,032,077 17,352,892 Concessions 43,584,113 26,156,419 Patents, Registered Trademarks and Other Rights 200,995 316,970 Computer software 94,668,184 76,162,800 Other identifiable intangible assets 11,629,152 12,289,512 The following table presents intangible assets other than Goodwill as of December 31, 2020 and 2019: Easements and water rights Concessions Patents, Registered Trademarks and Other Rights Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2020 17,352,892 26,156,419 316,970 76,162,800 12,289,512 132,278,593 Changes in identifiable intangible assets Increases other than from business combinations — 23,221,080 — 32,122,529 — 55,343,609 Increase (decrease) from foreign currency translation differences (239,991) (3,566,641) — (273,172) (661,569) (4,741,373) Amortization (1) (556,017) (2,009,087) (24,200) (11,785,777) — (14,375,081) Impairment loss recognized in profit or loss (2) — (217,658) — — — (217,658) Increases (decreases) from transfers and other changes 91,775 — (91,775) (1,067) 1,067 — Increases (decreases) from transfers 91,775 — (91,775) (1,067) 1,067 — Disposals and removal from service (1,616,582) — — — — (1,616,582) Removals from service (1,616,582) — — — — (1,616,582) Argentina Hyperinflation Effect — — — — 142 142 Other increases (decreases) — — — (1,557,129) — (1,557,129) Total changes in identifiable intangible assets (2,320,815) 17,427,694 (115,975) 18,505,384 (660,360) 32,835,928 Closing balance as of December 31, 2020 15,032,077 43,584,113 200,995 94,668,184 11,629,152 165,114,521 Easements and water rights Concessions Patents, Registered Trademarks and Other Rights Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2019 17,736,954 25,953,878 7,394 60,067,635 11,606,532 115,372,393 Changes in identifiable intangible assets Increases other than from business combinations — — — 25,208,199 — 25,208,199 Increase (decrease) from foreign currency translation differences 425,373 2,028,583 — 156,906 926,375 3,537,237 Amortization (1) (809,435) (1,826,042) (24,200) (9,241,732) (1,598) (11,903,007) Increases (decreases) from transfers and other changes — — 333,776 (91,776) (242,000) — Increases (decreases) from transfers — — 333,776 (91,776) (242,000) — Argentina Hyperinflation Effect — — — — 203 203 Increase (decrease) — — — 63,568 — 63,568 Total changes in identifiable intangible assets (384,062) 202,541 309,576 16,095,165 682,980 16,906,200 Closing balance as of December 31, 2019 17,352,892 26,156,419 316,970 76,162,800 12,289,512 132,278,593 (1) See Note 31 a). (2) See Note 31 b). No impairment losses have been recognized as of December 31, 2020, 2019 and 2018. According to the estimates and projections of the Group’s Management, the projections for the cash flows attributable to intangible assets allow recovering the net value of these assets recorded as of December 31, 2020 (see Note 3. e).

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2020
GOODWILL.
Goodwill	15. GOODWILL The following table sets forth goodwill by cash-generating unit or group of cash-generating units to which it belongs and changes for the years ended December 31, 2020 and 2019: Opening Balance Transfer Merger by Absorption Foreign Currency Translation Closing Balance Foreign Currency Translation Closing Balance 12-31-2020 Company Cash Generating Unit ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Enel Colina S.A. Enel Colina S.A. 2,240,478 — — 2,240,478 — 2,240,478 Enel Distribución Chile S.A. Enel Distribución Chile 128,374,362 — — 128,374,362 — 128,374,362 Enel Generación Chile S.A. Generación Chile 731,782,459 24,860,356 — 756,642,815 — 756,642,815 GasAtacama Chile S.A. Generación Chile 24,860,356 (24,860,356) — — — — Almeyda Solar SpA Enel Green Power Chile S.A. 20,146,823 — 1,673,580 21,820,403 (1,194,585) 20,625,818 Geotérmica del Norte Enel Green Power Chile S.A. 75,646 — 6,284 81,930 (4,485) 77,445 Parque Eólico Talinay Oriente Enel Green Power Chile S.A. 7,564,601 — 628,385 8,192,986 (448,535) 7,744,451 Total 915,044,725 — 2,308,249 917,352,974 (1,647,605) 915,705,369 According to the Group Management’s estimates and projections, the expected future cash flows projections attributable to the cash-generating units or groups of cash-generating units, to which the acquired goodwill has been allocated, allow the recovery of its carrying amount as of December 31, 2020 and 2019 (see Note 3.e). The origin of the goodwill is detailed below: 1. Enel Colina S.A On December 31, 1996, Enel Distribución Chile S.A acquired 100% of Empresa Eléctrica de Colina Ltda (currently Enel Colina S.A.) from Inversiones Saint Thomas S.A., a company that is neither directly or indirectly related to Enel Distribución Chile S.A. 2. Enel Distribución Chile S.A. During November 2000, Enersis S.A. (currently Enel Américas S.A.) acquired in a public tender offer, an additional ownership interest of 25.4% in Enel Distribución Chile S.A. to reach 99.99% ownership. 3. Enel Generación Chile S.A. On May 11, 1999, Enersis S.A. (currently Enel Américas S.A.) acquired an additional 35% ownership interest in Empresa Nacional de Electricidad S.A. (currently Enel Generación Chile S.A.) to achieve 60% ownership of the generation company, through a public tender offer in the Santiago Stock Exchange and the purchase of shares in the United States (30% and 5%, respectively). On October 1, 2019, Gasatacama Chile S.A. merged with Enel Generación Chile S.A., with the latter being the legal surviving company. Due to the above, the following goodwill was directly recognized in Enel Generación Chile. 3.1 On April 22, 2014, Empresa Nacional de Electricidad S.A. (currently Enel Generación Chile S.A.) acquired 50% ownership interest in GasAtacama Chile S.A. (formerly Inversiones GasAtacama Holding Limitada), previously held by Southern Cross Latin América Private Equity Fund III L.P. 3.2. On July 12, 2002, Empresa Nacional de Electricidad S.A. (currently Enel Generación Chile S.A.) acquired 2.51% of the shares of Empresa Eléctrica Pangue S.A., upon exercise of the sale option by the minority shareholder International Finance Corporation (IFC). On May 2, 2012, Empresa Eléctrica Pangue S.A. merged with Compañía Eléctrica San Isidro S.A., with the latter being the legal surviving company. 3.3. On August 11, 2005, Empresa Nacional de Electricidad S.A. (currently Enel Generación Chile S.A.) acquired an ownership interest in Inversiones Lo Venecia Ltda., whose sole asset was a 25% interest in San Isidro S.A. On September 1, 2013, Compañía Eléctrica San Isidro S.A. merged with Endesa Eco S.A., with the latter being the legal surviving company. On November 1, 2013, Endesa Eco S.A. merged with Compañía Eléctrica Tarapacá S.A., with the latter being the legal surviving company. On November 1, 2016, Celta merged with GasAtacama Chile S.A., with the latter being the legal surviving company. 4. Enel Green Power Chile S.A. On March 26, 2013, Enel Green Power Chile S.A. acquired ownership interest in Parque Eólico Talinay Oriente S.A. On August 6, 2001, Enel Green Power Chile S.A. acquired ownership interests in Empresa Eléctrica Panguipulli S.A. and Empresa Eléctrica Puyehue S.A., which later merged with Panguipulli, with the latter company being the legal surviving company. Later, on July 1, 2020, Empresa Eléctrica Panguipulli S.A. was absorbed by Parque Eólico Taltal SpA, with the latter being the legal surviving company, and on August 1, 2020, Parque Eólico Taltal SpA was merged into Almeyda Solar SpA, with the latter company being the legal surviving company.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2020
PROPERTY, PLANT AND EQUIPMENT
Property, Plant and Equipment	16. PROPERTY, PLANT AND EQUIPMENT The following table sets forth the property, plant and equipment as of December 31, 2020 and 2019: As of December 31, 2020 2019 Classes of Property, Plant and Equipment, Gross ThCh$ ThCh$ Property, Plant and Equipment, Gross 9,768,708,590 9,225,653,590 Construction in progress 1,567,685,720 1,048,988,931 Land 78,366,909 77,754,923 Buildings 562,807,945 531,250,194 Generation Plant and Equipment 5,992,384,131 6,002,160,751 Network infrastructure 1,378,810,834 1,396,996,724 Fixtures and fittings 171,396,847 150,242,089 Other property, plant and equipment 17,256,204 18,259,978 As of December 31, 2020 2019 Classes of Accumulated Depreciation and Impairment in Property, Plant and Equipment ThCh$ ThCh$ Total Accumulated Depreciation and Impairment in Property, Plant and Equipment (4,735,212,118) (3,921,177,476) Buildings (144,646,529) (110,930,435) Plant and equipment (3,871,912,436) (3,106,167,890) Network infrastructure (584,630,846) (587,567,750) Fixtures and fittings (117,944,385) (102,483,181) Other property, plant and equipment (16,077,922) (14,028,220) As of December 31, 2020 2019 Classes of Property, Plant and Equipment, Net ThCh$ ThCh$ Property, Plant and Equipment, Net 5,033,496,472 5,304,476,114 Construction in progress 1,567,685,720 1,048,988,931 Land 78,366,909 77,754,923 Buildings 418,161,416 420,319,759 Generation Plant and Equipment 2,120,471,695 2,895,992,861 Network infrastructure 794,179,988 809,428,974 Fixtures and fittings 53,452,462 47,758,908 Other property, plant and equipment 1,178,282 4,231,758 The composition and movements of the property, plant and equipment accounts during the fiscal year ended December 31, 2020 and 2019 are as follows: Construction Land Buildings, Net Generation Network Fixtures and Other property, plant and equipment, Net Property, Plant and Changes in 2020 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2020 1,048,988,931 77,754,923 420,319,759 2,895,992,861 809,428,974 47,758,908 4,231,758 5,304,476,114 Increases other than from business combinations 744,544,601 - 151,195 691,268 101,862 119,324 - 745,608,250 Increases (decreases) from foreign currency translation differences (57,958,736) 28,352 (19,184,500) (54,569,811) (3,320,508) 2,286,520 87,719 (132,630,964) Depreciation (1) — — (20,527,447) (144,943,455) (36,650,102) (6,265,815) (3,141,195) (211,528,014) Impairment losses recognized in profit or loss for the period (2) (45,596,397) — — (652,638,983) — — — (698,235,380) Increases (decreases) from transfers and other changes (57,868,918) 59,304 11,483,868 41,125,722 — 5,200,024 - - Increases (decreases) from transfers from construction in progress (57,868,918) 59,304 11,483,868 41,125,722 — 5,200,024 - - Disposals and removals from service (1,425,412) - — (1,942,587) (8,509,816) — - (11,877,815) Disposals — — — (1,942,587) (6,899,719) — - (8,842,306) Removals (1,425,412) — — — (1,610,097) — - (3,035,509) Other increases (decreases) (3) (63,014,492) 489,124 25,862,428 36,315,417 33,129,578 4,137,244 - 36,919,299 Argentine hyperinflationary economy 16,143 35,206 56,113 441,263 — 216,257 - 764,982 Total changes 518,696,789 611,986 (2,158,343) (775,521,166) (15,248,986) 5,693,554 (3,053,476) (270,979,642) Closing balance as of December 31, 2020 1,567,685,720 78,366,909 418,161,416 2,120,471,695 794,179,988 53,452,462 1,178,282 5,033,496,472 Construction Land Buildings, Net Generation Network Fixtures and Other property, plant and equipment, Net Property, Plant and Changes in 2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2019 862,274,093 74,753,283 384,027,047 3,143,869,929 764,095,247 55,091,617 6,881,745 5,290,992,961 Increases other than from business combinations 320,298,423 - - - - - - 320,298,423 Increases (decreases) from foreign currency translation differences 9,880,815 36,282 29,731,649 81,221,513 4,238,408 65,341 361,574 125,535,582 Depreciation (1) — — (17,944,173) (159,163,293) (34,964,877) (6,299,395) (3,011,561) (221,383,299) Impairment losses recognized in profit or loss for the period (2) (32,967,462) — — (247,052,801) — — — (280,020,263) Increases (decreases) from transfers and other changes (121,288,336) 4,151,834 22,879,420 17,534,668 74,941,622 1,780,792 - — Increases (decreases) from transfers from construction in progress (121,288,336) 4,151,834 22,879,420 17,534,668 74,941,622 1,780,792 - — Disposals and removals from service — (406,656) (792,638) (948,350) (1,880,608) (837,345) - (4,865,597) Disposals — (406,656) — (948,350) — — - (1,355,006) Removals — — (792,638) — (1,880,608) (837,345) - (3,510,591) Other increases (decreases) (3) 10,843,933 (779,820) 2,418,454 59,398,742 2,999,182 (2,042,102) - 72,838,389 Argentine hyperinflationary economy (52,535) - — 1,132,453 — — - 1,079,918 Total changes 186,714,838 3,001,640 36,292,712 (247,877,068) 45,333,727 (7,332,709) (2,649,987) 13,483,153 Closing balance as of December 31, 2019 1,048,988,931 77,754,923 420,319,759 2,895,992,861 809,428,974 47,758,908 4,231,758 5,304,476,114 (1) See Note 31. (2) See clause iv) in section c) other information, contained in this same Note. (3) See Note 25. Additional information on property, plant and equipment, net a) Main investments The main additions to property, plant and equipment relate to investments in the Company’s networks, investments in operating plants and new projects under construction. Total work in progress amounted to ThCh$ 1,567,685,720 and ThCh$ 1,048,988,931 as of December 31, 2020 and 2019, respectively. In the Distribution Business, the main investments are improvements in networks to optimize their operation, in order to improve efficiency and quality of service level. The carrying amount of these works in progress totaled ThCh$148,835,155 and ThCh$173,566,099 as of December 31, 2020 and 2019, respectively. In the Generation Business, investments include works towards the new capacity program. This includes: i) Progress on the construction of the Los Cóndores Hydroelectric power plant, by Enel Generación Chile, which will use the resources from the Maule Lake and will have an installed capacity of approximately 150 MW. The carrying amount recorded in assets for this project was ThCh$637,303,224 and ThCh$541,401,896, as of December 31, 2020 and 2019, respectively. ii) Progress on the Sol de Lila, Azabache, Domeyko, Valle del Sol, Finis Terrae, Renaico II, Cerro Pabellón and Campos del Sol projects, which together represent an installed capacity of approximately 1.3 GW, and which are being executed by Enel Green Power Chile. The carrying amount recorded in assets for this project was ThCh$436,164,981 and ThCh$17,485,325, as of December 31, 2020 and 2019, respectively. Following the accounting criteria described in Note 3.a), only those investments made in the abovementioned generation projects qualify as assets suitable for capitalizing interest. As a whole, these projects represent cumulative cash disbursements in the amount of ThCh$780,827,755 and ThCh$543,844,674, as of December 31, 2020 and 2019. b) Capitalized cost b.1) Capitalized financial expenses The capitalized cost for financial expenses amounted to ThCh $ 33,109,819 as of December 31, 2020, (ThCh $ 9,321,354 and ThCh $ 6,435,646 as of December 31, 2019 and 2018, respectively) (see Note 34). The average financing rate ranged between 4.60% and 6.84% as of December 31, 2020 (5.86% as of December 31, 2019). The increase in interest capitalization evidenced during 2020 is mainly explained by a greater development of non-conventional renewable energy projects and by a greater continuity in the development of the Los Cóndores project. Note that, with respect to the Los Cóndores project, given the difficulties inherent to a project of this magnitude and the impacts related to COVID-19, which implied some suspensions in the execution of the same during the last year, an update of the project schedule was provided by Enel Generación Chile in an essential fact dated July 27, 2020, estimating that it will be completed in the last quarter of 2023. b.2) Capitalized personnel expenses in work-in-progress The capitalized cost for personnel expenses directly related directly to constructions in progress amounted to ThCh$25,539,316, ThCh$17,610,861 and ThCh$16,710,963 as of December 31, 2020, 2019 and 2018, respectively. The increase in the capitalization of interest and personnel expenses compared to 2019 is mainly due to a greater development of non-conventional renewable energy projects. c) Other information i) As of December 31, 2020, and 2019, the Group maintained commitments to acquire tangible fixed assets in the amount of ThCh$303,709,257 and ThCh$185,457,682, respectively. ii) As of December 31, 2020, and 2019, Enel Chile had no property, plant and equipment pledged as collateral for liabilities. iii) The Group and its consolidated entities have insurance contracts with policies that cover any risk, earthquake and machinery breakdown up to a limit of €1,000 million (ThCh$873,300,000) , and this coverage includes damages due to business disruption. Additionally, the Group has civil liability insurance policies for third-party claims up to a limit of €500 million (ThCh$436,650,000) when these claims are due to the rupture of any dams owned by the Company or its Subsidiaries, and Environmental Civil Liability to cover environmental damage claims up to €20 million (ThCh$17,466,000). The premiums associated with these policies are recorded proportionally to each company in the caption prepaid expenses. iv) Decarbonization plan Development during 2019 On June 4, 2019, the Company’s subsidiaries Enel Generación Chile and Gasatacama Chile entered into an agreement by which both companies, in line with their own sustainability strategy and strategic plan, and the Ministry of Energy, regulated how they would proceed to progressively eliminate the Tarapacá, Bocamina I and Bocamina II coal-fired generation units (hereinafter, Tarapacá, Bocamina I and Bocamina II). The agreement is subject to the condition precedent that the regulations on capacity transfers between generation companies go into force, which establishes, among other things, the essential conditions to ensure non-discriminatory treatment among the generators and to define the State of Strategic Reserve. By virtue of the above, Enel Generación Chile and Gasatacama Chile would formally and irrevocably agree to the final withdrawal of Bocamina 1 and Tarapacá, respectively, from the National Electricity System, establishing their deadlines at May 31, 2020 for Tarapacá, and December 31, 2023 for Bocamina I. The Group stated its intention to accelerate the withdrawal of Tarapacá and Bocamina I, promoting the termination of their operations, all fully coordinated with the Authority. Within this context, on June 17, 2019, Gasatacama Chile submitted a request to the National Energy Commission (hereinafter CNE) to perform the final withdrawal, disconnection, and termination of operations of Tarapacá at an earlier date, i.e., by December 31, 2019. On July 26, 2019, by Exempt Resolution No. 450 and in accordance with the provisions of article 72 -18 of the General Law of Electricity Services, the CNE authorized the final withdrawal, disconnection, and termination of operations of Tarapacá from December 31, 2019. The management of the Tarapacá and Bocamina I assets will be carried out separately, and these assets will not form part of the Cash-Generating Unit formed by the rest of the plants owned by the Enel Generación Chile Group, whose economic management is performed in an integrated manner. Due to the abovementioned and as a result of impairment testing on an individual basis, in 2019 the Group recognized impairment losses in the amount of ThCh$197,188,542 and ThCh $82,831,721 to adjust the carrying amount of the capitalized investment in Tarapacá and Bocamina I, respectively, to their recoverable amount. The resulting recoverable amount, after the recorded impairment, corresponds to the value of the lands held in Tarapacá and Bocamina I, in the amount of ThCh$1,613,803 and ThCh$ 6,362,581, respectively. With respect to Bocamina II, Enel Generación Chile set a goal for its early withdrawal by December 31, 2040, at the latest. All of the above was subject to the authorization established in the General Law of Electricity Services. The financial effects would depend on the factors involved in the electricity market behavior, such as fuel prices, hydrological conditions, the growth of electricity demand, and international inflation indexes, which could not be determined at the close of 2019. Notwithstanding the above, the useful lives of the Bocamina II assets were adjusted such that in any case, the depreciation would be calculated for any useful lives beyond December 31, 2040. This measure implied the recognition of a higher depreciation of ThCh$ 4,083,855 during 2019. Development during 2020: On May 27, 2020, the Board of Directors of Enel Generación Chile approved, subject to the corresponding CNE authorizations, the early withdrawal of Bocamina I and Bocamina II, establishing deadlines for such withdrawals on December 31, 2020 and May 31, 2022, respectively. The corresponding request was communicated to the CNE that same day. This decision shows the Company's commitment to fight against climate change and also considered the deep changes being experienced by the Industry, including the constant and increasing penetration of renewable energies and the reduction in commodities prices, making gas-powered production more competitive, which would give greater flexibility to the system's operations in comparison to coal-fired production. On July 3, 2020, the CNE issued Exempt Resolution No. 237 authorizing the final withdrawal, disconnection, and termination of operations of Bocamina I from December 31, 2020. Regarding Bocamina II, the Group also intended to accelerate its early closure, promoting the discontinuation of its operations in strict coordination with the Authority. In this context, on July 23, 2020, the CNE issued Exempt Resolution No. 266 authorizing the final withdrawal, disconnection, and termination of operations of Bocamina II as of May 31, 2022. As occurred in 2019 with Tarapacá and Bocamina I, Bocamina II’s management assets will be managed separately and, accordingly, these assets will not form part of the Cash-Generating Unit consisting of the rest of the plants owned by the Enel Generación Chile Group, whose economic management continues to be carried out in a centralized manner. Consequently, and as a result of impairment testing on an individual basis, in 2020 the Group recorded an impairment loss of ThCh$697,856,387 to adjust the carrying amount of the capitalized investment in Bocamina II to its recoverable value (See Note 31). The resulting recoverable value, after the impairment recorded, corresponds to the value of the land associated with this plant, which as of December 31, 2020 was ThCh$2,014,684. These situations have effects on deferred taxes, which are disclosed in Note 19.b. v) As of September 2020, the Company’s subsidiary Empresa Nacional de Geotermia recorded an impairment of its works in progress of ThCh$378,993. Subsequently, its liquidation process began in December 2020. vi) As a result of the public disturbances occurred in Chile during the last quarter of 2019, write-offs related to property, plant and equipment amounting to ThCh$1,629,983 were recorded. On the other hand, equipment disposals amounting to ThCh$1,880,608 ocurred. Both concepts total ThCh$3,510,591, see Note 32.

Investment Property

Investment Property	12 Months Ended
	Dec. 31, 2020
INVESTMENT PROPERTY.
Investment Property	17. INVESTMENT PROPERTY The investment property breakdown and activity during 2020 and 2019 are detailed as follows: Investment Accumulated Investment Investment Property, Net, Cost Model ThCh$ ThCh$ ThCh$ Balance at January 1, 2019 9,189,377 (1,632,021) 7,557,356 Depreciation expense — (19,812) (19,812) Impairment loss recognized in the income statement — (742,389) (742,389) Balance at December 31, 2019 9,189,377 (2,394,222) 6,795,155 Depreciation expense — (19,812) (19,812) Reversals of impairment recognized in the income statement — 646,597 646,597 Balance at December 31, 2020 9,189,377 (1,767,437) 7,421,940 During 2020 and 2019, no real estate property has been sold. - Fair value measurement and hierarchy As of December 31, 2020, and 2019, the fair value of the investment was ThCh$8,484,901 and ThCh$7,880,432 respectively. This value was determined according to independent appraisals. The input data used in this valuation are considered to be Level 3 for the purposes of the fair value hierarchy. The fair value hierarchy for investment properties is the following: Fair value measured as of December 31, 2020 Level 1 Level 2 Level 3 ThCh$ ThCh$ ThCh$ Investment properties — — 8,484,901 See Note 3.h. The revenue and expenses derived from investment properties for the years ended December 31, 2020, 2019 and 2018, are detailed as follows: 2020 2019 2018 Income and expense from investment properties ThCh$ ThCh$ ThCh$ Income derived from rental income from investment properties 196,955 202,896 204,166 Direct operating expenses from investment properties that generate rental income (36,761) (44,136) (56,327) Total 160,194 158,760 147,839 There are no contracts for repairs, maintenance, acquisition, construction, or development which represent future obligations for the Group as of December 31, 2020 and 2019. The Group has engaged insurance policies to cover the possible risks to which the different elements of its real estate investments are exposed, as well as potential claims that may arise due to the performance of its activities, with the understanding that these policies sufficiently cover these risks.

Right-Of-Use-Assets

Right-Of-Use-Assets	12 Months Ended
	Dec. 31, 2020
RIGHT-OF-USE-ASSETS
Right-Of-Use-Assets	18. Right-of-use assets for the year ended December 31, 2020 and 2019, are detailed as follows: Land Other Plants and Equipments Right-of-use assets, Net Changes in 2020 ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2020 34,081,799 21,761,711 55,843,510 New assets contracts, by right-of use 213,445 2,491,480 2,704,925 Increases (decreases) from foreign currency translation differences, net 830,349 157,520 987,869 Depreciation (1,894,646) (2,139,466) (4,034,112) New agreements (decreases) 356,444 (356,444) - Other increases (decreases) (707,853) (2,338,390) (341,318) Closing balance as of December 31, 2020 33,373,946 19,423,321 55,502,192 Land Other Plants and Equipments Right-of-use assets, Net Changes in 2019 ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2019 before application of IFRS 16 2,758 17,651,914 17,654,672 Effects first time adoption IFRS 16 23,097,767 5,716,375 28,814,142 Opening balance as of January 1, 2019 after application of IFRS 16 23,100,525 23,368,289 46,468,814 Increases (decreases) from foreign currency translation differences, net 1,537,867 - 1,537,867 Depreciation (1,482,706) (1,838,562) (3,321,268) New agreements (decreases) 10,926,113 231,984 11,158,097 Total changes 10,981,274 -1,606,578 9,374,696 Closing balance as of December 31, 2019 34,081,799 21,761,711 55,843,510 As of December 31, 2020 and 2019, the main right-of-use assets and lease liabilities are detailed as follows: -These come primarily from a contract for Electricity Transmission Lines and Facilities (Ralco-Charrúa 2X220 KV), entered into by Enel Generación Chile S.A. and Transelec S.A. This contract has a duration of 20 years and accrues interest at an annual rate of 6.5%. -In addition, as a consequence of the application of IFRS 16 (see Note 3.f), the Group recognized as of January 1, 2019 right-of-use assets related to property, plant and equipment in the amount of ThCh$28,814,142. The present value of future payments derived from those contracts is detailed as follows: As of December 31, 2020 2019 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 8,783,640 1,775,929 7,007,711 7,602,720 1,760,705 5,842,015 From one to two years 6,583,269 1,546,496 5,036,773 6,234,867 1,719,045 4,515,822 From two to three years 8,399,111 1,332,024 7,067,087 6,049,847 1,484,321 4,565,526 From three to four years 3,271,835 1,245,169 2,026,666 8,326,858 1,265,224 7,061,634 From four to five years 3,077,572 1,174,438 1,903,134 2,964,375 1,180,435 1,783,940 More than five years 37,595,016 8,770,869 28,824,147 38,630,310 8,991,558 29,638,752 Total 67,710,443 15,844,925 51,865,518 69,808,977 16,401,288 53,407,689 a) Short-term and low-value leases The consolidated income statement for the years ended December 31, 2020 and 2019 includes expenses in the amount of ThCh$4,958,760 and ThCh$3,824,195, respectively, of which ThCh$3,334,241 correspond to short-term lease payments in 2020 and ThCh$1,995,392 in 2019; while ThCh$1,624,519 and ThCh$1,828,803, relate to leases with variable payment clauses in 2020 and 2019, respectively, which are exempt from the application of IFRS 16 (see Note 3.f). As of December 31, 2020 and 2019, future payments derived from those contracts are detailed as follows: As of December 31, As of December 31, 2020 2019 ThCh$ ThCh$ Less than one year 4,813,265 3,485,151 From one to two years — — From two to three years — — From three to four years — — From four to five years — — More than five years — — Total 4,813,265 3,485,151

Income Tax and Deferred Taxes

Income Tax and Deferred Taxes	12 Months Ended
	Dec. 31, 2020
INCOME TAX AND DEFERRED TAXES
Income Tax And Deferred Taxes	19. INCOME TAX AND DEFERRED TAXES a) Income taxes The components of income tax for the years 2020, 2019 and 2018 are detailed as follows: 2020 2019 2018 Current Income Tax and Adjustments to Current Income Tax for Previous Periods ThCh$ ThCh$ ThCh$ Current income tax (155,196,656) (54,904,679) (47,354,780) Adjustments to current tax from the previous period 3,694,656 (2,251,167) (6,304,285) Current tax (expenses) / benefit (related to cash flow hedges) 72,354,119 (36,172,878) (60,650,786) Other current tax benefit / (expense) (98,646) (1,197,052) (856,466) Current tax expense, net (79,246,527) (94,525,776) (115,166,317) Benefit / (expense) from deferred taxes for origination and reversal of temporary differences 160,551,634 33,297,872 (43,134,500) Adjustments to deferred taxes from the previous period — — 4,818,298 Total deferred tax benefit / (expense) 160,551,634 33,297,872 (38,316,202) Income tax expense 81,305,107 (61,227,904) (153,482,519) The following table shows the reconciliation of the tax rate as of December 31, 2020, 2019 and 2018: 2020 2019 2018 Reconciliation of Tax Expense Tax Rate ThCh$ Tax Rate ThCh$ Tax Rate ThCh$ ACCOUNTING INCOME BEFORE TAX (133,691,942) 377,321,122 566,330,276 Total tax income (expense) using statutory rate 36,096,825 (27.00)% (101,876,703) (27.00)% (152,909,175) Tax effect of rates applied in other countries — — 232,897 — — Tax effect of tax-exempt revenue and other positive effects impacting the effective rate 42,557,794 42,638,986 1,746,052 Tax effect of non-deductible expenses for determining taxable profit (loss) (7.32)% (9,790,603) (2.76)% (10,399,776) (2.26)% (12,786,965) Tax effect of adjustments to income taxes in previous periods 3,694,656 (0.60)% (2,251,167) (1.11)% (6,304,285) Adjustments for prior periods deferred taxes - — — 4,818,298 Price level restatement for tax purposes (investments and equity) 8,746,435 10,427,859 11,953,556 Total adjustments to tax expense using statutory rate 45,208,282 40,648,799 (0.10)% (573,344) Income tax benefit (expense) 81,305,107 (16.23)% (61,227,904) (27.10)% (153,482,519) The main temporary differences are described below. b) Deferred taxes The origin of and changes in deferred tax assets and liabilities as of December 31, 2020 and 2019 are as follows: 12-31-2020 12-31-2019 Assets Liabilities Assets Liabilities Deferred Taxes Assets/(Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ Depreciations 55,197,762 (249,821,145) 10,652,313 (404,453,928) Obligations for post-employment benefits 9,581,174 (5,997) 7,772,646 (34,413) Revaluations of financial instruments — — 456,888 — Tax loss 46,518,690 — 81,154,636 — Provisions 91,579,562 — 87,275,541 — Dismantling Provision 51,513,634 — 44,485,711 — Provision for Civil Contingencies 3,991,087 — 3,502,161 — Provision Contingencies Workers — — 492,522 — Provision for doubtful trade accounts 12,544,171 — 14,555,712 — Provision of Human Resources accounts 8,605,410 — 7,859,341 — Other Provisions 14,925,260 — 16,380,094 — Other Deferred Taxes 24,942,402 (38,036,065) 20,980,774 (31,240,859) Activation of expenses for issuance of financial debt — (10,691,535) — (11,412,737) Monetary Correction - Argentina — (1,015,095) — (657,871) Other Deferred Taxes 24,942,402 (26,329,435) 20,980,774 (19,170,251) Deferred taxes Assets/(Liabilities) before compensation 227,819,590 (287,863,207) 208,292,798 (435,729,200) Compensation deferred taxes Assets/Liabilities (119,805,645) 119,805,645 (186,444,559) 186,444,559 Deferred taxes Assets/(Liabilities) after compensation 108,013,945 (168,057,562) 21,848,239 (249,284,641) Changes Recognized in others in comprehensive income Net balance as of January 1, 2020 Recognized in profit or loss Recognized in others in comprehensive income Foreign currency translation difference Other increases Net balance as of December 31, 2020 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Depreciations (1) (393,801,615) 191,919,566 — 7,258,666 — (194,623,383) Obligations for post-employment benefits 7,738,233 (464,804) 2,308,510 (6,762) — 9,575,177 Revaluations of financial instruments 456,888 (93,879) (387,000) 23,991 — — Tax loss 81,154,636 (33,611,187) — (1,024,759) — 46,518,690 Provisions 87,275,541 5,091,987 — (787,966) — 91,579,562 Dismantling Provision 44,485,711 7,238,957 — (211,034) — 51,513,634 Provision for Civil Contingencies 3,502,161 464,407 — 24,519 — 3,991,087 Provision Contingencies Workers 492,522 (517,792) — 25,270 — — Provision for doubtful trade accounts 14,555,712 (1,995,773) — (15,768) — 12,544,171 Provision of Human Resources accounts 7,859,341 801,863 — (55,794) — 8,605,410 Other Provisions 16,380,094 (899,675) — (555,159) — 14,925,260 Other Deferred Taxes (10,260,085) (2,290,049) 2,464 2,512 (548,505) (13,093,663) Capitalization of expenses for issuance of financial debt (11,412,738) 721,203 — — (10,691,535) Monetary Correction - Argentina (657,871) 191,281 — (548,505) (1,015,095) Other Deferred Taxes 1,810,524 (3,202,533) 2,464 2,512 — (1,387,033) Deferred taxes Assets/(Liabilities) (227,436,402) 160,551,634 1,923,974 5,465,682 (548,505) (60,043,617) Changes Recognized in others in comprehensive income Net balance as of January 1, 2019 Recognized in profit or loss Recognized in others in comprehensive income Foreign currency translation difference Other Net balance as of December 31, 2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Depreciations (1) (349,976,401) (5,668,543) — (1,561,204) (36,595,467) (393,801,615) Obligations for post-employment benefits 5,709,648 126,352 2,099,845 — (197,612) 7,738,233 Revaluations of financial instruments — — 710,523 — (253,635) 456,888 Tax loss 36,921,157 14,343,314 — 2,096,339 27,793,826 81,154,636 Provisions 55,080,385 24,123,136 — 795,123 7,276,897 87,275,541 Dismantling Provision 23,627,264 20,711,621 — 34,574 112,252 44,485,711 Provision for Civil Contingencies 4,108,710 (606,549) — — — 3,502,161 Provision Contingencies Workers 430,900 61,622 — — — 492,522 Provision for doubtful trade accounts 13,253,612 1,302,403 — 128 (431) 14,555,712 Provision of Human Resources accounts 7,432,939 3,233,471 — (13,109) (2,793,960) 7,859,341 Other Provisions 6,226,960 (579,432) — 773,530 9,959,036 16,380,094 Other Deferred Taxes (6,643,613) 373,614 992 — (3,991,078) (10,260,085) Capitalization of expenses for issuance of financial debt (11,202,063) (407,318) — — 196,643 (11,412,738) Monetary Correction - Argentina (425,687) (207,916) — — (24,268) (657,871) Other Deferred Taxes 4,984,137 988,848 992 — (4,163,453) 1,810,524 Deferred taxes Assets/(Liabilities) (258,908,824) 33,297,873 2,811,360 1,330,258 (5,967,069) (227,436,402) (1) See Note 16, c), iv). Recovery of deferred tax assets will depend on whether sufficient taxable profits are obtained in the future. The Company’s Management believes that the future profit projections for its subsidiaries will allow these assets to be recovered. As of December 31, 2020, the Group has not recognized deferred tax assets related to tax loss carry forwards of for ThCh$4,551,790 (ThCh$4,625,940 as of December 31, 2019) (see Note 3.p). Concerning temporary differences related to investments in consolidated entities and certain joint ventures, the Group has not recognized deferred tax liabilities associated with undistributed profits, in which the position of control exercised by the Group over such consolidated entities allows it to manage the time of their reversal, and it is estimated that they will not be reversed in the near future. The total amount of these taxable temporary differences, for which no deferred tax liabilities have been recognized as of December 31, 2020, amounts to ThCh$1,317,729,055 (ThCh$1,323,714,721 as of December 31, 2019). Additionally, no deferred tax assets have been recorded in relation to the deductible temporary differences associated with investments in consolidated entities and certain joint ventures. Such temporary differences are not expected to be reversed in the foreseeable future or tax gains will not be available for their use. As of December 31, 2020, such deductible temporary differences amount to ThCh$999,207,087 (ThCh$691,241,687 as of December 31,2019). The Group companies are potentially subject to income tax audits by the tax authorities of each country in which the Group operates. Such tax audits are limited to a number of annual tax periods and once these have expired, audits of these periods can no longer be performed. Tax audits by nature are often complex and can require several years to complete. Tax years potentially subject to examination are 2017 to 2019. Given the range of possible interpretations of tax standards, the results of any future inspections carried out by tax authorities for the years subject to audit can give rise to tax liabilities that cannot currently be quantified objectively. Nevertheless, the Company’s Management estimates that the liabilities, if any, that may arise from such audits, would not significantly impact the Group companies’ future results. The effects of deferred taxes on the components of other comprehensive income attributable to both controlling and non-controlling interests for the years ended 2020, 2019 and 2018, are as follows: 2020 2019 2018 Effects of Income Tax on the Components of Amount Before Income Tax Amount After Amount Before Income Tax Amount After Amount Before Income Tax Amount After Other Comprehensive Income ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Financial assets at fair value with changes in other comprehensive income (9,125) 2,464 (6,661) (3,673) 992 (2,681) (411) 111 (300) Cash flow hedge 267,540,328 (72,741,119) 194,799,209 (139,174,121) 36,883,401 (102,290,720) (221,906,855) 60,650,786 (161,256,069) Share of other comprehensive income from associates and joint ventures accounted for using the equity method 18,982 — 18,982 — — — — Foreign currency translation (69,218,245) — (69,218,245) 73,114,966 — 73,114,966 107,492,316 — 107,492,316 Actuarial gains(losses) on defined-benefit pension plans (8,545,834) 2,308,510 (6,237,324) (7,777,204) 2,099,845 (5,677,359) 37,881 (10,228) 27,653 Income tax related to components of other 189,786,106 (70,430,145) 119,355,961 (73,840,032) 38,984,238 (34,855,794) (114,377,069) 60,640,669 (53,736,400) The following table shows the reconciliation of deferred tax movements between balance sheet and income taxes in other comprehensive income as of December 31, 2020, 2019 and 2018: For the years ended December 31, 2020 2019 2018 Deferred taxes of components of other comprehensive income ThCh$ ThCh$ ThCh$ Total increases (decreases) for deferred taxes of other comprehensive income from continuing operations 1,923,974 2,811,360 (10,117) Income tax of changes in cash flow hedge transactions (72,354,119) 36,172,878 60,650,786 Total income tax relating to components of other comprehensive income (70,430,145) 38,984,238 60,640,669

Other Financial Liabilities

Other Financial Liabilities	12 Months Ended
	Dec. 31, 2020
OTHER FINANCIAL LIABILITIES
Other Financial Liabilities	20. OTHER FINANCIAL LIABILITIES. The balance of other financial liabilities as of December 31, 2020 and 2019 is as follows: 12-31-2020 21-31-2019 Current Non-current Current Non-current Other financial liabilities ThCh$ ThCh$ ThCh$ ThCh$ Interest –bearing borrowings 152,076,992 1,467,421,655 158,562,319 1,667,271,871 Hedging derivatives (*) 5,398,864 16,167,471 48,225,766 25,208,326 Non-hedging derivatives (**) 23,285 — 2,026,476 124,048 Total 157,499,141 1,483,589,126 208,814,561 1,692,604,245 (*) See Note 23.2.a (**)See Note 23.2.b 20.1 The detail of current and non-current interest-bearing borrowings as of December 31, 2020 and 2019 is as follows: 12-31-2020 12-31-2019 Current Non-current Current Non-current Classes of Interest-bearing borrowings ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing borrowings 152,076,992 1,467,421,655 158,562,319 1,667,271,871 Secured bank loans 106,783,562 21,315,003 113,247,263 135,297,019 Unsecured bank loans 4 — 5 — Unsecured obligations with the public 45,293,426 1,446,106,652 45,315,051 1,531,974,852 Total 152,076,992 1,467,421,655 158,562,319 1,667,271,871 Bank borrowings by currency and contractual maturity as of December 31, 2020 and 2019 are as follows: - Summary of bank borrowings by currency and maturity Maturity Maturity Country Currency Effective Interest Nominal Secured / One to three Three to twelve Total Current One to two Two to three Total Non- Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 1.77% 1.77% Secured - 106,783,562 106,783,562 21,315,003 - 21,315,003 Chile CLP 6.00% 6.00% Unsecured 4 - 4 - - - Total 4 106,783,562 106,783,566 21,315,003 - 21,315,003 Maturity Maturity Country Currency Effective Nominal Secured / Unsecured One to three Three to twelve Total Current One to two years Two to three Total Non- Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 3.31% 3.31% Sí 134,532 113,112,731 113,247,263 112,747,516 22,549,503 135,297,019 Chile CLP 6.00% 6.00% No 5 - 5 - - - Total 134,537 113,112,731 113,247,268 112,747,516 22,549,503 135,297,019 Fair value measurement and hierarchy The fair value of current and non-current bank borrowings as of December 31, 2020 is ThCh$127,771,152 (ThCh$247,030,075 as of December 31,2019). The borrowings has been categorized as Level 2 fair value measurement based on the entry data used in the valuation techniques (see Note 3.h). Identification of bank borrowings by company 12-31-2020 Current Non-current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Type of Amortization Secured Less than More Total One to Two to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 1 — 1 — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 3 — 3 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile 97.018.000-1 Scotiabank Chile Chile US$ 2.10% 2.10% Upon expiration Yes — — 0 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile Foreign Inter-American Development Bank ( BID ) E.E.U.U. US$ 1.50% 1.50% Upon expiration Yes — 39,966 39,966 21,315,003 — — 76.321.458-3 Almeyda Solar SPA Chile 91.018.000-1 Scotiabank Chile Chile US$ 2.03% 2.03% Upon expiration Yes — 106,743,596 106,743,596 — — — Total 4 106,783,562 106,783,566 21,315,003 — 21,315,003 12-31-2019 Current Non-current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Type of Amortization Secured Less than More Total One to Two to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 1 — 1 — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 4 — 4 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile 97.018.000-1 Scotiabank Chile Chile US$ 2.10% 2.10% Upon expiration Yes 134,532 112,747,516 112,882,048 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile Foreign Inter-American Development Bank ( BID ) E.E.U.U. US$ 1.50% 1.50% Upon expiration Yes — 43,220 43,220 — 22,549,503 22,549,503 76.321.458-3 Almeyda Solar SPA Chile 91.018.000-1 Scotiabank Chile Chile US$ 2.03% 2.03% Upon expiration Yes — 321,995 321,995 112,747,516 — 112,747,516 Total 134,537 113,112,731 113,247,268 112,747,516 22,549,503 135,297,019 20.2 Unsecured liabilities The detail of Unsecured Liabilities by currency and maturity as of December 31, 2020 and 2019, is as follows: Summary of Unsecured liabilities by currency and maturity Non-Current Maturity Maturity Effective Interest Nominal Interest Secured Less than 90 days Three to Twelve months Total Current One to two years Two to three Three to four Four to five years More than five Total Non- Country Currency Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.71% 6.49% No 9,140,614 2,551,520 11,692,134 — — 282,085,533 — 914,327,429 1,196,412,962 Chile UF 6.00% 5.48% No — 33,601,292 33,601,292 32,474,175 32,474,175 32,474,175 32,474,175 119,796,990 249,693,690 Total 9,140,614 36,152,812 45,293,426 32,474,175 32,474,175 314,559,708 32,474,175 1,034,124,419 1,446,106,652 Non-Current Maturity Maturity Effective Interest Nominal Interest Secured Less than 90 days Three to Twelve months Total Current One to two years Two to three Three to four Four to five years More than five Total Non- Country Currency Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.59% 6.49% No 7,700,030 4,755,019 12,455,049 — — — 296,420,703 961,519,091 1,257,939,794 Chile U.F. 6.00% 5.48% No — 32,860,002 32,860,002 31,624,776 31,624,776 31,624,776 31,624,776 147,535,954 274,035,058 Total 7,700,030 37,615,021 45,315,051 31,624,776 31,624,776 31,624,776 328,045,479 1,109,055,045 1,531,974,852 Individual identification of Unsecured liabilities by debtor. 12-31-2020 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Maturity Secured Less than Three to Twelve months Total One to Two to Three to Four to More Total Non- 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-1 E.E.U.U US$ 7,96% 7,88% Upon expiration No 4,802,802 — 4,802,802 — — — — 145,773,744 145,773,744 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-2 E.E.U.U US$ 7,40% 7,33% Upon expiration No 1,535,840 — 1,535,840 — — — — 49,297,180 49,297,180 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-3 E.E.U.U US$ 8,26% 8,13% Upon expiration No 972,757 — 972,757 — — — — 23,349,497 23,349,497 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Unica 24296 E.E.U.U US$ 4,32% 4,25% Upon expiration No — 2,551,520 2,551,520 — — 282,085,533 — 282,085,533 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander -317 Serie-H Chile UF 7,17% 6,20% Semestral No — 6,682,676 6,682,676 6,046,629 6,046,629 6,046,629 6,046,629 15,431,031 39,617,547 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander 522 Serie-M Chile UF 4,82% 4,75% Semestral No — 26,918,616 26,918,616 26,427,546 26,427,546 26,427,546 26,427,546 104,365,959 210,076,143 76.536.353-5 Enel Chile S.A. Chile Foreign BNY Mellon - Unica E.E.U.U US$ 5,24% 4,88% Upon expiration No 1,829,215 — 1,829,215 695,907,008 695,907,008 Total Unsecured Bonds 9,140,614 36,152,812 45,293,426 32,474,175 32,474,175 314,559,708 32,474,175 1,034,124,419 1,446,106,652 12-31-2019 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Maturity Secured Less than Three to Twelve months Total One to Two to Three to Four to More Total Non- 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-1 E.E.U.U US$ 7,96% 7,88% Upon expiration No 5,058,091 — 5,058,091 — — — — 153,480,285 153,480,285 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-2 E.E.U.U US$ 7,40% 7,33% Upon expiration No 1,617,476 — 1,617,476 — — — — 51,960,662 51,960,662 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-3 E.E.U.U US$ 8,26% 8,13% Upon expiration No 1,024,463 — 1,024,463 — — — — 24,876,133 24,876,133 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Unica 24296 E.E.U.U US$ 4,32% 4,25% Upon expiration No — 2,828,573 2,828,573 — — — 296,420,703 — 296,420,703 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander -317 Serie-H Chile UF 7,17% 6,20% Semestral No — 6,592,332 6,592,332 5,888,467 5,888,467 5,888,467 5,888,467 20,428,651 43,982,519 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander 522 Serie-M Chile UF 4,82% 4,75% Semestral No — 26,267,670 26,267,670 25,736,309 25,736,309 25,736,309 25,736,309 127,107,303 230,052,539 76.536.353-5 Enel Chile S.A. Chile Foreign BNY Mellon - Unica E.E.U.U US$ 5,24% 4,88% Upon expiration No — 1,926,446 1,926,446 — — — — 731,202,011 731,202,011 Total Unsecured Bonds 7,700,030 37,615,021 45,315,051 31,624,776 31,624,776 31,624,776 328,045,479 1,109,055,045 1,531,974,852 20.3 Secured liabilities As of December 31, 2020 and 2019, there were no secured bonds. Fair value measurement and hierarchy The fair value of the current and non-current secured and unsecured liabilities as of December 31, 2020 ThCh$1,866,198,159 (ThCh$1,941,481,412 as of December 31, 2019). These liabilities has been categorized as Level 2 (See Note 3.h). It is important to note that these financial liabilities are measured at amortized cost (See Note 3.g.4). 20.4 The debt denominated in U.S. dollars for ThCh$1,931,705,893 held by the Group as of December 31, 2020, is related to future cash flow hedges for the Group’s U.S. dollar-linked operating revenues (ThCh$1,585,140,233 as of December 31, 2019) (see Note 3.g.5). The following table details changes in “Reserve for cash flow hedges” as of December 31, 2020, 2019 and 2018, due to exchange differences from this debt: For the years ended December 31, 2020 2019 2018 ThCh$ ThCh$ ThCh$ Balance in hedging reserves (hedging income) at the beginning of the period, net (189,813,409) (127,508,852) (27,168,007) Exchange differences recorded in shareholders' equity, net 98,288,849 (77,347,380) (101,790,308) Exchange differences charged to income, net 31,178,897 15,042,823 12,478,369 Other (OPA 33.57% 02.04.2018 on Enel Generación Chile) — — (11,028,906) Balance in hedging reserves (hedging income) at the end of the period, net (60,345,663) (189,813,409) (127,508,852) 20.5 Other information As of December 31, 2020, the Group has unconditional long-term lines of credit for ThCh$140,143,000 (ThCh$146,268,500 as of December 31, 2019) at its disposal. 20.6 The following tables are the estimates of undiscounted flows by type of financial debt: a) Summary of secured and unsecured bank borrowings Current Non-Current Current Non-Current Maturity Current Maturity Total Non-Current Maturity Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to four years More than five years as of 12-31-2020 One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to four years More than five years as of 12-31-2020 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 845,182 109,110,564 109,955,746 21,608,084 - - - 21,608,084 2,542,588 120,375,278 122,917,866 118,121,339 22,859,559 - - 140,980,898 Chile CLP 4 - 4 - - - - - 5 - 5 - - - - - Totals 845,186 109,110,564 109,955,750 21,608,084 - - - 21,608,084 2,542,593 120,375,278 122,917,871 118,121,339 22,859,559 - - 140,980,898 b) Summary of Guaranteed and Unsecured bonds Non-Current Current Non-Current Maturity Total Current Maturity Total Non-Current Maturity Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2020 One to Three Months Three to twelve months as of 12-31-2019 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 16,734,114 50,202,339 66,936,453 66,936,453 66,936,453 342,771,185 54,388,490 1,256,555,902 1,787,588,483 17,750,370 53,251,108 71,001,478 71,001,479 71,001,479 71,001,479 362,787,755 1,387,871,953 1,963,664,145 Chile U.F. 3,570,187 42,691,404 46,261,591 44,640,241 43,018,892 41,397,542 39,776,193 138,302,651 307,135,519 6,136,022 49,438,671 55,574,693 53,077,463 50,580,233 48,083,003 45,585,772 186,005,287 383,331,758 Totals 20,304,301 92,893,743 113,198,044 111,576,694 109,955,345 384,168,727 94,164,683 1,394,858,553 2,094,724,002 23,886,392 102,689,779 126,576,171 124,078,942 121,581,712 119,084,482 408,373,527 1,573,877,240 2,346,995,903 -

Lease Liabilities

Lease Liabilities	12 Months Ended
	Dec. 31, 2020
LEASE LIABILITIES
Lease Liabilities	21. As of December 31, 2020 and 2019, the balance of lease liabilities is as follows: 12-31-2020 12-31-2019 Lease liability Current Non-Current Current Non-Current Lease liability 7,007,711 44,857,807 5,842,015 47,565,674 Total 7,007,711 44,857,807 5,842,015 47,565,674 21.1. Individualization of Lease Liabilities December 31, 2020 December 31, 2019 Current Non-Current ThCh$ Taxpayer ID Company Country Taxpayer ID Company Country Currency Effective Maturity Less than More Total One to Two to Three to Four to More Total Non- Less than More Total One to Two to Three to Four to More Total Non- 91.081.000-6 Enel Generación Chile S.A. Chile 76.555.400-4 Transelec S.A Chile US$ 6,50% Monthly 613,801 1,900,462 2,514,263 2,677,690 5,044,096 — — — 7,721,786 606,973 1,879,324 2,486,297 2,647,907 2,820,020 5,312,211 — — 10,780,138 91.081.000-6 Enel Generación Chile S.A. Chile 10.579.624-2 Marcelo Alberto Amar Basulto Chile UF 2,06% Monthly 4,631 13,872 18,503 18,828 19,215 19,610 20,014 193,632 271,299 4,067 13,237 17,304 17,966 18,335 18,713 19,097 208,057 282,168 91.081.000-6 Enel Generación Chile S.A. Chile 91.004.000-6 Productos Fernandez S.A. Chile UF 2,09% Monthly 13,012 26,063 39,075 35,386 36,127 36,882 37,654 384,022 530,071 12,399 24,861 37,260 33,755 34,460 35,182 35,917 410,646 549,960 91.081.000-6 Enel Generación Chile S.A. Chile 61.216.000-7 Empresa de Ferrocarriles del Estado Chile UF 1,07% Biannual 1,163 578 1,741 — — — — — — 1,104 557 1,661 1,123 — — — — 1,123 91.081.000-6 Enel Generación Chile S.A. Chile 78.392.580-K Agricola el Bagual LTDA. Chile UF 1,91% Annual 1,205 — 1,205 588 597 — — — 1,185 1,152 — 1,152 564 573 581 — — 1,718 91.081.000-6 Enel Generación Chile S.A. Chile 99.527.200-8 Rentaequipos Tramaca S.A. Chile UF 0,83% Monthly 144,460 — 144,460 — — — — — — 144,436 — 144,436 — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 96.565.580-8 Compañía de Leasing Tattersall S A. Chile UF 0,83% Monthly 9,546 — 9,546 — — — — — — 6,607 — 6,607 — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 8.992.234-8 Roberto Guzman Borquez Chile CLP 1,37% Monthly 367 1,099 1,466 1,483 1,377 — — — 2,860 — — — — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 19.048.130-1 Yaritza Alexandra Bernal Chile UF 1,37% Monthly 379 1,140 1,519 1,538 1,431 — — — 2,969 — — — — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 71.024.400-6 Corporación Comunidades V. Chile CLP 1,07% Monthly 1,034 3,005 4,039 — — — — — — — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.643.660-3 INMOBILIARIA EL ROBLE S.A. Chile UF 1,41% Monthly 19,023 38,171 57,194 — — — — — — 12,589 41,263 53,852 48,574 — — — — 48,574 96.800.570-7 Enel Distribución Chile S.A. Chile 2.859.481-K NURIA FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 2.478.836-9 JUANA FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 3.800.735-1 CARMEN ELVIRA ECHAVARRY DE LA SIERRA Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 5.742.701-9 JORGE FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 5.120.460-3 CARMEN FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 70.015.730-K MUTUAL DE SEGUROS DE CHILE Chile UF 1,91% Monthly 21,619 47,378 68,997 64,225 65,453 66,704 67,977 57,639 321,998 13,990 45,274 59,264 61,373 62,545 63,741 64,959 111,258 363,876 96.800.570-7 Enel Distribución Chile S.A. Chile 76.596.523-3 CAPITAL INVESTI Chile UF 1,91% Monthly 17,765 38,732 56,497 52,505 53,508 54,530 55,571 47,121 263,235 11,479 37,011 48,490 50,173 51,131 52,108 53,104 90,955 297,471 96.800.570-7 Enel Distribución Chile S.A. Chile 77.651.230-3 INVERSIONES TAPIHUE LTDA Chile UF 1,20% Monthly — — — — — — — — — 10,501 — 10,501 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.253.641-2 BCYCLE LATAM S.P.A Chile CLP 6,24% Annual 60,000 — 60,000 16,679 17,719 18,825 — — 53,223 — 20,000 20,000 15,699 16,679 17,719 18,825 — 68,922 96.800.570-7 Enel Distribución Chile S.A. Chile 76.203.089-6 RENTAS INMOBILIARIAS AMANECER S.A. Chile UF 1,56% Monthly 4,563 39,724 44,287 17,803 — — — — 17,803 12,239 24,679 36,918 51,480 14,593 — — — 66,073 96.800.570-7 Enel Distribución Chile S.A. Chile 61.219.000-3 EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A Chile US$ 5,99% Annual — 327,074 327,074 111,940 118,640 125,742 133,269 1,249,650 1,739,241 — 350,227 350,227 114,222 120,634 130,857 132,426 1,476,550 1,974,689 96.800.570-7 Enel Distribución Chile S.A. Chile 85.208.700-5 RENTAEQUIPOS LEASING S.A. Chile UF 1,20% Monthly — — — — — — — — — 774 — 774 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 1,41% Monthly 6,122 3,174 9,296 — — — — — — 1,628 5,363 6,991 4,544 — — — — 4,544 96.800.570-7 Enel Distribución Chile S.A. Chile 76.013.489-9 INVERSIONES DON ISSA LTDA Chile UF 1,67% Monthly 23,746 54,777 78,523 73,305 30,904 — — — 104,209 16,118 51,903 68,021 70,215 71,388 24,186 — — 165,789 96.800.570-7 Enel Distribución Chile S.A. Chile 76.164.095-K INMOBILARIA MIXTO RENTA SpA Chile UF 1,07% Monthly — — — — — — — — — 16,530 — 16,530 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 1,41% Monthly 2,735 — 2,735 — — — — — — 278 3,392 3,670 652 — — — — 652 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 1,41% Monthly 3,734 1,864 5,598 — — — — — — 988 3,231 4,219 2,736 — — — — 2,736 96.800.570-7 Enel Distribución Chile S.A. Chile 99.530.420-1 INMOBILIARIA NIALEM SA Chile UF 0,40% Monthly 42,897 128,922 171,819 172,496 173,183 173,873 43,576 — 563,128 — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.164.095-K INMOBILIARIA MIXTO RENTA SPA Chile UF 0,10% Monthly 27,018 81,066 108,084 9,011 — — — — 9,011 — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 0,10% Monthly 178,447 267,473 445,920 356,941 29,760 — — — 386,701 — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.013.489-9 INVERSIONES DON ISSA LTDA Chile UF 1,87% Monthly 17,661 51,992 69,653 70,469 71,799 73,155 30,888 — 246,311 — — — — — — — — — 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 35,148 35,148 28,589 29,315 30,060 30,824 710,142 828,930 — 36,519 36,519 27,274 27,967 28,677 29,406 723,912 837,236 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 25,341 25,341 20,609 21,133 21,670 22,220 511,934 597,566 — 26,329 26,329 19,661 20,161 20,673 21,198 521,858 603,551 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 29,576 29,576 24,055 24,666 25,293 25,936 597,533 697,483 — 30,727 30,727 22,949 23,532 24,130 24,743 609,121 704,475 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 26,576 26,576 21,613 22,162 22,725 23,303 536,865 626,668 — 27,615 27,615 20,619 21,143 21,680 22,231 547,270 632,943 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 3,334 3,334 2,524 2,591 2,659 2,729 86,937 97,440 — 3,738 3,738 2,793 2,864 2,937 3,011 74,129 85,734 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 47,443 47,443 43,329 44,481 45,664 46,879 1,249,297 1,429,650 — 47,317 47,317 44,688 45,824 46,988 48,182 1,190,338 1,376,020 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 31,209 — 31,209 19,136 19,622 20,121 20,632 508,573 588,084 31,087 — 31,087 18,256 18,720 19,195 19,683 517,037 592,891 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 28,607 — 28,607 16,343 16,772 17,213 17,665 530,780 598,773 29,105 — 29,105 17,619 18,066 18,525 18,996 467,606 540,812 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 634 — 634 401 412 422 433 9,973 11,641 628 — 628 383 393 403 413 10,169 11,761 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 1,982 1,982 716 734 753 772 19,605 22,580 — 1,331 1,331 683 700 718 736 20,591 23,428 76.412.562-2 Enel Green Power Chile S.A. Chile 76.400.311-K Fundo Los Buenos Aires SpA Chile UF 2,54% Annual 109,911 — 109,911 70,851 72,651 74,497 76,389 1,408,792 1,703,180 — 111,365 111,365 67,592 69,309 71,070 72,876 1,450,422 1,731,269 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4,94% Annual 33,580 — 33,580 3,163 3,320 3,484 3,656 98,672 112,295 7,914 — 7,914 2,949 3,095 3,248 3,408 99,995 112,695 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4,94% Annual 38,089 — 38,089 6,968 7,313 7,674 8,054 188,256 218,265 15,877 — 15,877 6,496 6,817 7,154 7,507 185,500 213,474 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4,94% Annual 13,834 — 13,834 1,582 1,660 1,742 1,828 49,336 56,148 3,961 — 3,961 1,474 1,547 1,624 1,704 49,994 56,343 76.412.562-2 Enel Green Power Chile S.A. Chile 4.595.479-K Adriana Castro Parra Chile UF 4,94% Annual 33,522 — 33,522 13,937 14,626 15,349 16,108 363,230 423,250 31,828 — 31,828 12,991 13,633 14,307 15,015 370,630 426,576 76.412.562-2 Enel Green Power Chile S.A. Chile 7.256.021-3 Alicia Freire Hermosilla Chile UF 4,31% Annual 97,512 — 97,512 — — — — — — 93,160 — 93,160 88,809 — — — — 88,809 76.412.562-2 Enel Green Power Chile S.A. Chile 77.378.630-5 Agricola Santa Amalia Chile UF 4,94% Annual 22,346 — 22,346 13,937 14,626 15,349 16,108 363,230 423,250 31,828 — 31,828 12,991 13,633 14,307 15,015 370,631 426,577 76.412.562-2 Enel Green Power Chile S.A. Chile 77.894.990-3 Orafti Chile S.A. Chile UF 4,94% Annual 8,966 — 8,966 6,640 6,968 7,313 7,674 183,027 211,622 15,918 — 15,918 6,190 6,496 6,817 7,154 192,635 219,292 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 4,87% Annual 250,048 — 250,048 243,730 255,590 268,028 281,070 4,158,235 5,206,653 — 472,736 472,736 227,365 238,428 250,031 262,197 4,335,384 5,313,405 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 4,94% Annual 13,703 — 13,703 14,008 14,701 15,428 16,190 513,821 574,148 41,389 — 41,389 13,058 13,704 14,381 15,092 520,042 576,277 76.412.562-2 Enel Green Power Chile S.A. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4,94% Annual 19,817 — 19,817 2,297 2,411 2,530 2,655 67,813 77,706 5,605 — 5,605 2,141 2,247 2,359 2,475 66,716 75,938 76.412.562-2 Enel Green Power Chile S.A. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4,94% Annual 46,780 — 46,780 39,840 41,810 43,877 46,046 1,138,013 1,309,586 95,241 — 95,241 37,137 38,973 40,900 42,922 1,156,961 1,316,893 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4,94% Annual 233,017 — 233,017 3,320 3,484 3,656 3,837 94,835 109,132 7,935 — 7,935 3,095 3,248 3,408 3,577 96,415 109,743 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 70,834 — 70,834 45,685 46,846 48,036 49,256 1,134,814 1,324,637 76,055 — 76,055 43,584 44,691 45,827 46,991 1,156,664 1,337,757 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 91,996 91,996 44,907 46,048 47,218 48,418 1,039,441 1,226,032 — 117,630 117,630 42,842 43,930 45,047 46,191 1,066,692 1,244,702 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 71,401 — 71,401 17,423 17,866 18,320 18,785 463,049 535,443 29,696 — 29,696 16,622 17,044 17,477 17,921 439,871 508,935 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 43,930 43,930 20,454 20,973 21,506 22,052 508,069 593,054 — 29,189 29,189 19,513 20,009 20,517 21,038 548,843 629,920 76.126.507-5 Parque Eólico Talinay Oriente S.A. Chile 76.248.317-3 Agricola Alto Talinay Chile EUR 4,61% Annual 374,657 — 374,657 218,600 228,677 239,219 250,247 2,840,625 3,777,368 — 367,982 367,982 201,806 211,109 220,842 231,022 2,951,326 3,816,105 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile EUR 5,02% Annual — 596,278 596,278 181,888 191,016 200,603 210,671 2,441,450 3,225,628 — 260,072 260,072 167,261 175,655 184,471 193,729 2,532,578 3,253,694 76.321.458-3 Almeyda Solar SPA Chile 76.259.106-5 Inmobiliaria Terra Australis Tres S.A. Chile UF 6,39% Biannual 32,757 19,025 51,782 39,084 40,507 41,981 43,509 1,177,273 1,342,354 — 46,597 46,597 54,543 55,929 57,350 58,807 1,012,677 1,239,306 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 6,39% Annual — 99,022 99,022 74,302 76,190 78,126 80,111 1,845,677 2,154,406 — 98,189 98,189 70,885 72,686 74,533 76,427 1,881,835 2,176,366 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,23% Annual 47,369 — 47,369 39,288 40,165 41,061 41,978 224,377 386,869 48,681 — 48,681 37,594 38,433 39,291 40,168 258,481 413,967 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,36% Annual 32,932 — 32,932 23,945 24,511 25,090 25,683 292,688 391,917 32,269 — 32,269 22,884 23,424 23,978 24,545 311,762 406,593 76.321.458-3 Almeyda Solar SPA Chile 79.938.160-5 Soc. Serv. Com.. Multiservice F.L. Chile UF 2,94% Annual — 101,743 101,743 36,866 37,949 39,065 40,213 963,970 1,118,063 — 35,334 35,334 35,034 36,064 37,124 38,215 981,212 1,127,649 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 26,523 26,523 10,430 11,006 11,613 12,254 571,751 617,054 — 34,408 34,408 25,058 25,694 26,347 27,017 621,989 726,105 76.536.353-5 Enel Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 0,10% Monthly 2,710 4,065 6,775 5,426 476 — — — 5,902 — — — — — — — — — 76.536.353-5 Enel Chile S.A. Chile 78.822.300-5 Inversiones Cardinal S.A Chile UF 1,20% Monthly — — — — — — — — — 9,281 24,801 34,082 — — — — — — 76.536.353-5 Enel Chile S.A. Chile 78.822.300-5 Inversiones Cardinal S.A Chile UF 1,20% Monthly — — — — — — — — — 9,714 19,465 29,179 — — — — — — Total Leasing 2,829,163 4,178,548 7,007,711 5,036,773 7,067,087 2,026,666 1,903,134 28,824,147 44,857,807 1,512,244 4,329,771 5,842,015 4,515,822 4,565,526 7,061,634 1,783,940 29,638,752 47,565,674 21.2. Undiscounted debt cash flows. Undiscounted debt cash flows are detailed as follows: Non-Current Current Non-Current Maturity Total Current Maturity Total Non-Current Maturity Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2020 One to Three Months Three to twelve months as of 12-31-2019 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 805,609 2,544,526 3,350,135 3,343,654 5,400,991 227,6 22 219,295 1,598,935 10,790,497 859,011 2,802,479 3,661,490 3,570,048 3,554,711 5,731,772 258,317 2,063,704 15,178,552 Chile EUR 427,451 - 427,451 582,405 563,152 543,900 524,648 2,334,458 4,548,563 80,971 240,372 321,343 499,678 485,713 471,749 457,785 2,453,454 4,368,379 Chile UF 2,058,130 2,175,978 4,234,108 3,289,984 2,954,856 2,808,037 2,598,818 30,660,789 42,312,484 821,084 2,293,383 3,114,467 2,895,029 2,523,717 2,462,599 2,412,029 30,885,469 41,178,843 Chile Ch$ 24,156 - 24,156 20,234 19,173 18,112 - - 57,519 1,180 23,113 24,293 17,847 16,967 16,087 15,207 - 66,108 Totals 3,315,346 4,720,504 8,035,850 7,236,277 8,938,172 3,597,671 3,342,761 34,594,182 57,709,063 1,762,246 5,359,347 7,121,593 6,982,602 6,581,108 8,682,207 3,143,338 35,402,627 60,791,882

Risk Management Policy

Risk Management Policy	12 Months Ended
	Dec. 31, 2020
RISK MANAGEMENT POLICY
Risk Management Policy	22. RISK MANAGEMENT POLICY The Group companies follow the guidelines of the Risk Management Control System (SCGR) defined at the parent level (Enel SpA), which establishes rules for managing risks through the respective standards, procedures, systems, etc., applicable to the different levels of the Group companies, in the ongoing business risk identification, analysis, evaluation, treatment, and communication processes. These are approved by the Enel SpA Board of Directors, which includes a Risk and Controls Committee responsible for supporting the Enel Chile Board’s evaluation and decisions regarding internal control and risk management system, as well as those related to the approval of periodic financial statements. To comply with this, each company has its own specific Control Management and Risk Management policy, which is reviewed and approved at the beginning of each year by the Enel Chile Board of Directors, observing and applying all local requirements in terms of the risk culture. The Company seeks protection against all risks that could affect the achievement of the business objectives. In January 2020, a new risk taxonomy has been approved for the Enel Group, which considers 6 macro-categories and 37 sub-categories. The Enel Group risk management system considers three lines of action (defense) to obtain effective and efficient risk management and controls. Each of these three “lines” plays a different role within the organization's broader governance structure (Business and Internal Control areas acting as the first line, Risk Control as the second line, and Internal Audit as the third line of defense). Each line of defense has the obligation to report to and keep upper Management and the Directors up-to-date on risk management. In this sense, the first and second lines of defense report to upper Management, and the second and third lines report to the Board of Directors. Within each of the Group's companies, the risk management is decentralized. Each manager responsible for the operating process in which the risk arises is also responsible for treating the risk and adopting risk control and mitigation measures. 22.1 Interest rate risk Changes in interest rates affect the fair value of assets and liabilities bearing fixed interest rates, as well as, the expected future cash flows of assets and liabilities subject to floating interest rates. The objective of managing interest rate risk exposure is to achieve a balance in the debt structure to minimize the cost of debt with reduced volatility in profit or loss. The comparative structure of the Group's financial debt, according to the fixed and/or protected interest rate on gross debt, after the contracted derivatives, is the following: For the years ended December 31, 2020 2019 % % Fixed interest rate 99% 98% Depending on the Group's estimates and the objectives of the debt structure, hedging transactions are conducted by entering into derivative contracts to mitigate these risks. Risk control through specific processes and indicators allows companies to limit possible adverse financial impacts and, at the same time, optimize the debt structure with an adequate degree of flexibility. In this sense, the volatility that characterized the financial markets during the first phase of the pandemic, in many cases went back to pre-COVID-19 levels and was offset by effective risk mitigation actions using derivative financial instruments. 22.2 Exchange rate risk Exchange rate risks involve basically the following transactions: - Debt taken on by the Group’s companies that is denominated in a currency other than the currency in which its cash flows are indexed. - Payments to be made in a currency other than that in which its cash flows are indexed for the acquisition of project-related materials and for corporate insurance policies. - Income in Group companies directly linked to changes in currencies other than the currency of its cash flows. In order to mitigate foreign currency risk, the Group seeks to maintain a balance between flows indexed to US$ or local currencies, if any, and the levels of assets and liabilities denominated in such currencies. The objective is to minimize the exposure to variability in cash flows that are attributable to foreign exchange risk. The hedging instruments currently being used to comply with the policy are currency swaps and forward exchange contracts. During the last quarter of 2020, exchange rate risk management continued in the context of complying with the previously mentioned risk management policy, without difficulty to access the derivatives market. It should be noted that the volatility that characterized the financial markets during the first phase of the pandemic, in many cases went back to pre-COVID-19 levels and was offset by risk mitigation actions through derivative financial instruments. 17.3 Commodities risk The Group has a risk exposure to price fluctuations in certain commodities, basically due to: - Purchases of fuel used to generate electricity. - Energy purchase/sale transactions that take place in local markets. To reduce the risk in situations of extreme drought, the Group has designed a commercial policy that defines the levels of sales commitments in line with the capacity of its generating power plants in a dry year. It also includes risk mitigation terms in certain contracts with unregulated customers and with regulated customers subject to long-term tender processes, establishing indexation polynomials that allow for reducing commodities exposure risk. Considering the operating conditions faced by the power generation market, with drought and highly volatile commodity prices on international markets, the Company is constantly evaluating the use of hedging to minimize the impacts that these price fluctuations have on its results. As of December 31, 2020, there were current transactions for 1,782 kBbl from Brent to be settled in 2021 and 16.8 Tbtu from Henry Hub to be settled in 2021. As of December 31, 2019, there were current transactions for 1,412 kTon from API2 to be settled in 2020, 1,059 kBbl from Brent to be settled in 2020, and 4.79 TBtu from HH to be settled in 2020. Depending on the Group’s permanently updated operating conditions, these hedges may be modified, or include other commodities. Thanks to the mitigation strategies implemented, the Group was able to minimize the effects of basic product price volatility on the results of the fourth quarter of 2020. 22.4 The Group maintains a liquidity risk management policy that consists of entering into long-term committed banking facilities and temporary financial investments for amounts that cover the projected needs over a period of time that is determined based on the situation and expectations for debt and capital markets. The projected needs mentioned above include maturities of financial debt net of financial derivatives. For further details regarding the features and conditions of financial obligations and financial derivatives (see Notes 20 and 23). As of December 31, 2020, the Group recorded liquidity in the amount of ThCh$ 332,036,013 in cash and cash equivalents and ThCh$140,643,000 in unconditionally available long-term lines of credit. As of December 31, 2019, the Group recorded liquidity of ThCh$235,684,500 in cash and cash equivalents and ThCh$146,268,500 in unconditionally available long-term lines of credit. 22.5 Credit risk The Group closely monitors its credit risk. Trade receivables: The credit risk for receivables from the Group’s commercial activity has historically been very low, due to the short-term period of collections from customers, resulting in non-significant cumulative receivables amounts. This situation applies to the electricity generating and distribution lines of business. In the Company’s electricity generating business, regulations allow disconnecting the energy service to customers in payment default, and most contracts have termination clauses for payment default. The Company monitors its credit risk on an ongoing basis and measures quantitatively its maximum exposure to payment default risk, which, as stated above, is very low. In the Company’s electricity distribution company, the disconnection of energy service to customers in payment default is applied in accordance with current regulations. This improves the ease of the process for evaluating and controlling credit risk, which is also limited. However, the action to disconnect energy service to customers recording payment default was suspended by Enel Distribución Chile from March 2020 to support its most vulnerable customers, and subsequently, to comply with Law No. 21,249 and Law No. 21,301 which were enacted in August 2020 and December 2020, respectively, and will remain in force until May 2021 (see Note 4.b.iv). Regarding the impact of COVID-19, the results of specific internal analyses did not reveal significant statistical correlations between the main economic indicators (GDP, unemployment rate, etc.) and solvency. However, impairment losses have increased in 2020 as a consequence of an increase in expected credit losses from counterparties (see Notes 3.g.3 and 9.d). Financial assets: Cash surpluses are invested in the highest-rated local and foreign financial entities (with risk rating equivalent to investment grade where possible) with thresholds established for each entity. Banks that have received investment grade ratings from the three major international rating agencies (Moody’s, S&P, and Fitch) are selected for making investments. Investments may be supported through Chilean treasury bonds and/or commercial paper issued by the highest rated banks; the latter are preferable as they offer higher returns (always in line with current investment policies). It is noted that the downturn in the macroeconomic scenario due to COVID-19 had no significant impact on counterparties’ credit quality. 22.6 Risk measurement The Group measures the Value at Risk (VaR) of its debt positions and financial derivatives, in order to monitor the risk assumed by the company, thereby reducing volatility in the income statement. The portfolio of positions included for purposes of calculating the present VAR include: - Financial debt. - Hedge derivatives for debt. The VaR determined represents the potential variation in value of the portfolio of positions described above in a quarter with a 95% confidence level. To determine the VaR, we take into account the volatility of the risk variables affecting the value of the portfolio of positions, including: - U.S. dollar LIBOR interest rate. - The exchange rates of the various currencies used in the calculation. The calculation of VaR is based on generating possible future scenarios (at one quarter) of market values of the risk variables based on scenarios based on real observations for the same period (at one quarter) during five years. The quarter 95% confidence VaR number is calculated as the 5% percentile most adverse of the quarterly possible fluctuations. Taking into consideration the assumptions previously described, the quarter VaR of the previously discussed positions was ThCh$308,778,352. This value represents the potential increase of the Debt and Derivatives’ Portfolio, thus these VaR are inherently related, among other factors, to the Portfolio’s value at each quarter end.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2020
FINANCIAL INSTRUMENTS
Financial Instruments	23. FINANCIAL INSTRUMENTS 23.1 Financial instruments classified by type and category a) The detail of financial assets, classified by type and category, as of December 31, 2020 and 2019 is as follows: 12-31-2020 Financial assets at fair value with changes in results Financial assets measured at amortized cost Financial assets at fair value with changes in other comprehensive income Financial ThCh$ ThCh$ ThCh$ ThCh$ Equity instruments — — 127,854 — Trade and other accounts receivable — 592,856,895 — — Derivative instruments 3,033,502 — 18,387,261 1,000,964 Other financial assets — 808,692 — — Total Current 3,033,502 593,665,587 18,515,115 1,000,964 Equity instruments — — 2,326,480 — Trade and other accounts receivable — 493,375,481 — — Derivative instruments 1,911,233 — — 16,422,737 Other financial assets — — — — Total Non-current 1,911,233 493,375,481 2,326,480 16,422,737 Total 4,944,735 1,087,041,068 20,841,595 17,423,701 12-31-2019 Financial assets at fair value with changes in results Financial assets measured at amortized cost Financial assets at fair value with changes in other comprehensive income Financial ThCh$ ThCh$ ThCh$ ThCh$ Equity instruments — — 127,854 — Trade and other accounts receivable — 576,740,203 — — Derivative instruments 1,618,318 — 1,323,556 277,702 Other financial assets — 860,425 — — Total Current 1,618,318 577,600,628 1,451,410 277,702 Equity instruments — — 2,349,221 — Trade and other accounts receivable — 347,981,527 — — Derivative instruments — — — 4,871,397 Other financial assets — 2 — — Total Non-current — 347,981,529 2,349,221 4,871,397 Total 1,618,318 925,582,157 3,800,631 5,149,099 The carrying amount of trade accounts receivable and payable approximates their fair value. b) The detail of financial liabilities, classified by type and category, as of December 31, 2020 and 2019 is as follows: 12-31-2020 Financial liabilities at fair value with changes in results Financial liabilities measured at amortized cost Financial liabilities at fair value with changes in other comprehensive income Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 152,076,992 — — Trade and other accounts payable — 757,965,390 — — Derivative instruments 4,841,020 — 45,543 581,129 Other financial liabilities — 7,007,711 — — Total Current 4,841,020 917,050,093 45,543 581,129 Interest-bearing loans — 1,467,421,655 — — Trade and other accounts payable — 1,281,254,521 — — Derivative instruments — — — 16,167,471 Other financial liabilities — 44,857,807 — — Total Non-current — 2,793,533,983 — 16,167,471 Total 4,841,020 3,710,584,076 45,543 16,748,600 12-31-2019 Financial liabilities at fair value with changes in results Financial liabilities measured at amortized cost Financial liabilities at fair value with changes in other comprehensive income Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 164,404,334 — — Trade and other accounts payable — 750,103,757 — — Derivative instruments 2,026,476 — 8,924,831 48,225,766 Other financial liabilities — — — — Total Current 2,026,476 914,508,091 8,924,831 48,225,766 Interest-bearing loans — 1,714,837,545 — — Trade and other accounts payable — 840,623,569 — — Other financial liabilities 124,048 — — 25,208,326 Total Non-current 124,048 2,555,461,114 — 25,208,326 Total 2,150,524 3,469,969,205 8,924,831 73,434,092 23.2 The risk management policy of the Group uses primarily interest rate and foreign exchange rate derivatives to hedge its exposure to interest rate and foreign currency risks. The Company classifies its hedges as follows: - Cash flow hedges: Those that hedge the cash flows of the underlying hedged item. - Fair value hedges: Those that hedge the fair value of the underlying hedged item. - Non-hedge derivatives: Financial derivatives that do not meet the requirements established by IFRS to be designated as hedging instruments are recognized at fair value through profit or loss (financial assets held for trading). a) Assets and liabilities for hedge derivative instruments As of December 31, 2020 and 2019, financial derivative qualifying as hedging instruments resulted in recognition of the following assets and liabilities in the statement of financial position: 12-31-2020 Assets Liabilities Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: — — 1,947,377 12,944,130 Cash flow hedge — — 1,947,377 12,944,130 Exchange rate hedge: 1,000,964 16,422,737 3,451,487 3,223,341 Cash flow hedge 1,000,964 16,422,737 3,451,487 3,223,341 Total 1,000,964 16,422,737 5,398,864 16,167,471 12-31-2019 Assets Liabilities Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: 322,316 8,447 — 7,743,401 Cash flow hedge 322,316 8,447 — 7,743,401 Exchange rate hedge: — 4,862,950 48,225,766 17,464,925 Cash flow hedge — 4,862,950 48,225,766 17,464,925 Total 322,316 4,871,397 48,225,766 25,208,326 - General information Related to Hedging Derivative Instruments Hedging derivative instruments and their corresponding hedged instruments are shown in the following table: Fair value of Fair value of Type of Description Description hedged item hedged item Type hedge of hedged of hedged 12-31-2020 12-31-2019 of instrument risk item ThCh$ ThCh$ risk hedged SWAP Interest rate Others — (699,158) Cash flow SWAP Exchange rate Unsecured obligations (bonds) 12,763,777 (9,530,240) Cash flow SWAP Interest rate Loans with Related Companies (12,944,129) (6,991,184) Cash flow SWAP Interest rate Bank loans (1,947,377) 277,703 Cash flow FORWARD Exchange rate Operational Income (1,967,328) (51,297,500) Cash flow FORWARD Interest rate Others (77,558) — Cash flow FORWARD Exchange rate Other 29,981 — Cash flow As of December 31, 2020, and 2019, the Group has not recognized significant gains or losses for ineffective cash flow hedges. At the reporting date, the Group did not establish fair value hedging relationships. b) As of December 31, 2020 and 2019, financial derivative transactions recognized at fair value through profit or loss, resulted in the recognition of the following liabilities in the statement of financial position: 12-31-2020 12-31-2019 Current Current Liabilities Non-Current Non-Current Liabilities Current Current Liabilities Non-Current Non-Current Liabilities ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Non-hedging derivative instrument 1,414,895 23,285 1,911,233 — — 2,026,476 — 124,048 Total 1,414,895 23,285 1,911,233 — — 2,026,476 — 124,048 These derivative instruments correspond to forward contracts entered into by the Group, whose purpose is to hedge the exchange rate risk related to future obligations arising from civil works contracts linked to the construction of the Los Cóndores Plant. Although these hedges have an economic substance, they do not qualify for hedge accounting because they do not strictly comply with the hedge accounting requirements established in IFRS 9 Financial Instruments. c) The following table sets forth the fair value of hedging and non-hedging derivatives entered into by the Group as well as the remaining contractual maturities as of December 31, 2020 and 2019. 12-31-2020 Notional Amount Fair value Less than 1 year 1-2 years 2-3 years 3-4 years 4-5 years Total Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: (14,891,507) 106,642,500 284,380,000 — — — 391,022,500 Cash flow hedge (14,891,507) 106,642,500 284,380,000 — — — 391,022,500 Exchange rate hedge: 10,748,873 143,449,971 3,390 — 504,391,045 95,129,590 742,973,996 Cash flow hedge 10,748,873 143,449,971 3,390 — 504,391,045 95,129,590 742,973,996 Derivatives not designated for hedge accounting 3,302,843 30,063,763 21,189,518 8,742,828 285,368 — 60,281,477 Total (839,791) 280,156,234 305,572,908 8,742,828 504,676,413 95,129,590 1,194,277,973 12-31-2019 Notional Amount Fair value Less than 1 year 1-2 years 2-3 years 3-4 years 4-5 years Total Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: (7,412,638) 112,311,000 112,311,000 299,496,000 — — 524,118,000 Cash flow hedge (7,412,638) 112,311,000 112,311,000 299,496,000 — — 524,118,000 Exchange rate hedge: (60,827,741) 490,799,070 40,581,708 — — 517,637,686 1,049,018,464 Cash flow hedge (60,827,741) 490,799,070 40,581,708 — — 517,637,686 1,049,018,464 Derivatives not designated for hedge accounting (2,150,524) 31,746,086 2,061,840 — — — 33,807,926 Total (70,390,903) 634,856,156 154,954,548 299,496,000 — 517,637,686 1,606,944,390 The contractual maturities of hedging and non-hedging derivatives do not represent the Group’s total risk exposure, as the amounts presented in the above tables have been drawn up based on undiscounted contractual cash inflows and outflows for their settlement. 23.3 Fair value hierarch Financial instruments recognized at fair value in the consolidated statement of financial position are classified based on the hierarchies described in Note 3.h. The following table presents financial assets and liabilities measured at fair value as of December 31, 2020 and 2019: 6 Fair Value Measured at End of Reporting Period Using: 12-31-2020 Level 1 Level 2 Level 3 Financial Instruments Measured at Fair Value ThCh$ ThCh$ ThCh$ ThCh$ Financial Assets: Financial derivatives designated as cash flow hedges 17,423,701 — 17,423,701 — Financial derivatives not designated for hedge accounting 3,326,128 — 3,326,128 — Derivatives of commodities designated as non-hedging of cash flow at fair value through profit or loss 1,618,607 — 1,618,607 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 18,387,261 — 18,387,261 Equity instruments at fair value with changes in other comprehensive income 2,454,334 2,326,480 127,854 — Total 43,210,031 2,326,480 40,883,551 — Financial Liabilities: Financial derivatives designated as cash flow hedges 21,566,335 — 21,566,335 — Financial derivatives not designated for hedge accounting 23,285 — 23,285 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 45,543 — 45,543 — Total 21,635,163 — 21,635,163 — Fair Value Measured at End of Reporting Period Using: 12-31-2019 Level 1 Level 2 Level 3 Financial Instruments Measured at Fair Value ThCh$ ThCh$ ThCh$ ThCh$ Financial Assets: Financial derivatives designated as cash flow hedges 5,193,713 — 5,193,713 — Derivatives of commodities designated as non-hedging of cash flow at fair value through profit or loss 1,573,704 — 1,573,704 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 1,323,556 — 1,323,556 — Equity instruments at fair value with changes in other comprehensive income 2,477,077 2,349,223 127,854 Total 10,568,050 2,349,223 8,218,827 — Financial Liabilities: Financial derivatives designated as cash flow hedges 73,434,092 — 73,434,092 — Financial derivatives not designated for hedge accounting 2,150,524 — 2,150,524 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 8,924,831 — 8,924,831 — Total 84,509,447 — 84,509,447 —

Current and Non-Current Payable

Current and Non-Current Payables	12 Months Ended
	Dec. 31, 2020
CURRENT AND NON-CURRENT PAYABLES
Current and Non-Current Payables	24. The detail of Trade and Other Current Payables as of December 31, 2020 and 2019 is as follows: Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Trade and Other Payables ThCh$ ThCh$ ThCh$ ThCh$ Energy suppliers (1) 135,817,661 178,153,813 112,895,627 53,941,373 Fuel and gas suppliers 36,735,748 55,179,023 — — Payables for goods and services 153,883,621 183,848,556 487 487 Payables for assets acquisition 251,679,169 100,307,602 4,233,657 2,281,051 Subtotal Trade Payables 578,116,199 517,488,994 117,129,771 56,222,911 Other Payables Dividends payable to third parties 5,755,000 41,582,444 — — Accounts payables to employees 35,256,939 33,495,586 — — Other payables 8,829,884 6,696,184 80,288 27,174 Subtotal other current payables 49,841,823 81,774,214 80,288 27,174 Total 627,958,022 599,263,208 117,210,059 56,250,085 (1) The description of the liquidity risk management policy is detailed in Note 22.4. The details of trade payables, both current and past due as of December 31, 2020 and 2019 are presented in Appendix 3.

Provisions

Provisions	12 Months Ended
	Dec. 31, 2020
PROVISIONS
Provisions	25. PROVISIONS a) The detail of provisions as of December 31, 2020 and 2019, is detailed as follows: Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Provisions ThCh$ ThCh$ ThCh$ ThCh$ Provision for legal proceedings 1,492,140 2,320,885 14,843,034 11,210,305 Decommissioning or restoration (*) — — 191,867,939 160,649,977 Other provisions 1,942,664 1,745,080 3,530,698 — Total 3,434,804 4,065,965 210,241,671 171,860,282 (1) See Note 3.a. Considering the new environmental regulation in Chile, the provision for decommissioning arises from recent clarifications concerning the scope of rights and obligations related to environmental permits. Therefore, the allowance has been adjusted to reflect the best estimate at the closing date of these financial statements. The expected timing and amount of any cash outflows related to the above provisions is uncertain and depends on the resolution of specific matters related to each one. For example, specifically for litigation, this depends on the final resolution of the corresponding legal claim. Management believes that provisions recognized in the financial statements cover the related risks appropriately. Changes in provisions as of December 31, 2020 and 2019, are as follows: Legal Decommissioning or Environmental Issues and Other Provisions Total Changes in Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance as of January 1, 2020 13,531,190 160,649,977 1,745,080 175,926,247 Increase (decrease) in existing provisions (1) 5,905,427 29,964,811 3,728,282 39,598,520 Provisions used (1,471,151) (1,743,534) — (3,214,685) Reversal of unused provision (1,474,149) — — (1,474,149) Increase from adjustment to time value of money (2) — 4,115,292 — 4,115,292 Foreign currency translation (156,143) (1,118,607) — (1,274,750) Total changes in provisions 2,803,984 31,217,962 3,728,282 37,750,228 Balance as of December 31, 2020 16,335,174 191,867,939 5,473,362 213,676,475 Legal Decommissioning or Environment Total Changes in Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance as of January 1, 2019 17,352,876 92,402,517 1,704,768 111,460,161 Increase (decrease) in existing provisions (1) 3,749,833 62,688,286 40,168 66,478,287 Provisions used (3,946,144) (31,436) (11) (3,977,591) Reversal of unused provision (3,612,445) — — (3,612,445) Increase from adjustment to time value of money (2) — 4,356,650 — 4,356,650 Foreign currency translation (12,930) 1,233,960 155 1,221,185 Total changes in provisions (3,821,686) 68,247,460 40,312 64,466,086 Balance as of December 31, 2019 13,531,190 160,649,977 1,745,080 175,926,247 1) The increase in the allowances for decommissioning or restoration during 2020 is explained primarily by the process to closure the Bocamina II plant’s operations. This resulted in an increase in the present value of the obligation, as a consequence of the adjustment to the previously established terms for making the disbursements, along with performing an update to the estimated values thereof (see Note 16.c.iv). 2) The variation in allowances for decommissioning or restoration during the year ended December 31, 2019 is primarily due to the increase in expected disbursements for the early closure of the Tarapacá and Bocamina I plants, framed within the Group's agreement with the Ministry of Energy to progressively cease operations of coal-fired generation plants (see Note 16.c.iv); and, to a lesser degree, an increase in the present value of provisions, due to a relevant decrease in the discount rates applied. 3) Corresponds to a financial restatement, see Note 34.

Post Employee Benefit Obligatio

Post Employee Benefit Obligations	12 Months Ended
	Dec. 31, 2020
POST EMPLOYEE BENEFIT OBLIGATIONS
Post Employee Benefit Obligations	26. POST-EMPLOYMENT BENEFIT OBLIGATIONS. 26.1 General information: Enel Chile S.A. and certain subsidiaries granted various post-employment benefits to either all or certain active or retired employees. These benefits are calculated and recognized in the financial statements according to the criteria described in Note 3.m.1, and include primarily the following: Defined benefit plans: · Employee severance indemnities: The beneficiary receives a certain number of contractual salaries on the date of his retirement. This benefit becomes enforceable once the employee has provided services for a minimum period that, depending on the company, ranges from 5 to 15 years. · Complementary pension: The beneficiary is entitled to receive a monthly amount that supplements the pension obtained from the respective social security system. · Electricity supply: The beneficiary receives a monthly bonus, which covers a part of the billing for their home consumption. · Healthcare benefits: The beneficiary receives additional coverage that supplements the coverage provided by the social security regime. 1.2 Details, changes and presentation in financial statements: a) The post-employment obligations associated with defined benefits plans and the related plan assets as of December 31, 2020 and 2019. 12-31-2020 12-31-2019 ThCh$ ThCh$ Employee severance indemnities 50,011,279 42,697,317 Complementary Pension 18,896,906 17,853,600 Health Plans 3,145,989 3,090,670 Energy Supply Plans 3,484,091 2,521,903 Total post-employment obligations, net 75,538,265 66,163,490 The increase in post-employment liabilities is explained primarily by the adjustment to the discount rate applied by the Group at the year ended December 31, 2020, due to the decrease in this actuarial assumption (by 80 base points from the close of 2019), based on changes in the macroeconomic and financial environments due to the COVID-19 pandemic (see Notes 2.3 and 35.5). a) The following amounts were recognized in the consolidated statement of comprehensive income for the years ended December 31, 2020, 2019 and 2018. For the years ended December 31, Expense Recognized in 2020 2019 2018 Comprehensive Income ThCh$ ThCh$ ThCh$ Cost of current defined benefit plan service (2,132,231) (1,928,868) (1,920,262) Defined benefit plan interest cost (1) (2,146,386) (2,639,738) (2,750,376) Past service cost — (1,224,527) 39,060 Expenses recognized in Profit or Loss (4,278,617) (5,793,133) (4,631,578) Gains (losses) from remeasurement of defined benefit plans (8,545,834) (7,777,204) 37,881 Total expense recognized in the Statement of Comprehensive Income (12,824,451) (13,570,337) (4,593,697) (1) See Note 34 c) The balance and changes in post-employment defined benefit obligations as of December 31, 2020 and 2019 are as follows: Actuarial Value of Post-employment Obligations ThCh$ Balance at January 1, 2019 56,602,664 Current service cost 1,928,868 Interest cost 2,639,738 Actuarial (gains) losses from changes in financial assumptions 5,724,985 Actuarial (gains) losses from changes in experience adjustments 2,052,219 Foreign currency translation 9,786 Past Service Cost Defined Benefit Plan Obligation 1,224,527 Contributions paid (4,068,988) Transfer of employees 49,691 Balance at December 31, 2019 66,163,490 Current service cost 2,132,231 Interest cost 2,146,386 Actuarial (gains) losses from changes in financial assumptions 4,695,927 Actuarial (gains) losses from changes in experience adjustments 3,849,907 Foreign currency translation 102,073 Contributions paid (3,335,366) Transfer of employees (216,383) Closing balance December 31, 2020 75,538,265 The Group makes no contributions to funds for financing the payment of these benefits. 26.3 Other disclosures: · Actuarial assumptions: As of December 31, 2020, and 2019, the following assumptions were used in the actuarial calculation of defined benefit plans: 12-31-2020 12-31-2019 Discount rates used 2.60% 3.40% Expected rate of salary increases 3.80% 3.80% Turnover rate 7.10% 5.24% Mortality tables CB-H-2014 and RV-M-2014 CB-H-2014 / RV-M-2014 · Sensitivity: As of December 31, 2020, the sensitivity of the value of the actuarial liability for post-employment benefits to variations of 100 basis points in the discount rate assumes a decrease of ThCh$5,602,670 (ThCh$5,330,365 as of December 31, 2019) if the rate rises and an increase of ThCh$6,136,668 (ThCh$5,829,095 as of December 31, 2019) if the rate falls. · Defined contribution: According to the available estimate, the disbursements foreseen to cover the defined benefit plans for 2021 amount to ThCh$8,445,218. · Length of commitments Enel Chile´s obligations have a weighted average length of 7 .98 years and the outflows of benefits for the next 10 years is expected to be as follows: Years ThCh$ 1 8,445,218 2 6,484,023 3 5,441,166 4 6,022,293 5 5,467,563 6 to10 25,094,378

Equity

Equity	12 Months Ended
	Dec. 31, 2020
Disclosure Of Shareholders Equity Abstract
Equity	27. EQUITY 27.1. 27.1.1. Subscribed and paid capital and number of shares The issued capital of Enel Chile for the years ended December 31, 2020 and 2019 is ThCh$3,882,103,470 divided into 69,166,557,220 authorized, subscribed and paid shares. All of the shares issued by the Company are subscribed and paid, and they are listed for trade on the Bolsa de Comercio de Santiago de Chile, the Bolsa Electrónica de Chile, and the New York Stock Exchange (NYSE). 27.1.2. Treasury shares As of December 31, 2020, and 2019, there are no treasury shares in the Group's portfolio. As of December 31, 2018, the treasury shares totaled ThCh$72,388,009 and represented 967,520,597 shares, which were acquired as a result of the merger with Enel Green Power Latin América Ltda. (“EGPL”). On April 29, 2019, these shares were legally deducted from the number of shares issued, as they had not been sold within one year from the date of acquisition, in accordance with the provisions of Article 27 of the Corporations Law No. 18,046. 27.1.3. Due to the corporate reorganization process (as described in Note 5), the Company increased its share capital in the voluntary tender offer of the shares of its subsidiary Enel Generación Chile and the merger with the company EGPL, in which the renewable assets of Enel SpA were incorporated into Enel Chile. The phases of this process are described below. - During the tender offer period between February 16 and March 22, 2018, the Company received acceptances and sale orders for a total of 2,582,336,287 shares of Enel Generación Chile and 5,691,996 ADSs equivalent to 170,759,880 shares of Enel Generación Chile; accordingly, the Company increased its interest and acquired 2,753,096,167 shares issued by Enel Generación Chile. According to the terms and conditions established in the transaction, the shareholders of Enel Generación Chile who agreed to sell their shares, would allocate 40% of the established purchase price (Ch$590 per share) to the subscription of newly issued shares of Enel Chile, thus receiving, in exchange for that 40%, 2.87807 shares in Enel Chile for each share issued by Enel Generación Chile and sold in the tender offer. By virtue of the above, the shareholders of Enel Generación Chile received Ch$1,624,326,738,530 in cash, divided into Ch$1,523,578,409,330 for Chilean shareholders and Ch$100,748,329,200 for foreign shareholders. Likewise, these shareholders subscribed shares of Enel Chile for a total of Ch$649,730,695,412 equivalent to 7,923,600,070 shares. - According to the provisions of the Public Corporations Law, the Company's existing shareholders have a preferential right to subscribe the shares issued in a capital increase, in proportion to their holdings in the Company. Any shareholder existing at the time of the Enel Chile capital increase, could exercise such right by paying exclusively in cash for those shares. On March 16, 2018, the preferential subscription option was exercised for 47,860,124 shares, paying a price of Ch$82.00 for each share, thus increasing Capital by Ch$3,924,530,168. - The reorganization concluded with the merger of EGPL and Enel Chile, which occurred once the tender offer was declared successful and became effective on April 2, 2018. As a result of this merger, Enel Chile’s share capital increased by Ch$1,071,727,278,668, , equivalent to 13,069,844,862 shares, corresponding to 827,205,371 shares of EGPL owned by Enel SpA, at an exchange rate of 15.8 Enel Chile shares for each EGPL share. Changes in the number of Enel Chile’s shares as a result of the abovementioned corporate reorganization process are detailed as follows: Number of outstanding shares of Enel Chile prior to the reorganization Number of shares Ratio for exchange of shares Number of shares Public Tender Offer Shares of Enel Generation (1): Purchased shares - national market 2.88 Purchased shares - ADS 2.88 491,455,472 Total Public Tender Offer for Shares 7,923,600,070 Enel Chile Preemtive right shares (2): Shares paid for by shareholders Total Preemtive Rights Merger with EGPL (3): Shares issued to Enel SpA 15.8 13,069,844,862 Total Merger with EGPL 13,069,844,862 Repurchase of shares (4): Withdrawal Rights exercised by minority shareholders of Enel Chile Total repurchase of shares Number of issued shares in Enel Chile after merger Total number of shares issued Total number of treasury shares Number of issued shares in Enel Chile after merger (1) The total amount for the issuance of these new shares was ThCh$649,730,695. (2) The payment made by the minority shareholders of Enel Chile was ThUS$3,924,530. (3) The valuation of the capital increase due to the merger was ThCh$1,071,727,279. (4) The total amount paid for the repurchase of shares was ThCh$72,388,009. 27.2 Dividends Dividend No. Type of Agreement Payment Date Total Amount M$ Pesos per Charged to Fiscal 4 Interim 12-20-2017 01-26-2018 37,134,944 0.75642 2017 5 Final 04-25-2018 05-18-2018 155,025,509 2.24134 2017 6 Interim 11-29-2018 01-25-2019 31,288,371 0.45236 2018 7 Final 04-29-2019 05-17-2019 185,737,592 2.68537 2018 8 Interim 11-26-2019 01-31-2020 30,933,437 0.44723 2019 9 Final 04-29-2020 05-27-2020 146,758,726 2.12182 2019 9 Eventual 04-29-2020 05-27-2020 114,883,119 1.66096 (1) (1) On April 29, 2020, the distribution of the obligatory minimum dividend (final dividend No. 9) was agreed upon, with charge to the profit for 2019. Additionally, and to offset the resulting impairment of the subsidiary Enel Generación Chile in 2019 (see Note 16.c.iv, Development during 2019), the distribution of a provisional dividend (No. 9) was approved with charge to the retained earnings for previous years. 27.3 Foreign currency translation reserves The detail by company of the translation differences attributable to owners of the Group, of the consolidated statement of financial position as of December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 12-31-2020 12-31-2019 12-31-2018 Reserves for Accumulated Currency Translation Differences ThCh$ ThCh$ ThCh$ Enel Generación Chile S.A. (7,746,933) (3,292,629) 302,222 GNL Chile S.A. 907,869 1,022,047 900,483 Grupo Enel Green Power Chile 110,921,404 168,387,151 100,452,131 Enel AMPCI Ebus Chile SpA (432,247) — — TOTAL 103,650,093 166,116,569 101,654,836 27.4 Restrictions Our subsidiary Enel Generación Chile must comply with certain financial ratios or covenants, which require a minimum level of equity or contain other characteristics that restrict the transfer of assets to the Parent. As of December 31, 2020, the Company's interest in the net restricted assets of Enel Generación Chile amounts to ThCh$ 712,519,037 (ThCh$752,696,419 as of December 31, 2019). 27.5 Other reserves Other reserves for the years ended December 31, 2020 and 2019, are as follows: 01.01.2020 2020 Changes 12-31-2020 Detail of other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 166,116,569 (62,466,476) 103,650,093 Cash flow hedges (291,006,520) 188,060,425 (102,946,095) Financial assets at fair value with changes in other comprehensive income 8,384 (6,601) 1,783 Other miscellaneous reserves (2,280,627,568) 2,296,302 (2,278,331,266) TOTAL (2,405,509,135) 127,883,650 (2,277,625,485) 01.01.2019 2019 Changes 12-31-2019 Detail of other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 101,654,836 64,461,733 166,116,569 Cash flow hedges (191,870,545) (99,135,975) (291,006,520) Financial assets at fair value with changes in other comprehensive income 11,041 (2,657) 8,384 Other miscellaneous reserves (2,285,467,896) 4,840,328 (2,280,627,568) TOTAL (2,375,672,564) (29,836,571) (2,405,509,135) 01.01.2018 2018 Changes 12-31-2018 Detail of other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 6,976,383 94,678,453 101,654,836 Cash flow hedges (32,849,736) (159,020,809) (191,870,545) Financial assets at fair value with changes in other comprehensive income 11,284 (243) 11,041 Other miscellaneous reserves (971,468,479) (1,313,999,417) (2,285,467,896) TOTAL (997,330,548) (1,378,342,016) (2,375,672,564) a) Reserves for exchange differences on translation: These reserves arise primarily from exchange differences relating to the translation of financial statements of the Company’s consolidated entities with functional currencies other than the Chilean peso (see Note 2.7.3). b) Cash flow hedge reserves: These reserves represent the cumulative effective portion of gains and losses on cash flow hedges (see Note 3.g.5 and 3.h). c) Other miscellaneous reserves: The main items and their effects are the following: For the years ended 2020 2019 2018 Other Miscellaneous Reserves ThCh$ ThCh$ ThCh$ Company restructuring reserve ("Division") (i) (534,057,733) (534,057,733) (534,057,733) Reserve for transition to IFRS (ii) (457,221,836) (457,221,836) (457,221,836) Reserve for subsidiaries transactions (iii) 12,502,494 12,502,494 12,502,494 Reserves for Tender Offer of Enel Generation “Reorganization of Renewable Assets” (iv) (910,437,224) (910,437,224) (910,437,224) Reserves “Reorganization of Renewable Assets” (v) (407,354,462) (407,354,462) (407,354,462) Argentine hyperinflation (vi) 11,216,652 8,939,332 3,508,753 Other miscellaneous reserves (vii) 7,020,843 7,001,861 7,592,112 TOTAL (2,278,331,266) (2,280,627,568) (2,285,467,896) i) Corporate restructuring reserve (Division): This represents the effect generated by the corporate reorganization of Enersis S.A. (currently Enel Américas), concluded in 2016, by which the company divided its businesses between Chile and the rest of South America. The new company was called Enersis Chile (now Enel Chile), and was assigned the equity corresponding to the related business in Chile. ii) Reserves for transition to IFRS: In compliance with the provisions of Circular No. 456 by the Financial Market Commission, the price-level restatement of accumulated paid-in capital has been incorporated in this category from the date of the Company’s transition to IFRS, i.e., January 1, 2004, through December 1, 2008. iii) Reserves for business combinations: These represent the effect generated by the purchases of interest under common control. iv) "Reorganization of Renewable Assets” Enel Generación Chile Takeover Reserve: This represents the difference between the carrying amount of non-controlling interest acquired as part of the tender offer aimed at acquiring all shares issued by the subsidiary Enel Generación Chile (see Note 5.i). v) "Reorganization of Renewable Assets” Reserve: This corresponds to the reserve constituted by the merger between Enel Green Power Latin América and Enel Chile on April 2, 2018. It represents the recognition of the difference produced by the capital increase in Enel Chile (corresponding to the market value of interest in Enel Green Power Chile and subsidiaries) and the carrying amount of Enel Green Power Latin América's equity that was incorporated under share capital in the net equity distributable to the owners of Enel Chile, as a result of the merger. vi) Hyperinflation in Argentina: This corresponds to the calculated effect of the application of IAS 29 “Financial Reporting in Hyperinflationary Economies” on the branch held by the Enel Generación Chile Group in Argentina (see Note 2.9). vii) Other miscellaneous reserves This reserve derives from transactions performed in prior years. 27.6 The detail of non-controlling interests as of December 31, 2020, 2019 and 2018, is as follows: Non-controlling Interests Equity Profit (Loss) 12-31-2020 12-31-2020 12-31-2019 2020 2019 2018 Companies % ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Enel Distribución Chile S.A. 0,91% 8,188,827 7,691,319 749,261 1,079,941 1,112,709 Enel Generación Chile S.A. 6,45% 111,567,532 126,700,973 (10,006,037) 12,667,880 42,883,953 Empresa Eléctrica Pehuenche S.A. 7,35% 10,113,358 10,079,858 6,403,829 6,241,062 6,885,422 Sociedad AgrÍcola de Cameros Ltda. 42,50% 2,068,169 1,837,612 230,557 (504,550) (254,604) Geotermica del Norte SA 15,41% 55,283,359 57,871,809 645,440 (264,158) (187,989) Empresa Nacional de Geotermia SA 49,00% 11,134 995,614 (515,293) (74,963) 41,780 Parque Eolico Talinay Oriente SA 39,09% 55,283,519 57,586,860 945,454 868,127 662,374 Others (157,189) (178,379) 20,267 (73,726) (5,825) TOTAL 242,358,709 262,585,666 (1,526,522) 19,939,613 51,137,820

Revenue and Other Operating Inc

Revenue and Other Operating Income	12 Months Ended
	Dec. 31, 2020
REVENUE AND OTHER OPERATING INCOME
Revenue and Other Operating Income	28. REVENUE AND OTHER OPERATING INCOME The detail of revenue presented in the statement of comprehensive income for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 Revenues ThCh$ ThCh$ ThCh$ Energy sales (1) 2,380,736,600 2,405,903,242 2,202,078,088 Generation 1,111,508,158 1,090,021,527 1,034,975,160 Regulated customers (2) 480,168,004 540,017,333 643,494,066 Unregulated customers 571,587,710 524,559,735 357,725,928 Spot market sales 59,752,444 25,444,459 33,755,166 Distribution 1,269,228,442 1,315,881,715 1,167,102,928 Residential (2) 608,703,250 552,124,205 455,840,910 Business 366,874,872 450,108,855 378,092,990 Industrial 168,931,181 181,595,960 209,252,478 Other consumers (3) 124,719,139 132,052,695 123,916,550 Other sales 58,870,872 124,113,792 123,345,383 Gas sales 38,808,266 97,564,262 103,717,558 Sales of goods and services 20,062,606 26,549,530 19,627,825 Revenue from other services 108,776,845 94,559,289 84,936,988 Tolls and transmission 41,859,311 31,232,252 20,311,403 Metering equipment leases 3,387,302 2,131,427 4,702,334 Services and Business Advisories provided (Public lighting, connections and electrical advisories) 53,121,851 47,455,465 45,904,638 Other services 10,408,381 13,740,145 14,018,613 Total Revenues 2,548,384,317 2,624,576,323 2,410,360,459 Other Income ThCh$ ThCh$ ThCh$ Temporary leasing of generating facilities 10,662,952 2,777,404 — Commodity derivative income 4,473,463 5,967,739 9,819,777 Income from early termination of electricity supply contracts (4) — 121,117,605 — Income from insurance claims 10,799,437 5,952,589 25,442,309 Other income (5) 11,082,028 10,442,700 11,538,881 Total other income 37,017,880 146,258,037 46,800,967 (1) As of December 31, 2020, a total of ThCh$434,442,879 is included in total revenue, corresponding to estimated and unbilled sales, which are related to estimations made of energy sold in the month of December 2020, including PEC and node prices. As of December 31, 2019 and 2018, the amounts correspond to ThCh$310,301,370 and ThCh$209,288,934, respectively. (2) For the year ended December 31, 2020, this line item includes an effect of ThCh$77,973,766 corresponding to the differences between the prices of electricity supply contracts and regulated prices, which will be billed in the future in accordance with the schedule established in Law No. 21,185 (see Note 9). Of this amount, ThCh$25,154,565 correspond to income that the Group will have to transfer to final customers through its subsidiary Enel Distribución Chile. (3) For the year ended December 31, 2020, Other customers includes revenues from the sale of energy to municipalities of ThCh$35,598,366 (ThCh$45,768,456 and ThCh$36,878,861 as of December 31, 2019 and 2018, respectively), governmental entities of ThCh$17,334,983 (ThCh$20,432,048 and ThCh$20,246,633 as of December 31, 2019 and 2018, respectively), agricultural sector companies of ThCh$10,324,464 (ThCh$9,100,691 and ThCh$6,173,077 as of December 31, 2019 and 2018, respectively), utilities and telecommunications companies of ThCh$27,014,443 (ThCh$24,818,503 and ThCh$26,636,066 as of December 31, 2019 and 2018, respectively), education sector of ThCh$5,749,102 (ThCh$9,367,933 and ThCh$12,470,709 as of December 31, 2019 and 2018, respectively), healthcare services of ThCh $21,407,325 (ThCh$18,975,909 and ThCh$19,629,502 as of December 31, 2019 and 2018, respectively) and other of ThCh$ 7,290,456 (ThCh$ 3,589,156 and ThCh$ 1,881,702 as of December 31, 2019 and 2018, respectively). (4) In February 2019, Anglo American Sur S.A. notified Enel Generación Chile of its decision to terminate early three electricity supply contracts, which both parties had signed in 2016. As stipulated in the termination clauses of the respective contracts, the notice of early termination granted Enel Generación Chile the right to receive termination compensation, consisting of a cash payment by Anglo American Sur S.A., which would be determined according to a predefined calculation mechanism. It is important to note that between the date of notice of the early termination and the date of effective termination of the contracts, there were no performance obligations pending delivery by Enel Generación Chile, as the original contracts established the start of supply in January 2021. Therefore, following the accounting criteria described in Note 3.q), income of ThCh$121,117,605 was recognized. On June 21, 2019, Enel Generación Chile made a non-recourse assignment of the cash flows of this agreement. Consequently, the cash inflow resulted in the derecognition of the account receivable from Anglo American Sur S.A. existing at that date. (5) For the year ended December 31, 2020, Other income includes revenue recovery from customers with unrecorded consumption of ThCh$3,084,840 (ThCh$2,746,764 and ThCh$ 2,847,740 for the years ended December 31, 2019 and 2018, respectively), income from late cancellation of ThCh$456,781 (ThCh$485,684 and ThCh$675,202 for the years ended December 31, 2019 and 2018, respectively) sale of demineralized water of ThCh$1,408,798 (ThCh$498,577 and ThCh$542,927 for the years ended December 31, 2019 and 2018, respectively), and other income of ThCh$6,131,609 (ThCh$6,711,675 and ThCh$7,473,012 for the years ended December 31, 2019 and 2018, respectively).

Raw Materials and Consumables U

Raw Materials and Consumables Used	12 Months Ended
	Dec. 31, 2020
RAW MATERIALS AND CONSUMABLES USED.
Raw Materials and Consumables Used	29. RAW MATERIALS AND CONSUMABLES USED The detail of raw materials and consumables used presented in profit or loss for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 Raw materials and consumables used ThCh$ ThCh$ ThCh$ Energy purchases (864,863,454) (835,284,742) (747,646,603) Fuel consumption (231,176,489) (230,944,415) (231,028,169) Gas (149,734,219) (134,127,365) (140,145,010) Oil (6,100,077) (3,326,061) (11,146,001) Coal (75,342,193) (93,490,989) (79,737,158) Transportation costs (141,539,687) (196,848,788) (166,875,801) Gas sales costs (34,332,998) (74,998,608) (80,477,713) Other raw materials and consumables (102,533,011) (83,128,698) (66,148,830) Total (1,374,445,639) (1,421,205,251) (1,292,177,116)

Employee Benefits Expense

Employee Benefits Expense	12 Months Ended
	Dec. 31, 2020
EMPLOYEE BENEFITS EXPENSE.
Employee Benefits Expense	30. EMPLOYEE BENEFITS EXPENSE The detail of employee expenses for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 Employee Benefits Expense ThCh$ ThCh$ ThCh$ Wages and salaries (117,220,406) (109,101,737) (102,897,710) Post-employment benefit obligations expense (2,132,231) (3,153,395) (1,881,202) Social security and other contributions (12,346,828) (14,334,587) (13,405,944) Other employee expenses (5,527,283) (3,015,237) (4,945,478) Total Employee Benefits Expenses (137,226,748) (129,604,956) (123,130,334)

Depreciation, Amortization and

Depreciation, Amortization and Impairment Losses	12 Months Ended
	Dec. 31, 2020
DEPRECIATION, AMORTIZATION AND IMPAIRMENT LOSSES.
Depreciation, Amortization and Impairment Losses	31. a) The detail of depreciation and amortization for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 ThCh$ ThCh$ ThCh$ Depreciation (215,581,938) (224,724,380) (202,971,892) Amortization (14,375,081) (11,903,007) (12,215,408) Total (229,957,019) (236,627,387) (215,187,300) b) The detail of the items related to impairment for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, Generation Distribution Other Total 2020 2019 2018 2020 2019 2018 2020 2019 2018 2020 2019 2018 Information on Impairment Losses by Reportable Segment ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Property, Plant and Equipment (see Note 16)(*) (698,235,380) (280,020,263) — — — — — — — (698,235,380) (280,020,263) — Intangibles (see Note 14) (217,658) — — — — — — — — (217,658) — — Investment Property (see Note 17) — — — — — — 646,597 (742,389) (779,825) 646,597 (742,389) (779,825) Total Reversal of impairment losses (impairment losses) recognized in profit or loss (698,235,380) (280,020,263) — — — — 646,597 (742,389) (779,825) (697,806,441) (280,762,652) (779,825) Impairment gain and reversals from impairment losses in accordance with IFRS 9 (see note 10.d) (1,305,341) (1,338,599) (106,264) (12,998,719) (8,153,419) (4,676,808) (863,647) (554,982) — (15,167,707) (10,047,000) (4,783,072) (*) Relates to the process to closure the operations of Bocamina II for ThCh$697,856,387 mainly, see Note 16, paragraph c), iv).

Other Expenses

Other Expenses	12 Months Ended
	Dec. 31, 2020
OTHER EXPENSES
Other Expenses	32. OTHER Other miscellaneous operating expense for the years ended December 31, 2020, 2019 and 2018, are detailed as follows: For the years ended December 31, 2020 2019 2018 Other Expenses by nature ThCh$ ThCh$ ThCh$ Professional, outsourced and other services (74,630,728) (60,819,733) (69,692,677) Administrative expenses (7,214,238) (8,893,785) (5,991,676) Repairs and maintenance (49,051,950) (50,846,851) (41,829,409) Indemnities and fines (1,029,517) (1,243,376) (455,825) Taxes and charges (5,675,978) (6,802,176) (4,415,819) Insurance premiums (19,992,385) (19,200,681) (15,794,761) Leases and rental costs (4,958,760) (3,824,195) (3,775,007) Marketing, public relations and advertising (2,491,884) (3,274,693) (2,440,070) Write-off Property, Plant and Equipment (*) — (3,510,591) — Travel expenses (2,223,358) (3,991,349) (2,436,407) Environmental expenses (8,313,182) (9,886,690) (9,664,683) Other supplies and services (15,011,354) (11,849,020) (10,713,687) Total (190,593,334) (184,143,140) (167,210,021) See explanation in Note 16 e) paragraph vi).

Other Gains (Losses)

Other Gains (Losses)	12 Months Ended
	Dec. 31, 2020
OTHER GAINS (LOSSES)
Other Gains (Losses)	33. OTHER GAINS (LOSSES) The detail of other gains (losses) for the years ended December 31, 2020, 2019 and 2018 is as follows: For the years ended December 31, 2020 2019 2018 Other Gains (Losses) ThCh$ ThCh$ ThCh$ Gain on sale of Property, Plant and Equipment 9,384,038 1,530,689 3,024,549 Result of other investments 104,777 262,512 385,830 Total 9,488,815 1,793,201 3,410,379

Financial Results

Financial Results	12 Months Ended
	Dec. 31, 2020
FINANCIAL RESULTS.
Financial Results	34. FINANCIAL RESULTS. Finance income and costs for the years ended December 31, 2020, 2019 and 2018, are as follows: For the years ended December 31, 2020 2019 2018 Finance Income ThCh$ ThCh$ ThCh$ Income from deposits and other financial instruments 7,324,057 8,973,606 9,612,575 Interests charged to customers in energy accounts and billing 12,477,393 8,057,203 7,140,984 Financial income by Law N°21,185 (1) 15,328,829 5,225,739 Other financial income 1,030,181 5,142,727 3,180,909 Total Finance Income 36,160,460 27,399,275 19,934,468 For the years ended December 31, 2020 2019 2018 Finance Costs ThCh$ ThCh$ ThCh$ Finance Costs (127,408,771) (164,897,900) (122,184,189) Bank loans (7,151,030) (14,487,700) (20,701,774) Bonds payable to the public not guaranteed (84,268,247) (81,818,564) (62,255,300) Lease obligations (2,128,360) (1,815,170) (739,069) Valuation of financial derivatives for cash flow hedging (5,887,498) 1,775,749 1,183,228 Financial update of provisions (2) (4,115,292) (4,356,650) (3,176,001) Post-employment benefit obligations (3) (2,146,386) (2,639,738) (2,750,376) Debt formalization expenses and other associated expenses (2,646,906) (4,710,012) (9,373,412) Capitalized borrowing costs 33,109,819 9,321,354 6,435,646 Financial cost related companies (35,079,947) (31,304,382) (23,228,947) Financial cost by Law N°21,185 (1) (4,518,268) (19,062,333) — Other financial costs (12,576,656) (15,800,454) (7,578,184) (Loss) gain from indexed assets and liabilities, net 2,085,768 (2,982,268) (818,146) Foreign currency exchange differences (23,272,231) (10,412,110) (7,807,197) Total Finance Costs (148,595,234) (178,292,278) (130,809,532) Total Financial Results (112,434,774) (150,893,003) (110,875,064) (1) Relates to finance income and costs generated by the temporary electric power pricing stabilization mechanism for customers subject to price regulation, as established in Law No. 21,185 (see Note 9). (2) See Note 25. (3) See Note 26.2 b). The origins of the effects on results for the application of adjustment units and foreign exchange gains (losses) are as follows: For the years ended December 31, 2020 2019 2018 Gains (losses) from Indexed Assets and Liabilities (*) ThCh$ ThCh$ ThCh$ Cash and cash equivalents — 36,797 — Other non-financial assets — — 45,108 Trade and other receivables 2,212,324 1,410,408 1,197,498 Current tax assets and liabilities 1,026,963 2,557,465 3,424,644 Other financial liabilities (financial debt and derivative instruments) 980,933 (1,637,291) (1,714,216) Trade and other payables 241,532 16,939 15,145 Other provisions (196,777) — — Other non-financial liabilities (643) (1,688) — Sub total 4,264,332 2,382,630 2,968,179 Intangible assets other than goodwill 142 203 180 Property, plant and equipment 764,982 1,132,453 1,035,084 Deferred tax liabilities (548,505) — — Equity (2,434,384) (5,805,120) (3,743,959) Other Provision of Services (1,246) — (1,189,452) Energy Sales — (1,352,295) — Energy Purchases — 432 — Other variable supplies and services — — 21,503 Work for the Fixed Assets — 103,512 — Personal expenses 130,213 166,715 143,148 Other fixed operating expenses 108,226 23,714 147,975 Financial income (204,137) (367,059) (268,511) Financial expenses 6,145 732,547 67,707 Sub total Hyperinflation result (1) (2,178,564) (5,364,898) (3,786,325) Gains from indexed assets and liabilities, net 2,085,768 (2,982,268) (818,146) For the years ended December 31, 2020 2019 2018 Foreign Currency Exchange Differences (**) ThCh$ ThCh$ ThCh$ Cash and cash equivalents 10,110,166 (937,177) (415,962) Other financial assets 6,316,333 2,052,540 5,733,173 Other non-financial assets 6,086,388 (1,712,690) (534,401) Trade and other receivables (2) (24,504,740) 8,847,969 726,347 Current tax assets and liabilities (4,361,506) (1,633,471) (1,903,963) Other financial liabilities (financial debt and derivative instruments) (10,265,859) (8,147,939) (5,726,246) Trade and other payables (2) (5,755,302) (9,381,721) (5,379,210) Other non-financial liabilities (897,711) 500,379 (306,935) Total Foreign Currency Exchange Differences (23,272,231) (10,412,110) (7,807,197) (1) Corresponds to the financial effect derived from the application of IAS 29 “Financial Reporting in Hyperinflationary Economies” on the branch held by the Enel Generación Chile Group in Argentina (see Note 2.9). (2) This includes the foreign currency translation difference due to the dollarization of trade receivables and payables in the amount of ThCh$(36,494,889) and ThCh$ 11,234,506 respectively, as a result of the temporary electric power pricing stabilization mechanism for customers subject to price regulation, as established in Law No. 21,185 (see Note 9).

Information by Segment

Information by Segment	12 Months Ended
	Dec. 31, 2020
INFORMATION BY SEGMENT
Information by Segment	35. INFORMATION BY SEGMENT 35.1. Basis of segmentation The Group’s activities operate under a matrix management structure with dual and cross management responsibilities (based on business and geographical areas of responsibility), and its subsidiaries are engaged in either the Generation and Transmission Business or the Distribution Business. The Group adopted a “bottom-up” approach to determine its reportable segments. The Generation and Transmission and the Distribution reportable segments have been defined based on IFRS 8.9 and on the criteria described in IFRS 8.12. Generation Segment: The electricity generation segment is comprised of a group of electricity companies that own electricity generating plants, whose energy is transmitted and distributed to end consumers. The Generation Business in Chile is conducted by the Company’s subsidiaries Enel Generación Chile S.A. and Empresa Eléctrica Pehuenche S.A., and the Company’s group is engaged in the development and exploitation of renewable energies with the wind power subsidiaries Parque Eólico Tal Tal SpA and Parque Talinay Oriente S.A., and the geothermal subsidiary Geotérmica del Norte S.A., as well as the wind and solar power from Enel Green Power Chile S.A., and the subsidiary Almeyda Solar SpA, which is engaged in hydro, solar and wind power generation. Distribution Business: The Distribution reportable segment is comprised of the company Enel Distribución Chile S.A., operating under a public utility concession, with service obligations and regulated tariffs for supplying regulated customers. Each of the operating segments generates separate financial information, which is aggregated into one combined set of information for the Generation Business, and another set of combined information for the Distribution Business at the reportable segment level. In addition, in order to assist the decision maker process, the Planning & Control Department at the parent company level prepares internal reports containing combined information at the reportable segment level about the main key performance indicators (KPIs), such as: Gross Operating Income, Gross Margin, Total Capex, Total Opex, Net income, Total Energy Generation and Transmission, among others. The presentation of information under this business approach has been made taking into consideration that the KPIs are similar in each of the following aspects: a) the nature of the activities: generation on one hand, and distribution on the other; b) the nature of the production processes: The Generation Business deals with the generation of electricity and its transmission to dispatch centers, while the Distribution Business does not generate electricity, but distributes electricity to end customers; c) the type or class of customer for their products and services: the Generation Business provides services mainly to unregulated customers, while the Distribution Business provides services to regulated customers; d) the methods used to distribute their products or provide their services: generators generally sell energy through energy auctions, while distributors provide energy in their concession area; and e) the nature of the regulatory environment (public utilities): the regulatory frameworks differ in the Generation and Transmission Business and the Distribution Business. The Company’s chief operating decision maker (“CODM”) in conjunction with managers in Chile reviews on a monthly basis these internal reports and uses the KPI information to make decisions on the allocation of resources and the assessment of the performance of the operating segments for each reportable segment. The information disclosed in the following tables is based on the financial information of the companies forming each segment. The accounting policies used to determine the segment information are the same as those used in the 35.2 Generation Generation Distribution Holdings, eliminations and others Total 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ASSETS CURRENT ASSETS 581,661,790 941,262,837 282,024,842 289,393,932 162,714,564 (212,444,109) 1,026,401,196 1,018,212,660 Cash and cash equivalents 4,971,820 26,391,853 3,657,471 2,331,365 323,406,722 206,961,282 332,036,013 235,684,500 Other current financial assets 2,562,093 489,658 29,977 64,220 760,334 756,717 3,352,404 1,310,595 Other current non-financial assets 11,665,802 8,908,239 2,830,106 8,868,077 5,305,665 16,858,247 19,801,573 34,634,563 Trade and other current receivables 285,241,891 230,670,997 259,172,712 260,840,410 10,472,036 19,943,923 554,886,639 511,455,330 Current accounts receivable from related companies 232,991,789 587,067,775 4,269,460 10,115,510 (179,285,124) (529,001,152) 57,976,125 68,182,133 Inventories 18,163,284 34,705,515 3,397,415 3,150,943 1,749,330 1,815,792 23,310,029 39,672,250 Current tax assets 26,065,111 53,028,800 8,667,701 4,023,407 305,601 70,221,082 35,038,413 127,273,289 NON-CURRENT ASSETS 4,722,779,027 4,771,905,050 1,369,182,558 1,175,550,962 786,108,803 892,319,492 6,878,070,388 6,839,775,504 Other non-current financial assets 20,660,446 7,189,431 4 22,741 — 8,448 20,660,450 7,220,620 Other non-current non-financial assets 62,608,451 34,903,436 2,791,875 2,576,585 386,889 570,163 65,787,215 38,050,184 Trade and other non-current receivables 166,469,458 88,225,632 277,378,406 157,051,933 1,168,702 68,296,820 445,016,566 313,574,385 Non-Current accounts payable from related companies 141,649,129 80,926,788 — — (93,290,214) (46,519,646) 48,358,915 34,407,142 Investments accounted for using the equity method 9,551,139 7,928,588 — — 3,441,664 — 12,992,803 7,928,588 Intangible assets other than goodwill 94,464,506 76,077,944 65,335,352 51,360,795 5,314,663 4,839,854 165,114,521 132,278,593 Goodwill 32,682,252 33,135,272 2,240,478 2,240,478 880,782,639 881,977,224 915,705,369 917,352,974 Property, plant and equipment 4,037,877,000 4,370,419,860 1,015,249,248 957,752,454 (19,629,776) (23,696,200) 5,033,496,472 5,304,476,114 Investment property — — — — 7,421,940 6,795,155 7,421,940 6,795,155 Assets for right of use 50,373,648 52,155,733 5,117,436 3,640,103 11,108 47,674 55,502,192 55,843,510 Deferred tax assets 106,442,998 20,942,366 1,069,759 905,873 501,188 — 108,013,945 21,848,239 TOTAL ASSETS 5,304,440,817 5,713,167,887 1,651,207,400 1,464,944,894 948,823,367 679,875,383 7,904,471,584 7,857,988,164 Generation Distribution Holdings, eliminations and others Total 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ LIABILITIES AND EQUITY CURRENT LIABILITIES 903,590,885 844,513,549 335,412,469 317,248,207 (193,523,189) (120,461,904) 1,045,480,165 1,041,299,852 Other current financial liabilities 155,592,371 206,888,115 77,554 1 1,829,216 1,926,445 157,499,141 208,814,561 Current lease liabilities 5,495,257 5,039,971 1,505,677 738,782 6,777 63,262 7,007,711 5,842,015 Trade and other current payables 416,425,675 300,957,548 190,709,618 200,472,938 20,822,729 97,832,722 627,958,022 599,263,208 Current accounts payable to related companies 237,326,397 296,861,070 118,883,364 87,507,312 (226,155,799) (224,558,495) 130,053,962 159,809,887 Other current provisions 2,933,069 3,619,734 — — 501,735 446,231 3,434,804 4,065,965 Current tax liabilities 65,963,158 17,717,789 95,556 34,718 6,301,230 243,326 72,359,944 17,995,833 Other current non-financial liabilities 19,854,958 13,429,322 24,140,700 28,494,456 3,170,923 3,584,605 47,166,581 45,508,383 NON-CURRENT LIABILITIES 1,647,789,150 1,899,077,568 415,149,858 301,769,861 1,201,777,912 868,557,231 3,264,716,920 3,069,404,660 Other non-current financial liabilities 774,737,983 954,402,603 4 — 708,851,139 738,201,642 1,483,589,126 1,692,604,245 Non-current lease liabilities 41,147,046 44,572,348 3,704,860 2,993,326 5,901 — 44,857,807 47,565,674 Trade and other non-current payables 4,286,773 2,281,053 112,922,799 53,968,545 487 487 117,210,059 56,250,085 Non-current accounts payable to related companies 457,825,939 486,839,484 228,805,329 182,031,404 477,413,194 115,502,596 1,164,044,462 784,373,484 Other long-term provisions 194,653,912 160,006,401 15,587,759 11,853,881 — — 210,241,671 171,860,282 Deferred tax liabilities 152,083,137 231,156,234 20,212,892 19,818,625 (4,238,467) (1,690,218) 168,057,562 249,284,641 Non-current provisions for employee benefits 23,054,360 19,819,445 32,738,247 29,801,321 19,745,658 16,542,724 75,538,265 66,163,490 Other non-current non-financial liabilities — — 1,177,968 1,302,759 — — 1,177,968 1,302,759 EQUITY 2,753,060,782 2,969,576,770 900,645,073 845,926,826 (59,431,356) (68,219,944) 3,594,274,499 3,747,283,652 Equity attributable to Enel Chile 2,753,060,782 2,969,576,770 900,645,073 845,926,826 (59,431,356) (68,219,944) 3,351,915,790 3,484,697,986 Issued capital 1,403,737,121 1,185,731,351 230,137,980 230,137,980 2,248,228,369 2,466,234,139 3,882,103,470 3,882,103,470 Retained earnings 1,473,514,878 1,735,720,458 988,991,623 933,560,288 (715,068,696) (661,177,095) 1,747,437,805 2,008,103,651 Issuance premiums 85,511,492 85,511,492 354,220 354,220 (85,865,712) (85,865,712) — — Treasury shares in portfolio (252,632,367) — — — 252,632,367 — — — Other reserves 42,929,658 (37,386,531) (318,838,750) (318,125,662) (1,759,357,684) (1,787,411,276) (2,277,625,485) (2,405,509,135) Non-controlling interests — — — — — — 242,358,709 262,585,666 Total Liabilities and Equity 5,304,440,817 5,713,167,887 1,651,207,400 1,464,944,894 948,823,367 679,875,383 7,904,471,584 7,857,988,164 The Holding, Eliminations and Others column corresponds to transactions between companies in different lines of business and country, primarily purchases and sales of energy and services. Generation Distribution Holdings eliminations Total 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENTS OF COMPREHENSIVE INCOME (LOSS) REVENUES 1,577,422,263 1,726,611,508 1,580,653,088 1,382,068,220 1,412,871,738 1,263,224,072 (374,088,286) (368,648,886) (386,715,734) 2,585,402,197 2,770,834,360 2,457,161,426 Revenues 1,543,647,794 1,581,230,963 1,540,352,133 1,376,425,433 1,408,588,042 1,254,943,604 (371,688,910) (365,242,682) (384,935,278) 2,548,384,317 2,624,576,323 2,410,360,459 Energy sales 1,494,203,779 1,472,565,933 1,425,942,129 1,270,159,653 1,318,386,716 1,170,129,333 (383,626,832) (385,049,407) (393,993,374) 2,380,736,600 2,405,903,242 2,202,078,088 Other sales 38,825,239 97,870,470 103,779,801 6,601,069 9,365,186 16,411,425 13,444,564 16,878,136 3,154,157 58,870,872 124,113,792 123,345,383 Other services rendered 10,618,776 10,794,560 10,630,203 99,664,711 80,836,140 68,402,846 (1,506,642) 2,928,589 5,903,939 108,776,845 94,559,289 84,936,988 Other operating income 33,774,469 145,380,545 40,300,955 5,642,787 4,283,696 8,280,468 (2,399,376) (3,406,204) (1,780,456) 37,017,880 146,258,037 46,800,967 RAW MATERIALS AND CONSUMABLES USED (616,852,308) (678,187,609) (709,506,221) (1,116,324,483) (1,114,936,281) (972,499,918) 358,731,152 371,918,639 389,829,023 (1,374,445,639) (1,421,205,251) (1,292,177,116) Energy purchases (177,049,909) (160,044,206) (213,114,437) (1,060,494,642) (1,056,562,636) (926,385,346) 372,681,097 381,322,099 391,853,181 (864,863,454) (835,284,743) (747,646,602) Fuel consumption (231,176,490) (230,944,414) (231,028,169) — — — — — — (231,176,490) (230,944,414) (231,028,169) Transportation expenses (113,704,101) (169,062,680) (154,044,158) (23,694,571) (22,725,942) (9,816,883) (4,141,015) (5,060,166) (3,014,761) (141,539,687) (196,848,788) (166,875,802) Other miscellaneous supplies and services (94,921,808) (118,136,309) (111,319,457) (32,135,270) (35,647,703) (36,297,689) (9,808,930) (4,343,294) 990,603 (136,866,008) (158,127,306) (146,626,543) CONTRIBUTION MARGIN 960,569,955 1,048,423,899 871,146,867 265,743,737 297,935,457 290,724,154 (15,357,134) 3,269,753 3,113,289 1,210,956,558 1,349,629,109 1,164,984,310 Other work performed by the entity and capitalized 15,581,738 8,887,421 8,663,737 9,805,315 8,723,440 6,667,947 152,263 — 1,379,279 25,539,316 17,610,861 16,710,963 Employee benefits expense (65,564,485) (62,871,525) (61,991,737) (37,496,730) (34,828,194) (32,598,818) (34,165,533) (31,905,237) (28,539,779) (137,226,748) (129,604,956) (123,130,334) Other expenses (121,366,276) (120,522,841) (104,190,567) (79,580,559) (70,678,241) (64,179,201) 10,353,501 7,057,942 1,159,747 (190,593,334) (184,143,140) (167,210,021) GROSS OPERATING INCOME 789,220,932 873,916,954 713,628,300 158,471,763 201,152,462 200,614,082 (39,016,903) (21,577,542) (22,887,464) 908,675,792 1,053,491,874 891,354,918 Depreciation and amortization expense (185,479,080) (196,623,025) (179,901,682) (45,583,947) (40,705,580) (36,677,957) 1,106,008 701,218 1,392,339 (229,957,019) (236,627,387) (215,187,300) Impairment losses (reversal of impairment losses) recognized in profit or loss (698,453,039) (280,020,263) — — — — 646,598 (742,389) (779,825) (697,806,441) (280,762,652) (779,825) Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9. (1,305,341) (1,338,599) (106,264) (12,998,719) (8,153,419) (4,676,808) (863,647) (554,982) — (15,167,707) (10,047,000) (4,783,072) OPERATING INCOME (96,016,528) 395,935,067 533,620,354 99,889,097 152,293,463 159,259,317 (38,127,944) (22,173,695) (22,274,950) (34,255,375) 526,054,835 670,604,721 FINANCIAL RESULT (80,090,891) (101,324,905) (86,621,659) 5,929,058 5,232,127 6,088,801 (38,272,941) (54,800,225) (30,342,206) (112,434,774) (150,893,003) (110,875,064) Financial income 15,080,015 15,241,046 8,727,356 22,717,208 22,742,687 11,166,433 (1,636,763) (10,584,458) 40,679 36,160,460 27,399,275 19,934,468 Cash and cash equivalents 597,718 3,556,554 5,673,621 1,562,194 1,456,253 1,633,373 5,164,145 3,960,799 2,305,581 7,324,057 8,973,606 9,612,575 Other financial income 14,482,297 11,684,492 3,053,735 21,155,014 21,286,434 9,533,060 (6,800,908) (14,545,257) (2,264,902) 28,836,403 18,425,669 10,321,893 Financial costs (59,088,322) (111,219,566) (82,878,715) (17,696,544) (19,061,123) (6,724,490) (50,623,905) (34,617,211) (32,580,984) (127,408,771) (164,897,900) (122,184,189) Bank borrowings (7,112,931) (11,813,855) (9,269,535) (33,244) (40,508) (5,374) (4,855) (2,633,337) (11,426,865) (7,151,030) (14,487,700) (20,701,774) Secured and unsecured obligations (47,654,290) (45,714,879) (43,965,839) — — — (36,613,957) (36,103,685) (18,289,461) (84,268,247) (81,818,564) (62,255,300) Others (4,321,101) (53,690,832) (29,643,341) (17,663,300) (19,020,615) (6,719,116) (14,005,093) 4,119,811 (2,864,658) (35,989,494) (68,591,636) (39,227,115) Income from indexation units (703,130) (5,157,076) (2,480,291) 1,124,304 1,843,435 1,616,607 1,664,594 331,373 45,538 2,085,768 (2,982,268) (818,146) Foreign exchange profits (losses) (35,379,454) (189,309) (9,990,009) (215,910) (292,872) 30,251 12,323,133 (9,929,929) 2,152,561 (23,272,231) (10,412,110) (7,807,197) Share of profit (loss) of associates and joint ventures accounted for using the equity method 2,424,250 366,089 3,190,240 — — — 1,085,142 — — 3,509,392 366,089 3,190,240 Other gains (losses) 9,478,528 1,683,246 3,434,503 10,287 12 — — 109,943 (24,124) 9,488,815 1,793,201 3,410,379 Gain (loss) from other investments 94,490 152,557 409,954 10,287 12 — — 109,943 (24,124) 104,777 262,512 385,830 Gain (loss) from the sale of assets 9,384,038 1,530,689 3,024,549 — — — — — — 9,384,038 1,530,689 3,024,549 Profit (loss) before taxes (164,204,641) 296,659,497 453,623,438 105,828,442 157,525,602 165,348,118 (75,315,743) (76,863,977) (52,641,280) (133,691,942) 377,321,122 566,330,276 Income tax 97,419,625 (40,347,869) (113,783,941) (23,421,217) (38,748,555) (42,967,123) 7,306,699 17,868,520 3,268,545 81,305,107 (61,227,904) (153,482,519) PROFIT (LOSS) (66,785,016) 256,311,628 339,839,497 82,407,225 118,777,047 122,380,995 (68,009,044) (58,995,457) (49,372,735) (52,386,835) 316,093,218 412,847,757 — — — — — — — — — Profit (loss) attributable to (66,785,016) 256,311,628 339,839,497 82,407,225 118,777,047 122,380,995 (68,009,044) (58,995,457) (49,372,735) (52,386,835) 316,093,218 412,847,757 Profit (loss) attributable to owners of the parent — — — — , — — — — (50,860,313) 296,153,605 361,709,937 Profit (loss) attributable to non-controlling interests — — — — — — — — — (1,526,522) 19,939,613 51,137,820 Generation Distribution Holdings eliminations Total 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENT OF CASH FLOWS Net cash flows from (used in) operating activities 551,979,917 754,113,794 638,607,494 111,689,249 50,246,845 117,692,384 92,197,032 (60,648,920) (20,774,356) 755,866,198 743,711,719 735,525,522 Net cash flows from (used in) investing activities (100,557,328) (426,038,012) (451,284,432) (111,939,127) (28,896,947) (123,070,452) (342,154,935) 143,403,148 (1,307,204,810) (554,651,390) (311,531,811) (1,881,559,694) Net cash flows from (used in) financing activities (469,832,875) (453,927,358) (249,051,150) 1,578,034 (23,901,991) (32,268,227) 340,585,507 37,393,661 1,247,896,253 (127,669,334) (440,435,688) 966,576,876 The Holding, Eliminations and Others column corresponds to transactions between companies in different lines of business and country, primarily purchases and sales of energy and services .

Guarantees with Third Parties,

Guarantees with Third Parties, Contingent Assets and, Liabilities, and Other Commitments	12 Months Ended
	Dec. 31, 2020
PROVISIONS
Provisions	36. 36.1 Direct guarantees As of December 31, 2020, Enel Chile had future energy purchase commitments amounting to ThCh$6,458,055,505 (ThCh$7,647,064,710 as of December 31, 2019). 36.2 Indirect guarantees Debtor Outstanding balance as of Contract Maturity Creditor of Guarantee Company Relationship Type of Guarantee Currency 12-31-2020 12-31-2019 Bonds Series B (*) October 2028 Bondholders of Enel Américas’ Bonds Enel Américas Entities demerged from original debtor Enersis S.A. (codebtor Enel Chile S.A.) Codebtor UF 7,672,851 11,646,991 Credit agreement December 2020 Scotiabank Chile Enel Green Power Chile S.A. Subsidiary Guarantor USD - 112,882,048 Credit agreement November 2022 Pto. GDN BID Enel Green Power Chile S.A. Subsidiary Guarantor USD 21,368,491 22,592,723 Credit agreement December 2021 Scotiabank Chile Enel Green Power Chile S.A. Subsidiary Guarantor USD 106,811,188 113,069,511 Guarantee contract December 2027 Enel Finance International N.V. Enel Green Power Chile S.A. Subsidiary Guarantor USD 458,115,841 484,341,824 (*)Upon the demerger of the original issuer, Enersis (currently Enel Américas), and in accordance with the bond indenture, all entities arising from the demerger are liable for the debt, regardless of the fact that that the payment obligation remains in Enel Américas 36.3 Lawsuits and Arbitration Proceedings As of the date of these consolidated financial statements, the most relevant litigation involving the Company and its subsidiaries are as follows: 1. Inversiones Tricahue filed a tort liability lawsuit against Enel Chile S.A., claiming its alleged liability for the economic losses suffered as a result of the corporate restructuring. In this lawsuit, Inversiones Tricahue and its subsidiary seek ThCh$72,558,025 and ThCh$12,431,395, respectively. The claim was notified on October 29, 2020. Enel Chile S.A. filed a plea claiming that this matter was not under the jurisdiction of the court, which was rejected by the court on December 22, 2020. Enel Chile S.A. filed an appeal, which is pending hearing and ruling. On January 5, 2021, the lawsuit was answered. 2. Mrs. Evelyn del Carmen Molina González, on behalf of herself and her minor daughters Maite Alué Letelier Molina and Daniela Anaís Letelier Molina, filed a claim for compensation of damages against Chilectra S.A. (currently Enel Distribución Chile S.A.) and its subcontractor Sociedad de Servicios Personales para el Área Eléctrica Limitada (“SSPAEL”) for a total amount of ThCh$2,000,000 (ThCh$1,000,000 for the first plaintiff and ThCh$500,000 for each of the latter two plaintiffs) for punitive damages due to the death of their spouse and father, respectively, Mr. David Letelier Riveros (deceased), which occurred on May 25, 2013 as a result of the injuries sustained after receiving an electric shock and falling from the height of a public street lighting post on which he was working. A judgment was issued on November 7, 2017 which found SSPAEL and Enel Distribución Chile (Chilectra) jointly liable to pay the sum of ThCh$90,000 for punitive damages to the plaintiffs , plus adjustments and costs. On November 24, 2017 Enel Distribución Chile filed an appeal against the judgment, submitting the background information to the Court of Appeals of Santiago, on December 4, 2017. On December 21, 2018 the judgment was confirmed by the Court of Appeals reducing the punitive damages to ThCh$70,000. On January 10, 2019 an appeal was filed. (14th Civil Court of Santiago, Case C-7304-2014). 3. Mrs. Ximena Acevedo Herrera, Benjamín Jiménez Acevedo, Francisco Jiménez Acevedo, Nancy Garrido Muñoz, Juan Carlos Jiménez Rocuant, Carolina Jiménez Garrido and Natalia Jiménez Garrido filed a claim for compensation of damages against Ingeniería Eléctrica Azeta Ltda and Enel Distribución Chile S.A. for a total amount of ThCh$878,227 (ThCh$28,227 ) for loss of profits and ThCh$850,000 for punitive damages) due to the death of their spouse, father, son, and brother, Mr. Juan Pablo Jiménez Garrido (deceased), which occurred on February 22, 2013 as a result of a head trauma caused by a bullet that was lodged in his brain. Enel Distribución Chile S.A. is a defendant in its capacity as the contractor of Azeta. The trial period is over. The motion for abandonment of the proceedings is pending service on the plaintiff. (5th Civil Court of Santiago, Case C-233-2017). 4. Mr. Víctor Hugo Coronado González and Mrs. Francia Magali Bustos Uribe, both on behalf of themselves and their minor daughter, Nicolson Rocío Coronado Bustos, and son, Víctor Ignacio Coronado Bustos, filed a claim for compensation of damages against Enel Distribución Chile S.A. for a total amount of ThCh$704,860 (ThCh$264,860 for loss of profits and ThCh$440,000 for punitive damages) due to an accident that occurred on June 22, 2015 that affected Mr. Coronado who received an electrical shock and suffered severe injuries. The trial period is over. A judgment of May 22, 2019 dismissed the lawsuit against Enel Distribución Chile S.A. On June 19, 2019, the plaintiffs filed an appeal, which is pending resolution. (7th Civil Court of Santiago, Case C-15965-2017). 5. Inmobiliaria Proyecto CR S.A. filed a claim for breach of contract and damages against Enel Distribución Chile S.A., in connection with contracts for the supply of electricity in the properties located at Lot 7A1, the entrance of which is located at Avenida Camino Real No. 4690 and Lot 7A2, the entrance of which is located at Avenida Camino Real No. 4680, district of Lo Barnechea. This company requested that Enel Distribución Chile S.A. pay UF 253,422, which is equivalent to ThCh$7,367,061. On September 12, 2020, the claim was answered. The discussion period concluded and the conciliation hearing is pending. (29th Civil Court of Santiago, Case No. C-15986-2020). 6. By means of Exempt Resolution No. 21,036 dated November 3, 2017, the Superintendency of Electricity and Fuels confirmed a fine of 35,611 UTM (ThCh$1,817,194) imposed on Enel Distribución Chile S.A. upon issuing a ruling against the request for reconsideration filed on January 14, 2016 against Exempt Resolution No. 11,750 dated December 29, 2015 because it determined that, in the period 2013-2014, Enel Distribución Chile had repeatedly exceeded the continuity of supply indices established by law. In opposition to this ruling, Enel Distribución Chile filed an appeal with the Court of Appeals of Santiago on November 28, 2017. On April 21, 2019, the expert witness submitted a report, which the Court of Appeals of Santiago accepted on April 30, 2019. On June 21, 2019 the claim was ready to be heard by the court. On June 26, 2019, the Constitutional Court issued a ruling, which gives effect to the principle of inapplicability due to unconstitutionality presented by Enel Distribución Chile. On June 28, 2019, the Court of Appeals of Santiago accepted the ruling issued by the Constitutional Court and thereby ordered the suspension of the proceeding, through an official letter to the Constitutional Court issued on June 28, 2019. On November 7, 2019, the Constitutional Court rejected the appeal for inapplicability due to unconstitutionality, resuming the litigation proceeding on November 22, 2019. Arguments were heard on January 16, 2020. On September 8, 2020, the court decided to reject the action filed by Enel Distribución Chile, and on September 22, 2020, Enel Distribución Chile filed an appeal against the decision. On October 20, 2020, the case was submitted to the Supreme Court. On November 5, 2020, the pleadings were held and the case was settled. On November 20, 2020, the court requested a report to the Superintendency, which should indicate the mathematical formula used by the Superintendency to apply the fines on the regulated parties. The report is intended to serve as a measure to facilitate judgment, and was issued on December 10, 2020, where Enel Distribución Chile S.A. made remarks on the contents on December 16, 2020. To date, the Court has not issued a ruling on the appeal. 7. By means of Exempt Resolution No. 24,805 dated July 20, 2018, the Superintendence of Electricity and Fuels confirmed a fine imposed on Enel Distribución Chile S.A. for 80,000 UTM (ThCh$4,082,320) when it issued a ruling against the request for reconsideration filed against Exempt Resolution No. 21,788 dated December 29, 2017 because it determined that Enel Distribución Chile S.A kept more than 100,000 customers without electricity supply for a period exceeding 20 hours, in relation to the power outage that occurred on July 15, 2017 (the snowstorm event). In opposition to this ruling, Enel Distribución Chile S.A filed an appeal with the Court of Appeals of Santiago on August 7, 2018. On March 7, 2019, Enel Distribución Chile S.A requested the court to appoint a new civil electrical engineer expert, who was appointed in a resolution dated March 15, 2019. The expert was notified on July 3, 2019 and accepted the appointment and proposed his fees on August 16, 2019. The court gave notice to the parties, and on September 5, 2019 the parties responded and accepted the expert’s fees and payment method. On November 28, 2019, the hearing to acknowledge this matter was held and subsequently on December 20, 2019, a certification of the end of the trial period was requested, which was issued by the clerk on January 7, 2020. On January 29, 2020, the appointed expert witness submitted his report. On February 5, 2020, Enel Distribución Chile S.A. requested the joinder of proceedings with case IC 339-2018 and to be heard at the Court of Appeals of Santiago, where the Superintendency imposed a fine on Enel Distribución Chile S.A. of 10,000 UTM (ThCh$510,290) , with respect to events that also occurred during the wind and snow storm of July 2017. On February 6, 2019, the Court of Appeals of Santiago deemed the expert's report to have been issued and, with respect to the request for joinder of proceedings, requested the clerk to issue the corresponding certification. On February 10, 2020, the attesting official certified that, although there is a close relationship between the appeals, they challenged different administrative acts. By means of a resolution dated February 7, 2020, the Court of Appeals denied the request for joinder and on February 21, 2020, Enel Distribución Chile S.A. filed another appeal. In this regard, the Court of Appeals of Santiago gave notice to the Superintendency - dated February 27, 2020 - requesting its opinion on the matter. On March 12, 2020, it was certified that the Superintendency did not respond. On March 18, 2020, by means of a writ containing a petition that due note should be taken, Enel Distribución Chile S.A. suggested to the Court of Appeals certain points on which its decision to accept our motion for reconsideration should be based. On July 23, 2020, the court resolved to grant another hearing in respect of case 339-2018, joining the hearing of these two cases. On July 29, 2020, Enel Distribución Chile S.A. deposited the expert's money, thus fulfilling the obligation to pay the expert's fee. On August 5, 2020, the court noted that the payment was made and requested certification from the clerk of the court to determine whether the entire obligation regarding the payment of the expert had been fulfilled. On August 20, 2020, Enel Distribución Chile S.A. requested that the funds corresponding to the expert's services be transferred to the name of the expert and that the check be drawn. On August 21, 2020, the court pointed out that there were inconsistencies between the amounts and the deposit and asked for clarification. On August 26, 2020, Enel Distribución Chile S.A. filed a written statement clearing up such inconsistencies. On September 21, 2020, the court deemed the order to have been complied with, requesting the corresponding certification, certifying that the money was ready to be delivered to the expert on September 24, 2020. On October 2, 2020, it was finally resolved that the check had to be issued to the expert as payment for his report, which was delivered to the expert on November 16, 2020. 8. By means of Exempt Resolution No. 24,821 dated July 23, 2018, the Superintendency of Electricity and Fuels confirmed the fine imposed on Enel Distribución Chile S.A. of 10,000 UTM, (ThCh$510,290), when it issued a ruling against the request for reconsideration filed against Exempt Resolution No. 21,790 dated December 29, 2017 because it determined that Enel Distribución Chile S.A did not provide adequate and timely customer service during the power outage that occurred on July 15, 2017 (the snowstorm event), which resulted from not having adequate customer service and information systems. In opposition to this resolution, Enel Distribución Chile S.A filed an appeal with the Court of Appeals of Santiago on August 7, 2018. On February 1, 2019 Enel Distribución Chile S.A presented a list of witnesses, and such evidence was received on February 8, 2019, when Enel Distribución Chile S.A also requested a hearing for the appointment of an expert. The request was accepted and the Court hearing was scheduled for February 13, 2019. On February 28, 2019, Enel Distribución Chile S.A requested again that the Court appoint an expert, following the non-appearance of the counterparty at the hearing to designate an expert. On March 7, 2019, an expert was appointed, who accepted the appointment and proposed his fees on March 17, 2019. The Court acknowledged the acceptance of the appointment in a resolution dated March 25, 2019. On September 6, 2019, Enel Distribución Chile S.A recorded 50% of the expert’s fees, which the Court made effective on September 24, 2019. On November 27, 2019, the expert received the corresponding payment. On March 24, 2020, the Court of Appeals of Santiago suspended the procedure ex officio, based on the health emergency. On April 18, 2020, the appointed expert witness submitted his report, which was deemed to have been submitted on May 26, 2020, date on which the procedure resumed and the clerk was requested to certify whether the trial period had expired. On June 2, 2020 the expiration was certified, leaving the case ready to be reported on by the reporting judge. On June 22, 2020, Enel Distribución Chile S.A. submitted to the court the joinder request made in case IC No. 340-2018, determining in this case a schedule for the hearing of case IC No. 340-2018 on July 23, 2020. On July 29, 2020, money was deposited for the expert, which was requested on August 20, 2020, and it was resolved on September 11, 2020, that prior to the drawing of the check it was necessary to certify whether the corresponding amount was deposited, which was certified by the secretary of the court on October 8, 2020. Finally, in view of what was already certified, the drawing of the check was requested again on October 22, 2020, and the check was delivered to the expert on November 16, 2020 9. By means of Exempt Resolution No. 24,246 dated June 13, 2018, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 2,000 UTM (ThCh$102,058) for operating its facilities in violation of current electrical regulations, by not maintaining its facilities in good condition, as evidenced by the electric shock produced in the insulator of portal No. 74 of the 110 Kv Cerro Navia-Lo Prado line, attributed to contamination from bird droppings, which affected the electricity supply of customers for more than 2 hours. In opposition to this resolution, Enel Distribución Chile S.A filed a request for reconsideration, which was rejected by Exempt Resolution No. 28,857 dated April 23, 2019. On May 14, 2019, an appeal was filed with the Court of Appeals of Santiago. On June 5, 2019, a resolution was issued that received the appeal and requested a report from the Superintendency of Electricity and Fuels. On July 24, 2019, the Superintendency of Electricity and Fuels issued a report, and the claim was ready to be heard on August 20, 2019. On October 29, 2019, the allegations of the parties were heard and subsequently, on December 6, 2019, the Court of Appeals of Santiago issued a ruling rejecting the appeal filed. On December 18, 2019, Enel Distribución Chile S.A. filed an appeal requesting a hearing and judgment with the Supreme Court. On January 15, 2020, arguments were heard, the case was ready for judgment and Judge Sergio Muñoz Gajardo was appointed to draft the ruling. On May 25, 2020, the Supreme Court issued its ruling, confirming the fine imposed by the Superintendency. On October 28, 2020, the judgment of the Supreme Court was ordered for compliance. The payment of the fine is pending. 10. By means of Exempt Resolution No. 31,912, dated February 20, 2020, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 1,000 UTM (approx. ThCh$51,029), because it considered that Enel Distribución Chile S.A. had not complied with its obligation to maintain the medium voltage poles located in the district of Cerro Navia in good condition. Likewise, the Superintendency considered that Enel Distribución Chile S.A. committed a second violation when it found that connection conductors of circuits were not protected against current overloads, located in the same district. Against this resolution, Enel Distribución Chile S.A. filed an appeal before the Court of Appeals of Santiago, which was heard in IC No. 142-2020, and was the subject of a procedural order on April 21, 2020, requesting a report from the Superintendency, which issued it on April 28, 2020. The case was ready to be reported on by the reporting judge on May 4, 2020, and on July 21, 2020, the arguments of the case were heard, and the case was ready for judgment. On July 29, 2020, the court rejected Enel Distribución Chile S.A.'s arguments On August 10, 2020, the judgment of the Court of Appeals was appealed. On September 8, 2020, Enel Distribución Chile S.A. filed an appeal with the Supreme Court under case number 119225-2020, and it was ready to be reported on by the reporting judge since September 24, 2020, and on September 29, 2020, pleadings were scheduled for October 5, 2020. On that date, pleadings were held, where the ruling of the Court of Appeals was finally confirmed. On November 9, 2020, the Supreme Court's sentence was ordered for compliance. The payment of the fine is pending. 11. By means of Exempt Resolution No. 21,789 dated December 29, 2017, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 20,000 UTM (approximately ThCh$1,020,580), for providing erroneous information to the regulatory body regarding the supply restoration, in relation to the outage that occurred on July 15, 2017 (snowstorm). Enel Distribución Chile S.A. filed a request for reconsideration against this resolution, which was partially accepted in Exempt Resolution No. 32,515, setting the fine at 10,000 UTM (ThCh$ 510,290). An appeal against this resolution was filed with the Court of Appeals of Santiago under Case Number 450-2020 on August 19, 2020, certifying the necessary judicial deposit for this type of claims on September 24, 2020. On October 2, 2020, the claim was processed, and a report was requested from the Superintendency on October 6, 2020, which was issued on October 20, 2020, and the case entered the reporting stage on October 21, 2020. Subsequently, the case was subject to hearing on November 25, 2020, where parties declared their arguments o To date, this case remains ready for judgment to date. 12. By means of Exempt Resolution No. 27,005 dated December 28, 2018 (received on January 28, 2019) the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 16,911 UTM (ThCh$862,951), for estimating that Enel Distribución Chile S.A. exceeded the standard established in the supply continuity index for the period 2015-2016. Enel Distribución Chile S.A. filed a request for reconsideration against this resolution, which was rejected in Exempt Resolution No. 32,760. Consequently, an appeal was filed against this resolution with the Court of Appeals of Santiago under Case Number 493-2020 on September 9, 2020. On September 10, 2020, a brief was submitted, which stated that the judicial deposit could not be made due to the computer problem of Banco Estado, accompanying a certificate from Banco Estado that reported the situation. On September 29, 2020, the deposit slip was attached. On October 5, 2020, the court requested that the deposit was certified, confirming that the deposit did not appear until October 7, 2020. On October 9, 2020, the court resolved that prior to issuing a procedural resolution, the deposit should be accounted for, resolution of which was sent on October 14, 2020, providing an additional certification that the amount had been deposited, and certifying on October 21, 2020 that the amounts had indeed been deposited. On October 26, 2020, the court again issued a warning, requesting Enel Distribución Chile S.A. to report the date on which it was notified of the resolution it was appealing. Enel Distribución Chile S.A. complied with the court's order on October 29, 2020. 13. By means of Exempt Resolution No. 32,555 dated May 13, 2020, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 10,000 UTM (approx. ThCh$510,290), because it considered that Enel Distribución Chile S.A. operated its owned facilities in violation of the electric regulations in force, by failing to maintain in good condition its facilities 11Kv El Salto- Almendros line on July 28, 2018, affecting 233,000 customers with this action. In addition, the resolution also included a penalty for delivering erroneous information to the National Electric Coordinator. Enel Distribución Chile S.A. filed a request for reconsideration, which was rejected by the authority through Exempt Resolution No. 33,230 dated August 31, 2020. Consequently, an appeal against such resolution was filed with the Court of Appeals of Santiago under Case Number 524-2020 on September 16, 2020. On September 24, 2020, Enel Distribución Chile S.A. was warned to correct the petition of the written document since the Exempt Resolution had been misidentified, and on September 29, 2020, Enel Distribución Chile S.A. complied with the order. On October 6, 2020, it was certified that the money required to file the claim had been deposited. On October 9, 2020, the court again determined that the resolution dated September 24, 2020 had to be fully complied with, and therefore requested that Enel Distribución Chile S.A. complied with the order to set the date of notification of Resolution No. 332,030. Once the order was complied with on October 14, 2020, the court determined on October 29, 2020 that the claim was untimely, and therefore declared it inadmissible. On November 3, 2020, Enel Distribución Chile S.A. filed an alternative appeal to this resolution, which was rejected by the court on November 5, 2020, and consequently, the case was submitted to the Supreme Court for review of the admissibility of the claim. On November 20, 2020, the case was submitted to the Supreme Court under Case Number 138642-2020 of the Supreme Court. On December 1, 2020, the case was heard, and during the same day the court issued its judgment, in which Enel Distribución Chile S.A.’s arguments were rejected. However, the Supreme Court emended the decision of the Court of Appeals because, in its view, the deadlines were not appropriately calculated. As a result, given the criterion that was used by the Supreme Court, it was understood that the claim was filed within the deadline; therefore, it was declared to be admissible. On December 21, 2020, the Court of Appeals issued the order of enforcement. 14. By means of Exempt Resolution No. 33,048 dated August 5, 2020, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 1000 UTM (approx. ThCh$51,029), for considering that Enel Distribución S.A. is responsible for the poor condition of the power lines at 584 Atom Street, Maipú, for not maintaining the power poles in good condition which, in the Superintendency 's opinion, caused injuries to a 3-year old child and an 18-year old boy, who had indirect contact with the power lines. Enel Distribución Chile S.A. filed a request for reconsideration against this resolution, which was rejected by Exempt Resolution No. 33,404 dated October 7, 2020. Consequently, an appeal was filed against such resolution with the Court of Appeals of Santiago under Case Number 673-2020 on October 31, 2020, certifying the necessary deposit for this type of claim on November 6, 2020. 15. By means of Exempt Resolution No. 32,976 dated July 24, 2020, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 40,000 UTM (ThCh$2,041,160), for considering that Enel Distribución Chile S.A. did not comply with the provisions of Article 72-14 of the Electric Services Law, violation that occurred when it did not have the measurement of 80% of its feeders, within 18 months from the publication of the technical standard of service quality for the distribution system in the Official Gazette. Enel Distribución Chile S.A. filed a request for reconsideration, which was rejected by Exempt Resolution No. 33,498 dated October 27, 2020. Consequently, an appeal was filed against such resolution with the Court of Appeals of Santiago under Case Number 711-2020 on November 13, 2020, and the necessary deposit for this type of appeal was certified on November 17, 2020. On November 18, 2020, the claim was processed, requesting a report from the Superintendency, which was issued on December 1, 2020, and the case decision was referred to the reporting judge on December 4, 2020, and its hearing was scheduled for December 16, 2020. The hearing of the case was suspended by the Superintendency on December 15, 2020, pending its return to the docket. In relation to the litigation proceedings described above, the Group has established provisions for ThCh$10,882,854 as of December 31, 2020 (see Note 25). There are other sanctions that also have associated provisions but they are not described in this note since they individually represent immaterial amounts. Management believes that the provisions recorded adequately cover the risks due to penalties. Therefore, they do not expect additional liabilities to arise from other than those already registered. Because of the characteristics of the risks covered by these provisions, it is not possible to determine a reasonable payment schedule, if any. 36.4. Financial restrictions. Several debt contracts of the Company, and of some of its subsidiaries include the obligation to comply with certain financial ratios, which is common in contracts of this nature. There are also affirmative and negative covenants that require monitoring of these commitments. In addition, there are restrictions in the sections of events of default that must be fulfilled to avoid acceleration of the debt. 1. Cross Default Some of the financial debt contracts contain cross default clauses. Enel Chile's committed international credit facility under the law of the State of New York, entered into in June 2019 and expiring in June 2024, indicates that cross default for non-payment could be triggered by another debt of the same company, for any amount in default, provided that the principal amount of the debt giving rise to the cross default exceeds US$150 million in an individual debt, or its equivalent in other currencies. To accelerate the debt under this facility due to cross default on other debt, the amount in default on an individual debt must exceed US$150 million, or its equivalent in other currencies, and other conditions must also be satisfied, including the expiration of grace periods (if any in the defaulted contract), and a formal notice of the intention to accelerate the debt by creditors representing more than 50% of the amount due or committed under each contract. As of December 31, 2020, this credit line was not disbursed. For Enel Chile's bonds registered with the Securities and Exchange Commission ("SEC") of the United States of America, commonly referred to as "Yankee Bonds", cross default for non-payment could be triggered by other debt of the same company, or any of its Chilean subsidiaries, for any amount in default, provided that the principal amount of the debt giving rise to the cross default exceeds US$ 150 million in an individual debt, or its equivalent in other currencies. Acceleration of the debt due to cross default is not automatic but must be required by the holders of at least 25% of the bonds of a certain series of Yankee Bonds. Enel Chile's Yankee Bond matures in 2028. At December 31, 2020, the amount due on the Yankee Bond totals ThCh$697,736,223. For Enel Generación Chile's bonds registered with the Securities and Exchange Commission ("SEC") of the United States of America, commonly referred to as "Yankee Bonds", cross default for non-payment could be triggered by other debt of Enel Generación Chile, or any of its Chilean subsidiaries, for any amount in default, provided that the principal amount of the debt giving rise to the cross default exceeds US$ 30 million in an individual debt, or its equivalent in other currencies. Acceleration of debt due to cross default is not automatic but must be required by the holders of at least 25% of the bonds of a certain series of Yankee Bonds. Enel Generación Chile's Yankee Bonds mature in 2024, 2027, 2037 and 2097. In the case of the Yankee Bond maturing in 2024 (issued in April 2014), the principal amount of the debt individually giving rise to the cross default is US$50 million, or its equivalent in other currencies. As of December 31, 2020, the amount due on the Yankee Bonds totals ThCh$510,368,873. Enel Generación Chile's bonds issued in Chile stipulate that cross default can be triggered only by the Issuer's own default, in cases where the amount in default exceeds US$ 50 million in an individual debt, or its equivalent in other currencies. In turn, the acceleration must be required at a bondholders' meeting by the holders of at least 50% of the bonds of a given series. As of December 31, 2020, the amount owed for local bonds totals ThCh$283,294,982. The bank borrowing that Enel Green Power Chile subscribed in February 2017 for US$30 million stipulates that cross default is triggered by default of the Debtor itself, i.e. Enel Green Power Chile, or of any material subsidiary, as contractually defined. To accelerate this debt due to cross default originating from other debt, the amount in default, whether on an individual debt or at the aggregate debt level, must exceed US$50 million, or its equivalent in other currencies. As of December 31, 2020, the amount outstanding on this borrowing totals ThCh$21,354,969. Enel Distribución Chile's uncommitted credit lines stipulate that cross default may be triggered by a default of the Issuer's own individual debt in any obligation contracted in favor of any creditor. Upon the occurrence of the event of default, the bank will communicate to Enel Distribución Chile about the termination of the credit line. As of December 31, 2020, these credit lines were not disbursed. 2. Financial covenants Financial covenants are contractual commitments with respect to minimum or maximum financial ratios that the Company is obliged to meet at certain periods of time (quarterly, annually, etc.) and in some cases only when certain conditions are met. Most of the financial covenants of the Company limit leverage and track the ability to generate cash flow that will service the companies’ indebtedness. Certain companies are also required to periodically certify these covenants. The types of covenants and their respective limits vary according to the type of debt and contract. The Enel Generación Chile’s bonds issued in Chile include the following financial covenants, whose definitions and calculation formulas are set out in the respective contracts: H Series - Consolidated Indebtedness Level: The Financial Obligations to Total Capitalization ratio must remain equal to or less than 0.64. Financial Obligations is the sum of Current interest-bearing loans, Non-current interest-bearing loans, Other current financial liabilities, Other non-current financial liabilities, and Other obligations secured by the Issuer or its subsidiaries, while Total Capitalization is the sum of Financial Obligations and Total Equity. As of December 31, 2020, the Indebtedness Level was 0.31. - Consoli

Headcount

Headcount	12 Months Ended
	Dec. 31, 2020
HEADCOUNT
Headcount	37. Enel Chile's personnel, as of December 31, 2020 and 2019, is as follows: 8 12-31-2020 Country Managers Professionals Staff and Total Chile 55 2,025 117 2,197 Argentina — 5 17 22 Total 55 2,030 134 2,219 Average 54 2,010 138 2,202 12-31-2019 Country Managers Professionals Staff and Total Chile 56 1,915 139 2,110 Argentina — 6 17 23 Total 56 1,921 156 2,133 Average 58 1,887 159 2,104

Sanctions

Sanctions	12 Months Ended
	Dec. 31, 2020
SANCTIONS
Sanctions	38. SANCTIONS. The following Group companies have received sanctions from administrative authorities: 1. Enel Generación Chile S.A. As of December 31, 2020, the request for reconsideration of the sanction proceedings initiated by the Bío Bío Regional Health Ministry, by Act 180566, which imposed a fine in the amount of 500 UTM (ThCh$25,515), for alleged breaches by Enel Generación Chile S.A. of obligations and regulations related to waste disposal regulations in the Cantarrana landfill is pending. As of December 31, 2020, the Valparaíso Regional Health Ministry initiated sanction proceedings with respect to inspection report No. 1705213, for alleged breaches of obligations and regulations related to the Noise Exposure Protocols and other health surveillance regulations at the Quintero plant. The amount of this fine is 500 UTM (ThCh$25,515). As of December 31, 2020, the Tarapacá Regional Health Ministry initiated sanction proceedings under inspection report No. 000766, in the amount of 500 UTM (ThCh$25,515), for the alleged breach by Celta in the use of lime in the Tarapacá Thermal Power Station, which is pending resolution. As of December 31, 2020, the Coquimbo Regional Health Ministry initiated sanction proceedings under inspection report No. 10066, dated June 21, 2016, in the amount of 500 UTM (ThCh$25,515) for the alleged violation committed by Gasatacama, currently Enel Generación Chile, for keeping waste in an unauthorized area, which is pending resolution. As of December 31, 2020, the Regional Health Ministry of the Metropolitan Region initiated sanction proceedings under Exempt Resolution No. 20131261, in the amount of 50 UTM (ThCh$2,551), for the alleged violation of health regulations due to COVID-19, which is pending resolution. 2. Enel Distribución Chile S.A. By means of Exempt Resolution No. 13,630 dated May 23, 2016, the Superintendency of Electricity and Fuels imposed on Enel Distribution Chile S.A. a fine equivalent to 2,000 UTM (ThCh$102,058) for Enel Distribución Chile S.A.’s failure to fulfill its obligation to maintain its electrical installations in good condition to meet quality requirements and supply continuity, with regard to the fire that affected the San Joaquin substation on May 19, 2015. Enel Distribución Chile S.A. has filed a request for reconsideration against this fine, which is pending of resolution. By means of Exempt Resolution No. 32,918 dated July 14, 2020, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 10,000 UTM (ThCh$510,290), alleging that on March 7, 2019 it failed to comply with its duty to maintain the electric service by disconnecting the 12 KVN1 bus and the transfer busbar in Substation Brasil, due to the failure of the electric arc caused by a closing maneuver and subsequent opening of a connector under load, by field personnel, during the performance of works in the substation. Enel Distribución Chile S.A. filed a request for reconsideration against this fine, which is pending resolution. By means of Exempt Resolution No. 33,196 dated August 25, 2020, the Superintendency of Electricity and Fuels imposed a fine on Enel Distribución Chile S.A. of 22,000 UTM (ThCh$1,122,638), alleging that it did not comply with Article 4-2 on technical quality standards for distribution services, which is evidenced by the information provided by Enel Distribución Chile S.A. in the proceeding referred to as "2018 Outages", which indicates that it has exceeded the maximum SAIDI limit, established in the current standards in at least 4 municipalities. Enel Distribución Chile S.A. filed a request for reconsideration against this fine, which is pending resolution. In relation to the sanctions described above, the Group has established provisions for ThCh$1,839,490 as of December 31, 2020 (see Note 25). There are other sanctions that also have associated provisions but they are not described in this note since they individually represent smaller amounts. Management believes that the provisions recorded adequately cover the risks due to penalties. Therefore, they do not expect additional liabilities to arise from other than those already registered.

Environment

Environment	12 Months Ended
	Dec. 31, 2020
ENVIRONMENT
Environment	39. Environmental expenses for the years ended December 2020, 2019 and 2018, are as follows: 12-31-2020 12-31-2019 Disbursing Company Project Name Environmental Description Project status [Finished, in progress] Disbursement amount Capitalized amount Expense amount Future disbursement amount Estimated date of future disbursement Total disbursements Amount of prior period disbursement Pehuenche PEHUENCHE CENTRAL Waste Management In progress 13,128 — 13,128 19,298 12-31-2021 32,426 3,165 Environmental Sanitation In progress 3,528 — 3,528 5,334 12-31-2021 8,862 1,988 Materials Environment In progress 4,993 — 4,993 24,720 12-31-2021 29,713 9,061 Campaigns and Studies In progress 4,235 — 4,235 6,180 12-31-2021 10,415 — Enel Distribución Chile S.A. VEGETATION CONTROL IN AT NETWORKS It consists of cutting branches until reaching the safety conditions that the foliage must be left with respect to the drivers. Completed 305,701 — 305,701 — 12-31-2020 305,701 2,600 This activity contemplates the maintenance of the band of easement of high voltage lines between 34,5 y 500kv. Completed 303,873 — 303,873 — 12-31-2020 303,873 67,291 VEGETATION CONTROL IN MT/BT Pruning of trees near the media network and low voltage. Completed 3,296,066 — 3,296,066 — 12-31-2020 3,296,066 3,507,502 IMPROVEMENTS IN THE MT NETWORK Replacement underground transformers by Technical Standard (PCB) Completed 91,353 91,353 — — 12-31-2020 91,353 170,077 REPLACE TRAFOS TRIFAS MEJ QUALITY BT This project corresponds to: Completed 3,649,294 3,649,294 — — 12-31-2020 3,649,294 1,168,343 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Completed 340,704 — 340,704 — 12-31-2020 340,704 64,737 RESPEL MANAGEMENT Hazardous waste removal and treatment management Completed 19,122 — 19,122 — 12-31-2020 19,122 103,847 SEC STANDARDIZATION PROJECT (CAPEX) Maintenance of trees, SSEE and removal of weeds, debris and garbage, exterior perimeter. Completed 1,774,155 1,774,155 — — 12-31-2020 1,774,155 ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in the Metropolitan Park. Completed 1,374 — 1,374 — 12-31-2020 1,374 2,337 OIL ANALYSIS AT POWER TD (OPEX) The waste material was removed and transferred to a dump from a Substation. Completed 32,096 — 32,096 — 12-31-2020 32,096 — Enel Generación Chile S.A. ENVIRONMENTAL EXPENSES CC.CC. The main expenses incurred are: Operation and maintenance, monitoring air quality and meteorological stations, Environmental audit monitoring network once a year, Annual CEMS Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Isokinetic Measurements, SGI Works (NC objective, inspections, audits and supervision) ISO 14001, OHSAS certification, CEMS operation and maintenance service. In progress 595,987 95,976 500,011 599,144 12-31-2021 1,195,131 2,307,825 ENVIRONMENTAL EXPENSES CC.TT. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 2,048,635 158,028 1,890,607 1,520,333 12-31-2021 3,568,968 7,151,486 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric plants (C.H.) In progress 263,737 — 263,737 — 12-31-2020 263,737 759,980 Enel Green Power Chile S.A. Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 84,113 — 84,113 148,447 12-31-2021 232,560 33,841 Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 46,957 — 46,957 104,448 12-31-2021 151,405 36,175 Water Analysis Monitoring and analysis of drinking water and sewage In progress — — 35,266 44,588 12-31-2021 — — Rent/Vehicle Expenses Vehicle rental for environmental trips (field visits / Plants) In progress 51,716 — 51,716 66,741 12-31-2021 118,457 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 189,321 — 189,321 355,550 12-31-2021 544,871 147,392 Technical Counterpart Environmental Studies Technical Counterpart Environmental Studies In progress — — — 5,287 12-31-2021 5,287 — Environmental Materials Buy environmental materials (containers, spill kit, others) In progress 32,032 — 32,032 40,578 12-31-2021 72,610 4,822 Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 8,066 — 8,066 31,591 12-31-2021 39,657 17,629 Outsourced Services Other services (contracts with third parties) In progress 222,291 — 222,291 297,167 12-31-2021 519,458 53,970 Travel Environment Tickets - accommodation and viatics for site visit in facilities In progress 56,820 — 56,820 85,150 12-31-2021 140,368 — Geotérmica del Norte S.A. Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 21,992 — 21,992 32,918 12-31-2021 54,910 — Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 6,500 — 6,500 14,319 12-31-2021 20,819 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 313,280 — 313,280 339,170 12-31-2021 652,450 — Environmental Materials Buy environmental materials (containers, spill kit, others) In progress 91 — 91 3,559 12-31-2021 3,650 — Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 4,816 — 4,816 1,324 12-31-2021 6,140 — Parque Eólico Talinay Oriente S.A. Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 13,064 — 13,064 18,580 12-31-2021 31,644 11,865 Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 6,939 — 6,939 4,109 12-31-2021 11,048 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 76,595 — 76,595 — 12-31-2021 76,595 63,666 Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 2,087 — 2,087 — 12-31-2021 2,087 1,738 Almeyda Solar SpA Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 39,521 — 39,521 31,508 12-31-2021 71,029 37,904 Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 33,992 — 33,992 36,542 12-31-2021 70,534 33,467 Water Analysis Monitoring and analysis of drinking water and sewage In progress — — — 24,435 12-31-2020 24,435 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 63,736 — 63,736 64,160 12-31-2021 127,896 121,506 Environmental Materials Buy environmental materials (containers, spill kit, others) In progress 16,663 — 16,663 28,702 12-31-2021 45,365 394 Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 8,149 — 8,149 12,795 12-31-2021 20,944 17,419 Total 14,046,722 5,768,806 8,313,182 3,966,677 17,967,209 15,902,027 12-31-2019 Disbursing Company Project Name Environmental Description Project status [Finished, in progress] Disbursement amount Capitalized amount Expense amount Future disbursement amount Estimated date of future disbursement Total disbursements Pehuenche PEHUENCHE CENTRAL Waste Management In progress 3,165 - 3,165 - - 3,165 Environmental Sanitation In progress 1,988 - 1,988 - - 1,988 CURILLINQUE CENTRAL Campaigns and Studies In progress 9,061 - 9,061 - - 9,061 Environmental Sanitation In progress 882 - 882 - - 882 LOMA ALTA CENTRAL Environmental Sanitation In progress 882 - 882 - - 882 Enel Distribución Chile S.A. CHANGE OF TRAD X CALPE NETWORK Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 1,476,780 1,476,780 - - 12-31-2019 1,476,780 VEGETATION CONTROL IN AT NETWORKS It consists of cutting branches until reaching the safety conditions that the foliage must be left with respect to the drivers. Completed 2,600 - 2,600 - 12-31-2019 2,600 This activity contemplates the maintenance of the band of easement of high voltage lines between 34,5 y 500kv. Completed 67,291 - 67,291 - 12-31-2019 67,291 VEGETATION CONTROL IN MT/BT Pruning of trees near the media network and low voltage. Completed 3,507,502 - 3,507,502 - 12-31-2019 3,507,502 The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Completed 64,737 - 64,737 - 12-31-2019 64,737 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of weeding and weed control in electrical power substation enclosures in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. Completed 19,706 - 19,706 - 12-31-2019 19,706 The removal and transfer to waste dump from a Substation was carried out. Completed 21,719 - 21,719 - 12-31-2019 21,719 MANEJO AMBIENTAL Environmental Management of Reforestation in Metropolitan Park. Completed 2,337 - 2,337 - 12-31-2019 2,337 MEJORAS EN LA RED MT Replacement of MT network with protected cable In progress 170,077 170,077 - - 12-31-2019 170,077 GESTIÓN DE RESPEL Hazardous waste removal and treatment management Completed 103,847 103,847 - 12-31-2019 103,847 REPLACE TRIFAS TRIFAS MEJ QUALITY BT Replacement of transformers with chargeability problems In progress 1,168,343 1,168,343 - - 12-31-2019 1,168,343 REPLACEMENT TD DAE CONCENTRICA X TD. TRIF. RED CALPE Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 492,260 492,260 - - 12-31-2019 492,260 Enel Generación Chile S.A. ENVIRONMENTAL MONITORING Environmental Monitoring Contract with SK Ecology, operation and maintenance CEMS. In progress 576,519 - 576,519 - - 576,519 CEMS STANDARDIZATION Warehouse standardization, environmental management, regularization of environmental impact assessment (EIA) In progress 207,966 207,966 - - - 207,966 HYDRAULIC CENTRALS Waste management and sanitation In progress 2,315 - 2,315 - - 2,315 ENVIRONMENTAL EXPENSES CC.CC. The main expenses incurred are: Bocamina U1-2: Operation and maintenance, monitoring air quality and meteorological stations, Environmental audit monitoring network once a year, CEMS Annual Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Measurements Isokineticas, Trabajos SGI (NC objective, inspections, audits and supervision) ISO 14001, OHSAS certification, CEMS operation and maintenance service. In progress 1,452,158 855,667 596,491 855,667 12-31-2020 2,307,825 ENVIRONMENTAL EXPENSES CC.TT. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 5,387,657 1,763,829 3,623,828 1,763,829 12-31-2020 7,151,486 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric plants (C.H.) In progress 339,103 - 339,103 420,877 12-31-2020 759,980 CENTRAL QUINTERO CEMS Central Quinteros In progress 458,001 110,923 347,078 37,983 12-31-2020 495,984 Enel Green Power del Sur Spa. Carrera Pinto Waste Management Completed 4,432 - 4,432 - - 4,432 Environmental Sanitation Completed 6,466 - 6,466 - - 6,466 Wastewater Treatment Plant Completed 4,436 - 4,436 - - 4,436 Finis Terrae Waste Management Completed 10,954 - 10,954 - - 10,954 Environmental Sanitation Completed 7,674 - 7,674 - - 7,674 Wastewater Treatment Plant Completed 2,154 - 2,154 - - 2,154 La Silla Environmental Sanitation Completed 2,902 - 2,902 - - 2,902 Los Buenos Aires Waste Management Completed 1,509 - 1,509 - - 1,509 Campaigns and Studies Completed 20,613 - 20,613 - - 20,613 Environmental Sanitation Completed 3,989 - 3,989 - - 3,989 Wastewater Treatment Plant Completed 882 - 882 - - 882 Materials Environment Completed 5,589 - 5,589 - - 5,589 Pampa Norte Waste Management Completed 5,098 - 5,098 - - 5,098 Environmental Sanitation Completed 6,618 - 6,618 - - 6,618 Wastewater Treatment Plant Completed 3,459 - 3,459 - - 3,459 Renaico Waste Management Completed 2,281 - 2,281 - - 2,281 Campaigns and Studies Completed 83,820 - 83,820 - - 83,820 Environmental Sanitation Completed 5,226 - 5,226 - - 5,226 Wastewater Treatment Plant Completed 982 - 982 - - 982 Materials Environment Completed 4,822 - 4,822 - - 4,822 Outsourced Services Completed 53,970 - 53,970 - - 53,970 Sierra Gorda Waste Management Completed 13,999 - 13,999 - - 13,999 Campaigns and Studies Completed 42,959 - 42,959 - - 42,959 Environmental Sanitation Completed 3,300 - 3,300 - - 3,300 Wastewater Treatment Plant Completed 127 - 127 - - 127 Empresa Electrica Panguipulli S.A. Chañares Waste Management Completed 1,613 - 1,613 - - 1,613 Campaigns and Studies Completed 7,981 - 7,981 - - 7,981 Environmental Sanitation Completed 5,262 - 5,262 - - 5,262 Wastewater Treatment Plant Completed 5,591 - 5,591 - - 5,591 Lalackama Waste Management Completed 1,678 - 1,678 - - 1,678 Environmental Sanitation Completed 7,091 - 7,091 - - 7,091 Wastewater Treatment Plant Completed 3,273 - 3,273 - - 3,273 Pilmaiquen Waste Management Completed 1,450 - 1,450 - - 1,450 Environmental Sanitation Completed 6,822 - 6,822 - - 6,822 Pullinque Waste Management Completed 785 - 785 - - 785 Campaigns and Studies Completed 2,627 - 2,627 - - 2,627 Environmental Sanitation Completed 4,129 - 4,129 - - 4,129 Materials Environment Completed 394 - 394 - - 394 Talinay Poniente Campaigns and Studies Completed 46,026 - 46,026 - - 46,026 Parque Eolico Tal Tal S.A. Taltal Waste Management Completed 10,745 - 10,745 - - 10,745 Campaigns and Studies Completed 44,656 - 44,656 - - 44,656 Environmental Sanitation Completed 2,476 - 2,476 - - 2,476 Wastewater Treatment Plant Completed 2,515 - 2,515 - - 2,515 Parque Eolico Valle De Los Vientos S.A. Valle de los Vientos Waste Management Completed 11,546 - 11,546 - - 11,546 Campaigns and Studies Completed 20,216 - 20,216 - - 20,216 Environmental Sanitation Completed 2,471 - 2,471 - - 2,471 Parque Eolico Talinay Oriente S.A. Talinay Oriente Waste Management Completed 11,865 - 11,865 - - 11,865 Campaigns and Studies Completed 63,666 - 63,666 - - 63,666 Environmental Sanitation Completed 9,419 - 9,419 - - 9,419 Wastewater Treatment Plant Completed 1,738 - 1,738 - - 1,738 Almeyda Solar Spa Diego de Almagro Waste Management Completed 10,087 - 10,087 - - 10,087 Environmental Sanitation Completed 5,216 - 5,216 - - 5,216 Wastewater Treatment Plant Completed 6,040 - 6,040 - - 6,040 Total 12-31-2018 Disbursing Company Project Name Environmental Description Project status [Finished, in progress] Disbursement amount Capitalized amount Expense amount Future disbursement amount Estimated date of future disbursement Total disbursements Pehuenche ENVIRONMENTAL EXPENSES HYDROELECTRIC POWER PLANTS C.H. Pehuenche E E Pehuenche S.A. Supply of flow measurement equipment. In progress 48,574 48,574 - - 48,574 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 62,560 - 62,560 - - 62,560 Enel Distribución Chile S.A. VEGETATION CONTROL IN AT NETWORKS It consists of cutting branches until reaching the safety conditions that the foliage must be left with respect to the drivers. In progress 134,394 - 134,394 19,654 12-31-2018 154,048 Tree pruning near the medium voltage network. In progress 5,790,042 2,472,768 3,317,274 502,599 03-31-2019 6,292,641 RESPEL MANAGEMENT Hazardous waste management. Completed 1,780 - 1,780 - 06-30-2018 1,780 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Completed 15,383 - 15,383 36,633 12-31-2018 52,016 The service consists of weeding and weed control in electrical power substation enclosures in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. En proceso 46,339 - 46,339 568 03-31-2018 46,907 ENVIRONMENTAL PERMITS Environmental Impact Statement: 1) New Lampa Sectioning Substation and 2) Ochagavia - Florida Line, Sanjon La Aguada section. In progress 1,767 1,767 - 5,203 03-31-2019 6,970 VEGETATION CONTROL IN MT / BT NETWORKS Improvement in the traditional network by calpe (pre-assembled aluminum cable) In progress 19,416 19,416 - 373,059 03-31-2019 392,475 IMPROVEMENTS IN THE MT NETWORK Replacement of MT bare network by shielded cable In progress 158,086 158,086 - 18,056 03-31-2019 176,142 CHANGE OF NETWORK TRAD X CALPE Replacement of traditional network by Calpe (Pre-assembled aluminum cable) BT In progress 851,792 851,792 - 530,712 03-31-2019 1,382,504 REPLACEMENT TD DAE CONCENTRICA X TD. TRIF. RED CALPE Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 712,455 712,455 - 295,961 03-31-2019 1,008,416 REPLACEMENT OF TRAFOS TRIFAS QUALITY BT Replacement of transformers with chargeability problems In progress 1,288,155 1,288,155 - 1,353,909 03-31-2019 2,642,064 ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in Cerro Chena and Metropolitan Park. In progress 5,831 - 5,831 803 03-31-2019 6,634 Asbestos removal from underground cables Removal of asbestos flame retardant tape from the MT underground network. In progress 119,277 03-31-2019 383,914 Enel Generación Chile S.A. ENVIRONMENTAL MONITORING Environmental Monitoring Contract with SK Ecology, operation and maintenance CEMS In progress 797,543 - 797,543 - - 797,543 CEMS STANDARDIZATION Winery standardization, environmental management, environmental impact assessment regularization (EIA) In progress 645,302 645,302 - - - 645,302 HYDRAULIC CENTRALS Waste Management e higienización In progress 11,567 - 11,567 - - 11,567 ENVIRONMENTAL EXPENSES CC.TT. The main expenses incurred are: Bocamina U1-2: Operation and maintenance, monitoring air quality and meteorological stations, Environmental audit monitoring network once a year, CEMS Annual Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Measurements Isokineticas, Trabajos SGI (NC objective, inspections, audits and supervision) ISO 14001, OHSAS certification, CEMS operation and maintenance service. In progress 2,102,056 - 2,102,056 - - 2,102,056 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 2,867,523 - 2,867,523 - - 2,867,523 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric plants (C.H.) In progress 183,156 - 183,156 - - 183,156 C.H. RALCO Ralco Plan: Reforestation according to an agreement with the Universidad Católica and electrification of homes in Ayin Maipú. In progress 4,542,216 4,542,216 - - - 4,542,216 CENTRAL QUINTERO CEMS Central Quinteros In progress 417,194 417,194 - - - 417,194 Total

Financial Information of Subsid

Financial Information of Subsidiaries, Summarized	12 Months Ended
	Dec. 31, 2020
FINANCIAL INFORMATION OF SUBSIDIARIES, SUMMARIZED
Financial Information Of Subsidiaries, Summarized	40. As of December 31, 2020, 2019 and 2018, summarized financial information of the Company’s principal consolidated subsidiaries prepared under IFRS is as follows: 12-31-2020 Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Financial Income Income tax Profit (Loss) Other Comprehensive Income Total Comprehensive Income Statements ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Grupo Enel Distribución Chile Consolidated 582,076,850 1,069,130,548 1,651,207,398 394,984,535 355,577,789 900,645,074 1,651,207,398 1,382,068,218 (1,116,324,483) 265,743,735 158,471,761 99,889,095 5,929,058 105,828,440 (23,421,217) 82,407,223 (3,032,588) 79,374,635 Enel Generación Chile Separate 450,585,522 2,568,790,911 3,019,376,433 346,738,652 962,018,025 1,710,619,756 3,019,376,433 1,454,983,823 (906,062,618) 548,921,205 421,458,046 (355,272,815) (47,019,373) (311,920,879) 154,534,331 (157,386,549) 97,628,933 (59,757,615) Enel Distribución Chile Separate 577,456,051 1,060,265,626 1,637,721,677 377,127,464 355,408,175 905,186,038 1,637,721,677 1,378,024,639 (1,115,217,690) 262,806,949 156,516,439 99,162,164 5,643,080 104,815,531 (23,518,908) 81,296,623 (3,031,870) 78,264,753 Empresa Eléctrica Pehuenche S.A. Separate 57,648,247 165,957,367 223,605,614 43,582,095 42,466,077 137,557,442 223,605,614 162,555,069 (29,660,883) 132,894,186 126,117,737 118,664,949 537,780 119,202,729 (32,100,661) 87,102,068 — 87,102,068 Enel Green Power Chile Ltda. Separate — — — — — — — 2,643,361 — 2,643,361 656,694 443,065 (728,828) (285,763) (27,623) (313,386) 32,849,632 32,536,246 Empresa Electrica Panguipulli S.A. Separate — — — — — — — 36,961,169 (1,553,242) 35,407,927 30,644,413 17,824,133 (2,975,352) 14,848,781 (1,094,018) 13,754,763 3,300,577 17,055,341 Geotermica del Norte S.A. Separate 6,236,103 400,007,251 406,243,354 47,175,660 322,246 358,745,448 406,243,354 29,621,783 (1,987,867) 27,633,916 22,284,312 4,542,775 (4,106) 4,538,668 (350,271) 4,188,397 (20,985,401) (16,797,004) Parque Eolico Talinay Oriente S.A. Separate 80,718,677 81,224,769 161,943,446 3,322,615 24,923,743 133,697,088 161,943,446 13,327,199 (215,507) 13,111,692 10,119,202 2,877,967 569,821 3,447,787 (1,028,866) 2,418,922 (7,863,429) (5,444,508) Enel Green Power Chile S.A. Separate 48,915,258 1,536,057,410 1,584,972,668 337,590,586 542,949,053 704,433,029 1,584,972,668 176,960,820 (30,028,125) 146,932,695 119,153,489 72,729,793 (24,394,047) 48,335,747 (14,300,689) 34,035,057 (61,492,284) (27,457,227) Almeyda Solar S.P.A Separate 16,915,219 461,620,519 478,535,738 204,561,234 72,286,638 201,687,866 478,535,738 52,290,734 (2,463,593) 49,827,141 41,553,826 24,434,638 (7,386,090) 17,048,548 (4,556,211) 12,492,337 (21,883,149) (9,390,812) Grupo Enel Green Power Consolidated 139,617,642 2,097,626,417 2,237,244,059 579,459,760 644,053,803 1,013,730,496 2,237,244,059 297,348,087 (12,123,965) 285,224,122 241,778,194 140,591,339 (33,609,299) 106,911,680 (25,014,045) 81,897,635 (63,316,482) 18,581,153 Grupo Enel Generación Chile Consolidated 465,808,355 2,625,152,610 3,090,960,965 347,895,331 1,003,735,347 1,739,330,287 3,090,960,965 1,490,102,269 (811,503,735) 678,598,534 547,442,737 (236,607,867) (46,481,593) (271,116,321) 122,433,670 -148682651 97,437,499 (51,245,152) 12-31-2019 Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Financial Income Income tax Profit (Loss) Other Comprehensive Income Total Comprehensive Income Statements ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Grupo Enel Distribución Chile Consolidated 289,393,933 1,175,550,962 1,464,944,895 317,248,208 301,769,861 845,926,826 1,464,944,895 1,412,871,737 (1,114,936,281) 297,935,456 201,152,462 152,293,464 5,232,127 157,525,602 (38,748,555) 118,777,047 (5,268,320) 113,508,727 Enel Generación Chile Separate 583,721,624 2,934,658,635 3,518,380,259 449,869,095 1,081,712,205 1,986,798,959 3,518,380,259 1,566,647,603 (1,015,974,072) 550,673,531 438,227,197 273,796,017 (61,735,905) 378,925,840 (47,979,392) 330,946,448 (51,590,095) 279,356,353 Enel Distribución Chile Separate 281,307,184 1,166,614,368 1,447,921,552 293,190,807 301,606,886 853,123,859 1,447,921,552 1,409,434,510 (1,113,958,943) 295,475,567 200,130,596 151,879,931 4,770,147 156,650,077 (38,583,882) 118,066,195 (5,258,044) 112,808,151 Empresa Eléctrica Pehuenche S.A. Separate 40,913,391 172,823,608 213,736,999 32,304,951 44,330,262 137,101,786 213,736,999 147,472,130 (19,725,956) 127,746,174 121,631,813 114,117,571 2,230,250 116,442,545 (31,554,368) 84,888,177 — 84,888,177 Enel Green Power Chile Ltda. Separate 93,176,241 728,572,966 821,749,207 148,584,958 26,709,820 646,454,429 821,749,207 17,470,331 (5,891) 17,464,440 2,941,543 1,770,750 (3,819,658) 4,271,982 789,773 5,061,755 47,305,179 52,366,934 Empresa Electrica Panguipulli S.A. Separate 11,883,401 268,737,935 280,621,336 35,237,664 152,717,912 92,665,760 280,621,336 65,392,897 (10,089,283) 55,303,614 45,295,840 25,634,374 (7,544,701) 18,091,741 (3,984,287) 14,107,454 4,145,983 18,253,437 Geotermica del Norte S.A. Separate 21,392,710 389,334,650 410,727,360 34,868,730 316,179 375,542,451 410,727,360 25,736,468 (4,666,032) 21,070,436 16,240,808 985,760 (2,431,778) (1,446,018) (268,161) (1,714,179) 28,824,398 27,110,219 Parque Eolico Talinay Oriente S.A. Separate 75,985,899 91,924,981 167,910,880 3,479,000 25,290,284 139,141,596 167,910,880 12,662,715 (891,215) 11,771,500 8,846,598 1,956,884 1,076,843 3,033,727 (812,645) 2,221,082 10,644,581 12,865,663 Enel Green Power Chile S.A. Separate 190,106,543 732,488,168 922,594,711 54,033,958 534,433,995 334,126,758 922,594,711 144,036,603 (25,778,573) 118,258,030 99,202,697 66,657,147 (23,438,689) 43,218,457 (9,496,203) 33,722,254 25,195,173 58,917,427 Grupo Enel Green Power Consolidated 371,759,514 1,775,791,317 2,147,550,831 377,911,553 773,916,901 995,722,377 2,147,550,831 273,239,617 (26,298,083) 246,941,534 204,174,344 115,016,205 (42,962,825) 71,875,897 (16,890,333) 54,985,564 122,991,836 177,977,400 Grupo Enel Generación Chile Consolidated 591,085,044 2,996,113,733 3,587,198,777 488,183,716 1,125,160,667 1,973,854,394 3,587,198,777 1,638,374,434 (834,936,802) 803,437,632 669,742,608 280,918,860 (58,362,079) 224,783,599 (23,457,536) 201,326,063 (55,986,126) 145,339,937 Grupo GasAtacama Chile S.A. Consolidated - - - - - — — 186,194,326 (54,061,747) 132,132,579 110,016,642 (107,102,417) 1,143,576 (103,917,448) 56,076,224 -47841224 (4,396,031) (52,237,255) 12-31-2018 Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Financial Income Income tax Profit (Loss) Other Comprehensive Income Total Comprehensive Income Statements ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Grupo Enel Distribución Chile Consolidated 296,453,470 982,926,699 1,279,380,169 450,182,594 63,065,351 766,132,224 1,279,380,169 1,263,224,070 (972,499,916) 290,724,154 200,614,083 159,259,319 6,088,801 165,348,120 (42,967,123) 122,380,997 (600,422) 121,780,574 Enel Generación Chile Separate 548,220,314 2,725,004,288 3,273,224,602 569,928,285 938,139,970 1,765,156,347 3,273,224,602 1,454,348,386 (1,051,644,602) 402,703,785 300,148,133 226,154,177 (49,980,539) 378,187,852 (42,255,124) 335,932,728 (101,720,204) 234,212,523 Enel Distribución Chile Separate 288,632,068 975,441,251 1,264,073,319 424,550,547 62,721,352 776,801,421 1,264,073,320 1,259,689,827 (971,366,398) 288,323,429 199,676,810 159,625,438 5,418,883 165,044,321 (43,812,619) 121,231,702 (598,985) 120,632,717 Empresa Eléctrica Pehuenche S.A. Separate 51,279,432 179,693,183 230,972,615 44,459,384 46,238,192 140,275,039 230,972,615 162,768,188 (21,539,174) 141,229,015 135,558,558 128,068,159 224,543 128,348,399 (34,669,191) 93,679,208 — 93,679,208 Enel Green Power Chile Ltda. Separate 162,710,963 669,741,595 832,452,558 113,123,832 125,240,940 594,087,786 832,452,558 12,831,131 (15,655) 12,815,476 2,521,606 1,702,927 (5,337,680) 71,323,446 1,601,922 72,925,368 71,701,018 144,626,386 Empresa Electrica Panguipulli S.A. Separate 16,052,462 255,481,676 271,534,138 59,681,465 131,671,924 80,180,749 271,534,138 45,097,744 (5,320,421) 39,777,324 32,476,777 18,680,884 (1,954,238) 16,726,646 (2,647,884) 14,078,762 (3,643,974) 10,434,788 Geotermica del Norte S.A. Separate 21,765,295 347,871,452 369,636,747 20,910,840 293,675 348,432,232 369,636,747 17,023,794 (2,109,769) 14,914,025 13,168,978 2,001,882 (3,676,151) (1,674,269) 454,355 (1,219,914) 45,243,420 44,023,506 Parque Eolico Talinay Oriente S.A. Separate 63,831,605 87,493,829 151,325,434 6,173,259 18,876,242 126,275,934 151,325,435 10,058,036 (2,434,415) 7,623,621 5,310,400 1,014,857 1,312,902 2,327,759 (613,097) 1,714,661 16,552,523 18,267,184 Enel Green Power del Sur Separate 129,849,852 655,431,547 785,281,399 44,078,091 467,399,245 273,804,063 785,281,399 94,473,391 (21,024,045) 73,449,347 60,053,812 37,537,228 (24,991,814) 12,545,413 (3,455,173) 9,090,240 34,497,623 43,587,863 Grupo Enel Green Power Consolidated 344,469,181 1,628,444,820 1,972,914,001 334,639,971 768,719,376 869,554,654 1,972,914,001 183,008,879 (22,330,367) 160,678,512 131,378,740 69,236,957 (38,674,306) 30,471,438 (8,837,176) 21,634,262 173,923,954 195,558,216 Grupo Enel Generación Chile Consolidated 672,467,353 2,996,760,726 3,669,228,079 593,881,208 1,077,855,824 1,997,491,047 3,669,228,079 1,529,364,081 (818,284,050) 711,080,031 582,249,559 464,383,396 (47,947,351) 423,152,001 (104,946,765) 318,205,236 (106,994,091) 211,211,145 Grupo GasAtacama Chile S.A. Consolidated 154,726,337 601,914,918 756,641,255 61,155,091 94,466,222 601,019,942 756,641,255 271,433,789 (94,746,408) 176,687,381 146,123,452 109,465,013 1,808,644 115,039,230 (27,946,019) (5,273,886) 81,819,325

Subsequent events

Subsequent events	12 Months Ended
	Dec. 31, 2020
SUBSEQUENT EVENTS
Subsequent Events	41. SUBSEQUENT EVENTS i. On January 2021, the Company’s subsidiaries Enel Generación Chile and Enel Green Power Chile, signed a document referred to as a Joinder, by virtue of which they became party to the instrument governed by foreign law known as Commitment and Engagement Letter, dated December 31, 2020, jointly with Goldman Sachs & Co. LLC and Goldman Sachs Lending Partners LLC, among other parties, which also entered into this agreement. Subsequently, on January 29, 2021, Enel Generación Chile and Enel Green Power Chile signed an instrument with the Inter-American Investment Corporation referred to as Commitment Agreement, which is subject to foreign law. Both instruments are intended to regulate terms and conditions for the sale and transfer performed by Enel Generación Chile and Enel Green Power Chile of balances generated in their favor (the “Balances”) from the application of the temporary electric power pricing stabilization mechanism for customers subject to price regulation, as established by Law No. 21,185 (see Note 9). The transfer of Balances may be performed by Enel Generación Chile and Enel Green Power Chile, from time to time, and under different conditions, to a non-related entity referred to as Chile Electricity PEC SpA, which was incorporated specifically for this purpose, in accordance with the terms and conditions that would be established in the instrument subject to foreign legislation titled Sale and Purchase Agreement to be entered into by Enel Generación Chile, Enel Green Power Chile and Chile Electricity PEC SpA. The total nominal value of the Balances of both agreements is expected to be approximately US$268 million for Enel Generación Chile and US$ 21 million for Enel Green Power Chile. Additionally, on January 29, 2021, Enel Generación Chile and Enel Green Power Chile entered into an agreement with Chile Electricity PEC SpA subject to foreign legislation, referred to as Sale and Purchase Agreement (the “Sale Agreement”) for the sale and transfer of Balances. By virtue of this Sale Agreement, Enel Generación Chile and Enel Green Power Chile agreed to sell and transfer to Chile Electricity PEC two sets of Balances, for a nominal value of US$167.1 million and US$12.7 million, for Enel Generación Chile and Enel Green Power Chile, respectively. The sale and transfer of these sets of Balances are defined by terms and conditions established in the Commitment and Engagement Letter and in the Commitment Agreement, both described above. The sales and transfers of these sets of Balances was concluded on February 8, 2021 for the first set and March 31, 2021 for the second set. As a result of these transactions, during 2021, Enel Generación Chile and Enel Green Power Chile have recognized a financial loss of US$38.7 million and US$3.1 million, respectively. As indicated before, Enel Generación Chile and Enel Green Power Chile may continue to make new sales of Balances from time to time. The completion of additional sales of Balances will depend on Management’s analysis and evaluation of cash needs and market conditions existing at the time. ii. On April 1, 2021, Enel Chile S.A. entered into a Sustainable Development Goals (SDGs)-linked US$-denominated revolving facility agreement with Enel Finance International N.V. (EFI) for US$290 million at a variable rate of LIBOR plus 1.00%, to the date, this credit line was undrawn. Also, On April 1, 2021, the Company signed a SDGs-linked US$-denominated loan facility agreement with EFI for US$300 million at a fixed annual interest rate of 2.5%. As of April 1, 2021, the outstanding balance of the loan was US$300 million. These loans are rated SDG-linked financing that aims to support economic activity linked to the environment and socially sustainable activities, promoting the debtor to contribute to certain UN Sustainable Development Goals. iii. In April 2021, the Company announced a Voluntary Retirement Program, open to men of at least 60 and women of at least 55 years old, with an incentive for qualifying employees who voluntarily anticipate their retirement. The program is one of the initiatives that the Group is promoting in the context of its digitization strategy in 2021-2024, enabling the adoption of new work and operation models, and demands new skills and knowledge to make processes more efficient and effective at a time when the transformation of the Company’s platforms and business processes is becoming increasingly relevant to the Company’s clients and stakeholders. As a consequence of this restructuring plan, the Company will account for an expense of approximately ThCh$17,500,000 in 2021. iv. At the OSM held on April 28, 2021, our new Board of Directors was elected for a term of three years starting from the date of the meeting. At the Board of Directors meeting held on April 28, 2021, the directors agreed to appoint Fernán Gazmuri Plaza, Pablo Cabrera Gaete and Luis Gonzalo Palacios Vásquez as members of the Directors’ Committee. Additionally, Fernán Gazmuri Plaza was appointed as Financial Expert of the Directors’ Committee. The members of our new Board of Directors are as follows: Between January 1, 2021 and the date of issuance of these consolidated financial statements, the Company has no knowledge of any financial or other events which significantly affect its financial position and results presented.

Appendix 1 Details of Assets an

Appendix 1 Details of Assets and Liabilities in Foreign Currency	12 Months Ended
	Dec. 31, 2020
APPENDIX 1 DETAILS OF ASSETS AND LIABILITIES IN FOREIGN CURRENCY
Appendix 1 Details of Assets and Liabilities in Foreign Currency	APPENDIX 1 DETAIL OF ASSETS AND LIABILITIES IN FOREIGN CURRENCY This appendix forms an integral part of the consolidated financial statements of Enel Chile. The detail of assets and liabilities denominated in foreign currency is as follows: 12-31-2020 ASSETS U.F. Chilean Peso U.S. dollar Euro Colombian Peso Angentine Peso Brazilian Real Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT ASSETS Cash and cash equivalents - 300,357,149 27,617,370 83,819 - 3,977,675 - 332,036,013 Other current financial assets 707,749 2,614,678 29,977 - - - - 3,352,404 Other current non-financial assets 1,117,707 15,358,682 2,189,622 293,128 - 842,434 - 19,801,573 Trade and other current receivables 1,663,044 544,736,403 7,713,459 773,733 - - - 554,886,639 Current accounts receivable from related parties - 3,106,532 29,404,983 25,464,610 - - - 57,976,125 Inventories 48,280 17,978,682 4,042,276 1,234,785 - 6,006 - 23,310,029 Current tax assets - 35,025,069 - - - 13,344 - 35,038,413 TOTAL CURRENT ASSETS 3,536,780 919,177,195 70,997,687 27,850,075 - 4,839,459 - 1,026,401,196 NON-CURRENT ASSETS Other non-current financial assets - 18,745,200 1,373,356 541,894 - - - 20,660,450 Other non-current non-financial assets 58,216 65,728,999 - - - - - 65,787,215 Trade and other non-current receivables 8,745,386 77,106,644 359,154,278 - - 10,258 - 445,016,566 Non-current accounts receivable from related parties - - 48,358,915 - - - 48,358,915 Investments accounted for using the equity method - 7,451,193 5,171,047 - - 370,563 - 12,992,803 Intangible assets other than goodwill - 115,140,459 49,736,710 - - 237,352 - 165,114,521 Goodwill - 887,257,655 28,447,714 - - - - 915,705,369 Property, plant and equipment 1,045,376,735 3,102,444,105 871,743,874 - - 13,931,758 - 5,033,496,472 Investment property - 7,421,940 - - - - - 7,421,940 Right-of-use asset 19,262,028 27,760,561 1,634,255 6,845,348 - - - 55,502,192 Deferred tax assets - 98,353,360 9,660,585 - - - - 108,013,945 TOTAL NON CURRENT ASSETS 1,073,442,365 4,407,410,116 1,375,280,734 7,387,242 - 14,549,931 - 6,878,070,388 TOTAL ASSETS 1,076,979,145 5,326,587,311 1,446,278,421 35,237,317 - 19,389,390 - 7,904,471,584 12-31-2019 ASSETS UF Chilean Peso U.S. dollar Euro Colombian Peso Angentine Peso Brazilian Real Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT ASSETS Cash and cash equivalents - 209,818,277 18,115,385 654,319 - 7,096,519 - 235,684,500 Other current financial assets 707,749 280,529 322,317 - - - - 1,310,595 Other current non-financial assets - 34,098,847 535,716 - - - - 34,634,563 Trade and other current receivables - 500,407,168 10,964,072 84,090 - - - 511,455,330 Current accounts receivable from related parties - 3,419,722 40,603,423 22,859,682 833,336 - 465,970 68,182,133 Inventories 53,034 34,959,079 4,212,534 447,603 - - - 39,672,250 Current tax assets - 117,532,553 9,740,736 - - - - 127,273,289 TOTAL CURRENT ASSETS 760,783 900,516,175 84,494,183 24,045,694 833,336 7,096,519 465,970 1,018,212,660 NON-CURRENT ASSETS Other non-current financial assets - 7,220,618 2 - - - - 7,220,620 Other non-current non-financial assets 56,950 37,993,234 - - - - - 38,050,184 Trade and other non-current receivables - 146,276,706 167,297,679 - - - - 313,574,385 Non-current accounts receivable from related parties - - 34,407,142 - - - - 34,407,142 Investments accounted for using the equity method - 7,928,588 - - - - - 7,928,588 Intangible assets other than goodwill - 86,594,286 45,684,307 - - - - 132,278,593 Goodwill - 909,078,058 8,274,916 - - - - 917,352,974 Property, plant and equipment 35,346,435 3,623,068,833 1,638,296,993 7,763,853 - - - 5,304,476,114 Investment property - 6,795,155 - - - - - 6,795,155 Right-of-use asset 27,741,230 19,795,447 - 8,306,833 - - - 55,843,510 Deferred tax assets - 6,530,201 15,318,038 - - - - 21,848,239 TOTAL NON CURRENT ASSETS 63,144,615 4,851,281,126 1,909,279,077 16,070,686 - - - 6,839,775,504 TOTAL ASSETS 63,905,398 5,751,797,301 1,993,773,260 40,116,380 833,336 7,096,519 465,970 7,857,988,164 12-31-2020 LIABILITIES Unidad Chilean Peso U.S. dollar Euro Colombian Peso Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 33,601,292 4 123,897,845 - - - 157,499,141 Current lease liability 3,129,937 65,504 2,841,336 970,934 - - 7,007,711 Trade and other current payables 16,207,046 363,193,954 242,153,349 6,133,452 270,221 627,958,022 Current accounts payable to related parties - 3,105,229 21,185,153 105,759,004 4,576 - 130,053,962 Other current provisions - 3,194,786 - - - 240,018 3,434,804 Current tax liabilities - 69,682,409 2,677,535 - - - 72,359,944 Other current non-financial liabilities - 43,065,405 542,959 3,532,025 - 26,192 47,166,581 TOTAL CURRENT LIABILITIES 52,938,275 482,307,291 393,298,177 116,395,415 4,576 536,431 1,045,480,165 NON-CURRENT LIABILITIES Other non-current financial liabilities 249,693,690 - 1,233,895,436 - - - 1,483,589,126 Non-current lease liability 28,337,700 56,084 9,461,026 7,002,997 - 44,857,807 Trade and other non-current payables - 27,661 117,182,398 - - - 117,210,059 Non-current accounts receivable to related parties - - 1,164,044,462 - - - 1,164,044,462 Other long-term provisions - 192,728,322 17,513,349 - - - 210,241,671 Deferred tax liabilities - 69,239,139 98,818,423 - - - 168,057,562 Non-current provisions for employee benefits - 74,814,799 723,466 - - - 75,538,265 Other non-current non-financial liabilities - 1,177,968 - - - - 1,177,968 TOTAL NON-CURRENT LIABILITIES 278,031,390 338,043,973 2,641,638,560 7,002,997 - - 3,264,716,920 TOTAL LIABILITIES 330,969,665 820,351,264 3,034,936,737 123,398,412 4,576 536,431 4,310,197,085 12-31-2019 LIABILITIES Unidad de Fomento Chilean Peso U.S. dollar Euro Colombian Peso Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 32,860,004 5 175,954,552 - - - 208,814,561 Current lease liability 2,357,438 20,000 2,836,524 628,053 - - 5,842,015 Trade and other current payables 5,215,585 523,504,426 66,209,531 4,333,666 - - 599,263,208 Current accounts payable to related parties - 38,133,907 11,910,024 109,765,956 - - 159,809,887 Other current provisions - 4,065,965 - - - - 4,065,965 Current tax liabilities - 17,940,784 55,049 - - - 17,995,833 Other current non-financial liabilities 254,084 38,929,298 2,933,274 3,391,727 - - 45,508,383 TOTAL CURRENT LIABILITIES 40,687,111 622,594,385 259,898,954 118,119,402 - - 1,041,299,852 NON-CURRENT LIABILITIES Other non-current financial liabilities 274,035,059 - 1,418,569,186 - - - 1,692,604,245 Non-current lease liability 27,672,124 68,922 12,754,827 7,069,801 - - 47,565,674 Trade and other non-current payables - 27,661 56,222,424 - - - 56,250,085 Non-current accounts receivable to related parties - - 486,839,483 297,534,001 - - 784,373,484 Other long-term provisions - 155,315,044 16,545,238 - - - 171,860,282 Deferred tax liabilities - 161,017,178 88,267,463 - - - 249,284,641 Non-current provisions for employee benefits - 65,531,375 632,115 - - - 66,163,490 Other non-current non-financial liabilities - 1,302,759 - - - - 1,302,759 TOTAL NON-CURRENT LIABILITIES 301,707,183 383,262,939 2,079,830,736 304,603,802 - - 3,069,404,660 TOTAL LIABILITIES 342,394,294 1,005,857,324 2,339,729,690 422,723,204 - - 4,110,704,512

Appendix 2 Additional Informati

Appendix 2 Additional Information Circular No. 715 OF February 3, 2012	12 Months Ended
	Dec. 31, 2020
TRADE AND OTHER RECEIVABLES.
Appendix 2 Additional Information No. 715 of February 3, 2012	APPENDIX 2 ADDITIONAL INFORMATION CIRCULAR No. 715 OF FEBRUARY 3, 2012 This appendix is part of Note 9, “Trade and Other Receivables,” and forms an integral part of the consolidated financial statements of Enel Chile. a) Portfolio stratification - As of December 31, 2020 Current 1 - 30 days 31 - 60 days 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than Total Total Non- Trade and Other Receivables ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, gross 377,746,656 36,385,017 12,407,192 6,537,514 6,900,741 7,546,970 7,056,042 3,869,232 3,539,702 69,190,250 531,179,316 377,160,616 Impairment provision (5,564,122) (291,820) (999,683) (1,089,744) (2,061,977) (2,685,492) (3,242,896) (2,392,141) (2,225,233) (29,184,188) (49,737,296) (113,332) Accounts receivable for leasing, gross 8,556,146 — — — — — — — — — 8,556,146 62,602,528 Impairment provision (4,483,408) — — — — — — — — — (4,483,408) — Other receivables, gross 69,371,881 — — — — — — — — 10,518,967 79,890,848 5,366,754 Impairment provision — — — — — — — — — (10,518,967) (10,518,967) — Total 445,627,153 36,093,197 11,407,509 5,447,770 4,838,764 4,861,478 3,813,146 1,477,091 1,314,469 40,006,062 554,886,639 445,016,566 As of December 31, 2019 Current 1-30 days 31-60 days 61-90 days 91-120 days 121-150 151-180 181-210 211-250 More than Total Total Non- Trade and Other Receivables ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, gross 393,746,637 32,460,011 7,929,315 4,700,283 2,997,797 2,754,366 3,037,705 2,667,099 2,510,683 47,236,887 500,040,783 191,966,929 Impairment provision (3,148,393) (357,214) (484,022) (587,103) (677,088) (845,948) (804,567) (1,413,915) (1,114,081) (34,055,771) (43,488,101) — Accounts receivable for leasing, gross 13,158,795 — — — — — — — — — 13,158,795 117,873,340 Impairment provision (2,036,917) — — — — — — — — — (2,036,917) — Other receivables, gross 43,836,461 — — — — — — — — 9,883,938 53,720,399 3,734,116 Impairment provision (55,690) — — — — — — — — (9,883,938) (9,939,628) — Total 445,500,893 32,102,797 7,445,293 4,113,180 2,320,709 1,908,418 2,233,138 1,253,184 1,396,602 13,181,116 511,455,331 313,574,385 - By type of portfolio: December 31, 2020 December 31, 2019 Non-renegotiated Portfolio Renegotiated Portfolio Total Gross Portfolio Non-renegotiated Portfolio Renegotiated Portfolio Total Gross Portfolio Number of Gross Number of Gross Number of Gross Number of Gross Number of Gross Number of Gross Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Up-to-date 1,466,900 523,805,724 52,534 231,101,548 1,519,434 754,907,272 1,340,828 469,633,677 36,952 116,079,889 1,377,780 585,713,566 1 to 30 days 395,186 34,812,023 20,715 1,572,994 415,901 36,385,017 433,225 30,871,310 21,280 1,588,701 454,505 32,460,011 31 to 60 days 80,032 9,839,311 6,815 2,567,881 86,847 12,407,192 106,521 7,630,607 8,018 298,708 114,539 7,929,315 61 to 90 days 33,889 6,030,130 3,116 507,384 37,005 6,537,514 17,349 4,363,345 2,080 336,938 19,429 4,700,283 91 to 120 days 20,530 6,763,017 2,021 137,724 22,551 6,900,741 11,084 2,852,961 1,661 144,836 12,745 2,997,797 121 to 150 days 14,558 6,398,089 1,478 1,148,881 16,036 7,546,970 5,819 2,510,766 1,256 243,600 7,075 2,754,366 151 to 180 days 14,025 5,653,084 1,393 1,402,958 15,418 7,056,042 3,962 2,863,659 544 174,046 4,506 3,037,705 181 to 210 days 9,955 3,625,873 1,311 243,359 11,266 3,869,232 3,647 2,571,731 377 95,368 4,024 2,667,099 211 to 250 days 8,864 3,314,300 1,526 225,402 10,390 3,539,702 2,677 2,421,028 342 89,655 3,019 2,510,683 More than 251 days 52,024 68,459,538 15,224 730,712 67,248 69,190,250 114,518 46,531,813 6,517 705,074 121,035 47,236,887 Total 2,095,963 668,701,089 106,133 239,638,843 2,202,096 908,339,932 2,039,630 572,250,897 79,027 119,756,815 2,118,657 692,007,712 b) Portfolio in default and in legal collection process As of December 31, 2020 2019 Number of Amount Number of Amount Portfolio in Default and in Legal Collection Process Customers ThCh$ Customers ThCh$ Notes receivable in default 1,878 256,927 1,888 258,073 Notes receivable in legal collection process (*) 1,140 5,600,040 1,287 6,313,513 Total 3,018 5,856,967 3,175 6,571,586 (*) c) Provisions and write-offs As of December 31, 12-31-2020 12-31-2019 Provisions and Write-offs ThCh$ ThCh$ Provision for non-renegotiated portfolio 12,467,992 4,403,135 Provision for renegotiated portfolio 2,699,715 5,643,865 Total 15,167,707 10,047,000 d) Number and value of transactions 12-31-2020 12-31-2019 Total detail by type of transaction Total detail by Total detail by type of transaction Total detail by Number and Amount of Transactions Last Quarter Year-to-date Last Quarter Year-to-date Allowance for impairment and recoveries: Number of Transactions 10,390 72,590 52,870 88,750 Amount of the transactions 7,768,107 15,167,707 2,451,690 10,047,000 APPENDIX 2.1 SUPPLEMENTARY INFORMATION ON TRADE RECEIVABLES: This appendix is part of Note 9, “Trade and Other Receivables,” and forms an integral part of these consolidated financial statements of Enel Chile. a) Portfolio stratification - By aging of trade receivables 12-31-2020 Trade receivables Up-to-date 1-30 days in arrears 31-60 days in arrears 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than 251 More than 365 Total Current Total Non- ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, Generation and Transmission 207,362,673 17,592,321 1,880,972 373,611 457,537 494,444 356,603 377,744 533,493 1,925,441 9,037,377 240,392,216 164,089,704 - Large customers 204,354,697 17,521,848 1,876,016 368,006 135,284 485,164 199,958 243,828 270,705 853,335 8,634,892 234,943,733 164,089,704 - Institutional Clients — — — — — — — — — — — — — - Others 3,007,976 70,473 4,956 5,605 322,253 9,280 156,645 133,916 262,788 1,072,106 402,485 5,448,483 — Allowance for impairment (123,260) (989) (1,163) (1,002) (56,036) (633) (722) (4,160) (3,946) (406,781) (3,192,642) (3,791,334) (113,332) Unbilled services 174,934,439 — — — 55,670 — — — — — — 174,990,109 164,089,704 Billed services 32,428,234 17,592,321 1,880,972 373,611 401,867 494,444 356,603 377,744 533,493 1,925,441 9,037,377 65,402,107 — Trade receivables, Distribution 170,383,983 18,792,696 10,526,220 6,163,903 6,443,204 7,052,526 6,699,439 3,491,488 3,006,209 12,804,907 45,422,525 290,787,100 213,070,912 - Mass-market customers 102,010,816 10,395,375 5,325,182 4,551,187 3,889,157 4,248,311 4,049,459 2,189,259 2,730,394 8,211,749 31,036,019 178,636,908 209,112,768 - Large Clients 63,058,780 6,720,252 1,907,638 817,788 1,875,941 1,031,268 358,060 (17,541) (16,790) 469,117 6,492,927 82,697,440 807,561 - Institutional customers 5,314,387 1,677,069 3,293,400 794,928 678,106 1,772,947 2,291,920 1,319,770 292,605 4,124,041 7,893,579 29,452,752 3,150,583 Allowance for impairment (5,440,862) (290,831) (998,520) (1,088,742) (2,005,941) (2,684,859) (3,242,174) (2,387,981) (2,221,287) (8,803,398) (16,781,367) (45,945,962) — Unbilled services 126,861,713 — — — — — — — — — — 126,861,713 206,186,925 Billed services 43,522,270 18,792,696 10,526,220 6,163,903 6,443,204 7,052,526 6,699,439 3,491,488 3,006,209 12,804,907 45,422,525 163,925,387 6,883,986 Total trade receivables, gross 377,746,656 36,385,017 12,407,192 6,537,514 6,900,741 7,546,970 7,056,042 3,869,232 3,539,702 14,730,348 54,459,902 531,179,316 377,160,616 Total Allowance for impairment (5,564,122) (291,820) (999,683) (1,089,744) (2,061,977) (2,685,492) (3,242,896) (2,392,141) (2,225,233) (9,210,179) (19,974,009) (49,737,296) (113,332) Total trade receivables, net 372,182,534 36,093,197 11,407,509 5,447,770 4,838,764 4,861,478 3,813,146 1,477,091 1,314,469 5,520,169 34,485,893 481,442,020 377,047,284 12-31-2019 Trade receivables Up-to-date 1 - 30 days 31 - 60 days 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than 251 More than 365 Total Current Total Non- ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, Generation and Transmission 199,019,252 2,888,824 224,770 705,885 404,757 116,371 787,421 187,920 592,987 1,354,217 6,240,193 212,522,597 86,403,772 - Large Clients 193,125,348 2,763,610 43,392 551,201 290,439 13,672 574,794 78,802 487,520 846,079 4,944,351 203,719,208 86,403,772 - Institutional customers — — — — — — — — — — — — — - Others 5,893,904 125,214 181,378 154,684 114,318 102,699 212,627 109,118 105,467 508,138 1,295,842 8,803,389 — Allowance for impairment (10,907) (260) (200) (142) (103) (93) (258) (154) (98) (577) (2,901,975) (2,914,767) — Unbilled services 142,968,302 — — — — — — — — — — 142,968,302 86,403,772 Billed services 56,050,950 2,888,824 224,770 705,885 404,757 116,371 787,421 187,920 592,987 1,354,217 6,240,193 69,554,295 — Trade receivables, Distribution 194,727,385 29,571,187 7,704,545 3,994,398 2,593,040 2,637,995 2,250,284 2,479,179 1,917,696 3,635,526 36,006,951 287,518,186 105,563,157 - Massive Clients 144,845,823 21,084,861 5,054,606 1,889,878 1,672,041 1,384,133 1,257,238 922,539 789,642 2,097,222 24,433,032 205,431,015 103,267,572 - Large Clients 44,406,790 6,202,698 1,154,539 421,771 95,168 271,785 448,510 209,272 206,091 775,558 5,784,217 59,976,399 7,086 - Institutional Clients 5,474,772 2,283,628 1,495,400 1,682,749 825,831 982,077 544,536 1,347,368 921,963 762,746 5,789,702 22,110,772 2,288,499 Allowance for impairment (3,137,486) (356,954) (483,822) (586,961) (676,985) (845,855) (804,309) (1,413,761) (1,113,983) (2,476,763) (28,676,455) (40,573,334) — Unbilled services 141,740,569 — — — — — — — — — — 141,740,569 100,458,746 Billed services 52,986,816 29,571,187 7,704,545 3,994,398 2,593,040 2,637,995 2,250,284 2,479,179 1,917,696 3,635,526 36,006,951 145,777,617 5,104,411 Total trade receivables, gross 393,746,637 32,460,011 7,929,315 4,700,283 2,997,797 2,754,366 3,037,705 2,667,099 2,510,683 4,989,743 42,247,144 500,040,783 191,966,929 Total Allowance for impairment (3,148,393) (357,214) (484,022) (587,103) (677,088) (845,948) (804,567) (1,413,915) (1,114,081) (2,477,340) (31,578,430) (43,488,101) — Total trade receivables, net 390,598,244 32,102,797 7,445,293 4,113,180 2,320,709 1,908,418 2,233,138 1,253,184 1,396,602 2,512,403 10,668,714 456,552,682 191,966,929 Since not all of our commercial databases in our Group’s different consolidated entities distinguish whether the final electricity service consumer is an individual or legal entity, the main management segmentation used by all consolidated entities to monitor and follow up on trade receivables is the following: - Mass-market Customers - Large Customers - Institutional Customers - By type of portfolio: 12-31-2020 Type of Portfolio Up-to-date 1 - 30 days 31 - 60 days 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than 251 Total gross portfolio Total non-current gross portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION AND TRANSMISSION Non-renegotiated portfolio 207,362,673 17,592,321 1,880,972 373,611 457,537 494,444 356,603 377,744 533,493 10,596,272 240,025,670 164,089,704 - Large Clients 204,354,697 17,521,848 1,876,016 368,006 135,284 485,164 199,958 243,828 270,705 9,488,227 234,943,733 164,089,704 - Institutional Clients — — — — — — — — — — — — - Other 3,007,976 70,473 4,956 5,605 322,253 9,280 156,645 133,916 262,788 1,108,045 5,081,937 — Renegotiated portfolio — — — — — — — — — — — — - Large Clients — — — — — — — — — — — — - Institutional Clients — — — — — — — — — — — — - Other — — — — — — — — — — — — DISTRIBUTION Non-renegotiated portfolio 151,965,997 17,219,702 7,958,339 5,656,519 6,305,480 5,903,645 5,296,481 3,248,129 2,780,807 57,863,266 264,198,365 387,350 - Mass-market Clients 87,768,761 9,237,781 4,772,065 4,091,907 3,771,913 3,897,093 3,590,787 1,945,914 2,524,013 38,886,067 160,486,301 163,843 - Large Clients 61,579,935 6,530,802 1,801,692 772,761 1,855,461 1,031,268 358,060 (17,541) (35,811) 6,962,044 80,838,671 223,507 - Institutional Clients 2,617,301 1,451,119 1,384,582 791,851 678,106 975,284 1,347,634 1,319,756 292,605 12,015,155 22,873,393 — Renegotiated portfolio 18,417,986 1,572,994 2,567,881 507,384 137,724 1,148,881 1,402,958 243,359 225,402 730,712 26,955,281 212,683,562 - Mass-market Clients 14,242,055 1,157,595 553,116 459,280 117,244 351,218 458,673 243,345 206,381 728,248 18,517,155 208,948,925 - Large Clients 1,478,845 189,449 105,946 45,027 20,480 — — — 19,021 — 1,858,768 584,054 - Institutional Clients 2,697,086 225,950 1,908,819 3,077 — 797,663 944,285 14 — 2,464 6,579,358 3,150,583 Total gross portfolio 377,746,656 36,385,017 12,407,192 6,537,514 6,900,741 7,546,970 7,056,042 3,869,232 3,539,702 69,190,250 531,179,316 377,160,616 12-31-2019 Type of Portfolio Current 1-30 days 31-60 days 61-90 days 91-120 days 121-150 days 151-180 days 181-210 days 211-250 days More than Total Total Non- ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION AND TRANSMISSION Non-renegotiated portfolio 199,019,252 2,888,824 224,770 705,885 404,757 116,371 787,421 187,920 592,987 7,594,410 212,522,597 86,403,772 - Large customers 193,125,348 2,763,610 43,392 551,201 290,439 13,672 574,794 78,802 487,520 5,790,430 203,719,208 86,403,772 - Institutional customers — — — — — — — — — — — — - Others 5,893,904 125,214 181,378 154,684 114,318 102,699 212,627 109,118 105,467 1,803,980 8,803,389 — Renegotiated portfolio — — — — — — — — — — — — - Large customers — — — — — — — — — — — — - Institutional customers — — — — — — — — — — — — - Others — — — — — — — — — — — DISTRIBUTION Non-renegotiated portfolio 184,125,135 27,982,486 7,405,837 3,657,460 2,448,204 2,394,395 2,076,238 2,383,811 1,828,041 38,937,403 273,239,010 85,518 - Mass-market customers 136,847,474 20,324,155 4,780,197 1,556,017 1,527,205 1,162,547 1,083,203 827,171 699,987 26,043,745 194,851,701 85,518 - Large customers 44,252,680 6,148,385 1,130,250 421,771 95,168 271,785 448,510 209,272 206,091 4,961,884 58,145,796 — - Institutional customers 3,024,981 1,509,946 1,495,390 1,679,672 825,831 960,063 544,525 1,347,368 921,963 7,931,774 20,241,513 — Renegotiated portfolio 10,602,250 1,588,701 298,708 336,938 144,836 243,600 174,046 95,368 89,655 705,074 14,279,176 105,477,639 - Mass-market customers 7,998,348 760,707 274,411 333,861 144,836 221,586 174,035 95,368 89,655 486,509 10,579,316 103,182,054 - Large Customers 154,110 54,312 24,288 — — — — — — 46,775 279,485 7,086 - Institutional Customers 2,449,792 773,682 9 3,077 — 22,014 11 — — 171,790 3,420,375 2,288,499 Total Gross Portfolio 393,746,637 32,460,011 7,929,315 4,700,283 2,997,797 2,754,366 3,037,705 2,667,099 2,510,683 47,236,887 500,040,783 191,966,929 APPENDIX 2.2 ESTIMATES OF SALES AND PURCHASES OF ENERGY, POWER AND TOLL This appendix forms an integral part of the consolidated financial statements of Enel Chile. 12-31-2020 12-31-2019 Energy and Capacity Tolls Energy and Capacity Tolls STATEMENT OF FINANCIAL POSITION ThCh$ ThCh$ ThCh$ ThCh$ Current accounts receivable from related parties — — — — Trade and other receivables, current 229,499,918 33,270,963 209,842,624 13,929,209 Trade and other receivables, non-current 396,509,053 — 192,961,043 — Total Estimated Assets 626,008,971 33,270,963 402,803,667 13,929,209 Current accounts payable to related parties — — — — Trade and other payables, current 68,569,674 13,216,339 71,189,226 20,059,576 Trade and other payables, non-current 121,315,888 — 53,941,373 — Total Estimated Liabilities 189,885,562 13,216,339 125,130,599 20,059,576 12-31-2020 12-31-2019 Energy and power Tolls Energy and power Tolls INCOME STATEMENT ThCh$ ThCh$ ThCh$ ThCh$ Energy Sales 422,457,671 33,270,962 310,301,370 13,929,209 Energy Purchases 147,662,168 11,928,862 125,130,599 20,059,576

Appendix 3 Details of Due Dates

Appendix 3 Details of Due Dates of Payments to Suppliers	12 Months Ended
	Dec. 31, 2020
APPENDIX 3 DETAILS OF DUE DATES OF PAYMENTS TO SUPPLIERS
Appendix 3 Details of Due Dates of Payments to Suppliers	APPENDIX 3 DETAIL OF DUE DATES OF PAYMENTS TO SUPPLIERS This appendix is part of Note 24, “Current and Non-Current Payables,” and forms an integral part of the consolidated financial statements of Enel Chile. 12-31-2020 12-31-2019 Goods Services Other Total Goods Services Other Total Suppliers with Current Payments ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Up to 30 days 133,063,016 89,574,397 166,733,893 389,371,306 101,666,302 148,397,518 121,111,092 371,174,912 Between 31 and 60 days 49,211,386 60,808,696 79,770 110,099,852 5,579,618 71,069,622 219,965 76,869,205 Between 61 and 90 days 78,114,700 343,314 187,027 78,645,041 9,045,950 1,118,102 11,177,955 21,342,007 Between 91 and 120 days — — — — — — — — Between 121 and 365 days — — — — 48,102,870 — — 48,102,870 More than 365 days — 487 117,129,284 117,129,771 — 487 56,222,424 56,222,911 Total 260,389,102 150,726,894 284,129,974 695,245,970 164,394,740 220,585,729 188,731,436 573,711,905 12-31-2020 12-31-2019 Goods Services Other Total Goods Services Other Total Suppliers details ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Suppliers for energy purchase - 22,475,111 226,238,177 248,713,288 - 63,364,701 168,730,485 232,095,186 Suppliers for the purchase of fuels and gas - 36,735,748 - 36,735,748 - 55,179,023 - 55,179,023 Accounts payable for goods and services 202,897,547 91,516,035 - 294,413,582 81,807,039 102,042,005 - 183,849,044 Accounts payable for the purchase of assets 57,491,555 - 57,891,797 115,383,352 82,587,701 - 20,000,951 102,588,652 Total 260,389,102 150,726,894 284,129,974 695,245,970 164,394,740 220,585,729 188,731,436 573,711,905

Accounting Policies (Policies)

Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
ACCOUNTING POLICIES
Property, plant and equipment	a) Property, plant and equipment Property, plant and equipment are generally measured with at acquisition cost, net of accumulated depreciation and any impairment losses experienced. In addition to the price paid to acquire each item, the cost also includes, the following concepts, where applicable: - Finance costs accrued during the construction period that are directly attributable to the acquisition, construction, or production of qualifying assets, which require a substantial period of time before being ready for use such as; for example., electricity generation or distribution facilities. The Group defines “substantial period” as a period exceeding twelve months. On the other hand, the capitalization of interest is suspended for periods in which the development of activities for a qualifying asset has been interrupted, if these periods are extended over time. The interest rate used is that corresponding to the specific financing or, if it does not exist, the average financing rate of the company making the investment (See Note 16 b.1). - Employee expenses directly related to construction in progress (see Note 16.b.2). - Future disbursements that the Group will have to make to close its facilities are added to the value of the asset at fair value, recognizing the related provision for dismantling or restoration. Changes in the measurement of the provision resulting from changes in the estimated amount or timing of future expenditures required to settle the obligation, or changes in the discount rate, are added to or deducted from the cost of the asset, as appropriate ( See Note 25). Assets under for construction are transferred to operating assets once the testing period has been completed and they are available for use, at which time depreciation begins. Expansion, modernization or improvement costs that represent an increase in productivity, capacity or efficiency or a lengthening of the useful lives of the assets are capitalized as an increase in the value of the related assets. The replacement or overhaul of entire components that increase the asset’s useful life or economic capacity are recorded as an increase in cost of the related assets, derecognizing the replaced or overhauled components. Expenditures for periodic maintenance and repair are recognized directly as an expense for the year in which they are incurred. Property, plant and equipment, net of its residual value, is depreciated by distributing the cost of the different items that comprise it on a straight-line basis over its estimated useful life, which is the period during which the Group expects to use the assets. Useful life estimates and residual values are reviewed on an annual basis and if appropriate adjusted prospectively. In addition, the Group recognizes right-of-use assets for leases relating to property, plant and equipment in accordance with the criteria established in Note 3.f. The following are the main categories of property, plant and equipment with their related estimated useful lives: Classes of property, plant and equipment Years of estimated useful life Buildings 10 – 60 Plant and equipment 6 – 65 IT equipment 3 – 15 Fixtures and fittings 2 – 35 Motor vehicles 5 – 10 In addition, for further information, the following is a more detailed breakdown of the class of plant and equipment: Class of plant and equipment Years of estimated Generating plant and equipment Hydroelectric plants Civil engineering works 10 – 65 Electromechanical equipment 10 – 45 Combined cycle power plants 10 – 25 Renewable 20 Distribution plant and equipment:: High-voltage network 10 – 60 Low- and medium-voltage network 10 – 50 Measuring and remote control equipment 10 – 50 Primary substations 6 – 25 Natural gas transportation Gas pipelines 20 Land is not depreciated since it has an indefinite useful life, unless it relates to a right-of- use asset in which case it is depreciated over the term of the lease. An item of property, plant and equipment is written off when sold or otherwise disposed of, or when no future economic benefits are expected to be obtained from its use, sale or other disposal. Gains or losses arising from sales of property, plant and equipment or PP&E items retired, are recognized as “Other gains (losses)” in the statement of comprehensive income and are determined as the difference between the sale value and net carrying amount of the asset.
Investment property	b) Investment property “Investment property” basically includes land and buildings that are kept for the purpose of obtaining gains from future sales or lease arrangements. Investment property is measured at acquisition cost, net of accumulated depreciation and any impairment losses experienced. Investment property, excluding land, is depreciated by distributing the cost of the several elements that comprise it on a straight-line basis over the years of useful life. An investment property is derecognized on disposal, or when no future economic benefits are expected from use or disposal. Gains or losses arising from the sale or disposal of items of investment property are recognized as “Other gains (losses)” in the statement of comprehensive income and determined as the difference between the sales amount and the net carrying amount of the asset. The fair value of investment property is disclosed in Note 17.
Goodwill	c) Goodwill Goodwill arising from business combinations and reflected in consolidation, represents the excess of the value of the consideration transferred plus the amount of any non-controlling interest over the net identifiable assets acquired and liabilities assumed, measured at fair value at the date of acquisition of the subsidiary. During the measurement period of the business combination, goodwill may be adjusted as a result of changes in the provisional amounts recognized for the assets acquired and liabilities assumed (see Note 2.7.1). Goodwill arising from acquisition of companies with functional currencies other than the functional currency of the Parent is measured in the functional currency of the acquiree and translated to Chilean peso using the exchange rate effective as of the date of the statement of financial position. After initial recognition, goodwill is not amortized, but rather, at the end of each accounting period, or when there are indications thereof, an impairment test is performed to determine whether any impairment has occurred that reduces its recoverable value to an amount lower than the recorded net cost, and if this is the case, the impairment is recorded in the statement of income for the period (see Note 3.e).
Intangible assets other than goodwill	d) Intangible assets other than goodwill Intangible assets are initially recognized at their acquisition cost or production cost, and are subsequently measured at their cost, net of their accumulated amortization and impairment losses experienced. Intangible assets are amortized on a straight-line basis over their useful lives starting from the time they are in use, except for those assets with indefinite useful lives, for which amortization is not applicable. As of December 31, 2020 and 2019, intangible assets with indefinite useful lives amounted to ThCh$14,605,574 and ThCh$16,455,724, respectively, mainly related to easements and water rights. An intangible asset is derecognized when it is sold or otherwise disposed of, or when no future economic benefits are expected from its use, sale or other disposal. Gains or losses arising from sales of intangible assets are recognized in profit or loss for the period and determined as the difference between the amount of the sale and the carrying amount of the asset. The criteria for recognizing impairment losses on these assets and, if applicable, recoveries of impairment losses recorded in prior periods are explained in letter e) of this Note below. d.1) Research and development expenses The Group recognizes the costs incurred in a project’s development phase as intangible assets in the statement of financial position as long as the project’s technical feasibility and future economic benefits have been demonstrated. Research costs are recorded as an expense in the consolidated statement of comprehensive income in the period in which they are incurred. d.2) Other intangible assets These assets correspond mainly to computer software, water rights and easements. They are initially recognized at acquisition or production cost and are subsequently valued at cost net of the related accumulated amortization and impairment losses, if any. Computer software is amortized (on average) over four years. Certain easements and water rights have indefinite useful lives and are therefore not amortized.
Impairment of non-financial assets	e) Impairment of non-financial assets During the period, and mainly at the end of each reporting period, the Group evaluates whether there is any indication that an asset has been impaired. If any such indication exists, the Group estimates the recoverable amount of that asset to determine the amount of the impairment loss. For identifiable assets that do not generate cash flows independently, the Group estimates the recoverable amount of the Cash Generating Unit (CGU) to which the asset belongs, which is understood to be the smallest identifiable group of assets that generates independent cash inflows. Notwithstanding the preceding paragraph, for CGUs to which goodwill or intangible assets with indefinite useful lives have been allocated, a recoverability analysis is performed routinely at each year-end. The criteria used to identify the CGUs are based, in line with Management’s strategic and operating vision, within the specific characteristics of the business, the operating rules and regulations of the market in which the Group operates and corporate organization. Recoverable amount is the higher of fair value less costs of disposal and value in use, which is defined as the present value of the estimated future cash flows. In order to calculate the recoverable amount of Property, plant, and equipment, as well as of goodwill and intangible assets, at the level of each CGUs the Group uses value in use criteria in practically all cases. To estimate value in use, the Group prepares future pre-tax cash flow forecasts based on the most recent budgets available. These budgets include Management’s best estimates of a CGU’s revenue and costs using sector forecasts, past experience and future expectations. In general, these projections cover the next three years, estimating cash flows for subsequent years by applying reasonable growth rates which, in no case, are increasing rates nor exceed the average long-term growth rates for the particular sector. At the end of December 2020, the rates used to extrapolate the projections were between 2.0% and 2.9%. Future cash flows are discounted to calculate their present value at a pre-tax rate that covers the cost of capital for the business activity and the geographic area in which it is being carried out. The time value of money and risk premiums generally used among analysts for the business activity and the geographic zone are taken into account to calculate the pre-tax rate. The pre-tax discount rates, expressed in nominal terms, applied at the end of December 2020 were between 6.3% and 8.2%. The Company’s approach to allocate value to each key assumption used to project cash flows, considers: - Demand evolution: the growth estimate has been calculated based on the projected increase in Gross Domestic Product (GDP), in addition to other assumptions used by the company regarding the evolution of consumption, such as the growth in the number of customers. - Energy purchase and sale prices: based on specifically developed internal projection models. The price of the planned “pool” is estimated by considering a number of determining factors, such as the different technology’ costs and productions and energy demand, among other items. - Regulatory measures: an important part of the Company’s business is regulated and subject to extensive standards, which could undergo revisions, either as a result of new laws or the amendment of existing laws, and therefore the projections include adequate application of the current standards, those that are currently being developed, and those expected to be effective during the projected period. - Installed capacity: in the estimating of the Group’s installed capacity, the existing facilities are taken into account, as well as the plans for both increasing capacity and capacity closure. The investment plan is constantly updated based on the evolution of the business, quality of service regulations determined by the regulator and changes in the business development strategy adopted by management. In the generation area, the investments necessary to maintain the installed capacity in adequate operating conditions are taken into account; in the distribution activity, investments for maintenance, improvement and strengthening of the network are considered, as well as the investments necessary to carry out the implementation of the technological improvement plan (Smart Meters). - Hydrology and NCRE: the projections are made from historical series of meteorological conditions and projecting an average year, based on these. - Fuel costs for the estimation of fuel costs take into consideration existing supply contracts and long-term projections of oil, gas or coal prices based on forward markets and available analysts' estimates. - Fixed costs: these are projected considering the foreseen level of business activities, both in terms of the evolution of the workforce (considering salary raises in line with the CPI), and in term of other operating and maintenance costs, the level of projected inflation and long-term existing maintenance or other contracts. The efficiencies that the Group is adopting over time are also considered, such as those that arise from the initiatives for the digitalization of internal processes. - External sources are always considered to verify the assumptions related to the macroeconomic environment such as price evolution, GDP growth, demand, inflation, interest rates and exchange rates, among others. Past experience has demonstrated the reliability of the Company’s forecasts, which allows it to base key assumptions on historical information. During 2020, the deviations observed with respect to the projections used to perform impairment testing as of December 31, 2019, were not significant and cash flows generated in 2020 remained in a reasonable variance range compared to those expected for that period, with the exception of the effects generated by the COVID-19 pandemic. Despite the degree of uncertainty of the evolution of the macroeconomic environment in the short term, as a result of COVID-19, Management has evaluated the recovery scenarios and has determined that there is no evidence of impairment in the Group's CGUs, which would make it necessary to estimate their value in use. If the recoverable amount of the CGU is less than the net carrying amount of the asset, the related impairment loss is recognized for the difference, and charged to “Impairment loss (impairment reversals) recognized in profit or loss” in the consolidated statement of comprehensive income. The impairment is first allocated to the CGU’s goodwill carrying amount, if any, and then to the other assets comprising it, prorated on the basis of the carrying amount of each one, limited to the fair value less costs of disposal, or value in use, where no negative amount could be obtained. Impairment losses recognized in prior periods for an asset other than goodwill are reversed, if and only if, there has been a change in the estimates used to determine the asset’s recoverable amount since the last impairment loss was recognized. If this is the case, the carrying amount of the asset is increased to its recoverable amount with a credit to profit or loss, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset. For goodwill, impairment losses are not reversed in subsequent periods.
Leases	f) Leases In order to determine whether an arrangement is, or contains, a lease, Enel Chile assesses the economic substance of the agreement, assessing whether the agreement conveys the right to control the use of an identified asset for a period of time in exchange for consideration. Control is considered to exist if the customer has i) the right to obtain substantially all the economic benefits arising from the use of an identified asset; and ii) the right to direct the use of the asset. f.1) Lessee When the Group acts as a lessee at the commencement of the lease (i.e. on the date on which the underlying asset is available for use) it records a right-of-use asset and a lease liability in the statement of financial position. The Group initially recognizes right-of-use assets at cost. The cost of right-of-.use assets comprises: (i) the amount of the initial measurement of the lease liability; (ii) lease payments made until the commencement date less lease incentives received, (iii) initial direct costs incurred; and (iv) the estimate of decommissioning or restoration costs. Subsequently, the right-of-use asset is measured at cost, adjusted by any re measurement of the lease liability, less accumulated depreciation and accumulated impairment losses. A right-of-use asset is depreciated on the same terms as other similar depreciable assets, as long as there is reasonable certainty that the lessee will acquire ownership of the asset at the end of the lease. If no such certainty exists, the leased assets are depreciated over the shorter of the useful lives of the assets and their lease term. The same criteria detailed in Note 3.e are applied to determine whether the right-of-use asset has become impaired. Lease liabilities are initially measured at the present value of the lease payments, discounted at the Company's incremental borrowing rate, if the interest rate implicit in the lease cannot be readily determined. The incremental borrowing rate is the interest rate that the company would have to pay to borrow over a similar term, and with similar security, the funds necessary to obtain an asset of similar value to the right-of-use asset in a similar economic environment. The Group determines its incremental borrowing rate using observable data (such as market interest rates) or by making specific estimates when observable rates are not available (e.g., for subsidiaries that do not engage in financing transactions) or when they must be adjusted to reflect the terms and conditions of the lease (e.g., when the leases are not in the subsidiary's functional currency). Lease payments included in the measurement of liabilities comprise: i) fixed payments, less any lease incentive receivable; ii) variable lease payments that depend on an index or a rate; iii) residual value guarantees if it is reasonably certain that the Group will exercise that option; iv) the exercise price of a purchase option, if the Group is it is reasonably certain to exercise that option; and v) penalties for terminating the lease, if any. After the commencement date, the lease liability increases to reflect the accrual of interest and is reduced by the lease payments made. In addition, the carrying amount of the liability is remeasured if there is a change in the terms of the lease (changes in the lease term, in the amount of expected payments related to a residual value guarantee, in the evaluation of a purchase option or in an index or rate used to determine lease payments). Interest expense is recognized as finance cost and distributed over the years making up the lease period, so that a constant interest rate is obtained in each year on the outstanding balance of the lease liability. Short-term leases of one year or less or leases of low value assets are exempt from the application of the recognition criteria described above, with the payments associated with the lease recorded as an expense on a straight-line basis over the term of the lease. Right-of-use assets and lease liabilities are presented separately from other assets and liabilities, respectively, in the consolidated statement of financial position. f.2) Lessor When the Group acts as a lessor, it classifies at the commencement of the agreement whether the lease is an operating or finance lease, based on the substance of the transaction. Leases in which all the risks and rewards incidental to ownership of an underlying asset are substantially transferred are classified as finance leases. All other leases are classified as operating leases. For finance leases, at the commencement date, the Company recognizes in its statement of financial position the assets held under finance leases and presents them as an account receivable, for an amount equal to the net investment in the lease, calculated as the sum of the present value of the lease payments and the present value of any accrued residual value, discounted at the interest rate implicit in the lease. Subsequently, finance income is recognized over the term of the lease, based on a model that reflects a constant rate of return on the net financial investment made in the lease. For operating leases, lease payments are recognized as income on a straight-line basis, over the term of the lease unless another type of systematic basis of distribution is deemed more representative. The initial direct costs incurred in obtaining an operating lease are added to the carrying amount of the underlying asset and are recognized as expense throughout the lease period, applying the same basis as for rental income.
Financial instruments	g) Financial instruments Financial instruments are contracts that give rise to both a financial asset in one entity and a financial liability or equity instrument in another entity. g.1) Financial assets other than derivatives The Group classifies its non-derivative financial assets, whether permanent or temporary, excluding investments accounted for using the equity method (see Notes 3.i and 13) and non-current assets held for sale (see Note 3.k), in three categories: (i) Amortized cost This category includes the financial assets that meet the following conditions (i) the business model that supports the financial assets seeks to maintain such financial assets to obtain contractual cash flows, and (ii) the contractual terms of such financial assets give rise on specific dates to cash flows that are solely payments of principal and interest (SPPI criterion). Financial assets that meet the conditions established in IFRS 9, to be valued at amortized cost in the Group are: cash equivalents, accounts receivable and, loans. Such assets are recorded at amortized cost, which is the initial fair value, less repayments of principal, plus uncollected accrued interest, calculated using the effective interest method. The effective interest method is a method for calculating the amortized cost of a financial asset or a financial liability (or a group of financial assets or financial liabilities) and allocating the finance income or financial costs throughout the relevant period. The effective interest rate is the discount rate that exactly matches the estimated cash flows to be received or paid over the expected useful life of the financial instrument (or when appropriate in a shorter period of time), with the net carrying amount of the financial asset or financial liability. (ii) Financial Assets Recorded at Fair Value through Other Comprehensive Income This category includes the financial assets that the meet the following conditions: (i) they are classified in a business model, the purpose of which is to maintain the financial assets both to collect the contractual cash flows and to sell them, and (ii) the contractual conditions meet the SPPI criterion. These financial assets are recognized in the consolidated statement of financial position at fair value when this can be determined reliably. For the holdings in unlisted companies or companies with low liquidity, it is usually not possible to determine the fair value reliably, therefore, when this occurs, such holdings are valued at their acquisition cost or for a lower amount if there is evidence of their impairment. Changes in fair value, net of their tax effect, are recorded in the consolidated statement of comprehensive income: Other comprehensive income, until the disposal of these financial assets, where the accumulated amount in this section is fully allocated to profit or loss for the period except for investments in equity instruments where the accumulated balance in other comprehensive income is never reclassified to profit or loss. In the event that the fair value is lower than the acquisition cost, if there is objective evidence that the asset has suffered an impairment that cannot be considered as temporary, the difference is recorded directly in the loss for the period. (iii) Financial Assets Recorded at Fair Value through Profit or Loss This category includes the trading portfolio of the financial assets that have been allocated as such upon their initial recognition and which are managed and assessed according to the fair value criterion, and the financial assets that do not meet the conditions to be classified in the two categories indicated above. These are valued in the consolidated statement of financial position at fair value, and variations in their value are recorded directly in income when they occur. g.2) Cash and cash equivalents This item within the consolidated statement of financial position includes cash and bank balances, time deposits, and other highly liquid investments (with original maturity of less than or equal to 90 days) that are readily convertible into cash and are subject to insignificant risk of changes in value. g.3) Impairment of financial assets Following the requirements of IFRS 9, the Group applies an impairment model based on the determination of expected credit losses, based on the Group's past history, existing market conditions, as well as forward-looking estimates at the end of each reporting period. This model is applied to financial assets measured at amortized cost or measured at fair value through other comprehensive income, except for investments in equity instruments. Expected credit loss is the difference between the contractual cash flows that are due in accordance with the contract and all the cash flows that are expected to be received (i.e. all cash shortfalls), discounted at the original effective interest rate. It is determined considering: i) the probability of default (PD, Probability of Default); ii) loss given default (LGD, Loss Given Default), and iii) exposure at default (EAD, Exposure at Default). To determine the expected credit losses the Group applies two separate approaches: · General approach : applied to financial assets other than trade accounts receivable, contractual assets or lease receivables. This approach is based on the evaluation of significant increases in the credit risk of financial assets, from the date of initial recognition. If on the reporting date of the financial statements the credit risk has not increased significantly, the impairment losses are measured related to the expected credit losses in the next 12 months; if, on the contrary, the credit risk has increased significantly, the impairment is measured considering the expected credit losses throughout the lifetime of the asset. In general, the measurement of expected credit losses for financial assets other than trade accounts receivable, contractual assets or lease receivables, are performed separately. · Simplified approach: The Group applies a simplified approach for trade receivables, contract assets and lease receivables so that the impairment provision is always recognized related to the lifetime expected credit losses for the asset. This is the approach that the Group has mostly applied because trade receivables represent the main financial asset of Enel Chile and its subsidiaries. For trade accounts receivable, contractual assets and lease receivables, the Group applies two types of evaluations of expected credit losses: - Collective evaluation: based on grouping accounts receivable into specific groups or “clusters”, taking into account each business and the local regulatory context. Accounts receivable are grouped according to the characteristics of customer portfolios in terms of credit risk, maturity information and recovery rates. A specific definition of default is considered for each group. To measure the expected credit losses collectively, the Group considers the following assumptions: - PD: average default estimate, calculated for each group of trade receivables, taking into account a minimum of 24-month historical data. - LGD: calculated based on the recovery rates of a predetermined section, discounted at the effective interest rate; and - EAD: accounting exposure on reporting date, net of cash deposits, including invoices issued, but not due and invoices to be issued. - Analytical or individual evaluation: if accounts receivable are considered individually significant by Management and there is specific information regarding any significant increase in the credit risk, the Group applies an individual evaluation of accounts receivable. For the individual evaluation, the PD is obtained mainly from an external supplier, when it is possible to do so, and the LGD through an internal model that considers the recovery rate and other contractual and financial characteristics of accounts receivable. The expected credit loss is obtained by multiplying both factors by the EAD, which is defined as the accounting exposure at the reporting date, including the invoices issued but not due and invoices to be issued for services rendered, net of potential cash deposits obtained as guarantees. On the basis of the benchmark market and the regulatory context of the sector, as well as the recovery expectations after 90 days, for those accounts receivable, the Group mainly applies a predetermined definition of 180 days overdue to determine expected credit losses, since this is considered an effective indicator of a significant increase in credit risk. Consequently, financial assets that are more than 90 days overdue generally are not considered to be in default. Based on specific evaluations performed by Management, the prospective adjustment can be applied considering qualitative and quantitative information to reflect possible future events and macroeconomic scenarios, which may affect the risk of the portfolio or the financial instrument. g.4) Financial liabilities other than derivatives General financial liabilities are initially recognized, at fair value net of any costs incurred in the transaction. In subsequent periods, these obligations are measured at their amortized cost using the effective interest method (see Note 3.g.1). Lease liabilities are initially measured at the present value of future lease payments, determined in accordance with the criteria described in Note 3.f. In the particular case that a liability is the hedged item in a fair value hedge, as an exception, such liability is measured at its fair value for the portion of the hedged risk. In order to calculate the fair value of debt, both when it is recorded in the statement of financial position and for fair value disclosure purposes as shown in Note 23, debt has been divided into fixed interest rate debt (hereinafter “fixed-rate debt”) and floating interest rate debt (hereinafter “floating-rate debt”). Fixed-rate debt is that on which fixed-interest coupons established at the beginning of the transaction are paid explicitly or implicitly over its term. Floating-rate debt is that debt issued at floating interest rate, i.e., each coupon is established at the beginning of each period based on the benchmark interest rate. All debt has been measured by discounting expected future cash flows with a market interest rate curve based on the payment currency. g.5) Derivative financial instruments and hedge accounting Derivatives held by the Group are transactions entered into to hedge interest and/or exchange rate risk, intended to eliminate or significantly reduce these risks in the underlying transactions being hedged. Derivatives are recorded at fair value at the end of each reporting period as follows: if their fair value is positive, they are recorded within “Other financial assets” and if their fair value is negative, they are recorded within “Other financial liabilities”. For derivatives on commodities, positive fair value is recorded in “Trade and other receivables”, and negative fair value, if any, is recognized in “Trade and other liabilities.” Changes in fair value are recorded directly in profit or loss, except when the derivative has been designated for hedge accounting purposes as a hedging instrument and all of the conditions for applying hedge accounting established by IFRS are met, including that the hedge is highly effective. In this case, changes are recognized as follows: - Fair value hedges: The underlying portion for which the risk is being hedged and the hedging instrument are measured at fair value, and any changes in the value of both items are recognized in the statement of comprehensive income offsetting the effects in the same caption of the statement comprehensive income. - Cash flow hedges: Changes in the fair value of the effective portion of the hedged item and hedge instrument are recognized in other comprehensive income and accumulated in an equity reserve referred to as Hedging reserve. The cumulative loss or gain in this caption is transferred to the consolidated statement of comprehensive income to the extent that the hedged item impacts the consolidated statement of comprehensive income offsetting the effect in the same comprehensive income statement caption. Gains or losses from the ineffective portion of the hedging relationship are recognized directly in the statement of comprehensive income. Hedge accounting is discontinued only when the hedging relationship (or a part of the relationship) fails to meet As a general rule, long-term commodity purchases or sales agreements are recognized in the statement of financial position at their fair value at the end of each reporting period, recognizing any differences in value directly in profit or loss, except for, when all of the following conditions are met: - The sole purpose of the agreement is for its own use, which is understood as: for fuel purchase agreements such use is to generate electricity; for electrical energy purchased for sale, its sale is to the end-customers; and for electricity sales its sale is to the end-customers. - The Group’s future projections evidence the existence of these agreements for own use. - Past experience with agreements shows that they have been use for the Group’s “own use”, except for certain isolated cases when for exceptional reasons or reasons associated with logistical issues, these have been used for other purposes beyond the Group’s control and expectations. - The agreement does not establish net settlement of differences and there has been no practice to settle similar differences in similar contracts in the past. The long-term commodity purchase or sale agreements maintained by the Group, which are mainly for electricity, fuel, and other supplies, meet the conditions described above. Accordingly, the purpose of fuel purchase agreements is to use them to generate electricity, electricity purchase contracts for use in sales to end-customers, and electricity sale contracts for sale of the Group’s own products. The Group also evaluates the existence of derivatives embedded in contracts or financial instruments to determine if their characteristics and risk are closely related to the host contract, provided that when taken as a whole they are not being accounted for at fair value. If they are not closely related, they are recorded separately and changes in value are accounted for directly in the statement of comprehensive income. g.6) Derecognition of financial assets and liabilities Financial assets are derecognized when: - The contractual rights to receive cash flows from the financial asset expire or have been transferred or, even when, the Group has assumed a contractual obligation to pay these cash flows to one or more recipients. - The Group has substantially transferred all the risks and rewards of their ownership, or, if it has neither assigned nor retained substantially all the risks and rewards, when it does not retain control of the financial asset. For transactions in which the Group retains substantially all the inherent risks and rewards of their ownership of the financial asset assigned, it recognizes them as a financial liability for the consideration received. Transactions costs are recognized in profit and loss by using the effective interest method (see Note 3.g.1). Financial liabilities are derecognized when they are extinguished; i.e., when the obligation arising from the liability has been paid or cancelled or has expired. An exchange for a debt instrument with substantially different conditions, or a substantial modification in the current conditions of an existing financial liability (or a part thereof), is recorded as a cancellation of the original financial liability, and a new financial liability is recognized. g.7) Offsetting of financial assets and financial liabilities The Group offsets financial assets and liabilities and the net amount is presented in the statement of financial position only when: - there is a legally binding right to offset the amounts recognized; and - the Group intends to settle them on a net basis, or to realize the asset and settle the liability simultaneously. Such rights may only be legally enforceable in the normal course of business, or in the event of default, or in the event of insolvency or bankruptcy, of one or all the counterparties. g.8) Financial guarantee contracts The financial guarantee contracts, defined as the guarantees issued by the Group to third parties, are initially measured at their fair value, adjusted for transaction costs that are directly attributable to the issuance of the guarantee. Subsequent to initial recognition, financial guarantee contracts are recognized at the higher of: - the amount of the liability determined in accordance with the accounting policy described in Note 3.m; and - the amount of the asset initially recognized less, if applicable, any accumulated amortization recognized in accordance with the revenue recognition policies described in Note 3.q.
Fair value measurement	h) The fair value of an asset or liability is defined as the price that would be received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market, namely, the market with the greatest volume and level of activity for that asset or liability. In the absence of a principal market, it is assumed that the transaction is carried out in the most advantageous market available to the entity, namely, the market that maximizes the amount that would be received to sell the asset or minimizes the amount that would be paid to transfer the liability. In estimating fair value, the Group uses valuation techniques that are appropriate for the circumstances and for which there is sufficient data to perform the measurement where it maximizes the use of relevant observable data and minimizes the use of unobservable data. Given the hierarchy explained below, data used in the valuation techniques, assets and liabilities measured at fair value can be classified at the following levels: · Level 1: Quoted prices (unadjusted) in active markets for identical assets or liabilities; · Level 2: Inputs other than quoted prices included in Level 1 that are observable for the assets or liabilities, either directly (i.e. as prices) or indirectly (i.e. derived from prices). The methods and assumptions used to determine the fair values at Level 2 by type of financial assets or financial liabilities take into consideration estimated future cash flows discounted at market rates. Future cash flows for financial assets and financial liabilities are discounted with the zero coupon interest rate curves for each currency (these valuations are performed using external tools such as Bloomberg).; and · Level 3: Inputs for assets or liabilities that are not based on observable market data (unobservable inputs). The Group takes into account the characteristics of the asset or liability when measuring fair value, in particular: - For non-financial assets, fair value measurement takes into account the ability of a market participant to generate economic benefits by using the asset in its highest and best use or by selling it to another market participant that would use the asset at its highest and best use; - For liabilities and equity instruments, the fair value measurement assumes that the liability would not be settled, and an equity instrument would not be cancelled or otherwise extinguished on the measurement date. The fair value of the liability reflects the effect of non-performance risk, namely, the risk that an entity will not fulfill the obligation, which includes but is not limited to, the Company’s own credit risk; - For derivatives not traded in active markets, the fair value is determined by using the discounted cash flow method and generally accepted options valuation models, based on current and future market conditions as of the closing date of the financial statements. This methodology also adjusts the value based on the Company’s own credit risk (Debt Valuation Adjustment, DVA), and the counterparty risk (Credit Valuation Adjustment, CVA). These Credit Valuation Adjustment CVA / Debt Valuation Adjustment DVA adjustments are measured on the basis of the potential future exposure of the instrument (asset or liability position) and the risk profile of both the counterparties and the Group itself. - For financial assets and financial liabilities with offsetting positions in market risks or counterparty credit risks, measuring the fair value on a net basis is allowed. However, this must be consistent with the manner in which market participants would price the net risk exposure at the measurement date. Financial assets and financial liabilities measured at fair value are shown in Note 23.3.
Investments accounted for using the equity method	i) Investments accounted for using the equity method The Group’s interests in joint ventures and associates are recognized using the equity method of accounting. Under the equity method of accounting, an investment in an associate or joint venture is initially recognized at cost. As of the acquisition date, the investment is recognized in the statement of financial position based on the share of equity that the Group’s interest represents in capital, adjusted for, if appropriate, the effect of transactions with the Group plus any goodwill generated in acquiring the company. If the resulting amount is negative, zero is recorded for that investment in the statement of financial position, unless the Group has a present obligation (either legal or constructive) to reinstate the Company’s equity position, in which case the related provision is recognized. The financial statements of associates or joint ventures are prepared for the same reporting period as the Group. When necessary, adjustments are made to align the accounting policies with those of the Group. Goodwill from the associate or joint venture is included in the carrying amount of the investment. It is not amortized but is subject to impairment testing as part of the overall investment carrying amount when there are indicators of impairment. Dividends received from these investments are deducted from the carrying amount of the investment, and any profit or loss obtained from them to which the Group is entitled based on its ownership interest is recognized under “Share of profit (loss) of associates accounted for using the equity method of accounting.” The companies classified as “Associates” and “Joint Ventures” (see Notes 2.5 and 2.6, respectively) in these consolidated financial statements are accounted for under the equity method of accounting.
Inventories	j) Inventories Inventories are measured at their weighted average acquisition cost or the net realizable value, whichever is lower. The net realizable value is the estimated selling price in the ordinary course of business less the applicable costs to sell. The cost of inventories includes all costs of purchase and all necessary costs incurred in bringing the inventories to their present location and condition net of trade discounts and other rebates.
Non-current assets (or disposal groups of assets) held for sale or held for distribution to owners and discontinued operations.	k) Non-current assets (or disposal groups of assets) held for sale or held for distribution to owners and discontinued operations. Non-current assets, including property, plant and equipment; intangible assets; investments accounted for using the equity method of accounting and joint ventures and disposal groups (a group of assets for disposal or distribution together with liabilities directly associated with those assets), are classified as: - Held for sale, if their carrying amount will be recovered mainly through a sale transaction rather than through continuing use, or - Held for distribution to owners, when the entity is committed to distribute the assets (or disposal groups) to the owners. For the above classifications, the assets must be available for immediate sale or distribution in their present condition and their sale or distribution must be highly probable. For a transaction to be considered highly probable, management must be committed to the sale or distribution and actions to complete the transaction must have been initiated and should be expected to be completed within one year from the date of classification. Actions required to complete the sale or distribution plan should indicate that it is unlikely that significant changes to the plan can be made or that the plan will be cancelled. The probability of shareholders’ approval (if required in the jurisdiction) should be considered as part of the assessment of whether the sale or distribution is highly probable. The assets or disposal groups classified as held-for-sale or held for distribution to owners are measured at the lower of their carrying amount and fair value less costs to sell or costs to distribute, as appropriate. Depreciation and amortization on these assets cease when they meet the criteria to be classified as non-current assets held for sale or held for distribution to owners. Assets that are no longer classified as held for sale or held for distribution to owners, or are no longer part of a disposal group, are measured at the lower of their carrying amounts before being classified as held for sale or held for distribution, less any depreciation, amortization or revaluation that would have been recognized had they had not been classified as held for sale or held for distribution to owners and their recoverable amount at the date of reclassification as non-current assets. Non-current assets held for sale and the components of the disposal groups classified as held for sale or held for distribution to owners are presented in the consolidated statement of financial position as a single line item within assets referred to as “Non-current assets or disposal groups held for sale or for distribution to owners”, and the related liabilities are presented as a single line item within liabilities referred to as “Liabilities included in disposal groups held for sale or for distribution to owners”. The Group classifies as discontinued operations those components of the Group that either have been disposed of, or are classified as held for sale and: - represent a separate major line of business or geographical area of operations; - is part of a single coordinated plan to dispose of a separate major line of business or geographical area of operations; or; - is a subsidiary acquired exclusively with a view to resale it. The after-tax results of discontinued operations are presented in a single line of the statement of comprehensive income referred to as "Profit (loss) from discontinued operations", as well as the gain or loss recognized from the measurement at fair value less costs to sell or from the disposal of the assets or groups for disposal comprising the discontinued operation.
Treasury shares	l) Treasury shares Treasury shares are presented deducting the caption “Total equity” in the consolidated statement of financial position and measured at acquisition cost. Gains and losses from the disposal of treasury shares are recognized directly in “Total Equity – Retained earnings (losses)”, without affecting profit or loss for the period.
Provisions	m) Provisions Provisions are recognized when the Group has a present obligation (legal or constructive) as a result of a past event, it is probable that an outflow of economic benefits will be required to settle the obligation, and a reliable estimate can be made of the amount of the obligation. The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. When a provision is measured using the cash flows estimated to settle the present obligation, its carrying amount is the present value of those cash flows (when the effect of the time value of money is material). The unwinding of the discount is recognized as finance cost. Incremental legal costs expected to be incurred in resolving a legal claim are included in measuring of the provision. Provisions are reviewed at the end of each reporting period and adjusted to reflect the current best estimate. If it is no longer probable that an outflow of resources embodying economic benefits will be required to settle the obligation, the provision is reversed. A contingent liability does not result in the recognition of a provision. Legal costs expected to be incurred in defending a legal claim are expensed as incurred. Significant contingent liabilities are disclosed unless the likelihood of an outflow of resources embodying economic benefits is remote. m.1) Provisions for post-employment benefits and similar obligations Certain of the Group’s companies have entered into pension and other similar commitments with their employees. Those defined benefit and defined contribution commitments are basically through pension plans, except for those related to certain benefits in lieu of payment, basically commitments to supply electric energy, which, due to their nature have not been outsourced and their coverage is provided through the related internal provision. For defined benefit plans, the companies record the related expense for these commitments following the accrual criteria over the service life of the employees through timely actuarial studies performed as of the reporting date calculated applying the projected credit unit method. The cost of past services which correspond to variances in benefits is recognized immediately. The defined benefit plan obligations in the statement of financial position represent the present value of the accrued obligations, upon deduction of the fair value of the different plans’ assets, if any. Actuarial gains and losses arising from measurements of both the plan liabilities and the plan asset, are recorded directly as a component of "Other comprehensive income".
Translation of balances in foreign currency	n) Translation of balances in foreign currency Transactions performed by each entity in a currency other than its functional currency are recognized using the exchange rates prevailing as of the date of the transactions. During the period, differences arising between the prevailing exchange rate at the date of the transaction and the exchange rate as of the date of collection or payment are recognized as “Foreign currency translation differences” in the consolidated statement of comprehensive income. Likewise, at the end of each reporting period, balances or payable denominated in a currency other than each entity’s functional currency are remeasured using the closing date exchange rate. Any differences are recorded as “Foreign currency translation differences” in the consolidated statement of comprehensive income. The Group has established a policy to hedge the portion of revenue from its consolidated entities that is directly linked to variations in the U.S. dollar, through obtaining financing in such currency. Exchange differences related to this debt, which is regarded as the hedging instrument in cash flow hedge transactions, are recognized, net of taxes, in other comprehensive income and are accumulated in an equity reserve and recorded in profit or loss in the term in which the cash flows hedged will be realized. This term has been estimated as ten years.
Classification of balances as current and non-current	o ) In these consolidated statements of financial position, assets and liabilities expected to be recovered or settled within twelve months are presented as current assets or liabilities, except for post-employment and other similar obligations. Those assets and liabilities expected to be recovered or settled in more than twelve months are presented as non-current items. Deferred income tax assets and liabilities are classified as non-current. When the Group has any obligations that mature in less than twelve months but can be refinanced over the long term at the Group’s discretion, through unconditionally available loan agreements with long-term maturities, such obligations are classified as non-current liabilities.
Income taxes	p) Income taxes Income tax expense for the period is determined as the sum of current taxes from each of the Group’s subsidiaries and results from applying the tax rate to the taxable income for the period, after deductions allowed have been made, plus any changes in deferred tax assets and liabilities and tax credits, both for tax losses and deductions. Differences between the carrying amount and tax basis of assets and liabilities generate deferred tax assets and liabilities, which are calculated using the tax rates expected to applied when the assets and liabilities are realized or settled, based on tax rates that have been enacted or substantively enacted by the end of the reporting period. Deferred tax assets are recognized for all deductible temporary differences, tax losses and unused tax credits to the extent that it is probable that sufficient future taxable profits exist to recover the deductible temporary differences and use the tax credits. Such deferred tax asset is not recognized if the deductible temporary difference arises from the initial recognition of an asset or liability that: - did not arise from a business combination; and - at initial recognition provide it affected neither accounting profit nor taxable profit (loss). With respect to deductible temporary differences associated with investments in subsidiaries, associates and joint arrangements, deferred tax assets are recognized only to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profits will be available against which the temporary differences can be utilized. Deferred tax liabilities are recognized for all temporary differences, except for those derived from the initial recognition of goodwill and those that arose from investments in subsidiaries, associates and joint ventures in which the Group can control their reversal and where it is probable that they will not be reversed in the foreseeable future. Current tax and changes in deferred tax assets or liabilities are recorded in profit or loss, other comprehensive income or total equity in the statement of financial position, depending on where the gains or losses that triggered these tax entries have been recognized. Any tax deductions that can be applied to current tax liabilities are credited to earnings within the line item “Income tax expenses”, except when uncertainty exits about their tax realization, in which case they are not recognized until they are effectively realized, or when they relate to specific tax incentives, in which case they are recorded as grants. At the end of each reporting period, the Group reviews the deferred tax assets and liabilities recognized, and makes, if any necessary corrections based on the results of this analysis. Deferred tax assets and deferred tax liabilities are offset in the consolidated statement of financial position if the Group has a legally enforceable right to set off current tax assets against current tax liabilities, and only when the deferred taxes relate to income taxes levied by the same tax authority.
Revenue and expense recognition	q) Revenue and expense recognition Revenue is recognized when (or as) the control over a good or service is transferred to the customer. Revenue is measured based on the consideration to which the Group is expected to be entitled for said transfer of control, excluding the amounts collected on behalf of third parties. The Group analyzes and takes into consideration all the relevant facts and circumstances for revenue recognition, applying the five step model established by IFRS 15: 1) Identifying the contract with a customer; 2) Identifying the performance obligations; 3) Determining the transaction price; 4) Allocating the transaction price; and 5) Recognizing revenue. The following are the criteria for revenue recognition by type of good or service provided by the Group: · Electricity supply (sale and transportation): Corresponds to a single performance obligation that transfers to the customer a number of different goods/services that are substantially the same and that have the same transfer pattern. Since the customer receives and simultaneously consumes the benefits provided by the Company, it is considered a performance obligation met over time. In these cases, the Group applies an output method to recognize revenue in the amount to which it is entitled to bill for electricity supplied to date. - Generation: revenue is recorded according to the physical deliveries of energy and power, at the prices established in the respective contracts, at the prices established in the electricity market by the current regulations, or at the marginal cost of energy and power, depending on whether they are unregulated customers, regulated customers or energy trading in the spot market are involved, respectively. - Distribution of electricity: Revenue is recognized based on the amount of energy supplied to customers during the period, at prices established in the related contracts or at prices stipulated in the electricity market by applicable regulations, as appropriate. These revenues include an estimate of the service provided and not invoiced, through the reporting date of the · Gas sale and transport: revenue is recognized over time based on the actual physical deliveries of gas in the consumption period, at the prices established in the respective contracts. · Other Services: mainly the provision of supplementary services to the electricity business, construction of works and engineering and consulting services. Customers control committed assets as they are created or improved. Therefore, the Company recognizes this revenue over time based on the progress, measuring progress through output methods (percentage of completion through the present date, milestones reached, etc.), or costs incurred (resources consumed, hours of labor spent, etc.), as appropriate in each case. · Sale of goods: revenue from the sale of goods is recognized at a certain time, when control of the goods has been transferred to the customer, which generally occurs at the time of the physical delivery. Revenues are measured at the independent sale price of each good, and any type of applicable variable compensation. In contracts in which multiple committed goods and services are identified, the recognition criteria will be applied to each of the identifiable performance obligations of the transaction, based on the control transfer pattern of each good or service that is separate and an independent selling price allocated to each of them, or jointly to two or more transactions, when these are linked to contracts with customers that are negotiated with a single business purpose and the goods and services committed represent a single performance obligation and their selling prices are not independent. The Group determines the existence of significant financing components in its contracts, adjusting the value of the consideration if applicable, to reflect the effects of the time value of money. However, the Group applies the practical expedient provided by IFRS 15, and will not adjust the value of the consideration committed for the purpose of a significant financing component, if it expects, at the beginning of the contract, that the period between the payment and the transfer of goods or service to the customer is one year or less. The Group excludes the gross revenue of economic benefits received when acting as an agent or broker on behalf of third parties from the revenue amount. The Group only records as revenue the payment or commission to which it expects to be entitled. Because the Group mainly recognizes revenue for the amount to which it has the right to invoice, it has decided to apply the disclosure practical expedient provided in IFRS 15, through which it is not required to disclose the aggregate amount of the transaction price allocated to the performance not met (or not met partially) at the end of the reporting period. In addition, the Group evaluates the existence of incremental costs of obtaining a contract and costs directly related to the fulfillment of a contract. These costs are recognized as an asset, if their recovery is expected, and amortized in a manner consistent with the transfer of the related goods or services. As a practical expedient, the incremental costs of obtaining a contract are recognized as an expense, if the depreciation period of the asset that has been recognized is one year or less. Costs that do not qualify for capitalization are recognized as expenses at the time they are incurred, unless they are explicitly attributable to the customer. As of December 31, 2020 and 2019, the Group has not incurred costs to obtain or perform a contract which meet the conditions for their capitalization. The costs incurred to obtain a contract are substantially commission payments for sales that, although are incremental costs, relate to short-term contracts or performance obligations that are met at a certain time, therefore, the Group has decided to recognize these costs as an expense when they occur. Interest income (expenses) are recorded considering the effective interest rate applicable to the principal pending amortization, during the related accrual period.
Earnings per share	r ) Earnings per share Basic earnings per share are calculated by dividing net income attributable to shareholders of the Parent Company by the weighted average number of ordinary shares of outstanding during the period, excluding the average number of shares of the Company held by other subsidiaries within the Group, if any. Basic earnings per share for continuing and discontinued operations are calculated by dividing net income from continuing and discontinued operations attributable to shareholders of the Company (the numerator) by the weighted average number of shares of common stock outstanding (the denominator) during the year, excluding the average number of shares of the Company held by other subsidiaries within the Group. Diluted earnings per share is calculated by dividing profit attributable to shareholders of the Parent Company by the weighted average number of ordinary shares outstanding during the period plus the weighted average number of ordinary shares of that would be issued on conversion of all the potential dilutive securities into ordinary shares, if any.
Dividends	s) Article No. 79 of Law No. 18,046 (the “Chilean Corporations Act”), establishes that, unless unanimously agreed otherwise by the shareholders of all issued shares, listed corporations must distribute a cash dividend to shareholders on an annual basis, pro rata among the shares owned or the proportion established in the Company’s by-laws if there are preferred shares, of at least 30% of profit for each year, except when accumulated losses from prior years must be absorbed. As it is practically impossible to achieve a unanimous agreement given Enel Américas’ highly fragmented share ownership, at the end of each reporting period the amount of the minimum statutory dividend obligation to its shareholders is determined, net of interim dividends approved during the period, and then accounted for in “Trade and other payables, currrent”, current” and “Current accounts payable to related parties”, as appropriate, and recognized in equity. The interim and final dividends are deducted from equity when approved by the relevant authority, which in the first case is normally the Board of Directors and in the second case is the responsibility of the shareholders as agreed at a General Shareholders’ Meeting.
Share issuance costs	t) Share issuance costs Share issuance costs, only when they represent incremental expenses directly attributable to the transaction, are recognized directly in net equity as a deduction from “Share premiums,” net of any applicable taxes. If the share premium account has a zero balance or if the costs described exceed the balance, they are recognized in “Other reserves”. Subsequently, these costs must be deducted from paid-in capital, and this deduction that must be approved at the Extraordinary Shareholders’ Meeting, which occurs immediately after the date on which the disbursements were incurred. Share issuance and placement expenses directly related to a probable future transaction are recorded as prepaid expenses in the statement of financial position. These expenses are recorded in equity upon issuance and placement of the shares, or in profit or loss when the condition changes and the transaction is no longer expected to occur.
Statement of cash flows	u) Statement of cash flows The statement of cash flows reflects changes in cash and cash equivalents that took place during the period, determined with the direct method. It uses the following definitions and related meanings: - Cash flows: inflows and outflows of cash or cash equivalents, which are defined as highly liquid investments maturing in less than three months with a low risk of changes in value. - Operating activities: the principal revenue-producing activities of the Group that cannot be considered investing or financing activities. - Investing activities: the acquisition and disposal of long-term assets and other investments not included in cash and cash equivalents. Financing activities: activities that result in changes in the size and composition of the total equity and borrowings of the Group.

Basis of Presentation of the _2

Basis of Presentation of the Consolidated Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2020
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Schedule of subsidiaries	Ownership % at Percentage at Taxpayer ID Company Country Currency Direct Indirect Total Direct Indirect Total 76.722.488-5 Empresa de Transmisión Chena S.A. Chile Chilean peso — — 96.783.910-8 Enel Colina S.A.(i) Chile Chilean peso — — 96.504.980-0 Empresa Eléctrica Pehuenche S.A. Chile Chilean peso — — 96.800.460-3 Luz Andes Ltda. (ii) Chile Chilean peso — — — — 96.800.570-7 Enel Distribución Chile S.A. (**) Chile Chilean peso — 91.081.000-6 Enel Generación Chile S.A. Chile Chilean peso — 78.932.860-9 GasAtacama Chile S.A. (v) Chile Chilean peso — — — — — 78.952.420-3 Gasoducto Atacama Argentina S.A.(v) Chile Chilean peso — — — — — 77.047.280-6 Sociedad Agrícola de Cameros Ltda. Chile Chilean peso — 96.920.110-0 Enel Green Power Chile Ltda. (iii) Chile U.S. dollar — — — 76.412.562-2 Enel Green Power Chile S.A. (iii) (*) Chile U.S. dollar — — 76.052.206-6 Parque Eólico Valle de los Vientos SpA (iii) Chile U.S. dollar — — — 76.306.985-0 Diego de Almagro Matriz SpA (iii) Chile U.S. dollar — — — — 96.524.140-K Empresa Eléctrica Panguipulli S.A. (iv) Chile U.S. dollar — — — 76.321.458-3 Almeyda Solar SpA (*) Chile U.S. dollar — — 76.179.024-2 Parque Eólico Tal Tal SpA (iv) Chile U.S. dollar — — — 96.971.330-6 Geotérmica del Norte S.A. Chile U.S. dollar — — 99.577.350-3 Empresa Nacional de Geotermia S.A. (***) Chile U.S. dollar — — 76.126.507-5 Parque Talinay Oriente S.A. Chile U.S. dollar — — 76.924.079-9 Enel X Chile Spa Chile Chilean peso —
Schedule of investment in associates	Ownership % at Percentage at Taxpayer ID No. Company Country Currency Direct Indirect Total Direct Indirect Total 76.418.940-K GNL Chile S.A. Chile U.S. dollar — 33.33% 33.33% — 33.33% 33.33% 76.364.085-K Energía Marina SpA Chile Chilean peso — 25.00% 25.00% — 25.00% 25.00% 77.157.779-2 Enel AMPCI Ebus Chile SpA (*) Chile U.S. dollar — 20.00% 20.00% — — —
Schedule of Associates and Joint Venture	Ownership % at Percentage at Taxpayer ID No. Company Country Currency Direct Indirect Total Direct Indirect Total 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Chilean peso — 50.00% 50.00% — 50.00% 50.00%
Schedule of general price index	General price index From January to December 2018 47.83% From January to December 2019 53.64% From January to December 2020 36.13%

Accounting Policies (Tables)

Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
ACCOUNTING POLICIES
Summary of Estimated Useful Lives of Property, Plant and Equipment	The following are the main categories of property, plant and equipment with their related estimated useful lives: Classes of property, plant and equipment Years of estimated useful life Buildings 10 – 60 Plant and equipment 6 – 65 IT equipment 3 – 15 Fixtures and fittings 2 – 35 Motor vehicles 5 – 10 In addition, for further information, the following is a more detailed breakdown of the class of plant and equipment: Class of plant and equipment Years of estimated Generating plant and equipment Hydroelectric plants Civil engineering works 10 – 65 Electromechanical equipment 10 – 45 Combined cycle power plants 10 – 25 Renewable 20 Distribution plant and equipment:: High-voltage network 10 – 60 Low- and medium-voltage network 10 – 50 Measuring and remote control equipment 10 – 50 Primary substations 6 – 25 Natural gas transportation Gas pipelines 20

Business Combinations Under C_2

Business Combinations Under Common Control (Tables)	12 Months Ended
	Dec. 31, 2020
BUSINESS COMBINATIONS UNDER COMMON CONTROL
Summary of Carrying amount of EGPL assets and liabilities at the date of merger	Carrying amount of EGPL assets and liabilities at the date of merger: Identifiable net assets acquired ThCh$ Cash and cash equivalents 12,173,982 Other current financial assets 8,460 Other current non-financial assets 3,832,583 Trade and other receivables, current 27,414,273 Current receivables to related parties 73,749,131 Inventories 2,851,171 Current tax assets 2,750,250 Other non-current financial assets 5,685,422 Other non-current non-financial assets 262,878 Trade and other receivables, non-current 43,829,961 Intangible assets other than goodwill 41,786,159 Goodwill 6,652,935 Property, plant and equipment 1,365,850,084 Deferred tax assets 21,246,605 Other current financial liabilities Trade and other current payables, current Current payables to related parties Current tax liabilities Other non-current financial liabilities Non-current accounts payable to related parties Other non-current provision Deferred tax liabilities Provisions for non-current employee benefits Net identifiable assets acquired 739,030,509

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2020
CASH AND CASH EQUIVALENTS
Summary of Cash and Cash Equivalents	a) The details of cash and cash equivalents as of December 31, 2020 and 2019 are as follows: As of December 31, 2020 2019 Cash and Cash Equivalents ThCh$ ThCh$ Cash balances 42,660 31,416 Bank balances 330,471,774 24,960,269 Time deposits 591,570 14,600,772 Other fixed-income instruments 930,009 196,092,043 Total 332,036,013 235,684,500
Summary of Cash and Cash Equivalents by Currency	a) The detail, by type of currency, of the above balance is as follows: As of December 31, 2020 2019 Currency ThCh$ ThCh$ Chilean peso 300,357,148 209,818,277 Argentinean peso 3,977,675 7,096,519 Euro 83,819 654,319 U.S. dollar 27,617,371 18,115,385 Total 332,036,013 235,684,500
Summary of Components of Other Payments for Operating Activities	a) The following table records the components of “Other payments for operating activities” line item in the Statement of Cash Flows: 2020 2019 2018 Other payments from operating activities ThCh$ ThCh$ ThCh$ VAT tax debit (135,096,018) (123,065,058) (111,371,155) Emissions tax (23,800,541) (15,563,495) (16,437,441) Others (11,394,034) (15,871,496) (9,543,503) Total (170,290,593) (154,500,049) (137,352,099)
Summary of Reconciliation of Liabilities Arising from Financing Activities	a) Reconciliation of liabilities arising from financing activities: Financing Cash Flows Non-Cash Changes Liabilities arising from financing activities Balance as of From Used Interest paid Total Acquisition of subsidiaries Changes in fair Foreign exchange Financial costs New Other changes Balance as of ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Short-term loans 158,284,616 199,395 (150,878,247) (137,759,315) (288,438,167) — (1,893,193) 3,280,020 133,794,543 — 152,545,857 157,573,676 Long-term loans 2,470,532,068 484,520,001 (4,791,827) — 479,728,174 — 12,628,182 (165,703,734) 2,646,905 — (151,799,376) 2,648,032,219 Lease liabilities (Nota 21) 53,407,689 — (4,940,582) (1,492,089) (6,432,671) — — 48,124 2,137,451 2,704,926 — 51,865,519 Assets held to cover liabilities arising from financing activities (4,862,949) 708,062 — — 708,062 — (4,578,826) (7,756,977) — — — (16,490,690) Total 2,677,361,424 485,427,458 (160,610,656) (139,251,404) 185,565,398 — 6,156,163 (170,132,567) 138,578,899 2,704,926 746,481 2,840,980,724 Financing Cash Flows Non-Cash Changes Liabilities arising from financing activities Balance as of From Used Interest paid Total Acquisition of subsidiaries Changes in fair Foreign exchange Financial costs New Other changes Balance as of ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Short-term loans 408,415,562 — (350,652,302) (133,788,145) (484,440,447) — — 9,096,964 134,487,859 — 90,724,678 158,284,616 Long-term loans 2,140,557,500 283,799,437 — — 283,799,437 — 7,924,704 137,637,204 — — (99,386,777) 2,470,532,068 Lease liabilities (Nota 21) 14,476,449 — (4,498,202) (641,609) (5,139,811) — — 4,437,228 1,815,169 37,818,654 — 53,407,689 Assets held to cover liabilities arising from financing activities (43,213,556) 1,823,783 — — 1,823,783 — 38,471,730 (2,231,057) — — 286,151 (4,862,949) Total 2,520,235,955 285,623,220 (355,150,504) (134,429,754) (203,957,038) — 46,396,434 148,940,339 136,303,028 37,818,654 (8,375,948) 2,677,361,424 Financing Cash Flows Non-Cash Changes Liabilities arising from financing activities Balance as of From Used Interest paid Total Acquisition of subsidiaries Changes in fair Foreign exchange Financial costs New Other changes Balance as of ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Short-term loans 15,760,182 287,759,113 (168,360,646) (115,801,821) 3,596,646 71,502,040 24,229,123 9,525,539 149,113,811 — 134,688,221 408,415,562 Long-term loans 769,169,018 1,278,023,491 (674,473,125) — 603,550,366 649,261,789 2,541,108 261,981,228 — — (145,946,009) 2,140,557,500 Lease liabilities (Nota 21) 14,608,915 — (1,889,685) (739,070) (2,628,755) — — 1,757,219 739,070 — — 14,476,449 Assets held to cover liabilities arising from financing activities (50,828,136) — — — — (5,495,214) 21,619,259 (8,509,465) — — — (43,213,556) Total 748,709,979 1,565,782,604 (844,723,456) (116,540,891) 604,518,257 715,268,615 48,389,490 264,754,521 149,852,881 — (11,257,788) 2,520,235,955 It relates to accrual of interest .

Other Financial Assets (Tables)

Other Financial Assets (Tables)	12 Months Ended
	Dec. 31, 2020
OTHER FINANCIAL ASSETS
Summary of Other Financial Assets	Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Other Financial Assets ThCh$ ThCh$ ThCh$ ThCh$ Financial assets at fair value with changes in other comprehensive income 127,854 127,854 2,326,480 2,349,223 Financial assets Financial assets measured at amortized cost 808,692 860,425 — — Hedging derivatives 1,000,964 322,316 16,422,737 4,871,397 Non-Hedging derivatives 1,414,894 — 1,911,233 — Total 3,352,404 1,310,595 20,660,450 7,220,620

Other Non-financial Assets an_2

Other Non-financial Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
OTHER NON-FINANCIAL ASSETS AND LIABILITIES
Schedule of other non-financial assets	Currrent Non-Current Other non-financial assets 12-31-2020 12-31-2019 12-31-2020 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ VAT Tax Credit and Other Taxes 8,575,080 19,497,233 46,638,860 19,799,224 Prepaid expenses 9,991,447 12,329,859 — — Guarantee deposit — — 128,724 1,879,019 PPM water rights — — 7,910,531 7,670,114 Spare parts with a consumption schedule of more than 12 months — — 7,543,841 5,773,991 Other 1,235,046 2,807,471 3,565,259 2,927,836 Total 19,801,573 34,634,563 65,787,215 38,050,184
Schedule of other non-financial liabilities	Currrent Non-Current Other non-financial liabilities 12-31-2020 12-31-2019 12-31-2020 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ VAT Credit and Other Taxes 40,117,141 31,616,664 — — Reimbursable financial contributions — — 1,177,968 1,302,759 Splices 3,860,816 9,283,177 — Transfer of networks 1,473,486 2,845,708 — Products and services 954,609 1,088,498 — Other 760,529 674,336 — Total 47,166,581 45,508,383 1,177,968 1,302,759

Trade and Other Receivables (Ta

Trade and Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2020
TRADE AND OTHER RECEIVABLES.
Summary of Trade and Other Receivables, Net	As of December 31, 2020 2019 Trade and Other Receivables, Gross Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, gross 619,626,310 445,129,898 566,919,977 313,574,385 Trade receivables, gross 531,179,316 377,160,616 500,040,783 191,966,929 Accounts receivable from finance leases, gross 8,556,146 62,602,528 13,158,795 117,873,340 Other receivables, gross 79,890,848 5,366,754 53,720,399 3,734,116 As of December 31, 2020 2019 Trade and Other Receivables, Net Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, net 554,886,639 445,016,566 511,455,330 313,574,385 Trade receivables, net 481,442,020 377,047,284 456,552,682 191,966,929 Accounts receivable from finance leases, net 4,072,738 62,602,528 11,121,878 117,873,340 Other receivables, net (1) 69,371,881 5,366,754 43,780,770 3,734,116 (1) The detail of other accounts receivable is as follows: As of December 31, 2020 2019 Other receivables, net Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Recoveries from insurance companies 20,325 — 2,011,406 — Accounts receivable from employees 13,256,252 4,442,878 10,017,453 3,308,861 Advances to suppliers and creditors 43,102,611 909,661 19,864,669 415,787 Compensation for central claims Tarapacá and Bocamina 1 5,360,345 — — — Others 7,632,348 14,215 11,887,242 9,468 Total 69,371,881 5,366,754 43,780,770 3,734,116
Disclosure of maturity analysis of finance lease payments receivable [text block]	12-31-2020 12-31-2019 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 8,560,073 4,487,336 4,072,737 15,313,622 4,191,744 11,121,878 From one to two years 10,294,652 1,735,758 8,558,894 17,350,359 3,919,937 13,430,422 From two to three years 10,266,956 1,692,482 8,574,474 17,350,359 3,630,136 13,720,223 From three to four years 10,226,534 1,309,548 8,916,986 17,316,251 3,115,800 14,200,451 From four to five years 10,118,045 472,760 9,645,285 17,271,708 2,246,896 15,024,812 More than five years 27,488,134 581,244 26,906,890 65,391,395 3,893,963 61,497,432 Total 76,954,394 10,279,128 66,675,266 149,993,694 20,998,476 128,995,218
Summary of Balance of Past Due But Not Impaired Trade Receivables	As of December 31, 2020 2019 Trade accounts receivables due and unpaid, but of which no impairment losses have been recorded ThCh$ ThCh$ Less than three months 52,948,476 43,661,270 Between three and six months 13,513,388 6,462,265 Between six and twelve months 8,311,729 5,162,189 More than twelve months 34,485,893 10,668,714 Total 109,259,486 65,954,438
Summary of movement of impairment loss of trade receivables	Current and Non-current Trade accounts receivables due and unpaid, with impairment losses ThCh$ Balance as of January 1, 2019 49,479,880 Increases (decreases) for the year 10,047,000 Amounts written off (4,067,201) Increases (decreases) in foreign currency translation differences 4,968 Balance at December 31, 2019 55,464,647 Increases (decreases) for the year (*) 15,167,707 Amounts written off (5,709,371) Increases (decreases) in foreign currency translation differences (69,980) Balance at December 31, 2020 64,853,003

Balances and Transactions Wit_2

Balances and Transactions With Related Parties (Tables)	12 Months Ended
	Dec. 31, 2020
BALANCES AND TRANSACTIONS WITH RELATED PARTIES
Summary of Receivables from and Accounts Payable to Related Parties	a) Receivables from related parties Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Taxpayer ID N° Company Country Relationship Currency Description of transaction Term of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent EUR Other services Less than 90 days 31,032 26,979 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent EUR Other services Less than 90 days 266,732 146,061 - - Foreign Enel Green Power Morocco Italy Common Immediate Parent EUR Other services Less than 90 days 252,803 94,340 - - 76.418.940-K GNL Chile S.A. Italy Associated US$ Advance Gas Purchase Less than 90 days 20,067,363 31,025,024 48,358,915 34,407,142 76.418.940-K GNL Chile S.A. Chile Associated US$ Dividends Less than 90 days 616,697 - - - Foreign Endesa Generación Spain Common Immediate Parent EUR Engineering services Less than 90 days 42,794 45,069 - - Foreign Enel Italy SrL. Italy Common Immediate Parent EUR Other services Less than 90 days 534,991 403,854 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Other services Less than 90 days 216,185 120,276 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent US$ Gas sales Less than 90 days - 16,880,527 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Commodity derivatives Less than 90 days 22,048,245 2,962,387 - - Foreign Enel S.p.A. Italy Parent EUR Other services Less than 90 days 533,309 467,393 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent BRL Other services Less than 90 days - 705,954 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent US$ Other services Less than 90 days 866,928 - - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent US$ Engineering services Less than 90 days 198,066 473,527 - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent US$ Other services Less than 90 days 164,018 105,320 - - Foreign Codensa S.A. Colombia Common Immediate Parent COP Computer Services Less than 90 days - 833,336 - - Foreign Codensa S.A. Colombia Common Immediate Parent EUR Computer Services Less than 90 days 322,872 - - - Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 74,930 26,237 - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent CLP Engineering services Less than 90 days 1,064,232 725,163 - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent US$ Engineering services Less than 90 days 162,252 - - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 404,354 455,544 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CLP Computer Services Less than 90 days 410,946 991,564 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CLP Other services Less than 90 days 1,007,511 1,859,205 - - Foreign Enel Green Power Colombia SAS Colombia Common Immediate Parent US$ Engineering services Less than 90 days 1,342,341 - - - Foreign Enel Green Power Colombia SAS Colombia Common Immediate Parent US$ Other services Less than 90 days - 489,301 - - Foreign Enel Generación Piura S.A. Peru Common Immediate Parent US$ Engineering services Less than 90 days 55,897 60,670 - - Foreign Enel Innovation Hubs Srl Italy Common Immediate Parent EUR Computer Services Less than 90 days 25,362 - - - Foreign Chinango S.A.C. Peru Common Immediate Parent US$ Engineering services Less than 90 days 70,925 - - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Engineering services Less than 90 days 170,756 1,131,635 - - Foreign Enel Green Power Spa Italy Common Immediate Parent US$ Engineering services Less than 90 days 395,683 - - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Other services Less than 90 days 2,088 267,422 - - Foreign Enel Green Power Spa Italy Common Immediate Parent US$ Other services Less than 90 days 653,975 1,509,373 - - Foreign Sociedad Portuaria Central Cartagena S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days - 149,525 - - 96.971.330-6 Geotérmica del Norte Chile Common Immediate Parent CH$ Venta de Energía Less than 90 days - - - - Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent US$ Computer Services Less than 90 days 657,232 603,171 - - Foreign Enel Green Power Peru Peru Common Immediate Parent US$ Engineering services Less than 90 days 405,030 302,697 - - Foreign Enel Green Power Peru Peru Common Immediate Parent US$ Other services Less than 90 days 186,734 1,463,242 - - Foreign Energía Nueva Energía Limpia México S.R.L Mexico Common Immediate Parent US$ Other services Less than 90 days 34,843 108,327 - - Foreign Proyectos y Soluciones Renovables S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days 96,267 60,717 - - Foreign Enel Generacion Costanera S.A. Argentina Common Immediate Parent US$ Engineering services Less than 90 days 155,722 34,771 - - Foreign Enel Generacion El Chocón S.A. Peru Common Immediate Parent US$ Engineering services Less than 90 days 11,954 12,589 - - Foreign Enel Green Power Brasil Participacoes LTDA. Brazil Common Immediate Parent US$ Engineering services Less than 90 days 6,714 51,895 - - Foreign Enel Green Power Brasil Participacoes LTDA. Brazil Common Immediate Parent US$ Other services Less than 90 days 200,977 75,984 - - Foreign Enel Power Argentina Argentina Common Immediate Parent US$ Other services Less than 90 days 269,280 284,876 - - Foreign Energetica Monzon S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days - 461,677 Foreign Energetica Monzon S.A.C. Peru Common Immediate Parent US$ Engineering services Less than 90 days 653,567 - - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent US$ Other services Less than 90 days - 385,716 - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent CLP Other services Less than 90 days - 110,699 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent US$ Other services Less than 90 days - 141,708 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent CLP Other services Less than 90 days - 7,381 - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent US$ Other services Less than 90 days 234,834 168,691 - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent US$ Computer Services Less than 90 days 1,080,101 1,136,784 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CLP Other services Less than 90 days 623,843 341,200 - - Foreign Enel X S.R.L. Italy Common Immediate Parent EUR Other services Less than 90 days 29,990 26,954 - - Foreign Enel Produzione Italy Common Immediate Parent EUR Other services Less than 90 days 60,644 13,781 - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Technical services Less than 90 days 753,544 273,003 - - Foreign Enel North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 192,582 - - - Foreign Enel X North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 86,685 92,730 - - Foreign Parque Amistad Ii Sa De Cv Mexico Common Immediate Parent US$ Other services Less than 90 days - 50,264 - - Foreign Parque Amistad Iv Sa De Cv Mexico Common Immediate Parent US$ Other services Less than 90 days - 17,590 - - Foreign Renovables de Guatemala S.A. Guatemala Common Immediate Parent US$ Engineering services Less than 90 days 1,089 - - - Foreign Enel Trading Argentina S.R.L. Argentina Common Immediate Parent EUR Computer Services Less than 90 days 173,263 - - - 77.157.781-4 Enel AMPCI Ts1 Holdings SpA Chile Associated US$ Other services Less than 90 days 8,176 - - - 77.157.783-0 Enel AMPCI Ts1 SpA Chile Associated US$ Other services Less than 90 days 41,591 - - - 77.157.779-2 Enel AMPCI Ebus Chile SpA Chile Associated US$ Other services Less than 90 days 8,176 - - - Total 57,976,125 68,182,133 48,358,915 34,407,142 b) Accounts payable to related parties Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Taxpayer ID N° Company Country Relationship Currency Description of transaction Terms of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent EUR Other services Less than 90 days 159,940 159,940 - - Foreign Enel Trading Argentina S.R.L. Argentina Common Immediate Parent US$ Other services Less than 90 days 94,838 86,189 - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent COP Other services Less than 90 days 4,576 4,723 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CLP Other services Less than 90 days 2,285,642 1,909,747 - - Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 2,185 2,291 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent EUR Other services Less than 90 days 651,662 57,324 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent EUR Technical services Less than 90 days 5,397,360 1,984,129 - - 76.418.940-K GNL Chile S.A. Chile Associated US$ Gas Purchase Less than 90 days 14,650,079 4,980,936 - 2,497,660 Foreign Endesa Generación Spain Common Immediate Parent EUR Engineering services Less than 90 days 190,879 190,879 - - Foreign Endesa Generación Spain Common Immediate Parent EUR Other services Less than 90 days 25,643 25,643 - - Foreign Enel Iberia SRL Spain Common Immediate Parent EUR Other services Less than 90 days 891,821 883,576 - - Foreign E-Distribuzione Spa Italy Common Immediate Parent EUR Other services Less than 90 days - 49,488 - - Foreign Enel Produzione Italy Common Immediate Parent EUR Other services Less than 90 days 1,395,436 3,249,960 - - Foreign Enel Produzione Italy Common Immediate Parent EUR Engineering services Less than 90 days 1,999,721 2,793,150 - - Foreign Enel Energía Italy Common Immediate Parent EUR Other services Less than 90 days 478,207 452,289 - - 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Joint Arrangement CLP Tolls Less than 90 days 13,887 13,887 - - Foreign Enel Green Power Spain SL Spain Common Immediate Parent EUR Other services Less than 90 days 403,225 352,233 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Other services Less than 90 days 558,964 1,099,133 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent US$ Commodity derivatives Less than 90 days 2,405,919 9,295,836 - - Foreign Enel Global Trading S.p.A. Italy Common Immediate Parent EUR Technical services Less than 90 days 5,042,033 2,857,244 - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Technical services Less than 90 days 1,154,817 - - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Computer Services Less than 90 days 11,719,059 - - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Engineering services Less than 90 days 551,776 - - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent EUR Other services Less than 90 days 640,692 - - - Foreign Enel S.p.A. Italy Parent CLP Dividends Less than 90 days - 55,018,871 - - Foreign Enel S.p.A. Italy Parent EUR Technical services Less than 90 days 7,310,421 6,982,284 - - Foreign Enel S.p.A. Italy Parent EUR Computer Services Less than 90 days 263,443 - - - Foreign Enel S.p.A. Italy Parent EUR Engineering services Less than 90 days 1,381,313 - - - Foreign Enel S.p.A. Italy Parent EUR Other services Less than 90 days 2,516,113 2,965,604 - - Foreign Enel Italy SrL Italy Common Immediate Parent EUR Technical services Less than 90 days - 6,438,614 - - Foreign Enel Italy SrL Italy Common Immediate Parent EUR Computer Services Less than 90 days 253,605 - - - Foreign Enel Italy SrL Italy Common Immediate Parent EUR Other services Less than 90 days 676,267 9,115,709 - - Foreign Enel Italy IT Italy Common Immediate Parent EUR Engineering services Less than 90 days 243,460 - - - Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 35,616 17,950 - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Technical services Less than 90 days 4,782,053 3,017,847 - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Computer Services Less than 90 days 2,125,349 - - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Engineering services Less than 90 days 17,720 - - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent EUR Other services Less than 90 days 947,100 681,544 - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Technical services Less than 90 days 21,206,647 19,758,903 - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Engineering services Less than 90 days 17,975,839 12,594,833 - - Foreign Enel Green Power Spa Italy Common Immediate Parent EUR Other services Less than 90 days 9,249,143 10,666,792 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 315,697 248,051 - - Foreign Enel Finance International NV (*) Holland Common Immediate Parent US$ Loan payable Less than 90 days 3,444,366 - Foreign Enel Finance International NV Holland Common Immediate Parent US$ Other services Less than 90 days - 134,278 - - Foreign Enel Green Power Italy Italy Common Immediate Parent CLP Other services Less than 90 days 459,992 - - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CLP Other services Less than 90 days 345,708 344,877 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent EUR Engineering services Less than 90 days 871,748 - - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent US$ Other services Less than 90 days 42,549 107,037 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent US$ Engineering services Less than 90 days 60,957 - - - 76.364.085-K Energía Marina S.P.A Chile Associated CLP Other services Less than 90 days - 2,357 - - Foreign Enel X S.R.L. Italy Common Immediate Parent EUR Other services Less than 90 days 130,664 198,815 - - Foreign Enel X S.R.L. Italy Common Immediate Parent EUR Technical services Less than 90 days 4,225,269 147,488 - - Foreign Cesi S.p.A. Italy Common Immediate Parent EUR Engineering services Less than 90 days 247,773 890,343 - - Foreign Tecnatom SA Italy Common Immediate Parent EUR Engineering services Less than 90 days 73,842 29,093 - - Foreign Enel X Brasil Gerenciamento de Energia Ltda Brazil Common Immediate Parent US$ Other services Less than 90 days 360 - - - Foreign Enel Distribución Sao Paulo Brazil Common Immediate Parent US$ Other services Less than 90 days 132,587 - - - Total 159,809,887 (*) See letter d below.
Summary of Significant Transactions and Effect on Income or Expenses	6 For the years ended December 31, 2020 2019 2018 Taxpayer ID N° Company Country Relationship Description of transaction ThCh$ ThCh$ ThCh$ 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent Provision of administration and other services 5,021,265 4,748,244 5,071,453 76.418.940-K GNL Chile S.A. Chile Associated Gas consumption (164,410,577) (99,801,403) (131,521,989) 96.524.140-K Empresa Eléctrica Panguipulli S.A. Chile Common Immediate Parent Energy Purchases - - (1,954,523) 76.052.206-6 Parque Eolico Valle de los Vientos SpA Chile Common Immediate Parent Energy Purchases - - (3,349,525) Foreign Enel X S.R.L. Italy Common Immediate Parent Technical services (3,435,918) - - Foreign Enel Global Services S.r.l. Italy Common Immediate Parent Engineering services (5,097,105) - - Foreign Enel S.p.A. Italy Parent Technical services (3,800,471) (4,110,257) - 76.412.562-2 Enel Green Power del Sur SPA Chile Common Immediate Parent Energy Purchases - - (30,205,373) 76.179.024-2 Parque Eolico Tal Tal SpA Chile Common Immediate Parent Energy Purchases - - (4,448,833) Foreign Enel Global Trading SpA. Italy Common Immediate Parent Commodity derivatives (37,771,702) (12,118,800) 7,584,772 Foreign Enel Global Trading SpA. Italy Common Immediate Parent Technical services (2,183,183) (1,634,832) (1,213,116) Foreign Enel Global Trading SpA. Italy Common Immediate Parent Gas sales - 58,352,346 34,701,425 Foreign Enel Finance International NV Holland Common Immediate Parent Financial expenses (35,079,947) (31,328,749) (23,253,535) Foreign Enel Italy S.r.l. Italy Common Immediate Parent Computer Services - (2,699,915) (1,481,631) Foreign Enel Italy S.r.l. Italy Common Immediate Parent Technical services - (3,139,990) (2,629,893) Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Technical services (3,172,872) - (1,845,425) Foreign Enel Green Power SpA Italy Common Immediate Parent Engineering services (7,263,535) - - Foreign Enel Green Power SpA Italy Common Immediate Parent Technical services (4,674,437) (3,898,762) (4,257,363) 76.802.924-3 Energía y Servicios South America SpA Chile Common Immediate Parent Computer Services (2,128,624) - -
Summary of Compensation Paid to Members of the Board of Directors	December 31, 2020 Enel Chile Board Board of subsidiaries Directors' Committee Taxpayer ID No. Name Position Period in position ThCh$ ThCh$ ThCh$ 4.975.992-4 Herman Chadwick Piñera Chairman January - December 2020 207,918 — — Foreign Giulio Fazio Director January - December 2020 — — — 4.461.192-9 Fernan Gazmuri Plaza Director January - December 2020 103,959 — 34,653 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2020 103,959 — 34,653 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2020 103,959 — 34,653 Foreign Daniele Caprini Director January - December 2020 — — — Foreign Salvatore Bernabei Director January - December 2020 — — — Total 519,795 — 103,959 December 31, 2019 Enel Chile Board Board of subsidiaries Directors' Committee Taxpayer ID No. Name Position Period in position ThCh$ ThCh$ ThCh$ 4.975.992-4 Herman Chadwick Piñera Chairman January - December 2019 206,350 — — Foreign Giulio Fazio Director January - December 2019 — — — 4.461.192-9 Fernan Gazmuri Plaza Director January - December 2019 103,175 — 33,648 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2019 103,175 — 33,648 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2019 103,175 — 33,648 Foreign Daniele Caprini Director January - December 2019 — — — Foreign Salvatore Bernabei Director January - December 2019 — — — Total 515,875 — 100,944 December 31, 2018 Enel Chile Board Board of subsidiaries Directors' Committee Taxpayer ID No. Name Position Period in position ThCh$ ThCh$ ThCh$ 4.975.992-4 Hermán Chadwick Piñera Chairman January - December 2018 181,789 — — Foreigner Giulio Fazio Director January - December 2018 — — — 4.461.192-9 Fernán Gazmuri Plaza Director January - December 2018 90,894 — 31,018 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2018 90,894 — 31,018 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2018 90,894 — 31,018 Foreigner Vicenzo Ranieri Director April - December 2018 — — — Foreigner Salvatore Bernabei Director January - December 2018 — — — Total 454,471 — 93,054
Disclosure Of Compensation Of Key Management Personnel Explanatory	Key Management Personnel Taxpayer ID No. Name Position Foreign Paolo Palloti Chief Executive Officer Foreign Giuseppe Turchiarelli (1) Administration, Finance and Control Officer 13.903.626-3 Liliana Schnaidt Hagedorn Human Resources and Organization Manager 6.973.465-0 Domingo Valdés Prieto General Counsel and Secretary to the Board Foreign Eugenio Belinchon Gueto (2) Internal Audit Manager (1) (2)
Summary of Compensation Received by Key Management Personnel	December 31, 2020 December 31, 2019 December 31, 2018 ThCh$ ThCh$ ThCh$ Remuneration 2,133,063 2,357,252 2,959,019 Short-term benefits for employees 272,714 207,391 497,424 Other long-term benefits - IAS 146,404 2,088 322,865 Total 2,552,181 2,566,731 3,779,308

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2020
INVENTORIES.
Summary of Classes of Inventories	As of December 31, 2020 2019 Classes of Inventories ThCh$ ThCh$ Supplies for Production 5,207,472 18,352,465 Gas 2,280,335 2,287,934 Oil 2,927,137 3,888,712 Coal — 12,175,819 Supplies for projects and spare parts 13,468,592 18,073,825 Electrical materials 4,633,965 3,245,960 Total 23,310,029 39,672,250

Current Tax Assets and Liabil_2

Current Tax Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
CURRENT TAX ASSETS AND LIABILITIES
Summary of Current Tax Assets and Liabilities	a) The detail of current tax receivables as of December 31, 2020 and 2019, is as follows: As of December 31, 2020 2019 Tax Receivables ThCh$ ThCh$ Monthly provisional tax payments 34,534,731 38,536,220 Tax credit for absorbed profits — 86,068,128 Tax credit for training expenses 503,682 2,668,941 Total 35,038,413 127,273,289 b) The detail of current tax payables as of December 31, 2020 and 2019, is as follows: As of December 31, 2020 2019 Current tax liabilities ThCh$ ThCh$ Income tax 72,359,944 17,995,833 Total 72,359,944 17,995,833

Investments Accounted for Usi_2

Investments Accounted for Using the Equity Method (Tables)	12 Months Ended
	Dec. 31, 2020
INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD.
Summary of Changes in Investments in Associates and Joint Ventures Accounted For Using the Equity Method	a. The detail of the Group's investees accounted for using the equity method and the movements for the years ended December 31, 2020 and 2019, are as follows: Share of Foreign Other Other Balance as Balance as Balance as of Profit Dividends Currency Comprehensive Increase of Negative of Taxpayer ID Ownership 1-1-2020 Additions (Loss) Declared Translation Income (Decrease) 12-31-2020 Equity 12-31-2020 Number Associates and Joint Ventures Relationship Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Provision ThCh$ 76.418.940-K GNL Chile S.A. Associate Chile U.S. dollar 1,410,206 — 1,127,312 (686,058) (122,077) — — 1,729,383 — 1,729,383 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Joint Venture Chile Chilean peso 6,099,228 — 1,351,965 — — — — 7,451,193 — 7,451,193 76.014.570-K Enel Argentina S.A. Associate Argentina Angentine peso 401,908 — 15,333 — (130,962) — 84,284 370,563 — 370,563 76.364.085-K Energía Marina SpA. Associate Chile Chilean peso 17,246 — (70,360) — — — — (53,114) 53,114 — 77.157.779-2 Enel AMPCI Ebus Chile SpA Associate Chile U.S. dollar — 2,727,091 1,085,142 — (389,551) 18,982 — 3,441,664 — 3,441,664 TOTAL 7,928,588 2,727,091 3,509,392 (686,058) (642,590) 18,982 84,284 12,939,689 53,114 12,992,803 Share of Foreign Other Other Balance as Negative Balance as Balance as of Profit Dividends Currency Comprehensive Increase of Equity of Taxpayer ID Ownership 1-1-2019 Additions (Loss) Declared Translation Income (Decrease) 12-31-2019 Provision 12-31-2019 Number Associates and Joint Ventures Relationship Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ 76.418.940-K GNL Chile S.A. Associate Chile U.S. dollar 3,052,983 — (254,132) (1,518,880) 130,235 — — 1,410,206 — 1,410,206 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Joint Ventures Chile Chilean peso 9,473,711 — 695,437 (4,069,920) — — — 6,099,228 — 6,099,228 76.014.570-K Enel Argentina S.A. Associate Argentina Argentine peso 300,198 — 104,335 — (95,726) — 93,101 401,908 — 401,908 76.364.085-K Energías Marina SpA Associate Chile Chilean peso 46,639 131,647 (179,551) — 18,511 17,246 — 17,246 TOTAL 12,873,531 131,647 366,089 (5,588,800) 34,509 — 111,612 7,928,588 — 7,928,588 (*)
Summary of Financial Information from Financial Statements of Investments in Associates	As of December 31, 2020 % Ownership Current Assets Non-current Current Liabilities Non-current Revenues Expenses Profit (Loss) Other Comprehensive Investments with Significant Influence Indirect ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GNL Chile S.A 57,032,080 1,433,019,578 117,974,825 1,366,888,682 553,288,674 (549,906,739) 3,381,935 (366,207) 3,015,728 Enel AMPCI E bus Chile SpA 20,007,409 93,871,600 15,101,345 81,569,344 7,503,692 (2,077,983) 5,425,709 — 5,425,709 As of December 31, 2019 % Ownership Current Assets Non-current Current Liabilities Non-current Revenues Expenses Profit (Loss) Other Comprehensive Investments with Significant Influence Indirect ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GNL Chile S.A 67,419,256 1,615,973,312 161,197,047 1,517,964,903 582,441,735 (583,204,131) (762,396) 389,843 (372,553)
Summary of Financial Information from Financial Statements of Joint Ventures	Information as of December 31, 2020 and 2019 of the statements of financial position and statements of income of the joint venture related to Transmisora Eléctrica de Quillota Ltda., is as follows: Transmisora Eléctrica de Quillota Ltda. 50.0% 50.0% 12-31-2020 12-31-2019 ThCh$ ThCh$ Total current assets 7,157,805 3,346,667 Total non-current assets 10,068,936 10,834,220 Total current liabilities 806,841 365,640 Total non-current liabilities 1,517,515 1,616,791 Cash and cash equivalents 4,261,166 2,403,904 Revenues 4,643,283 3,191,566 Other fixed operating expenses (268,806) (768,866) Depreciation and amortization expense (782,799) (782,800) Other Income 4,187 6,087 Interest income 29,103 152,370 Income tax expense (921,039) (407,478) Profit (loss) 2,703,929 1,390,879 Comprehensive income 2,703,929 1,390,879

Intangible Assets Other than _2

Intangible Assets Other than Goodwill (Tables)	12 Months Ended
	Dec. 31, 2020
INTANGIBLE ASSETS OTHER THAN GOODWILL.
Summary of Intangible Assets	The balances of this caption as of December 31, 2020 and 2019 are presented below: As of December 31, 2020 2019 Intangible Assets, Gross ThCh$ ThCh$ Intangible Assets, Gross 275,527,801 229,944,365 Easements and water rights 20,551,471 22,553,618 Concessions 53,053,457 34,718,676 Patents, Registered Trademarks and Other Rights 679,227 771,002 Computer software 186,855,438 156,836,017 Other identifiable intangible assets 14,388,208 15,065,052 As of December 31, 2020 2019 Intangible Assets, Amortization and Impairment ThCh$ ThCh$ Accumulated Amortization and Impairment, Total (110,413,280) (97,665,772) Easements and water rights (5,519,394) (5,200,726) Concessions (9,469,344) (8,562,257) Patents, Registered Trademarks and Other Rights (478,232) (454,032) Computer software (92,187,254) (80,673,217) Other identifiable intangible assets (2,759,056) (2,775,540) As of December 31, 2020 2019 Intangible Assets, Net ThCh$ ThCh$ Intangible Assets, Net 165,114,521 132,278,593 Easements and water rights 15,032,077 17,352,892 Concessions 43,584,113 26,156,419 Patents, Registered Trademarks and Other Rights 200,995 316,970 Computer software 94,668,184 76,162,800 Other identifiable intangible assets 11,629,152 12,289,512
Summary of Reconciliations of the Carrying Amounts of Intangible Assets	The following table presents intangible assets other than Goodwill as of December 31, 2020 and 2019: Easements and water rights Concessions Patents, Registered Trademarks and Other Rights Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2020 17,352,892 26,156,419 316,970 76,162,800 12,289,512 132,278,593 Changes in identifiable intangible assets Increases other than from business combinations — 23,221,080 — 32,122,529 — 55,343,609 Increase (decrease) from foreign currency translation differences (239,991) (3,566,641) — (273,172) (661,569) (4,741,373) Amortization (1) (556,017) (2,009,087) (24,200) (11,785,777) — (14,375,081) Impairment loss recognized in profit or loss (2) — (217,658) — — — (217,658) Increases (decreases) from transfers and other changes 91,775 — (91,775) (1,067) 1,067 — Increases (decreases) from transfers 91,775 — (91,775) (1,067) 1,067 — Disposals and removal from service (1,616,582) — — — — (1,616,582) Removals from service (1,616,582) — — — — (1,616,582) Argentina Hyperinflation Effect — — — — 142 142 Other increases (decreases) — — — (1,557,129) — (1,557,129) Total changes in identifiable intangible assets (2,320,815) 17,427,694 (115,975) 18,505,384 (660,360) 32,835,928 Closing balance as of December 31, 2020 15,032,077 43,584,113 200,995 94,668,184 11,629,152 165,114,521 Easements and water rights Concessions Patents, Registered Trademarks and Other Rights Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2019 17,736,954 25,953,878 7,394 60,067,635 11,606,532 115,372,393 Changes in identifiable intangible assets Increases other than from business combinations — — — 25,208,199 — 25,208,199 Increase (decrease) from foreign currency translation differences 425,373 2,028,583 — 156,906 926,375 3,537,237 Amortization (1) (809,435) (1,826,042) (24,200) (9,241,732) (1,598) (11,903,007) Increases (decreases) from transfers and other changes — — 333,776 (91,776) (242,000) — Increases (decreases) from transfers — — 333,776 (91,776) (242,000) — Argentina Hyperinflation Effect — — — — 203 203 Increase (decrease) — — — 63,568 — 63,568 Total changes in identifiable intangible assets (384,062) 202,541 309,576 16,095,165 682,980 16,906,200 Closing balance as of December 31, 2019 17,352,892 26,156,419 316,970 76,162,800 12,289,512 132,278,593 (1) See Note 31 a). See Note 31 b).

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2020
GOODWILL.
Summary of Goodwill by the Cash-Generating Unit or Group of Cash-Generating Units	Opening Balance Transfer Merger by Absorption Foreign Currency Translation Closing Balance Foreign Currency Translation Closing Balance 12-31-2020 Company Cash Generating Unit ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Enel Colina S.A. Enel Colina S.A. 2,240,478 — — 2,240,478 — 2,240,478 Enel Distribución Chile S.A. Enel Distribución Chile 128,374,362 — — 128,374,362 — 128,374,362 Enel Generación Chile S.A. Generación Chile 731,782,459 24,860,356 — 756,642,815 — 756,642,815 GasAtacama Chile S.A. Generación Chile 24,860,356 (24,860,356) — — — — Almeyda Solar SpA Enel Green Power Chile S.A. 20,146,823 — 1,673,580 21,820,403 (1,194,585) 20,625,818 Geotérmica del Norte Enel Green Power Chile S.A. 75,646 — 6,284 81,930 (4,485) 77,445 Parque Eólico Talinay Oriente Enel Green Power Chile S.A. 7,564,601 — 628,385 8,192,986 (448,535) 7,744,451 Total 915,044,725 — 2,308,249 917,352,974 (1,647,605) 915,705,369

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
PROPERTY, PLANT AND EQUIPMENT
Summary of Property Plant and Equipment	The following table sets forth the property, plant and equipment as of December 31, 2020 and 2019: As of December 31, 2020 2019 Classes of Property, Plant and Equipment, Gross ThCh$ ThCh$ Property, Plant and Equipment, Gross 9,768,708,590 9,225,653,590 Construction in progress 1,567,685,720 1,048,988,931 Land 78,366,909 77,754,923 Buildings 562,807,945 531,250,194 Generation Plant and Equipment 5,992,384,131 6,002,160,751 Network infrastructure 1,378,810,834 1,396,996,724 Fixtures and fittings 171,396,847 150,242,089 Other property, plant and equipment 17,256,204 18,259,978 As of December 31, 2020 2019 Classes of Accumulated Depreciation and Impairment in Property, Plant and Equipment ThCh$ ThCh$ Total Accumulated Depreciation and Impairment in Property, Plant and Equipment (4,735,212,118) (3,921,177,476) Buildings (144,646,529) (110,930,435) Plant and equipment (3,871,912,436) (3,106,167,890) Network infrastructure (584,630,846) (587,567,750) Fixtures and fittings (117,944,385) (102,483,181) Other property, plant and equipment (16,077,922) (14,028,220) As of December 31, 2020 2019 Classes of Property, Plant and Equipment, Net ThCh$ ThCh$ Property, Plant and Equipment, Net 5,033,496,472 5,304,476,114 Construction in progress 1,567,685,720 1,048,988,931 Land 78,366,909 77,754,923 Buildings 418,161,416 420,319,759 Generation Plant and Equipment 2,120,471,695 2,895,992,861 Network infrastructure 794,179,988 809,428,974 Fixtures and fittings 53,452,462 47,758,908 Other property, plant and equipment 1,178,282 4,231,758
Summary of Changes in Property Plant and Equipment	The composition and movements of the property, plant and equipment accounts during the fiscal year ended December 31, 2020 and 2019 are as follows: Construction Land Buildings, Net Generation Network Fixtures and Other property, plant and equipment, Net Property, Plant and Changes in 2020 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2020 1,048,988,931 77,754,923 420,319,759 2,895,992,861 809,428,974 47,758,908 4,231,758 5,304,476,114 Increases other than from business combinations 744,544,601 - 151,195 691,268 101,862 119,324 - 745,608,250 Increases (decreases) from foreign currency translation differences (57,958,736) 28,352 (19,184,500) (54,569,811) (3,320,508) 2,286,520 87,719 (132,630,964) Depreciation (1) — — (20,527,447) (144,943,455) (36,650,102) (6,265,815) (3,141,195) (211,528,014) Impairment losses recognized in profit or loss for the period (2) (45,596,397) — — (652,638,983) — — — (698,235,380) Increases (decreases) from transfers and other changes (57,868,918) 59,304 11,483,868 41,125,722 — 5,200,024 - - Increases (decreases) from transfers from construction in progress (57,868,918) 59,304 11,483,868 41,125,722 — 5,200,024 - - Disposals and removals from service (1,425,412) - — (1,942,587) (8,509,816) — - (11,877,815) Disposals — — — (1,942,587) (6,899,719) — - (8,842,306) Removals (1,425,412) — — — (1,610,097) — - (3,035,509) Other increases (decreases) (3) (63,014,492) 489,124 25,862,428 36,315,417 33,129,578 4,137,244 - 36,919,299 Argentine hyperinflationary economy 16,143 35,206 56,113 441,263 — 216,257 - 764,982 Total changes 518,696,789 611,986 (2,158,343) (775,521,166) (15,248,986) 5,693,554 (3,053,476) (270,979,642) Closing balance as of December 31, 2020 1,567,685,720 78,366,909 418,161,416 2,120,471,695 794,179,988 53,452,462 1,178,282 5,033,496,472 Construction Land Buildings, Net Generation Network Fixtures and Other property, plant and equipment, Net Property, Plant and Changes in 2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2019 862,274,093 74,753,283 384,027,047 3,143,869,929 764,095,247 55,091,617 6,881,745 5,290,992,961 Increases other than from business combinations 320,298,423 - - - - - - 320,298,423 Increases (decreases) from foreign currency translation differences 9,880,815 36,282 29,731,649 81,221,513 4,238,408 65,341 361,574 125,535,582 Depreciation (1) — — (17,944,173) (159,163,293) (34,964,877) (6,299,395) (3,011,561) (221,383,299) Impairment losses recognized in profit or loss for the period (2) (32,967,462) — — (247,052,801) — — — (280,020,263) Increases (decreases) from transfers and other changes (121,288,336) 4,151,834 22,879,420 17,534,668 74,941,622 1,780,792 - — Increases (decreases) from transfers from construction in progress (121,288,336) 4,151,834 22,879,420 17,534,668 74,941,622 1,780,792 - — Disposals and removals from service — (406,656) (792,638) (948,350) (1,880,608) (837,345) - (4,865,597) Disposals — (406,656) — (948,350) — — - (1,355,006) Removals — — (792,638) — (1,880,608) (837,345) - (3,510,591) Other increases (decreases) (3) 10,843,933 (779,820) 2,418,454 59,398,742 2,999,182 (2,042,102) - 72,838,389 Argentine hyperinflationary economy (52,535) - — 1,132,453 — — - 1,079,918 Total changes 186,714,838 3,001,640 36,292,712 (247,877,068) 45,333,727 (7,332,709) (2,649,987) 13,483,153 Closing balance as of December 31, 2019 1,048,988,931 77,754,923 420,319,759 2,895,992,861 809,428,974 47,758,908 4,231,758 5,304,476,114 (1) See Note 31. (2) See clause iv) in section c) other information, contained in this same Note. (3) See Note 25.

Investment Property (Tables)

Investment Property (Tables)	12 Months Ended
	Dec. 31, 2020
INVESTMENT PROPERTY.
Summary of Changes in Investment Property	Investment Accumulated Investment Investment Property, Net, Cost Model ThCh$ ThCh$ ThCh$ Balance at January 1, 2019 9,189,377 (1,632,021) 7,557,356 Depreciation expense — (19,812) (19,812) Impairment loss recognized in the income statement — (742,389) (742,389) Balance at December 31, 2019 9,189,377 (2,394,222) 6,795,155 Depreciation expense — (19,812) (19,812) Reversals of impairment recognized in the income statement — 646,597 646,597 Balance at December 31, 2020 9,189,377 (1,767,437) 7,421,940
Schedule of fair value hierarchy of investment properties	Fair value measured as of December 31, 2020 Level 1 Level 2 Level 3 ThCh$ ThCh$ ThCh$ Investment properties — — 8,484,901 See Note 3.h.
Summary of Income and Expenses from Investment Properties	2020 2019 2018 Income and expense from investment properties ThCh$ ThCh$ ThCh$ Income derived from rental income from investment properties 196,955 202,896 204,166 Direct operating expenses from investment properties that generate rental income (36,761) (44,136) (56,327) Total 160,194 158,760 147,839

Right-of-use assets (Tables)

Right-of-use assets (Tables)	12 Months Ended
	Dec. 31, 2020
RIGHT-OF-USE-ASSETS
Summary of changes in right of use assets	Land Other Plants and Equipments Right-of-use assets, Net Changes in 2020 ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2020 34,081,799 21,761,711 55,843,510 New assets contracts, by right-of use 213,445 2,491,480 2,704,925 Increases (decreases) from foreign currency translation differences, net 830,349 157,520 987,869 Depreciation (1,894,646) (2,139,466) (4,034,112) New agreements (decreases) 356,444 (356,444) - Other increases (decreases) (707,853) (2,338,390) (341,318) Closing balance as of December 31, 2020 33,373,946 19,423,321 55,502,192 Land Other Plants and Equipments Right-of-use assets, Net Changes in 2019 ThCh$ ThCh$ ThCh$ Opening balance as of January 1, 2019 before application of IFRS 16 2,758 17,651,914 17,654,672 Effects first time adoption IFRS 16 23,097,767 5,716,375 28,814,142 Opening balance as of January 1, 2019 after application of IFRS 16 23,100,525 23,368,289 46,468,814 Increases (decreases) from foreign currency translation differences, net 1,537,867 - 1,537,867 Depreciation (1,482,706) (1,838,562) (3,321,268) New agreements (decreases) 10,926,113 231,984 11,158,097 Total changes 10,981,274 -1,606,578 9,374,696 Closing balance as of December 31, 2019 34,081,799 21,761,711 55,843,510
Schedule of future payments derived from those contracts	As of December 31, 2020 2019 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 8,783,640 1,775,929 7,007,711 7,602,720 1,760,705 5,842,015 From one to two years 6,583,269 1,546,496 5,036,773 6,234,867 1,719,045 4,515,822 From two to three years 8,399,111 1,332,024 7,067,087 6,049,847 1,484,321 4,565,526 From three to four years 3,271,835 1,245,169 2,026,666 8,326,858 1,265,224 7,061,634 From four to five years 3,077,572 1,174,438 1,903,134 2,964,375 1,180,435 1,783,940 More than five years 37,595,016 8,770,869 28,824,147 38,630,310 8,991,558 29,638,752 Total 67,710,443 15,844,925 51,865,518 69,808,977 16,401,288 53,407,689
Schedule of Total Future Lease Payments	As of December 31, As of December 31, 2020 2019 ThCh$ ThCh$ Less than one year 4,813,265 3,485,151 From one to two years — — From two to three years — — From three to four years — — From four to five years — — More than five years — — Total 4,813,265 3,485,151

Income Tax and Deferred Taxes (

Income Tax and Deferred Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
INCOME TAX AND DEFERRED TAXES
Components of Income Tax Expense Benefit	The components of income tax for the years 2020, 2019 and 2018 are detailed as follows: 2020 2019 2018 Current Income Tax and Adjustments to Current Income Tax for Previous Periods ThCh$ ThCh$ ThCh$ Current income tax (155,196,656) (54,904,679) (47,354,780) Adjustments to current tax from the previous period 3,694,656 (2,251,167) (6,304,285) Current tax (expenses) / benefit (related to cash flow hedges) 72,354,119 (36,172,878) (60,650,786) Other current tax benefit / (expense) (98,646) (1,197,052) (856,466) Current tax expense, net (79,246,527) (94,525,776) (115,166,317) Benefit / (expense) from deferred taxes for origination and reversal of temporary differences 160,551,634 33,297,872 (43,134,500) Adjustments to deferred taxes from the previous period — — 4,818,298 Total deferred tax benefit / (expense) 160,551,634 33,297,872 (38,316,202) Income tax expense 81,305,107 (61,227,904) (153,482,519)
Summary of Reconciliation of Tax Expense	The following table shows the reconciliation of the tax rate as of December 31, 2020, 2019 and 2018: 2020 2019 2018 Reconciliation of Tax Expense Tax Rate ThCh$ Tax Rate ThCh$ Tax Rate ThCh$ ACCOUNTING INCOME BEFORE TAX (133,691,942) 377,321,122 566,330,276 Total tax income (expense) using statutory rate 36,096,825 (27.00)% (101,876,703) (27.00)% (152,909,175) Tax effect of rates applied in other countries — — 232,897 — — Tax effect of tax-exempt revenue and other positive effects impacting the effective rate 42,557,794 42,638,986 1,746,052 Tax effect of non-deductible expenses for determining taxable profit (loss) (7.32)% (9,790,603) (2.76)% (10,399,776) (2.26)% (12,786,965) Tax effect of adjustments to income taxes in previous periods 3,694,656 (0.60)% (2,251,167) (1.11)% (6,304,285) Adjustments for prior periods deferred taxes - — — 4,818,298 Price level restatement for tax purposes (investments and equity) 8,746,435 10,427,859 11,953,556 Total adjustments to tax expense using statutory rate 45,208,282 40,648,799 (0.10)% (573,344) Income tax benefit (expense) 81,305,107 (16.23)% (61,227,904) (27.10)% (153,482,519)
Summary of Origination and Changes in Deferred Tax Assets and Liabilities	The origin of and changes in deferred tax assets and liabilities as of December 31, 2020 and 2019 are as follows: 12-31-2020 12-31-2019 Assets Liabilities Assets Liabilities Deferred Taxes Assets/(Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ Depreciations 55,197,762 (249,821,145) 10,652,313 (404,453,928) Obligations for post-employment benefits 9,581,174 (5,997) 7,772,646 (34,413) Revaluations of financial instruments — — 456,888 — Tax loss 46,518,690 — 81,154,636 — Provisions 91,579,562 — 87,275,541 — Dismantling Provision 51,513,634 — 44,485,711 — Provision for Civil Contingencies 3,991,087 — 3,502,161 — Provision Contingencies Workers — — 492,522 — Provision for doubtful trade accounts 12,544,171 — 14,555,712 — Provision of Human Resources accounts 8,605,410 — 7,859,341 — Other Provisions 14,925,260 — 16,380,094 — Other Deferred Taxes 24,942,402 (38,036,065) 20,980,774 (31,240,859) Activation of expenses for issuance of financial debt — (10,691,535) — (11,412,737) Monetary Correction - Argentina — (1,015,095) — (657,871) Other Deferred Taxes 24,942,402 (26,329,435) 20,980,774 (19,170,251) Deferred taxes Assets/(Liabilities) before compensation 227,819,590 (287,863,207) 208,292,798 (435,729,200) Compensation deferred taxes Assets/Liabilities (119,805,645) 119,805,645 (186,444,559) 186,444,559 Deferred taxes Assets/(Liabilities) after compensation 108,013,945 (168,057,562) 21,848,239 (249,284,641) Changes Recognized in others in comprehensive income Net balance as of January 1, 2020 Recognized in profit or loss Recognized in others in comprehensive income Foreign currency translation difference Other increases Net balance as of December 31, 2020 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Depreciations (1) (393,801,615) 191,919,566 — 7,258,666 — (194,623,383) Obligations for post-employment benefits 7,738,233 (464,804) 2,308,510 (6,762) — 9,575,177 Revaluations of financial instruments 456,888 (93,879) (387,000) 23,991 — — Tax loss 81,154,636 (33,611,187) — (1,024,759) — 46,518,690 Provisions 87,275,541 5,091,987 — (787,966) — 91,579,562 Dismantling Provision 44,485,711 7,238,957 — (211,034) — 51,513,634 Provision for Civil Contingencies 3,502,161 464,407 — 24,519 — 3,991,087 Provision Contingencies Workers 492,522 (517,792) — 25,270 — — Provision for doubtful trade accounts 14,555,712 (1,995,773) — (15,768) — 12,544,171 Provision of Human Resources accounts 7,859,341 801,863 — (55,794) — 8,605,410 Other Provisions 16,380,094 (899,675) — (555,159) — 14,925,260 Other Deferred Taxes (10,260,085) (2,290,049) 2,464 2,512 (548,505) (13,093,663) Capitalization of expenses for issuance of financial debt (11,412,738) 721,203 — — (10,691,535) Monetary Correction - Argentina (657,871) 191,281 — (548,505) (1,015,095) Other Deferred Taxes 1,810,524 (3,202,533) 2,464 2,512 — (1,387,033) Deferred taxes Assets/(Liabilities) (227,436,402) 160,551,634 1,923,974 5,465,682 (548,505) (60,043,617) Changes Recognized in others in comprehensive income Net balance as of January 1, 2019 Recognized in profit or loss Recognized in others in comprehensive income Foreign currency translation difference Other Net balance as of December 31, 2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Depreciations (1) (349,976,401) (5,668,543) — (1,561,204) (36,595,467) (393,801,615) Obligations for post-employment benefits 5,709,648 126,352 2,099,845 — (197,612) 7,738,233 Revaluations of financial instruments — — 710,523 — (253,635) 456,888 Tax loss 36,921,157 14,343,314 — 2,096,339 27,793,826 81,154,636 Provisions 55,080,385 24,123,136 — 795,123 7,276,897 87,275,541 Dismantling Provision 23,627,264 20,711,621 — 34,574 112,252 44,485,711 Provision for Civil Contingencies 4,108,710 (606,549) — — — 3,502,161 Provision Contingencies Workers 430,900 61,622 — — — 492,522 Provision for doubtful trade accounts 13,253,612 1,302,403 — 128 (431) 14,555,712 Provision of Human Resources accounts 7,432,939 3,233,471 — (13,109) (2,793,960) 7,859,341 Other Provisions 6,226,960 (579,432) — 773,530 9,959,036 16,380,094 Other Deferred Taxes (6,643,613) 373,614 992 — (3,991,078) (10,260,085) Capitalization of expenses for issuance of financial debt (11,202,063) (407,318) — — 196,643 (11,412,738) Monetary Correction - Argentina (425,687) (207,916) — — (24,268) (657,871) Other Deferred Taxes 4,984,137 988,848 992 — (4,163,453) 1,810,524 Deferred taxes Assets/(Liabilities) (258,908,824) 33,297,873 2,811,360 1,330,258 (5,967,069) (227,436,402)
Effects of Deferred Tax on Components of Other Comprehensive Income	The effects of deferred taxes on the components of other comprehensive income attributable to both controlling and non-controlling interests for the years ended 2020, 2019 and 2018, are as follows: 2020 2019 2018 Effects of Income Tax on the Components of Amount Before Income Tax Amount After Amount Before Income Tax Amount After Amount Before Income Tax Amount After Other Comprehensive Income ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Financial assets at fair value with changes in other comprehensive income (9,125) 2,464 (6,661) (3,673) 992 (2,681) (411) 111 (300) Cash flow hedge 267,540,328 (72,741,119) 194,799,209 (139,174,121) 36,883,401 (102,290,720) (221,906,855) 60,650,786 (161,256,069) Share of other comprehensive income from associates and joint ventures accounted for using the equity method 18,982 — 18,982 — — — — Foreign currency translation (69,218,245) — (69,218,245) 73,114,966 — 73,114,966 107,492,316 — 107,492,316 Actuarial gains(losses) on defined-benefit pension plans (8,545,834) 2,308,510 (6,237,324) (7,777,204) 2,099,845 (5,677,359) 37,881 (10,228) 27,653 Income tax related to components of other 189,786,106 (70,430,145) 119,355,961 (73,840,032) 38,984,238 (34,855,794) (114,377,069) 60,640,669 (53,736,400)
Movements in Deferred Taxes for Components of Other Comprehensive Income	The following table shows the reconciliation of deferred tax movements between balance sheet and income taxes in other comprehensive income as of December 31, 2020, 2019 and 2018: For the years ended December 31, 2020 2019 2018 Deferred taxes of components of other comprehensive income ThCh$ ThCh$ ThCh$ Total increases (decreases) for deferred taxes of other comprehensive income from continuing operations 1,923,974 2,811,360 (10,117) Income tax of changes in cash flow hedge transactions (72,354,119) 36,172,878 60,650,786 Total income tax relating to components of other comprehensive income (70,430,145) 38,984,238 60,640,669

Other Financial Liabilities (Ta

Other Financial Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
OTHER FINANCIAL LIABILITIES
Schedule of Balances of Other Financial Liabilities	12-31-2020 21-31-2019 Current Non-current Current Non-current Other financial liabilities ThCh$ ThCh$ ThCh$ ThCh$ Interest –bearing borrowings 152,076,992 1,467,421,655 158,562,319 1,667,271,871 Hedging derivatives (*) 5,398,864 16,167,471 48,225,766 25,208,326 Non-hedging derivatives (**) 23,285 — 2,026,476 124,048 Total 157,499,141 1,483,589,126 208,814,561 1,692,604,245 (*) See Note 23.2.a (**)See Note 23.2.b
Schedule of Interest-bearing Borrowings	The detail of current and non-current interest-bearing borrowings as of December 31, 2020 and 2019 is as follows: 12-31-2020 12-31-2019 Current Non-current Current Non-current Classes of Interest-bearing borrowings ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing borrowings 152,076,992 1,467,421,655 158,562,319 1,667,271,871 Secured bank loans 106,783,562 21,315,003 113,247,263 135,297,019 Unsecured bank loans 4 — 5 — Unsecured obligations with the public 45,293,426 1,446,106,652 45,315,051 1,531,974,852 Total 152,076,992 1,467,421,655 158,562,319 1,667,271,871
Summary of Bank Loans by Currency and Maturity	Maturity Maturity Country Currency Effective Interest Nominal Secured / One to three Three to twelve Total Current One to two Two to three Total Non- Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 1.77% 1.77% Secured - 106,783,562 106,783,562 21,315,003 - 21,315,003 Chile CLP 6.00% 6.00% Unsecured 4 - 4 - - - Total 4 106,783,562 106,783,566 21,315,003 - 21,315,003 Maturity Maturity Country Currency Effective Nominal Secured / Unsecured One to three Three to twelve Total Current One to two years Two to three Total Non- Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 3.31% 3.31% Sí 134,532 113,112,731 113,247,263 112,747,516 22,549,503 135,297,019 Chile CLP 6.00% 6.00% No 5 - 5 - - - Total 134,537 113,112,731 113,247,268 112,747,516 22,549,503 135,297,019
Summary of Identification of Bank Borrowings by Company	12-31-2020 Current Non-current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Type of Amortization Secured Less than More Total One to Two to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 1 — 1 — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 3 — 3 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile 97.018.000-1 Scotiabank Chile Chile US$ 2.10% 2.10% Upon expiration Yes — — 0 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile Foreign Inter-American Development Bank ( BID ) E.E.U.U. US$ 1.50% 1.50% Upon expiration Yes — 39,966 39,966 21,315,003 — — 76.321.458-3 Almeyda Solar SPA Chile 91.018.000-1 Scotiabank Chile Chile US$ 2.03% 2.03% Upon expiration Yes — 106,743,596 106,743,596 — — — Total 4 106,783,562 106,783,566 21,315,003 — 21,315,003 12-31-2019 Current Non-current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Type of Amortization Secured Less than More Total One to Two to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 1 — 1 — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile CLP 6.00% 6.00% Upon expiration No 4 — 4 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile 97.018.000-1 Scotiabank Chile Chile US$ 2.10% 2.10% Upon expiration Yes 134,532 112,747,516 112,882,048 — — — 76.412.562-2 Enel Green Power Chile S.A. Chile Foreign Inter-American Development Bank ( BID ) E.E.U.U. US$ 1.50% 1.50% Upon expiration Yes — 43,220 43,220 — 22,549,503 22,549,503 76.321.458-3 Almeyda Solar SPA Chile 91.018.000-1 Scotiabank Chile Chile US$ 2.03% 2.03% Upon expiration Yes — 321,995 321,995 112,747,516 — 112,747,516 Total 134,537 113,112,731 113,247,268 112,747,516 22,549,503 135,297,019
Summary of Unsecured Liabilities by Currency and Maturity	The detail of Unsecured Liabilities by currency and maturity as of December 31, 2020 and 2019, is as follows: Summary of Unsecured liabilities by currency and maturity Non-Current Maturity Maturity Effective Interest Nominal Interest Secured Less than 90 days Three to Twelve months Total Current One to two years Two to three Three to four Four to five years More than five Total Non- Country Currency Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.71% 6.49% No 9,140,614 2,551,520 11,692,134 — — 282,085,533 — 914,327,429 1,196,412,962 Chile UF 6.00% 5.48% No — 33,601,292 33,601,292 32,474,175 32,474,175 32,474,175 32,474,175 119,796,990 249,693,690 Total 9,140,614 36,152,812 45,293,426 32,474,175 32,474,175 314,559,708 32,474,175 1,034,124,419 1,446,106,652 Non-Current Maturity Maturity Effective Interest Nominal Interest Secured Less than 90 days Three to Twelve months Total Current One to two years Two to three Three to four Four to five years More than five Total Non- Country Currency Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.59% 6.49% No 7,700,030 4,755,019 12,455,049 — — — 296,420,703 961,519,091 1,257,939,794 Chile U.F. 6.00% 5.48% No — 32,860,002 32,860,002 31,624,776 31,624,776 31,624,776 31,624,776 147,535,954 274,035,058 Total 7,700,030 37,615,021 45,315,051 31,624,776 31,624,776 31,624,776 328,045,479 1,109,055,045 1,531,974,852
Summary of Unsecured Liabilities by Company	12-31-2020 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Maturity Secured Less than Three to Twelve months Total One to Two to Three to Four to More Total Non- 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-1 E.E.U.U US$ 7,96% 7,88% Upon expiration No 4,802,802 — 4,802,802 — — — — 145,773,744 145,773,744 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-2 E.E.U.U US$ 7,40% 7,33% Upon expiration No 1,535,840 — 1,535,840 — — — — 49,297,180 49,297,180 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-3 E.E.U.U US$ 8,26% 8,13% Upon expiration No 972,757 — 972,757 — — — — 23,349,497 23,349,497 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Unica 24296 E.E.U.U US$ 4,32% 4,25% Upon expiration No — 2,551,520 2,551,520 — — 282,085,533 — 282,085,533 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander -317 Serie-H Chile UF 7,17% 6,20% Semestral No — 6,682,676 6,682,676 6,046,629 6,046,629 6,046,629 6,046,629 15,431,031 39,617,547 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander 522 Serie-M Chile UF 4,82% 4,75% Semestral No — 26,918,616 26,918,616 26,427,546 26,427,546 26,427,546 26,427,546 104,365,959 210,076,143 76.536.353-5 Enel Chile S.A. Chile Foreign BNY Mellon - Unica E.E.U.U US$ 5,24% 4,88% Upon expiration No 1,829,215 — 1,829,215 695,907,008 695,907,008 Total Unsecured Bonds 9,140,614 36,152,812 45,293,426 32,474,175 32,474,175 314,559,708 32,474,175 1,034,124,419 1,446,106,652 12-31-2019 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Maturity Secured Less than Three to Twelve months Total One to Two to Three to Four to More Total Non- 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-1 E.E.U.U US$ 7,96% 7,88% Upon expiration No 5,058,091 — 5,058,091 — — — — 153,480,285 153,480,285 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-2 E.E.U.U US$ 7,40% 7,33% Upon expiration No 1,617,476 — 1,617,476 — — — — 51,960,662 51,960,662 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-3 E.E.U.U US$ 8,26% 8,13% Upon expiration No 1,024,463 — 1,024,463 — — — — 24,876,133 24,876,133 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Unica 24296 E.E.U.U US$ 4,32% 4,25% Upon expiration No — 2,828,573 2,828,573 — — — 296,420,703 — 296,420,703 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander -317 Serie-H Chile UF 7,17% 6,20% Semestral No — 6,592,332 6,592,332 5,888,467 5,888,467 5,888,467 5,888,467 20,428,651 43,982,519 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander 522 Serie-M Chile UF 4,82% 4,75% Semestral No — 26,267,670 26,267,670 25,736,309 25,736,309 25,736,309 25,736,309 127,107,303 230,052,539 76.536.353-5 Enel Chile S.A. Chile Foreign BNY Mellon - Unica E.E.U.U US$ 5,24% 4,88% Upon expiration No — 1,926,446 1,926,446 — — — — 731,202,011 731,202,011 Total Unsecured Bonds 7,700,030 37,615,021 45,315,051 31,624,776 31,624,776 31,624,776 328,045,479 1,109,055,045 1,531,974,852
Summary of Changes in Reserve for Cash Flow Hedges	For the years ended December 31, 2020 2019 2018 ThCh$ ThCh$ ThCh$ Balance in hedging reserves (hedging income) at the beginning of the period, net (189,813,409) (127,508,852) (27,168,007) Exchange differences recorded in shareholders' equity, net 98,288,849 (77,347,380) (101,790,308) Exchange differences charged to income, net 31,178,897 15,042,823 12,478,369 Other (OPA 33.57% 02.04.2018 on Enel Generación Chile) — — (11,028,906) Balance in hedging reserves (hedging income) at the end of the period, net (60,345,663) (189,813,409) (127,508,852)
Summary of estimation of undiscounted flows by bank loans	Current Non-Current Current Non-Current Maturity Current Maturity Total Non-Current Maturity Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to four years More than five years as of 12-31-2020 One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to four years More than five years as of 12-31-2020 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 845,182 109,110,564 109,955,746 21,608,084 - - - 21,608,084 2,542,588 120,375,278 122,917,866 118,121,339 22,859,559 - - 140,980,898 Chile CLP 4 - 4 - - - - - 5 - 5 - - - - - Totals 845,186 109,110,564 109,955,750 21,608,084 - - - 21,608,084 2,542,593 120,375,278 122,917,871 118,121,339 22,859,559 - - 140,980,898
Summary of Guaranteed and Unsecured bonds	Non-Current Current Non-Current Maturity Total Current Maturity Total Non-Current Maturity Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2020 One to Three Months Three to twelve months as of 12-31-2019 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 16,734,114 50,202,339 66,936,453 66,936,453 66,936,453 342,771,185 54,388,490 1,256,555,902 1,787,588,483 17,750,370 53,251,108 71,001,478 71,001,479 71,001,479 71,001,479 362,787,755 1,387,871,953 1,963,664,145 Chile U.F. 3,570,187 42,691,404 46,261,591 44,640,241 43,018,892 41,397,542 39,776,193 138,302,651 307,135,519 6,136,022 49,438,671 55,574,693 53,077,463 50,580,233 48,083,003 45,585,772 186,005,287 383,331,758 Totals 20,304,301 92,893,743 113,198,044 111,576,694 109,955,345 384,168,727 94,164,683 1,394,858,553 2,094,724,002 23,886,392 102,689,779 126,576,171 124,078,942 121,581,712 119,084,482 408,373,527 1,573,877,240 2,346,995,903

Lease Liabilities (Tables)

Lease Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
LEASE LIABILITIES
Schedule of lease liabilities	12-31-2020 12-31-2019 Lease liability Current Non-Current Current Non-Current Lease liability 7,007,711 44,857,807 5,842,015 47,565,674 Total 7,007,711 44,857,807 5,842,015 47,565,674
Schedule of individualization of lease liabilities	December 31, 2020 December 31, 2019 Current Non-Current ThCh$ Taxpayer ID Company Country Taxpayer ID Company Country Currency Effective Maturity Less than More Total One to Two to Three to Four to More Total Non- Less than More Total One to Two to Three to Four to More Total Non- 91.081.000-6 Enel Generación Chile S.A. Chile 76.555.400-4 Transelec S.A Chile US$ 6,50% Monthly 613,801 1,900,462 2,514,263 2,677,690 5,044,096 — — — 7,721,786 606,973 1,879,324 2,486,297 2,647,907 2,820,020 5,312,211 — — 10,780,138 91.081.000-6 Enel Generación Chile S.A. Chile 10.579.624-2 Marcelo Alberto Amar Basulto Chile UF 2,06% Monthly 4,631 13,872 18,503 18,828 19,215 19,610 20,014 193,632 271,299 4,067 13,237 17,304 17,966 18,335 18,713 19,097 208,057 282,168 91.081.000-6 Enel Generación Chile S.A. Chile 91.004.000-6 Productos Fernandez S.A. Chile UF 2,09% Monthly 13,012 26,063 39,075 35,386 36,127 36,882 37,654 384,022 530,071 12,399 24,861 37,260 33,755 34,460 35,182 35,917 410,646 549,960 91.081.000-6 Enel Generación Chile S.A. Chile 61.216.000-7 Empresa de Ferrocarriles del Estado Chile UF 1,07% Biannual 1,163 578 1,741 — — — — — — 1,104 557 1,661 1,123 — — — — 1,123 91.081.000-6 Enel Generación Chile S.A. Chile 78.392.580-K Agricola el Bagual LTDA. Chile UF 1,91% Annual 1,205 — 1,205 588 597 — — — 1,185 1,152 — 1,152 564 573 581 — — 1,718 91.081.000-6 Enel Generación Chile S.A. Chile 99.527.200-8 Rentaequipos Tramaca S.A. Chile UF 0,83% Monthly 144,460 — 144,460 — — — — — — 144,436 — 144,436 — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 96.565.580-8 Compañía de Leasing Tattersall S A. Chile UF 0,83% Monthly 9,546 — 9,546 — — — — — — 6,607 — 6,607 — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 8.992.234-8 Roberto Guzman Borquez Chile CLP 1,37% Monthly 367 1,099 1,466 1,483 1,377 — — — 2,860 — — — — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 19.048.130-1 Yaritza Alexandra Bernal Chile UF 1,37% Monthly 379 1,140 1,519 1,538 1,431 — — — 2,969 — — — — — — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 71.024.400-6 Corporación Comunidades V. Chile CLP 1,07% Monthly 1,034 3,005 4,039 — — — — — — — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.643.660-3 INMOBILIARIA EL ROBLE S.A. Chile UF 1,41% Monthly 19,023 38,171 57,194 — — — — — — 12,589 41,263 53,852 48,574 — — — — 48,574 96.800.570-7 Enel Distribución Chile S.A. Chile 2.859.481-K NURIA FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 2.478.836-9 JUANA FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 3.800.735-1 CARMEN ELVIRA ECHAVARRY DE LA SIERRA Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 5.742.701-9 JORGE FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 5.120.460-3 CARMEN FERRER PARES Chile UF 1,20% Monthly — — — — — — — — — 4,244 7,621 11,865 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 70.015.730-K MUTUAL DE SEGUROS DE CHILE Chile UF 1,91% Monthly 21,619 47,378 68,997 64,225 65,453 66,704 67,977 57,639 321,998 13,990 45,274 59,264 61,373 62,545 63,741 64,959 111,258 363,876 96.800.570-7 Enel Distribución Chile S.A. Chile 76.596.523-3 CAPITAL INVESTI Chile UF 1,91% Monthly 17,765 38,732 56,497 52,505 53,508 54,530 55,571 47,121 263,235 11,479 37,011 48,490 50,173 51,131 52,108 53,104 90,955 297,471 96.800.570-7 Enel Distribución Chile S.A. Chile 77.651.230-3 INVERSIONES TAPIHUE LTDA Chile UF 1,20% Monthly — — — — — — — — — 10,501 — 10,501 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.253.641-2 BCYCLE LATAM S.P.A Chile CLP 6,24% Annual 60,000 — 60,000 16,679 17,719 18,825 — — 53,223 — 20,000 20,000 15,699 16,679 17,719 18,825 — 68,922 96.800.570-7 Enel Distribución Chile S.A. Chile 76.203.089-6 RENTAS INMOBILIARIAS AMANECER S.A. Chile UF 1,56% Monthly 4,563 39,724 44,287 17,803 — — — — 17,803 12,239 24,679 36,918 51,480 14,593 — — — 66,073 96.800.570-7 Enel Distribución Chile S.A. Chile 61.219.000-3 EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A Chile US$ 5,99% Annual — 327,074 327,074 111,940 118,640 125,742 133,269 1,249,650 1,739,241 — 350,227 350,227 114,222 120,634 130,857 132,426 1,476,550 1,974,689 96.800.570-7 Enel Distribución Chile S.A. Chile 85.208.700-5 RENTAEQUIPOS LEASING S.A. Chile UF 1,20% Monthly — — — — — — — — — 774 — 774 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 1,41% Monthly 6,122 3,174 9,296 — — — — — — 1,628 5,363 6,991 4,544 — — — — 4,544 96.800.570-7 Enel Distribución Chile S.A. Chile 76.013.489-9 INVERSIONES DON ISSA LTDA Chile UF 1,67% Monthly 23,746 54,777 78,523 73,305 30,904 — — — 104,209 16,118 51,903 68,021 70,215 71,388 24,186 — — 165,789 96.800.570-7 Enel Distribución Chile S.A. Chile 76.164.095-K INMOBILARIA MIXTO RENTA SpA Chile UF 1,07% Monthly — — — — — — — — — 16,530 — 16,530 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 1,41% Monthly 2,735 — 2,735 — — — — — — 278 3,392 3,670 652 — — — — 652 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 1,41% Monthly 3,734 1,864 5,598 — — — — — — 988 3,231 4,219 2,736 — — — — 2,736 96.800.570-7 Enel Distribución Chile S.A. Chile 99.530.420-1 INMOBILIARIA NIALEM SA Chile UF 0,40% Monthly 42,897 128,922 171,819 172,496 173,183 173,873 43,576 — 563,128 — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.164.095-K INMOBILIARIA MIXTO RENTA SPA Chile UF 0,10% Monthly 27,018 81,066 108,084 9,011 — — — — 9,011 — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 0,10% Monthly 178,447 267,473 445,920 356,941 29,760 — — — 386,701 — — — — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.013.489-9 INVERSIONES DON ISSA LTDA Chile UF 1,87% Monthly 17,661 51,992 69,653 70,469 71,799 73,155 30,888 — 246,311 — — — — — — — — — 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 35,148 35,148 28,589 29,315 30,060 30,824 710,142 828,930 — 36,519 36,519 27,274 27,967 28,677 29,406 723,912 837,236 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 25,341 25,341 20,609 21,133 21,670 22,220 511,934 597,566 — 26,329 26,329 19,661 20,161 20,673 21,198 521,858 603,551 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 29,576 29,576 24,055 24,666 25,293 25,936 597,533 697,483 — 30,727 30,727 22,949 23,532 24,130 24,743 609,121 704,475 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 26,576 26,576 21,613 22,162 22,725 23,303 536,865 626,668 — 27,615 27,615 20,619 21,143 21,680 22,231 547,270 632,943 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 3,334 3,334 2,524 2,591 2,659 2,729 86,937 97,440 — 3,738 3,738 2,793 2,864 2,937 3,011 74,129 85,734 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 47,443 47,443 43,329 44,481 45,664 46,879 1,249,297 1,429,650 — 47,317 47,317 44,688 45,824 46,988 48,182 1,190,338 1,376,020 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 31,209 — 31,209 19,136 19,622 20,121 20,632 508,573 588,084 31,087 — 31,087 18,256 18,720 19,195 19,683 517,037 592,891 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 28,607 — 28,607 16,343 16,772 17,213 17,665 530,780 598,773 29,105 — 29,105 17,619 18,066 18,525 18,996 467,606 540,812 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 634 — 634 401 412 422 433 9,973 11,641 628 — 628 383 393 403 413 10,169 11,761 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 1,982 1,982 716 734 753 772 19,605 22,580 — 1,331 1,331 683 700 718 736 20,591 23,428 76.412.562-2 Enel Green Power Chile S.A. Chile 76.400.311-K Fundo Los Buenos Aires SpA Chile UF 2,54% Annual 109,911 — 109,911 70,851 72,651 74,497 76,389 1,408,792 1,703,180 — 111,365 111,365 67,592 69,309 71,070 72,876 1,450,422 1,731,269 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4,94% Annual 33,580 — 33,580 3,163 3,320 3,484 3,656 98,672 112,295 7,914 — 7,914 2,949 3,095 3,248 3,408 99,995 112,695 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4,94% Annual 38,089 — 38,089 6,968 7,313 7,674 8,054 188,256 218,265 15,877 — 15,877 6,496 6,817 7,154 7,507 185,500 213,474 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4,94% Annual 13,834 — 13,834 1,582 1,660 1,742 1,828 49,336 56,148 3,961 — 3,961 1,474 1,547 1,624 1,704 49,994 56,343 76.412.562-2 Enel Green Power Chile S.A. Chile 4.595.479-K Adriana Castro Parra Chile UF 4,94% Annual 33,522 — 33,522 13,937 14,626 15,349 16,108 363,230 423,250 31,828 — 31,828 12,991 13,633 14,307 15,015 370,630 426,576 76.412.562-2 Enel Green Power Chile S.A. Chile 7.256.021-3 Alicia Freire Hermosilla Chile UF 4,31% Annual 97,512 — 97,512 — — — — — — 93,160 — 93,160 88,809 — — — — 88,809 76.412.562-2 Enel Green Power Chile S.A. Chile 77.378.630-5 Agricola Santa Amalia Chile UF 4,94% Annual 22,346 — 22,346 13,937 14,626 15,349 16,108 363,230 423,250 31,828 — 31,828 12,991 13,633 14,307 15,015 370,631 426,577 76.412.562-2 Enel Green Power Chile S.A. Chile 77.894.990-3 Orafti Chile S.A. Chile UF 4,94% Annual 8,966 — 8,966 6,640 6,968 7,313 7,674 183,027 211,622 15,918 — 15,918 6,190 6,496 6,817 7,154 192,635 219,292 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 4,87% Annual 250,048 — 250,048 243,730 255,590 268,028 281,070 4,158,235 5,206,653 — 472,736 472,736 227,365 238,428 250,031 262,197 4,335,384 5,313,405 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 4,94% Annual 13,703 — 13,703 14,008 14,701 15,428 16,190 513,821 574,148 41,389 — 41,389 13,058 13,704 14,381 15,092 520,042 576,277 76.412.562-2 Enel Green Power Chile S.A. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4,94% Annual 19,817 — 19,817 2,297 2,411 2,530 2,655 67,813 77,706 5,605 — 5,605 2,141 2,247 2,359 2,475 66,716 75,938 76.412.562-2 Enel Green Power Chile S.A. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4,94% Annual 46,780 — 46,780 39,840 41,810 43,877 46,046 1,138,013 1,309,586 95,241 — 95,241 37,137 38,973 40,900 42,922 1,156,961 1,316,893 76.412.562-2 Enel Green Power Chile S.A. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4,94% Annual 233,017 — 233,017 3,320 3,484 3,656 3,837 94,835 109,132 7,935 — 7,935 3,095 3,248 3,408 3,577 96,415 109,743 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 70,834 — 70,834 45,685 46,846 48,036 49,256 1,134,814 1,324,637 76,055 — 76,055 43,584 44,691 45,827 46,991 1,156,664 1,337,757 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 91,996 91,996 44,907 46,048 47,218 48,418 1,039,441 1,226,032 — 117,630 117,630 42,842 43,930 45,047 46,191 1,066,692 1,244,702 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual 71,401 — 71,401 17,423 17,866 18,320 18,785 463,049 535,443 29,696 — 29,696 16,622 17,044 17,477 17,921 439,871 508,935 76.412.562-2 Enel Green Power Chile S.A. Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 43,930 43,930 20,454 20,973 21,506 22,052 508,069 593,054 — 29,189 29,189 19,513 20,009 20,517 21,038 548,843 629,920 76.126.507-5 Parque Eólico Talinay Oriente S.A. Chile 76.248.317-3 Agricola Alto Talinay Chile EUR 4,61% Annual 374,657 — 374,657 218,600 228,677 239,219 250,247 2,840,625 3,777,368 — 367,982 367,982 201,806 211,109 220,842 231,022 2,951,326 3,816,105 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile EUR 5,02% Annual — 596,278 596,278 181,888 191,016 200,603 210,671 2,441,450 3,225,628 — 260,072 260,072 167,261 175,655 184,471 193,729 2,532,578 3,253,694 76.321.458-3 Almeyda Solar SPA Chile 76.259.106-5 Inmobiliaria Terra Australis Tres S.A. Chile UF 6,39% Biannual 32,757 19,025 51,782 39,084 40,507 41,981 43,509 1,177,273 1,342,354 — 46,597 46,597 54,543 55,929 57,350 58,807 1,012,677 1,239,306 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 6,39% Annual — 99,022 99,022 74,302 76,190 78,126 80,111 1,845,677 2,154,406 — 98,189 98,189 70,885 72,686 74,533 76,427 1,881,835 2,176,366 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,23% Annual 47,369 — 47,369 39,288 40,165 41,061 41,978 224,377 386,869 48,681 — 48,681 37,594 38,433 39,291 40,168 258,481 413,967 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,36% Annual 32,932 — 32,932 23,945 24,511 25,090 25,683 292,688 391,917 32,269 — 32,269 22,884 23,424 23,978 24,545 311,762 406,593 76.321.458-3 Almeyda Solar SPA Chile 79.938.160-5 Soc. Serv. Com.. Multiservice F.L. Chile UF 2,94% Annual — 101,743 101,743 36,866 37,949 39,065 40,213 963,970 1,118,063 — 35,334 35,334 35,034 36,064 37,124 38,215 981,212 1,127,649 76.321.458-3 Almeyda Solar SPA Chile 61.402.000-8 Ministerio de Bienes Nacionales Chile UF 2,54% Annual — 26,523 26,523 10,430 11,006 11,613 12,254 571,751 617,054 — 34,408 34,408 25,058 25,694 26,347 27,017 621,989 726,105 76.536.353-5 Enel Chile S.A. Chile 96.565.580-8 COMPAÑIA DE LEASING TATTERSALL S A. Chile UF 0,10% Monthly 2,710 4,065 6,775 5,426 476 — — — 5,902 — — — — — — — — — 76.536.353-5 Enel Chile S.A. Chile 78.822.300-5 Inversiones Cardinal S.A Chile UF 1,20% Monthly — — — — — — — — — 9,281 24,801 34,082 — — — — — — 76.536.353-5 Enel Chile S.A. Chile 78.822.300-5 Inversiones Cardinal S.A Chile UF 1,20% Monthly — — — — — — — — — 9,714 19,465 29,179 — — — — — — Total Leasing 2,829,163 4,178,548 7,007,711 5,036,773 7,067,087 2,026,666 1,903,134 28,824,147 44,857,807 1,512,244 4,329,771 5,842,015 4,515,822 4,565,526 7,061,634 1,783,940 29,638,752 47,565,674
Summary of estimation of undiscounted debt cash flows	Non-Current Current Non-Current Maturity Total Current Maturity Total Non-Current Maturity Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2020 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2020 One to Three Months Three to twelve months as of 12-31-2019 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 805,609 2,544,526 3,350,135 3,343,654 5,400,991 227,6 22 219,295 1,598,935 10,790,497 859,011 2,802,479 3,661,490 3,570,048 3,554,711 5,731,772 258,317 2,063,704 15,178,552 Chile EUR 427,451 - 427,451 582,405 563,152 543,900 524,648 2,334,458 4,548,563 80,971 240,372 321,343 499,678 485,713 471,749 457,785 2,453,454 4,368,379 Chile UF 2,058,130 2,175,978 4,234,108 3,289,984 2,954,856 2,808,037 2,598,818 30,660,789 42,312,484 821,084 2,293,383 3,114,467 2,895,029 2,523,717 2,462,599 2,412,029 30,885,469 41,178,843 Chile Ch$ 24,156 - 24,156 20,234 19,173 18,112 - - 57,519 1,180 23,113 24,293 17,847 16,967 16,087 15,207 - 66,108 Totals 3,315,346 4,720,504 8,035,850 7,236,277 8,938,172 3,597,671 3,342,761 34,594,182 57,709,063 1,762,246 5,359,347 7,121,593 6,982,602 6,581,108 8,682,207 3,143,338 35,402,627 60,791,882

Risk Management Policy (Tables)

Risk Management Policy (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Abstract]
Comparative Structure of Financial Debt According to Fixed and /or Protected Interest Rate on Gross Debt	For the years ended December 31, 2020 2019 % % Fixed interest rate 99% 98%

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
FINANCIAL INSTRUMENTS
Summary of Financial Assets Classified by Type and Category	a) The detail of financial assets, classified by type and category, as of December 31, 2020 and 2019 is as follows: 12-31-2020 Financial assets at fair value with changes in results Financial assets measured at amortized cost Financial assets at fair value with changes in other comprehensive income Financial ThCh$ ThCh$ ThCh$ ThCh$ Equity instruments — — 127,854 — Trade and other accounts receivable — 592,856,895 — — Derivative instruments 3,033,502 — 18,387,261 1,000,964 Other financial assets — 808,692 — — Total Current 3,033,502 593,665,587 18,515,115 1,000,964 Equity instruments — — 2,326,480 — Trade and other accounts receivable — 493,375,481 — — Derivative instruments 1,911,233 — — 16,422,737 Other financial assets — — — — Total Non-current 1,911,233 493,375,481 2,326,480 16,422,737 Total 4,944,735 1,087,041,068 20,841,595 17,423,701 12-31-2019 Financial assets at fair value with changes in results Financial assets measured at amortized cost Financial assets at fair value with changes in other comprehensive income Financial ThCh$ ThCh$ ThCh$ ThCh$ Equity instruments — — 127,854 — Trade and other accounts receivable — 576,740,203 — — Derivative instruments 1,618,318 — 1,323,556 277,702 Other financial assets — 860,425 — — Total Current 1,618,318 577,600,628 1,451,410 277,702 Equity instruments — — 2,349,221 — Trade and other accounts receivable — 347,981,527 — — Derivative instruments — — — 4,871,397 Other financial assets — 2 — — Total Non-current — 347,981,529 2,349,221 4,871,397 Total 1,618,318 925,582,157 3,800,631 5,149,099
Summary of Financial Liabilities Classified by Type and Category	a) The detail of financial liabilities, classified by type and category, as of December 31, 2020 and 2019 is as follows: 12-31-2020 Financial liabilities at fair value with changes in results Financial liabilities measured at amortized cost Financial liabilities at fair value with changes in other comprehensive income Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 152,076,992 — — Trade and other accounts payable — 757,965,390 — — Derivative instruments 4,841,020 — 45,543 581,129 Other financial liabilities — 7,007,711 — — Total Current 4,841,020 917,050,093 45,543 581,129 Interest-bearing loans — 1,467,421,655 — — Trade and other accounts payable — 1,281,254,521 — — Derivative instruments — — — 16,167,471 Other financial liabilities — 44,857,807 — — Total Non-current — 2,793,533,983 — 16,167,471 Total 4,841,020 3,710,584,076 45,543 16,748,600 12-31-2019 Financial liabilities at fair value with changes in results Financial liabilities measured at amortized cost Financial liabilities at fair value with changes in other comprehensive income Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 164,404,334 — — Trade and other accounts payable — 750,103,757 — — Derivative instruments 2,026,476 — 8,924,831 48,225,766 Other financial liabilities — — — — Total Current 2,026,476 914,508,091 8,924,831 48,225,766 Interest-bearing loans — 1,714,837,545 — — Trade and other accounts payable — 840,623,569 — — Other financial liabilities 124,048 — — 25,208,326 Total Non-current 124,048 2,555,461,114 — 25,208,326 Total 2,150,524 3,469,969,205 8,924,831 73,434,092
Summary of Financial Derivative Transactions Qualifying as Hedge Instruments Resulted in Recognition of Assets and Liabilities	As of December 31, 2020 and 2019, financial derivative qualifying as hedging instruments resulted in recognition of the following assets and liabilities in the statement of financial position: 12-31-2020 Assets Liabilities Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: — — 1,947,377 12,944,130 Cash flow hedge — — 1,947,377 12,944,130 Exchange rate hedge: 1,000,964 16,422,737 3,451,487 3,223,341 Cash flow hedge 1,000,964 16,422,737 3,451,487 3,223,341 Total 1,000,964 16,422,737 5,398,864 16,167,471 12-31-2019 Assets Liabilities Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: 322,316 8,447 — 7,743,401 Cash flow hedge 322,316 8,447 — 7,743,401 Exchange rate hedge: — 4,862,950 48,225,766 17,464,925 Cash flow hedge — 4,862,950 48,225,766 17,464,925 Total 322,316 4,871,397 48,225,766 25,208,326
Summary of Hedge Derivative Instruments and Their Corresponding Hedged Instruments	Hedging derivative instruments and their corresponding hedged instruments are shown in the following table: Fair value of Fair value of Type of Description Description hedged item hedged item Type hedge of hedged of hedged 12-31-2020 12-31-2019 of instrument risk item ThCh$ ThCh$ risk hedged SWAP Interest rate Others — (699,158) Cash flow SWAP Exchange rate Unsecured obligations (bonds) 12,763,777 (9,530,240) Cash flow SWAP Interest rate Loans with Related Companies (12,944,129) (6,991,184) Cash flow SWAP Interest rate Bank loans (1,947,377) 277,703 Cash flow FORWARD Exchange rate Operational Income (1,967,328) (51,297,500) Cash flow FORWARD Interest rate Others (77,558) — Cash flow FORWARD Exchange rate Other 29,981 — Cash flow
Summary of Financial Derivative Transactions Recorded at Fair Value Through Profit or Loss Resulted in the Recognition of Assets and Liabilities	As of December 31, 2020 and 2019, financial derivative transactions recognized at fair value through profit or loss, resulted in the recognition of the following liabilities in the statement of financial position: 12-31-2020 12-31-2019 Current Current Liabilities Non-Current Non-Current Liabilities Current Current Liabilities Non-Current Non-Current Liabilities ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Non-hedging derivative instrument 1,414,895 23,285 1,911,233 — — 2,026,476 — 124,048 Total 1,414,895 23,285 1,911,233 — — 2,026,476 — 124,048
Summary of Fair Value of Hedging and Non-hedging Derivatives Entered Into by the Group as Well as the Remaining Contractual Maturities	The following table sets forth the fair value of hedging and non-hedging derivatives entered into by the Group as well as the remaining contractual maturities as of December 31, 2020 and 2019. 12-31-2020 Notional Amount Fair value Less than 1 year 1-2 years 2-3 years 3-4 years 4-5 years Total Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: (14,891,507) 106,642,500 284,380,000 — — — 391,022,500 Cash flow hedge (14,891,507) 106,642,500 284,380,000 — — — 391,022,500 Exchange rate hedge: 10,748,873 143,449,971 3,390 — 504,391,045 95,129,590 742,973,996 Cash flow hedge 10,748,873 143,449,971 3,390 — 504,391,045 95,129,590 742,973,996 Derivatives not designated for hedge accounting 3,302,843 30,063,763 21,189,518 8,742,828 285,368 — 60,281,477 Total (839,791) 280,156,234 305,572,908 8,742,828 504,676,413 95,129,590 1,194,277,973 12-31-2019 Notional Amount Fair value Less than 1 year 1-2 years 2-3 years 3-4 years 4-5 years Total Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: (7,412,638) 112,311,000 112,311,000 299,496,000 — — 524,118,000 Cash flow hedge (7,412,638) 112,311,000 112,311,000 299,496,000 — — 524,118,000 Exchange rate hedge: (60,827,741) 490,799,070 40,581,708 — — 517,637,686 1,049,018,464 Cash flow hedge (60,827,741) 490,799,070 40,581,708 — — 517,637,686 1,049,018,464 Derivatives not designated for hedge accounting (2,150,524) 31,746,086 2,061,840 — — — 33,807,926 Total (70,390,903) 634,856,156 154,954,548 299,496,000 — 517,637,686 1,606,944,390
Schedule of Financial Assets and Liabilities Measured at Fair Value	The following table presents financial assets and liabilities measured at fair value as of December 31, 2020 and 2019: 6 Fair Value Measured at End of Reporting Period Using: 12-31-2020 Level 1 Level 2 Level 3 Financial Instruments Measured at Fair Value ThCh$ ThCh$ ThCh$ ThCh$ Financial Assets: Financial derivatives designated as cash flow hedges 17,423,701 — 17,423,701 — Financial derivatives not designated for hedge accounting 3,326,128 — 3,326,128 — Derivatives of commodities designated as non-hedging of cash flow at fair value through profit or loss 1,618,607 — 1,618,607 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 18,387,261 — 18,387,261 Equity instruments at fair value with changes in other comprehensive income 2,454,334 2,326,480 127,854 — Total 43,210,031 2,326,480 40,883,551 — Financial Liabilities: Financial derivatives designated as cash flow hedges 21,566,335 — 21,566,335 — Financial derivatives not designated for hedge accounting 23,285 — 23,285 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 45,543 — 45,543 — Total 21,635,163 — 21,635,163 — Fair Value Measured at End of Reporting Period Using: 12-31-2019 Level 1 Level 2 Level 3 Financial Instruments Measured at Fair Value ThCh$ ThCh$ ThCh$ ThCh$ Financial Assets: Financial derivatives designated as cash flow hedges 5,193,713 — 5,193,713 — Derivatives of commodities designated as non-hedging of cash flow at fair value through profit or loss 1,573,704 — 1,573,704 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 1,323,556 — 1,323,556 — Equity instruments at fair value with changes in other comprehensive income 2,477,077 2,349,223 127,854 Total 10,568,050 2,349,223 8,218,827 — Financial Liabilities: Financial derivatives designated as cash flow hedges 73,434,092 — 73,434,092 — Financial derivatives not designated for hedge accounting 2,150,524 — 2,150,524 — Derivatives of commodities designated as cash flow hedges at fair value with changes in other comprehensive income 8,924,831 — 8,924,831 — Total 84,509,447 — 84,509,447 —

Current and Non-Current Payab_2

Current and Non-Current Payables (Tables)	12 Months Ended
	Dec. 31, 2020
CURRENT AND NON-CURRENT PAYABLES
Summary of Trade and Other Current Payables	Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Trade and Other Payables ThCh$ ThCh$ ThCh$ ThCh$ Energy suppliers (1) 135,817,661 178,153,813 112,895,627 53,941,373 Fuel and gas suppliers 36,735,748 55,179,023 — — Payables for goods and services 153,883,621 183,848,556 487 487 Payables for assets acquisition 251,679,169 100,307,602 4,233,657 2,281,051 Subtotal Trade Payables 578,116,199 517,488,994 117,129,771 56,222,911 Other Payables Dividends payable to third parties 5,755,000 41,582,444 — — Accounts payables to employees 35,256,939 33,495,586 — — Other payables 8,829,884 6,696,184 80,288 27,174 Subtotal other current payables 49,841,823 81,774,214 80,288 27,174 Total 627,958,022 599,263,208 117,210,059 56,250,085 (1)

Provisions (Tables)

Provisions (Tables)	12 Months Ended
	Dec. 31, 2020
PROVISIONS
Summary of Breakdown of Provisions	a) The detail of provisions as of December 31, 2020 and 2019, is detailed as follows: Current Non-current 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Provisions ThCh$ ThCh$ ThCh$ ThCh$ Provision for legal proceedings 1,492,140 2,320,885 14,843,034 11,210,305 Decommissioning or restoration (*) — — 191,867,939 160,649,977 Other provisions 1,942,664 1,745,080 3,530,698 — Total 3,434,804 4,065,965 210,241,671 171,860,282 (1) See Note 3.a.
Summary of Changes in Provisions	Changes in provisions as of December 31, 2020 and 2019, are as follows: Legal Decommissioning or Environmental Issues and Other Provisions Total Changes in Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance as of January 1, 2020 13,531,190 160,649,977 1,745,080 175,926,247 Increase (decrease) in existing provisions (1) 5,905,427 29,964,811 3,728,282 39,598,520 Provisions used (1,471,151) (1,743,534) — (3,214,685) Reversal of unused provision (1,474,149) — — (1,474,149) Increase from adjustment to time value of money (2) — 4,115,292 — 4,115,292 Foreign currency translation (156,143) (1,118,607) — (1,274,750) Total changes in provisions 2,803,984 31,217,962 3,728,282 37,750,228 Balance as of December 31, 2020 16,335,174 191,867,939 5,473,362 213,676,475 Legal Decommissioning or Environment Total Changes in Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance as of January 1, 2019 17,352,876 92,402,517 1,704,768 111,460,161 Increase (decrease) in existing provisions (1) 3,749,833 62,688,286 40,168 66,478,287 Provisions used (3,946,144) (31,436) (11) (3,977,591) Reversal of unused provision (3,612,445) — — (3,612,445) Increase from adjustment to time value of money (2) — 4,356,650 — 4,356,650 Foreign currency translation (12,930) 1,233,960 155 1,221,185 Total changes in provisions (3,821,686) 68,247,460 40,312 64,466,086 Balance as of December 31, 2019 13,531,190 160,649,977 1,745,080 175,926,247 1) The increase in the allowances for decommissioning or restoration during 2020 is explained primarily by the process to closure the Bocamina II plant’s operations. This resulted in an increase in the present value of the obligation, as a consequence of the adjustment to the previously established terms for making the disbursements, along with performing an update to the estimated values thereof (see Note 16.c.iv). 2) The variation in allowances for decommissioning or restoration during the year ended December 31, 2019 is primarily due to the increase in expected disbursements for the early closure of the Tarapacá and Bocamina I plants, framed within the Group's agreement with the Ministry of Energy to progressively cease operations of coal-fired generation plants (see Note 16.c.iv); and, to a lesser degree, an increase in the present value of provisions, due to a relevant decrease in the discount rates applied. Corresponds to a financial restatement, see Note 34

Post Employee Benefit Obligat_2

Post Employee Benefit Obligations (Tables)	12 Months Ended
	Dec. 31, 2020
POST EMPLOYEE BENEFIT OBLIGATIONS
Summary of Post- employment Obligations Associated with Defined Benefits Plan	a) The post-employment obligations associated with defined benefits plans and the related plan assets as of December 31, 2020 and 2019. 12-31-2020 12-31-2019 ThCh$ ThCh$ Employee severance indemnities 50,011,279 42,697,317 Complementary Pension 18,896,906 17,853,600 Health Plans 3,145,989 3,090,670 Energy Supply Plans 3,484,091 2,521,903 Total post-employment obligations, net 75,538,265 66,163,490
Summary of Defined Benefit Plans Expense Recognized in Statements of Comprehensive Income	a) The following amounts were recognized in the consolidated statement of comprehensive income for the years ended December 31, 2020, 2019 and 2018. For the years ended December 31, Expense Recognized in 2020 2019 2018 Comprehensive Income ThCh$ ThCh$ ThCh$ Cost of current defined benefit plan service (2,132,231) (1,928,868) (1,920,262) Defined benefit plan interest cost (1) (2,146,386) (2,639,738) (2,750,376) Past service cost — (1,224,527) 39,060 Expenses recognized in Profit or Loss (4,278,617) (5,793,133) (4,631,578) Gains (losses) from remeasurement of defined benefit plans (8,545,834) (7,777,204) 37,881 Total expense recognized in the Statement of Comprehensive Income (12,824,451) (13,570,337) (4,593,697) (1) See Note 34
Summary of Balance and Changes in Post-employment Defined Benefit Obligations	c) The balance and changes in post-employment defined benefit obligations as of December 31, 2020 and 2019 are as follows: Actuarial Value of Post-employment Obligations ThCh$ Balance at January 1, 2019 56,602,664 Current service cost 1,928,868 Interest cost 2,639,738 Actuarial (gains) losses from changes in financial assumptions 5,724,985 Actuarial (gains) losses from changes in experience adjustments 2,052,219 Foreign currency translation 9,786 Past Service Cost Defined Benefit Plan Obligation 1,224,527 Contributions paid (4,068,988) Transfer of employees 49,691 Balance at December 31, 2019 66,163,490 Current service cost 2,132,231 Interest cost 2,146,386 Actuarial (gains) losses from changes in financial assumptions 4,695,927 Actuarial (gains) losses from changes in experience adjustments 3,849,907 Foreign currency translation 102,073 Contributions paid (3,335,366) Transfer of employees (216,383) Closing balance December 31, 2020 75,538,265
Summary of Assumptions Used in Actuarial Calculation of Defined Benefits	As of December 31, 2020, and 2019, the following assumptions were used in the actuarial calculation of defined benefit plans: 12-31-2020 12-31-2019 Discount rates used 2.60% 3.40% Expected rate of salary increases 3.80% 3.80% Turnover rate 7.10% 5.24% Mortality tables CB-H-2014 and RV-M-2014 CB-H-2014 / RV-M-2014
Summary of Expected Flow for Benefits for Next Ten Years	Enel Chile´s obligations have a weighted average length of 7 .98 years and the outflows of benefits for the next 10 years is expected to be as follows: Years ThCh$ 1 8,445,218 2 6,484,023 3 5,441,166 4 6,022,293 5 5,467,563 6 to10 25,094,378

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Shareholders Equity [Line Items]
Schedule of Movements in Shares as Result of Merger	Changes in the number of Enel Chile’s shares as a result of the abovementioned corporate reorganization process are detailed as follows: Number of outstanding shares of Enel Chile prior to the reorganization Number of shares Ratio for exchange of shares Number of shares Public Tender Offer Shares of Enel Generation (1): Purchased shares - national market 2.88 Purchased shares - ADS 2.88 491,455,472 Total Public Tender Offer for Shares 7,923,600,070 Enel Chile Preemtive right shares (2): Shares paid for by shareholders Total Preemtive Rights Merger with EGPL (3): Shares issued to Enel SpA 15.8 13,069,844,862 Total Merger with EGPL 13,069,844,862 Repurchase of shares (4): Withdrawal Rights exercised by minority shareholders of Enel Chile Total repurchase of shares Number of issued shares in Enel Chile after merger Total number of shares issued Total number of treasury shares Number of issued shares in Enel Chile after merger (1) The total amount for the issuance of these new shares was ThCh$649,730,695. (2) The payment made by the minority shareholders of Enel Chile was ThUS$3,924,530. (3) The valuation of the capital increase due to the merger was ThCh$1,071,727,279. (4) The total amount paid for the repurchase of shares was ThCh$72,388,009.
Summary of Dividends Paid	Dividends Dividend No. Type of Agreement Payment Date Total Amount M$ Pesos per Charged to Fiscal 4 Interim 12-20-2017 01-26-2018 37,134,944 0.75642 2017 5 Final 04-25-2018 05-18-2018 155,025,509 2.24134 2017 6 Interim 11-29-2018 01-25-2019 31,288,371 0.45236 2018 7 Final 04-29-2019 05-17-2019 185,737,592 2.68537 2018 8 Interim 11-26-2019 01-31-2020 30,933,437 0.44723 2019 9 Final 04-29-2020 05-27-2020 146,758,726 2.12182 2019 9 Eventual 04-29-2020 05-27-2020 114,883,119 1.66096 (1) On April 29, 2020, the distribution of the obligatory minimum dividend (final dividend No. 9) was agreed upon, with charge to the profit for 2019. Additionally, and to offset the resulting impairment of the subsidiary Enel Generación Chile in 2019 (see Note 16.c.iv, Development during 2019), the distribution of a provisional dividend (No. 9) was approved with charge to the retained earnings for previous years.
Summary of Foreign Currency Translation Differences Attributable to Shareholders	The detail by company of the translation differences attributable to owners of the Group, of the consolidated statement of financial position as of December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 12-31-2020 12-31-2019 12-31-2018 Reserves for Accumulated Currency Translation Differences ThCh$ ThCh$ ThCh$ Enel Generación Chile S.A. (7,746,933) (3,292,629) 302,222 GNL Chile S.A. 907,869 1,022,047 900,483 Grupo Enel Green Power Chile 110,921,404 168,387,151 100,452,131 Enel AMPCI Ebus Chile SpA (432,247) — — TOTAL 103,650,093 166,116,569 101,654,836
Summary of Other Reserves Within Equity	Other reserves for the years ended December 31, 2020 and 2019, are as follows: 01.01.2020 2020 Changes 12-31-2020 Detail of other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 166,116,569 (62,466,476) 103,650,093 Cash flow hedges (291,006,520) 188,060,425 (102,946,095) Financial assets at fair value with changes in other comprehensive income 8,384 (6,601) 1,783 Other miscellaneous reserves (2,280,627,568) 2,296,302 (2,278,331,266) TOTAL (2,405,509,135) 127,883,650 (2,277,625,485) 01.01.2019 2019 Changes 12-31-2019 Detail of other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 101,654,836 64,461,733 166,116,569 Cash flow hedges (191,870,545) (99,135,975) (291,006,520) Financial assets at fair value with changes in other comprehensive income 11,041 (2,657) 8,384 Other miscellaneous reserves (2,285,467,896) 4,840,328 (2,280,627,568) TOTAL (2,375,672,564) (29,836,571) (2,405,509,135) 01.01.2018 2018 Changes 12-31-2018 Detail of other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 6,976,383 94,678,453 101,654,836 Cash flow hedges (32,849,736) (159,020,809) (191,870,545) Financial assets at fair value with changes in other comprehensive income 11,284 (243) 11,041 Other miscellaneous reserves (971,468,479) (1,313,999,417) (2,285,467,896) TOTAL (997,330,548) (1,378,342,016) (2,375,672,564) a) Reserves for exchange differences on translation: These reserves arise primarily from exchange differences relating to the translation of financial statements of the Company’s consolidated entities with functional currencies other than the Chilean peso (see Note 2.7.3). b) Cash flow hedge reserves: These reserves represent the cumulative effective portion of gains and losses on cash flow hedges (see Note 3.g.5 and 3.h). c) Other miscellaneous reserves:
Summary of Non-controlling Interests	The detail of non-controlling interests as of December 31, 2020, 2019 and 2018, is as follows: Non-controlling Interests Equity Profit (Loss) 12-31-2020 12-31-2020 12-31-2019 2020 2019 2018 Companies % ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Enel Distribución Chile S.A. 0,91% 8,188,827 7,691,319 749,261 1,079,941 1,112,709 Enel Generación Chile S.A. 6,45% 111,567,532 126,700,973 (10,006,037) 12,667,880 42,883,953 Empresa Eléctrica Pehuenche S.A. 7,35% 10,113,358 10,079,858 6,403,829 6,241,062 6,885,422 Sociedad AgrÍcola de Cameros Ltda. 42,50% 2,068,169 1,837,612 230,557 (504,550) (254,604) Geotermica del Norte SA 15,41% 55,283,359 57,871,809 645,440 (264,158) (187,989) Empresa Nacional de Geotermia SA 49,00% 11,134 995,614 (515,293) (74,963) 41,780 Parque Eolico Talinay Oriente SA 39,09% 55,283,519 57,586,860 945,454 868,127 662,374 Others (157,189) (178,379) 20,267 (73,726) (5,825) TOTAL 242,358,709 262,585,666 (1,526,522) 19,939,613 51,137,820
Other Miscellaneous Reserves [Member]
Disclosure Of Shareholders Equity [Line Items]
Summary of Other Reserves Within Equity	The main items and their effects are the following: For the years ended 2020 2019 2018 Other Miscellaneous Reserves ThCh$ ThCh$ ThCh$ Company restructuring reserve ("Division") (i) (534,057,733) (534,057,733) (534,057,733) Reserve for transition to IFRS (ii) (457,221,836) (457,221,836) (457,221,836) Reserve for subsidiaries transactions (iii) 12,502,494 12,502,494 12,502,494 Reserves for Tender Offer of Enel Generation “Reorganization of Renewable Assets” (iv) (910,437,224) (910,437,224) (910,437,224) Reserves “Reorganization of Renewable Assets” (v) (407,354,462) (407,354,462) (407,354,462) Argentine hyperinflation (vi) 11,216,652 8,939,332 3,508,753 Other miscellaneous reserves (vii) 7,020,843 7,001,861 7,592,112 TOTAL (2,278,331,266) (2,280,627,568) (2,285,467,896) i) Corporate restructuring reserve (Division): This represents the effect generated by the corporate reorganization of Enersis S.A. (currently Enel Américas), concluded in 2016, by which the company divided its businesses between Chile and the rest of South America. The new company was called Enersis Chile (now Enel Chile), and was assigned the equity corresponding to the related business in Chile. ii) Reserves for transition to IFRS: In compliance with the provisions of Circular No. 456 by the Financial Market Commission, the price-level restatement of accumulated paid-in capital has been incorporated in this category from the date of the Company’s transition to IFRS, i.e., January 1, 2004, through December 1, 2008. iii) Reserves for business combinations: These represent the effect generated by the purchases of interest under common control. iv) "Reorganization of Renewable Assets” Enel Generación Chile Takeover Reserve: This represents the difference between the carrying amount of non-controlling interest acquired as part of the tender offer aimed at acquiring all shares issued by the subsidiary Enel Generación Chile (see Note 5.i). v) "Reorganization of Renewable Assets” Reserve: This corresponds to the reserve constituted by the merger between Enel Green Power Latin América and Enel Chile on April 2, 2018. It represents the recognition of the difference produced by the capital increase in Enel Chile (corresponding to the market value of interest in Enel Green Power Chile and subsidiaries) and the carrying amount of Enel Green Power Latin América's equity that was incorporated under share capital in the net equity distributable to the owners of Enel Chile, as a result of the merger. vi) Hyperinflation in Argentina: This corresponds to the calculated effect of the application of IAS 29 “Financial Reporting in Hyperinflationary Economies” on the branch held by the Enel Generación Chile Group in Argentina (see Note 2.9). vii) Other miscellaneous reserves This reserve derives from transactions performed in prior years.

Revenue and Other Operating I_2

Revenue and Other Operating Income (Tables)	12 Months Ended
	Dec. 31, 2020
REVENUE AND OTHER OPERATING INCOME
Summary of Revenues and Other Operating Income	For the years ended December 31, 2020 2019 2018 Revenues ThCh$ ThCh$ ThCh$ Energy sales (1) 2,380,736,600 2,405,903,242 2,202,078,088 Generation 1,111,508,158 1,090,021,527 1,034,975,160 Regulated customers (2) 480,168,004 540,017,333 643,494,066 Unregulated customers 571,587,710 524,559,735 357,725,928 Spot market sales 59,752,444 25,444,459 33,755,166 Distribution 1,269,228,442 1,315,881,715 1,167,102,928 Residential (2) 608,703,250 552,124,205 455,840,910 Business 366,874,872 450,108,855 378,092,990 Industrial 168,931,181 181,595,960 209,252,478 Other consumers (3) 124,719,139 132,052,695 123,916,550 Other sales 58,870,872 124,113,792 123,345,383 Gas sales 38,808,266 97,564,262 103,717,558 Sales of goods and services 20,062,606 26,549,530 19,627,825 Revenue from other services 108,776,845 94,559,289 84,936,988 Tolls and transmission 41,859,311 31,232,252 20,311,403 Metering equipment leases 3,387,302 2,131,427 4,702,334 Services and Business Advisories provided (Public lighting, connections and electrical advisories) 53,121,851 47,455,465 45,904,638 Other services 10,408,381 13,740,145 14,018,613 Total Revenues 2,548,384,317 2,624,576,323 2,410,360,459 Other Income ThCh$ ThCh$ ThCh$ Temporary leasing of generating facilities 10,662,952 2,777,404 — Commodity derivative income 4,473,463 5,967,739 9,819,777 Income from early termination of electricity supply contracts (4) — 121,117,605 — Income from insurance claims 10,799,437 5,952,589 25,442,309 Other income (5) 11,082,028 10,442,700 11,538,881 Total other income 37,017,880 146,258,037 46,800,967 (1) As of December 31, 2020, a total of ThCh$434,442,879 is included in total revenue, corresponding to estimated and unbilled sales, which are related to estimations made of energy sold in the month of December 2020, including PEC and node prices. As of December 31, 2019 and 2018, the amounts correspond to ThCh$310,301,370 and ThCh$209,288,934, respectively. (2) For the year ended December 31, 2020, this line item includes an effect of ThCh$77,973,766 corresponding to the differences between the prices of electricity supply contracts and regulated prices, which will be billed in the future in accordance with the schedule established in Law No. 21,185 (see Note 9). Of this amount, ThCh$25,154,565 correspond to income that the Group will have to transfer to final customers through its subsidiary Enel Distribución Chile. (3) For the year ended December 31, 2020, Other customers includes revenues from the sale of energy to municipalities of ThCh$35,598,366 (ThCh$45,768,456 and ThCh$36,878,861 as of December 31, 2019 and 2018, respectively), governmental entities of ThCh$17,334,983 (ThCh$20,432,048 and ThCh$20,246,633 as of December 31, 2019 and 2018, respectively), agricultural sector companies of ThCh$10,324,464 (ThCh$9,100,691 and ThCh$6,173,077 as of December 31, 2019 and 2018, respectively), utilities and telecommunications companies of ThCh$27,014,443 (ThCh$24,818,503 and ThCh$26,636,066 as of December 31, 2019 and 2018, respectively), education sector of ThCh$5,749,102 (ThCh$9,367,933 and ThCh$12,470,709 as of December 31, 2019 and 2018, respectively), healthcare services of ThCh $21,407,325 (ThCh$18,975,909 and ThCh$19,629,502 as of December 31, 2019 and 2018, respectively) and other of ThCh$ 7,290,456 (ThCh$ 3,589,156 and ThCh$ 1,881,702 as of December 31, 2019 and 2018, respectively). (4) In February 2019, Anglo American Sur S.A. notified Enel Generación Chile of its decision to terminate early three electricity supply contracts, which both parties had signed in 2016. As stipulated in the termination clauses of the respective contracts, the notice of early termination granted Enel Generación Chile the right to receive termination compensation, consisting of a cash payment by Anglo American Sur S.A., which would be determined according to a predefined calculation mechanism. It is important to note that between the date of notice of the early termination and the date of effective termination of the contracts, there were no performance obligations pending delivery by Enel Generación Chile, as the original contracts established the start of supply in January 2021. Therefore, following the accounting criteria described in Note 3.q), income of ThCh$121,117,605 was recognized. On June 21, 2019, Enel Generación Chile made a non-recourse assignment of the cash flows of this agreement. Consequently, the cash inflow resulted in the derecognition of the account receivable from Anglo American Sur S.A. existing at that date. (5) For the year ended December 31, 2020, Other income includes revenue recovery from customers with unrecorded consumption of ThCh$3,084,840 (ThCh$2,746,764 and ThCh$ 2,847,740 for the years ended December 31, 2019 and 2018, respectively), income from late cancellation of ThCh$456,781 (ThCh$485,684 and ThCh$675,202 for the years ended December 31, 2019 and 2018, respectively) sale of demineralized water of ThCh$1,408,798 (ThCh$498,577 and ThCh$542,927 for the years ended December 31, 2019 and 2018, respectively), and other income of ThCh$6,131,609 (ThCh$6,711,675 and ThCh$7,473,012

Raw Materials and Consumables_2

Raw Materials and Consumables Used (Tables)	12 Months Ended
	Dec. 31, 2020
RAW MATERIALS AND CONSUMABLES USED.
Schedule of Raw Materials and Consumables Used	The detail of raw materials and consumables used presented in profit or loss for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 Raw materials and consumables used ThCh$ ThCh$ ThCh$ Energy purchases (864,863,454) (835,284,742) (747,646,603) Fuel consumption (231,176,489) (230,944,415) (231,028,169) Gas (149,734,219) (134,127,365) (140,145,010) Oil (6,100,077) (3,326,061) (11,146,001) Coal (75,342,193) (93,490,989) (79,737,158) Transportation costs (141,539,687) (196,848,788) (166,875,801) Gas sales costs (34,332,998) (74,998,608) (80,477,713) Other raw materials and consumables (102,533,011) (83,128,698) (66,148,830) Total (1,374,445,639) (1,421,205,251) (1,292,177,116)

Employee Benefits Expense (Tabl

Employee Benefits Expense (Tables)	12 Months Ended
	Dec. 31, 2020
EMPLOYEE BENEFITS EXPENSE.
Summary of Employee Expenses	The detail of employee expenses for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 Employee Benefits Expense ThCh$ ThCh$ ThCh$ Wages and salaries (117,220,406) (109,101,737) (102,897,710) Post-employment benefit obligations expense (2,132,231) (3,153,395) (1,881,202) Social security and other contributions (12,346,828) (14,334,587) (13,405,944) Other employee expenses (5,527,283) (3,015,237) (4,945,478) Total Employee Benefits Expenses (137,226,748) (129,604,956) (123,130,334)

Depreciation, Amortization an_2

Depreciation, Amortization and Impairment Losses (Tables)	12 Months Ended
	Dec. 31, 2020
DEPRECIATION, AMORTIZATION AND IMPAIRMENT LOSSES.
Summary of Depreciation, Amortization and Impairment losses	a) The detail of depreciation and amortization for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, 2020 2019 2018 ThCh$ ThCh$ ThCh$ Depreciation (215,581,938) (224,724,380) (202,971,892) Amortization (14,375,081) (11,903,007) (12,215,408) Total (229,957,019) (236,627,387) (215,187,300) b) The detail of the items related to impairment for the years ended December 31, 2020, 2019 and 2018, is as follows: For the years ended December 31, Generation Distribution Other Total 2020 2019 2018 2020 2019 2018 2020 2019 2018 2020 2019 2018 Information on Impairment Losses by Reportable Segment ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Property, Plant and Equipment (see Note 16)(*) (698,235,380) (280,020,263) — — — — — — — (698,235,380) (280,020,263) — Intangibles (see Note 14) (217,658) — — — — — — — — (217,658) — — Investment Property (see Note 17) — — — — — — 646,597 (742,389) (779,825) 646,597 (742,389) (779,825) Total Reversal of impairment losses (impairment losses) recognized in profit or loss (698,235,380) (280,020,263) — — — — 646,597 (742,389) (779,825) (697,806,441) (280,762,652) (779,825) Impairment gain and reversals from impairment losses in accordance with IFRS 9 (see note 10.d) (1,305,341) (1,338,599) (106,264) (12,998,719) (8,153,419) (4,676,808) (863,647) (554,982) — (15,167,707) (10,047,000) (4,783,072) (*) Relates to the process to closure the operations of Bocamina II for ThCh$697,856,387 mainly, see Note 16, paragraph c), iv)

Other Expenses (Tables)

Other Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
OTHER EXPENSES
Summary of Other Miscellaneous Operating Expenses	Other miscellaneous operating expense for the years ended December 31, 2020, 2019 and 2018, are detailed as follows: For the years ended December 31, 2020 2019 2018 Other Expenses by nature ThCh$ ThCh$ ThCh$ Professional, outsourced and other services (74,630,728) (60,819,733) (69,692,677) Administrative expenses (7,214,238) (8,893,785) (5,991,676) Repairs and maintenance (49,051,950) (50,846,851) (41,829,409) Indemnities and fines (1,029,517) (1,243,376) (455,825) Taxes and charges (5,675,978) (6,802,176) (4,415,819) Insurance premiums (19,992,385) (19,200,681) (15,794,761) Leases and rental costs (4,958,760) (3,824,195) (3,775,007) Marketing, public relations and advertising (2,491,884) (3,274,693) (2,440,070) Write-off Property, Plant and Equipment (*) — (3,510,591) — Travel expenses (2,223,358) (3,991,349) (2,436,407) Environmental expenses (8,313,182) (9,886,690) (9,664,683) Other supplies and services (15,011,354) (11,849,020) (10,713,687) Total (190,593,334) (184,143,140) (167,210,021) See explanation in Note 16 e) paragraph vi).

Other Gains (Losses) (Tables)

Other Gains (Losses) (Tables)	12 Months Ended
	Dec. 31, 2020
OTHER GAINS (LOSSES)
Summary of Other gains (losses)	The detail of other gains (losses) for the years ended December 31, 2020, 2019 and 2018 is as follows: For the years ended December 31, 2020 2019 2018 Other Gains (Losses) ThCh$ ThCh$ ThCh$ Gain on sale of Property, Plant and Equipment 9,384,038 1,530,689 3,024,549 Result of other investments 104,777 262,512 385,830 Total 9,488,815 1,793,201 3,410,379

Financial Results (Tables)

Financial Results (Tables)	12 Months Ended
	Dec. 31, 2020
FINANCIAL RESULTS.
Summary of Financial Income and Costs	Finance income and costs for the years ended December 31, 2020, 2019 and 2018, are as follows: For the years ended December 31, 2020 2019 2018 Finance Income ThCh$ ThCh$ ThCh$ Income from deposits and other financial instruments 7,324,057 8,973,606 9,612,575 Interests charged to customers in energy accounts and billing 12,477,393 8,057,203 7,140,984 Financial income by Law N°21,185 (1) 15,328,829 5,225,739 Other financial income 1,030,181 5,142,727 3,180,909 Total Finance Income 36,160,460 27,399,275 19,934,468 For the years ended December 31, 2020 2019 2018 Finance Costs ThCh$ ThCh$ ThCh$ Finance Costs (127,408,771) (164,897,900) (122,184,189) Bank loans (7,151,030) (14,487,700) (20,701,774) Bonds payable to the public not guaranteed (84,268,247) (81,818,564) (62,255,300) Lease obligations (2,128,360) (1,815,170) (739,069) Valuation of financial derivatives for cash flow hedging (5,887,498) 1,775,749 1,183,228 Financial update of provisions (2) (4,115,292) (4,356,650) (3,176,001) Post-employment benefit obligations (3) (2,146,386) (2,639,738) (2,750,376) Debt formalization expenses and other associated expenses (2,646,906) (4,710,012) (9,373,412) Capitalized borrowing costs 33,109,819 9,321,354 6,435,646 Financial cost related companies (35,079,947) (31,304,382) (23,228,947) Financial cost by Law N°21,185 (1) (4,518,268) (19,062,333) — Other financial costs (12,576,656) (15,800,454) (7,578,184) (Loss) gain from indexed assets and liabilities, net 2,085,768 (2,982,268) (818,146) Foreign currency exchange differences (23,272,231) (10,412,110) (7,807,197) Total Finance Costs (148,595,234) (178,292,278) (130,809,532) Total Financial Results (112,434,774) (150,893,003) (110,875,064) (1) Relates to finance income and costs generated by the temporary electric power pricing stabilization mechanism for customers subject to price regulation, as established in Law No. 21,185 (see Note 9). (2) See Note 25. (3) See Note 26.2 b).
Summary of Effects on Exchange Differences and Application of Indexed Assets and Liabilities	For the years ended December 31, 2020 2019 2018 Gains (losses) from Indexed Assets and Liabilities (*) ThCh$ ThCh$ ThCh$ Cash and cash equivalents — 36,797 — Other non-financial assets — — 45,108 Trade and other receivables 2,212,324 1,410,408 1,197,498 Current tax assets and liabilities 1,026,963 2,557,465 3,424,644 Other financial liabilities (financial debt and derivative instruments) 980,933 (1,637,291) (1,714,216) Trade and other payables 241,532 16,939 15,145 Other provisions (196,777) — — Other non-financial liabilities (643) (1,688) — Sub total 4,264,332 2,382,630 2,968,179 Intangible assets other than goodwill 142 203 180 Property, plant and equipment 764,982 1,132,453 1,035,084 Deferred tax liabilities (548,505) — — Equity (2,434,384) (5,805,120) (3,743,959) Other Provision of Services (1,246) — (1,189,452) Energy Sales — (1,352,295) — Energy Purchases — 432 — Other variable supplies and services — — 21,503 Work for the Fixed Assets — 103,512 — Personal expenses 130,213 166,715 143,148 Other fixed operating expenses 108,226 23,714 147,975 Financial income (204,137) (367,059) (268,511) Financial expenses 6,145 732,547 67,707 Sub total Hyperinflation result (1) (2,178,564) (5,364,898) (3,786,325) Gains from indexed assets and liabilities, net 2,085,768 (2,982,268) (818,146) For the years ended December 31, 2020 2019 2018 Foreign Currency Exchange Differences (**) ThCh$ ThCh$ ThCh$ Cash and cash equivalents 10,110,166 (937,177) (415,962) Other financial assets 6,316,333 2,052,540 5,733,173 Other non-financial assets 6,086,388 (1,712,690) (534,401) Trade and other receivables (2) (24,504,740) 8,847,969 726,347 Current tax assets and liabilities (4,361,506) (1,633,471) (1,903,963) Other financial liabilities (financial debt and derivative instruments) (10,265,859) (8,147,939) (5,726,246) Trade and other payables (2) (5,755,302) (9,381,721) (5,379,210) Other non-financial liabilities (897,711) 500,379 (306,935) Total Foreign Currency Exchange Differences (23,272,231) (10,412,110) (7,807,197) (1) Corresponds to the financial effect derived from the application of IAS 29 “Financial Reporting in Hyperinflationary Economies” on the branch held by the Enel Generación Chile Group in Argentina (see Note 2.9). This includes the foreign currency translation difference due to the dollarization of trade receivables and payables in the amount of ThCh$(36,494,889) and ThCh$ 11,234,506 respectively, as a result of the temporary electric power pricing stabilization mechanism for customers subject to price regulation, as established in Law No. 21,185 (see Note 9

Information by Segment (Tables)

Information by Segment (Tables)	12 Months Ended
	Dec. 31, 2020
INFORMATION BY SEGMENT
Summary of Assets and Liabilities by Segment	Generation Distribution Holdings, eliminations and others Total 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ASSETS CURRENT ASSETS 581,661,790 941,262,837 282,024,842 289,393,932 162,714,564 (212,444,109) 1,026,401,196 1,018,212,660 Cash and cash equivalents 4,971,820 26,391,853 3,657,471 2,331,365 323,406,722 206,961,282 332,036,013 235,684,500 Other current financial assets 2,562,093 489,658 29,977 64,220 760,334 756,717 3,352,404 1,310,595 Other current non-financial assets 11,665,802 8,908,239 2,830,106 8,868,077 5,305,665 16,858,247 19,801,573 34,634,563 Trade and other current receivables 285,241,891 230,670,997 259,172,712 260,840,410 10,472,036 19,943,923 554,886,639 511,455,330 Current accounts receivable from related companies 232,991,789 587,067,775 4,269,460 10,115,510 (179,285,124) (529,001,152) 57,976,125 68,182,133 Inventories 18,163,284 34,705,515 3,397,415 3,150,943 1,749,330 1,815,792 23,310,029 39,672,250 Current tax assets 26,065,111 53,028,800 8,667,701 4,023,407 305,601 70,221,082 35,038,413 127,273,289 NON-CURRENT ASSETS 4,722,779,027 4,771,905,050 1,369,182,558 1,175,550,962 786,108,803 892,319,492 6,878,070,388 6,839,775,504 Other non-current financial assets 20,660,446 7,189,431 4 22,741 — 8,448 20,660,450 7,220,620 Other non-current non-financial assets 62,608,451 34,903,436 2,791,875 2,576,585 386,889 570,163 65,787,215 38,050,184 Trade and other non-current receivables 166,469,458 88,225,632 277,378,406 157,051,933 1,168,702 68,296,820 445,016,566 313,574,385 Non-Current accounts payable from related companies 141,649,129 80,926,788 — — (93,290,214) (46,519,646) 48,358,915 34,407,142 Investments accounted for using the equity method 9,551,139 7,928,588 — — 3,441,664 — 12,992,803 7,928,588 Intangible assets other than goodwill 94,464,506 76,077,944 65,335,352 51,360,795 5,314,663 4,839,854 165,114,521 132,278,593 Goodwill 32,682,252 33,135,272 2,240,478 2,240,478 880,782,639 881,977,224 915,705,369 917,352,974 Property, plant and equipment 4,037,877,000 4,370,419,860 1,015,249,248 957,752,454 (19,629,776) (23,696,200) 5,033,496,472 5,304,476,114 Investment property — — — — 7,421,940 6,795,155 7,421,940 6,795,155 Assets for right of use 50,373,648 52,155,733 5,117,436 3,640,103 11,108 47,674 55,502,192 55,843,510 Deferred tax assets 106,442,998 20,942,366 1,069,759 905,873 501,188 — 108,013,945 21,848,239 TOTAL ASSETS 5,304,440,817 5,713,167,887 1,651,207,400 1,464,944,894 948,823,367 679,875,383 7,904,471,584 7,857,988,164 Generation Distribution Holdings, eliminations and others Total 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 12-31-2020 12-31-2019 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ LIABILITIES AND EQUITY CURRENT LIABILITIES 903,590,885 844,513,549 335,412,469 317,248,207 (193,523,189) (120,461,904) 1,045,480,165 1,041,299,852 Other current financial liabilities 155,592,371 206,888,115 77,554 1 1,829,216 1,926,445 157,499,141 208,814,561 Current lease liabilities 5,495,257 5,039,971 1,505,677 738,782 6,777 63,262 7,007,711 5,842,015 Trade and other current payables 416,425,675 300,957,548 190,709,618 200,472,938 20,822,729 97,832,722 627,958,022 599,263,208 Current accounts payable to related companies 237,326,397 296,861,070 118,883,364 87,507,312 (226,155,799) (224,558,495) 130,053,962 159,809,887 Other current provisions 2,933,069 3,619,734 — — 501,735 446,231 3,434,804 4,065,965 Current tax liabilities 65,963,158 17,717,789 95,556 34,718 6,301,230 243,326 72,359,944 17,995,833 Other current non-financial liabilities 19,854,958 13,429,322 24,140,700 28,494,456 3,170,923 3,584,605 47,166,581 45,508,383 NON-CURRENT LIABILITIES 1,647,789,150 1,899,077,568 415,149,858 301,769,861 1,201,777,912 868,557,231 3,264,716,920 3,069,404,660 Other non-current financial liabilities 774,737,983 954,402,603 4 — 708,851,139 738,201,642 1,483,589,126 1,692,604,245 Non-current lease liabilities 41,147,046 44,572,348 3,704,860 2,993,326 5,901 — 44,857,807 47,565,674 Trade and other non-current payables 4,286,773 2,281,053 112,922,799 53,968,545 487 487 117,210,059 56,250,085 Non-current accounts payable to related companies 457,825,939 486,839,484 228,805,329 182,031,404 477,413,194 115,502,596 1,164,044,462 784,373,484 Other long-term provisions 194,653,912 160,006,401 15,587,759 11,853,881 — — 210,241,671 171,860,282 Deferred tax liabilities 152,083,137 231,156,234 20,212,892 19,818,625 (4,238,467) (1,690,218) 168,057,562 249,284,641 Non-current provisions for employee benefits 23,054,360 19,819,445 32,738,247 29,801,321 19,745,658 16,542,724 75,538,265 66,163,490 Other non-current non-financial liabilities — — 1,177,968 1,302,759 — — 1,177,968 1,302,759 EQUITY 2,753,060,782 2,969,576,770 900,645,073 845,926,826 (59,431,356) (68,219,944) 3,594,274,499 3,747,283,652 Equity attributable to Enel Chile 2,753,060,782 2,969,576,770 900,645,073 845,926,826 (59,431,356) (68,219,944) 3,351,915,790 3,484,697,986 Issued capital 1,403,737,121 1,185,731,351 230,137,980 230,137,980 2,248,228,369 2,466,234,139 3,882,103,470 3,882,103,470 Retained earnings 1,473,514,878 1,735,720,458 988,991,623 933,560,288 (715,068,696) (661,177,095) 1,747,437,805 2,008,103,651 Issuance premiums 85,511,492 85,511,492 354,220 354,220 (85,865,712) (85,865,712) — — Treasury shares in portfolio (252,632,367) — — — 252,632,367 — — — Other reserves 42,929,658 (37,386,531) (318,838,750) (318,125,662) (1,759,357,684) (1,787,411,276) (2,277,625,485) (2,405,509,135) Non-controlling interests — — — — — — 242,358,709 262,585,666 Total Liabilities and Equity 5,304,440,817 5,713,167,887 1,651,207,400 1,464,944,894 948,823,367 679,875,383 7,904,471,584 7,857,988,164
Summary of Comprehensive Income by Segment	Generation Distribution Holdings eliminations Total 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENTS OF COMPREHENSIVE INCOME (LOSS) REVENUES 1,577,422,263 1,726,611,508 1,580,653,088 1,382,068,220 1,412,871,738 1,263,224,072 (374,088,286) (368,648,886) (386,715,734) 2,585,402,197 2,770,834,360 2,457,161,426 Revenues 1,543,647,794 1,581,230,963 1,540,352,133 1,376,425,433 1,408,588,042 1,254,943,604 (371,688,910) (365,242,682) (384,935,278) 2,548,384,317 2,624,576,323 2,410,360,459 Energy sales 1,494,203,779 1,472,565,933 1,425,942,129 1,270,159,653 1,318,386,716 1,170,129,333 (383,626,832) (385,049,407) (393,993,374) 2,380,736,600 2,405,903,242 2,202,078,088 Other sales 38,825,239 97,870,470 103,779,801 6,601,069 9,365,186 16,411,425 13,444,564 16,878,136 3,154,157 58,870,872 124,113,792 123,345,383 Other services rendered 10,618,776 10,794,560 10,630,203 99,664,711 80,836,140 68,402,846 (1,506,642) 2,928,589 5,903,939 108,776,845 94,559,289 84,936,988 Other operating income 33,774,469 145,380,545 40,300,955 5,642,787 4,283,696 8,280,468 (2,399,376) (3,406,204) (1,780,456) 37,017,880 146,258,037 46,800,967 RAW MATERIALS AND CONSUMABLES USED (616,852,308) (678,187,609) (709,506,221) (1,116,324,483) (1,114,936,281) (972,499,918) 358,731,152 371,918,639 389,829,023 (1,374,445,639) (1,421,205,251) (1,292,177,116) Energy purchases (177,049,909) (160,044,206) (213,114,437) (1,060,494,642) (1,056,562,636) (926,385,346) 372,681,097 381,322,099 391,853,181 (864,863,454) (835,284,743) (747,646,602) Fuel consumption (231,176,490) (230,944,414) (231,028,169) — — — — — — (231,176,490) (230,944,414) (231,028,169) Transportation expenses (113,704,101) (169,062,680) (154,044,158) (23,694,571) (22,725,942) (9,816,883) (4,141,015) (5,060,166) (3,014,761) (141,539,687) (196,848,788) (166,875,802) Other miscellaneous supplies and services (94,921,808) (118,136,309) (111,319,457) (32,135,270) (35,647,703) (36,297,689) (9,808,930) (4,343,294) 990,603 (136,866,008) (158,127,306) (146,626,543) CONTRIBUTION MARGIN 960,569,955 1,048,423,899 871,146,867 265,743,737 297,935,457 290,724,154 (15,357,134) 3,269,753 3,113,289 1,210,956,558 1,349,629,109 1,164,984,310 Other work performed by the entity and capitalized 15,581,738 8,887,421 8,663,737 9,805,315 8,723,440 6,667,947 152,263 — 1,379,279 25,539,316 17,610,861 16,710,963 Employee benefits expense (65,564,485) (62,871,525) (61,991,737) (37,496,730) (34,828,194) (32,598,818) (34,165,533) (31,905,237) (28,539,779) (137,226,748) (129,604,956) (123,130,334) Other expenses (121,366,276) (120,522,841) (104,190,567) (79,580,559) (70,678,241) (64,179,201) 10,353,501 7,057,942 1,159,747 (190,593,334) (184,143,140) (167,210,021) GROSS OPERATING INCOME 789,220,932 873,916,954 713,628,300 158,471,763 201,152,462 200,614,082 (39,016,903) (21,577,542) (22,887,464) 908,675,792 1,053,491,874 891,354,918 Depreciation and amortization expense (185,479,080) (196,623,025) (179,901,682) (45,583,947) (40,705,580) (36,677,957) 1,106,008 701,218 1,392,339 (229,957,019) (236,627,387) (215,187,300) Impairment losses (reversal of impairment losses) recognized in profit or loss (698,453,039) (280,020,263) — — — — 646,598 (742,389) (779,825) (697,806,441) (280,762,652) (779,825) Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9. (1,305,341) (1,338,599) (106,264) (12,998,719) (8,153,419) (4,676,808) (863,647) (554,982) — (15,167,707) (10,047,000) (4,783,072) OPERATING INCOME (96,016,528) 395,935,067 533,620,354 99,889,097 152,293,463 159,259,317 (38,127,944) (22,173,695) (22,274,950) (34,255,375) 526,054,835 670,604,721 FINANCIAL RESULT (80,090,891) (101,324,905) (86,621,659) 5,929,058 5,232,127 6,088,801 (38,272,941) (54,800,225) (30,342,206) (112,434,774) (150,893,003) (110,875,064) Financial income 15,080,015 15,241,046 8,727,356 22,717,208 22,742,687 11,166,433 (1,636,763) (10,584,458) 40,679 36,160,460 27,399,275 19,934,468 Cash and cash equivalents 597,718 3,556,554 5,673,621 1,562,194 1,456,253 1,633,373 5,164,145 3,960,799 2,305,581 7,324,057 8,973,606 9,612,575 Other financial income 14,482,297 11,684,492 3,053,735 21,155,014 21,286,434 9,533,060 (6,800,908) (14,545,257) (2,264,902) 28,836,403 18,425,669 10,321,893 Financial costs (59,088,322) (111,219,566) (82,878,715) (17,696,544) (19,061,123) (6,724,490) (50,623,905) (34,617,211) (32,580,984) (127,408,771) (164,897,900) (122,184,189) Bank borrowings (7,112,931) (11,813,855) (9,269,535) (33,244) (40,508) (5,374) (4,855) (2,633,337) (11,426,865) (7,151,030) (14,487,700) (20,701,774) Secured and unsecured obligations (47,654,290) (45,714,879) (43,965,839) — — — (36,613,957) (36,103,685) (18,289,461) (84,268,247) (81,818,564) (62,255,300) Others (4,321,101) (53,690,832) (29,643,341) (17,663,300) (19,020,615) (6,719,116) (14,005,093) 4,119,811 (2,864,658) (35,989,494) (68,591,636) (39,227,115) Income from indexation units (703,130) (5,157,076) (2,480,291) 1,124,304 1,843,435 1,616,607 1,664,594 331,373 45,538 2,085,768 (2,982,268) (818,146) Foreign exchange profits (losses) (35,379,454) (189,309) (9,990,009) (215,910) (292,872) 30,251 12,323,133 (9,929,929) 2,152,561 (23,272,231) (10,412,110) (7,807,197) Share of profit (loss) of associates and joint ventures accounted for using the equity method 2,424,250 366,089 3,190,240 — — — 1,085,142 — — 3,509,392 366,089 3,190,240 Other gains (losses) 9,478,528 1,683,246 3,434,503 10,287 12 — — 109,943 (24,124) 9,488,815 1,793,201 3,410,379 Gain (loss) from other investments 94,490 152,557 409,954 10,287 12 — — 109,943 (24,124) 104,777 262,512 385,830 Gain (loss) from the sale of assets 9,384,038 1,530,689 3,024,549 — — — — — — 9,384,038 1,530,689 3,024,549 Profit (loss) before taxes (164,204,641) 296,659,497 453,623,438 105,828,442 157,525,602 165,348,118 (75,315,743) (76,863,977) (52,641,280) (133,691,942) 377,321,122 566,330,276 Income tax 97,419,625 (40,347,869) (113,783,941) (23,421,217) (38,748,555) (42,967,123) 7,306,699 17,868,520 3,268,545 81,305,107 (61,227,904) (153,482,519) PROFIT (LOSS) (66,785,016) 256,311,628 339,839,497 82,407,225 118,777,047 122,380,995 (68,009,044) (58,995,457) (49,372,735) (52,386,835) 316,093,218 412,847,757 — — — — — — — — — Profit (loss) attributable to (66,785,016) 256,311,628 339,839,497 82,407,225 118,777,047 122,380,995 (68,009,044) (58,995,457) (49,372,735) (52,386,835) 316,093,218 412,847,757 Profit (loss) attributable to owners of the parent — — — — , — — — — (50,860,313) 296,153,605 361,709,937 Profit (loss) attributable to non-controlling interests — — — — — — — — — (1,526,522) 19,939,613 51,137,820 Generation Distribution Holdings eliminations Total 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 12-31-2020 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENT OF CASH FLOWS Net cash flows from (used in) operating activities 551,979,917 754,113,794 638,607,494 111,689,249 50,246,845 117,692,384 92,197,032 (60,648,920) (20,774,356) 755,866,198 743,711,719 735,525,522 Net cash flows from (used in) investing activities (100,557,328) (426,038,012) (451,284,432) (111,939,127) (28,896,947) (123,070,452) (342,154,935) 143,403,148 (1,307,204,810) (554,651,390) (311,531,811) (1,881,559,694) Net cash flows from (used in) financing activities (469,832,875) (453,927,358) (249,051,150) 1,578,034 (23,901,991) (32,268,227) 340,585,507 37,393,661 1,247,896,253 (127,669,334) (440,435,688) 966,576,876

Guarantees with Third Parties_2

Guarantees with Third Parties, Contingent Assets and, Liabilities, and Other Commitments (Tables)	12 Months Ended
	Dec. 31, 2020
PROVISIONS
Summary of Indirect Guarantees	Debtor Outstanding balance as of Contract Maturity Creditor of Guarantee Company Relationship Type of Guarantee Currency 12-31-2020 12-31-2019 Bonds Series B (*) October 2028 Bondholders of Enel Américas’ Bonds Enel Américas Entities demerged from original debtor Enersis S.A. (codebtor Enel Chile S.A.) Codebtor UF 7,672,851 11,646,991 Credit agreement December 2020 Scotiabank Chile Enel Green Power Chile S.A. Subsidiary Guarantor USD - 112,882,048 Credit agreement November 2022 Pto. GDN BID Enel Green Power Chile S.A. Subsidiary Guarantor USD 21,368,491 22,592,723 Credit agreement December 2021 Scotiabank Chile Enel Green Power Chile S.A. Subsidiary Guarantor USD 106,811,188 113,069,511 Guarantee contract December 2027 Enel Finance International N.V. Enel Green Power Chile S.A. Subsidiary Guarantor USD 458,115,841 484,341,824 (*)Upon the demerger of the original issuer, Enersis (currently Enel Américas), and in accordance with the bond indenture, all entities arising from the demerger are liable for the debt, regardless of the fact that that the payment obligation remains in Enel Américas

Headcount (Tables)

Headcount (Tables)	12 Months Ended
	Dec. 31, 2020
HEADCOUNT
Summary of Number of Employees	Enel Chile's personnel, as of December 31, 2020 and 2019, is as follows: 8 12-31-2020 Country Managers Professionals Staff and Total Chile 55 2,025 117 2,197 Argentina — 5 17 22 Total 55 2,030 134 2,219 Average 54 2,010 138 2,202 12-31-2019 Country Managers Professionals Staff and Total Chile 56 1,915 139 2,110 Argentina — 6 17 23 Total 56 1,921 156 2,133 Average 58 1,887 159 2,104

Environment (Tables)

Environment (Tables)	12 Months Ended
	Dec. 31, 2020
ENVIRONMENT
Summary of Environmental Expenses	12-31-2020 12-31-2019 Disbursing Company Project Name Environmental Description Project status [Finished, in progress] Disbursement amount Capitalized amount Expense amount Future disbursement amount Estimated date of future disbursement Total disbursements Amount of prior period disbursement Pehuenche PEHUENCHE CENTRAL Waste Management In progress 13,128 — 13,128 19,298 12-31-2021 32,426 3,165 Environmental Sanitation In progress 3,528 — 3,528 5,334 12-31-2021 8,862 1,988 Materials Environment In progress 4,993 — 4,993 24,720 12-31-2021 29,713 9,061 Campaigns and Studies In progress 4,235 — 4,235 6,180 12-31-2021 10,415 — Enel Distribución Chile S.A. VEGETATION CONTROL IN AT NETWORKS It consists of cutting branches until reaching the safety conditions that the foliage must be left with respect to the drivers. Completed 305,701 — 305,701 — 12-31-2020 305,701 2,600 This activity contemplates the maintenance of the band of easement of high voltage lines between 34,5 y 500kv. Completed 303,873 — 303,873 — 12-31-2020 303,873 67,291 VEGETATION CONTROL IN MT/BT Pruning of trees near the media network and low voltage. Completed 3,296,066 — 3,296,066 — 12-31-2020 3,296,066 3,507,502 IMPROVEMENTS IN THE MT NETWORK Replacement underground transformers by Technical Standard (PCB) Completed 91,353 91,353 — — 12-31-2020 91,353 170,077 REPLACE TRAFOS TRIFAS MEJ QUALITY BT This project corresponds to: Completed 3,649,294 3,649,294 — — 12-31-2020 3,649,294 1,168,343 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Completed 340,704 — 340,704 — 12-31-2020 340,704 64,737 RESPEL MANAGEMENT Hazardous waste removal and treatment management Completed 19,122 — 19,122 — 12-31-2020 19,122 103,847 SEC STANDARDIZATION PROJECT (CAPEX) Maintenance of trees, SSEE and removal of weeds, debris and garbage, exterior perimeter. Completed 1,774,155 1,774,155 — — 12-31-2020 1,774,155 ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in the Metropolitan Park. Completed 1,374 — 1,374 — 12-31-2020 1,374 2,337 OIL ANALYSIS AT POWER TD (OPEX) The waste material was removed and transferred to a dump from a Substation. Completed 32,096 — 32,096 — 12-31-2020 32,096 — Enel Generación Chile S.A. ENVIRONMENTAL EXPENSES CC.CC. The main expenses incurred are: Operation and maintenance, monitoring air quality and meteorological stations, Environmental audit monitoring network once a year, Annual CEMS Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Isokinetic Measurements, SGI Works (NC objective, inspections, audits and supervision) ISO 14001, OHSAS certification, CEMS operation and maintenance service. In progress 595,987 95,976 500,011 599,144 12-31-2021 1,195,131 2,307,825 ENVIRONMENTAL EXPENSES CC.TT. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 2,048,635 158,028 1,890,607 1,520,333 12-31-2021 3,568,968 7,151,486 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric plants (C.H.) In progress 263,737 — 263,737 — 12-31-2020 263,737 759,980 Enel Green Power Chile S.A. Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 84,113 — 84,113 148,447 12-31-2021 232,560 33,841 Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 46,957 — 46,957 104,448 12-31-2021 151,405 36,175 Water Analysis Monitoring and analysis of drinking water and sewage In progress — — 35,266 44,588 12-31-2021 — — Rent/Vehicle Expenses Vehicle rental for environmental trips (field visits / Plants) In progress 51,716 — 51,716 66,741 12-31-2021 118,457 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 189,321 — 189,321 355,550 12-31-2021 544,871 147,392 Technical Counterpart Environmental Studies Technical Counterpart Environmental Studies In progress — — — 5,287 12-31-2021 5,287 — Environmental Materials Buy environmental materials (containers, spill kit, others) In progress 32,032 — 32,032 40,578 12-31-2021 72,610 4,822 Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 8,066 — 8,066 31,591 12-31-2021 39,657 17,629 Outsourced Services Other services (contracts with third parties) In progress 222,291 — 222,291 297,167 12-31-2021 519,458 53,970 Travel Environment Tickets - accommodation and viatics for site visit in facilities In progress 56,820 — 56,820 85,150 12-31-2021 140,368 — Geotérmica del Norte S.A. Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 21,992 — 21,992 32,918 12-31-2021 54,910 — Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 6,500 — 6,500 14,319 12-31-2021 20,819 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 313,280 — 313,280 339,170 12-31-2021 652,450 — Environmental Materials Buy environmental materials (containers, spill kit, others) In progress 91 — 91 3,559 12-31-2021 3,650 — Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 4,816 — 4,816 1,324 12-31-2021 6,140 — Parque Eólico Talinay Oriente S.A. Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 13,064 — 13,064 18,580 12-31-2021 31,644 11,865 Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 6,939 — 6,939 4,109 12-31-2021 11,048 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 76,595 — 76,595 — 12-31-2021 76,595 63,666 Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 2,087 — 2,087 — 12-31-2021 2,087 1,738 Almeyda Solar SpA Waste management Contracts for the removal of hazardous and non-hazardous waste, and removal of household waste. In progress 39,521 — 39,521 31,508 12-31-2021 71,029 37,904 Environmental Sanitation Contracts for vector control, deratization, disinsection. In progress 33,992 — 33,992 36,542 12-31-2021 70,534 33,467 Water Analysis Monitoring and analysis of drinking water and sewage In progress — — — 24,435 12-31-2020 24,435 — Campaigns and Studies Contracts for Environmental Monitoring (Collision of Birds- Flora and Fauna- Archeology, others) In progress 63,736 — 63,736 64,160 12-31-2021 127,896 121,506 Environmental Materials Buy environmental materials (containers, spill kit, others) In progress 16,663 — 16,663 28,702 12-31-2021 45,365 394 Sewage Treatment Plant Contract for removal and cleaning of pits and sewage In progress 8,149 — 8,149 12,795 12-31-2021 20,944 17,419 Total 14,046,722 5,768,806 8,313,182 3,966,677 17,967,209 15,902,027 12-31-2019 Disbursing Company Project Name Environmental Description Project status [Finished, in progress] Disbursement amount Capitalized amount Expense amount Future disbursement amount Estimated date of future disbursement Total disbursements Pehuenche PEHUENCHE CENTRAL Waste Management In progress 3,165 - 3,165 - - 3,165 Environmental Sanitation In progress 1,988 - 1,988 - - 1,988 CURILLINQUE CENTRAL Campaigns and Studies In progress 9,061 - 9,061 - - 9,061 Environmental Sanitation In progress 882 - 882 - - 882 LOMA ALTA CENTRAL Environmental Sanitation In progress 882 - 882 - - 882 Enel Distribución Chile S.A. CHANGE OF TRAD X CALPE NETWORK Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 1,476,780 1,476,780 - - 12-31-2019 1,476,780 VEGETATION CONTROL IN AT NETWORKS It consists of cutting branches until reaching the safety conditions that the foliage must be left with respect to the drivers. Completed 2,600 - 2,600 - 12-31-2019 2,600 This activity contemplates the maintenance of the band of easement of high voltage lines between 34,5 y 500kv. Completed 67,291 - 67,291 - 12-31-2019 67,291 VEGETATION CONTROL IN MT/BT Pruning of trees near the media network and low voltage. Completed 3,507,502 - 3,507,502 - 12-31-2019 3,507,502 The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Completed 64,737 - 64,737 - 12-31-2019 64,737 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of weeding and weed control in electrical power substation enclosures in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. Completed 19,706 - 19,706 - 12-31-2019 19,706 The removal and transfer to waste dump from a Substation was carried out. Completed 21,719 - 21,719 - 12-31-2019 21,719 MANEJO AMBIENTAL Environmental Management of Reforestation in Metropolitan Park. Completed 2,337 - 2,337 - 12-31-2019 2,337 MEJORAS EN LA RED MT Replacement of MT network with protected cable In progress 170,077 170,077 - - 12-31-2019 170,077 GESTIÓN DE RESPEL Hazardous waste removal and treatment management Completed 103,847 103,847 - 12-31-2019 103,847 REPLACE TRIFAS TRIFAS MEJ QUALITY BT Replacement of transformers with chargeability problems In progress 1,168,343 1,168,343 - - 12-31-2019 1,168,343 REPLACEMENT TD DAE CONCENTRICA X TD. TRIF. RED CALPE Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 492,260 492,260 - - 12-31-2019 492,260 Enel Generación Chile S.A. ENVIRONMENTAL MONITORING Environmental Monitoring Contract with SK Ecology, operation and maintenance CEMS. In progress 576,519 - 576,519 - - 576,519 CEMS STANDARDIZATION Warehouse standardization, environmental management, regularization of environmental impact assessment (EIA) In progress 207,966 207,966 - - - 207,966 HYDRAULIC CENTRALS Waste management and sanitation In progress 2,315 - 2,315 - - 2,315 ENVIRONMENTAL EXPENSES CC.CC. The main expenses incurred are: Bocamina U1-2: Operation and maintenance, monitoring air quality and meteorological stations, Environmental audit monitoring network once a year, CEMS Annual Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Measurements Isokineticas, Trabajos SGI (NC objective, inspections, audits and supervision) ISO 14001, OHSAS certification, CEMS operation and maintenance service. In progress 1,452,158 855,667 596,491 855,667 12-31-2020 2,307,825 ENVIRONMENTAL EXPENSES CC.TT. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 5,387,657 1,763,829 3,623,828 1,763,829 12-31-2020 7,151,486 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric plants (C.H.) In progress 339,103 - 339,103 420,877 12-31-2020 759,980 CENTRAL QUINTERO CEMS Central Quinteros In progress 458,001 110,923 347,078 37,983 12-31-2020 495,984 Enel Green Power del Sur Spa. Carrera Pinto Waste Management Completed 4,432 - 4,432 - - 4,432 Environmental Sanitation Completed 6,466 - 6,466 - - 6,466 Wastewater Treatment Plant Completed 4,436 - 4,436 - - 4,436 Finis Terrae Waste Management Completed 10,954 - 10,954 - - 10,954 Environmental Sanitation Completed 7,674 - 7,674 - - 7,674 Wastewater Treatment Plant Completed 2,154 - 2,154 - - 2,154 La Silla Environmental Sanitation Completed 2,902 - 2,902 - - 2,902 Los Buenos Aires Waste Management Completed 1,509 - 1,509 - - 1,509 Campaigns and Studies Completed 20,613 - 20,613 - - 20,613 Environmental Sanitation Completed 3,989 - 3,989 - - 3,989 Wastewater Treatment Plant Completed 882 - 882 - - 882 Materials Environment Completed 5,589 - 5,589 - - 5,589 Pampa Norte Waste Management Completed 5,098 - 5,098 - - 5,098 Environmental Sanitation Completed 6,618 - 6,618 - - 6,618 Wastewater Treatment Plant Completed 3,459 - 3,459 - - 3,459 Renaico Waste Management Completed 2,281 - 2,281 - - 2,281 Campaigns and Studies Completed 83,820 - 83,820 - - 83,820 Environmental Sanitation Completed 5,226 - 5,226 - - 5,226 Wastewater Treatment Plant Completed 982 - 982 - - 982 Materials Environment Completed 4,822 - 4,822 - - 4,822 Outsourced Services Completed 53,970 - 53,970 - - 53,970 Sierra Gorda Waste Management Completed 13,999 - 13,999 - - 13,999 Campaigns and Studies Completed 42,959 - 42,959 - - 42,959 Environmental Sanitation Completed 3,300 - 3,300 - - 3,300 Wastewater Treatment Plant Completed 127 - 127 - - 127 Empresa Electrica Panguipulli S.A. Chañares Waste Management Completed 1,613 - 1,613 - - 1,613 Campaigns and Studies Completed 7,981 - 7,981 - - 7,981 Environmental Sanitation Completed 5,262 - 5,262 - - 5,262 Wastewater Treatment Plant Completed 5,591 - 5,591 - - 5,591 Lalackama Waste Management Completed 1,678 - 1,678 - - 1,678 Environmental Sanitation Completed 7,091 - 7,091 - - 7,091 Wastewater Treatment Plant Completed 3,273 - 3,273 - - 3,273 Pilmaiquen Waste Management Completed 1,450 - 1,450 - - 1,450 Environmental Sanitation Completed 6,822 - 6,822 - - 6,822 Pullinque Waste Management Completed 785 - 785 - - 785 Campaigns and Studies Completed 2,627 - 2,627 - - 2,627 Environmental Sanitation Completed 4,129 - 4,129 - - 4,129 Materials Environment Completed 394 - 394 - - 394 Talinay Poniente Campaigns and Studies Completed 46,026 - 46,026 - - 46,026 Parque Eolico Tal Tal S.A. Taltal Waste Management Completed 10,745 - 10,745 - - 10,745 Campaigns and Studies Completed 44,656 - 44,656 - - 44,656 Environmental Sanitation Completed 2,476 - 2,476 - - 2,476 Wastewater Treatment Plant Completed 2,515 - 2,515 - - 2,515 Parque Eolico Valle De Los Vientos S.A. Valle de los Vientos Waste Management Completed 11,546 - 11,546 - - 11,546 Campaigns and Studies Completed 20,216 - 20,216 - - 20,216 Environmental Sanitation Completed 2,471 - 2,471 - - 2,471 Parque Eolico Talinay Oriente S.A. Talinay Oriente Waste Management Completed 11,865 - 11,865 - - 11,865 Campaigns and Studies Completed 63,666 - 63,666 - - 63,666 Environmental Sanitation Completed 9,419 - 9,419 - - 9,419 Wastewater Treatment Plant Completed 1,738 - 1,738 - - 1,738 Almeyda Solar Spa Diego de Almagro Waste Management Completed 10,087 - 10,087 - - 10,087 Environmental Sanitation Completed 5,216 - 5,216 - - 5,216 Wastewater Treatment Plant Completed 6,040 - 6,040 - - 6,040 Total 12-31-2018 Disbursing Company Project Name Environmental Description Project status [Finished, in progress] Disbursement amount Capitalized amount Expense amount Future disbursement amount Estimated date of future disbursement Total disbursements Pehuenche ENVIRONMENTAL EXPENSES HYDROELECTRIC POWER PLANTS C.H. Pehuenche E E Pehuenche S.A. Supply of flow measurement equipment. In progress 48,574 48,574 - - 48,574 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 62,560 - 62,560 - - 62,560 Enel Distribución Chile S.A. VEGETATION CONTROL IN AT NETWORKS It consists of cutting branches until reaching the safety conditions that the foliage must be left with respect to the drivers. In progress 134,394 - 134,394 19,654 12-31-2018 154,048 Tree pruning near the medium voltage network. In progress 5,790,042 2,472,768 3,317,274 502,599 03-31-2019 6,292,641 RESPEL MANAGEMENT Hazardous waste management. Completed 1,780 - 1,780 - 06-30-2018 1,780 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Completed 15,383 - 15,383 36,633 12-31-2018 52,016 The service consists of weeding and weed control in electrical power substation enclosures in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. En proceso 46,339 - 46,339 568 03-31-2018 46,907 ENVIRONMENTAL PERMITS Environmental Impact Statement: 1) New Lampa Sectioning Substation and 2) Ochagavia - Florida Line, Sanjon La Aguada section. In progress 1,767 1,767 - 5,203 03-31-2019 6,970 VEGETATION CONTROL IN MT / BT NETWORKS Improvement in the traditional network by calpe (pre-assembled aluminum cable) In progress 19,416 19,416 - 373,059 03-31-2019 392,475 IMPROVEMENTS IN THE MT NETWORK Replacement of MT bare network by shielded cable In progress 158,086 158,086 - 18,056 03-31-2019 176,142 CHANGE OF NETWORK TRAD X CALPE Replacement of traditional network by Calpe (Pre-assembled aluminum cable) BT In progress 851,792 851,792 - 530,712 03-31-2019 1,382,504 REPLACEMENT TD DAE CONCENTRICA X TD. TRIF. RED CALPE Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 712,455 712,455 - 295,961 03-31-2019 1,008,416 REPLACEMENT OF TRAFOS TRIFAS QUALITY BT Replacement of transformers with chargeability problems In progress 1,288,155 1,288,155 - 1,353,909 03-31-2019 2,642,064 ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in Cerro Chena and Metropolitan Park. In progress 5,831 - 5,831 803 03-31-2019 6,634 Asbestos removal from underground cables Removal of asbestos flame retardant tape from the MT underground network. In progress 119,277 03-31-2019 383,914 Enel Generación Chile S.A. ENVIRONMENTAL MONITORING Environmental Monitoring Contract with SK Ecology, operation and maintenance CEMS In progress 797,543 - 797,543 - - 797,543 CEMS STANDARDIZATION Winery standardization, environmental management, environmental impact assessment regularization (EIA) In progress 645,302 645,302 - - - 645,302 HYDRAULIC CENTRALS Waste Management e higienización In progress 11,567 - 11,567 - - 11,567 ENVIRONMENTAL EXPENSES CC.TT. The main expenses incurred are: Bocamina U1-2: Operation and maintenance, monitoring air quality and meteorological stations, Environmental audit monitoring network once a year, CEMS Annual Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Measurements Isokineticas, Trabajos SGI (NC objective, inspections, audits and supervision) ISO 14001, OHSAS certification, CEMS operation and maintenance service. In progress 2,102,056 - 2,102,056 - - 2,102,056 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 2,867,523 - 2,867,523 - - 2,867,523 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric plants (C.H.) In progress 183,156 - 183,156 - - 183,156 C.H. RALCO Ralco Plan: Reforestation according to an agreement with the Universidad Católica and electrification of homes in Ayin Maipú. In progress 4,542,216 4,542,216 - - - 4,542,216 CENTRAL QUINTERO CEMS Central Quinteros In progress 417,194 417,194 - - - 417,194 Total

Summarized Financial Informatio

Summarized Financial Information of Subsidiaries (Tables)	12 Months Ended
	Dec. 31, 2020
FINANCIAL INFORMATION OF SUBSIDIARIES, SUMMARIZED
Summary of Financial Information on Subsidiaries	As of December 31, 2020, 2019 and 2018, summarized financial information of the Company’s principal consolidated subsidiaries prepared under IFRS is as follows: 12-31-2020 Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Financial Income Income tax Profit (Loss) Other Comprehensive Income Total Comprehensive Income Statements ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Grupo Enel Distribución Chile Consolidated 582,076,850 1,069,130,548 1,651,207,398 394,984,535 355,577,789 900,645,074 1,651,207,398 1,382,068,218 (1,116,324,483) 265,743,735 158,471,761 99,889,095 5,929,058 105,828,440 (23,421,217) 82,407,223 (3,032,588) 79,374,635 Enel Generación Chile Separate 450,585,522 2,568,790,911 3,019,376,433 346,738,652 962,018,025 1,710,619,756 3,019,376,433 1,454,983,823 (906,062,618) 548,921,205 421,458,046 (355,272,815) (47,019,373) (311,920,879) 154,534,331 (157,386,549) 97,628,933 (59,757,615) Enel Distribución Chile Separate 577,456,051 1,060,265,626 1,637,721,677 377,127,464 355,408,175 905,186,038 1,637,721,677 1,378,024,639 (1,115,217,690) 262,806,949 156,516,439 99,162,164 5,643,080 104,815,531 (23,518,908) 81,296,623 (3,031,870) 78,264,753 Empresa Eléctrica Pehuenche S.A. Separate 57,648,247 165,957,367 223,605,614 43,582,095 42,466,077 137,557,442 223,605,614 162,555,069 (29,660,883) 132,894,186 126,117,737 118,664,949 537,780 119,202,729 (32,100,661) 87,102,068 — 87,102,068 Enel Green Power Chile Ltda. Separate — — — — — — — 2,643,361 — 2,643,361 656,694 443,065 (728,828) (285,763) (27,623) (313,386) 32,849,632 32,536,246 Empresa Electrica Panguipulli S.A. Separate — — — — — — — 36,961,169 (1,553,242) 35,407,927 30,644,413 17,824,133 (2,975,352) 14,848,781 (1,094,018) 13,754,763 3,300,577 17,055,341 Geotermica del Norte S.A. Separate 6,236,103 400,007,251 406,243,354 47,175,660 322,246 358,745,448 406,243,354 29,621,783 (1,987,867) 27,633,916 22,284,312 4,542,775 (4,106) 4,538,668 (350,271) 4,188,397 (20,985,401) (16,797,004) Parque Eolico Talinay Oriente S.A. Separate 80,718,677 81,224,769 161,943,446 3,322,615 24,923,743 133,697,088 161,943,446 13,327,199 (215,507) 13,111,692 10,119,202 2,877,967 569,821 3,447,787 (1,028,866) 2,418,922 (7,863,429) (5,444,508) Enel Green Power Chile S.A. Separate 48,915,258 1,536,057,410 1,584,972,668 337,590,586 542,949,053 704,433,029 1,584,972,668 176,960,820 (30,028,125) 146,932,695 119,153,489 72,729,793 (24,394,047) 48,335,747 (14,300,689) 34,035,057 (61,492,284) (27,457,227) Almeyda Solar S.P.A Separate 16,915,219 461,620,519 478,535,738 204,561,234 72,286,638 201,687,866 478,535,738 52,290,734 (2,463,593) 49,827,141 41,553,826 24,434,638 (7,386,090) 17,048,548 (4,556,211) 12,492,337 (21,883,149) (9,390,812) Grupo Enel Green Power Consolidated 139,617,642 2,097,626,417 2,237,244,059 579,459,760 644,053,803 1,013,730,496 2,237,244,059 297,348,087 (12,123,965) 285,224,122 241,778,194 140,591,339 (33,609,299) 106,911,680 (25,014,045) 81,897,635 (63,316,482) 18,581,153 Grupo Enel Generación Chile Consolidated 465,808,355 2,625,152,610 3,090,960,965 347,895,331 1,003,735,347 1,739,330,287 3,090,960,965 1,490,102,269 (811,503,735) 678,598,534 547,442,737 (236,607,867) (46,481,593) (271,116,321) 122,433,670 -148682651 97,437,499 (51,245,152) 12-31-2019 Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Financial Income Income tax Profit (Loss) Other Comprehensive Income Total Comprehensive Income Statements ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Grupo Enel Distribución Chile Consolidated 289,393,933 1,175,550,962 1,464,944,895 317,248,208 301,769,861 845,926,826 1,464,944,895 1,412,871,737 (1,114,936,281) 297,935,456 201,152,462 152,293,464 5,232,127 157,525,602 (38,748,555) 118,777,047 (5,268,320) 113,508,727 Enel Generación Chile Separate 583,721,624 2,934,658,635 3,518,380,259 449,869,095 1,081,712,205 1,986,798,959 3,518,380,259 1,566,647,603 (1,015,974,072) 550,673,531 438,227,197 273,796,017 (61,735,905) 378,925,840 (47,979,392) 330,946,448 (51,590,095) 279,356,353 Enel Distribución Chile Separate 281,307,184 1,166,614,368 1,447,921,552 293,190,807 301,606,886 853,123,859 1,447,921,552 1,409,434,510 (1,113,958,943) 295,475,567 200,130,596 151,879,931 4,770,147 156,650,077 (38,583,882) 118,066,195 (5,258,044) 112,808,151 Empresa Eléctrica Pehuenche S.A. Separate 40,913,391 172,823,608 213,736,999 32,304,951 44,330,262 137,101,786 213,736,999 147,472,130 (19,725,956) 127,746,174 121,631,813 114,117,571 2,230,250 116,442,545 (31,554,368) 84,888,177 — 84,888,177 Enel Green Power Chile Ltda. Separate 93,176,241 728,572,966 821,749,207 148,584,958 26,709,820 646,454,429 821,749,207 17,470,331 (5,891) 17,464,440 2,941,543 1,770,750 (3,819,658) 4,271,982 789,773 5,061,755 47,305,179 52,366,934 Empresa Electrica Panguipulli S.A. Separate 11,883,401 268,737,935 280,621,336 35,237,664 152,717,912 92,665,760 280,621,336 65,392,897 (10,089,283) 55,303,614 45,295,840 25,634,374 (7,544,701) 18,091,741 (3,984,287) 14,107,454 4,145,983 18,253,437 Geotermica del Norte S.A. Separate 21,392,710 389,334,650 410,727,360 34,868,730 316,179 375,542,451 410,727,360 25,736,468 (4,666,032) 21,070,436 16,240,808 985,760 (2,431,778) (1,446,018) (268,161) (1,714,179) 28,824,398 27,110,219 Parque Eolico Talinay Oriente S.A. Separate 75,985,899 91,924,981 167,910,880 3,479,000 25,290,284 139,141,596 167,910,880 12,662,715 (891,215) 11,771,500 8,846,598 1,956,884 1,076,843 3,033,727 (812,645) 2,221,082 10,644,581 12,865,663 Enel Green Power Chile S.A. Separate 190,106,543 732,488,168 922,594,711 54,033,958 534,433,995 334,126,758 922,594,711 144,036,603 (25,778,573) 118,258,030 99,202,697 66,657,147 (23,438,689) 43,218,457 (9,496,203) 33,722,254 25,195,173 58,917,427 Grupo Enel Green Power Consolidated 371,759,514 1,775,791,317 2,147,550,831 377,911,553 773,916,901 995,722,377 2,147,550,831 273,239,617 (26,298,083) 246,941,534 204,174,344 115,016,205 (42,962,825) 71,875,897 (16,890,333) 54,985,564 122,991,836 177,977,400 Grupo Enel Generación Chile Consolidated 591,085,044 2,996,113,733 3,587,198,777 488,183,716 1,125,160,667 1,973,854,394 3,587,198,777 1,638,374,434 (834,936,802) 803,437,632 669,742,608 280,918,860 (58,362,079) 224,783,599 (23,457,536) 201,326,063 (55,986,126) 145,339,937 Grupo GasAtacama Chile S.A. Consolidated - - - - - — — 186,194,326 (54,061,747) 132,132,579 110,016,642 (107,102,417) 1,143,576 (103,917,448) 56,076,224 -47841224 (4,396,031) (52,237,255) 12-31-2018 Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Financial Income Income tax Profit (Loss) Other Comprehensive Income Total Comprehensive Income Statements ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Grupo Enel Distribución Chile Consolidated 296,453,470 982,926,699 1,279,380,169 450,182,594 63,065,351 766,132,224 1,279,380,169 1,263,224,070 (972,499,916) 290,724,154 200,614,083 159,259,319 6,088,801 165,348,120 (42,967,123) 122,380,997 (600,422) 121,780,574 Enel Generación Chile Separate 548,220,314 2,725,004,288 3,273,224,602 569,928,285 938,139,970 1,765,156,347 3,273,224,602 1,454,348,386 (1,051,644,602) 402,703,785 300,148,133 226,154,177 (49,980,539) 378,187,852 (42,255,124) 335,932,728 (101,720,204) 234,212,523 Enel Distribución Chile Separate 288,632,068 975,441,251 1,264,073,319 424,550,547 62,721,352 776,801,421 1,264,073,320 1,259,689,827 (971,366,398) 288,323,429 199,676,810 159,625,438 5,418,883 165,044,321 (43,812,619) 121,231,702 (598,985) 120,632,717 Empresa Eléctrica Pehuenche S.A. Separate 51,279,432 179,693,183 230,972,615 44,459,384 46,238,192 140,275,039 230,972,615 162,768,188 (21,539,174) 141,229,015 135,558,558 128,068,159 224,543 128,348,399 (34,669,191) 93,679,208 — 93,679,208 Enel Green Power Chile Ltda. Separate 162,710,963 669,741,595 832,452,558 113,123,832 125,240,940 594,087,786 832,452,558 12,831,131 (15,655) 12,815,476 2,521,606 1,702,927 (5,337,680) 71,323,446 1,601,922 72,925,368 71,701,018 144,626,386 Empresa Electrica Panguipulli S.A. Separate 16,052,462 255,481,676 271,534,138 59,681,465 131,671,924 80,180,749 271,534,138 45,097,744 (5,320,421) 39,777,324 32,476,777 18,680,884 (1,954,238) 16,726,646 (2,647,884) 14,078,762 (3,643,974) 10,434,788 Geotermica del Norte S.A. Separate 21,765,295 347,871,452 369,636,747 20,910,840 293,675 348,432,232 369,636,747 17,023,794 (2,109,769) 14,914,025 13,168,978 2,001,882 (3,676,151) (1,674,269) 454,355 (1,219,914) 45,243,420 44,023,506 Parque Eolico Talinay Oriente S.A. Separate 63,831,605 87,493,829 151,325,434 6,173,259 18,876,242 126,275,934 151,325,435 10,058,036 (2,434,415) 7,623,621 5,310,400 1,014,857 1,312,902 2,327,759 (613,097) 1,714,661 16,552,523 18,267,184 Enel Green Power del Sur Separate 129,849,852 655,431,547 785,281,399 44,078,091 467,399,245 273,804,063 785,281,399 94,473,391 (21,024,045) 73,449,347 60,053,812 37,537,228 (24,991,814) 12,545,413 (3,455,173) 9,090,240 34,497,623 43,587,863 Grupo Enel Green Power Consolidated 344,469,181 1,628,444,820 1,972,914,001 334,639,971 768,719,376 869,554,654 1,972,914,001 183,008,879 (22,330,367) 160,678,512 131,378,740 69,236,957 (38,674,306) 30,471,438 (8,837,176) 21,634,262 173,923,954 195,558,216 Grupo Enel Generación Chile Consolidated 672,467,353 2,996,760,726 3,669,228,079 593,881,208 1,077,855,824 1,997,491,047 3,669,228,079 1,529,364,081 (818,284,050) 711,080,031 582,249,559 464,383,396 (47,947,351) 423,152,001 (104,946,765) 318,205,236 (106,994,091) 211,211,145 Grupo GasAtacama Chile S.A. Consolidated 154,726,337 601,914,918 756,641,255 61,155,091 94,466,222 601,019,942 756,641,255 271,433,789 (94,746,408) 176,687,381 146,123,452 109,465,013 1,808,644 115,039,230 (27,946,019) (5,273,886) 81,819,325

Appendix 1 Details of Assets _2

Appendix 1 Details of Assets and Liabilities in Foreign Currency (Tables)	12 Months Ended
	Dec. 31, 2020
APPENDIX 1 DETAILS OF ASSETS AND LIABILITIES IN FOREIGN CURRENCY
Summary of Assets and Liabilities Denominated in Foreign Currencies	12-31-2020 ASSETS U.F. Chilean Peso U.S. dollar Euro Colombian Peso Angentine Peso Brazilian Real Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT ASSETS Cash and cash equivalents - 300,357,149 27,617,370 83,819 - 3,977,675 - 332,036,013 Other current financial assets 707,749 2,614,678 29,977 - - - - 3,352,404 Other current non-financial assets 1,117,707 15,358,682 2,189,622 293,128 - 842,434 - 19,801,573 Trade and other current receivables 1,663,044 544,736,403 7,713,459 773,733 - - - 554,886,639 Current accounts receivable from related parties - 3,106,532 29,404,983 25,464,610 - - - 57,976,125 Inventories 48,280 17,978,682 4,042,276 1,234,785 - 6,006 - 23,310,029 Current tax assets - 35,025,069 - - - 13,344 - 35,038,413 TOTAL CURRENT ASSETS 3,536,780 919,177,195 70,997,687 27,850,075 - 4,839,459 - 1,026,401,196 NON-CURRENT ASSETS Other non-current financial assets - 18,745,200 1,373,356 541,894 - - - 20,660,450 Other non-current non-financial assets 58,216 65,728,999 - - - - - 65,787,215 Trade and other non-current receivables 8,745,386 77,106,644 359,154,278 - - 10,258 - 445,016,566 Non-current accounts receivable from related parties - - 48,358,915 - - - 48,358,915 Investments accounted for using the equity method - 7,451,193 5,171,047 - - 370,563 - 12,992,803 Intangible assets other than goodwill - 115,140,459 49,736,710 - - 237,352 - 165,114,521 Goodwill - 887,257,655 28,447,714 - - - - 915,705,369 Property, plant and equipment 1,045,376,735 3,102,444,105 871,743,874 - - 13,931,758 - 5,033,496,472 Investment property - 7,421,940 - - - - - 7,421,940 Right-of-use asset 19,262,028 27,760,561 1,634,255 6,845,348 - - - 55,502,192 Deferred tax assets - 98,353,360 9,660,585 - - - - 108,013,945 TOTAL NON CURRENT ASSETS 1,073,442,365 4,407,410,116 1,375,280,734 7,387,242 - 14,549,931 - 6,878,070,388 TOTAL ASSETS 1,076,979,145 5,326,587,311 1,446,278,421 35,237,317 - 19,389,390 - 7,904,471,584 12-31-2019 ASSETS UF Chilean Peso U.S. dollar Euro Colombian Peso Angentine Peso Brazilian Real Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT ASSETS Cash and cash equivalents - 209,818,277 18,115,385 654,319 - 7,096,519 - 235,684,500 Other current financial assets 707,749 280,529 322,317 - - - - 1,310,595 Other current non-financial assets - 34,098,847 535,716 - - - - 34,634,563 Trade and other current receivables - 500,407,168 10,964,072 84,090 - - - 511,455,330 Current accounts receivable from related parties - 3,419,722 40,603,423 22,859,682 833,336 - 465,970 68,182,133 Inventories 53,034 34,959,079 4,212,534 447,603 - - - 39,672,250 Current tax assets - 117,532,553 9,740,736 - - - - 127,273,289 TOTAL CURRENT ASSETS 760,783 900,516,175 84,494,183 24,045,694 833,336 7,096,519 465,970 1,018,212,660 NON-CURRENT ASSETS Other non-current financial assets - 7,220,618 2 - - - - 7,220,620 Other non-current non-financial assets 56,950 37,993,234 - - - - - 38,050,184 Trade and other non-current receivables - 146,276,706 167,297,679 - - - - 313,574,385 Non-current accounts receivable from related parties - - 34,407,142 - - - - 34,407,142 Investments accounted for using the equity method - 7,928,588 - - - - - 7,928,588 Intangible assets other than goodwill - 86,594,286 45,684,307 - - - - 132,278,593 Goodwill - 909,078,058 8,274,916 - - - - 917,352,974 Property, plant and equipment 35,346,435 3,623,068,833 1,638,296,993 7,763,853 - - - 5,304,476,114 Investment property - 6,795,155 - - - - - 6,795,155 Right-of-use asset 27,741,230 19,795,447 - 8,306,833 - - - 55,843,510 Deferred tax assets - 6,530,201 15,318,038 - - - - 21,848,239 TOTAL NON CURRENT ASSETS 63,144,615 4,851,281,126 1,909,279,077 16,070,686 - - - 6,839,775,504 TOTAL ASSETS 63,905,398 5,751,797,301 1,993,773,260 40,116,380 833,336 7,096,519 465,970 7,857,988,164 12-31-2020 LIABILITIES Unidad Chilean Peso U.S. dollar Euro Colombian Peso Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 33,601,292 4 123,897,845 - - - 157,499,141 Current lease liability 3,129,937 65,504 2,841,336 970,934 - - 7,007,711 Trade and other current payables 16,207,046 363,193,954 242,153,349 6,133,452 270,221 627,958,022 Current accounts payable to related parties - 3,105,229 21,185,153 105,759,004 4,576 - 130,053,962 Other current provisions - 3,194,786 - - - 240,018 3,434,804 Current tax liabilities - 69,682,409 2,677,535 - - - 72,359,944 Other current non-financial liabilities - 43,065,405 542,959 3,532,025 - 26,192 47,166,581 TOTAL CURRENT LIABILITIES 52,938,275 482,307,291 393,298,177 116,395,415 4,576 536,431 1,045,480,165 NON-CURRENT LIABILITIES Other non-current financial liabilities 249,693,690 - 1,233,895,436 - - - 1,483,589,126 Non-current lease liability 28,337,700 56,084 9,461,026 7,002,997 - 44,857,807 Trade and other non-current payables - 27,661 117,182,398 - - - 117,210,059 Non-current accounts receivable to related parties - - 1,164,044,462 - - - 1,164,044,462 Other long-term provisions - 192,728,322 17,513,349 - - - 210,241,671 Deferred tax liabilities - 69,239,139 98,818,423 - - - 168,057,562 Non-current provisions for employee benefits - 74,814,799 723,466 - - - 75,538,265 Other non-current non-financial liabilities - 1,177,968 - - - - 1,177,968 TOTAL NON-CURRENT LIABILITIES 278,031,390 338,043,973 2,641,638,560 7,002,997 - - 3,264,716,920 TOTAL LIABILITIES 330,969,665 820,351,264 3,034,936,737 123,398,412 4,576 536,431 4,310,197,085 12-31-2019 LIABILITIES Unidad de Fomento Chilean Peso U.S. dollar Euro Colombian Peso Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 32,860,004 5 175,954,552 - - - 208,814,561 Current lease liability 2,357,438 20,000 2,836,524 628,053 - - 5,842,015 Trade and other current payables 5,215,585 523,504,426 66,209,531 4,333,666 - - 599,263,208 Current accounts payable to related parties - 38,133,907 11,910,024 109,765,956 - - 159,809,887 Other current provisions - 4,065,965 - - - - 4,065,965 Current tax liabilities - 17,940,784 55,049 - - - 17,995,833 Other current non-financial liabilities 254,084 38,929,298 2,933,274 3,391,727 - - 45,508,383 TOTAL CURRENT LIABILITIES 40,687,111 622,594,385 259,898,954 118,119,402 - - 1,041,299,852 NON-CURRENT LIABILITIES Other non-current financial liabilities 274,035,059 - 1,418,569,186 - - - 1,692,604,245 Non-current lease liability 27,672,124 68,922 12,754,827 7,069,801 - - 47,565,674 Trade and other non-current payables - 27,661 56,222,424 - - - 56,250,085 Non-current accounts receivable to related parties - - 486,839,483 297,534,001 - - 784,373,484 Other long-term provisions - 155,315,044 16,545,238 - - - 171,860,282 Deferred tax liabilities - 161,017,178 88,267,463 - - - 249,284,641 Non-current provisions for employee benefits - 65,531,375 632,115 - - - 66,163,490 Other non-current non-financial liabilities - 1,302,759 - - - - 1,302,759 TOTAL NON-CURRENT LIABILITIES 301,707,183 383,262,939 2,079,830,736 304,603,802 - - 3,069,404,660 TOTAL LIABILITIES 342,394,294 1,005,857,324 2,339,729,690 422,723,204 - - 4,110,704,512

Appendix 2 Additional Informa_2

Appendix 2 Additional Information Circular No. 715 of February 3, 2012 (Tables)	12 Months Ended
	Dec. 31, 2020
TRADE AND OTHER RECEIVABLES.
Summary of Aging of Trade and Other Receivables	- As of December 31, 2020 Current 1 - 30 days 31 - 60 days 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than Total Total Non- Trade and Other Receivables ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, gross 377,746,656 36,385,017 12,407,192 6,537,514 6,900,741 7,546,970 7,056,042 3,869,232 3,539,702 69,190,250 531,179,316 377,160,616 Impairment provision (5,564,122) (291,820) (999,683) (1,089,744) (2,061,977) (2,685,492) (3,242,896) (2,392,141) (2,225,233) (29,184,188) (49,737,296) (113,332) Accounts receivable for leasing, gross 8,556,146 — — — — — — — — — 8,556,146 62,602,528 Impairment provision (4,483,408) — — — — — — — — — (4,483,408) — Other receivables, gross 69,371,881 — — — — — — — — 10,518,967 79,890,848 5,366,754 Impairment provision — — — — — — — — — (10,518,967) (10,518,967) — Total 445,627,153 36,093,197 11,407,509 5,447,770 4,838,764 4,861,478 3,813,146 1,477,091 1,314,469 40,006,062 554,886,639 445,016,566 As of December 31, 2019 Current 1-30 days 31-60 days 61-90 days 91-120 days 121-150 151-180 181-210 211-250 More than Total Total Non- Trade and Other Receivables ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, gross 393,746,637 32,460,011 7,929,315 4,700,283 2,997,797 2,754,366 3,037,705 2,667,099 2,510,683 47,236,887 500,040,783 191,966,929 Impairment provision (3,148,393) (357,214) (484,022) (587,103) (677,088) (845,948) (804,567) (1,413,915) (1,114,081) (34,055,771) (43,488,101) — Accounts receivable for leasing, gross 13,158,795 — — — — — — — — — 13,158,795 117,873,340 Impairment provision (2,036,917) — — — — — — — — — (2,036,917) — Other receivables, gross 43,836,461 — — — — — — — — 9,883,938 53,720,399 3,734,116 Impairment provision (55,690) — — — — — — — — (9,883,938) (9,939,628) — Total 445,500,893 32,102,797 7,445,293 4,113,180 2,320,709 1,908,418 2,233,138 1,253,184 1,396,602 13,181,116 511,455,331 313,574,385
Summary of Trade and Other Receivables by Type of Portfolio	- By type of portfolio: December 31, 2020 December 31, 2019 Non-renegotiated Portfolio Renegotiated Portfolio Total Gross Portfolio Non-renegotiated Portfolio Renegotiated Portfolio Total Gross Portfolio Number of Gross Number of Gross Number of Gross Number of Gross Number of Gross Number of Gross Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Up-to-date 1,466,900 523,805,724 52,534 231,101,548 1,519,434 754,907,272 1,340,828 469,633,677 36,952 116,079,889 1,377,780 585,713,566 1 to 30 days 395,186 34,812,023 20,715 1,572,994 415,901 36,385,017 433,225 30,871,310 21,280 1,588,701 454,505 32,460,011 31 to 60 days 80,032 9,839,311 6,815 2,567,881 86,847 12,407,192 106,521 7,630,607 8,018 298,708 114,539 7,929,315 61 to 90 days 33,889 6,030,130 3,116 507,384 37,005 6,537,514 17,349 4,363,345 2,080 336,938 19,429 4,700,283 91 to 120 days 20,530 6,763,017 2,021 137,724 22,551 6,900,741 11,084 2,852,961 1,661 144,836 12,745 2,997,797 121 to 150 days 14,558 6,398,089 1,478 1,148,881 16,036 7,546,970 5,819 2,510,766 1,256 243,600 7,075 2,754,366 151 to 180 days 14,025 5,653,084 1,393 1,402,958 15,418 7,056,042 3,962 2,863,659 544 174,046 4,506 3,037,705 181 to 210 days 9,955 3,625,873 1,311 243,359 11,266 3,869,232 3,647 2,571,731 377 95,368 4,024 2,667,099 211 to 250 days 8,864 3,314,300 1,526 225,402 10,390 3,539,702 2,677 2,421,028 342 89,655 3,019 2,510,683 More than 251 days 52,024 68,459,538 15,224 730,712 67,248 69,190,250 114,518 46,531,813 6,517 705,074 121,035 47,236,887 Total 2,095,963 668,701,089 106,133 239,638,843 2,202,096 908,339,932 2,039,630 572,250,897 79,027 119,756,815 2,118,657 692,007,712
Summary of Portfolio in Default and in Legal Collection Process of Notes Receivable	December 31, 2020 December 31, 2019 Non-renegotiated Portfolio Renegotiated Portfolio Total Gross Portfolio Non-renegotiated Portfolio Renegotiated Portfolio Total Gross Portfolio Number of Gross Number of Gross Number of Gross Number of Gross Number of Gross Number of Gross Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Up-to-date 1,466,900 523,805,724 52,534 231,101,548 1,519,434 754,907,272 1,340,828 469,633,677 36,952 116,079,889 1,377,780 585,713,566 1 to 30 days 395,186 34,812,023 20,715 1,572,994 415,901 36,385,017 433,225 30,871,310 21,280 1,588,701 454,505 32,460,011 31 to 60 days 80,032 9,839,311 6,815 2,567,881 86,847 12,407,192 106,521 7,630,607 8,018 298,708 114,539 7,929,315 61 to 90 days 33,889 6,030,130 3,116 507,384 37,005 6,537,514 17,349 4,363,345 2,080 336,938 19,429 4,700,283 91 to 120 days 20,530 6,763,017 2,021 137,724 22,551 6,900,741 11,084 2,852,961 1,661 144,836 12,745 2,997,797 121 to 150 days 14,558 6,398,089 1,478 1,148,881 16,036 7,546,970 5,819 2,510,766 1,256 243,600 7,075 2,754,366 151 to 180 days 14,025 5,653,084 1,393 1,402,958 15,418 7,056,042 3,962 2,863,659 544 174,046 4,506 3,037,705 181 to 210 days 9,955 3,625,873 1,311 243,359 11,266 3,869,232 3,647 2,571,731 377 95,368 4,024 2,667,099 211 to 250 days 8,864 3,314,300 1,526 225,402 10,390 3,539,702 2,677 2,421,028 342 89,655 3,019 2,510,683 More than 251 days 52,024 68,459,538 15,224 730,712 67,248 69,190,250 114,518 46,531,813 6,517 705,074 121,035 47,236,887 Total 2,095,963 668,701,089 106,133 239,638,843 2,202,096 908,339,932 2,039,630 572,250,897 79,027 119,756,815 2,118,657 692,007,712 a) Portfolio in default and in legal collection process As of December 31, 2020 2019 Number of Amount Number of Amount Portfolio in Default and in Legal Collection Process Customers ThCh$ Customers ThCh$ Notes receivable in default 1,878 256,927 1,888 258,073 Notes receivable in legal collection process (*) 1,140 5,600,040 1,287 6,313,513 Total 3,018 5,856,967 3,175 6,571,586 (*)
Summary of Provisions and Write-offs Portfolio	a) Provisions and write-offs As of December 31, 12-31-2020 12-31-2019 Provisions and Write-offs ThCh$ ThCh$ Provision for non-renegotiated portfolio 12,467,992 4,403,135 Provision for renegotiated portfolio 2,699,715 5,643,865 Total 15,167,707 10,047,000
Trade Receivables by Aging	12-31-2020 Trade receivables Up-to-date 1-30 days in arrears 31-60 days in arrears 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than 251 More than 365 Total Current Total Non- ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, Generation and Transmission 207,362,673 17,592,321 1,880,972 373,611 457,537 494,444 356,603 377,744 533,493 1,925,441 9,037,377 240,392,216 164,089,704 - Large customers 204,354,697 17,521,848 1,876,016 368,006 135,284 485,164 199,958 243,828 270,705 853,335 8,634,892 234,943,733 164,089,704 - Institutional Clients — — — — — — — — — — — — — - Others 3,007,976 70,473 4,956 5,605 322,253 9,280 156,645 133,916 262,788 1,072,106 402,485 5,448,483 — Allowance for impairment (123,260) (989) (1,163) (1,002) (56,036) (633) (722) (4,160) (3,946) (406,781) (3,192,642) (3,791,334) (113,332) Unbilled services 174,934,439 — — — 55,670 — — — — — — 174,990,109 164,089,704 Billed services 32,428,234 17,592,321 1,880,972 373,611 401,867 494,444 356,603 377,744 533,493 1,925,441 9,037,377 65,402,107 — Trade receivables, Distribution 170,383,983 18,792,696 10,526,220 6,163,903 6,443,204 7,052,526 6,699,439 3,491,488 3,006,209 12,804,907 45,422,525 290,787,100 213,070,912 - Mass-market customers 102,010,816 10,395,375 5,325,182 4,551,187 3,889,157 4,248,311 4,049,459 2,189,259 2,730,394 8,211,749 31,036,019 178,636,908 209,112,768 - Large Clients 63,058,780 6,720,252 1,907,638 817,788 1,875,941 1,031,268 358,060 (17,541) (16,790) 469,117 6,492,927 82,697,440 807,561 - Institutional customers 5,314,387 1,677,069 3,293,400 794,928 678,106 1,772,947 2,291,920 1,319,770 292,605 4,124,041 7,893,579 29,452,752 3,150,583 Allowance for impairment (5,440,862) (290,831) (998,520) (1,088,742) (2,005,941) (2,684,859) (3,242,174) (2,387,981) (2,221,287) (8,803,398) (16,781,367) (45,945,962) — Unbilled services 126,861,713 — — — — — — — — — — 126,861,713 206,186,925 Billed services 43,522,270 18,792,696 10,526,220 6,163,903 6,443,204 7,052,526 6,699,439 3,491,488 3,006,209 12,804,907 45,422,525 163,925,387 6,883,986 Total trade receivables, gross 377,746,656 36,385,017 12,407,192 6,537,514 6,900,741 7,546,970 7,056,042 3,869,232 3,539,702 14,730,348 54,459,902 531,179,316 377,160,616 Total Allowance for impairment (5,564,122) (291,820) (999,683) (1,089,744) (2,061,977) (2,685,492) (3,242,896) (2,392,141) (2,225,233) (9,210,179) (19,974,009) (49,737,296) (113,332) Total trade receivables, net 372,182,534 36,093,197 11,407,509 5,447,770 4,838,764 4,861,478 3,813,146 1,477,091 1,314,469 5,520,169 34,485,893 481,442,020 377,047,284 12-31-2019 Trade receivables Up-to-date 1 - 30 days 31 - 60 days 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than 251 More than 365 Total Current Total Non- ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, Generation and Transmission 199,019,252 2,888,824 224,770 705,885 404,757 116,371 787,421 187,920 592,987 1,354,217 6,240,193 212,522,597 86,403,772 - Large Clients 193,125,348 2,763,610 43,392 551,201 290,439 13,672 574,794 78,802 487,520 846,079 4,944,351 203,719,208 86,403,772 - Institutional customers — — — — — — — — — — — — — - Others 5,893,904 125,214 181,378 154,684 114,318 102,699 212,627 109,118 105,467 508,138 1,295,842 8,803,389 — Allowance for impairment (10,907) (260) (200) (142) (103) (93) (258) (154) (98) (577) (2,901,975) (2,914,767) — Unbilled services 142,968,302 — — — — — — — — — — 142,968,302 86,403,772 Billed services 56,050,950 2,888,824 224,770 705,885 404,757 116,371 787,421 187,920 592,987 1,354,217 6,240,193 69,554,295 — Trade receivables, Distribution 194,727,385 29,571,187 7,704,545 3,994,398 2,593,040 2,637,995 2,250,284 2,479,179 1,917,696 3,635,526 36,006,951 287,518,186 105,563,157 - Massive Clients 144,845,823 21,084,861 5,054,606 1,889,878 1,672,041 1,384,133 1,257,238 922,539 789,642 2,097,222 24,433,032 205,431,015 103,267,572 - Large Clients 44,406,790 6,202,698 1,154,539 421,771 95,168 271,785 448,510 209,272 206,091 775,558 5,784,217 59,976,399 7,086 - Institutional Clients 5,474,772 2,283,628 1,495,400 1,682,749 825,831 982,077 544,536 1,347,368 921,963 762,746 5,789,702 22,110,772 2,288,499 Allowance for impairment (3,137,486) (356,954) (483,822) (586,961) (676,985) (845,855) (804,309) (1,413,761) (1,113,983) (2,476,763) (28,676,455) (40,573,334) — Unbilled services 141,740,569 — — — — — — — — — — 141,740,569 100,458,746 Billed services 52,986,816 29,571,187 7,704,545 3,994,398 2,593,040 2,637,995 2,250,284 2,479,179 1,917,696 3,635,526 36,006,951 145,777,617 5,104,411 Total trade receivables, gross 393,746,637 32,460,011 7,929,315 4,700,283 2,997,797 2,754,366 3,037,705 2,667,099 2,510,683 4,989,743 42,247,144 500,040,783 191,966,929 Total Allowance for impairment (3,148,393) (357,214) (484,022) (587,103) (677,088) (845,948) (804,567) (1,413,915) (1,114,081) (2,477,340) (31,578,430) (43,488,101) — Total trade receivables, net 390,598,244 32,102,797 7,445,293 4,113,180 2,320,709 1,908,418 2,233,138 1,253,184 1,396,602 2,512,403 10,668,714 456,552,682 191,966,929
Summary of Estimated Sales and Purchases of Energy and Capacity	12-31-2020 12-31-2019 Energy and Capacity Tolls Energy and Capacity Tolls STATEMENT OF FINANCIAL POSITION ThCh$ ThCh$ ThCh$ ThCh$ Current accounts receivable from related parties — — — — Trade and other receivables, current 229,499,918 33,270,963 209,842,624 13,929,209 Trade and other receivables, non-current 396,509,053 — 192,961,043 — Total Estimated Assets 626,008,971 33,270,963 402,803,667 13,929,209 Current accounts payable to related parties — — — — Trade and other payables, current 68,569,674 13,216,339 71,189,226 20,059,576 Trade and other payables, non-current 121,315,888 — 53,941,373 — Total Estimated Liabilities 189,885,562 13,216,339 125,130,599 20,059,576 12-31-2020 12-31-2019 Energy and power Tolls Energy and power Tolls INCOME STATEMENT ThCh$ ThCh$ ThCh$ ThCh$ Energy Sales 422,457,671 33,270,962 310,301,370 13,929,209 Energy Purchases 147,662,168 11,928,862 125,130,599 20,059,576
Number and value of transactions	12-31-2020 12-31-2019 Total detail by type of transaction Total detail by Total detail by type of transaction Total detail by Number and Amount of Transactions Last Quarter Year-to-date Last Quarter Year-to-date Allowance for impairment and recoveries: Number of Transactions 10,390 72,590 52,870 88,750 Amount of the transactions 7,768,107 15,167,707 2,451,690 10,047,000
Trade Receivables by Type of Portfolio	12-31-2020 Type of Portfolio Up-to-date 1 - 30 days 31 - 60 days 61 - 90 days 91 - 120 days 121 - 150 days 151 - 180 days 181 - 210 days 211 - 250 days More than 251 Total gross portfolio Total non-current gross portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION AND TRANSMISSION Non-renegotiated portfolio 207,362,673 17,592,321 1,880,972 373,611 457,537 494,444 356,603 377,744 533,493 10,596,272 240,025,670 164,089,704 - Large Clients 204,354,697 17,521,848 1,876,016 368,006 135,284 485,164 199,958 243,828 270,705 9,488,227 234,943,733 164,089,704 - Institutional Clients — — — — — — — — — — — — - Other 3,007,976 70,473 4,956 5,605 322,253 9,280 156,645 133,916 262,788 1,108,045 5,081,937 — Renegotiated portfolio — — — — — — — — — — — — - Large Clients — — — — — — — — — — — — - Institutional Clients — — — — — — — — — — — — - Other — — — — — — — — — — — — DISTRIBUTION Non-renegotiated portfolio 151,965,997 17,219,702 7,958,339 5,656,519 6,305,480 5,903,645 5,296,481 3,248,129 2,780,807 57,863,266 264,198,365 387,350 - Mass-market Clients 87,768,761 9,237,781 4,772,065 4,091,907 3,771,913 3,897,093 3,590,787 1,945,914 2,524,013 38,886,067 160,486,301 163,843 - Large Clients 61,579,935 6,530,802 1,801,692 772,761 1,855,461 1,031,268 358,060 (17,541) (35,811) 6,962,044 80,838,671 223,507 - Institutional Clients 2,617,301 1,451,119 1,384,582 791,851 678,106 975,284 1,347,634 1,319,756 292,605 12,015,155 22,873,393 — Renegotiated portfolio 18,417,986 1,572,994 2,567,881 507,384 137,724 1,148,881 1,402,958 243,359 225,402 730,712 26,955,281 212,683,562 - Mass-market Clients 14,242,055 1,157,595 553,116 459,280 117,244 351,218 458,673 243,345 206,381 728,248 18,517,155 208,948,925 - Large Clients 1,478,845 189,449 105,946 45,027 20,480 — — — 19,021 — 1,858,768 584,054 - Institutional Clients 2,697,086 225,950 1,908,819 3,077 — 797,663 944,285 14 — 2,464 6,579,358 3,150,583 Total gross portfolio 377,746,656 36,385,017 12,407,192 6,537,514 6,900,741 7,546,970 7,056,042 3,869,232 3,539,702 69,190,250 531,179,316 377,160,616 12-31-2019 Type of Portfolio Current 1-30 days 31-60 days 61-90 days 91-120 days 121-150 days 151-180 days 181-210 days 211-250 days More than Total Total Non- ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION AND TRANSMISSION Non-renegotiated portfolio 199,019,252 2,888,824 224,770 705,885 404,757 116,371 787,421 187,920 592,987 7,594,410 212,522,597 86,403,772 - Large customers 193,125,348 2,763,610 43,392 551,201 290,439 13,672 574,794 78,802 487,520 5,790,430 203,719,208 86,403,772 - Institutional customers — — — — — — — — — — — — - Others 5,893,904 125,214 181,378 154,684 114,318 102,699 212,627 109,118 105,467 1,803,980 8,803,389 — Renegotiated portfolio — — — — — — — — — — — — - Large customers — — — — — — — — — — — — - Institutional customers — — — — — — — — — — — — - Others — — — — — — — — — — — DISTRIBUTION Non-renegotiated portfolio 184,125,135 27,982,486 7,405,837 3,657,460 2,448,204 2,394,395 2,076,238 2,383,811 1,828,041 38,937,403 273,239,010 85,518 - Mass-market customers 136,847,474 20,324,155 4,780,197 1,556,017 1,527,205 1,162,547 1,083,203 827,171 699,987 26,043,745 194,851,701 85,518 - Large customers 44,252,680 6,148,385 1,130,250 421,771 95,168 271,785 448,510 209,272 206,091 4,961,884 58,145,796 — - Institutional customers 3,024,981 1,509,946 1,495,390 1,679,672 825,831 960,063 544,525 1,347,368 921,963 7,931,774 20,241,513 — Renegotiated portfolio 10,602,250 1,588,701 298,708 336,938 144,836 243,600 174,046 95,368 89,655 705,074 14,279,176 105,477,639 - Mass-market customers 7,998,348 760,707 274,411 333,861 144,836 221,586 174,035 95,368 89,655 486,509 10,579,316 103,182,054 - Large Customers 154,110 54,312 24,288 — — — — — — 46,775 279,485 7,086 - Institutional Customers 2,449,792 773,682 9 3,077 — 22,014 11 — — 171,790 3,420,375 2,288,499 Total Gross Portfolio 393,746,637 32,460,011 7,929,315 4,700,283 2,997,797 2,754,366 3,037,705 2,667,099 2,510,683 47,236,887 500,040,783 191,966,929

Appendix 3 Details of Due Dat_2

Appendix 3 Details of Due Dates of Payments to Suppliers (Tables)	12 Months Ended
	Dec. 31, 2020
APPENDIX 3 DETAILS OF DUE DATES OF PAYMENTS TO SUPPLIERS
Summary of Details of Due Dates of Payments to Suppliers	This appendix is part of Note 24, “Current and Non-Current Payables,” and forms an integral part of the consolidated financial statements of Enel Chile. 12-31-2020 12-31-2019 Goods Services Other Total Goods Services Other Total Suppliers with Current Payments ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Up to 30 days 133,063,016 89,574,397 166,733,893 389,371,306 101,666,302 148,397,518 121,111,092 371,174,912 Between 31 and 60 days 49,211,386 60,808,696 79,770 110,099,852 5,579,618 71,069,622 219,965 76,869,205 Between 61 and 90 days 78,114,700 343,314 187,027 78,645,041 9,045,950 1,118,102 11,177,955 21,342,007 Between 91 and 120 days — — — — — — — — Between 121 and 365 days — — — — 48,102,870 — — 48,102,870 More than 365 days — 487 117,129,284 117,129,771 — 487 56,222,424 56,222,911 Total 260,389,102 150,726,894 284,129,974 695,245,970 164,394,740 220,585,729 188,731,436 573,711,905 12-31-2020 12-31-2019 Goods Services Other Total Goods Services Other Total Suppliers details ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Suppliers for energy purchase - 22,475,111 226,238,177 248,713,288 - 63,364,701 168,730,485 232,095,186 Suppliers for the purchase of fuels and gas - 36,735,748 - 36,735,748 - 55,179,023 - 55,179,023 Accounts payable for goods and services 202,897,547 91,516,035 - 294,413,582 81,807,039 102,042,005 - 183,849,044 Accounts payable for the purchase of assets 57,491,555 - 57,891,797 115,383,352 82,587,701 - 20,000,951 102,588,652 Total 260,389,102 150,726,894 284,129,974 695,245,970 164,394,740 220,585,729 188,731,436 573,711,905

General Information (Detail)

General Information (Detail) - employee	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of General Information About Financial Statements [Line Items]
Number of employees	2,219	2,133
Average number of employees	2,202	2,104
Enel S.p.A. [member]
Disclosure Of General Information About Financial Statements [Line Items]
Ownership interest	64.93%

Basis of Presentation of the _3

Basis of Presentation of the Consolidated Financial Statements - Schedule of Ownership (Detail) $ in Thousands, $ in Millions	Apr. 02, 2018	Apr. 01, 2018	Dec. 31, 2020USD ($)	Dec. 31, 2019	Dec. 31, 2020CLP ($)
Statement Of Compliance And Basis Of Presentation [Line Items]
Nominal amount of hedging instruments			$ 400		$ 284,380,000
Empresa de Transmision Chena S.A [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			100.00%	100.00%
Ownership interest			100.00%	100.00%
Empresa Electrica de Colina Ltda. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			100.00%	100.00%
Ownership interest			100.00%	100.00%
Empresa Electrica Pehuenche S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			92.65%	92.65%
Ownership interest			92.65%	92.65%
Luz Andes Ltda. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership				100.00%
Ownership interest				100.00%
Enel Distribucion Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			99.09%	99.09%
Percentage of indirect ownership				0.00%
Ownership interest			99.09%	99.09%
Enel Generación Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			93.55%	93.55%
Percentage of indirect ownership				0.00%
Ownership interest	93.55%	59.98%	93.55%	93.55%
GasAtacama Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership				0.00%
Gasoducto Atacama Argentina S A [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership				0.00%
Sociedad Agricola de Cameros Ltda. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			57.50%	57.50%
Percentage of indirect ownership				0.00%
Ownership interest			57.50%	57.50%
Enel Green Power Chile Ltda. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership				99.99%
Percentage of indirect ownership				0.00%
Ownership interest				99.99%
Enel Green Power Del Sur S p A [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			99.99%
Percentage of indirect ownership				100.00%
Ownership interest			99.99%	100.00%
Parque Eolico Valle De Los Vientos S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership				0.01%
Percentage of indirect ownership				99.99%
Ownership interest				100.00%
Diego de Almagro Matriz SpA. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership				100.00%
Ownership interest				100.00%
Empresa Electrica Panguipulli S .A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership				0.04%
Percentage of indirect ownership				99.96%
Ownership interest				100.00%
Sociedad Almeyda Solar SpA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			100.00%	100.00%
Ownership interest			100.00%	100.00%
Parque Eolico Tal Tal S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership				0.01%
Percentage of indirect ownership				99.99%
Ownership interest				100.00%
Geotermica del Norte SA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			84.59%	84.59%
Ownership interest			84.59%	84.59%
Empresa Nacional de Geotermia SA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			51.00%	51.00%
Ownership interest			51.00%	51.00%
Parque Eolico Talinay Oriente S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership			60.91%	60.91%
Ownership interest			60.91%	60.91%
Enel X Chile SpA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			100.00%	100.00%
Percentage of indirect ownership				0.00%
Ownership interest			100.00%	100.00%

Basis of Presentation of the _4

Basis of Presentation of the Consolidated Financial Statements – Changes in the Scope of Consolidation (Detail) - Enel Generación Chile S.A. [Member]	Aug. 29, 2019
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of total ownership interest	2.63%
GasAtacama Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of total ownership interest	100.00%

Basis of Presentation of the _5

Basis of Presentation of the Consolidated Financial Statements – Investments in Associates (Detail)	Jun. 11, 2020	Dec. 31, 2020	Dec. 31, 2019
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of voting power considered to be significant influence		20.00%
GNL Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Direct		0.00%	0.00%
Indirect		33.33%	33.33%
Total		33.33%	33.33%
Energia Marina SpA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Direct		0.00%	0.00%
Indirect		25.00%	25.00%
Total		25.00%	25.00%
Enel AMPCI Ebus Chile SpA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Direct		0.00%	0.00%
Indirect		20.00%
Total	20.00%	20.00%

Basis of Presentation of the _6

Basis of Presentation of the Consolidated Financial Statements – Joint Arrangements (Detail) - Transmisora Electrica de Quillota Ltda. [Member]	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement Of Compliance And Basis Of Presentation [Line Items]
Direct	0.00%	0.00%
Indirect	50.00%	50.00%
Total	50.00%	50.00%

Basis of Presentation of the _7

Basis of Presentation of the Consolidated Financial Statements – Basis of consolidation and business combinations (Detail)	12 Months Ended
	Dec. 31, 2020
Top of Range [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Fair value of assets acquired and liabilities assumed, measurement period	1 year

Basis of Presentation of the _8

Basis of Presentation of the Consolidated Financial Statements - Argentina's Hyperinflationary Economy (Detail)	Jul. 01, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Hyperinflationary Reporting [Line Items]
General price index		36.13	53.64	47.83
IAS 29
Disclosure of Hyperinflationary Reporting [Line Items]
Cumulative inflation rate period	3 years
Cumulative inflation rate percentage	100.00%

Accounting Policies - Estimated

Accounting Policies - Estimated Useful Lives of Property, Plant and Equipment (Detail)	12 Months Ended
	Dec. 31, 2020
Renewable Energy Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	20 years
Pipelines [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	20 years
Bottom of Range [Member] | Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	6 years
Bottom of Range [Member] | IT Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	3 years
Bottom of Range [Member] | Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	2 years
Bottom of Range [Member] | Motor Vehicles [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	5 years
Bottom of Range [Member] | Civil Engineering Works at Hydroelectric Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | Electromechanical Equipment at Hydroelectric Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | Combined Cycle Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | High-Voltage Network [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | Low- and Medium-Voltage Network [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | Measuring and Remote Control Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Bottom of Range [Member] | Primary Substations [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	6 years
Top of Range [Member] | Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	60 years
Top of Range [Member] | Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	65 years
Top of Range [Member] | IT Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	15 years
Top of Range [Member] | Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	35 years
Top of Range [Member] | Motor Vehicles [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	10 years
Top of Range [Member] | Civil Engineering Works at Hydroelectric Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	65 years
Top of Range [Member] | Electromechanical Equipment at Hydroelectric Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	45 years
Top of Range [Member] | Combined Cycle Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	25 years
Top of Range [Member] | High-Voltage Network [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	60 years
Top of Range [Member] | Low- and Medium-Voltage Network [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	50 years
Top of Range [Member] | Measuring and Remote Control Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	50 years
Top of Range [Member] | Primary Substations [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful life	25 years

Accounting Policies - Additiona

Accounting Policies - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Line Items]
Intangible assets with indefinite useful lives amount	$ 14,605,574	$ 16,455,724
Cash flow hedge [Member]
Accounting Policies [Line Items]
Cash flow projection period	ten years
Impairment of non-financial assets [Member]
Accounting Policies [Line Items]
Cash flow projection period	three years
Bottom of Range [Member]
Accounting Policies [Line Items]
Pre-tax discount rates	6.30%
Profit for each period absorbed, percentage	30.00%
Bottom of Range [Member] | Impairment of non-financial assets [Member]
Accounting Policies [Line Items]
Growth rate used to extrapolate cash flow projections	2.00%
Top of Range [Member]
Accounting Policies [Line Items]
Pre-tax discount rates	8.20%
Top of Range [Member] | Impairment of non-financial assets [Member]
Accounting Policies [Line Items]
Growth rate used to extrapolate cash flow projections	2.90%
Computer Software [Member] | Weighted average [Member]
Accounting Policies [Line Items]
Intangible assets, estimated useful life	4 years

Sector Regulation and Electri_2

Sector Regulation and Electricity System Operations (Detail) $ in Millions	Jan. 21, 2020	Nov. 30, 2017$ / MWhGWhTWhcompany	Jul. 31, 2016$ / MWhTWhcompanyitem	Oct. 31, 2015$ / MWhTWhitem	Dec. 31, 2020USD ($)kilovoltskWGWhsegmentitem
Sector Regulations And Electricity System Operations [Line Items]
Percentage of renewable energy requirement					5.00%
Percentage of increase in energy requirement					0.50%
Target for renewable energy requirement					10.00%
Target for energy generated by non-conventional renewable energy					20.00%
Fee setting process					4 years
Price setting process | item					9
Annual Value of Transmission, minimum discount rate					7.00%
Number of years of income from the start of operations					20 years
Period of bidding processes managed by the CNE					5 years
Pay as bid, extension period					20 years
Frequency of calculation by CNE (in years)					4 years
Percentage of aggregate profitability industry range					10.00%
Review period of services associated with the calculation of AVD					4 years
Maximum amount of account receivable generated | $					$ 1,350
Number of energy blocks awarded | item			5	3
Energy blocks awarded unit | TWh			12.4	1.2
Number of companies | company		5	84
Weighted price of energy | $ / MWh		32.50	47.60	79.30
Energy awarded unit per year | GWh		2,200
Number of transmission segment | segment					5
Distribution price setting period	4 years
Future period annual energy supply | GWh					2,310
Enel Generación Chile S.A. [Member]
Sector Regulations And Electricity System Operations [Line Items]
Energy awarded unit per year | TWh		1.2	5.9
Percentage of total energy awarded		54.00%	47.60%
Bottom of Range [Member]
Sector Regulations And Electricity System Operations [Line Items]
Connected capacity for regulated customers					500
Connected capacity for free customers					500
Term of free customers					4 years
Annual margin range					6.00%
Differential rate allowed from the rate defined by the CNE					3.00%
Top of Range [Member]
Sector Regulations And Electricity System Operations [Line Items]
Connected capacity for regulated customers					5,000
Connected capacity for free customers					5,000
Electricity supplied to end customers, voltage | kilovolts					23
Annual margin range					8.00%
Differential rate allowed from the rate defined by the CNE					2.00%

Business Combinations Under C_3

Business Combinations Under Common Control - Reorganization Conditional Information (Detail) - CLP ($)	Apr. 02, 2018	Apr. 01, 2018	Dec. 20, 2017	May 11, 1999	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about business combination [line items]
Issued capital			$ 1,891,727,278,668		$ 3,882,103,470,000	$ 3,882,103,470,000
New common shares issued			23,069,844,862
Enel Generación Chile S.A. [Member]
Disclosure of detailed information about business combination [line items]
Ownership interest in subsidiary				60.00%
Charge to other miscellaneous reserves					$ 407,354,462,000
Enel Generación Chile S.A. [Member] | Enel S.p.A. [Member]
Disclosure of detailed information about business combination [line items]
Ownership interest in subsidiary	61.93%
Enel Generación Chile S.A. [Member]
Disclosure of detailed information about business combination [line items]
Proportion of ownership interests held by non-controlling interests					40.00%
Proceed to pay subscription price per share					$ 82
Ownership interest in subsidiary	93.55%	59.98%			93.55%	93.55%
Enel Generación Chile S.A. [Member] | Ordinary shares [member]
Disclosure of detailed information about business combination [line items]
Cash used to subscribe share					$ 236
Tender offer payable in cash (per share)					590
Common stock subscription price					82
Enel Generación Chile S.A. [Member] | American Depositary Shares [Member]
Disclosure of detailed information about business combination [line items]
Cash used to subscribe share					7,080
Tender offer payable in cash (per share)					17,700
Common stock subscription price					$ 4,100

Business Combinations Under C_4

Business Combinations Under Common Control - Identifiable Assets Acquired and Liabilities Assumed (Detail) - Enel Green Power Latin America S.A. [Member] $ in Thousands	Apr. 02, 2018CLP ($)
Amounts recognised as of acquisition date for each major class of assets acquired and liabilities assumed [abstract]
Cash and cash equivalents	$ 12,173,982
Other current financial assets	8,460
Other current non-financial assets	3,832,583
Trade and other receivables, current	27,414,273
Current receivables to related parties	73,749,131
Inventories	2,851,171
Current tax assets	2,750,250
Other non-current financial assets	5,685,422
Other non-current non-financial assets	262,878
Trade and other receivables, non-current	43,829,961
Intangible assets other than goodwill	41,786,159
Goodwill	6,652,935
Property, plant and equipment	1,365,850,084
Deferred tax assets	21,246,605
Other current financial liabilities	(62,444,763)
Trade and other current payables, current	(49,109,886)
Current payables to related parties	(33,381,911)
Current tax liabilities	(347,483)
Other non-current financial liabilities	(259,856,654)
Non-current accounts payable to related parties	(396,081,972)
Other non-current provision	(9,169,918)
Deferred tax liabilities	(58,067,689)
Provisions for non-current employee benefits	(603,109)
Net identifiable assets acquired	$ 739,030,509

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CASH AND CASH EQUIVALENTS
Cash balances	$ 42,660	$ 31,416
Bank balances	330,471,774	24,960,269
Time deposits	591,570	14,600,772
Other fixed-income instruments	930,009	196,092,043
Total	$ 332,036,013	$ 235,684,500

Cash and Cash Equivalents - Add

Cash and Cash Equivalents - Additional Information (Detail) - Top of Range [Member]	12 Months Ended
	Dec. 31, 2020
Disclosure Of Cash And Cash Equivalents [Line Items]
Time deposits maturity description	three months
Other fixed-income instruments maturity description	90 days

Cash and Cash Equivalents - S_2

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents by Currency (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 332,036,013	$ 235,684,500
Chilean Peso [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	300,357,148	209,818,277
Argentine Peso [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	3,977,675	7,096,519
Euros [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	83,819	654,319
U.S. Dollar [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 27,617,371	$ 18,115,385

Cash and Cash Equivalents - S_3

Cash and Cash Equivalents - Summary of Components of Other Payments for Operating Activities (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CASH AND CASH EQUIVALENTS
VAT tax debit	$ (135,096,018)	$ (123,065,058)	$ (111,371,155)
Emissions tax	(23,800,541)	(15,563,495)	(16,437,441)
Others	(11,394,034)	(15,871,496)	(9,543,503)
Total	$ (170,290,593)	$ (154,500,049)	$ (137,352,099)

Cash and Cash Equivalents - S_4

Cash and Cash Equivalents - Summary of Reconciliation of Liabilities Arising from Financing Activities (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	$ 2,677,361,424	$ 2,520,235,955	$ 748,709,979
Financing Cash Flows, From	485,427,458	285,623,220	1,565,782,604
Financing Cash Flows, Used	(160,610,656)	(355,150,504)	(844,723,456)
Financing Cash Flows, Interest paid	(139,251,404)	(134,429,754)	(116,540,891)
Financing Cash Flows, Total	185,565,398	(203,957,038)	604,518,257
Non-Cash Changes, Acquisition of subsidiaries			715,268,615
Non-Cash Changes, Changes in fair value	6,156,163	46,396,434	48,389,490
Non-Cash Changes, Foreign exchange differences	(170,132,567)	148,940,339	264,754,521
Non-Cash Changes, Financial costs	138,578,899	136,303,028	149,852,881
Non-Cash Changes, New leases	2,704,926	37,818,654
Non-Cash Changes, Other changes	746,481	(8,375,948)	(11,257,788)
Ending Balance	2,840,980,724	2,677,361,424	2,520,235,955
Long-term borrowings [member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	2,470,532,068	2,140,557,500	769,169,018
Financing Cash Flows, From	484,520,001	283,799,437	1,278,023,491
Financing Cash Flows, Used	(4,791,827)		(674,473,125)
Financing Cash Flows, Total	479,728,174	283,799,437	603,550,366
Non-Cash Changes, Acquisition of subsidiaries			649,261,789
Non-Cash Changes, Changes in fair value	12,628,182	7,924,704	2,541,108
Non-Cash Changes, Foreign exchange differences	(165,703,734)	137,637,204	261,981,228
Non-Cash Changes, Financial costs	2,646,905
Non-Cash Changes, Other changes	(151,799,376)	(99,386,777)	(145,946,009)
Ending Balance	2,648,032,219	2,470,532,068	2,140,557,500
Short-term borrowings [member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	158,284,616	408,415,562	15,760,182
Financing Cash Flows, From	199,395		287,759,113
Financing Cash Flows, Used	(150,878,247)	(350,652,302)	(168,360,646)
Financing Cash Flows, Interest paid	(137,759,315)	(133,788,145)	(115,801,821)
Financing Cash Flows, Total	(288,438,167)	(484,440,447)	3,596,646
Non-Cash Changes, Acquisition of subsidiaries			71,502,040
Non-Cash Changes, Changes in fair value	(1,893,193)		24,229,123
Non-Cash Changes, Foreign exchange differences	3,280,020	9,096,964	9,525,539
Non-Cash Changes, Financial costs	133,794,543	134,487,859	149,113,811
Non-Cash Changes, Other changes	152,545,857	90,724,678	134,688,221
Ending Balance	157,573,676	158,284,616	408,415,562
Lease liabilities [member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	53,407,689	14,476,449	14,608,915
Financing Cash Flows, Used	(4,940,582)	(4,498,202)	(1,889,685)
Financing Cash Flows, Interest paid	(1,492,089)	(641,609)	(739,070)
Financing Cash Flows, Total	(6,432,671)	(5,139,811)	(2,628,755)
Non-Cash Changes, Foreign exchange differences	48,124	4,437,228	1,757,219
Non-Cash Changes, Financial costs	2,137,451	1,815,169	739,070
Non-Cash Changes, New leases	2,704,926	37,818,654
Ending Balance	51,865,519	53,407,689	14,476,449
Assets held to hedge liabilities arising from financing activities [member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	(4,862,949)	(43,213,556)	(50,828,136)
Financing Cash Flows, From	708,062	1,823,783
Financing Cash Flows, Total	708,062	1,823,783
Non-Cash Changes, Acquisition of subsidiaries			(5,495,214)
Non-Cash Changes, Changes in fair value	(4,578,826)	38,471,730	21,619,259
Non-Cash Changes, Foreign exchange differences	(7,756,977)	(2,231,057)	(8,509,465)
Non-Cash Changes, Other changes		286,151
Ending Balance	$ (16,490,690)	$ (4,862,949)	$ (43,213,556)

Other Financial Assets - Summar

Other Financial Assets - Summary of Other Financial Assets (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
OTHER FINANCIAL ASSETS
Financial assets at fair value with changes in other comprehensive income, Current	$ 127,854	$ 127,854
Financial assets measured at amortized cost, current	808,692	860,425
Hedging derivatives, current	1,000,964	322,316
Non-Hedging derivatives, current	1,414,894	0
Other current financial assets	3,352,404	1,310,595
Financial assets at fair value with changes in other comprehensive income, Non-current	2,326,480	2,349,223
Financial assets measured at amortized cost, non-current	0	0
Hedging derivatives, non-current	16,422,737	4,871,397
Non-Hedging derivatives non-current	1,911,233	0
Other non-current financial assets	$ 20,660,450	$ 7,220,620

Other Non-financial Assets an_3

Other Non-financial Assets and Liabilities - Other non-financial assets (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	$ 19,801,573	$ 34,634,563
Other non-current non-financial assets	65,787,215	38,050,184
VAT Tax Credit and Other Taxes
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	8,575,080	19,497,233
Other non-current non-financial assets	46,638,860	19,799,224
Prepaid expenses
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	9,991,447	12,329,859
Guarantee deposit
Disclosure Of Financial Assets [Line Items]
Other non-current non-financial assets	128,724	1,879,019
PPM water rights
Disclosure Of Financial Assets [Line Items]
Other non-current non-financial assets	7,910,531	7,670,114
Spare parts with a consumption schedule of more than 12 months
Disclosure Of Financial Assets [Line Items]
Other non-current non-financial assets	7,543,841	5,773,991
Other
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	1,235,046	2,807,471
Other non-current non-financial assets	$ 3,565,259	$ 2,927,836

Other Non-financial Assets an_4

Other Non-financial Assets and Liabilities - Other non-financial liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	$ 47,166,581	$ 45,508,383
Other non-current non-financial liabilities	1,177,968	1,302,759
VAT Credit and Other Taxes
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	40,117,141	31,616,664
Reimbursable financial contributions
Disclosure Of Financial Liabilities [Line Items]
Other non-current non-financial liabilities	1,177,968	1,302,759
Splices
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	3,860,816	9,283,177
Transfer of networks
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	1,473,486	2,845,708
Products and services
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	954,609	1,088,498
Other
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	$ 760,529	$ 674,336

Trade and Other Receivables - G

Trade and Other Receivables - Gross and net amounts (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Trade And Other Receivables [Line Items]
Trade and other receivables, Current	$ 554,886,639	$ 511,455,330
Trade receivables, Current	481,442,020	456,552,682
Accounts receivable from finance leases, Current	4,072,738	11,121,878
Other receivables, Current	69,371,881	43,780,770
Trade and other receivables, Non-current	445,016,566	313,574,385
Trade receivables, Non-current	377,047,284	191,966,929
Accounts receivable from finance leases, Non-current	62,602,528	117,873,340
Other receivables, Non-current	5,366,754	3,734,116
Gross Carrying Amount [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Trade and other receivables, Current	619,626,310	566,919,977
Trade receivables, Current	531,179,316	500,040,783
Accounts receivable from finance leases, Current	8,556,146	13,158,795
Other receivables, Current	79,890,848	53,720,399
Trade and other receivables, Non-current	445,129,898	313,574,385
Trade receivables, Non-current	377,160,616	191,966,929
Accounts receivable from finance leases, Non-current	62,602,528	117,873,340
Other receivables, Non-current	$ 5,366,754	$ 3,734,116

Trade and Other Receivables - O

Trade and Other Receivables - Other net receivables (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
TRADE AND OTHER RECEIVABLES.
Recoveries from insurance companies, Current	$ 20,325	$ 2,011,406
Accounts receivable from employees, Current	13,256,252	10,017,453
Advances to suppliers and creditors, Current	43,102,611	19,864,669
Compensation for central claims Tarapaca and Bocamina, current	5,360,345
Others, Current	7,632,348	11,887,242
Other receivables, Current	69,371,881	43,780,770
Accounts receivable from employees, Non-current	4,442,878	3,308,861
Advances to suppliers and creditors, Non-current	909,661	415,787
Others, Non-current	14,215	9,468
Other receivables, Non-current	$ 5,366,754	$ 3,734,116

Trade and Other Receivables - A

Trade and Other Receivables - Additional Information (Detail) $ in Thousands, in Thousands, $ in Millions	Dec. 30, 2020CLP ($)	Dec. 31, 2020USD ($)customer	Dec. 31, 2020CLP ($)customer	Dec. 31, 2019CLP ($)customer	Dec. 31, 2018CLP ($)	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)
Disclosure of disaggregation of revenue from contracts with customers [line items]
Gross non-current increase in trade accounts receivable			$ 185,193,687
Maximum amount of account receivable generated		$ 1,350
Trade receivables, Non-current				$ 191,966,929			$ 377,047,284
Trade and other payables non-current				56,250,085			117,210,059
Trade receivables, Current				456,552,682			481,442,020
Trade and other payables, current				$ 599,263,208		627,958,022	$ 627,958,022
Number of customers with sales representing 10% or more of revenues | customer		0	0	0
Finance expense			$ 127,408,771	$ 164,897,900	$ 122,184,189
Accounts payable decrease			62,319,952
Profit from the sale of finance leases			5,090,399	5,366,871	3,345,786
Finance income from lease receivables			1,562,017	1,446,779	$ 1,182,229
Impairment losses of trade receivables			15,167,707	10,047,000
Percentage of increase over the loss						51.00%	51.00%
Inter-American Investment Corporation [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Transfer of collection rights	$ 44,797,737
Derecognition of accounts receivable	533,615
Finance expense	$ 533,615
Electricity Distribution Segment [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Trade receivables, Non-current				182,076,569			$ 370,276,397
Trade and other payables non-current				53,941,373			$ 112,895,627
Impact on lower revenues from energy sales			10,864,866	3,782,091
Impact on lower cost from energy purchases			3,515,292	1,181,163
Impact on higher revenues			15,328,829	5,225,739
Impact on higher financial costs			(4,518,268)	19,062,333
Profit for net exchange difference			25,260,383	$ 3,835,024
Electricity Distribution Segment [Member] | Exempt Resolution No 340 [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Impact on higher revenues			11,887,346
Impact on higher financial costs			$ 3,206,420

Trade and Other Receivables - S

Trade and Other Receivables - Schedule of Minimum Lease Payments Receivable (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Gross Carrying Amount [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	$ 76,954,394	$ 149,993,694
Gross Carrying Amount [Member] | Less Than One Year [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	8,560,073	15,313,622
Gross Carrying Amount [Member] | One to Two Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	10,294,652	17,350,359
Gross Carrying Amount [Member] | Two to Three Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	10,266,956	17,350,359
Gross Carrying Amount [Member] | Three to Four Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	10,226,534	17,316,251
Gross Carrying Amount [Member] | Four to Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	10,118,045	17,271,708
Gross Carrying Amount [Member] | More Than Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	27,488,134	65,391,395
Interest [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	10,279,128	20,998,476
Interest [Member] | Less Than One Year [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	4,487,336	4,191,744
Interest [Member] | One to Two Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	1,735,758	3,919,937
Interest [Member] | Two to Three Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	1,692,482	3,630,136
Interest [Member] | Three to Four Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	1,309,548	3,115,800
Interest [Member] | Four to Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	472,760	2,246,896
Interest [Member] | More Than Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	581,244	3,893,963
Present Value [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	66,675,266	128,995,218
Present Value [Member] | Less Than One Year [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	4,072,737	11,121,878
Present Value [Member] | One to Two Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	8,558,894	13,430,422
Present Value [Member] | Two to Three Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	8,574,474	13,720,223
Present Value [Member] | Three to Four Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	8,916,986	14,200,451
Present Value [Member] | Four to Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	9,645,285	15,024,812
Present Value [Member] | More Than Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	$ 26,906,890	$ 61,497,432

Trade and Other Receivables -_2

Trade and Other Receivables - Summary of Balance of Past Due But Not Impaired Trade Receivables (Detail) - Trade Receivables [Member] - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Assets That Are Past Due But Not Impaired [Line Items]
Trade Receivables Past Due but not Impaired	$ 109,259,486	$ 65,954,438
Less Than Three Months [Member]
Disclosure Of Financial Assets That Are Past Due But Not Impaired [Line Items]
Trade Receivables Past Due but not Impaired	52,948,476	43,661,270
Between Three and Six Months [Member]
Disclosure Of Financial Assets That Are Past Due But Not Impaired [Line Items]
Trade Receivables Past Due but not Impaired	13,513,388	6,462,265
Between Six and Twelve Months [Member]
Disclosure Of Financial Assets That Are Past Due But Not Impaired [Line Items]
Trade Receivables Past Due but not Impaired	8,311,729	5,162,189
More Than Twelve Months [Member]
Disclosure Of Financial Assets That Are Past Due But Not Impaired [Line Items]
Trade Receivables Past Due but not Impaired	$ 34,485,893	$ 10,668,714

Trade and Other Receivables -_3

Trade and Other Receivables - Summary of Reconciliation of Changes in the Allowance for Impairment of Trade Receivables (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Trade Receivables [Member]
Disclosure Of Financial Assets [Line Items]
Financial assets at beginning of period	$ 65,954,438
Financial assets at end of period	109,259,486	$ 65,954,438
Trade Receivables Past Due and Impaired [Member] | Accumulated impairment [member]
Disclosure Of Financial Assets [Line Items]
Financial assets at beginning of period	(55,464,647)	(49,479,880)
Increases (decreases) for the year	(15,167,707)	(10,047,000)
Amounts written off	(5,709,371)	(4,067,201)
Increases (decreases) in foreign currency translation differences	69,980	(4,968)
Financial assets at end of period	$ (64,853,003)	$ (55,464,647)

Balances and Transactions wit_3

Balances and Transactions with Related Parties - Summary of Receivables from and Accounts Payable to Related Parties (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	$ 57,976,125	$ 68,182,133
Receivables from related parties Non-current	48,358,915	34,407,142
Accounts payable to related parties Current	130,053,962	159,809,887
Non-Current accounts payable to related parties	1,164,044,462	784,373,484
Endesa Spain [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	31,032	26,979
Enel Global Infrastructure and Network [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	266,732	146,061
Enel Green Power Morocco [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	252,803	94,340
GNL Chile S.A. [Member] | Advance Natural Gas Purchase [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	20,067,363	31,025,024
Receivables from related parties Non-current	48,358,915	34,407,142
GNL Chile S.A. [Member] | Dividends [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	616,697
Enel Iberia SRL [Member] | Engineering Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	42,794	45,069
Enel Italy SrL. [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	534,991	403,854
Enel Global Trading S.p.A [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	216,185	120,276
Enel Global Trading S.p.A [Member] | Gas Sales [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		16,880,527
Enel Global Trading S.p.A [Member] | Commodity Derivatives [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	22,048,245	2,962,387
Enel S.p.A. [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	533,309	467,393
Enel Brasil S A [Member] | Other Services [Member] | Brazil [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	866,928
Enel Brasil S A [Member] | Other Services [Member] | Brazil [Member] | Brazil, Brazil Real
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		705,954
Emgesa S.A. E.S.P. [Member] | Other Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	164,018	105,320
Emgesa S.A. E.S.P. [Member] | Engineering Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	198,066	473,527
Codensa S.A [Member] | Other Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	74,930	26,237
Codensa S.A [Member] | Computer Services [Member] | Colombia [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	322,872
Codensa S.A [Member] | Computer Services [Member] | Colombia [Member] | Colombia, Pesos
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		833,336
Enel Generacin Peru S.A. [Member] | Other Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	404,354	455,544
Enel Generacin Peru S.A. [Member] | Engineering Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	162,252
Enel Generacin Peru S.A. [Member] | Engineering Services [Member] | Peru [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,064,232	725,163
Enel Americas S.A. [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,007,511	1,859,205
Enel Americas S.A. [Member] | Computer Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	410,946	991,564
Enel Green Power Colombia SAS [Member] | Other Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		489,301
Enel Green Power Colombia SAS [Member] | Engineering Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,342,341
Enel Generacin Piura S.A. [Member] | Engineering Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	55,897	60,670
Chinango S.A.C. [Member] | Engineering Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	70,925
Enel Innovation Hubs Srl [Member] | Computer Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	25,362
Enel Green Power Spa [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	2,088	267,422
Enel Green Power Spa [Member] | Other Services [Member] | ITALY | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	653,975	1,509,373
Enel Green Power Spa [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	170,756	1,131,635
Enel Green Power Spa [Member] | Engineering Services [Member] | ITALY | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	395,683
Sociedad Portuaria Central Cartagena S.A. [Member] | Other Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		149,525
Enel Distribución Peru S.A. [Member] | Computer Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	657,232	603,171
Enel Green Power Perú [Member] | Other Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	186,734	1,463,242
Enel Green Power Perú [Member] | Engineering Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	405,030	302,697
Energia Nueva Energía Limpia Mexico S.R.L [Member] | Other Services [Member] | Mexico [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	34,843	108,327
Proyectos y Soluciones Renovables S.A.C. [Member] | Other Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	96,267	60,717
Enel Generacion Costanera S.A. [Member] | Engineering Services [Member] | Argentina [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	155,722	34,771
Enel Generacion El Chocon S.A. [Member] | Engineering Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	11,954	12,589
Enel Green Power Brasil Participacoes LTDA [Member] | Other Services [Member] | Brazil [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	200,977	75,984
Enel Green Power Brasil Participacoes LTDA [Member] | Engineering Services [Member] | Brazil [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	6,714	51,895
Enel Power Argentina [Member] | Other Services [Member] | Argentina [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	269,280	284,876
Energetica Monzon S.A.C. [Member] | Other Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		461,677
Energetica Monzon S.A.C. [Member] | Engineering Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	653,567
Enel Green Power RSA (PTY) LTD [Member] | Other Services [Member] | South Africa [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		385,716
Enel Green Power RSA (PTY) LTD [Member] | Other Services [Member] | South Africa [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		110,699
Enel Green Power North America Inc [Member] | Other Services [Member] | Americas [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		141,708
Enel Green Power North America Inc [Member] | Other Services [Member] | Americas [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		7,381
Empresa Distribuidora Sur S.A. [Member] | Other Services [Member] | Argentina [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	234,834	168,691
Empresa Distribuidora Sur S.A. [Member] | Computer Services [Member] | Argentina [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,080,101	1,136,784
Energia y Servicios South America Spa [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	623,843	341,200
Enel X S.R.L. [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	29,990	26,954
Enel Produzione [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	60,644	13,781
Enel Global Thermal Generation S.r.l. [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	753,544	273,003
Enel North America Inc [Member] | Other Services [Member] | Americas [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	192,582
Enel X North America Inc [Member] | Other Services [Member] | Americas [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	86,685	92,730
Parque Amistad II SA de CV [Member] | Other Services [Member] | Mexico [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		50,264
Parque Amistad IV SA de CV [Member] | Other Services [Member] | Mexico [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		17,590
Renovables de Guatemala S.A. [Member] | Engineering Services [Member] | Guatemala [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,089
Enel Trading Argentina S.R.L. [Member] | Computer Services [Member] | Argentina [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	173,263
Enel AMPCI Ts1 Holdings SpA [Member] | Other Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	8,176
Enel AMPCI Ts1 SpA [Member] | Other Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	41,591
Enel AMPCI Ebus Chile SpA [Member] | Other Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	8,176
Accounts Payables [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	130,053,962	159,809,887
Non-Current accounts payable to related parties	1,164,044,462	784,373,484
Accounts Payables [Member] | Endesa Spain [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	159,940	159,940
Accounts Payables [Member] | Enel Trading Argentina S.R.L. [member] | Other Services [Member] | Argentina [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	94,838	86,189
Accounts Payables [Member] | Enel Global Infrastructure and Network [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	651,662	57,324
Accounts Payables [Member] | Enel Global Infrastructure and Network [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	5,397,360	1,984,129
Accounts Payables [Member] | GNL Chile S.A. [Member] | Gas Purchase [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	14,650,079	4,980,936
Non-Current accounts payable to related parties		2,497,660
Accounts Payables [Member] | Endesa Generacion [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	25,643	25,643
Accounts Payables [Member] | Endesa Generacion [Member] | Engineering Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	190,879	190,879
Accounts Payables [Member] | Enel Iberia SRL [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	891,821	883,576
Accounts Payables [Member] | E-Distribuzione Spa [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		49,488
Accounts Payables [Member] | Enel Italy SrL. [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	676,267	9,115,709
Accounts Payables [Member] | Enel Italy SrL. [Member] | Computer Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	253,605
Accounts Payables [Member] | Enel Italy SrL. [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		6,438,614
Accounts Payables [Member] | Enel Italy IT [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	243,460
Accounts Payables [Member] | Enel Global Trading S.p.A [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	558,964	1,099,133
Accounts Payables [Member] | Enel Global Trading S.p.A [Member] | Commodity Derivatives [Member] | ITALY | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,405,919	9,295,836
Accounts Payables [Member] | Enel Global Trading S.p.A [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	5,042,033	2,857,244
Accounts Payables [Member] | Emgesa S.A. E.S.P. [Member] | Other Services [Member] | Colombia [Member] | Colombia, Pesos
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	4,576	4,723
Accounts Payables [Member] | Codensa S.A [Member] | Other Services [Member] | Colombia [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	35,616	17,950
Accounts Payables [Member] | Enel Americas S.A. [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,285,642	1,909,747
Accounts Payables [Member] | Enel Green Power Spa [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	9,249,143	10,666,792
Accounts Payables [Member] | Enel Green Power Spa [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	17,975,839	12,594,833
Accounts Payables [Member] | Enel Green Power Spa [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	21,206,647	19,758,903
Accounts Payables [Member] | Enel Distribución Peru S.A. [Member] | Other Services [Member] | Peru [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,185	2,291
Accounts Payables [Member] | Enel Energia [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	478,207	452,289
Accounts Payables [Member] | Transmisora Electrica de Quillota Ltda. [Member] | Tolls [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	13,887	13,887
Accounts Payables [Member] | Enel Green Power Spain SL [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	403,225	352,233
Accounts Payables [Member] | Enel Global Services S.r.l [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	640,692
Accounts Payables [Member] | Enel Global Services S.r.l [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	551,776
Accounts Payables [Member] | Enel Global Services S.r.l [Member] | Computer Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	11,719,059
Accounts Payables [Member] | Enel Global Services S.r.l [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	1,154,817
Accounts Payables [Member] | Enel Green Power North America Inc [Member] | Other Services [Member] | Americas [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	315,697	248,051
Accounts Payables [Member] | Enel X S.R.L. [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	130,664	198,815
Accounts Payables [Member] | Enel X S.R.L. [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	4,225,269	147,488
Accounts Payables [Member] | Enel Produzione [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	1,395,436	3,249,960
Accounts Payables [Member] | Enel Produzione [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	1,999,721	2,793,150
Accounts Payables [Member] | Enel Global Thermal Generation S.r.l. [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	947,100	681,544
Accounts Payables [Member] | Enel Global Thermal Generation S.r.l. [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	17,720
Accounts Payables [Member] | Enel Global Thermal Generation S.r.l. [Member] | Computer Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,125,349
Accounts Payables [Member] | Enel Global Thermal Generation S.r.l. [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	4,782,053	3,017,847
Accounts Payables [Member] | Enel S.p.A [Member] | Other Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,516,113	2,965,604
Accounts Payables [Member] | Enel S.p.A [Member] | Dividends [Member] | ITALY | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		55,018,871
Accounts Payables [Member] | Enel S.p.A [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	1,381,313
Accounts Payables [Member] | Enel S.p.A [Member] | Computer Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	263,443
Accounts Payables [Member] | Enel S.p.A [Member] | Technical Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	7,310,421	6,982,284
Accounts Payables [Member] | Enel Finance International NV [Member] | Loan Payable [Member] | Holland [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	3,444,366
Non-Current accounts payable to related parties	1,164,044,462	781,875,824
Accounts Payables [Member] | Enel Finance International NV [Member] | Other Services [Member] | Holland [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		134,278
Accounts Payables [Member] | Enel Green Power Italy [Member] | Other Services [Member] | ITALY | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	459,992
Accounts Payables [Member] | Energía y Servicios South America Spa [Member] | Other Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	42,549	107,037
Accounts Payables [Member] | Energía y Servicios South America Spa [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	345,708	344,877
Accounts Payables [Member] | Energía y Servicios South America Spa [Member] | Engineering Services [Member] | Chile [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	871,748
Accounts Payables [Member] | Energía y Servicios South America Spa [Member] | Engineering Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	60,957
Accounts Payables [Member] | Energia Marina SpA [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		2,357
Accounts Payables [Member] | Cesi S.p.A. [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	247,773	890,343
Accounts Payables [Member] | Tecnatom SA [Member] | Engineering Services [Member] | ITALY | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	73,842	$ 29,093
Accounts Payables [Member] | Enel X Brasil Gerenciamento de Energia Ltda [Member] | Other Services [Member] | Brazil [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	360
Accounts Payables [Member] | Enel Distribución Sao Paulo [Member] | Other Services [Member] | Brazil [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	$ 132,587

Balances and Transactions wit_4

Balances and Transactions with Related Parties - Summary of Significant Transactions and Effect on Income or Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Enel Americas S.A. [Member] | Provision of administration and other services [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	$ 5,021,265	$ 4,748,244	$ 5,071,453
GNL Chile S.A. [Member] | Gas Consumption [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(164,410,577)	(99,801,403)	(131,521,989)
Empresa Electrica Panguipulli S .A. [Member] | Energy Purchases [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses			(1,954,523)
Enel S.p.A [Member] | Technical Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(3,800,471)	(4,110,257)
Enel Green Power Del Sur S p A [Member] | Energy Purchases [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses			(30,205,373)
Parque Eolico Valle De Los Vientos S.A. [Member] | Energy Purchases [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses			(3,349,525)
Enel X S.R.L. [Member] | Technical Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(3,435,918)
Enel Global Services S.r.l [Member] | Engineering Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(5,097,105)
Parque Eolico Tal Tal S.A. [Member] | Energy Purchases [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses			(4,448,833)
Enel Global Trading S.p.A [Member] | Technical Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(2,183,183)	(1,634,832)	(1,213,116)
Enel Global Trading S.p.A [Member] | Gas Sales [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		58,352,346	34,701,425
Enel Global Trading S.p.A [Member] | Commodity Derivatives [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(37,771,702)	(12,118,800)	7,584,772
Enel Global Thermal Generation S.r.l. [Member] | Technical Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(3,172,872)		(1,845,425)
Enel Green Power Spa [Member] | Technical Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(4,674,437)	(3,898,762)	(4,257,363)
Enel Green Power Spa [Member] | Engineering Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(7,263,535)
Enel Finance International NV [Member] | Financial Expense [Member] | Holland [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(35,079,947)	(31,328,749)	(23,253,535)
Enel Italy SrL. [Member] | Technical Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		(3,139,990)	(2,629,893)
Enel Italy SrL. [Member] | Computer Services [Member] | ITALY
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		$ (2,699,915)	$ (1,481,631)
Energía y Servicios South America Spa [Member] | Computer Services [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	$ (2,128,624)

Balances and Transactions wit_5

Balances and Transactions with Related Parties - Additional Information (Detail) $ in Thousands

Jun. 15, 2020USD ($)

Mar. 11, 2020USD ($)

Jan. 03, 2020USD ($)

Dec. 21, 2018USD ($)

Jun. 30, 2019USD ($)

Dec. 31, 2015USD ($)

Dec. 31, 2020CLF ( )directoritem

Dec. 31, 2020CLP ($)directoritem

Dec. 31, 2019CLP ($)

Dec. 31, 2018CLP ($)

Dec. 31, 2020USD ($)

Dec. 31, 2020CLP ($)

Dec. 31, 2019USD ($)

Dec. 31, 2019CLP ($)

Jun. 28, 2019

Disclosure Of Transactions Between Related Parties [Line Items]

Allowance for doubtful accounts between related entities

$ 0

$ 0

Number of members in Board of Directors | director

7

7

Term of service for each director

3 years

3 years

Amounts payable to related parties

$ 130,053,962

$ 159,809,887

Other transactions between the company and its Directors and Group Management

0

Compensation for directors

$ 2,552,181

$ 2,566,731

$ 3,779,308

December 21, 2018, Enel Finance International NV Revolving Credit Facility [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest payment term

6 months

Accrued interest

0

Outstanding debt

400,000,000

284,380,000

400,000,000

299,496,000

Committed amount

$ 400,000,000

Days prior to the prepayment date

10 days

Percentage of fee on margin

35.00%

June 2019, Enel Finance International N.V. Revolving Credit Facility [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Renewal of draft period before obligation expires

5 days

5 days

Margin rate of interest

0.25%

Committed amount

$ 50,000,000

January 3, 2020, Enel Finance International NV Loan [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest payment term

6 months

Accrued interest

0

Outstanding debt

200,000,000

142,190,000

Committed amount

$ 200,000,000

Days prior to the prepayment date

10 days

March 11, 2020, Enel Finance International NV Loan [Member] | Top of Range [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Committed amount

$ 400,000,000

June 15, 2020, Enel Finance International NV Revolving Credit Facility [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Committed amount

$ 290,000,000

Days prior to the prepayment date

5 days

Percentage of fee on margin

0.35%

Libor 6M | December 21, 2018, Enel Finance International NV Revolving Credit Facility [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

1.00%

LIBOR Variable Rate [Member] | June 2019, Enel Finance International N.V. Revolving Credit Facility [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

0.90%

LIBOR Variable Rate [Member] | June 15, 2020, Enel Finance International NV Revolving Credit Facility [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

1.40%

Fixed interest rate [member] | January 3, 2020, Enel Finance International NV Loan [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest rate borrowings

2.60%

Fixed interest rate [member] | March 11, 2020, Enel Finance International NV Loan [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest rate borrowings

3.30%

Enel Chile Board [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Amounts receivable from related parties

0

Amounts payable to related parties

0

Compensation for directors

$ 519,795

515,875

454,471

Enel Chile Board [Member] | Monthly Fee [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Compensation for directors |

216

Enel Chile Board [Member] | Per Diem For Each Meeting

Disclosure Of Transactions Between Related Parties [Line Items]

Compensation for directors |

79.2

Chairman [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Description of compensation transactions

the remuneration of the Chairman of the Board will be twice that of a Director

the remuneration of the Chairman of the Board will be twice that of a Director

Directors Committee [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Description of compensation transactions

Each member will be paid a monthly compensation, one part a fixed monthly fee and another part dependent on meetings attended.

Each member will be paid a monthly compensation, one part a fixed monthly fee and another part dependent on meetings attended.

Compensation for directors

$ 103,959

$ 100,944

$ 93,054

Directors Committee [Member] | Monthly Fee [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Compensation for directors |

72

Directors Committee [Member] | Per Diem For Each Meeting

Disclosure Of Transactions Between Related Parties [Line Items]

Compensation for directors |

26.40

Maximum number of sessions for per diem | item

16

16

Enel Finance International NV [Member] | Enel Green Power Del Sur S p A [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

1.40%

Committed amount

$ 650,000,000

Percentage of fee on margin

35.00%

35.00%

Enel Finance International NV [Member] | Enel Green Power Del Sur S p A [Member] | Libor 6M

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

4.94%

Enel Finance International NV [Member] | Enel Green Power Chile S.A. [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest payment term

6 months

Accrued interest

0

Outstanding debt

$ 644,000,000

$ 458,115,848

$ 644,000,000

$ 482,466,643

Enel Finance International NV [Member] | Enel Green Power Chile S.A. [Member] | Fixed interest rate [member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest rate borrowings

2.82%

2.82%

Enel Finance International NV [Member] | Enel Chile SA [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Interest payment term

6 months

Accrued interest

$ 2,893,567

Outstanding debt

$ 400,000,000

$ 284,380,000

Days prior to the prepayment date

10 days

Balances and Transactions wit_6

Balances and Transactions with Related Parties - Summary of Compensation Paid to Members of the Board of Directors (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	$ 2,552,181	$ 2,566,731	$ 3,779,308
Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	519,795	515,875	454,471
Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,959	100,944	93,054
HermanChadwickPineraMember | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	207,918	206,350	181,789
Fernan Gazmuri Plaza [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,959	103,175	90,894
Fernan Gazmuri Plaza [Member] | Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	34,653	33,648	31,018
Pedro Pablo Cabrera Gaete [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,959	103,175	90,894
Pedro Pablo Cabrera Gaete [Member] | Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	34,653	33,648	31,018
Juan Gerardo Jofre Miranda [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,959	103,175	90,894
Juan Gerardo Jofre Miranda [Member] | Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	$ 34,653	$ 33,648	$ 31,018

Balances and Transactions wit_7

Balances and Transactions with Related Parties - Summary of Compensation Received by Key Management Personnel (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
BALANCES AND TRANSACTIONS WITH RELATED PARTIES
Remuneration	$ 2,133,063	$ 2,357,252	$ 2,959,019
Short-term benefits for employees	272,714	207,391	497,424
Other long-term benefits - IAS	146,404	2,088	322,865
Total	2,552,181	$ 2,566,731	$ 3,779,308
Guaranteed to key management personnel	$ 0

Inventories - Summary of Classe

Inventories - Summary of Classes of Inventories (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
INVENTORIES.
Supplies for Production	$ 5,207,472	$ 18,352,465
Gas	2,280,335	2,287,934
Oil	2,927,137	3,888,712
Coal		12,175,819
Supplies for projects and spare parts	13,468,592	18,073,825
Electrical materials	4,633,965	3,245,960
Total	$ 23,310,029	$ 39,672,250

Inventories - Additional Inform

Inventories - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Property Plant And Equipment [Line Items]
Inventories pledged as security for liabilities	$ 0	$ 0
Raw materials and consumables recognized as fuel expenses	231,176,489	$ 230,944,415	$ 231,028,169
Bocamina II [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Adjustments of impairments of coal inventories	21,246,157
Adjustments of impairments of diesel oil	$ 328,626

Current Tax Assets and Liabil_3

Current Tax Assets and Liabilities - Summary of Current Tax Assets and Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CURRENT TAX ASSETS AND LIABILITIES
Monthly provisional tax payments	$ 34,534,731	$ 38,536,220
Tax credit for absorbed profits		86,068,128
Tax credit for training expenses	503,682	2,668,941
Total	35,038,413	127,273,289
Income tax	72,359,944	17,995,833
Total	$ 72,359,944	$ 17,995,833

Investments Accounted for Usi_3

Investments Accounted for Using the Equity Method - Summary of Changes in Investments in Associates and Joint Ventures Accounted For Using the Equity Method (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Investments accounted for using Equity Method, Beginning balance	$ 7,928,588	$ 12,873,531
Additions	2,727,091	131,647
Share of Profit (Loss)	3,509,392	366,089
Dividends Declared	(686,058)	(5,588,800)
Foreign Currency Translation	(642,590)	34,509
Other Comprehensive Income	18,982
Other Increase (Decrease)	84,284	111,612
Investments accounted for using Equity Method, before negative equity provision Ending balance	12,939,689	7,928,588
Negative Equity Provision	53,114
Investments accounted for using Equity Method, Ending balance	$ 12,992,803	$ 7,928,588
Transmisora Electrica de Quillota Ltda. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	50.00%	50.00%
Investments accounted for using Equity Method, Beginning balance	$ 6,099,228	$ 9,473,711
Share of Profit (Loss)	1,351,965	695,437
Dividends Declared		(4,069,920)
Investments accounted for using Equity Method, before negative equity provision Ending balance	7,451,193	6,099,228
Investments accounted for using Equity Method, Ending balance	$ 7,451,193	$ 6,099,228
GNL Chile S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	33.33%	33.33%
Investments accounted for using Equity Method, Beginning balance	$ 1,410,206	$ 3,052,983
Share of Profit (Loss)	1,127,312	(254,132)
Dividends Declared	(686,058)	(1,518,880)
Foreign Currency Translation	(122,077)	130,235
Investments accounted for using Equity Method, before negative equity provision Ending balance	1,729,383	1,410,206
Investments accounted for using Equity Method, Ending balance	$ 1,729,383	$ 1,410,206
Enel Argentina S A
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	0.0793%	0.0793%
Investments accounted for using Equity Method, Beginning balance	$ 401,908	$ 300,198
Share of Profit (Loss)	15,333	104,335
Foreign Currency Translation	(130,962)	(95,726)
Other Increase (Decrease)	84,284	93,101
Investments accounted for using Equity Method, before negative equity provision Ending balance	370,563	401,908
Investments accounted for using Equity Method, Ending balance	$ 370,563	$ 401,908
Energía Marina SpA [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	25.00%	25.00%
Investments accounted for using Equity Method, Beginning balance	$ 17,246	$ 46,639
Additions		131,647
Share of Profit (Loss)	(70,360)	(179,551)
Other Increase (Decrease)		18,511
Investments accounted for using Equity Method, before negative equity provision Ending balance	(53,114)	17,246
Negative Equity Provision	$ 53,114
Investments accounted for using Equity Method, Ending balance		$ 17,246
Enel AMPCI Ebus Chile SpA [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	20.00%
Additions	$ 2,727,091
Share of Profit (Loss)	1,085,142
Foreign Currency Translation	(389,551)
Other Comprehensive Income	18,982
Investments accounted for using Equity Method, before negative equity provision Ending balance	3,441,664
Investments accounted for using Equity Method, Ending balance	$ 3,441,664

Investments Accounted for Usi_4

Investments Accounted for Using the Equity Method - Additional Information (Detail)	Dec. 31, 2020CLP ($)
Joint Ventures [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Consideration funds	$ 0
Associates [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Consideration funds	$ 0

Investments Accounted for Usi_5

Investments Accounted for Using the Equity Method - Summary of Financial Information from Financial Statements of Investments in Associates (Detail) - CLP ($) $ in Thousands	Jun. 11, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Current Assets		$ 1,026,401,196	$ 1,018,212,660
Non-current Assets		6,878,070,388	6,839,775,504
Current Liabilities		1,045,480,165	1,041,299,852
Non-current Liabilities		3,264,716,920	3,069,404,660
Revenues		2,548,384,317	2,624,576,323	$ 2,410,360,459
(LOSS) PROFIT		(52,386,835)	316,093,218	412,847,757
Other Comprehensive Income		119,355,961	(34,855,794)	(53,736,400)
Comprehensive Income		$ 66,969,126	$ 281,237,424	$ 359,111,357
GNL Chile S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest Direct Indirect		33.33%	33.33%
Current Assets		$ 57,032,080	$ 67,419,256
Non-current Assets		1,433,019,578	1,615,973,312
Current Liabilities		117,974,825	161,197,047
Non-current Liabilities		1,366,888,682	1,517,964,903
Revenues		553,288,674	582,441,735
Expenses		(549,906,739)	(583,204,131)
(LOSS) PROFIT		3,381,935	(762,396)
Other Comprehensive Income		(366,207)	389,843
Comprehensive Income		$ 3,015,728	$ (372,553)
Enel AMPCI Ebus Chile SpA [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest Direct Indirect	20.00%	20.00%
Current Assets		$ 20,007,409
Non-current Assets		93,871,600
Current Liabilities		15,101,345
Non-current Liabilities		81,569,344
Revenues		7,503,692
Expenses		(2,077,983)
(LOSS) PROFIT		5,425,709
Comprehensive Income		$ 5,425,709

Investments Accounted for Usi_6

Investments Accounted for Using the Equity Method - Summary of Financial Information from Financial Statements of Joint Ventures (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Current Assets	$ 1,026,401,196	$ 1,018,212,660
Non-current Assets	6,878,070,388	6,839,775,504
Current Liabilities	1,045,480,165	1,041,299,852
Non-current Liabilities	3,264,716,920	3,069,404,660
Cash and cash equivalents	332,036,013	235,684,500
Revenues	2,548,384,317	2,624,576,323	$ 2,410,360,459
Depreciation and amortization expense	(229,957,019)	(236,627,387)	(215,187,300)
Income tax expense	81,305,107	(61,227,904)	(153,482,519)
Profit (loss)	(52,386,835)	316,093,218	412,847,757
Comprehensive Income	$ 66,969,126	$ 281,237,424	$ 359,111,357
Transmisora Electrica de Quillota Ltda. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership interest	50.00%	50.00%
Current Assets	$ 7,157,805	$ 3,346,667
Non-current Assets	10,068,936	10,834,220
Current Liabilities	806,841	365,640
Non-current Liabilities	1,517,515	1,616,791
Cash and cash equivalents	4,261,166	2,403,904
Revenues	4,643,283	3,191,566
Other fixed operating expenses	(268,806)	(768,866)
Depreciation and amortization expense	(782,799)	(782,800)
Other Income	4,187	6,087
Interest income	29,103	152,370
Income tax expense	(921,039)	(407,478)
Profit (loss)	2,703,929	1,390,879
Comprehensive Income	$ 2,703,929	$ 1,390,879

Intangible Assets Other Than _3

Intangible Assets Other Than Goodwill - Summary of Intangible Assets (Detail) $ in Thousands, in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Disclosure Of Intangible Assets [Line Items]
Intangible assets	165,114,521	$ 165,114,521	132,278,593	$ 132,278,593	$ 115,372,393
Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	275,527,801		229,944,365
Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	(110,413,280)		(97,665,772)
Intangible Assets, Net [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets | $		165,114,521		132,278,593
Easements and Water Rights [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	15,032,077		17,352,892	17,352,892	17,736,954
Easements and Water Rights [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	20,551,471		22,553,618
Easements and Water Rights [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	(5,519,394)		(5,200,726)
Easements and Water Rights [Member] | Intangible Assets, Net [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets | $		15,032,077		17,352,892
Concession [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	43,584,113		26,156,419	26,156,419	25,953,878
Concession [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	53,053,457		34,718,676
Concession [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	(9,469,344)		(8,562,257)
Concession [Member] | Intangible Assets, Net [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets | $		43,584,113		26,156,419
Patents, Registered Trademarks and Other Rights
Disclosure Of Intangible Assets [Line Items]
Intangible assets	200,995		316,970	316,970	7,394
Patents, Registered Trademarks and Other Rights | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	679,227		771,002
Patents, Registered Trademarks and Other Rights | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	(478,232)		(454,032)
Patents, Registered Trademarks and Other Rights | Intangible Assets, Net [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets | $		200,995		316,970
Computer Software [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	94,668,184		76,162,800	76,162,800	60,067,635
Computer Software [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	186,855,438		156,836,017
Computer Software [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	(92,187,254)		(80,673,217)
Computer Software [Member] | Intangible Assets, Net [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets | $		94,668,184		76,162,800
Other Identifiable Intangible Assets [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	11,629,152		12,289,512	12,289,512	$ 11,606,532
Other Identifiable Intangible Assets [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	14,388,208		15,065,052
Other Identifiable Intangible Assets [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	(2,759,056)		(2,775,540)
Other Identifiable Intangible Assets [Member] | Intangible Assets, Net [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets | $		$ 11,629,152		$ 12,289,512

Intangible Assets Other Than _4

Intangible Assets Other Than Goodwill - Summary of Reconciliations of the Carrying Amounts of Intangible Assets (Detail) $ in Thousands, in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020CLP ($)	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	$ 132,278,593	132,278,593	$ 132,278,593	$ 115,372,393
Changes in identifiable intangible assets
Increases other than from business combinations		55,343,609		25,208,199
Increase (decrease) from foreign currency translation differences		(4,741,373)		3,537,237
Amortization		(14,375,081)		(11,903,007)
Impairment loss recognized in profit or loss		(217,658)
Disposals and removals from service		(1,616,582)
Removals from service		(1,616,582)
Argentina Hyperinflation Effect		142		203
Other Increases (decreases)		(1,557,129)		63,568
Total changes in identifiable intangible assets		32,835,928		16,906,200
Ending balance		165,114,521	165,114,521	132,278,593	$ 115,372,393
Impairment Loss | $	378,993		0	0	0
Easements and Water Rights [Member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	17,352,892	17,352,892	17,352,892	17,736,954
Changes in identifiable intangible assets
Increase (decrease) from foreign currency translation differences		(239,991)		425,373
Amortization		(556,017)		(809,435)
Increases (decreases) from transfers and other changes		91,775
Increases (decreases) from transfers		91,775
Disposals and removals from service		(1,616,582)
Removals from service		(1,616,582)
Total changes in identifiable intangible assets		(2,320,815)		(384,062)
Ending balance		15,032,077		17,352,892	17,736,954
Concession [Member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	26,156,419	26,156,419	26,156,419	25,953,878
Changes in identifiable intangible assets
Increases other than from business combinations		23,221,080
Increase (decrease) from foreign currency translation differences		(3,566,641)		2,028,583
Amortization		(2,009,087)		(1,826,042)
Impairment loss recognized in profit or loss		(217,658)
Total changes in identifiable intangible assets		17,427,694		202,541
Ending balance		43,584,113		26,156,419	25,953,878
Patents, Registered Trademarks and Other Rights
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	316,970	316,970	316,970	7,394
Changes in identifiable intangible assets
Amortization		(24,200)		(24,200)
Increases (decreases) from transfers and other changes		(91,775)		333,776
Increases (decreases) from transfers		(91,775)		333,776
Total changes in identifiable intangible assets		(115,975)		309,576
Ending balance		200,995		316,970	7,394
Computer Software [Member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	76,162,800	76,162,800	76,162,800	60,067,635
Changes in identifiable intangible assets
Increases other than from business combinations		32,122,529		25,208,199
Increase (decrease) from foreign currency translation differences		(273,172)		156,906
Amortization		(11,785,777)		(9,241,732)
Increases (decreases) from transfers and other changes		(1,067)		(91,776)
Increases (decreases) from transfers		(1,067)		(91,776)
Other Increases (decreases)		(1,557,129)		63,568
Total changes in identifiable intangible assets		18,505,384		16,095,165
Ending balance		94,668,184		76,162,800	60,067,635
Other Identifiable Intangible Assets [Member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	$ 12,289,512	12,289,512	$ 12,289,512	11,606,532
Changes in identifiable intangible assets
Increase (decrease) from foreign currency translation differences		(661,569)		926,375
Amortization | $				(1,598)
Increases (decreases) from transfers and other changes		1,067		(242,000)
Increases (decreases) from transfers		1,067		(242,000)
Argentina Hyperinflation Effect		142		203
Total changes in identifiable intangible assets		(660,360)		682,980
Ending balance		11,629,152		$ 12,289,512	$ 11,606,532

Goodwill - Summary of Goodwill

Goodwill - Summary of Goodwill by the Cash-Generating Unit or Group of Cash-Generating Units (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	$ 917,352,974	$ 915,044,725
Foreign currency exchange difference	(1,647,605)	2,308,249
Closing balance	915,705,369	917,352,974
Empresa Electrica de Colina Ltda. [Member] | Empresa Electrica de Colina Ltda. [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	2,240,478	2,240,478
Foreign currency exchange difference	0	0
Closing balance	2,240,478	2,240,478
Enel Distribucion Chile S.A. [Member] | Enel Distribucion Chile [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	128,374,362	128,374,362
Foreign currency exchange difference	0	0
Closing balance	128,374,362	128,374,362
Enel Generación Chile S.A. [Member] | Enel Generacion Chile [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	756,642,815	731,782,459
Transfer Merger by Absorption		24,860,356
Foreign currency exchange difference	0	0
Closing balance	756,642,815	756,642,815
GasAtacama Chile [Member] | Enel Generacion Chile [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	0	24,860,356
Transfer Merger by Absorption		(24,860,356)
Foreign currency exchange difference	0	0
Closing balance	0	0
Almeyda Solar Spa [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	21,820,403	20,146,823
Foreign currency exchange difference	(1,194,585)	1,673,580
Closing balance	20,625,818	21,820,403
Geotérmica del Norte [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	81,930	75,646
Foreign currency exchange difference	(4,485)	6,284
Closing balance	77,445	81,930
Parque Eólico Talinay Oriente [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Information For Individual Asset Or Cashgenerating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Opening balance	8,192,986	7,564,601
Foreign currency exchange difference	(448,535)	628,385
Closing balance	$ 7,744,451	$ 8,192,986

Goodwill - Additional Informati

Goodwill - Additional Information (Detail)	Apr. 22, 2014	Aug. 11, 2005	Jul. 12, 2002	May 11, 1999	Nov. 30, 2000	Dec. 31, 1996
Empresa Electrica de Colina Ltda. [Member]
Disclosure Of Information About Goodwill [Line Items]
Acquisition percentage from investment company						100.00%
Enel Distribucion Chile S.A. [Member]
Disclosure Of Information About Goodwill [Line Items]
Additional ownership percentage					25.40%
Ownership interest in subsidiary					99.99%
Enel Generación Chile S.A. [Member]
Disclosure Of Information About Goodwill [Line Items]
Additional ownership percentage				35.00%
Additional ownership percentage through stock exchange.				30.00%
Additional ownership percentage through other parties				5.00%
Ownership interest in subsidiary				60.00%
GasAtacama Chile S.A. [Member]
Disclosure Of Information About Goodwill [Line Items]
Ownership interest in subsidiary	50.00%	25.00%
Percentage of acquisition through put option			2.51%

Property Plant and Equipment -

Property Plant and Equipment - Summary of Property Plant and Equipment (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	$ 5,033,496,472	$ 5,304,476,114	$ 5,290,992,961
Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	9,768,708,590	9,225,653,590
Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(4,735,212,118)	(3,921,177,476)
Construction in Progress [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,567,685,720	1,048,988,931	862,274,093
Construction in Progress [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,567,685,720	1,048,988,931
Land [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	78,366,909	77,754,923	74,753,283
Land [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	78,366,909	77,754,923
Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	418,161,416	420,319,759	384,027,047
Buildings [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	562,807,945	531,250,194
Buildings [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(144,646,529)	(110,930,435)
Plant and Equipment [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(3,871,912,436)	(3,106,167,890)
Generation Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	2,120,471,695	2,895,992,861	3,143,869,929
Generation Plant and Equipment [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	5,992,384,131	6,002,160,751
Network Infrastructure [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	794,179,988	809,428,974	764,095,247
Network Infrastructure [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,378,810,834	1,396,996,724
Network Infrastructure [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(584,630,846)	(587,567,750)
Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	53,452,462	47,758,908	55,091,617
Fixtures and Fittings [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	171,396,847	150,242,089
Fixtures and Fittings [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(117,944,385)	(102,483,181)
Other Property, Plant and Equipment Under Financial Lease [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,178,282	4,231,758	$ 6,881,745
Other Property, Plant and Equipment Under Financial Lease [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	17,256,204	18,259,978
Other Property, Plant and Equipment Under Financial Lease [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	$ (16,077,922)	$ (14,028,220)

Property Plant and Equipment _2

Property Plant and Equipment - Summary of Changes in Property Plant and Equipment (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	$ 5,304,476,114	$ 5,290,992,961
Ending balance	5,033,496,472	5,304,476,114
Changes:
Increases other than from business combinations	745,608,250	320,298,423
Increases (decreases) from foreign currency translation differences	(132,630,964)	125,535,582
Depreciation	(211,528,014)	(221,383,299)
Impairment losses recognized in profit or loss for the period	(698,235,380)	(280,020,263)
Disposals and removals from service	(11,877,815)	(4,865,597)
Disposals	(8,842,306)	(1,355,006)
Removals	(3,035,509)	(3,510,591)
Other increases (decreases)	36,919,299	72,838,389
Argentina Hyperinflationary economy	764,982	1,079,918
Total changes	(270,979,642)	13,483,153
Construction in Progress [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	1,048,988,931	862,274,093
Ending balance	1,567,685,720	1,048,988,931
Changes:
Increases other than from business combinations	744,544,601	320,298,423
Increases (decreases) from foreign currency translation differences	(57,958,736)	9,880,815
Impairment losses recognized in profit or loss for the period	(45,596,397)	(32,967,462)
Increases (decreases) from transfers and other changes	(57,868,918)	(121,288,336)
Increases (decreases) for transfers	(57,868,918)	(121,288,336)
Disposals and removals from service	(1,425,412)
Removals	(1,425,412)
Other increases (decreases)	(63,014,492)	10,843,933
Argentina Hyperinflationary economy	16,143	(52,535)
Total changes	518,696,789	186,714,838
Land [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	77,754,923	74,753,283
Ending balance	78,366,909	77,754,923
Changes:
Increases (decreases) from foreign currency translation differences	28,352	36,282
Increases (decreases) from transfers and other changes	59,304	4,151,834
Increases (decreases) for transfers	59,304	4,151,834
Disposals and removals from service		(406,656)
Disposals		(406,656)
Other increases (decreases)	489,124	(779,820)
Argentina Hyperinflationary economy	35,206
Total changes	611,986	3,001,640
Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	420,319,759	384,027,047
Ending balance	418,161,416	420,319,759
Changes:
Increases other than from business combinations	151,195
Increases (decreases) from foreign currency translation differences	(19,184,500)	29,731,649
Depreciation	(20,527,447)	(17,944,173)
Increases (decreases) from transfers and other changes	11,483,868	22,879,420
Increases (decreases) for transfers	11,483,868	22,879,420
Disposals and removals from service		(792,638)
Removals		(792,638)
Other increases (decreases)	25,862,428	2,418,454
Argentina Hyperinflationary economy	56,113
Total changes	(2,158,343)	36,292,712
Generation Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	2,895,992,861	3,143,869,929
Ending balance	2,120,471,695	2,895,992,861
Changes:
Increases other than from business combinations	691,268
Increases (decreases) from foreign currency translation differences	(54,569,811)	81,221,513
Depreciation	(144,943,455)	(159,163,293)
Impairment losses recognized in profit or loss for the period	(652,638,983)	(247,052,801)
Increases (decreases) from transfers and other changes	41,125,722	17,534,668
Increases (decreases) for transfers	41,125,722	17,534,668
Disposals and removals from service	(1,942,587)	(948,350)
Disposals	(1,942,587)	(948,350)
Other increases (decreases)	36,315,417	59,398,742
Argentina Hyperinflationary economy	441,263	1,132,453
Total changes	(775,521,166)	(247,877,068)
Network Infrastructure [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	809,428,974	764,095,247
Ending balance	794,179,988	809,428,974
Changes:
Increases other than from business combinations	101,862
Increases (decreases) from foreign currency translation differences	(3,320,508)	4,238,408
Depreciation	(36,650,102)	(34,964,877)
Increases (decreases) from transfers and other changes		74,941,622
Increases (decreases) for transfers		74,941,622
Disposals and removals from service	(8,509,816)	(1,880,608)
Disposals	(6,899,719)
Removals	(1,610,097)	(1,880,608)
Other increases (decreases)	33,129,578	2,999,182
Total changes	(15,248,986)	45,333,727
Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	47,758,908	55,091,617
Ending balance	53,452,462	47,758,908
Changes:
Increases other than from business combinations	119,324
Increases (decreases) from foreign currency translation differences	2,286,520	65,341
Depreciation	(6,265,815)	(6,299,395)
Increases (decreases) from transfers and other changes	5,200,024	1,780,792
Increases (decreases) for transfers	5,200,024	1,780,792
Disposals and removals from service		(837,345)
Removals		(837,345)
Other increases (decreases)	4,137,244	(2,042,102)
Argentina Hyperinflationary economy	216,257
Total changes	5,693,554	(7,332,709)
Other Property, Plant and Equipment Under Financial Lease [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	4,231,758	6,881,745
Ending balance	1,178,282	4,231,758
Changes:
Increases (decreases) from foreign currency translation differences	87,719	361,574
Depreciation	(3,141,195)	(3,011,561)
Total changes	$ (3,053,476)	$ (2,649,987)

Property Plant and Equipment _3

Property Plant and Equipment - Additional Information (Detail) $ in Thousands, € in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020CLP ($)	Dec. 31, 2020CLP ($)GWMW	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2020EUR (€)	Dec. 31, 2020CLP ($)
Disclosure Of Property Plant And Equipment [Line Items]
Additions to property plant and equipment, investments in operating plants and new projects		$ 745,608,250	$ 320,298,423
Capitalized borrowing costs		33,109,819	$ 9,321,354	$ 6,435,646
Weighted average borrowing rate			5.86%
Carrying amount			$ 5,304,476,114	5,290,992,961		$ 5,033,496,472
Cash disbursements		780,827,755	543,844,674
Contractual commitments for the acquisition of property, plants and equipment			185,457,682			303,709,257
Property, plant and equipment pledged as security for liabilities			0			0
Impairment loss recognised	$ 378,993	0	0	0
Write Off Of Property Plant And Equipment			1,629,983
Depreciation		211,528,014	221,383,299
Retirement of property plant and equipment			1,880,608
Write-off Property, Plant and Equipment			3,510,591
Construction in Progress [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Additions to property plant and equipment, investments in operating plants and new projects		744,544,601	320,298,423
Capitalized borrowing costs		25,539,316	17,610,861	16,710,963
Carrying amount			1,048,988,931	862,274,093		1,567,685,720
Networks, investments in operating plants and new projects under construction
Disclosure Of Property Plant And Equipment [Line Items]
Additions to property plant and equipment, investments in operating plants and new projects		$ 1,567,685,720	1,048,988,931
Hydroelectric Power Plant [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Carrying amount			541,401,896			637,303,224
Installed capacity of power plant | MW		150
Sol de Lila, Azabache, Domeyko, Valle del Sol, Finis Terrae, Renaico II, Cerro Pabellón and Campos del Sol projects [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Carrying amount			17,485,325			436,164,981
Installed capacity of power plant | GW		1.3
Tarapaca Plant [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Recoverable amount after impairment						1,613,803
Impairment loss recognised			197,188,542
Bocamina I [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Recoverable amount after impairment			6,362,581
Impairment loss recognised			82,831,721
Bocamina II [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Recoverable amount after impairment						2,014,684
Impairment loss recognised		$ 697,856,387
Depreciation			4,083,855
Land [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Carrying amount			77,754,923	$ 74,753,283		78,366,909
Distribution [Member] | Construction in Progress [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Carrying amount			$ 173,566,099			148,835,155
Generating Companies [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Insurance Policies Amount For All Risks					€ 1,000	873,300,000
Third Party Damages Insurance [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Civil Liability Insurance Amount					500	436,650,000
Environmental Damages Insurance [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Civil Liability Insurance Amount					€ 20	$ 17,466,000
Bottom of Range [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Weighted average borrowing rate		4.60%
Top of Range [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Weighted average borrowing rate		6.84%

Investment Property - Summary o

Investment Property - Summary of Changes in Investment Property (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Investment Property [Line Items]
Beginning balance	$ 6,795,155	$ 7,557,356
Depreciation expense	(19,812)	(19,812)
Impairment loss recognized in the income statement	646,597	(742,389)	$ (779,825)
Reversals of impairment recognized in the income statement	646,597
Ending balance	7,421,940	6,795,155	7,557,356
Gross Carrying Amount [Member]
Disclosure Of Investment Property [Line Items]
Beginning balance	9,189,377	9,189,377
Ending balance	9,189,377	9,189,377	9,189,377
Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Investment Property [Line Items]
Beginning balance	(2,394,222)	(1,632,021)
Depreciation expense	(19,812)	(19,812)
Impairment loss recognized in the income statement		(742,389)
Reversals of impairment recognized in the income statement	646,597
Ending balance	$ (1,767,437)	$ (2,394,222)	$ (1,632,021)

Investment Property - Additiona

Investment Property - Additional Information (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about investment property [Line Items]
Investment property	$ 7,421,940	$ 6,795,155	$ 7,557,356
Level 3 [Member]
Disclosure of detailed information about investment property [Line Items]
Investment property	8,484,901
At fair value [member]
Disclosure of detailed information about investment property [Line Items]
Investment property	$ 8,484,901	$ 7,880,432

Investment Property - Summary_2

Investment Property - Summary of Income and Expenses from Investment Properties (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Rental Income From Investment Property Net Of Direct Operating Expense [Abstract]
Income derived from rental income from investment properties	$ 196,955	$ 202,896	$ 204,166
Income derived from rental income from investment properties	(36,761)	(44,136)	(56,327)
Total	$ 160,194	$ 158,760	$ 147,839

Right-of-use assets - Changes (

Right-of-use assets - Changes (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Movements In Right Of Use Assets [Roll Forward]
Opening balance	$ 55,843,510
Closing balance	55,502,192	$ 55,843,510
Land [Member]
Movements In Right Of Use Assets [Roll Forward]
Opening balance	34,081,799	2,758
New assets contracts, by right-of use	213,445
Increases (decreases) from foreign currency translation differences, net	830,349	1,537,867
Depreciation	(1,894,646)	(1,482,706)
New agreements (decreases)	356,444	10,926,113
Other increases (decreases)	(707,853)
Total changes		10,981,274
Closing balance	33,373,946	34,081,799
Land [Member] | Adjusted Balance
Movements In Right Of Use Assets [Roll Forward]
Opening balance		23,100,525
Land [Member] | Adjustment
Movements In Right Of Use Assets [Roll Forward]
Opening balance		23,097,767
Other Property, Plant and Equipment Under Financial Lease [Member]
Movements In Right Of Use Assets [Roll Forward]
Opening balance	21,761,711	17,651,914
New assets contracts, by right-of use	2,491,480
Increases (decreases) from foreign currency translation differences, net	157,520
Depreciation	(2,139,466)	(1,838,562)
New agreements (decreases)	(356,444)	231,984
Other increases (decreases)	(2,338,390)
Total changes		(1,606,578)
Closing balance	19,423,321	21,761,711
Other Property, Plant and Equipment Under Financial Lease [Member] | Adjusted Balance
Movements In Right Of Use Assets [Roll Forward]
Opening balance		23,368,289
Other Property, Plant and Equipment Under Financial Lease [Member] | Adjustment
Movements In Right Of Use Assets [Roll Forward]
Opening balance		5,716,375
Right-of-use assets [member]
Movements In Right Of Use Assets [Roll Forward]
Opening balance	55,843,510	17,654,672
New assets contracts, by right-of use	2,704,925
Increases (decreases) from foreign currency translation differences, net	987,869	1,537,867
Depreciation	(4,034,112)	(3,321,268)
New agreements (decreases)		11,158,097
Other increases (decreases)	(341,318)
Total changes		9,374,696
Closing balance	$ 55,502,192	55,843,510
Right-of-use assets [member] | Adjusted Balance
Movements In Right Of Use Assets [Roll Forward]
Opening balance		46,468,814
Right-of-use assets [member] | Adjustment
Movements In Right Of Use Assets [Roll Forward]
Opening balance		$ 28,814,142

Right-of-use assets - Schedule

Right-of-use assets - Schedule of Future Lease Payments Finance Leases (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	$ 67,710,443	$ 69,808,977
Gross Carrying Amount [Member] | Less Than One Year [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	8,783,640	7,602,720
Gross Carrying Amount [Member] | One to Two Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	6,583,269	6,234,867
Gross Carrying Amount [Member] | Two to Three Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	8,399,111	6,049,847
Gross Carrying Amount [Member] | Three to Four Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	3,271,835	8,326,858
Gross Carrying Amount [Member] | Four to Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	3,077,572	2,964,375
Gross Carrying Amount [Member] | More Than Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	37,595,016	38,630,310
Interest [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	15,844,925	16,401,288
Interest [Member] | Less Than One Year [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,775,929	1,760,705
Interest [Member] | One to Two Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,546,496	1,719,045
Interest [Member] | Two to Three Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,332,024	1,484,321
Interest [Member] | Three to Four Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,245,169	1,265,224
Interest [Member] | Four to Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,174,438	1,180,435
Interest [Member] | More Than Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	8,770,869	8,991,558
Present Value [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	51,865,518	53,407,689
Present Value [Member] | Less Than One Year [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	7,007,711	5,842,015
Present Value [Member] | One to Two Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	5,036,773	4,515,822
Present Value [Member] | Two to Three Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	7,067,087	4,565,526
Present Value [Member] | Three to Four Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	2,026,666	7,061,634
Present Value [Member] | Four to Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,903,134	1,783,940
Present Value [Member] | More Than Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	$ 28,824,147	$ 29,638,752

Right-of-use assets - Schedul_2

Right-of-use assets - Schedule of Total Future Lease Payments (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Future Minimum Lease Payments [Line Items]
Future lease payments	$ 4,813,265	$ 3,485,151
Less Than One Year [Member]
Disclosure Of Future Minimum Lease Payments [Line Items]
Future lease payments	$ 4,813,265	$ 3,485,151

Right-of-use assets - Additiona

Right-of-use assets - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure Of Property Plant And Equipment [Line Items]
Lease agreement period	20 years
Annual interest rate	6.50%
Amount of short term and variable lease payments exempted	$ 4,958,760	$ 3,824,195
Short term lease expense exempted	3,334,241	1,995,392
Variable lease expense exempted	1,624,519	1,828,803
Right of use assets recognized	55,502,192	55,843,510
Right-of-use assets [member]
Disclosure Of Property Plant And Equipment [Line Items]
Right of use assets recognized	$ 55,502,192	$ 55,843,510	$ 28,814,142	$ 17,654,672

Income Tax and Deferred Taxes -

Income Tax and Deferred Taxes - Components of Income Tax (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Major Components Of Tax Expense Income [Abstract]
Current income tax	$ (155,196,656)	$ (54,904,679)	$ (47,354,780)
Adjustments to current tax from the previous period	3,694,656	(2,251,167)	(6,304,285)
Current tax (expenses) / benefit (related to cash flow hedges)	72,354,119	(36,172,878)	(60,650,786)
Other current tax benefit / (expense)	(98,646)	(1,197,052)	(856,466)
Current tax expense, net	(79,246,527)	(94,525,776)	(115,166,317)
Benefit / (expense) from deferred taxes for origination and reversal of temporary differences	160,551,634	33,297,872	(43,134,500)
Adjustments to deferred taxes from the previous period			4,818,298
Total deferred tax benefit / (expense)	160,551,634	33,297,872	(38,316,202)
Income tax benefit (expense)	$ 81,305,107	$ (61,227,904)	$ (153,482,519)

Income Tax and Deferred Taxes_2

Income Tax and Deferred Taxes - Summary of Reconciliation of Tax Expense (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Major Components Of Tax Expense Income [Abstract]
Total tax income (expense) using statutory rate	27.00%	(27.00%)	(27.00%)
Tax effect of rates applied in other countries		0.06%
Tax effect of tax-exempt revenue and other positive effects impacting the effective rate	31.83%	11.30%	0.31%
Tax effect of non-deductible expenses for determining taxable profit (loss)	(7.32%)	(2.76%)	(2.26%)
Tax effect of adjustments to taxes in previous periods	2.76%	(0.60%)	(1.11%)
Adjustments for prior periods deferred taxes			0.85%
Price level restatement for tax purposes (investments and equity)	6.54%	2.76%	2.11%
Total adjustments to tax expense using statutory rate	33.82%	10.77%	(0.10%)
Income tax benefit (expense)	60.82%	(16.23%)	(27.10%)
ACCOUNTING INCOME BEFORE TAX	$ (133,691,942)	$ 377,321,122	$ 566,330,276
Total tax income (expense) using statutory rate	36,096,825	(101,876,703)	(152,909,175)
Tax effect of rates applied in other countries		(232,897)
Tax effect of tax-exempt revenue and other positive effects impacting the effective rate	42,557,794	42,638,986	1,746,052
Tax effect of non-deductible expenses for determining taxable profit (loss)	(9,790,603)	(10,399,776)	(12,786,965)
Tax effect of adjustments to income taxes in previous periods	3,694,656	(2,251,167)	(6,304,285)
Adjustments for prior periods deferred taxes			4,818,298
Price level restatement for tax purposes (investments and equity)	8,746,435	10,427,859	11,953,556
Total adjustments to tax expense using statutory rate	45,208,282	40,648,799	(573,344)
Income tax benefit (expense)	$ 81,305,107	$ (61,227,904)	$ (153,482,519)

Income Tax and Deferred Taxes_3

Income Tax and Deferred Taxes - Summary of Origination and Changes in Deferred Tax Assets and Liabilities (Detail) $ in Thousands, in Thousands	12 Months Ended
	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Disclosure Of Income Taxes [Line Items]
Assets | $						$ 108,013,945	$ 21,848,239
Liabilities | $						$ (168,057,562)	$ (249,284,641)
Beginning balance	(227,436,402)		(258,908,824)
Recognized in profit or loss			33,297,873
Recognized in others in comprehensive income		$ 70,430,145	2,811,360	$ (38,984,238)	$ (60,640,669)
Foreign currency translation difference			1,330,258
Other increases (decreases)			(5,967,069)
Ending balance			(227,436,402)
Depreciations [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	(393,801,615)		(349,976,401)
Recognized in profit or loss			(5,668,543)
Foreign currency translation difference			(1,561,204)
Other increases (decreases)			(36,595,467)
Ending balance			(393,801,615)
Obligations for post-employment benefits [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	7,738,233		5,709,648
Recognized in profit or loss			126,352
Recognized in others in comprehensive income			2,099,845
Other increases (decreases)			(197,612)
Ending balance			7,738,233
Revaluations of financial instruments [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	456,888
Recognized in others in comprehensive income			710,523
Other increases (decreases)			(253,635)
Ending balance			456,888
Tax Loss [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	81,154,636		36,921,157
Recognized in profit or loss			14,343,314
Foreign currency translation difference			2,096,339
Other increases (decreases)			27,793,826
Ending balance			81,154,636
Provisions [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	87,275,541		55,080,385
Recognized in profit or loss			24,123,136
Foreign currency translation difference			795,123
Other increases (decreases)			7,276,897
Ending balance			87,275,541
Dismantling Provision [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	44,485,711		23,627,264
Recognized in profit or loss			20,711,621
Foreign currency translation difference			34,574
Other increases (decreases)			112,252
Ending balance			44,485,711
Provision for Civil Contingencies [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	3,502,161		4,108,710
Recognized in profit or loss			(606,549)
Ending balance			3,502,161
Provision Contingencies Workers [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	492,522		430,900
Recognized in profit or loss			61,622
Ending balance			492,522
Provision for doubtful trade accounts [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	14,555,712		13,253,612
Recognized in profit or loss			1,302,403
Foreign currency translation difference			128
Other increases (decreases)			(431)
Ending balance			14,555,712
Provision of Human Resources accounts [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	7,859,341		7,432,939
Recognized in profit or loss			3,233,471
Foreign currency translation difference			(13,109)
Other increases (decreases)			(2,793,960)
Ending balance			7,859,341
Other provisions [member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	16,380,094		6,226,960
Recognized in profit or loss			(579,432)
Foreign currency translation difference			773,530
Other increases (decreases)			9,959,036
Ending balance			16,380,094
Other Deferred Taxes [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	(10,260,085)		(6,643,613)
Recognized in profit or loss			373,614
Recognized in others in comprehensive income			992
Other increases (decreases)			(3,991,078)
Ending balance			(10,260,085)
Capitalization of expenses for issuance of financial debt
Disclosure Of Income Taxes [Line Items]
Beginning balance	(11,412,738)		(11,202,063)
Recognized in profit or loss			(407,318)
Other increases (decreases)			196,643
Ending balance			(11,412,738)
Monetary Correction - Argentina [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance	(657,871)		(425,687)
Recognized in profit or loss			(207,916)
Other increases (decreases)			(24,268)
Ending balance			(657,871)
Other Deferred Taxes
Disclosure Of Income Taxes [Line Items]
Beginning balance	1,810,524		4,984,137
Recognized in profit or loss			988,848
Recognized in others in comprehensive income			992
Other increases (decreases)			(4,163,453)
Ending balance			1,810,524
Deferred Tax Assets Liabilities [Member]
Disclosure Of Income Taxes [Line Items]
Assets	108,013,945		21,848,239
Liabilities	(168,057,562)		(249,284,641)
Beginning balance	(227,436,402)
Recognized in profit or loss	160,551,634
Recognized in others in comprehensive income	1,923,974
Foreign currency translation difference	5,465,682
Other increases (decreases)	(548,505)
Ending balance	(60,043,617)		(227,436,402)
Deferred Tax Assets Liabilities [Member] | Depreciations [Member]
Disclosure Of Income Taxes [Line Items]
Assets	55,197,762		10,652,313
Liabilities	(249,821,145)		(404,453,928)
Beginning balance	(393,801,615)
Recognized in profit or loss	191,919,566
Foreign currency translation difference	7,258,666
Ending balance	(194,623,383)		(393,801,615)
Deferred Tax Assets Liabilities [Member] | Obligations for post-employment benefits [Member]
Disclosure Of Income Taxes [Line Items]
Assets	9,581,174		7,772,646
Liabilities	(5,997)		(34,413)
Beginning balance	7,738,233
Recognized in profit or loss	(464,804)
Recognized in others in comprehensive income	2,308,510
Foreign currency translation difference	(6,762)
Ending balance	9,575,177		7,738,233
Deferred Tax Assets Liabilities [Member] | Revaluations of financial instruments [Member]
Disclosure Of Income Taxes [Line Items]
Assets			456,888
Beginning balance	456,888
Recognized in profit or loss	(93,879)
Recognized in others in comprehensive income	(387,000)
Foreign currency translation difference	23,991
Ending balance			456,888
Deferred Tax Assets Liabilities [Member] | Tax Loss [Member]
Disclosure Of Income Taxes [Line Items]
Assets	46,518,690		81,154,636
Beginning balance	81,154,636
Recognized in profit or loss	(33,611,187)
Foreign currency translation difference	(1,024,759)
Ending balance	46,518,690		81,154,636
Deferred Tax Assets Liabilities [Member] | Provisions [Member]
Disclosure Of Income Taxes [Line Items]
Assets	91,579,562		87,275,541
Beginning balance	87,275,541
Recognized in profit or loss	5,091,987
Foreign currency translation difference	(787,966)
Ending balance	91,579,562		87,275,541
Deferred Tax Assets Liabilities [Member] | Dismantling Provision [Member]
Disclosure Of Income Taxes [Line Items]
Assets	51,513,634		44,485,711
Beginning balance	44,485,711
Recognized in profit or loss	7,238,957
Foreign currency translation difference	(211,034)
Ending balance	51,513,634		44,485,711
Deferred Tax Assets Liabilities [Member] | Provision for Civil Contingencies [Member]
Disclosure Of Income Taxes [Line Items]
Assets	3,991,087		3,502,161
Beginning balance	3,502,161
Recognized in profit or loss	464,407
Foreign currency translation difference	24,519
Ending balance	3,991,087		3,502,161
Deferred Tax Assets Liabilities [Member] | Provision Contingencies Workers [Member]
Disclosure Of Income Taxes [Line Items]
Assets			492,522
Beginning balance	492,522
Recognized in profit or loss	(517,792)
Foreign currency translation difference	25,270
Ending balance			492,522
Deferred Tax Assets Liabilities [Member] | Provision for doubtful trade accounts [Member]
Disclosure Of Income Taxes [Line Items]
Assets	12,544,171		14,555,712
Beginning balance	14,555,712
Recognized in profit or loss	(1,995,773)
Foreign currency translation difference	(15,768)
Ending balance	12,544,171		14,555,712
Deferred Tax Assets Liabilities [Member] | Provision of Human Resources accounts [Member]
Disclosure Of Income Taxes [Line Items]
Assets	8,605,410		7,859,341
Beginning balance	7,859,341
Recognized in profit or loss	801,863
Foreign currency translation difference	(55,794)
Ending balance	8,605,410		7,859,341
Deferred Tax Assets Liabilities [Member] | Other provisions [member]
Disclosure Of Income Taxes [Line Items]
Assets	14,925,260		16,380,094
Beginning balance	16,380,094
Recognized in profit or loss	(899,675)
Foreign currency translation difference	(555,159)
Ending balance	14,925,260		16,380,094
Deferred Tax Assets Liabilities [Member] | Other Deferred Taxes [Member]
Disclosure Of Income Taxes [Line Items]
Assets	24,942,402		20,980,774
Liabilities	(38,036,065)		(31,240,859)
Beginning balance	(10,260,085)
Recognized in profit or loss	(2,290,049)
Recognized in others in comprehensive income	2,464
Foreign currency translation difference	2,512
Other increases (decreases)	(548,505)
Ending balance	(13,093,663)		(10,260,085)
Deferred Tax Assets Liabilities [Member] | Activation of expenses for issuance of financial debt [Member]
Disclosure Of Income Taxes [Line Items]
Liabilities	(10,691,535)		(11,412,737)
Deferred Tax Assets Liabilities [Member] | Capitalization of expenses for issuance of financial debt
Disclosure Of Income Taxes [Line Items]
Beginning balance	(11,412,738)
Recognized in profit or loss	721,203
Ending balance	(10,691,535)		(11,412,738)
Deferred Tax Assets Liabilities [Member] | Monetary Correction - Argentina [Member]
Disclosure Of Income Taxes [Line Items]
Liabilities	(1,015,095)		(657,871)
Beginning balance	(657,871)
Recognized in profit or loss	191,281
Other increases (decreases)	(548,505)
Ending balance	(1,015,095)		(657,871)
Deferred Tax Assets Liabilities [Member] | Other Deferred Taxes
Disclosure Of Income Taxes [Line Items]
Assets	24,942,402		20,980,774
Liabilities	(26,329,435)		(19,170,251)
Beginning balance	1,810,524
Recognized in profit or loss	(3,202,533)
Recognized in others in comprehensive income	2,464
Foreign currency translation difference	2,512
Ending balance	(1,387,033)		1,810,524
Deferred Tax Assets Liabilities [Member] | Deferred Tax Assets/Liabilities before compensation [Member]
Disclosure Of Income Taxes [Line Items]
Assets	227,819,590		208,292,798
Liabilities	(287,863,207)		(435,729,200)
Deferred Tax Assets Liabilities [Member] | Compensation of Assets (Liabilities) for deferred taxes [Member]
Disclosure Of Income Taxes [Line Items]
Assets	119,805,645		186,444,559
Liabilities	(119,805,645)		(186,444,559)

Income Tax and Deferred Taxes_4

Income Tax and Deferred Taxes - Additional Information (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
INCOME TAX AND DEFERRED TAXES
Unrecognized deferred tax assets tax loss carryforwards	$ 4,551,790	$ 4,625,940
Temporary differences associated with investments in subsidiaries and joint ventures	1,317,729,055	1,323,714,721
Deferred tax asset not recognized for deductible temporary differences	$ 999,207,087	$ 691,241,687

Income Tax and Deferred Taxes_5

Income Tax and Deferred Taxes - Effects of Deferred Tax on Components of Other Comprehensive Income (Detail) $ in Thousands, in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Amount Before Income Tax
Financial assets at fair value with changes in other comprehensive income	$ (9,125)		$ (3,673)	$ (411)
Cash flow hedge	267,540,328		(139,174,121)	(221,906,855)
Share of other comprehensive income from associates and joint ventures accounted for using the equity method	18,982		0
Foreign currency translation	(69,218,245)		73,114,966	107,492,316
Actuarial gains(losses) on defined-benefit pension plans	(8,545,834)		(7,777,204)	37,881
Total components of other comprehensive income (loss) before taxes	189,786,106		(73,840,032)	(114,377,069)
Income Tax Expense (Benefit)
Income tax related to financial assets at fair value with changes in other comprehensive income	2,464		992	111
Income tax related to cash flow hedge	(72,741,119)		36,883,401	60,650,786
Income tax related to defined benefit plans	2,308,510		2,099,845	(10,228)
Income tax related to components of other comprehensive income	(70,430,145)	(2,811,360)	38,984,238	60,640,669
Amount After Income Tax
Financial assets at fair value with changes in other comprehensive income	(6,661)		(2,681)	(300)
Cash flow hedge	194,799,209		(102,290,720)	(161,256,069)
Share of other comprehensive income from associates and joint ventures accounted for using the equity method	18,982
Foreign currency translation	(69,218,245)		73,114,966	107,492,316
Actuarial gains(losses) on defined-benefit pension plans	(6,237,324)		(5,677,359)	27,653
Total Other Comprehensive Income (Loss)	$ 119,355,961		$ (34,855,794)	$ (53,736,400)

Income Tax and Deferred Taxes_6

Income Tax and Deferred Taxes - Movements in Deferred Taxes for Components of Other Comprehensive Income (Detail) $ in Thousands, in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Income Tax Relating To Components Of Other Comprehensive Income [Abstract]
Total increases (decreases) for deferred taxes of other comprehensive income from continuing operations	$ 1,923,974		$ 2,811,360	$ (10,117)
Income tax of changes in cash flow hedge transactions	72,354,119		(36,172,878)	(60,650,786)
Income tax related to components of other comprehensive income	$ (70,430,145)	(2,811,360)	$ 38,984,238	$ 60,640,669

Other Financial Liabilities - S

Other Financial Liabilities - Schedule of Balances of Other Financial Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	$ 157,499,141	$ 208,814,561
Other financial liabilities, Non-current	1,483,589,126	1,692,604,245
Interest-Bearing Borrowings [Member]
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	152,076,992	158,562,319
Other financial liabilities, Non-current	1,467,421,655	1,667,271,871
Hedging Derivatives [Member]
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	5,398,864	48,225,766
Other financial liabilities, Non-current	16,167,471	25,208,326
Non-Hedging Derivatives [Member]
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	$ 23,285	2,026,476
Other financial liabilities, Non-current		$ 124,048

Other Financial Liabilities -_2

Other Financial Liabilities - Schedule of Interest-bearing Borrowings (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 152,076,992	$ 158,562,319
Non-current, Maturity	1,467,421,655	1,667,271,871
Secured Bank Loans [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	106,783,562	113,247,263
Non-current, Maturity	21,315,003	135,297,019
Unsecured Obligations [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4	5
Unsecured Obligations With The Public [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	45,293,426	45,315,051
Non-current, Maturity	$ 1,446,106,652	$ 1,531,974,852

Other Financial Liabilities -_3

Other Financial Liabilities - Summary of Bank Loans by Currency Maturity (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 106,783,566	$ 113,247,268
Non-current, Maturity	21,315,003	135,297,019
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 21,315,003	112,747,516
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 22,549,503
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Bank Loans [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 106,783,566	$ 113,247,268
Non-current, Maturity	21,315,003	135,297,019
Bank Loans [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4	134,537
Bank Loans [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	106,783,562	113,112,731
Bank Loans [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 21,315,003	112,747,516
Bank Loans [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 22,549,503
Bank Loans [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	1.77%	3.31%
Nominal Interest Rate	1.77%	3.31%
Current, Maturity	$ 106,783,562	$ 113,247,263
Non-current, Maturity	$ 21,315,003	$ 135,297,019
Bank Loans [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	6.00%
Nominal Interest Rate	6.00%	6.00%
Current, Maturity	$ 4	$ 5
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		134,532
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4	5
Bank Loans [Member] | Chile [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	106,783,562	113,112,731
Bank Loans [Member] | Chile [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 21,315,003	112,747,516
Bank Loans [Member] | Chile [Member] | Two to Three Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 22,549,503

Other Financial Liabilities - A

Other Financial Liabilities - Additional Information (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Secured liabilities	$ 0	$ 0
Undrawn line of credits	140,143,000	146,268,500
Cash flow hedge [Member]
Disclosure Of Financial Liabilities [Line Items]
Borrowings	1,931,705,893	1,585,140,233
Level 2 [Member]
Disclosure Of Financial Liabilities [Line Items]
Fair value of current and non-current unsecured liabilities	1,866,198,159	1,941,481,412
Bank Loans [Member] | Level 2 [Member]
Disclosure Of Financial Liabilities [Line Items]
Borrowings	$ 127,771,152	$ 247,030,075

Other Financial Liabilities -_4

Other Financial Liabilities - Summary of Identification of Bank Borrowings by Company (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 106,783,566	$ 113,247,268
Non-current, Maturity	$ 21,315,003	$ 135,297,019
Banco Santander [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	6.00%
Nominal Interest Rate	6.00%	6.00%
Current, Maturity	$ 3	$ 4
Banco Santander [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	6.00%
Nominal Interest Rate	6.00%	6.00%
Current, Maturity	$ 1	$ 1
Scotiabank Chile [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	2.10%	2.10%
Nominal Interest Rate	2.10%	2.10%
Current, Maturity	$ 0	$ 112,882,048
Scotiabank Chile [Member] | Almeyda Solar Spa [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	2.03%	2.03%
Nominal Interest Rate	2.03%	2.03%
Current, Maturity	$ 106,743,596	$ 321,995
Non-current, Maturity		$ 112,747,516
Inter-American Development Banl (BID) [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	1.50%	1.50%
Nominal Interest Rate	1.50%	1.50%
Current, Maturity	$ 39,966	$ 43,220
Non-current, Maturity		22,549,503
More than 90 Days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	106,783,562	113,112,731
More than 90 Days [Member] | Scotiabank Chile [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		112,747,516
More than 90 Days [Member] | Scotiabank Chile [Member] | Almeyda Solar Spa [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	106,743,596	321,995
More than 90 Days [Member] | Inter-American Development Banl (BID) [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	39,966	43,220
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	21,315,003	112,747,516
One to Two Years [Member] | Scotiabank Chile [Member] | Almeyda Solar Spa [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		112,747,516
One to Two Years [Member] | Inter-American Development Banl (BID) [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	21,315,003
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		22,549,503
Two to Three Years [Member] | Inter-American Development Banl (BID) [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		22,549,503
Less than 90 Days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4	134,537
Less than 90 Days [Member] | Banco Santander [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	3	4
Less than 90 Days [Member] | Banco Santander [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 1	1
Less than 90 Days [Member] | Scotiabank Chile [Member] | Enel Green Power Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		$ 134,532

Other Financial Liabilities -_5

Other Financial Liabilities - Summary of Unsecured Liabilities by Currency and Maturity (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 45,293,426	$ 45,315,051
Non-current, Maturity	$ 1,446,106,652	$ 1,531,974,852
U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.71%	6.59%
Nominal Annual Rate	6.49%	6.49%
Current, Maturity	$ 11,692,134	$ 12,455,049
Non-current, Maturity	$ 1,196,412,962	$ 1,257,939,794
Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	6.00%
Nominal Annual Rate	5.48%	5.48%
Current, Maturity	$ 33,601,292	$ 32,860,002
Non-current, Maturity	249,693,690	274,035,058
Less than 90 days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	9,140,614	7,700,030
Less than 90 days [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	9,140,614	7,700,030
Three to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	36,152,812	37,615,021
Three to Twelve Months [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	2,551,520	4,755,019
Three to Twelve Months [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	33,601,292	32,860,002
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
One to Two Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
Two to Three Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	314,559,708	31,624,776
Three to Four Years [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	282,085,533
Three to Four Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	328,045,479
Four to Five Years [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		296,420,703
Four to Five Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	1,034,124,419	1,109,055,045
More Than Five Years [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	914,327,429	961,519,091
More Than Five Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 119,796,990	$ 147,535,954

Other Financial Liabilities -_6

Other Financial Liabilities - Summary of Individual Identification of Unsecured Liabilities by Debtor (Detail) $ in Thousands, in Thousands	12 Months Ended
	Dec. 31, 2020CLF ( )	Dec. 31, 2019CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity | $			$ 45,293,426	$ 45,315,051
Non-current, Maturity | $			1,446,106,652	1,531,974,852
Less than 90 days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity | $			9,140,614	7,700,030
Three to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity | $			36,152,812	37,615,021
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity | $			32,474,175	31,624,776
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity | $			32,474,175	31,624,776
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity | $			314,559,708	31,624,776
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity | $			32,474,175	328,045,479
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity | $			$ 1,034,124,419	$ 1,109,055,045
Unsecured Bonds [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	45,293,426	45,315,051
Non-current, Maturity	1,446,106,652	1,531,974,852
Unsecured Bonds [Member] | Less than 90 days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	9,140,614	7,700,030
Unsecured Bonds [Member] | Three to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	36,152,812	37,615,021
Unsecured Bonds [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
Unsecured Bonds [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	31,624,776
Unsecured Bonds [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	314,559,708	31,624,776
Unsecured Bonds [Member] | Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	32,474,175	328,045,479
Unsecured Bonds [Member] | More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	1,034,124,419	1,109,055,045
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-1 [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	796.00%	796.00%
Nominal Annual Rate	788.00%	788.00%
Current, Maturity	4,802,802	5,058,091
Non-current, Maturity	145,773,744	153,480,285
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-1 [Member] | Less than 90 days [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4,802,802	5,058,091
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-1 [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	145,773,744	153,480,285
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-2 [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	740.00%	740.00%
Nominal Annual Rate	733.00%	733.00%
Current, Maturity	1,535,840	1,617,476
Non-current, Maturity	49,297,180	51,960,662
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-2 [Member] | Less than 90 days [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	1,535,840	1,617,476
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-2 [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	49,297,180	51,960,662
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-3 [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	826.00%	826.00%
Nominal Annual Rate	813.00%	813.00%
Current, Maturity	972,757	1,024,463
Non-current, Maturity	23,349,497	24,876,133
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-3 [Member] | Less than 90 days [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	972,757	1,024,463
Unsecured Bonds [Member] | BNY Mellon - Primera Emision S-3 [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	23,349,497	24,876,133
Unsecured Bonds [Member] | BNY Mellon - Unica 24296 [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	432.00%	432.00%
Nominal Annual Rate	425.00%	425.00%
Current, Maturity	2,551,520	2,828,573
Non-current, Maturity	282,085,533	296,420,703
Unsecured Bonds [Member] | BNY Mellon - Unica 24296 [Member] | Three to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	2,551,520	2,828,573
Unsecured Bonds [Member] | BNY Mellon - Unica 24296 [Member] | Three to Four Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	282,085,533
Unsecured Bonds [Member] | BNY Mellon - Unica 24296 [Member] | Four to Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		296,420,703
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	717.00%	717.00%
Nominal Annual Rate	620.00%	620.00%
Current, Maturity	6,682,676	6,592,332
Non-current, Maturity	39,617,547	43,982,519
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | Three to Twelve Months [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	6,682,676	6,592,332
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | One to Two Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	6,046,629	5,888,467
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | Two to Three Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	6,046,629	5,888,467
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | Three to Four Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	6,046,629	5,888,467
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | Four to Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	6,046,629	5,888,467
Unsecured Bonds [Member] | Banco Santander - 317 Serie-H [Member] | More Than Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	15,431,031	20,428,651
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	482.00%	482.00%
Nominal Annual Rate	475.00%	475.00%
Current, Maturity	26,918,616	26,267,670
Non-current, Maturity	210,076,143	230,052,539
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | Three to Twelve Months [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	26,918,616	26,267,670
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | One to Two Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	26,427,546	25,736,309
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | Two to Three Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	26,427,546	25,736,309
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | Three to Four Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	26,427,546	25,736,309
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | Four to Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	26,427,546	25,736,309
Unsecured Bonds [Member] | Banco Santander 522 Serie-M [Member] | More Than Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	104,365,959	127,107,303
Unsecured Bonds [Member] | BNY Mellon - Unica [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	524.00%	524.00%
Nominal Annual Rate	488.00%	488.00%
Current, Maturity	1,829,215	1,926,446
Non-current, Maturity	695,907,008	731,202,011
Unsecured Bonds [Member] | BNY Mellon - Unica [Member] | Less than 90 days [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	1,829,215
Unsecured Bonds [Member] | BNY Mellon - Unica [Member] | Three to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		1,926,446
Unsecured Bonds [Member] | BNY Mellon - Unica [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	695,907,008	731,202,011

Other Financial Liabilities -_7

Other Financial Liabilities - Summary of Changes in Reserve for Cash Flow Hedges (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Financial Liabilities [Line Items]
Exchange differences charged to income, net	$ (23,272,231)	$ (10,412,110)	$ (7,807,197)
Reserve for Cash Flow Hedges [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Balance in hedging reserves (hedging income) at the beginning of the period, net	(189,813,409)	(127,508,852)	(27,168,007)
Exchange differences recorded in shareholders' equity, net	98,288,849	(77,347,380)	(101,790,308)
Exchange differences charged to income, net	31,178,897	15,042,823	12,478,369
Others (Tender Offer 33.57% 02.04.2018 on Enel Generacion Chile)			(11,028,906)
Balance in hedging reserves (hedging income) at the end of the period, net	$ (60,345,663)	$ (189,813,409)	$ (127,508,852)

Other Financial Liabilities -_8

Other Financial Liabilities - Summary of Estimates of Undiscounted Flows of Bank Loans (Detail) $ in Thousands, in Thousands	12 Months Ended
	Dec. 31, 2020CLF ( )	Dec. 31, 2019CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			$ 106,783,566	$ 113,247,268
Non-current, Maturity			21,315,003	135,297,019
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity			21,315,003	112,747,516
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity				22,549,503
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Bank Loans [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			106,783,566	113,247,268
Non-current, Maturity			21,315,003	135,297,019
Bank Loans [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			4	134,537
Bank Loans [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			106,783,562	113,112,731
Bank Loans [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity			21,315,003	112,747,516
Bank Loans [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity				22,549,503
Bank Loans [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	1.77%	3.31%
Current, Maturity			106,783,562	113,247,263
Non-current, Maturity			21,315,003	135,297,019
Bank Loans [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.00%	6.00%
Current, Maturity			4	5
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity				134,532
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			4	5
Bank Loans [Member] | Chile [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			106,783,562	113,112,731
Bank Loans [Member] | Chile [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity			21,315,003	112,747,516
Bank Loans [Member] | Chile [Member] | Two to Three Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity				22,549,503
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			109,955,750	122,917,871
Non-current, Maturity			21,608,084	140,980,898
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	1.77%
Current, Maturity			109,955,746	122,917,866
Non-current, Maturity			21,608,084	140,980,898
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.00%
Current, Maturity			4	5
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			845,186	2,542,593
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			845,182	2,542,588
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			4	5
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			109,110,564	120,375,278
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity			109,110,564	120,375,278
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity			21,608,084	118,121,339
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity			$ 21,608,084	118,121,339
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity				22,859,559
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity				$ 22,859,559
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	113,198,044	126,576,171
Non-current, Maturity |	2,094,724,002	2,346,995,903
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	20,304,301	23,886,392
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	92,893,743	102,689,779
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	111,576,694	124,078,942
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	109,955,345	121,581,712
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	384,168,727	119,084,482
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	94,164,683	408,373,527
Unsecured Bonds [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	1,394,858,553	1,573,877,240
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%
Current, Maturity |	66,936,453	71,001,478
Non-current, Maturity |	1,787,588,483	1,963,664,145
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	5.48%
Current, Maturity |	46,261,591	55,574,693
Non-current, Maturity |	307,135,519	383,331,758
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	16,734,114	17,750,370
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	3,570,187	6,136,022
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	50,202,339	53,251,108
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity |	42,691,404	49,438,671
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	66,936,453	71,001,479
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	44,640,241	53,077,463
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	66,936,453	71,001,479
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	43,018,892	50,580,233
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	342,771,185	71,001,479
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	41,397,542	48,083,003
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	54,388,490	362,787,755
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	39,776,193	45,585,772
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	1,256,555,902	1,387,871,953
Unsecured Bonds [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity |	138,302,651	186,005,287

Lease Liabilities (Detail)

Lease Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
LEASE LIABILITIES
Current lease liabilities	$ 7,007,711	$ 5,842,015
Non-current lease liabilities	$ 44,857,807	$ 47,565,674

Lease Liabilities - Individuali

Lease Liabilities - Individualization of Lease Liabilities (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 7,007,711	$ 5,842,015
Non-current lease liabilities	44,857,807	47,565,674
Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	2,829,163	1,512,244
More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	4,178,548	4,329,771
One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	5,036,773	4,515,822
Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	7,067,087	4,565,526
Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,026,666	7,061,634
Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,903,134	1,783,940
More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 28,824,147	$ 29,638,752
Chile [Member] | U.S. Dollar [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	6.49%	6.49%
Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	5.48%	5.48%
Enel Generación Chile S.A. [Member] | Transelec S.A | Chile [Member] | U.S. Dollar [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	650.00%
Current lease liabilities	$ 2,514,263	$ 2,486,297
Non-current lease liabilities	7,721,786	10,780,138
Enel Generación Chile S.A. [Member] | Transelec S.A | Chile [Member] | U.S. Dollar [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	613,801	606,973
Enel Generación Chile S.A. [Member] | Transelec S.A | Chile [Member] | U.S. Dollar [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,900,462	1,879,324
Enel Generación Chile S.A. [Member] | Transelec S.A | Chile [Member] | U.S. Dollar [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,677,690	2,647,907
Enel Generación Chile S.A. [Member] | Transelec S.A | Chile [Member] | U.S. Dollar [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 5,044,096	2,820,020
Enel Generación Chile S.A. [Member] | Transelec S.A | Chile [Member] | U.S. Dollar [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		5,312,211
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	206.00%
Current lease liabilities	$ 18,503	17,304
Non-current lease liabilities	271,299	282,168
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	4,631	4,067
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	13,872	13,237
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	18,828	17,966
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	19,215	18,335
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	19,610	18,713
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	20,014	19,097
Enel Generación Chile S.A. [Member] | Marcelo Alberto Amar Basulto | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 193,632	208,057
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	209.00%
Current lease liabilities	$ 39,075	37,260
Non-current lease liabilities	530,071	549,960
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	13,012	12,399
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	26,063	24,861
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	35,386	33,755
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	36,127	34,460
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	36,882	35,182
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	37,654	35,917
Enel Generación Chile S.A. [Member] | Productos Fernandez S.A. | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 384,022	410,646
Enel Generación Chile S.A. [Member] | Empresa de Ferrocarriles del Estado | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	107.00%
Current lease liabilities	$ 1,741	1,661
Non-current lease liabilities		1,123
Enel Generación Chile S.A. [Member] | Empresa de Ferrocarriles del Estado | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,163	1,104
Enel Generación Chile S.A. [Member] | Empresa de Ferrocarriles del Estado | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 578	557
Enel Generación Chile S.A. [Member] | Empresa de Ferrocarriles del Estado | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		1,123
Enel Generación Chile S.A. [Member] | Agricola el Bagual LTDA. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	191.00%
Current lease liabilities	$ 1,205	1,152
Non-current lease liabilities	1,185	1,718
Enel Generación Chile S.A. [Member] | Agricola el Bagual LTDA. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,205	1,152
Enel Generación Chile S.A. [Member] | Agricola el Bagual LTDA. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	588	564
Enel Generación Chile S.A. [Member] | Agricola el Bagual LTDA. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 597	573
Enel Generación Chile S.A. [Member] | Agricola el Bagual LTDA. | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		581
Enel Generación Chile S.A. [Member] | Rentaequipos Tramaca S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	83.00%
Current lease liabilities	$ 144,460	144,436
Enel Generación Chile S.A. [Member] | Rentaequipos Tramaca S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 144,460	144,436
Enel Generación Chile S.A. [Member] | Compañía de Leasing Tattersall S A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	83.00%
Current lease liabilities	$ 9,546	6,607
Enel Generación Chile S.A. [Member] | Compañía de Leasing Tattersall S A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 9,546	6,607
Enel Generación Chile S.A. [Member] | Roberto Guzman Borquez | Chile [Member] | Chilean Peso [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	137.00%
Current lease liabilities	$ 1,466
Non-current lease liabilities	2,860
Enel Generación Chile S.A. [Member] | Roberto Guzman Borquez | Chile [Member] | Chilean Peso [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	367
Enel Generación Chile S.A. [Member] | Roberto Guzman Borquez | Chile [Member] | Chilean Peso [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,099
Enel Generación Chile S.A. [Member] | Roberto Guzman Borquez | Chile [Member] | Chilean Peso [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,483
Enel Generación Chile S.A. [Member] | Roberto Guzman Borquez | Chile [Member] | Chilean Peso [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,377
Enel Generación Chile S.A. [Member] | Yaritza Alexandra Bernal | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	137.00%
Current lease liabilities	$ 1,519
Non-current lease liabilities	2,969
Enel Generación Chile S.A. [Member] | Yaritza Alexandra Bernal | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	379
Enel Generación Chile S.A. [Member] | Yaritza Alexandra Bernal | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,140
Enel Generación Chile S.A. [Member] | Yaritza Alexandra Bernal | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,538
Enel Generación Chile S.A. [Member] | Yaritza Alexandra Bernal | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,431
Enel Generación Chile S.A. [Member] | Corporación Comunidades V. | Chile [Member] | Chilean Peso [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	107.00%
Current lease liabilities	$ 4,039
Enel Generación Chile S.A. [Member] | Corporación Comunidades V. | Chile [Member] | Chilean Peso [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,034
Enel Generación Chile S.A. [Member] | Corporación Comunidades V. | Chile [Member] | Chilean Peso [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 3,005
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA EL ROBLE S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	141.00%
Current lease liabilities	$ 57,194	53,852
Non-current lease liabilities		48,574
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA EL ROBLE S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	19,023	12,589
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA EL ROBLE S.A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 38,171	41,263
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA EL ROBLE S.A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		48,574
Enel Distribucion Chile S.A. [Member] | NURIA FERRER PARES | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		11,865
Enel Distribucion Chile S.A. [Member] | NURIA FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		4,244
Enel Distribucion Chile S.A. [Member] | NURIA FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		7,621
Enel Distribucion Chile S.A. [Member] | JUANA FERRER PARES | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		11,865
Enel Distribucion Chile S.A. [Member] | JUANA FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		4,244
Enel Distribucion Chile S.A. [Member] | JUANA FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		7,621
Enel Distribucion Chile S.A. [Member] | CARMEN ELVIRA ECHAVARRY DE LA SIERRA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		11,865
Enel Distribucion Chile S.A. [Member] | CARMEN ELVIRA ECHAVARRY DE LA SIERRA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		4,244
Enel Distribucion Chile S.A. [Member] | CARMEN ELVIRA ECHAVARRY DE LA SIERRA | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		7,621
Enel Distribucion Chile S.A. [Member] | JORGE FERRER PARES | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		11,865
Enel Distribucion Chile S.A. [Member] | JORGE FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		4,244
Enel Distribucion Chile S.A. [Member] | JORGE FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		7,621
Enel Distribucion Chile S.A. [Member] | CARMEN FERRER PARES | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		11,865
Enel Distribucion Chile S.A. [Member] | CARMEN FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		4,244
Enel Distribucion Chile S.A. [Member] | CARMEN FERRER PARES | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		7,621
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	191.00%
Current lease liabilities	$ 68,997	59,264
Non-current lease liabilities	321,998	363,876
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	21,619	13,990
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	47,378	45,274
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	64,225	61,373
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	65,453	62,545
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	66,704	63,741
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	67,977	64,959
Enel Distribucion Chile S.A. [Member] | MUTUAL DE SEGUROS DE CHILE | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 57,639	111,258
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	191.00%
Current lease liabilities	$ 56,497	48,490
Non-current lease liabilities	263,235	297,471
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	17,765	11,479
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	38,732	37,011
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	52,505	50,173
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	53,508	51,131
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	54,530	52,108
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	55,571	53,104
Enel Distribucion Chile S.A. [Member] | CAPITAL INVESTI | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 47,121	90,955
Enel Distribucion Chile S.A. [Member] | INVERSIONES TAPIHUE LTDA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		10,501
Enel Distribucion Chile S.A. [Member] | INVERSIONES TAPIHUE LTDA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		10,501
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	624.00%
Current lease liabilities	$ 60,000	20,000
Non-current lease liabilities	53,223	68,922
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	60,000
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		20,000
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	16,679	15,699
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	17,719	16,679
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 18,825	17,719
Enel Distribucion Chile S.A. [Member] | BCYCLE LATAM S.P.A | Chile [Member] | Chilean Peso [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		18,825
Enel Distribucion Chile S.A. [Member] | RENTAS INMOBILIARIAS AMANECER S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	156.00%
Current lease liabilities	$ 44,287	36,918
Non-current lease liabilities	17,803	66,073
Enel Distribucion Chile S.A. [Member] | RENTAS INMOBILIARIAS AMANECER S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	4,563	12,239
Enel Distribucion Chile S.A. [Member] | RENTAS INMOBILIARIAS AMANECER S.A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	39,724	24,679
Enel Distribucion Chile S.A. [Member] | RENTAS INMOBILIARIAS AMANECER S.A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 17,803	51,480
Enel Distribucion Chile S.A. [Member] | RENTAS INMOBILIARIAS AMANECER S.A. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		14,593
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	599.00%
Current lease liabilities	$ 327,074	350,227
Non-current lease liabilities	1,739,241	1,974,689
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	327,074	350,227
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	111,940	114,222
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	118,640	120,634
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	125,742	130,857
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	133,269	132,426
Enel Distribucion Chile S.A. [Member] | EMPRESA DE TRANSPORTE DE PASAJEROS METRO S.A | Chile [Member] | U.S. Dollar [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,249,650	1,476,550
Enel Distribucion Chile S.A. [Member] | RENTAEQUIPOS LEASING S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		774
Enel Distribucion Chile S.A. [Member] | RENTAEQUIPOS LEASING S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		774
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	141.00%
Current lease liabilities	$ 9,296	6,991
Non-current lease liabilities		4,544
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	6,122	1,628
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 3,174	5,363
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		4,544
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	167.00%
Current lease liabilities	$ 78,523	68,021
Non-current lease liabilities	104,209	165,789
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	23,746	16,118
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	54,777	51,903
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	73,305	70,215
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 30,904	71,388
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		24,186
Enel Distribucion Chile S.A. [Member] | INMOBILARIA MIXTO RENTA SpA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	107.00%
Current lease liabilities		16,530
Enel Distribucion Chile S.A. [Member] | INMOBILARIA MIXTO RENTA SpA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		16,530
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	141.00%
Current lease liabilities	$ 2,735	3,670
Non-current lease liabilities		652
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 2,735	278
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		3,392
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		652
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	141.00%
Current lease liabilities	$ 5,598	4,219
Non-current lease liabilities		2,736
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	3,734	988
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 1,864	3,231
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		2,736
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	40.00%
Current lease liabilities	$ 171,819
Non-current lease liabilities	563,128
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	42,897
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	128,922
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	172,496
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	173,183
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	173,873
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA NIALEM SA | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 43,576
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA MIXTO RENTA SPA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	10.00%
Current lease liabilities	$ 108,084
Non-current lease liabilities	9,011
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA MIXTO RENTA SPA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	27,018
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA MIXTO RENTA SPA | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	81,066
Enel Distribucion Chile S.A. [Member] | INMOBILIARIA MIXTO RENTA SPA | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 9,011
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	10.00%
Current lease liabilities	$ 445,920
Non-current lease liabilities	386,701
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	178,447
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	267,473
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	356,941
Enel Distribucion Chile S.A. [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 29,760
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	187.00%
Current lease liabilities	$ 69,653
Non-current lease liabilities	246,311
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	17,661
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	51,992
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	70,469
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	71,799
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	73,155
Enel Distribucion Chile S.A. [Member] | INVERSIONES DON ISSA LTDA | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 30,888
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 35,148	36,519
Non-current lease liabilities	828,930	837,236
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	35,148	36,519
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	28,589	27,274
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	29,315	27,967
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	30,060	28,677
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	30,824	29,406
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 710,142	723,912
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 25,341	26,329
Non-current lease liabilities	597,566	603,551
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	25,341	26,329
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	20,609	19,661
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	21,133	20,161
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	21,670	20,673
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	22,220	21,198
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 511,934	521,858
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 29,576	30,727
Non-current lease liabilities	697,483	704,475
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	29,576	30,727
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	24,055	22,949
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	24,666	23,532
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	25,293	24,130
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	25,936	24,743
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 597,533	609,121
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 26,576	27,615
Non-current lease liabilities	626,668	632,943
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	26,576	27,615
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	21,613	20,619
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	22,162	21,143
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	22,725	21,680
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	23,303	22,231
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 536,865	547,270
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 3,334	3,738
Non-current lease liabilities	97,440	85,734
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	3,334	3,738
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,524	2,793
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,591	2,864
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,659	2,937
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,729	3,011
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 86,937	74,129
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 47,443	47,317
Non-current lease liabilities	1,429,650	1,376,020
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	47,443	47,317
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	43,329	44,688
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	44,481	45,824
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	45,664	46,988
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	46,879	48,182
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,249,297	1,190,338
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 31,209	31,087
Non-current lease liabilities	588,084	592,891
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	31,209	31,087
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	19,136	18,256
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	19,622	18,720
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	20,121	19,195
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	20,632	19,683
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 508,573	517,037
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 28,607	29,105
Non-current lease liabilities	598,773	540,812
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	28,607	29,105
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	16,343	17,619
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	16,772	18,066
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	17,213	18,525
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	17,665	18,996
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 530,780	467,606
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 634	628
Non-current lease liabilities	11,641	11,761
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	634	628
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	401	383
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	412	393
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	422	403
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	433	413
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 9,973	10,169
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 1,982	1,331
Non-current lease liabilities	22,580	23,428
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	1,982	1,331
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	716	683
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	734	700
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	753	718
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	772	736
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 19,605	20,591
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 109,911	111,365
Non-current lease liabilities	1,703,180	1,731,269
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	109,911
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		111,365
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	70,851	67,592
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	72,651	69,309
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	74,497	71,070
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	76,389	72,876
Enel Green Power Chile S.A. [Member] | Fundo Los Buenos Aires SpA | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,408,792	1,450,422
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 33,580	7,914
Non-current lease liabilities	112,295	112,695
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	33,580	7,914
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,163	2,949
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,320	3,095
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,484	3,248
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,656	3,408
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 98,672	99,995
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 38,089	15,877
Non-current lease liabilities	218,265	213,474
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	38,089	15,877
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	6,968	6,496
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	7,313	6,817
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	7,674	7,154
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	8,054	7,507
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 188,256	185,500
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 13,834	3,961
Non-current lease liabilities	56,148	56,343
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	13,834	3,961
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,582	1,474
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,660	1,547
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,742	1,624
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	1,828	1,704
Enel Green Power Chile S.A. [Member] | Juan Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 49,336	49,994
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 33,522	31,828
Non-current lease liabilities	423,250	426,576
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	33,522	31,828
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	13,937	12,991
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	14,626	13,633
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	15,349	14,307
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	16,108	15,015
Enel Green Power Chile S.A. [Member] | Adriana Castro Parra | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 363,230	370,630
Enel Green Power Chile S.A. [Member] | Alicia Freire Hermosilla | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	431.00%
Current lease liabilities	$ 97,512	93,160
Non-current lease liabilities		88,809
Enel Green Power Chile S.A. [Member] | Alicia Freire Hermosilla | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	$ 97,512	93,160
Enel Green Power Chile S.A. [Member] | Alicia Freire Hermosilla | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities		88,809
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 22,346	31,828
Non-current lease liabilities	423,250	426,577
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	22,346	31,828
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	13,937	12,991
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	14,626	13,633
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	15,349	14,307
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	16,108	15,015
Enel Green Power Chile S.A. [Member] | Agricola Santa Amalia | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 363,230	370,631
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 8,966	15,918
Non-current lease liabilities	211,622	219,292
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	8,966	15,918
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	6,640	6,190
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	6,968	6,496
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	7,313	6,817
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	7,674	7,154
Enel Green Power Chile S.A. [Member] | Orafti Chile S.A. | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 183,027	192,635
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	487.00%
Current lease liabilities	$ 250,048	472,736
Non-current lease liabilities	5,206,653	5,313,405
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	250,048
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		472,736
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	243,730	227,365
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	255,590	238,428
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	268,028	250,031
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	281,070	262,197
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 4,158,235	4,335,384
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 13,703	41,389
Non-current lease liabilities	574,148	576,277
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	13,703	41,389
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	14,008	13,058
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	14,701	13,704
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	15,428	14,381
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	16,190	15,092
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 513,821	520,042
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 19,817	5,605
Non-current lease liabilities	77,706	75,938
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	19,817	5,605
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,297	2,141
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,411	2,247
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,530	2,359
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	2,655	2,475
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 67,813	66,716
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 46,780	95,241
Non-current lease liabilities	1,309,586	1,316,893
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	46,780	95,241
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	39,840	37,137
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	41,810	38,973
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	43,877	40,900
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	46,046	42,922
Enel Green Power Chile S.A. [Member] | Sociedad Agricola Parant | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,138,013	1,156,961
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	494.00%
Current lease liabilities	$ 233,017	7,935
Non-current lease liabilities	109,132	109,743
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	233,017	7,935
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,320	3,095
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,484	3,248
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,656	3,408
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	3,837	3,577
Enel Green Power Chile S.A. [Member] | Federico Rioseco Garcia | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 94,835	96,415
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 70,834	76,055
Non-current lease liabilities	1,324,637	1,337,757
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	70,834	76,055
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	45,685	43,584
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	46,846	44,691
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	48,036	45,827
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	49,256	46,991
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,134,814	1,156,664
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 91,996	117,630
Non-current lease liabilities	1,226,032	1,244,702
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	91,996	117,630
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	44,907	42,842
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	46,048	43,930
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	47,218	45,047
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	48,418	46,191
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,039,441	1,066,692
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 71,401	29,696
Non-current lease liabilities	535,443	508,935
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	71,401	29,696
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	17,423	16,622
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	17,866	17,044
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	18,320	17,477
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	18,785	17,921
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 463,049	439,871
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 43,930	29,189
Non-current lease liabilities	593,054	629,920
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	43,930	29,189
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	20,454	19,513
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	20,973	20,009
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	21,506	20,517
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	22,052	21,038
Enel Green Power Chile S.A. [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 508,069	548,843
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	461.00%
Current lease liabilities	$ 374,657	367,982
Non-current lease liabilities	3,777,368	3,816,105
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	374,657
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		367,982
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	218,600	201,806
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	228,677	211,109
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	239,219	220,842
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	250,247	231,022
Parque Eólico Talinay Oriente S.A. [Member] | Agricola Alto Talinay | Chile [Member] | Euros [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 2,840,625	2,951,326
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	502.00%
Current lease liabilities	$ 596,278	260,072
Non-current lease liabilities	3,225,628	3,253,694
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	596,278	260,072
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	181,888	167,261
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	191,016	175,655
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	200,603	184,471
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	210,671	193,729
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Euros [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 2,441,450	2,532,578
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	639.00%
Current lease liabilities	$ 51,782	46,597
Non-current lease liabilities	1,342,354	1,239,306
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	32,757
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	19,025	46,597
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	39,084	54,543
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	40,507	55,929
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	41,981	57,350
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	43,509	58,807
Almeyda Solar Spa [Member] | Inmobiliaria Terra Australis Tres S.A. | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,177,273	1,012,677
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	639.00%
Current lease liabilities	$ 99,022	98,189
Non-current lease liabilities	2,154,406	2,176,366
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	99,022	98,189
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	74,302	70,885
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	76,190	72,686
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	78,126	74,533
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	80,111	76,427
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 1,845,677	1,881,835
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	223.00%
Current lease liabilities	$ 47,369	48,681
Non-current lease liabilities	386,869	413,967
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	47,369	48,681
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	39,288	37,594
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	40,165	38,433
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	41,061	39,291
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	41,978	40,168
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 224,377	258,481
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	236.00%
Current lease liabilities	$ 32,932	32,269
Non-current lease liabilities	391,917	406,593
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	32,932	32,269
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	23,945	22,884
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	24,511	23,424
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	25,090	23,978
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	25,683	24,545
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 292,688	311,762
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	294.00%
Current lease liabilities	$ 101,743	35,334
Non-current lease liabilities	1,118,063	1,127,649
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	101,743	35,334
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	36,866	35,034
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	37,949	36,064
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	39,065	37,124
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	40,213	38,215
Almeyda Solar Spa [Member] | Soc. Serv. Com.. Multiservice F.L. | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 963,970	981,212
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	254.00%
Current lease liabilities	$ 26,523	34,408
Non-current lease liabilities	617,054	726,105
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	26,523	34,408
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	10,430	25,058
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	11,006	25,694
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Three to Four Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	11,613	26,347
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | Four to Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	12,254	27,017
Almeyda Solar Spa [Member] | Ministerio de Bienes Nacionales | Chile [Member] | Unidades de Fomento [Member] | More Than Five Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 571,751	621,989
Enel Chile SA [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	10.00%
Current lease liabilities	$ 6,775
Non-current lease liabilities	5,902
Enel Chile SA [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	2,710
Enel Chile SA [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities	4,065
Enel Chile SA [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | One to Two Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	5,426
Enel Chile SA [Member] | COMPAÑIA DE LEASING TATTERSALL S A. | Chile [Member] | Unidades de Fomento [Member] | Two to Three Years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Non-current lease liabilities	$ 476
Enel Chile SA [Member] | Inversiones Cardinal S.A | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		34,082
Enel Chile SA [Member] | Inversiones Cardinal S.A | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		9,281
Enel Chile SA [Member] | Inversiones Cardinal S.A | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		24,801
Enel Chile SA [Member] | Inversiones Cardinal S.A | Chile [Member] | Unidades de Fomento [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Nominal Interest Rate	120.00%
Current lease liabilities		29,179
Enel Chile SA [Member] | Inversiones Cardinal S.A | Chile [Member] | Unidades de Fomento [Member] | Less than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		9,714
Enel Chile SA [Member] | Inversiones Cardinal S.A | Chile [Member] | Unidades de Fomento [Member] | More than 90 Days [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Current lease liabilities		$ 19,465

Lease Liabilities - Summary of

Lease Liabilities - Summary of Estimates of Undiscounted Flows (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	$ 7,007,711	$ 5,842,015
Non current finance lease obligations	44,857,807	47,565,674
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	5,036,773	4,515,822
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	7,067,087	4,565,526
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	2,026,666	7,061,634
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	1,903,134	1,783,940
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	$ 28,824,147	$ 29,638,752
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Chile [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	5.48%	5.48%
Finance Leases [Member] | Future Undiscounted Debt Flow [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	$ 8,035,850	$ 7,121,593
Non current finance lease obligations	57,709,063	60,791,882
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	3,315,346	1,762,246
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	4,720,504	5,359,347
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	7,236,277	6,982,602
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	8,938,172	6,581,108
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	3,597,671	8,682,207
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	3,342,761	3,143,338
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	$ 34,594,182	35,402,627
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.25%
Current finance lease liabilities	$ 3,350,135	3,661,490
Non current finance lease obligations	$ 10,790,497	15,178,552
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	4.82%
Current finance lease liabilities	$ 427,451	321,343
Non current finance lease obligations	$ 4,548,563	4,368,379
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	2.74%
Current finance lease liabilities	$ 4,234,108	3,114,467
Non current finance lease obligations	$ 42,312,484	41,178,843
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	2.89%
Current finance lease liabilities	$ 24,156	24,293
Non current finance lease obligations	57,519	66,108
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	805,609	859,011
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	427,451	80,971
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	2,058,130	821,084
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	24,156	1,180
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	2,544,526	2,802,479
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities		240,372
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	2,175,978	2,293,383
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities		23,113
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	3,343,654	3,570,048
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	582,405	499,678
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	3,289,984	2,895,029
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	20,234	17,847
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	5,400,991	3,554,711
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	563,152	485,713
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	2,954,856	2,523,717
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	19,173	16,967
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	227,622	5,731,772
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	543,900	471,749
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	2,808,037	2,462,599
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	18,112	16,087
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	219,295	258,317
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	524,648	457,785
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	2,598,818	2,412,029
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations		15,207
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	1,598,935	2,063,704
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member] | Euros [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	2,334,458	2,453,454
Finance Leases [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	$ 30,660,789	$ 30,885,469

Risk Management Policy - Compar

Risk Management Policy - Comparative Structure of Financial Debt According to Fixed and /or Protected Interest Rate on Gross Debt (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Fixed interest rate [member]
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items]
Interest rate risk	99.00%	98.00%

Risk Management Policy - Additi

Risk Management Policy - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)BTUbbl	Dec. 31, 2019CLP ($)BTUkWhbbl
Disclosure Of Financial Risk Management [Line Items]
Cash and cash equivalent	$ 332,036,013	$ 235,684,500
VaR at confidence level, percentage	95.00%
Percentage of potential variations in fair value	5.00%
VaR amount	$ 308,778,352
Commodity Price Risk [Member] | Swap Hedges [Member] | Coal API2 [Member]
Disclosure Of Financial Risk Management [Line Items]
Quantity of transaction to be settle | kWh		1,412
Commodity Price Risk [Member] | Swap Hedges [Member] | Brent Oil [Member]
Disclosure Of Financial Risk Management [Line Items]
Quantity of transaction to be settle | bbl	1,782	1,059
Commodity Price Risk [Member] | Swap Hedges [Member] | Henry Hub Gas [Member]
Disclosure Of Financial Risk Management [Line Items]
Quantity of transaction to be settle | BTU	16,800,000	4,790,000
Liquidity Risk [Member]
Disclosure Of Financial Risk Management [Line Items]
Cash and cash equivalent	$ 332,036,013	$ 235,684,500
Liquidity Risk [Member] | Lines of Credit [Member]
Disclosure Of Financial Risk Management [Line Items]
Available lines of long-term credit	$ 140,643,000	$ 146,268,500

Financial Instruments - Summary

Financial Instruments - Summary of Financial Assets Classified by Type and Category (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Financial Assets [Line Items]
Trade and other receivables, current	$ 554,886,639	$ 511,455,330
Derivative instruments	1,000,964	322,316
Other financial assets	3,352,404	1,310,595
Trade accounts receivable and other accounts receivable	5,366,754	3,734,116
Derivative instruments	16,422,737	4,871,397
Other financial assets	20,660,450	7,220,620
Financial assets at fair value through profit or loss, category [member]
Disclosure Of Financial Assets [Line Items]
Derivative instruments	3,033,502	1,618,318
Total Current	3,033,502	1,618,318
Derivative instruments	1,911,233
Total Non-current	1,911,233
Total	4,944,735	1,618,318
Financial assets measured at amortised cost [member]
Disclosure Of Financial Assets [Line Items]
Trade and other receivables, current	592,856,895	576,740,203
Other financial assets	808,692	860,425
Total Current	593,665,587	577,600,628
Trade accounts receivable and other accounts receivable	493,375,481	347,981,527
Other financial assets		2
Total Non-current	493,375,481	347,981,529
Total	1,087,041,068	925,582,157
Other Comprehensive Income [Member]
Disclosure Of Financial Assets [Line Items]
Equity instruments	127,854	127,854
Derivative instruments	18,387,261	1,323,556
Total Current	18,515,115	1,451,410
Equity instruments	2,326,480	2,349,221
Total Non-current	2,326,480	2,349,221
Total	20,841,595	3,800,631
Derivatives Designated as Hedges [Member]
Disclosure Of Financial Assets [Line Items]
Derivative instruments	1,000,964	277,702
Total Current	1,000,964	277,702
Derivative instruments	16,422,737	4,871,397
Total Non-current	16,422,737	4,871,397
Total	$ 17,423,701	$ 5,149,099

Financial Instruments - Summa_2

Financial Instruments - Summary of Financial Liabilities Classified by Type and Category (Detail) $ in Thousands, in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Disclosure Of Financial Liabilities [Line Items]
Trade and other accounts payable	627,958,022	$ 627,958,022	$ 599,263,208
Derivative instruments		5,398,864	48,225,766
Other financial liabilities		157,499,141	208,814,561
Trade and other accounts payable		117,210,059	56,250,085
Derivative instruments		16,167,471	25,208,326
Other financial liabilities		1,483,589,126	1,692,604,245
Financial liabilities at fair value with changes in other result [Member]
Disclosure Of Financial Liabilities [Line Items]
Derivative instruments		4,841,020	2,026,476
Total Current		4,841,020	2,026,476
Other financial liabilities			124,048
Total Non-current			124,048
Total		4,841,020	2,150,524
Financial liabilities measured at amortized cost [Member]
Disclosure Of Financial Liabilities [Line Items]
Interest-bearing loans		152,076,992	164,404,334
Trade and other accounts payable		757,965,390	750,103,757
Other financial liabilities		7,007,711
Total Current		917,050,093	914,508,091
Interest-bearing loans		1,467,421,655	1,714,837,545
Trade and other accounts payable		1,281,254,521	840,623,569
Other financial liabilities		44,857,807
Total Non-current		2,793,533,983	2,555,461,114
Total		3,710,584,076	3,469,969,205
Financial Liabilities at Fair Value Through Other Comprehensive Income, Category [Member]
Disclosure Of Financial Liabilities [Line Items]
Derivative instruments		45,543	8,924,831
Total Current		45,543	8,924,831
Total		45,543	8,924,831
Derivatives Designated as Hedges [Member]
Disclosure Of Financial Liabilities [Line Items]
Derivative instruments		581,129	48,225,766
Total Current		581,129	48,225,766
Derivative instruments		16,167,471
Other financial liabilities			25,208,326
Total Non-current		16,167,471	25,208,326
Total		$ 16,748,600	$ 73,434,092

Financial Instruments - Summa_3

Financial Instruments - Summary of Financial Derivative Transactions Qualifying as Hedge Instruments Resulted in Recognition of Assets and Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Assets Current	$ 1,000,964	$ 322,316
Assets Non-Current	16,422,737	4,871,397
Liabilities Current	5,398,864	48,225,766
Liabilities Non-current	16,167,471	25,208,326
Interest rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current		322,316
Assets Non-Current		8,447
Liabilities Current	1,947,377
Liabilities Non-current	12,944,130	7,743,401
Interest rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current		322,316
Assets Non-Current		8,447
Liabilities Current	1,947,377
Liabilities Non-current	12,944,130	7,743,401
Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current	1,000,964
Assets Non-Current	16,422,737	4,862,950
Liabilities Current	3,451,487	48,225,766
Liabilities Non-current	3,223,341	17,464,925
Exchange rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current	1,000,964
Assets Non-Current	16,422,737	4,862,950
Liabilities Current	3,451,487	48,225,766
Liabilities Non-current	$ 3,223,341	$ 17,464,925

Financial Instruments - Summa_4

Financial Instruments - Summary of Hedge Derivative Instruments and Their Corresponding Hedged Instruments (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Others [Member] | Exchange rate hedge [Member] | FORWARD
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	$ 29,981
Others [Member] | Interest rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item		$ (699,158)
Others [Member] | Interest rate hedge [Member] | FORWARD
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	(77,558)
Unsecured Bonds [Member] | Exchange rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	12,763,777	(9,530,240)
Loans with Related Companies [Member] | Interest rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	(12,944,129)	(6,991,184)
Bank loans [Member] | Interest rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	(1,947,377)	277,703
Operational Income [Member] | Exchange rate hedge [Member] | FORWARD
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	$ (1,967,328)	$ (51,297,500)

Financial Instruments - Summa_5

Financial Instruments - Summary of Financial Derivative Transactions Recorded at Fair Value Through Profit or Loss Resulted in the Recognition of Assets and Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Assets Current	$ 1,000,964	$ 322,316
Liabilities Current	5,398,864	48,225,766
Assets Non-Current	16,422,737	4,871,397
Liabilities Non-current	16,167,471	25,208,326
Non-hedging derivative instrument [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current	1,414,895
Liabilities Current	23,285	2,026,476
Assets Non-Current	$ 1,911,233
Liabilities Non-current		$ 124,048

Financial Instruments - Summa_6

Financial Instruments - Summary of Fair Value of Hedging and Non-hedging Derivatives Entered Into by the Group as Well as the Remaining Contractual Maturities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about hedging instruments [line items]
Fair value	$ (839,791)	$ (70,390,903)
Notional Amount	1,194,277,973	1,606,944,390
Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	3,302,843	(2,150,524)
Notional Amount	60,281,477	33,807,926
Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	280,156,234	634,856,156
Less Than One Year [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	30,063,763	31,746,086
One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	305,572,908	154,954,548
One to Two Years [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	21,189,518	2,061,840
Two to Three Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	8,742,828	299,496,000
Two to Three Years [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	8,742,828
Three to Four Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	504,676,413
Three to Four Years [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	285,368
Four to Five Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	95,129,590	517,637,686
Exchange rate hedge [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	10,748,873	(60,827,741)
Notional Amount	742,973,996	1,049,018,464
Exchange rate hedge [Member] | Less Than One Year [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	143,449,971	490,799,070
Exchange rate hedge [Member] | One to Two Years [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	3,390	40,581,708
Exchange rate hedge [Member] | Three to Four Years [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	504,391,045
Exchange rate hedge [Member] | Four to Five Years [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	95,129,590	517,637,686
Exchange rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	10,748,873	(60,827,741)
Notional Amount	742,973,996	1,049,018,464
Exchange rate hedge [Member] | Cash flow hedge [Member] | Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	143,449,971	490,799,070
Exchange rate hedge [Member] | Cash flow hedge [Member] | One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	3,390	40,581,708
Exchange rate hedge [Member] | Cash flow hedge [Member] | Three to Four Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	504,391,045
Exchange rate hedge [Member] | Cash flow hedge [Member] | Four to Five Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	95,129,590	517,637,686
Interest rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(14,891,507)	(7,412,638)
Notional Amount	391,022,500	524,118,000
Interest rate hedge [Member] | Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	106,642,500	112,311,000
Interest rate hedge [Member] | One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	284,380,000	112,311,000
Interest rate hedge [Member] | Two to Three Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount		299,496,000
Interest rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(14,891,507)	(7,412,638)
Notional Amount	391,022,500	524,118,000
Interest rate hedge [Member] | Cash flow hedge [Member] | Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	106,642,500	112,311,000
Interest rate hedge [Member] | Cash flow hedge [Member] | One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	$ 284,380,000	112,311,000
Interest rate hedge [Member] | Cash flow hedge [Member] | Two to Three Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount		$ 299,496,000

Financial instruments- Schedule

Financial instruments- Schedule of Financial Assets and Liabilities Measured at Fair Value (Detail) - At fair value [member] - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	$ 43,210,031	$ 10,568,050
Financial liabilities	21,635,163	84,509,447
Equity Instruments [Member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	2,454,334	2,477,077
Derivatives Designated as Hedges [Member] | Financial Derivatives Asset
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	17,423,701	5,193,713
Derivatives Designated as Hedges [Member] | Commodity Derivatives Assets
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	18,387,261	1,323,556
Derivatives Designated as Hedges [Member] | Financial Derivatives Liability
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	21,566,335	73,434,092
Derivatives Designated as Hedges [Member] | Commodity Derivatives Liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities		8,924,831
Derivatives not designated for hedge accounting [Member] | Financial Derivatives Asset
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	3,326,128
Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Assets
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,618,607	1,573,704
Derivatives not designated for hedge accounting [Member] | Financial Derivatives Liability
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	23,285	2,150,524
Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	45,543
Level 1 [Member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	2,326,480	2,349,223
Level 1 [Member] | Equity Instruments [Member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	2,326,480	2,349,223
Level 2 [Member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	40,883,551	8,218,827
Financial liabilities	21,635,163	84,509,447
Level 2 [Member] | Equity Instruments [Member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	127,854	127,854
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Financial Derivatives Asset
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	17,423,701	5,193,713
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Commodity Derivatives Assets
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	18,387,261	1,323,556
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Financial Derivatives Liability
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	21,566,335	73,434,092
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Commodity Derivatives Liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities		8,924,831
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Financial Derivatives Asset
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	3,326,128
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Assets
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,618,607	1,573,704
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Financial Derivatives Liability
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	23,285	$ 2,150,524
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Liabilities
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	$ 45,543

Current and Non-Current Payab_3

Current and Non-Current Payables - Summary of Trade and Other Current Payables (Detail) $ in Thousands, in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Trade And Other Payables [Line Items]
Trade and other payables, current	627,958,022	$ 627,958,022	$ 599,263,208
Trade and other payables non-current		117,210,059	56,250,085
Energy suppliers [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	135,817,661		178,153,813
Trade and other payables non-current		112,895,627	53,941,373
Fuel and gas suppliers [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	36,735,748		55,179,023
Payables for goods and services [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	153,883,621		183,848,556
Trade and other payables non-current		487	487
Payable For Assets Acquisition [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	251,679,169		100,307,602
Trade and other payables non-current		4,233,657	2,281,051
Subtotal Trade Payables [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	578,116,199		517,488,994
Trade and other payables non-current		117,129,771	56,222,911
Dividends payable to third parties [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	5,755,000		41,582,444
Accounts payable to staff [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	35,256,939		33,495,586
Other payables [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	8,829,884		6,696,184
Trade and other payables non-current		80,288	27,174
Subtotal Other Payables [Member]
Trade And Other Payables [Line Items]
Trade and other payables, current	49,841,823		81,774,214
Trade and other payables non-current		$ 80,288	$ 27,174

Provisions - Summary of Breakdo

Provisions - Summary of Breakdown of Provisions (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
PROVISIONS
Provision for legal proceedings, current	$ 1,492,140	$ 2,320,885
Other provisions, current	1,942,664	1,745,080
Other current provisions, Total	3,434,804	4,065,965
Provision for legal proceedings, non-current	14,843,034	11,210,305
Decommissioning or restoration, non-current	191,867,939	160,649,977
Other provisions, non-current	3,530,698
Other long-term provisions, Total	$ 210,241,671	$ 171,860,282

Provisions - Summary of Changes

Provisions - Summary of Changes in Provisions (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Other Provisions [Line Items]
Beginning balance	$ 175,926,247	$ 111,460,161
Increase (decrease) in existing provisions	39,598,520	66,478,287
Provisions used	(3,214,685)	(3,977,591)
Reversal of unused provision	(1,474,149)	(3,612,445)
Increase from adjustment to time value of money	4,115,292	4,356,650
Foreign currency translation	(1,274,750)	1,221,185
Total changes in provisions	37,750,228	64,466,086
Ending balance	213,676,475	175,926,247
Legal Proceedings [Member]
Disclosure Of Other Provisions [Line Items]
Beginning balance	13,531,190	17,352,876
Increase (decrease) in existing provisions	5,905,427	3,749,833
Provisions used	(1,471,151)	(3,946,144)
Reversal of unused provision	(1,474,149)	(3,612,445)
Foreign currency translation	(156,143)	(12,930)
Total changes in provisions	2,803,984	(3,821,686)
Ending balance	16,335,174	13,531,190
Decommissioning or Restoration [Member]
Disclosure Of Other Provisions [Line Items]
Beginning balance	160,649,977	92,402,517
Increase (decrease) in existing provisions	29,964,811	62,688,286
Provisions used	(1,743,534)	(31,436)
Increase from adjustment to time value of money	4,115,292	4,356,650
Foreign currency translation	(1,118,607)	1,233,960
Total changes in provisions	31,217,962	68,247,460
Ending balance	191,867,939	160,649,977
Environment and Other Provisions [Member]
Disclosure Of Other Provisions [Line Items]
Beginning balance	1,745,080	1,704,768
Increase (decrease) in existing provisions	3,728,282	40,168
Provisions used		(11)
Foreign currency translation		155
Total changes in provisions	3,728,282	40,312
Ending balance	$ 5,473,362	$ 1,745,080

Post Employee Benefit Obligat_3

Post Employee Benefit Obligations - Summary of Post Employment Obligations Associated with Defined Benefits Plan (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Post Employment Obligations [Line Items]
Total post-employment obligations, net	$ 75,538,265	$ 66,163,490
Employee severance indemnities
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	50,011,279	42,697,317
Complementary Pension
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	18,896,906	17,853,600
Health Plans
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	3,145,989	3,090,670
Energy Supply Plans
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	$ 3,484,091	$ 2,521,903

Post Employee Benefit Obligat_4

Post Employee Benefit Obligations - Summary of Defined Benefit Plans Expense Recognized in Statements of Comprehensive Income (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Net Defined Benefit Recognized In Consolidated Statement Of Comprehensive Income [Abstract]
Cost of current defined benefit plan service	$ (2,132,231)	$ (1,928,868)	$ (1,920,262)
Defined benefit plan interest cost	(2,146,386)	(2,639,738)	(2,750,376)
Past service cost		(1,224,527)	39,060
Expenses recognized in Profit or Loss	(4,278,617)	(5,793,133)	(4,631,578)
Gains (losses) from remeasurement of defined benefit plans	(8,545,834)	(7,777,204)	37,881
Total expense recognized in the Statement of Comprehensive Income	$ (12,824,451)	$ (13,570,337)	$ (4,593,697)

Post Employee Benefit Obligat_5

Post Employee Benefit Obligations - Summary of Changes in Post-employment Defined Benefit Obligations (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Net Defined Benefit Liability Asset [Abstract]
Beginning balance	$ 66,163,490	$ 56,602,664
Current service cost	2,132,231	1,928,868
Interest cost	2,146,386	2,639,738
Actuarial (gains) losses from changes in financial assumptions	4,695,927	5,724,985
Actuarial (gains) losses from changes in experience adjustments	3,849,907	2,052,219
Foreign currency translation	102,073	9,786
Past service cost of Defined Benefit Plan Obligations		1,224,527
Contributions paid	(3,335,366)	(4,068,988)
Transfers of employees	(216,383)	49,691
Ending balance	$ 75,538,265	$ 66,163,490

Post Employee Benefit Obligat_6

Post Employee Benefit Obligations - Summary of Assumptions Used in Actuarial Calculation of Defined Benefits (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Abstract]
Discount rates used	2.60%	3.40%
Expected rate of salary increases	3.80%	3.80%
Turnover rate	7.10%	5.24%
Mortality tables	CB-H-2014 and RV-M-2014	CB-H-2014 / RV-M-2014

Post Employee Benefit Obligat_7

Post Employee Benefit Obligations - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Defined Benefit Plans [Line Items]
Increase (decrease) in actual assumption	(0.80%)
Post-employment benefits to variations	100.00%
Discount rate assumes a increase	$ 6,136,668	$ 5,829,095
Discount rate assumes a decrease	5,602,670	$ 5,330,365
Defined benefit plans will increase	$ 8,445,218
Weighted average term	7 years 11 months 23 days
Term of commitments	10 years
Bottom of Range [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Requisite vesting service period (in years)	5 years
Top of Range [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Requisite vesting service period (in years)	15 years

Post Employee Benefit Obligat_8

Post Employee Benefit Obligations - Summary of Expected Flow for Benefits for Next Five Years (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)
Less Than One Year [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	$ 8,445,218
One to Two Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	6,484,023
Two to Three Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	5,441,166
Three to Four Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	6,022,293
Four to Five Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	5,467,563
More Than Five Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	$ 25,094,378

Equity - Additional Information

Equity - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2020CLP ($)shares	Dec. 31, 2019CLP ($)	Dec. 20, 2017CLP ($)
Disclosure Of Shareholders Equity [Line Items]
Issued capital			$ 3,882,103,470,000	$ 3,882,103,470,000	$ 1,891,727,278,668
Issuance of new shares		$ 665,829,207,000
Valuation of capital increase due to the merger		1,071,727,279,000
Payment by minority shareholders	$ 3,924,530
Share repurchase		72,388,009,000
Enel Generación Chile S.A. [Member]
Disclosure Of Shareholders Equity [Line Items]
Restricted net asset value			712,519,037,000	$ 752,696,419,000
Enel Chile SA [Member]
Disclosure Of Shareholders Equity [Line Items]
Issued capital			$ 3,882,103,470,000
Number of shares outstanding | shares			69,166,557,220
Treasury shares.		$ 72,388,009,000
Treasury shares held | shares			967,520,597

Equity - Changes in Capital Iss

Equity - Changes in Capital Issued as result of Corporate Reorganization (Detail)	Mar. 16, 2018CLP ($)$ / sharesshares	Dec. 31, 2020CLP ($)$ / sharesshares	Dec. 31, 2018CLP ($) sharesshares	Dec. 31, 2019CLP ($)	Apr. 02, 2018CLP ($)	Mar. 31, 2018shares	Dec. 20, 2017CLP ($)
Tender Offer
Number of subscribed share		7,923,600,070
Amount paid by shareholder for subscribed shares | $		$ 649,730,695,412,000
Number of shares exercised under preferential subscription rights	47,860,124
Share exercised price under preferential subscription rights | $ / shares	82
Capital increased after preferential subscription rights exercised | $	$ 3,924,530,168,000
Issued capital | $		$ 3,882,103,470,000		$ 3,882,103,470,000			$ 1,891,727,278,668
Share exchange ratio | $			2.88
Issuance of new shares | $			$ 665,829,207,000
Enel Generación Chile S.A. [Member]
Tender Offer
Number of shares held by the company		2,753,096,167
Percentage of sale price on purchase price		40.00%
Purchase price per share | $ / shares		$ 590
Number of shares sold for each share in offer		2.87807
Amount of cash received by foreign shareholders | $		$ 100,748,329,200,000
Amount of cash received by domestic shareholders | $		1,523,578,409,330,000
Amount of cash received by shareholders | $		1,624,326,738,530,000
Restricted net asset value | $		$ 712,519,037,000		$ 752,696,419,000
Enel Green Power Latin America S.A. [Member]
Tender Offer
Increase in capital stock after merger | $					$ 1,071,727,278,668,000
Prior to Reorganization [Member]
Tender Offer
Number of shares outstanding						49,092,772,762
Purchased shares - national market			2,582,336,287
Purchased shares - ADS			170,759,880
Total public offer shares			2,753,096,167
Rights exercised for withdrawal by minority shareholders of Enel Chile			(967,520,598)
Issuance of new shares | $			$ 649,730,695,000
Total repurchase of shares | $			$ (967,520,598)
Prior to Reorganization [Member] | Enel Green Power Latin America S.A. [Member]
Tender Offer
Number of shares issued			827,205,371
After Reorganization [Member]
Tender Offer
Purchased shares - national market			7,432,144,598
Purchased shares - ADS			491,455,472
Total public offer shares			7,923,600,070
Number of shares issued			70,134,077,818
Rights exercised for withdrawal by minority shareholders of Enel Chile			(967,520,598)
Total repurchase of shares | $			$ (967,520,598)
After Reorganization [Member] | Enel Green Power Latin America S.A. [Member]
Tender Offer
Number of shares issued			13,069,844,862
After Merger [Member]
Tender Offer
Number of shares issued			69,166,557,220
Enel SpA [Member] | Enel Green Power Latin America S.A. [Member]
Tender Offer
Share exchange ratio			15.8
Enel SpA [Member] | Prior to Reorganization [Member] | Enel Green Power Latin America S.A. [Member]
Tender Offer
Number of shares issued			827,205,371
Enel SpA [Member] | After Reorganization [Member] | Enel Green Power Latin America S.A. [Member]
Tender Offer
Number of shares issued			13,069,844,862
Preference shares [member] | Prior to Reorganization [Member]
Tender Offer
Shares Paid for by Shareholders			47,860,124
Total Preferential Right Shares			47,860,124
Preference shares [member] | After Reorganization [Member]
Tender Offer
Shares Paid for by Shareholders			47,860,124
Total Preferential Right Shares			47,860,124
Ordinary shares [member] | Enel Generación Chile S.A. [Member]
Tender Offer
Number shares Sale order acceptance received		2,582,336,287
Number equivalent shares sale order acceptance received		170,759,880
American Depositary Shares [Member] | Enel Generación Chile S.A. [Member]
Tender Offer
Number shares Sale order acceptance received		5,691,996

Equity - Summary of Dividends P

Equity - Summary of Dividends Paid (Detail) - CLP ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Dividends [Line Items]
Total Amount	$ 221,892,343	$ 213,937,411	$ 215,461,852
Final Dividends [Member]
Disclosure Of Dividends [Line Items]
Type of Dividend		Final	Final	Final
Payment Date		May 27, 2020	May 17, 2019	May 18, 2018
Total Amount		$ 146,758,726	$ 185,737,592	$ 155,025,509
Pesos per Share		$ 2.12182	$ 2.68537	$ 2.24134
Charged to Fiscal		2019	2018	2017
Interim Dividends [Member]
Disclosure Of Dividends [Line Items]
Type of Dividend		Interim	Interim	Interim
Payment Date		Jan. 31, 2020	Jan. 25, 2019	Jan. 26, 2018
Total Amount		$ 30,933,437	$ 31,288,371	$ 37,134,944
Pesos per Share		$ 0.44723	$ 0.45236	$ 0.75642
Charged to Fiscal		2019	2018	2017
Eventual Dividends [Member]
Disclosure Of Dividends [Line Items]
Type of Dividend		Eventual
Payment Date		May 27, 2020
Total Amount		$ 114,883,119
Pesos per Share		$ 1.66096
Charged to Fiscal		2019

Equity - Summary of Foreign Cur

Equity - Summary of Foreign Currency Translation Adjustments (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	$ 3,594,274,499	$ 3,747,283,652	$ 3,674,163,781	$ 3,786,961,657
Reserve for Exchange Differences in Translation [Member]
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	103,650,093	166,116,569	101,654,836	$ 6,976,383
Reserve for Exchange Differences in Translation [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	(7,746,933)	(3,292,629)	302,222
Reserve for Exchange Differences in Translation [Member] | GNL Chile S.A. [Member]
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	907,869	1,022,047	900,483
Reserve for Exchange Differences in Translation [Member] | Grupo Enel Generacion Chile S A
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	110,921,404	$ 168,387,151	$ 100,452,131
Reserve for Exchange Differences in Translation [Member] | Enel AMPCI Ebus Chile SpA [Member]
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	$ (432,247)

Equity - Summary of Other Reser

Equity - Summary of Other Reserves Within Equity (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	$ (2,405,509,135)	$ (2,375,672,564)	$ (997,330,548)
Other reserves, Changes	127,883,650	(29,836,571)	(1,378,342,016)
Other reserves, Ending balance	(2,277,625,485)	(2,405,509,135)	(2,375,672,564)
Reserve for Exchange Differences in Translation [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	166,116,569	101,654,836	6,976,383
Other reserves, Changes	(62,466,476)	64,461,733	94,678,453
Other reserves, Ending balance	103,650,093	166,116,569	101,654,836
Reserve for Cash Flow Hedges [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	(291,006,520)	(191,870,545)	(32,849,736)
Other reserves, Changes	188,060,425	(99,135,975)	(159,020,809)
Other reserves, Ending balance	(102,946,095)	(291,006,520)	(191,870,545)
Other Comprehensive Income [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	8,384	11,041	11,284
Other reserves, Changes	(6,601)	(2,657)	(243)
Other reserves, Ending balance	1,783	8,384	11,041
Other Miscellaneous Reserves [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	(2,280,627,568)	(2,285,467,896)	(971,468,479)
Other reserves, Changes	2,296,302	4,840,328	(1,313,999,417)
Other reserves, Ending balance	$ (2,278,331,266)	$ (2,280,627,568)	$ (2,285,467,896)

Equity - Summary of Other Misce

Equity - Summary of Other Miscellaneous Reserves Within Equity (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	$ (2,278,331,266)	$ (2,280,627,568)	$ (2,285,467,896)
Reserve for Corporate Reorganization [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	(534,057,733)	(534,057,733)	(534,057,733)
Reserve for Transition to IFRS [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	(457,221,836)	(457,221,836)	(457,221,836)
Reserve for Subsidiaries Transactions [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	12,502,494	12,502,494	12,502,494
Reserves for Tender Offer of Reorganization of Renewable Assets [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	(910,437,224)	(910,437,224)	(910,437,224)
Reserves" Reorganization of Renewable Assets" [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	(407,354,462)	(407,354,462)	(407,354,462)
Hyperinflation Argentina [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	11,216,652	8,939,332	3,508,753
Other Miscellaneous Reserves [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	$ 7,020,843	$ 7,001,861	$ 7,592,112

Equity - Summary of Non-control

Equity - Summary of Non-controlling Interests (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Non-controlling Interests, Equity	$ 242,358,709	$ 262,585,666
Non-controlling Interests, Profit (Loss)	$ (1,526,522)	19,939,613	$ 51,137,820
Enel Distribucion Chile S.A. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	91.00%
Non-controlling Interests, Equity	$ 8,188,827	7,691,319
Non-controlling Interests, Profit (Loss)	$ 749,261	1,079,941	1,112,709
Enel Generación Chile S.A. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	645.00%
Non-controlling Interests, Equity	$ 111,567,532	126,700,973
Non-controlling Interests, Profit (Loss)	$ (10,006,037)	12,667,880	42,883,953
Empresa Electrica Pehuenche S.A. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	735.00%
Non-controlling Interests, Equity	$ 10,113,358	10,079,858
Non-controlling Interests, Profit (Loss)	$ 6,403,829	6,241,062	6,885,422
Sociedad Agricola de Cameros Ltda. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	4250.00%
Non-controlling Interests, Equity	$ 2,068,169	1,837,612
Non-controlling Interests, Profit (Loss)	$ 230,557	(504,550)	(254,604)
Geotermica del Norte SA [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	1541.00%
Non-controlling Interests, Equity	$ 55,283,359	57,871,809
Non-controlling Interests, Profit (Loss)	$ 645,440	(264,158)	(187,989)
Empresa Nacional de Geotermia SA [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	4900.00%
Non-controlling Interests, Equity	$ 11,134	995,614
Non-controlling Interests, Profit (Loss)	$ (515,293)	(74,963)	41,780
Parque Eolico Talinay Oriente SA [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	3909.00%
Non-controlling Interests, Equity	$ 55,283,519	57,586,860
Non-controlling Interests, Profit (Loss)	945,454	868,127	662,374
Others [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Non-controlling Interests, Equity	(157,189)	(178,379)
Non-controlling Interests, Profit (Loss)	$ 20,267	$ (73,726)	$ (5,825)

Revenue and Other Operating I_3

Revenue and Other Operating Income - Summary of Revenues and Other Operating Income (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Revenue And Other Operating Income [Line Items]
Total Revenues	$ 2,548,384,317	$ 2,624,576,323	$ 2,410,360,459
Temporary leasing of generating facilities	10,662,952	2,777,404
Commodity derivative income	4,473,463	5,967,739	9,819,777
Income from early termination of electricity supply contracts		121,117,605
Income from insurance claims	10,799,437	5,952,589	25,442,309
Other income	11,082,028	10,442,700	11,538,881
Total other income	37,017,880	146,258,037	46,800,967
Energy Sales [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	2,380,736,600	2,405,903,242	2,202,078,088
Generation [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	1,111,508,158	1,090,021,527	1,034,975,160
Generation [Member] | Regulated Customers [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	480,168,004	540,017,333	643,494,066
Generation [Member] | Non-regulated Customers [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	571,587,710	524,559,735	357,725,928
Generation [Member] | Spot Market Sales [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	59,752,444	25,444,459	33,755,166
Electricity and Fuels [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	1,269,228,442	1,315,881,715	1,167,102,928
Electricity and Fuels [Member] | Others [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	124,719,139	132,052,695	123,916,550
Electricity and Fuels [Member] | Residential [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	608,703,250	552,124,205	455,840,910
Electricity and Fuels [Member] | Business [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	366,874,872	450,108,855	378,092,990
Electricity and Fuels [Member] | Industrial [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	168,931,181	181,595,960	209,252,478
Other Sales [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue	58,870,872	124,113,792	123,345,383
Revenue from sale of natural gas	38,808,266	97,564,262	103,717,558
Other Sales [Member] | Sales of Products and Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	20,062,606	26,549,530	19,627,825
Revenue from Other Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	108,776,845	94,559,289	84,936,988
Revenue from Other Services [Member] | Tolls and Transmission [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	41,859,311	31,232,252	20,311,403
Revenue from Other Services [Member] | Metering Equipment Leases [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	3,387,302	2,131,427	4,702,334
Revenue from Other Services [Member] | Services and Business Advisories Provided [Member[
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	53,121,851	47,455,465	45,904,638
Revenue from Other Services [Member] | Other Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	$ 10,408,381	$ 13,740,145	$ 14,018,613

Revenue and Other Operating I_4

Revenue and Other Operating Income - Summary of Revenues and Other Operating Income - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Revenue And Other Operating Income [Line Items]
Estimated and unbilled sales of energy	$ 434,442,879	$ 310,301,370	$ 209,288,934
Revenue form differential in price	77,973,766
Amount of revenue transfer to final customers through its subsidiary	25,154,565
Foregoing revenue recognized	121,117,605
Revenue recovered from customers with unrecorded consumption	3,084,840	2,746,764	2,847,740
Revenues from late payment of invoice amount	456,781	485,684	675,202
Revenues from other operating income services	6,131,609	6,711,675	7,473,012
Revenues from water sales	1,408,798	498,577	542,927
Others [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	7,290,456	3,589,156	1,881,702
Municipalities [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	35,598,366	45,768,456	36,878,861
Government Entities [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	17,334,983	20,432,048	20,246,633
Agricultural Sector Entities [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	10,324,464	9,100,691	6,173,077
Public Services Companies and Telecommunications [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	27,014,443	24,818,503	26,636,066
Educational Area [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	5,749,102	9,367,933	12,470,709
Health Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	$ 21,407,325	$ 18,975,909	$ 19,629,502

Raw Materials and Consumables_3

Raw Materials and Consumables Used - Schedule of Raw Materials and Consumables Used (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Raw Materials And Consumables Used [Line Items]
Energy purchases	$ (864,863,454)	$ (835,284,742)	$ (747,646,603)
Fuel consumption	(231,176,489)	(230,944,415)	(231,028,169)
Transportation costs	(141,539,687)	(196,848,788)	(166,875,801)
Gas Sale costs	(34,332,998)	(74,998,608)	(80,477,713)
Other raw materials and consumables	(102,533,011)	(83,128,698)	(66,148,830)
Total	(1,374,445,639)	(1,421,205,251)	(1,292,177,116)
Gas [Member]
Disclosure Of Raw Materials And Consumables Used [Line Items]
Fuel consumption	(149,734,219)	(134,127,365)	(140,145,010)
Oil [Member]
Disclosure Of Raw Materials And Consumables Used [Line Items]
Fuel consumption	(6,100,077)	(3,326,061)	(11,146,001)
Coal [Member]
Disclosure Of Raw Materials And Consumables Used [Line Items]
Fuel consumption	$ (75,342,193)	$ (93,490,989)	$ (79,737,158)

Employee Benefits Expense - Sum

Employee Benefits Expense - Summary of Employee Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
EMPLOYEE BENEFITS EXPENSE.
Wages and salaries	$ (117,220,406)	$ (109,101,737)	$ (102,897,710)
Post-employment benefit obligations expense	(2,132,231)	(3,153,395)	(1,881,202)
Social security and other contributions	(12,346,828)	(14,334,587)	(13,405,944)
Other employee expenses	(5,527,283)	(3,015,237)	(4,945,478)
Total	$ (137,226,748)	$ (129,604,956)	$ (123,130,334)

Depreciation, Amortization an_3

Depreciation, Amortization and Impairment Losses - Summary of Depreciation, Amortization and Impairment Losses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
DEPRECIATION, AMORTIZATION AND IMPAIRMENT LOSSES.
Depreciation	$ (215,581,938)	$ (224,724,380)	$ (202,971,892)
Amortization	(14,375,081)	(11,903,007)	(12,215,408)
Total	$ (229,957,019)	$ (236,627,387)	$ (215,187,300)

Depreciation, Amortization an_4

Depreciation, Amortization and Impairment Losses - Summary of Depreciation, Amortization and Impairment losses - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment losses recognized in profit or loss for the period	$ (698,235,380)	$ (280,020,263)
Impairment loss recognised in profit or loss, intangible assets other than goodwill	(217,658)
Impairment loss recognised in profit or loss, investment property	646,597	(742,389)	$ (779,825)
Total Reversal of impairment losses (impairment losses) recognized in profit or loss	(697,806,441)	(280,762,652)	(779,825)
Profit from impairment and reversal of impairment losses (impairment losses) determined in accordance with IFRS 9	(15,167,707)	(10,047,000)	(4,783,072)
Bocamina II [Member]
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment losses recognized in profit or loss for the period	(697,856,387)
Generation [Member]
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment losses recognized in profit or loss for the period	(698,235,380)	(280,020,263)
Impairment loss recognised in profit or loss, intangible assets other than goodwill	(217,658)
Total Reversal of impairment losses (impairment losses) recognized in profit or loss	(698,235,380)	(280,020,263)
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9	(1,305,341)	(1,338,599)	(106,264)
Distribution [Member]
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9	(12,998,719)	(8,153,419)	(4,676,808)
Other [Member]
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment loss recognised in profit or loss, investment property	646,597	(742,389)	(779,825)
Total Reversal of impairment losses (impairment losses) recognized in profit or loss	646,597	(742,389)	$ (779,825)
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9	$ (863,647)	$ (554,982)

Other Expenses - Summary of Oth

Other Expenses - Summary of Other Miscellaneous Operating Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
OTHER EXPENSES
Professional, outsourced and other services	$ (74,630,728)	$ (60,819,733)	$ (69,692,677)
Administrative expenses	(7,214,238)	(8,893,785)	(5,991,676)
Repairs and maintenance	(49,051,950)	(50,846,851)	(41,829,409)
Indemnities and fines	(1,029,517)	(1,243,376)	(455,825)
Taxes and charges	(5,675,978)	(6,802,176)	(4,415,819)
Insurance premiums	(19,992,385)	(19,200,681)	(15,794,761)
Leases and rental costs	(4,958,760)	(3,824,195)	(3,775,007)
Marketing, public relations and advertising	(2,491,884)	(3,274,693)	(2,440,070)
Write-off Property, Plant and Equipment		3,510,591
Travel expenses	(2,223,358)	(3,991,349)	(2,436,407)
Environmental expenses	(8,313,182)	(9,886,690)	(9,664,683)
Other supplies and services	(15,011,354)	(11,849,020)	(10,713,687)
Total	$ (190,593,334)	$ (184,143,140)	$ (167,210,021)

Other Gains (Losses) - Summary

Other Gains (Losses) - Summary of Other gains (losses) (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
OTHER GAINS (LOSSES)
Gain on sale of Property, Plant and Equipment	$ 9,384,038	$ 1,530,689	$ 3,024,549
Result of other investments	104,777	262,512	385,830
Total	$ 9,488,815	$ 1,793,201	$ 3,410,379

Financial Results - Summary of

Financial Results - Summary of Financial Income and Costs (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
FINANCIAL RESULTS.
Income from deposits and other financial instruments	$ 7,324,057	$ 8,973,606	$ 9,612,575
Interests charged to customers in energy accounts and billing	12,477,393	8,057,203	7,140,984
Financial income by Law N°21,185	15,328,829	5,225,739
Other financial income	1,030,181	5,142,727	3,180,909
Total Financial Income	36,160,460	27,399,275	19,934,468
Financial Costs	(127,408,771)	(164,897,900)	(122,184,189)
Bank loans	(7,151,030)	(14,487,700)	(20,701,774)
Bonds payable to the public not guaranteed	(84,268,247)	(81,818,564)	(62,255,300)
Lease obligations	(2,128,360)	(1,815,170)	(739,069)
Valuation of financial derivatives for cash flow hedging	(5,887,498)	1,775,749	1,183,228
Financial update of provisions	(4,115,292)	(4,356,650)	(3,176,001)
Post-employment benefit obligations	2,146,386	2,639,738	2,750,376
Debt formalization expenses and other associated expenses	(2,646,906)	(4,710,012)	(9,373,412)
Capitalized borrowing costs	33,109,819	9,321,354	6,435,646
Financial cost related companies	(35,079,947)	(31,304,382)	(23,228,947)
Financial cost by Law N°21,185	(4,518,268)	(19,062,333)
Other financial costs	(12,576,656)	(15,800,454)	(7,578,184)
(Loss) gain from indexed assets and liabilities, net	2,085,768	(2,982,268)	(818,146)
Foreign Currency Exchange Differences	(23,272,231)	(10,412,110)	(7,807,197)
Total Financial Costs	(148,595,234)	(178,292,278)	(130,809,532)
Total Financial Results	$ (112,434,774)	$ (150,893,003)	$ (110,875,064)

Financial Results - Summary o_2

Financial Results - Summary of Effects on Exchange Differences and Application of Indexed Assets and Liabilities (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	$ 4,264,332	$ 2,382,630	$ 2,968,179
Intangible assets other than goodwill	142	203	180
Property, plant and equipment	764,982	1,132,453	1,035,084
Deferred tax liabilities	(548,505)
Equity	(2,434,384)	(5,805,120)	(3,743,959)
Other Provision of Services	(1,246)		(1,189,452)
Energy Sales		(1,352,295)
Energy Purchases		432
Other variable supplies and services			21,503
Work for the Fixed Assets		103,512
Personal expenses	130,213	166,715	143,148
Other fixed operating expenses	108,226	23,714	147,975
Financial income	(204,137)	(367,059)	(268,511)
Financial expenses	6,145	732,547	67,707
Sub total Hyperinflation result	(2,178,564)	(5,364,898)	(3,786,325)
Gains from indexed assets and liabilities, net	2,085,768	(2,982,268)	(818,146)
Foreign Currency Exchange Differences	(23,272,231)	(10,412,110)	(7,807,197)
Exchange effect on account receivable	(36,494,889)
Exchange effect on account payables	11,234,506
Cash And Cash Equivalent [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross		36,797
Foreign Currency Exchange Differences	10,110,166	(937,177)	(415,962)
Other Financial Asset [Member]
Disclosure Of Financial Results [Line Items]
Foreign Currency Exchange Differences	6,316,333	2,052,540	5,733,173
Other Non Financial Asset [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross			45,108
Foreign Currency Exchange Differences	6,086,388	(1,712,690)	(534,401)
Trade and Other Receivables [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	2,212,324	1,410,408	1,197,498
Foreign Currency Exchange Differences	(24,504,740)	8,847,969	726,347
Current Tax Assets and Liabilities [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	1,026,963	2,557,465	3,424,644
Foreign Currency Exchange Differences	(4,361,506)	(1,633,471)	(1,903,963)
Other financial liabilities (financial debt and derivative instruments) [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	980,933	(1,637,291)	(1,714,216)
Foreign Currency Exchange Differences	(10,265,859)	(8,147,939)	(5,726,246)
Trade and Other Payables [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	241,532	16,939	15,145
Foreign Currency Exchange Differences	(5,755,302)	(9,381,721)	(5,379,210)
Other provisions [member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	(196,777)
Other Non Financial Liability [Member]
Disclosure Of Financial Results [Line Items]
Gains (losses) from Indexed Assets and Liabilities, Gross	(643)	(1,688)
Foreign Currency Exchange Differences	$ (897,711)	$ 500,379	$ (306,935)

Information by Segment - Summar

Information by Segment - Summary of Assets and Liabilities by Segment (Detail) in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2017CLP ($)	Dec. 20, 2017CLP ($)
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS				$ 1,026,401,196,000		$ 1,018,212,660,000
Cash and cash equivalents				332,036,013,000		235,684,500,000
Other current financial assets				3,352,404,000		1,310,595,000
Other current non-financial assets				19,801,573,000		34,634,563,000
Trade and other receivables, current				554,886,639,000		511,455,330,000
Current accounts receivable from related parties				57,976,125,000		68,182,133,000
Inventories				23,310,029,000		39,672,250,000
Current tax assets				35,038,413,000		127,273,289,000
TOTAL NON-CURRENT ASSETS				6,878,070,388,000		6,839,775,504,000
Other non-current financial assets				20,660,450,000		7,220,620,000
Other non-current non-financial assets				65,787,215,000		38,050,184,000
Trade and other non-current receivables				445,016,566,000		313,574,385,000
Non-Current accounts payable from related companies	$ 48,358,915,000	$ 34,407,142,000
Investments accounted for using the equity method				12,992,803,000		7,928,588,000	$ 12,873,531,000
Intangible assets other than goodwill			165,114,521	165,114,521,000	132,278,593	132,278,593,000	115,372,393,000
Goodwill				915,705,369,000		917,352,974,000	915,044,725,000
Property, plant and equipment				5,033,496,472,000		5,304,476,114,000	5,290,992,961,000
Investment property				7,421,940,000		6,795,155,000	7,557,356,000
Assets for right of use				55,502,192,000		55,843,510,000
Deferred tax assets				108,013,945,000		21,848,239,000
TOTAL ASSETS				7,904,471,584,000		7,857,988,164,000
TOTAL CURRENT LIABILITIES				1,045,480,165,000		1,041,299,852,000
Other current financial liabilities				157,499,141,000		208,814,561,000
Current lease liabilities				7,007,711,000		5,842,015,000
Trade and other payables, current			627,958,022	627,958,022,000		599,263,208,000
Current accounts payable to related parties				130,053,962,000		159,809,887,000
Other current provisions				3,434,804,000		4,065,965,000
Current tax liabilities				72,359,944,000		17,995,833,000
Other current non-financial liabilities				47,166,581,000		45,508,383,000
TOTAL NON-CURRENT LIABILITIES				3,264,716,920,000		3,069,404,660,000
Other non-current financial liabilities				1,483,589,126,000		1,692,604,245,000
Non-current lease liabilities				44,857,807,000		47,565,674,000
Trade and other payables non-current				117,210,059,000		56,250,085,000
Non-Current accounts payable to related parties				1,164,044,462,000		784,373,484,000
Other long-term provisions				210,241,671,000		171,860,282,000
Deferred tax liabilities				168,057,562,000		249,284,641,000
Non-current provisions for employee benefits				75,538,265,000		66,163,490,000
Other non-current non-financial liabilities				1,177,968,000		1,302,759,000
TOTAL EQUITY				3,594,274,499,000		3,747,283,652,000	3,674,163,781,000	$ 3,786,961,657,000
Equity attributable to Enel Chile				3,351,915,790,000		3,484,697,986,000
Allocated capital				3,882,103,470,000		3,882,103,470,000			$ 1,891,727,278,668
Retained earnings				1,747,437,805,000		2,008,103,651,000
Other reserves				(2,277,625,485,000)		(2,405,509,135,000)	$ (2,375,672,564,000)	$ (997,330,548,000)
Non-controlling interests				242,358,709,000		262,585,666,000
TOTAL LIABILITIES AND EQUITY				7,904,471,584,000		7,857,988,164,000
Operating Segments [Member] | Generation [Member]
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS				581,661,790,000		941,262,837,000
Cash and cash equivalents				4,971,820,000		26,391,853,000
Other current financial assets				2,562,093,000		489,658,000
Other current non-financial assets				11,665,802,000		8,908,239,000
Trade and other receivables, current				285,241,891,000		230,670,997,000
Current accounts receivable from related parties				232,991,789,000		587,067,775,000
Inventories				18,163,284,000		34,705,515,000
Current tax assets				26,065,111,000		53,028,800,000
TOTAL NON-CURRENT ASSETS				4,722,779,027,000		4,771,905,050,000
Other non-current financial assets				20,660,446,000		7,189,431,000
Other non-current non-financial assets				62,608,451,000		34,903,436,000
Trade and other non-current receivables				166,469,458,000		88,225,632,000
Non-Current accounts payable from related companies	141,649,129,000	80,926,788,000
Investments accounted for using the equity method				9,551,139,000		7,928,588,000
Intangible assets other than goodwill				94,464,506,000		76,077,944,000
Goodwill				32,682,252,000		33,135,272,000
Property, plant and equipment				4,037,877,000,000		4,370,419,860,000
Assets for right of use				50,373,648,000		52,155,733,000
Deferred tax assets				106,442,998,000		20,942,366,000
TOTAL ASSETS				5,304,440,817,000		5,713,167,887,000
TOTAL CURRENT LIABILITIES				903,590,885,000		844,513,549,000
Other current financial liabilities				155,592,371,000		206,888,115,000
Current lease liabilities				5,495,257,000		5,039,971,000
Trade and other payables, current				416,425,675,000		300,957,548,000
Current accounts payable to related parties				237,326,397,000		296,861,070,000
Other current provisions				2,933,069,000		3,619,734,000
Current tax liabilities				65,963,158,000		17,717,789,000
Other current non-financial liabilities				19,854,958,000		13,429,322,000
TOTAL NON-CURRENT LIABILITIES				1,647,789,150,000		1,899,077,568,000
Other non-current financial liabilities				774,737,983,000		954,402,603,000
Non-current lease liabilities				41,147,046,000		44,572,348,000
Trade and other payables non-current				4,286,773,000		2,281,053,000
Non-Current accounts payable to related parties				457,825,939,000		486,839,484,000
Other long-term provisions				194,653,912,000		160,006,401,000
Deferred tax liabilities				152,083,137,000		231,156,234,000
Non-current provisions for employee benefits				23,054,360,000		19,819,445,000
TOTAL EQUITY				2,753,060,782,000		2,969,576,770,000
Equity attributable to Enel Chile				2,753,060,782,000		2,969,576,770,000
Allocated capital				1,403,737,121,000		1,185,731,351,000
Retained earnings				1,473,514,878,000		1,735,720,458,000
Share Premium				85,511,492,000		85,511,492,000
Treasury shares				(252,632,367,000)
Other reserves				42,929,658,000		(37,386,531,000)
TOTAL LIABILITIES AND EQUITY				5,304,440,817,000		5,713,167,887,000
Operating Segments [Member] | Distribution [Member]
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS				282,024,842,000		289,393,932,000
Cash and cash equivalents				3,657,471,000		2,331,365,000
Other current financial assets				29,977,000		64,220,000
Other current non-financial assets				2,830,106,000		8,868,077,000
Trade and other receivables, current				259,172,712,000		260,840,410,000
Current accounts receivable from related parties				4,269,460,000		10,115,510,000
Inventories				3,397,415,000		3,150,943,000
Current tax assets				8,667,701,000		4,023,407,000
TOTAL NON-CURRENT ASSETS				1,369,182,558,000		1,175,550,962,000
Other non-current financial assets				4,000		22,741,000
Other non-current non-financial assets				2,791,875,000		2,576,585,000
Trade and other non-current receivables				277,378,406,000		157,051,933,000
Intangible assets other than goodwill				65,335,352,000		51,360,795,000
Goodwill				2,240,478,000		2,240,478,000
Property, plant and equipment				1,015,249,248,000		957,752,454,000
Assets for right of use				5,117,436,000		3,640,103,000
Deferred tax assets				1,069,759,000		905,873,000
TOTAL ASSETS				1,651,207,400,000		1,464,944,894,000
TOTAL CURRENT LIABILITIES				335,412,469,000		317,248,207,000
Other current financial liabilities				77,554,000		1,000
Current lease liabilities				1,505,677,000		738,782,000
Trade and other payables, current				190,709,618,000		200,472,938,000
Current accounts payable to related parties				118,883,364,000		87,507,312,000
Current tax liabilities				95,556,000		34,718,000
Other current non-financial liabilities				24,140,700,000		28,494,456,000
TOTAL NON-CURRENT LIABILITIES				415,149,858,000		301,769,861,000
Other non-current financial liabilities				4,000
Non-current lease liabilities				3,704,860,000		2,993,326,000
Trade and other payables non-current				112,922,799,000		53,968,545,000
Non-Current accounts payable to related parties				228,805,329,000		182,031,404,000
Other long-term provisions				15,587,759,000		11,853,881,000
Deferred tax liabilities				20,212,892,000		19,818,625,000
Non-current provisions for employee benefits				32,738,247,000		29,801,321,000
Other non-current non-financial liabilities				1,177,968,000		1,302,759,000
TOTAL EQUITY				900,645,073,000		845,926,826,000
Equity attributable to Enel Chile				900,645,073,000		845,926,826,000
Allocated capital				230,137,980,000		230,137,980,000
Retained earnings				988,991,623,000		933,560,288,000
Share Premium				354,220,000		354,220,000
Other reserves				(318,838,750,000)		(318,125,662,000)
TOTAL LIABILITIES AND EQUITY				1,651,207,400,000		1,464,944,894,000
Holdings, Eliminations and Others [Member]
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS				(162,714,564,000)		212,444,109,000
Cash and cash equivalents				(323,406,722,000)		(206,961,282,000)
Other current financial assets				(760,334,000)		(756,717,000)
Other current non-financial assets				(5,305,665,000)		(16,858,247,000)
Trade and other receivables, current				(10,472,036,000)		(19,943,923,000)
Current accounts receivable from related parties				(179,285,124,000)		(529,001,152,000)
Inventories				(1,749,330,000)		(1,815,792,000)
Current tax assets				(305,601,000)		(70,221,082,000)
TOTAL NON-CURRENT ASSETS				(786,108,803,000)		(892,319,492,000)
Other non-current financial assets						(8,448,000)
Other non-current non-financial assets				(386,889,000)		(570,163,000)
Trade and other non-current receivables				(1,168,702,000)		(68,296,820,000)
Non-Current accounts payable from related companies	$ (93,290,214,000)	$ (46,519,646,000)
Investments accounted for using the equity method				(3,441,664,000)
Intangible assets other than goodwill				(5,314,663,000)		(4,839,854,000)
Goodwill				(880,782,639,000)		(881,977,224,000)
Property, plant and equipment				(19,629,776,000)		(23,696,200,000)
Investment property				(7,421,940,000)		(6,795,155,000)
Assets for right of use				(11,108,000)		(47,674,000)
Deferred tax assets				(501,188,000)
TOTAL ASSETS				(948,823,367,000)		(679,875,383,000)
TOTAL CURRENT LIABILITIES				(193,523,189,000)		(120,461,904,000)
Other current financial liabilities				(1,829,216,000)		(1,926,445,000)
Current lease liabilities				(6,777,000)		(63,262,000)
Trade and other payables, current				(20,822,729,000)		(97,832,722,000)
Current accounts payable to related parties				(226,155,799,000)		(224,558,495,000)
Other current provisions				(501,735,000)		(446,231,000)
Current tax liabilities				(6,301,230,000)		(243,326,000)
Other current non-financial liabilities				(3,170,923,000)		(3,584,605,000)
TOTAL NON-CURRENT LIABILITIES				(1,201,777,912,000)		(868,557,231,000)
Other non-current financial liabilities				(708,851,139,000)		(738,201,642,000)
Non-current lease liabilities				(5,901,000)
Trade and other payables non-current				(487,000)		(487,000)
Non-Current accounts payable to related parties				(477,413,194,000)		(115,502,596,000)
Deferred tax liabilities				(4,238,467,000)		(1,690,218,000)
Non-current provisions for employee benefits				(19,745,658,000)		(16,542,724,000)
TOTAL EQUITY				(59,431,356,000)		(68,219,944,000)
Equity attributable to Enel Chile				(59,431,356,000)		(68,219,944,000)
Allocated capital				(2,248,228,369,000)		(2,466,234,139,000)
Retained earnings				(715,068,696,000)		(661,177,095,000)
Share Premium				(85,865,712,000)		(85,865,712,000)
Treasury shares				252,632,367,000
Other reserves				(1,759,357,684,000)		(1,787,411,276,000)
TOTAL LIABILITIES AND EQUITY				$ (948,823,367,000)		$ (679,875,383,000)

Information by Segment - Summ_2

Information by Segment - Summary of Comprehensive Income by Segment (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	$ 2,585,402,197	$ 2,770,834,360	$ 2,457,161,426
Total Revenues	2,548,384,317	2,624,576,323	2,410,360,459
Other operating income	37,017,880	146,258,037	46,800,967
Total	(1,374,445,639)	(1,421,205,251)	(1,292,177,116)
Energy purchases	(864,863,454)	(835,284,742)	(747,646,603)
Fuel consumption	(231,176,489)	(230,944,415)	(231,028,169)
Transportation costs	(141,539,687)	(196,848,788)	(166,875,801)
Contribution Margin	1,210,956,558	1,349,629,109	1,164,984,310
Other work performed by the entity and capitalized	25,539,316	17,610,861	16,710,963
Employee benefits expense	(137,226,748)	(129,604,956)	(123,130,334)
Other expenses, by nature	(190,593,334)	(184,143,140)	(167,210,021)
Operating Income	(34,255,375)	526,054,835	670,604,721
Depreciation and amortization expense	(229,957,019)	(236,627,387)	(215,187,300)
Profit from impairment and reversal of impairment losses (impairment losses) determined in accordance with IFRS 9	(15,167,707)	(10,047,000)	(4,783,072)
FINANCIAL RESULT	(112,434,774)	(150,893,003)	(110,875,064)
Total Financial Income	36,160,460	27,399,275	19,934,468
Other financial income	1,030,181	5,142,727	3,180,909
Financial Costs	(127,408,771)	(164,897,900)	(122,184,189)
(Loss) gain from indexed assets and liabilities, net	2,085,768	(2,982,268)	(818,146)
Foreign Currency Exchange Differences	(23,272,231)	(10,412,110)	(7,807,197)
Share of profit (loss) of associates and joint ventures accounted for using the equity method	3,509,392	366,089	3,190,240
Total	9,488,815	1,793,201	3,410,379
(Loss) Profit before taxes	(133,691,942)	377,321,122	566,330,276
Income tax expense	81,305,107	(61,227,904)	(153,482,519)
(LOSS) PROFIT	(52,386,835)	316,093,218	412,847,757
(Loss) Profit attributable to owners of the parent	(50,860,313)	296,153,605	361,709,937
(Loss) Profit attributable to non-controlling interests	(1,526,522)	19,939,613	51,137,820
Operating Segments [Member]
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	2,585,402,197	2,770,834,360	2,457,161,426
Total Revenues	2,548,384,317	2,624,576,323	2,410,360,459
Energy sales	2,380,736,600	2,405,903,242	2,202,078,088
Other sales	58,870,872	124,113,792	123,345,383
Other services rendered	108,776,845	94,559,289	84,936,988
Other operating income	37,017,880	146,258,037	46,800,967
Total	(1,374,445,639)	(1,421,205,251)	(1,292,177,116)
Energy purchases	(864,863,454)	(835,284,743)	(747,646,602)
Fuel consumption	(231,176,490)	(230,944,414)	(231,028,169)
Transportation costs	(141,539,687)	(196,848,788)	(166,875,802)
Other miscellaneous supplies and services	(136,866,008)	(158,127,306)	(146,626,543)
Contribution Margin	1,210,956,558	1,349,629,109	1,164,984,310
Other work performed by the entity and capitalized	25,539,316	17,610,861	16,710,963
Employee benefits expense	(137,226,748)	(129,604,956)	(123,130,334)
Other expenses, by nature	(190,593,334)	(184,143,140)	(167,210,021)
Operating Income	908,675,792	1,053,491,874	891,354,918
Depreciation and amortization expense	(229,957,019)	(236,627,387)	(215,187,300)
Profit from impairment and reversal of impairment losses (impairment losses) determined in accordance with IFRS 9	(697,806,441)	(280,762,652)	(779,825)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(15,167,707)	(10,047,000)	(4,783,072)
OPERATING INCOME	(34,255,375)	526,054,835	670,604,721
FINANCIAL RESULT	(112,434,774)	(150,893,003)	(110,875,064)
Total Financial Income	36,160,460	27,399,275	19,934,468
Cash and cash equivalents	7,324,057	8,973,606	9,612,575
Other financial income	28,836,403	18,425,669	10,321,893
Financial Costs	(127,408,771)	(164,897,900)	(122,184,189)
Bank borrowings	(7,151,030)	(14,487,700)	(20,701,774)
Secured and unsecured obligations	(84,268,247)	(81,818,564)	(62,255,300)
Other	(35,989,494)	(68,591,636)	(39,227,115)
(Loss) gain from indexed assets and liabilities, net	2,085,768	(2,982,268)	(818,146)
Foreign Currency Exchange Differences	(23,272,231)	(10,412,110)	(7,807,197)
Share of profit (loss) of associates and joint ventures accounted for using the equity method	3,509,392	366,089	3,190,240
Total	9,488,815	1,793,201	3,410,379
Gain (loss) from other investments	104,777	262,512	385,830
Gain (loss) from the sale of property, plant and equipment	9,384,038	1,530,689	3,024,549
(Loss) Profit before taxes	(133,691,942)	377,321,122	566,330,276
Income tax expense	81,305,107	(61,227,904)	(153,482,519)
Net income from continuing operations	(52,386,835)	316,093,218	412,847,757
(LOSS) PROFIT	(52,386,835)	316,093,218	412,847,757
(Loss) Profit attributable to owners of the parent	(50,860,313)	296,153,605	361,709,937
(Loss) Profit attributable to non-controlling interests	(1,526,522)	19,939,613	51,137,820
Operating Segments [Member] | Generation [Member]
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	1,577,422,263	1,726,611,508	1,580,653,088
Total Revenues	1,543,647,794	1,581,230,963	1,540,352,133
Energy sales	1,494,203,779	1,472,565,933	1,425,942,129
Other sales	38,825,239	97,870,470	103,779,801
Other services rendered	10,618,776	10,794,560	10,630,203
Other operating income	33,774,469	145,380,545	40,300,955
Total	(616,852,308)	(678,187,609)	(709,506,221)
Energy purchases	(177,049,909)	(160,044,206)	(213,114,437)
Fuel consumption	(231,176,490)	(230,944,414)	(231,028,169)
Transportation costs	(113,704,101)	(169,062,680)	(154,044,158)
Other miscellaneous supplies and services	(94,921,808)	(118,136,309)	(111,319,457)
Contribution Margin	960,569,955	1,048,423,899	871,146,867
Other work performed by the entity and capitalized	15,581,738	8,887,421	8,663,737
Employee benefits expense	(65,564,485)	(62,871,525)	(61,991,737)
Other expenses, by nature	(121,366,276)	(120,522,841)	(104,190,567)
Operating Income	789,220,932	873,916,954	713,628,300
Depreciation and amortization expense	(185,479,080)	(196,623,025)	(179,901,682)
Profit from impairment and reversal of impairment losses (impairment losses) determined in accordance with IFRS 9	(698,453,039)	(280,020,263)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(1,305,341)	(1,338,599)	(106,264)
OPERATING INCOME	(96,016,528)	395,935,067	533,620,354
FINANCIAL RESULT	(80,090,891)	(101,324,905)	(86,621,659)
Total Financial Income	15,080,015	15,241,046	8,727,356
Cash and cash equivalents	597,718	3,556,554	5,673,621
Other financial income	14,482,297	11,684,492	3,053,735
Financial Costs	(59,088,322)	(111,219,566)	(82,878,715)
Bank borrowings	(7,112,931)	(11,813,855)	(9,269,535)
Secured and unsecured obligations	(47,654,290)	(45,714,879)	(43,965,839)
Other	(4,321,101)	(53,690,832)	(29,643,341)
(Loss) gain from indexed assets and liabilities, net	(703,130)	(5,157,076)	(2,480,291)
Foreign Currency Exchange Differences	(35,379,454)	(189,309)	(9,990,009)
Share of profit (loss) of associates and joint ventures accounted for using the equity method	2,424,250	366,089	3,190,240
Total	9,478,528	1,683,246	3,434,503
Gain (loss) from other investments	94,490	152,557	409,954
Gain (loss) from the sale of property, plant and equipment	9,384,038	1,530,689	3,024,549
(Loss) Profit before taxes	(164,204,641)	296,659,497	453,623,438
Income tax expense	97,419,625	(40,347,869)	(113,783,941)
Net income from continuing operations	(66,785,016)	256,311,628	339,839,497
(LOSS) PROFIT	(66,785,016)	256,311,628	339,839,497
Operating Segments [Member] | Distribution [Member]
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	1,382,068,220	1,412,871,738	1,263,224,072
Total Revenues	1,376,425,433	1,408,588,042	1,254,943,604
Energy sales	1,270,159,653	1,318,386,716	1,170,129,333
Other sales	6,601,069	9,365,186	16,411,425
Other services rendered	99,664,711	80,836,140	68,402,846
Other operating income	5,642,787	4,283,696	8,280,468
Total	(1,116,324,483)	(1,114,936,281)	(972,499,918)
Energy purchases	(1,060,494,642)	(1,056,562,636)	(926,385,346)
Transportation costs	(23,694,571)	(22,725,942)	(9,816,883)
Other miscellaneous supplies and services	(32,135,270)	(35,647,703)	(36,297,689)
Contribution Margin	265,743,737	297,935,457	290,724,154
Other work performed by the entity and capitalized	9,805,315	8,723,440	6,667,947
Employee benefits expense	(37,496,730)	(34,828,194)	(32,598,818)
Other expenses, by nature	(79,580,559)	(70,678,241)	(64,179,201)
Operating Income	158,471,763	201,152,462	200,614,082
Depreciation and amortization expense	(45,583,947)	(40,705,580)	(36,677,957)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(12,998,719)	(8,153,419)	(4,676,808)
OPERATING INCOME	99,889,097	152,293,463	159,259,317
FINANCIAL RESULT	5,929,058	5,232,127	6,088,801
Total Financial Income	22,717,208	22,742,687	11,166,433
Cash and cash equivalents	1,562,194	1,456,253	1,633,373
Other financial income	21,155,014	21,286,434	9,533,060
Financial Costs	(17,696,544)	(19,061,123)	(6,724,490)
Bank borrowings	(33,244)	(40,508)	(5,374)
Other	(17,663,300)	(19,020,615)	(6,719,116)
(Loss) gain from indexed assets and liabilities, net	1,124,304	1,843,435	1,616,607
Foreign Currency Exchange Differences	(215,910)	(292,872)	30,251
Total	10,287	12
Gain (loss) from other investments	10,287	12
(Loss) Profit before taxes	105,828,442	157,525,602	165,348,118
Income tax expense	(23,421,217)	(38,748,555)	(42,967,123)
Net income from continuing operations	82,407,225	118,777,047	122,380,995
(LOSS) PROFIT	82,407,225	118,777,047	122,380,995
Holdings, Eliminations and Others [Member]
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	(374,088,286)	(368,648,886)	(386,715,734)
Total Revenues	(371,688,910)	(365,242,682)	(384,935,278)
Energy sales	(383,626,832)	(385,049,407)	(393,993,374)
Other sales	(13,444,564)	(16,878,136)	(3,154,157)
Other services rendered	(1,506,642)	(2,928,589)	(5,903,939)
Other operating income	(2,399,376)	(3,406,204)	(1,780,456)
Total	358,731,152	371,918,639	389,829,023
Energy purchases	372,681,097	381,322,099	391,853,181
Transportation costs	4,141,015	5,060,166	3,014,761
Other miscellaneous supplies and services	9,808,930	4,343,294	990,603
Contribution Margin	(15,357,134)	(3,269,753)	(3,113,289)
Other work performed by the entity and capitalized	(152,263)		(1,379,279)
Employee benefits expense	34,165,533	31,905,237	28,539,779
Other expenses, by nature	10,353,501	7,057,942	1,159,747
Operating Income	(39,016,903)	(21,577,542)	(22,887,464)
Depreciation and amortization expense	1,106,008	701,218	1,392,339
Profit from impairment and reversal of impairment losses (impairment losses) determined in accordance with IFRS 9	646,598	(742,389)	(779,825)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	863,647	554,982
OPERATING INCOME	(38,127,944)	(22,173,695)	(22,274,950)
FINANCIAL RESULT	(38,272,941)	(54,800,225)	(30,342,206)
Total Financial Income	(1,636,763)	(10,584,458)	(40,679)
Cash and cash equivalents	(5,164,145)	(3,960,799)	(2,305,581)
Other financial income	(6,800,908)	(14,545,257)	(2,264,902)
Financial Costs	50,623,905	34,617,211	32,580,984
Bank borrowings	4,855	2,633,337	11,426,865
Secured and unsecured obligations	(36,613,957)	(36,103,685)	(18,289,461)
Other	14,005,093	4,119,811	2,864,658
(Loss) gain from indexed assets and liabilities, net	(1,664,594)	(331,373)	(45,538)
Foreign Currency Exchange Differences	(12,323,133)	(9,929,929)	(2,152,561)
Share of profit (loss) of associates and joint ventures accounted for using the equity method	(1,085,142)
Total		(109,943)	(24,124)
Gain (loss) from other investments		(109,943)	(24,124)
(Loss) Profit before taxes	(75,315,743)	(76,863,977)	(52,641,280)
Income tax expense	7,306,699	17,868,520	3,268,545
Net income from continuing operations	(68,009,044)	(58,995,457)	(49,372,735)
(LOSS) PROFIT	$ (68,009,044)	$ (58,995,457)	$ (49,372,735)

Information by Segment - Summ_3

Information by Segment - Summary of Cash Flow By Segment (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	$ 755,866,198	$ 743,711,719	$ 735,525,522
Cash flows from (used in) investing activities	(554,651,390)	(311,531,811)	(1,881,559,694)
Cash flows from (used in) financing activities	(127,669,334)	(440,435,688)	966,576,876
Operating Segments [Member]
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	755,866,198	743,711,719	735,525,522
Cash flows from (used in) investing activities	(554,651,390)	(311,531,811)	(1,881,559,694)
Cash flows from (used in) financing activities	(127,669,334)	(440,435,688)	966,576,876
Operating Segments [Member] | Generation [Member]
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	551,979,917	754,113,794	638,607,494
Cash flows from (used in) investing activities	(100,557,328)	(426,038,012)	(451,284,432)
Cash flows from (used in) financing activities	(469,832,875)	(453,927,358)	(249,051,150)
Operating Segments [Member] | Distribution [Member]
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	111,689,249	50,246,845	117,692,384
Cash flows from (used in) investing activities	(111,939,127)	(28,896,947)	(123,070,452)
Cash flows from (used in) financing activities	1,578,034	(23,901,991)	(32,268,227)
Holdings, Eliminations and Others [Member]
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	(92,197,032)	(60,648,920)	(20,774,356)
Cash flows from (used in) investing activities	(342,154,935)	(143,403,148)	(1,307,204,810)
Cash flows from (used in) financing activities	$ (340,585,507)	$ (37,393,661)	$ (1,247,896,253)

Guarantees with Third Parties_3

Guarantees with Third Parties, Contingent Assets and, Liabilities, and Other Commitments (Detail) $ in Thousands	Aug. 05, 2020CLP ($)	Jul. 24, 2020CLP ($)	May 13, 2020CLP ($)	Mar. 18, 2020	Feb. 20, 2020CLP ($)	Feb. 05, 2020CLP ($)	Jan. 28, 2019CLP ($)	Dec. 21, 2018CLP ($)	Jul. 28, 2018customer	Jul. 23, 2018CLP ($)	Jul. 20, 2018CLP ($)	Jun. 13, 2018CLP ($)	Dec. 29, 2017CLF ( )	Dec. 29, 2017CLP ($)	Nov. 07, 2017CLP ($)	Nov. 03, 2017CLP ($)	Dec. 31, 2020CLF ( )	Dec. 31, 2020USD ($)	Dec. 31, 2020CLP ($)	Dec. 31, 2020CLP ($)	Aug. 05, 2020CLF ( )	Jul. 24, 2020CLF ( )	May 13, 2020CLF ( )	Feb. 20, 2020CLF ( )	Feb. 05, 2020CLF ( )	Dec. 31, 2019CLP ($)	Jan. 28, 2019CLF ( )	Jul. 23, 2018CLF ( )	Jul. 20, 2018CLF ( )	Jun. 13, 2018CLF ( )	Nov. 03, 2017CLF ( )
Disclosure Of Other Provisions [Line Items]
Provision amount																				$ 10,882,854,000
Cross default limit																		$ 150,000
Percentage of debt repayment acceleration																		50.00%		50.00%
Percentage of telework employees working remotely				75.00%
Enel Distribucion Chile S.A. [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			$ 2,000,000,000
Litigation claim amount for punitive damages								$ 70,000,000							$ 90,000,000
Number of customers without electricity supply for period exceeding 20 hours											100,000
Fine imposed by Superintendence of electricity and fuels |													20,000								1,000	40,000	10,000	1,000	10,000		16,911	10,000	80,000	2,000	35,611
Fine of illegality claim against the superintendence of electricity and fuels	$ 51,029,000	$ 2,041,160,000	$ 510,290,000		$ 51,029,000	$ 510,290,000	$ 862,951,000			$ 510,290,000	$ 4,082,320,000	$ 102,058,000		$ 1,020,580,000		$ 1,817,194,000
Number of new consumers joined in lawsuit | customer									233,000
Enel Distribucion Chile S.A. [Member] | Ms. Camila Paz Castillo Abarca [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			1,000,000,000
Enel Distribucion Chile S.A. [Member] | Ms. Kimora Belen Fernandez Castillo [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			500,000
Enel Distribucion Chile S.A. [Member] | Mr. Victor Hugo Coronado Gonzalez [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			704,860,000
Litigation claim amount of damages for lost profits																			264,860,000
Litigation claim amount for punitive damages																			440,000,000
Ingenieria Electrica Azeta Ltda and Enel Distribucion Chile S.A. [Member] | Ms. Ximena Acevedo Herrera [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			878,227,000
Litigation claim amount of damages for lost profits																			28,227,000
Litigation claim amount for punitive damages																			850,000,000
Enel Green Power Chile Group
Disclosure Of Other Provisions [Line Items]
Cross default limit																		$ 50,000
Proceeds from borrowings																		$ 30,000
Debt obligations																				$ 21,354,969,000
Tort Liability lawsuit [Member] | Enel Chile SA [Member] | Inversiones Tricahue [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			72,558,025,000
Tort Liability lawsuit [Member] | Enel Chile SA [Member] | Inversiones Tricahue Subsidiary [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																			12,431,395,000
Breach of Contract [Member] | Enel Distribucion Chile S.A. [Member] | Inmobiliaria Proyecto CR S.A. [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages																	253,422		$ 7,367,061,000
Erroneous information to the regulatory body regarding the supply restoration [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Other Provisions [Line Items]
Litigation claims settlement amount													10,000	$ 510,290,000
Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Percentage of bondholders, demands debt acceleration																	50.00%	50.00%	50.00%
Energy purchase commitments [Member]
Disclosure Of Other Provisions [Line Items]
Future energy purchase commitments																				6,458,055,505						$ 7,647,064,710
Yankee Bonds [Member] | Enel Chile SA [Member]
Disclosure Of Other Provisions [Line Items]
Cross default limit																		$ 150,000
Percentage of bondholders, demands debt acceleration																	25.00%	25.00%	25.00%
Bonds outstanding																				697,736,223,000
Yankee Bonds [Member] | Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Cross default limit																		$ 50,000
Percentage of bondholders, demands debt acceleration																	25.00%	25.00%	25.00%
Bonds outstanding																				510,368,873,000
Enel Generación Chile Bonds [Member] | Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Cross default limit																		$ 30,000
Local Bonds [Member] | Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Bonds outstanding																				283,294,982,000
Series H [Member]
Disclosure Of Other Provisions [Line Items]
Financial debt to capitalization ratio, maximum																	0.64%	0.64%	0.64%
Minimum equity requirement																				761,684,000,000
Equity																				$ 1,729,218,000,000
Financial expense coverage ratio																	19.75%	19.75%	19.75%
Net asset position																		$ 244,150
Series H [Member] | Bottom of Range [Member]
Disclosure Of Other Provisions [Line Items]
Financial expense coverage ratio																	1.85%	1.85%	1.85%
Series H [Member] | Top of Range [Member]
Disclosure Of Other Provisions [Line Items]
Net asset position																		$ 500,000
Series M [Member]
Disclosure Of Other Provisions [Line Items]
Debt to capitalization ratio																		0.31%		0.31%

Guarantees with Third Parties_4

Guarantees with Third Parties, Contingent Assets and, Liabilities, and Other Commitments - Summary of Indirect Guarantees (Detail) - Indirect Guarantees [Member] - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Bonds Series B [Member] | Bondholders of Enel Americas' Bonds [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Bonds Series B (*)
Maturity	October 2028
Creditor Of Guarantee	Bondholders of Enel Américas' Bonds
Debtor, Company	Enel Américas
Relationship	Entities demerged from original debtor Enersis S.A. (codebtor Enel Chile S.A.)
Type of Guarantee	Codebtor
Outstanding balance	$ 7,672,851	$ 11,646,991
Credit Agreement One [Member] | Scotiabank Chile [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Credit agreement
Maturity	December 2020
Creditor Of Guarantee	Scotiabank Chile
Debtor, Company	Enel Green Power Chile S.A.
Relationship	Subsidiary
Type of Guarantee	Guarantor
Outstanding balance		112,882,048
Credit Agreement One [Member] | Pto. GDN BID [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Credit agreement
Maturity	December 2021
Creditor Of Guarantee	Scotiabank Chile
Debtor, Company	Enel Green Power Chile S.A.
Relationship	Subsidiary
Type of Guarantee	Guarantor
Outstanding balance	$ 106,811,188	113,069,511
Credit Agreement Two [Member] | Scotiabank Chile [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Credit agreement
Maturity	November 2022
Creditor Of Guarantee	Pto. GDN BID
Debtor, Company	Enel Green Power Chile S.A.
Relationship	Subsidiary
Type of Guarantee	Guarantor
Outstanding balance	$ 21,368,491	22,592,723
Credit Agreement Three [Member] | Scotiabank Chile [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Guarantee contract
Maturity	December 2027
Creditor Of Guarantee	Enel Finance International N.V.
Debtor, Company	Enel Green Power Chile S.A.
Relationship	Subsidiary
Type of Guarantee	Guarantor
Outstanding balance	$ 458,115,841	$ 484,341,824

Headcount - Summary of Number o

Headcount - Summary of Number of Employees (Detail) - employee	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	2,219	2,133
Average	2,202	2,104
Managers and Key Executives [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	55	56
Average	54	58
Professionals and Technicians [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	2,030	1,921
Average	2,010	1,887
Staff and Others [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	134	156
Average	138	159
Chile [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	2,197	2,110
Chile [Member] | Managers and Key Executives [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	55	56
Chile [Member] | Professionals and Technicians [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	2,025	1,915
Chile [Member] | Staff and Others [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	117	139
Argentina [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	22	23
Argentina [Member] | Professionals and Technicians [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	5	6
Argentina [Member] | Staff and Others [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	17	17

Sanctions - Additional Informat

Sanctions - Additional Information (Detail) $ in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Aug. 25, 2020CLP ($)	Jul. 25, 2020CLF ( )	Jul. 14, 2020CLF ( )	Jul. 14, 2020CLP ($)	May 23, 2016CLF ( )	May 23, 2016CLP ($)
Disclosure Of Sanctions [Line Items]
Provision amount		$ 10,882,854
Enel Generación Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Provision amount		1,839,490
Bio Bio Health Secretary [Member] | Waste Disposal Regulations Liability [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed	500	25,515
Superintendence of Electricity and Fuels [Member] | Improper Maintenance of Facilities Liability [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed							2,000	$ 102,058
Superintendence of Electricity and Fuels [Member] | Duty to Maintain Electric Service [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed					10,000	$ 510,290
Superintendence of Electricity and Fuels [Member] | Breach of Technical Quality Standards for Distribution Services [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed			$ 1,122,638	22,000
Tarapaca’s Health Secretary’s [Member] | Alleged Breach in Use of Lime [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed	500	25,515
Coquimbo Regional Health Ministry [Member] | Alleged Violation of Keeping Waste in an Unauthorized Area [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed	500	25,515
Valparaíso Regional Health Ministry [Member] | Alleged Breaches of Obligations and Regulations Liability [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed	500	25,515
Regional Health Ministry of the Metropolitan Region [Member] | Alleged Violation of Health Regulations [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Sanctions [Line Items]
Fine or penalties imposed	50	$ 2,551

Environment - Summary of Enviro

Environment - Summary of Environmental Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Environmental Expenses [Line Items]
Disbursements Amount	$ 14,046,722	$ 16,132,535	$ 20,968,708
Capitalized amounts	5,768,806	6,245,845	11,304,025
Expenses amount	8,313,182	9,886,690	9,664,683
Future disbursement amount	3,966,677	3,078,356	3,255,494
Total Disbursements	17,967,209	19,210,891	24,224,202
Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		15,902,027
Pehuenche [Member] | Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount	13,128	3,165
Expenses amount	13,128	3,165
Future disbursement amount	19,298
Total Disbursements	32,426	3,165
Pehuenche [Member] | Waste Management [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		3,165
Pehuenche [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount	3,528	1,988
Expenses amount	3,528	1,988
Future disbursement amount	5,334
Total Disbursements	8,862	1,988
Pehuenche [Member] | Environmental Sanitation [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		1,988
Pehuenche [Member] | Materials Environment [Member]
Environmental Expenses [Line Items]
Disbursements Amount	4,993
Expenses amount	4,993
Future disbursement amount	24,720
Total Disbursements	29,713
Pehuenche [Member] | Materials Environment [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		9,061
Pehuenche [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount	4,235
Expenses amount	4,235
Future disbursement amount	6,180
Total Disbursements	10,415
Pehuenche [Member] | Curillinque Central [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		9,061
Expenses amount		9,061
Total Disbursements		9,061
Pehuenche [Member] | Curillinque Central [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		882
Expenses amount		882
Total Disbursements		882
Pehuenche [Member] | Studies, Monitoring and Laboratory Analysis [Member]
Environmental Expenses [Line Items]
Disbursements Amount			62,560
Expenses amount			62,560
Total Disbursements			62,560
Pehuenche [Member] | Loma Alta Central [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		882
Expenses amount		882
Total Disbursements		882
Pehuenche [Member] | Environmental costs in hydroelectric plants [Member]
Environmental Expenses [Line Items]
Disbursements Amount			48,574
Capitalized amounts			48,574
Total Disbursements			48,574
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Networks [Member]
Environmental Expenses [Line Items]
Disbursements Amount	305,701	2,600	134,394
Expenses amount	305,701	2,600	134,394
Future disbursement amount			19,654
Total Disbursements	305,701	2,600	154,048
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Networks [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		2,600
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Networks One [Member]
Environmental Expenses [Line Items]
Disbursements Amount	303,873	67,291	5,790,042
Capitalized amounts			2,472,768
Expenses amount	303,873	67,291	3,317,274
Future disbursement amount			502,599
Total Disbursements	303,873	67,291	6,292,641
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Networks One [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		67,291
Enel Distribucion Chile S.A. [Member] | Vegetation Control in Networks Mt/Bt [Member]
Environmental Expenses [Line Items]
Disbursements Amount	3,296,066	3,507,502	19,416
Capitalized amounts			19,416
Expenses amount	3,296,066	3,507,502
Future disbursement amount			373,059
Total Disbursements	3,296,066	3,507,502	392,475
Enel Distribucion Chile S.A. [Member] | Vegetation Control in Networks Mt/Bt [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		3,507,502
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Networks Mt/Bt One [Member]
Environmental Expenses [Line Items]
Disbursements Amount		64,737
Expenses amount		64,737
Total Disbursements		64,737
Enel Distribucion Chile S.A. [Member] | Improvements in the Network M T/Bt [Member]
Environmental Expenses [Line Items]
Disbursements Amount	91,353		158,086
Capitalized amounts	91,353		158,086
Future disbursement amount			18,056
Total Disbursements	91,353		176,142
Enel Distribucion Chile S.A. [Member] | Improvements in the Network M T/Bt [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		170,077
Enel Distribucion Chile S.A. [Member] | Improvements in the Network M T/BT [Member]
Environmental Expenses [Line Items]
Disbursements Amount		170,077
Capitalized amounts		170,077
Total Disbursements		170,077
Enel Distribucion Chile S.A. [Member] | Replace TRIFAS Transformers MEJ Quality BT [Member]
Environmental Expenses [Line Items]
Disbursements Amount	3,649,294	1,168,343	1,288,155
Capitalized amounts	3,649,294	1,168,343	1,288,155
Future disbursement amount			1,353,909
Total Disbursements	3,649,294	1,168,343	2,642,064
Enel Distribucion Chile S.A. [Member] | Replace TRIFAS Transformers MEJ Quality BT [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		1,168,343
Enel Distribucion Chile S.A. [Member] | Environmental management in Ssee [Member]
Environmental Expenses [Line Items]
Disbursements Amount	340,704	19,706	15,383
Expenses amount	340,704	19,706	15,383
Future disbursement amount			36,633
Total Disbursements	340,704	19,706	52,016
Enel Distribucion Chile S.A. [Member] | Environmental management in Ssee [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		64,737
Enel Distribucion Chile S.A. [Member] | Management Respel [Member]
Environmental Expenses [Line Items]
Disbursements Amount	19,122	103,847	1,780
Expenses amount	19,122	103,847	1,780
Total Disbursements	19,122	103,847	1,780
Enel Distribucion Chile S.A. [Member] | Management Respel [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		103,847
Enel Distribucion Chile S.A. [Member] | SEC Standardization Project [Member]
Environmental Expenses [Line Items]
Disbursements Amount	1,774,155
Capitalized amounts	1,774,155
Total Disbursements	1,774,155
Enel Distribucion Chile S.A. [Member] | Oil Analysis At Power [Member]
Environmental Expenses [Line Items]
Disbursements Amount	32,096
Expenses amount	32,096
Total Disbursements	32,096
Enel Distribucion Chile S.A. [Member] | Asbestos Removal from Underground Cables [Member]
Environmental Expenses [Line Items]
Disbursements Amount			265,577
Capitalized amounts			146,300
Expenses amount			119,277
Future disbursement amount			118,337
Total Disbursements			383,914
Enel Distribucion Chile S.A. [Member] | Change of Trade X Caple Network [Member]
Environmental Expenses [Line Items]
Disbursements Amount		1,476,780	851,792
Capitalized amounts		1,476,780	851,792
Future disbursement amount			530,712
Total Disbursements		1,476,780	1,382,504
Enel Distribucion Chile S.A. [Member] | Environmental Permits [Member]
Environmental Expenses [Line Items]
Disbursements Amount			1,767
Capitalized amounts			1,767
Future disbursement amount			5,203
Total Disbursements			6,970
Enel Distribucion Chile S.A. [Member] | Environmental management in Ssee One [Member]
Environmental Expenses [Line Items]
Disbursements Amount		21,719	46,339
Expenses amount		21,719	46,339
Future disbursement amount			568
Total Disbursements		21,719	46,907
Enel Distribucion Chile S.A. [Member] | Environmental Management Three [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,337
Expenses amount		2,337
Total Disbursements		2,337
Enel Distribucion Chile S.A. [Member] | Replacement TD DAE Concentrica X TD. TRIF. Red Caple [Member]
Environmental Expenses [Line Items]
Disbursements Amount		492,260	712,455
Capitalized amounts		492,260	712,455
Future disbursement amount			295,961
Total Disbursements		492,260	1,008,416
Enel Distribucion Chile S.A. [Member] | Environmental Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount	1,374		5,831
Expenses amount	1,374		5,831
Future disbursement amount			803
Total Disbursements	1,374		6,634
Enel Distribucion Chile S.A. [Member] | Environmental Management [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		2,337
Enel Generación Chile S.A. [Member] | Environmental monitoring [Member]
Environmental Expenses [Line Items]
Disbursements Amount		576,519	797,543
Expenses amount		576,519	797,543
Total Disbursements		576,519	797,543
Enel Generación Chile S.A. [Member] | Standardization Cems [Member]
Environmental Expenses [Line Items]
Disbursements Amount		207,966	645,302
Capitalized amounts		207,966	645,302
Total Disbursements		207,966	645,302
Enel Generación Chile S.A. [Member] | Hydraulic Centrals [Member]
Environmental Expenses [Line Items]
Disbursements Amount			11,567
Expenses amount			11,567
Total Disbursements			11,567
Enel Generación Chile S.A. [Member] | Hydraulic Power Stations [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,315
Expenses amount		2,315
Total Disbursements		2,315
Enel Generación Chile S.A. [Member] | C.H. Ralco [Member]
Environmental Expenses [Line Items]
Disbursements Amount			4,542,216
Capitalized amounts			4,542,216
Total Disbursements			4,542,216
Enel Generación Chile S.A. [Member] | Central Quintero [Member]
Environmental Expenses [Line Items]
Disbursements Amount		458,001	417,194
Capitalized amounts		110,923	417,194
Expenses amount		347,078
Future disbursement amount		37,983
Total Disbursements		495,984	417,194
Enel Generación Chile S.A. [Member] | Environmental Expenses CC. CC [Member]
Environmental Expenses [Line Items]
Disbursements Amount	595,987	1,452,158
Capitalized amounts	95,976	855,667
Expenses amount	500,011	596,491
Future disbursement amount	599,144	855,667
Total Disbursements	1,195,131	2,307,825
Enel Generación Chile S.A. [Member] | Environmental Expenses CC. CC [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		2,307,825
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.IT [Member]
Environmental Expenses [Line Items]
Disbursements Amount	2,048,635	5,387,657	2,102,056
Capitalized amounts	158,028	1,763,829
Expenses amount	1,890,607	3,623,828	2,102,056
Future disbursement amount	1,520,333	1,763,829
Total Disbursements	3,568,968	7,151,486	2,102,056
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.IT [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		7,151,486
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.IT One [Member]
Environmental Expenses [Line Items]
Disbursements Amount			2,867,523
Expenses amount			2,867,523
Total Disbursements			2,867,523
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.HH [Member]
Environmental Expenses [Line Items]
Disbursements Amount	263,737	339,103	183,156
Expenses amount	263,737	339,103	183,156
Future disbursement amount		420,877
Total Disbursements	263,737	759,980	$ 183,156
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.HH [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		759,980
Enel Green Power del Sur Spa. | Carrera Pinto Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		4,432
Expenses amount		4,432
Total Disbursements		4,432
Enel Green Power del Sur Spa. | Carrera Pinto Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		6,466
Expenses amount		6,466
Total Disbursements		6,466
Enel Green Power del Sur Spa. | Carrera Pinto Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		4,436
Expenses amount		4,436
Total Disbursements		4,436
Enel Green Power del Sur Spa. | Finis Terrae Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		10,954
Expenses amount		10,954
Total Disbursements		10,954
Enel Green Power del Sur Spa. | Finis Terrae Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		7,674
Expenses amount		7,674
Total Disbursements		7,674
Enel Green Power del Sur Spa. | Finis Terrae Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,154
Expenses amount		2,154
Total Disbursements		2,154
Enel Green Power del Sur Spa. | La Silla Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,902
Expenses amount		2,902
Total Disbursements		2,902
Enel Green Power del Sur Spa. | Los Buenos Aires Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		1,509
Expenses amount		1,509
Total Disbursements		1,509
Enel Green Power del Sur Spa. | Los Buenos Aires Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		20,613
Expenses amount		20,613
Total Disbursements		20,613
Enel Green Power del Sur Spa. | Los Buenos Aires Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		3,989
Expenses amount		3,989
Total Disbursements		3,989
Enel Green Power del Sur Spa. | Los Buenos Aires Waste Water Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		882
Expenses amount		882
Total Disbursements		882
Enel Green Power del Sur Spa. | Los Buenos Aires Environment Materials [Member]
Environmental Expenses [Line Items]
Disbursements Amount		5,589
Expenses amount		5,589
Total Disbursements		5,589
Enel Green Power del Sur Spa. | Pampa Norte Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		5,098
Expenses amount		5,098
Total Disbursements		5,098
Enel Green Power del Sur Spa. | Pampa Norte Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		6,618
Expenses amount		6,618
Total Disbursements		6,618
Enel Green Power del Sur Spa. | Pampa Norte Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		3,459
Expenses amount		3,459
Total Disbursements		3,459
Enel Green Power del Sur Spa. | Renaico Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,281
Expenses amount		2,281
Total Disbursements		2,281
Enel Green Power del Sur Spa. | Renaico Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		83,820
Expenses amount		83,820
Total Disbursements		83,820
Enel Green Power del Sur Spa. | Renaico Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		5,226
Expenses amount		5,226
Total Disbursements		5,226
Enel Green Power del Sur Spa. | Renaico Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		982
Expenses amount		982
Total Disbursements		982
Enel Green Power del Sur Spa. | Renaico Environment Materials [Member]
Environmental Expenses [Line Items]
Disbursements Amount		4,822
Expenses amount		4,822
Total Disbursements		4,822
Enel Green Power del Sur Spa. | Renaico Outsourced Services [Member]
Environmental Expenses [Line Items]
Disbursements Amount		53,970
Expenses amount		53,970
Total Disbursements		53,970
Enel Green Power del Sur Spa. | Sierra Gorda Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		13,999
Expenses amount		13,999
Total Disbursements		13,999
Enel Green Power del Sur Spa. | Sierra Gorda Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		42,959
Expenses amount		42,959
Total Disbursements		42,959
Enel Green Power del Sur Spa. | Sierra Gorda Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		3,300
Expenses amount		3,300
Total Disbursements		3,300
Enel Green Power del Sur Spa. | Sierra Gorda Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		127
Expenses amount		127
Total Disbursements		127
Enel Green Power Chile S.A. [Member] | Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount	84,113
Expenses amount	84,113
Future disbursement amount	148,447
Total Disbursements	232,560
Enel Green Power Chile S.A. [Member] | Waste Management [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		33,841
Enel Green Power Chile S.A. [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount	46,957
Expenses amount	46,957
Future disbursement amount	104,448
Total Disbursements	151,405
Enel Green Power Chile S.A. [Member] | Environmental Sanitation [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		36,175
Enel Green Power Chile S.A. [Member] | Water Analysis [Member]
Environmental Expenses [Line Items]
Expenses amount	35,266
Future disbursement amount	44,588
Enel Green Power Chile S.A. [Member] | Rent Or Vehicle Expenses [Member]
Environmental Expenses [Line Items]
Disbursements Amount	51,716
Expenses amount	51,716
Future disbursement amount	66,741
Total Disbursements	118,457
Enel Green Power Chile S.A. [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount	189,321
Expenses amount	189,321
Future disbursement amount	355,550
Total Disbursements	544,871
Enel Green Power Chile S.A. [Member] | Campaigns and Studies [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		147,392
Enel Green Power Chile S.A. [Member] | Technical Counterpart Environmental Studies [Member]
Environmental Expenses [Line Items]
Future disbursement amount	5,287
Total Disbursements	5,287
Enel Green Power Chile S.A. [Member] | Environmental Materials [Member]
Environmental Expenses [Line Items]
Disbursements Amount	32,032
Expenses amount	32,032
Future disbursement amount	40,578
Total Disbursements	72,610
Enel Green Power Chile S.A. [Member] | Environmental Materials [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		4,822
Enel Green Power Chile S.A. [Member] | Sewage Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount	8,066
Expenses amount	8,066
Future disbursement amount	31,591
Total Disbursements	39,657
Enel Green Power Chile S.A. [Member] | Sewage Treatment Plant [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		17,629
Enel Green Power Chile S.A. [Member] | Outsourced Services [Member]
Environmental Expenses [Line Items]
Disbursements Amount	222,291
Expenses amount	222,291
Future disbursement amount	297,167
Total Disbursements	519,458
Enel Green Power Chile S.A. [Member] | Outsourced Services [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		53,970
Enel Green Power Chile S.A. [Member] | Travel Environment [Member]
Environmental Expenses [Line Items]
Disbursements Amount	56,820
Expenses amount	56,820
Future disbursement amount	85,150
Total Disbursements	140,368
Geotermica del Norte SA [Member] | Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount	21,992
Expenses amount	21,992
Future disbursement amount	32,918
Total Disbursements	54,910
Geotermica del Norte SA [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount	6,500
Expenses amount	6,500
Future disbursement amount	14,319
Total Disbursements	20,819
Geotermica del Norte SA [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount	313,280
Expenses amount	313,280
Future disbursement amount	339,170
Total Disbursements	652,450
Geotermica del Norte SA [Member] | Environmental Materials [Member]
Environmental Expenses [Line Items]
Disbursements Amount	91
Expenses amount	91
Future disbursement amount	3,559
Total Disbursements	3,650
Geotermica del Norte SA [Member] | Sewage Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount	4,816
Expenses amount	4,816
Future disbursement amount	1,324
Total Disbursements	6,140
Parque Eolico Talinay Oriente S.A. [Member] | Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount	13,064
Expenses amount	13,064
Future disbursement amount	18,580
Total Disbursements	31,644
Parque Eolico Talinay Oriente S.A. [Member] | Waste Management [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		11,865
Parque Eolico Talinay Oriente S.A. [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount	6,939
Expenses amount	6,939
Future disbursement amount	4,109
Total Disbursements	11,048
Parque Eolico Talinay Oriente S.A. [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount	76,595
Expenses amount	76,595
Total Disbursements	76,595
Parque Eolico Talinay Oriente S.A. [Member] | Campaigns and Studies [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		63,666
Parque Eolico Talinay Oriente S.A. [Member] | Sewage Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount	2,087
Expenses amount	2,087
Total Disbursements	2,087
Parque Eolico Talinay Oriente S.A. [Member] | Sewage Treatment Plant [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		1,738
Parque Eolico Talinay Oriente S.A. [Member] | Taltal Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		44,656
Expenses amount		44,656
Total Disbursements		44,656
Parque Eolico Talinay Oriente S.A. [Member] | Taltal Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,476
Expenses amount		2,476
Total Disbursements		2,476
Parque Eolico Talinay Oriente S.A. [Member] | Taltal Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,515
Expenses amount		2,515
Total Disbursements		2,515
Parque Eolico Talinay Oriente S.A. [Member] | Taltal Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		10,745
Expenses amount		10,745
Total Disbursements		10,745
Parque Eolico Tal Tal SpA | Valle de los Vientos Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		11,546
Expenses amount		11,546
Total Disbursements		11,546
Parque Eolico Tal Tal SpA | Valle de los Vientos Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		20,216
Expenses amount		20,216
Total Disbursements		20,216
Parque Eolico Tal Tal SpA | Valle de los Vientos Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,471
Expenses amount		2,471
Total Disbursements		2,471
Parque Eolico Valle de Los Vientos SpA [Member] | Talinay Oriente Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		63,666
Expenses amount		63,666
Total Disbursements		63,666
Parque Eolico Valle de Los Vientos SpA [Member] | Talinay Oriente Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		9,419
Expenses amount		9,419
Total Disbursements		9,419
Parque Eolico Valle de Los Vientos SpA [Member] | Talinay Oriente Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		1,738
Expenses amount		1,738
Total Disbursements		1,738
Parque Eolico Valle de Los Vientos SpA [Member] | Talinay Oriente Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		11,865
Expenses amount		11,865
Total Disbursements		11,865
Empresa Electrica Panguipulli S.A. | Chanares Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		1,613
Expenses amount		1,613
Total Disbursements		1,613
Empresa Electrica Panguipulli S.A. | Chanares Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		7,981
Expenses amount		7,981
Total Disbursements		7,981
Empresa Electrica Panguipulli S.A. | Chanares Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		5,262
Expenses amount		5,262
Total Disbursements		5,262
Empresa Electrica Panguipulli S.A. | Chanares Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		5,591
Expenses amount		5,591
Total Disbursements		5,591
Empresa Electrica Panguipulli S.A. | Lalackama Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		1,678
Expenses amount		1,678
Total Disbursements		1,678
Empresa Electrica Panguipulli S.A. | Lalackama Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		7,091
Expenses amount		7,091
Total Disbursements		7,091
Empresa Electrica Panguipulli S.A. | Lalackama Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		3,273
Expenses amount		3,273
Total Disbursements		3,273
Empresa Electrica Panguipulli S.A. | Pilmaiquen Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		1,450
Expenses amount		1,450
Total Disbursements		1,450
Empresa Electrica Panguipulli S.A. | Pilmaiquen Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		6,822
Expenses amount		6,822
Total Disbursements		6,822
Empresa Electrica Panguipulli S.A. | Pullinque Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		785
Expenses amount		785
Total Disbursements		785
Empresa Electrica Panguipulli S.A. | Pullinque Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		2,627
Expenses amount		2,627
Total Disbursements		2,627
Empresa Electrica Panguipulli S.A. | Pullinque Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		4,129
Expenses amount		4,129
Total Disbursements		4,129
Empresa Electrica Panguipulli S.A. | Pullinque Environment Materials [Member]
Environmental Expenses [Line Items]
Disbursements Amount		394
Expenses amount		394
Total Disbursements		394
Empresa Electrica Panguipulli S.A. | Talinay Poniente Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount		46,026
Expenses amount		46,026
Total Disbursements		46,026
Almeyda Solar Spa [Member] | Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount	39,521
Almeyda Solar Spa [Member] | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount	33,992
Expenses amount	33,992
Future disbursement amount	36,542
Total Disbursements	70,534
Almeyda Solar Spa [Member] | Environmental Sanitation [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		33,467
Almeyda Solar Spa [Member] | Water Analysis [Member]
Environmental Expenses [Line Items]
Future disbursement amount	24,435
Total Disbursements	24,435
Almeyda Solar Spa [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Disbursements Amount	63,736
Expenses amount	63,736
Future disbursement amount	64,160
Total Disbursements	127,896
Almeyda Solar Spa [Member] | Campaigns and Studies [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		121,506
Almeyda Solar Spa [Member] | Environmental Materials [Member]
Environmental Expenses [Line Items]
Disbursements Amount	16,663
Expenses amount	16,663
Future disbursement amount	28,702
Total Disbursements	45,365
Almeyda Solar Spa [Member] | Environmental Materials [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		394
Almeyda Solar Spa [Member] | Sewage Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount	8,149
Expenses amount	8,149
Future disbursement amount	12,795
Total Disbursements	20,944
Almeyda Solar Spa [Member] | Sewage Treatment Plant [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		17,419
Almeyda Solar Spa [Member] | Finis Terrae Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Expenses amount	39,521
Future disbursement amount	31,508
Total Disbursements	$ 71,029
Almeyda Solar Spa [Member] | Finis Terrae Wastewater Treatment Plant [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		37,904
Almeyda Solar Spa [Member] | Diego de Almagro Waste Management [Member]
Environmental Expenses [Line Items]
Disbursements Amount		10,087
Expenses amount		10,087
Total Disbursements		10,087
Almeyda Solar Spa [Member] | Diego de Almagro Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Disbursements Amount		5,216
Expenses amount		5,216
Total Disbursements		5,216
Almeyda Solar Spa [Member] | Diego de Almagro Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Disbursements Amount		6,040
Expenses amount		6,040
Total Disbursements		$ 6,040

Financial Information of Subs_2

Financial Information of Subsidiaries - Summary of Financial Information on Subsidiaries, Summarized (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Total Current Assets	$ 1,026,401,196	$ 1,018,212,660
Total Non Current Assets	6,878,070,388	6,839,775,504
TOTAL ASSETS	7,904,471,584	7,857,988,164
Total Current Liabilities	1,045,480,165	1,041,299,852
Non-current Liabilities	3,264,716,920	3,069,404,660
Equity	3,594,274,499	3,747,283,652	$ 3,674,163,781	$ 3,786,961,657
TOTAL LIABILITIES AND EQUITY	7,904,471,584	7,857,988,164
Revenues	2,548,384,317	2,624,576,323	2,410,360,459
Raw materials and consumables used	(1,374,445,639)	(1,421,205,251)	(1,292,177,116)
Contribution Margin	1,210,956,558	1,349,629,109	1,164,984,310
Income before Taxes	(133,691,942)	377,321,122	566,330,276
Income tax expense	81,305,107	(61,227,904)	(153,482,519)
(LOSS) PROFIT	(52,386,835)	316,093,218	412,847,757
Other Comprehensive Income	119,355,961	(34,855,794)	(53,736,400)
TOTAL COMPREHENSIVE INCOME	$ 66,969,126	$ 281,237,424	$ 359,111,357
Grupo Enel Distribucion Chile S A
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Consolidated	Consolidated	Consolidated
Total Current Assets	$ 582,076,850	$ 289,393,933	$ 296,453,470
Total Non Current Assets	1,069,130,548	1,175,550,962	982,926,699
TOTAL ASSETS	1,651,207,398	1,464,944,895	1,279,380,169
Total Current Liabilities	394,984,535	317,248,208	450,182,594
Non-current Liabilities	355,577,789	301,769,861	63,065,351
Equity	900,645,074	845,926,826	766,132,224
TOTAL LIABILITIES AND EQUITY	1,651,207,398	1,464,944,895	1,279,380,169
Revenues	1,382,068,218	1,412,871,737	1,263,224,070
Raw materials and consumables used	(1,116,324,483)	(1,114,936,281)	(972,499,916)
Contribution Margin	(265,743,735)	(297,935,456)	(290,724,154)
Gross Operating Income	158,471,761	201,152,462	200,614,083
Operating Income	99,889,095	152,293,464	159,259,319
Financial Results	5,929,058	5,232,127	6,088,801
Income before Taxes	105,828,440	157,525,602	165,348,120
Income tax expense	(23,421,217)	(38,748,555)	(42,967,123)
(LOSS) PROFIT	82,407,223	118,777,047	122,380,997
Other Comprehensive Income	(3,032,588)	(5,268,320)	(600,422)
TOTAL COMPREHENSIVE INCOME	$ 79,374,635	$ 113,508,727	$ 121,780,574
Enel Generación Chile S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 450,585,522	$ 583,721,624	$ 548,220,314
Total Non Current Assets	2,568,790,911	2,934,658,635	2,725,004,288
TOTAL ASSETS	3,019,376,433	3,518,380,259	3,273,224,602
Total Current Liabilities	346,738,652	449,869,095	569,928,285
Non-current Liabilities	962,018,025	1,081,712,205	938,139,970
Equity	1,710,619,756	1,986,798,959	1,765,156,347
TOTAL LIABILITIES AND EQUITY	3,019,376,433	3,518,380,259	3,273,224,602
Revenues	1,454,983,823	1,566,647,603	1,454,348,386
Raw materials and consumables used	(906,062,618)	(1,015,974,072)	(1,051,644,602)
Contribution Margin	(548,921,205)	(550,673,531)	(402,703,785)
Gross Operating Income	421,458,046	438,227,197	300,148,133
Operating Income	(355,272,815)	273,796,017	226,154,177
Financial Results	(47,019,373)	(61,735,905)	(49,980,539)
Income before Taxes	(311,920,879)	378,925,840	378,187,852
Income tax expense	154,534,331	(47,979,392)	(42,255,124)
(LOSS) PROFIT	(157,386,549)	330,946,448	335,932,728
Other Comprehensive Income	97,628,933	(51,590,095)	(101,720,204)
TOTAL COMPREHENSIVE INCOME	$ (59,757,615)	$ 279,356,353	$ 234,212,523
Enel Distribucion Chile S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 577,456,051	$ 281,307,184	$ 288,632,068
Total Non Current Assets	1,060,265,626	1,166,614,368	975,441,251
TOTAL ASSETS	1,637,721,677	1,447,921,552	1,264,073,319
Total Current Liabilities	377,127,464	293,190,807	424,550,547
Non-current Liabilities	355,408,175	301,606,886	62,721,352
Equity	905,186,038	853,123,859	776,801,421
TOTAL LIABILITIES AND EQUITY	1,637,721,677	1,447,921,552	1,264,073,320
Revenues	1,378,024,639	1,409,434,510	1,259,689,827
Raw materials and consumables used	(1,115,217,690)	(1,113,958,943)	(971,366,398)
Contribution Margin	(262,806,949)	(295,475,567)	(288,323,429)
Gross Operating Income	156,516,439	200,130,596	199,676,810
Operating Income	99,162,164	151,879,931	159,625,438
Financial Results	5,643,080	4,770,147	5,418,883
Income before Taxes	104,815,531	156,650,077	165,044,321
Income tax expense	(23,518,908)	(38,583,882)	(43,812,619)
(LOSS) PROFIT	81,296,623	118,066,195	121,231,702
Other Comprehensive Income	(3,031,870)	(5,258,044)	(598,985)
TOTAL COMPREHENSIVE INCOME	$ 78,264,753	$ 112,808,151	$ 120,632,717
Empresa Electrica Pehuenche S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 57,648,247	$ 40,913,391	$ 51,279,432
Total Non Current Assets	165,957,367	172,823,608	179,693,183
TOTAL ASSETS	223,605,614	213,736,999	230,972,615
Total Current Liabilities	43,582,095	32,304,951	44,459,384
Non-current Liabilities	42,466,077	44,330,262	46,238,192
Equity	137,557,442	137,101,786	140,275,039
TOTAL LIABILITIES AND EQUITY	223,605,614	213,736,999	230,972,615
Revenues	162,555,069	147,472,130	162,768,188
Raw materials and consumables used	(29,660,883)	(19,725,956)	(21,539,174)
Contribution Margin	(132,894,186)	(127,746,174)	(141,229,015)
Gross Operating Income	126,117,737	121,631,813	135,558,558
Operating Income	118,664,949	114,117,571	128,068,159
Financial Results	537,780	2,230,250	224,543
Income before Taxes	119,202,729	116,442,545	128,348,399
Income tax expense	(32,100,661)	(31,554,368)	(34,669,191)
(LOSS) PROFIT	87,102,068	84,888,177	93,679,208
TOTAL COMPREHENSIVE INCOME	$ 87,102,068	$ 84,888,177	$ 93,679,208
Enel Green Power Chile Ltda. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate
Total Current Assets		$ 93,176,241
Total Non Current Assets		728,572,966
TOTAL ASSETS		821,749,207
Total Current Liabilities		148,584,958
Non-current Liabilities		26,709,820
Equity		646,454,429
TOTAL LIABILITIES AND EQUITY		821,749,207
Revenues	$ 2,643,361	17,470,331
Raw materials and consumables used		(5,891)
Contribution Margin	(2,643,361)	(17,464,440)
Gross Operating Income	656,694	2,941,543
Operating Income	443,065	1,770,750
Financial Results	(728,828)	(3,819,658)
Income before Taxes	(285,763)	4,271,982
Income tax expense	(27,623)	789,773
(LOSS) PROFIT	(313,386)	5,061,755
Other Comprehensive Income	32,849,632	47,305,179
TOTAL COMPREHENSIVE INCOME	$ 32,536,246	$ 52,366,934
Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets		$ 11,883,401	$ 16,052,462
Total Non Current Assets		268,737,935	255,481,676
TOTAL ASSETS		280,621,336	271,534,138
Total Current Liabilities		35,237,664	59,681,465
Non-current Liabilities		152,717,912	131,671,924
Equity		92,665,760	80,180,749
TOTAL LIABILITIES AND EQUITY		280,621,336	271,534,138
Revenues	$ 36,961,169	65,392,897	45,097,744
Raw materials and consumables used	(1,553,242)	(10,089,283)	(5,320,421)
Contribution Margin	(35,407,927)	(55,303,614)	(39,777,324)
Gross Operating Income	30,644,413	45,295,840	32,476,777
Operating Income	17,824,133	25,634,374	18,680,884
Financial Results	(2,975,352)	(7,544,701)	(1,954,238)
Income before Taxes	14,848,781	18,091,741	16,726,646
Income tax expense	(1,094,018)	(3,984,287)	(2,647,884)
(LOSS) PROFIT	13,754,763	14,107,454	14,078,762
Other Comprehensive Income	3,300,577	4,145,983	(3,643,974)
TOTAL COMPREHENSIVE INCOME	$ 17,055,341	$ 18,253,437	$ 10,434,788
Geotérmica del Norte [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 6,236,103	$ 21,392,710	$ 21,765,295
Total Non Current Assets	400,007,251	389,334,650	347,871,452
TOTAL ASSETS	406,243,354	410,727,360	369,636,747
Total Current Liabilities	47,175,660	34,868,730	20,910,840
Non-current Liabilities	322,246	316,179	293,675
Equity	358,745,448	375,542,451	348,432,232
TOTAL LIABILITIES AND EQUITY	406,243,354	410,727,360	369,636,747
Revenues	29,621,783	25,736,468	17,023,794
Raw materials and consumables used	(1,987,867)	(4,666,032)	(2,109,769)
Contribution Margin	(27,633,916)	(21,070,436)	(14,914,025)
Gross Operating Income	22,284,312	16,240,808	13,168,978
Operating Income	4,542,775	985,760	2,001,882
Financial Results	(4,106)	(2,431,778)	(3,676,151)
Income before Taxes	4,538,668	(1,446,018)	(1,674,269)
Income tax expense	(350,271)	(268,161)	454,355
(LOSS) PROFIT	4,188,397	(1,714,179)	(1,219,914)
Other Comprehensive Income	(20,985,401)	28,824,398	45,243,420
TOTAL COMPREHENSIVE INCOME	$ (16,797,004)	$ 27,110,219	$ 44,023,506
Parque Eolico Talinay Oriente S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 80,718,677	$ 75,985,899	$ 63,831,605
Total Non Current Assets	81,224,769	91,924,981	87,493,829
TOTAL ASSETS	161,943,446	167,910,880	151,325,434
Total Current Liabilities	3,322,615	3,479,000	6,173,259
Non-current Liabilities	24,923,743	25,290,284	18,876,242
Equity	133,697,088	139,141,596	126,275,934
TOTAL LIABILITIES AND EQUITY	161,943,446	167,910,880	151,325,435
Revenues	13,327,199	12,662,715	10,058,036
Raw materials and consumables used	(215,507)	(891,215)	(2,434,415)
Contribution Margin	(13,111,692)	(11,771,500)	(7,623,621)
Gross Operating Income	10,119,202	8,846,598	5,310,400
Operating Income	2,877,967	1,956,884	1,014,857
Financial Results	569,821	1,076,843	1,312,902
Income before Taxes	3,447,787	3,033,727	2,327,759
Income tax expense	(1,028,866)	(812,645)	(613,097)
(LOSS) PROFIT	2,418,922	2,221,082	1,714,661
Other Comprehensive Income	(7,863,429)	10,644,581	16,552,523
TOTAL COMPREHENSIVE INCOME	$ (5,444,508)	$ 12,865,663	$ 18,267,184
Enel Green Power Del Sur S p A [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 48,915,258	$ 190,106,543	$ 162,710,963
Total Non Current Assets	1,536,057,410	732,488,168	669,741,595
TOTAL ASSETS	1,584,972,668	922,594,711	832,452,558
Total Current Liabilities	337,590,586	54,033,958	113,123,832
Non-current Liabilities	542,949,053	534,433,995	125,240,940
Equity	704,433,029	334,126,758	594,087,786
TOTAL LIABILITIES AND EQUITY	1,584,972,668	922,594,711	832,452,558
Revenues	176,960,820	144,036,603	12,831,131
Raw materials and consumables used	(30,028,125)	(25,778,573)	(15,655)
Contribution Margin	(146,932,695)	(118,258,030)	(12,815,476)
Gross Operating Income	119,153,489	99,202,697	2,521,606
Operating Income	72,729,793	66,657,147	1,702,927
Financial Results	(24,394,047)	(23,438,689)	(5,337,680)
Income before Taxes	48,335,747	43,218,457	71,323,446
Income tax expense	(14,300,689)	(9,496,203)	1,601,922
(LOSS) PROFIT	34,035,057	33,722,254	72,925,368
Other Comprehensive Income	(61,492,284)	25,195,173	71,701,018
TOTAL COMPREHENSIVE INCOME	$ (27,457,227)	$ 58,917,427	$ 144,626,386
Almeyda Solar Spa [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate
Total Current Assets	$ 16,915,219
Total Non Current Assets	461,620,519
TOTAL ASSETS	478,535,738
Total Current Liabilities	204,561,234
Non-current Liabilities	72,286,638
Equity	201,687,866
TOTAL LIABILITIES AND EQUITY	478,535,738
Revenues	52,290,734
Raw materials and consumables used	(2,463,593)
Contribution Margin	(49,827,141)
Gross Operating Income	41,553,826
Operating Income	24,434,638
Financial Results	(7,386,090)
Income before Taxes	17,048,548
Income tax expense	(4,556,211)
(LOSS) PROFIT	12,492,337
Other Comprehensive Income	(21,883,149)
TOTAL COMPREHENSIVE INCOME	$ (9,390,812)
Grupo Enel Green Power [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Consolidated	Consolidated	Consolidated
Total Current Assets	$ 139,617,642	$ 371,759,514	$ 344,469,181
Total Non Current Assets	2,097,626,417	1,775,791,317	1,628,444,820
TOTAL ASSETS	2,237,244,059	2,147,550,831	1,972,914,001
Total Current Liabilities	579,459,760	377,911,553	334,639,971
Non-current Liabilities	644,053,803	773,916,901	768,719,376
Equity	1,013,730,496	995,722,377	869,554,654
TOTAL LIABILITIES AND EQUITY	2,237,244,059	2,147,550,831	1,972,914,001
Revenues	297,348,087	273,239,617	183,008,879
Raw materials and consumables used	(12,123,965)	(26,298,083)	(22,330,367)
Contribution Margin	(285,224,122)	(246,941,534)	(160,678,512)
Gross Operating Income	241,778,194	204,174,344	131,378,740
Operating Income	140,591,339	115,016,205	69,236,957
Financial Results	(33,609,299)	(42,962,825)	(38,674,306)
Income before Taxes	106,911,680	71,875,897	30,471,438
Income tax expense	(25,014,045)	(16,890,333)	(8,837,176)
(LOSS) PROFIT	81,897,635	54,985,564	21,634,262
Other Comprehensive Income	(63,316,482)	122,991,836	173,923,954
TOTAL COMPREHENSIVE INCOME	$ 18,581,153	$ 177,977,400	$ 195,558,216
Enel Green Power del Sur Spa.
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements			Separate
Total Current Assets			$ 129,849,852
Total Non Current Assets			655,431,547
TOTAL ASSETS			785,281,399
Total Current Liabilities			44,078,091
Non-current Liabilities			467,399,245
Equity			273,804,063
TOTAL LIABILITIES AND EQUITY			785,281,399
Revenues			94,473,391
Raw materials and consumables used			(21,024,045)
Contribution Margin			(73,449,347)
Gross Operating Income			60,053,812
Operating Income			37,537,228
Financial Results			(24,991,814)
Income before Taxes			12,545,413
Income tax expense			(3,455,173)
(LOSS) PROFIT			9,090,240
Other Comprehensive Income			34,497,623
TOTAL COMPREHENSIVE INCOME			$ 43,587,863
Grupo Enel Generación Chile S.A [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Consolidated	Consolidated	Consolidated
Total Current Assets	$ 465,808,355	$ 591,085,044	$ 672,467,353
Total Non Current Assets	2,625,152,610	2,996,113,733	2,996,760,726
TOTAL ASSETS	3,090,960,965	3,587,198,777	3,669,228,079
Total Current Liabilities	347,895,331	488,183,716	593,881,208
Non-current Liabilities	1,003,735,347	1,125,160,667	1,077,855,824
Equity	1,739,330,287	1,973,854,394	1,997,491,047
TOTAL LIABILITIES AND EQUITY	3,090,960,965	3,587,198,777	3,669,228,079
Revenues	1,490,102,269	1,638,374,434	1,529,364,081
Raw materials and consumables used	(811,503,735)	(834,936,802)	(818,284,050)
Contribution Margin	(678,598,534)	(803,437,632)	(711,080,031)
Gross Operating Income	547,442,737	669,742,608	582,249,559
Operating Income	(236,607,867)	280,918,860	464,383,396
Financial Results	(46,481,593)	(58,362,079)	(47,947,351)
Income before Taxes	(271,116,321)	224,783,599	423,152,001
Income tax expense	122,433,670	(23,457,536)	(104,946,765)
(LOSS) PROFIT	(148,682,651)	201,326,063	318,205,236
Other Comprehensive Income	97,437,499	(55,986,126)	(106,994,091)
TOTAL COMPREHENSIVE INCOME	$ (51,245,152)	$ 145,339,937	$ 211,211,145
Grupo Gas Atacama Chile S A [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements		Consolidated	Consolidated
Total Current Assets			$ 154,726,337
Total Non Current Assets			601,914,918
TOTAL ASSETS			756,641,255
Total Current Liabilities			61,155,091
Non-current Liabilities			94,466,222
Equity			601,019,942
TOTAL LIABILITIES AND EQUITY			756,641,255
Revenues		$ 186,194,326	271,433,789
Raw materials and consumables used		(54,061,747)	(94,746,408)
Contribution Margin		(132,132,579)	(176,687,381)
Gross Operating Income		110,016,642	146,123,452
Operating Income		(107,102,417)	109,465,013
Financial Results		1,143,576	1,808,644
Income before Taxes		(103,917,448)	115,039,230
Income tax expense		56,076,224	(27,946,019)
(LOSS) PROFIT		(47,841,224)	87,093,211
Other Comprehensive Income		(4,396,031)	(5,273,886)
TOTAL COMPREHENSIVE INCOME		$ (52,237,255)	$ 81,819,325

Subsequents events - Additional

Subsequents events - Additional Information (Details) in Thousands, $ in Millions	Apr. 01, 2021USD ($)	Feb. 08, 2021USD ($)	Jan. 29, 2021USD ($)	Jan. 31, 2021USD ($)	Dec. 31, 2021CLF ( )
Sale Transaction Agreement [Member] | Enel Generacion Chile [Member] | Chile Electricity PEC SpA [Member]
Subsequent events
Total nominal balance				$ 268
Sale and transfer of first set of balances			$ 167.1
Financial loss		$ 38.7
Sale Transaction Agreement [Member] | Enel Green Power Chile [Member] | Chile Electricity PEC SpA [Member]
Subsequent events
Total nominal balance				$ 21
Sale and transfer of first set of balances			$ 12.7
Financial loss		$ 3.1
Voluntary Retirement Program [Member]
Subsequent events
Retirement plan expense |					17,500,000
April 1, 2021, Enel Finance International N.V. Sustainable Development Goals SDGs Linked US Denominated Revolving Facility Agreement [Member] | Sustainable Development Goals Revolving Facility Agreement [Member]
Subsequent events
Committed amount	$ 290
Margin rate of interest	1.00%
April 1, 2021, Enel Finance International N.V. Sustainable Development Goals SDGs Linked US Denominated Loan Facility Agreement [Member] | Sustainable Development Goals Loan Facility Agreement [Member]
Subsequent events
Outstanding debt	$ 300
Fixed interest rate [member] | April 1, 2021, Enel Finance International N.V. Sustainable Development Goals SDGs Linked US Denominated Loan Facility Agreement [Member] | Sustainable Development Goals Loan Facility Agreement [Member]
Subsequent events
Interest rate borrowings	2.50%

Appendix 1 Details of assets _3

Appendix 1 Details of assets and Liabilities in Foreign Currency - Summary of Assets and Liabilities in Foreign Currency (Detail) $ in Thousands, in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLF ( )	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents		$ 332,036,013		$ 235,684,500
Other current financial assets		3,352,404		1,310,595
Other current non-financial assets		19,801,573		34,634,563
Trade and other receivables, current		554,886,639		511,455,330
Current accounts receivable from related parties		57,976,125		68,182,133
Inventories		23,310,029		39,672,250
Current tax assets		35,038,413		127,273,289
TOTAL CURRENT ASSETS		1,026,401,196		1,018,212,660
Other non-current financial assets		20,660,450		7,220,620
Other non-current non-financial assets		65,787,215		38,050,184
Trade and other non-current receivables		445,016,566		313,574,385
Non-current accounts receivable from related parties		48,358,915		34,407,142
Investments accounted for using the equity method		12,992,803		7,928,588	$ 12,873,531
Intangible assets other than goodwill	165,114,521	165,114,521	132,278,593	132,278,593	115,372,393
Goodwill		915,705,369		917,352,974	915,044,725
Property, plant and equipment		5,033,496,472		5,304,476,114	5,290,992,961
Investment property		7,421,940		6,795,155	$ 7,557,356
Right-of-use asset		55,502,192		55,843,510
Deferred tax assets		108,013,945		21,848,239
TOTAL NON-CURRENT ASSETS		6,878,070,388		6,839,775,504
TOTAL ASSETS		7,904,471,584		7,857,988,164
Other current financial liabilities		157,499,141		208,814,561
Current lease liabilities		7,007,711		5,842,015
Trade and other payables, current	627,958,022	627,958,022		599,263,208
Current accounts payable to related parties		130,053,962		159,809,887
Other current provisions		3,434,804		4,065,965
Current tax liabilities		72,359,944		17,995,833
Other current non-financial liabilities		47,166,581		45,508,383
TOTAL CURRENT LIABILITIES		1,045,480,165		1,041,299,852
Other non-current financial liabilities		1,483,589,126		1,692,604,245
Non-current lease liabilities		44,857,807		47,565,674
Trade and other payables non-current		117,210,059		56,250,085
Non-Current accounts payable to related parties		1,164,044,462		784,373,484
Other long-term provisions		210,241,671		171,860,282
Deferred tax liabilities		168,057,562		249,284,641
Non-current provisions for employee benefits		75,538,265		66,163,490
Other non-current non-financial liabilities		1,177,968		1,302,759
TOTAL NON-CURRENT LIABILITIES		3,264,716,920		3,069,404,660
TOTAL LIABILITIES		4,310,197,085		4,110,704,512
Foreign Currency U.F. [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Other current financial assets		707,749		707,749
Other current non-financial assets		1,117,707
Trade and other receivables, current		1,663,044
Inventories		48,280		53,034
TOTAL CURRENT ASSETS		3,536,780		760,783
Other non-current non-financial assets		58,216		56,950
Trade and other non-current receivables		8,745,386
Property, plant and equipment		1,045,376,735		35,346,435
Right-of-use asset		19,262,028		27,741,230
TOTAL NON-CURRENT ASSETS		1,073,442,365		63,144,615
TOTAL ASSETS		1,076,979,145		63,905,398
Other current financial liabilities		33,601,292		32,860,004
Current lease liabilities		3,129,937		2,357,438
Trade and other payables, current		16,207,046		5,215,585
Other current non-financial liabilities				254,084
TOTAL CURRENT LIABILITIES		52,938,275		40,687,111
Other non-current financial liabilities		249,693,690		274,035,059
Non-current lease liabilities		28,337,700		27,672,124
TOTAL NON-CURRENT LIABILITIES		278,031,390		301,707,183
TOTAL LIABILITIES		330,969,665		342,394,294
Foreign Currency Chilean Peso [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents		300,357,149		209,818,277
Other current financial assets		2,614,678		280,529
Other current non-financial assets		15,358,682		34,098,847
Trade and other receivables, current		544,736,403		500,407,168
Current accounts receivable from related parties		3,106,532		3,419,722
Inventories		17,978,682		34,959,079
Current tax assets		35,025,069		117,532,553
TOTAL CURRENT ASSETS		919,177,195		900,516,175
Other non-current financial assets		18,745,200		7,220,618
Other non-current non-financial assets		65,728,999		37,993,234
Trade and other non-current receivables		77,106,644		146,276,706
Investments accounted for using the equity method		7,451,193		7,928,588
Intangible assets other than goodwill		115,140,459		86,594,286
Goodwill		887,257,655		909,078,058
Property, plant and equipment		3,102,444,105		3,623,068,833
Investment property		7,421,940		6,795,155
Right-of-use asset		27,760,561		19,795,447
Deferred tax assets		98,353,360		6,530,201
TOTAL NON-CURRENT ASSETS		4,407,410,116		4,851,281,126
TOTAL ASSETS		5,326,587,311		5,751,797,301
Other current financial liabilities		4		5
Current lease liabilities		65,504		20,000
Trade and other payables, current		363,193,954		523,504,426
Current accounts payable to related parties		3,105,229		38,133,907
Other current provisions		3,194,786		4,065,965
Current tax liabilities		69,682,409		17,940,784
Other current non-financial liabilities		43,065,405		38,929,298
TOTAL CURRENT LIABILITIES		482,307,291		622,594,385
Non-current lease liabilities		56,084		68,922
Trade and other payables non-current		27,661		27,661
Other long-term provisions		192,728,322		155,315,044
Deferred tax liabilities		69,239,139		161,017,178
Non-current provisions for employee benefits		74,814,799		65,531,375
Other non-current non-financial liabilities		1,177,968		1,302,759
TOTAL NON-CURRENT LIABILITIES		338,043,973		383,262,939
TOTAL LIABILITIES		820,351,264		1,005,857,324
Foreign Currency USD [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents		27,617,370		18,115,385
Other current financial assets		29,977		322,317
Other current non-financial assets		2,189,622		535,716
Trade and other receivables, current		7,713,459		10,964,072
Current accounts receivable from related parties		29,404,983		40,603,423
Inventories		4,042,276		4,212,534
Current tax assets				9,740,736
TOTAL CURRENT ASSETS		70,997,687		84,494,183
Other non-current financial assets		1,373,356		2
Trade and other non-current receivables		359,154,278		167,297,679
Non-current accounts receivable from related parties		48,358,915		34,407,142
Investments accounted for using the equity method		5,171,047
Intangible assets other than goodwill		49,736,710		45,684,307
Goodwill		28,447,714		8,274,916
Property, plant and equipment		871,743,874		1,638,296,993
Right-of-use asset		1,634,255
Deferred tax assets		9,660,585		15,318,038
TOTAL NON-CURRENT ASSETS		1,375,280,734		1,909,279,077
TOTAL ASSETS		1,446,278,421		1,993,773,260
Other current financial liabilities		123,897,845		175,954,552
Current lease liabilities		2,841,336		2,836,524
Trade and other payables, current		242,153,349		66,209,531
Current accounts payable to related parties		21,185,153		11,910,024
Current tax liabilities		2,677,535		55,049
Other current non-financial liabilities		542,959		2,933,274
TOTAL CURRENT LIABILITIES		393,298,177		259,898,954
Other non-current financial liabilities		1,233,895,436		1,418,569,186
Non-current lease liabilities		9,461,026		12,754,827
Trade and other payables non-current		117,182,398		56,222,424
Non-Current accounts payable to related parties		1,164,044,462		486,839,483
Other long-term provisions		17,513,349		16,545,238
Deferred tax liabilities		98,818,423		88,267,463
Non-current provisions for employee benefits		723,466		632,115
TOTAL NON-CURRENT LIABILITIES		2,641,638,560		2,079,830,736
TOTAL LIABILITIES		3,034,936,737		2,339,729,690
Foreign Currency Euros [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents		83,819		654,319
Other current non-financial assets		293,128
Trade and other receivables, current		773,733		84,090
Current accounts receivable from related parties		25,464,610		22,859,682
Inventories		1,234,785		447,603
TOTAL CURRENT ASSETS		27,850,075		24,045,694
Other non-current financial assets		541,894
Property, plant and equipment				7,763,853
Right-of-use asset		6,845,348		8,306,833
TOTAL NON-CURRENT ASSETS		7,387,242		16,070,686
TOTAL ASSETS		35,237,317		40,116,380
Current lease liabilities		970,934		628,053
Trade and other payables, current		6,133,452		4,333,666
Current accounts payable to related parties		105,759,004		109,765,956
Other current non-financial liabilities		3,532,025		3,391,727
TOTAL CURRENT LIABILITIES		116,395,415		118,119,402
Non-current lease liabilities		7,002,997		7,069,801
Non-Current accounts payable to related parties				297,534,001
TOTAL NON-CURRENT LIABILITIES		7,002,997		304,603,802
TOTAL LIABILITIES		123,398,412		422,723,204
Foreign Currency Colombian peso [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Current accounts receivable from related parties				833,336
TOTAL CURRENT ASSETS				833,336
TOTAL ASSETS				833,336
Current accounts payable to related parties		4,576
TOTAL CURRENT LIABILITIES		4,576
TOTAL LIABILITIES		4,576
Foreign Currency Argentine peso [member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents		3,977,675		7,096,519
Other current non-financial assets		842,434
Inventories		6,006
Current tax assets		13,344
TOTAL CURRENT ASSETS		4,839,459		7,096,519
Trade and other non-current receivables		10,258
Investments accounted for using the equity method		370,563
Intangible assets other than goodwill		237,352
Property, plant and equipment		13,931,758
TOTAL NON-CURRENT ASSETS		14,549,931
TOTAL ASSETS		19,389,390		7,096,519
Trade and other payables, current		270,221
Other current provisions		240,018
Other current non-financial liabilities		26,192
TOTAL CURRENT LIABILITIES		536,431
TOTAL LIABILITIES		$ 536,431
Foreign Currency Brazilian Real [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Current accounts receivable from related parties				465,970
TOTAL CURRENT ASSETS				465,970
TOTAL ASSETS				$ 465,970

Appendix 2 Additional Informa_3

Appendix 2 Additional Information No. 715 of February 3, 2012 - Summary of Aging of Trade and Other Receivables (Detail) - CLP ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Trade And Other Receivables [Line Items]
Trade receivables, gross		$ 481,442,020	$ 456,552,682
Leasing Accounts Receivables, Non-current		62,602,528	117,873,340
Impairment losses of other assets	$ (378,993)	0	0	$ 0
Other receivables, Current		69,371,881	43,780,770
Trade and other receivables, Current		554,886,639	511,455,330
Trade receivables, Non-current		377,047,284	191,966,929
Trade accounts receivable and other accounts receivable		5,366,754	3,734,116
Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		531,179,316	500,040,783
Leasing Accounts Receivables, Non-current		62,602,528	117,873,340
Other receivables, Current		79,890,848	53,720,399
Trade and other receivables, Current		619,626,310	566,919,977
Trade receivables, Non-current		377,160,616	191,966,929
Trade accounts receivable and other accounts receivable		5,366,754	3,734,116
Oficio Circular Official Bulletin No715 | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(49,737,296)	(43,488,101)
Trade receivables, Non-current		(113,332)
Oficio Circular Official Bulletin No715 | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(10,518,967)	(9,939,628)
Oficio Circular Official Bulletin No715 | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Accounts receivable for leasing, gross		8,556,146	13,158,795
Leasing Accounts Receivables, Non-current		62,602,528	117,873,340
Impairment losses of other assets		(4,483,408)	(2,036,917)
Trade and other receivables, Current		554,886,639	511,455,331
Trade receivables, Non-current		445,016,566	313,574,385
Oficio Circular Official Bulletin No715 | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		531,179,316	500,040,783
Trade receivables, Non-current		377,160,616	191,966,929
Oficio Circular Official Bulletin No715 | Gross Carrying Amount [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Other receivables, Current			53,720,399
Trade and other receivables, Current		79,890,848
Trade accounts receivable and other accounts receivable		5,366,754	3,734,116
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(5,564,122)	(3,148,393)
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets			(55,690)
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Accounts receivable for leasing, gross		8,556,146	13,158,795
Impairment losses of other assets		(4,483,408)	(2,036,917)
Trade and other receivables, Current		445,627,153	445,500,893
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		377,746,656	393,746,637
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Carrying Amount [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Other receivables, Current		69,371,881	43,836,461
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(291,820)	(357,214)
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		36,093,197	32,102,797
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		36,385,017	32,460,011
Oficio Circular Official Bulletin No715 | 31-60 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(999,683)	(484,022)
Oficio Circular Official Bulletin No715 | 31-60 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		11,407,509	7,445,293
Oficio Circular Official Bulletin No715 | 31-60 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		12,407,192	7,929,315
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(1,089,744)	(587,103)
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		5,447,770	4,113,180
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		6,537,514	4,700,283
Oficio Circular Official Bulletin No715 | 91 - 120 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(2,061,977)	(677,088)
Oficio Circular Official Bulletin No715 | 91 - 120 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		4,838,764	2,320,709
Oficio Circular Official Bulletin No715 | 91 - 120 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		6,900,741	2,997,797
Oficio Circular Official Bulletin No715 | 121-150 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(2,685,492)	(845,948)
Oficio Circular Official Bulletin No715 | 121-150 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		4,861,478	1,908,418
Oficio Circular Official Bulletin No715 | 121-150 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		7,546,970	2,754,366
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(3,242,896)	(804,567)
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		3,813,146	2,233,138
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		7,056,042	3,037,705
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(2,392,141)	(1,413,915)
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		1,477,091	1,253,184
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		3,869,232	2,667,099
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(2,225,233)	(1,114,081)
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		1,314,469	1,396,602
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		3,539,702	2,510,683
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(29,184,188)	(34,055,771)
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(10,518,967)	(9,883,938)
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		40,006,062	13,181,116
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		69,190,250	47,236,887
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Gross Carrying Amount [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Other receivables, Current		$ 10,518,967	$ 9,883,938

Appendix 2 Additional Informa_4

Appendix 2 Additional Information No. 715 of February 3, 2012 - Summary of Trade and Other Receivables by Type of Portfolio (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)customer	Dec. 31, 2019CLP ($)customer
Trade And Other Receivables [Line Items]
Number of Customers | customer	3,018	3,175
Gross Amount | $	$ 554,886,639	$ 511,455,330
Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,095,963	2,039,630
Gross Amount | $	$ 668,701,089	$ 572,250,897
Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	106,133	79,027
Gross Amount | $	$ 239,638,843	$ 119,756,815
Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,202,096	2,118,657
Gross Amount | $	$ 908,339,932	$ 692,007,712
Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,466,900	1,340,828
Gross Amount | $	$ 523,805,724	$ 469,633,677
Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	52,534	36,952
Gross Amount | $	$ 231,101,548	$ 116,079,889
Current Portfolio [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,519,434	1,377,780
Gross Amount | $	$ 754,907,272	$ 585,713,566
1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	395,186	433,225
Gross Amount | $	$ 34,812,023	$ 30,871,310
1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	20,715	21,280
Gross Amount | $	$ 1,572,994	$ 1,588,701
1-30 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	415,901	454,505
Gross Amount | $	$ 36,385,017	$ 32,460,011
31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	80,032	106,521
Gross Amount | $	$ 9,839,311	$ 7,630,607
31-60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	6,815	8,018
Gross Amount | $	$ 2,567,881	$ 298,708
31-60 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	86,847	114,539
Gross Amount | $	$ 12,407,192	$ 7,929,315
61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	33,889	17,349
Gross Amount | $	$ 6,030,130	$ 4,363,345
61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	3,116	2,080
Gross Amount | $	$ 507,384	$ 336,938
61 - 90 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	37,005	19,429
Gross Amount | $	$ 6,537,514	$ 4,700,283
91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	20,530	11,084
Gross Amount | $	$ 6,763,017	$ 2,852,961
91 - 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,021	1,661
Gross Amount | $	$ 137,724	$ 144,836
91 - 120 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	22,551	12,745
Gross Amount | $	$ 6,900,741	$ 2,997,797
121 to 150 days | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	14,558	5,819
Gross Amount | $	$ 6,398,089	$ 2,510,766
121 to 150 days | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,478	1,256
Gross Amount | $	$ 1,148,881	$ 243,600
121 to 150 days | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	16,036	7,075
Gross Amount | $	$ 7,546,970	$ 2,754,366
151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	14,025	3,962
Gross Amount | $	$ 5,653,084	$ 2,863,659
151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,393	544
Gross Amount | $	$ 1,402,958	$ 174,046
151-180 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	15,418	4,506
Gross Amount | $	$ 7,056,042	$ 3,037,705
181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	9,955	3,647
Gross Amount | $	$ 3,625,873	$ 2,571,731
181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,311	377
Gross Amount | $	$ 243,359	$ 95,368
181-210 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	11,266	4,024
Gross Amount | $	$ 3,869,232	$ 2,667,099
211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	8,864	2,677
Gross Amount | $	$ 3,314,300	$ 2,421,028
211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,526	342
Gross Amount | $	$ 225,402	$ 89,655
211-250 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	10,390	3,019
Gross Amount | $	$ 3,539,702	$ 2,510,683
More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	52,024	114,518
Gross Amount | $	$ 68,459,538	$ 46,531,813
More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	15,224	6,517
Gross Amount | $	$ 730,712	$ 705,074
More than 251 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	67,248	121,035
Gross Amount | $	$ 69,190,250	$ 47,236,887

Appendix 2 Additional Informa_5

Appendix 2 Additional Information No. 715 of February 3, 2012 - Summary of Portfolio in Default and in Legal Collection Process of Notes Receivable (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020CLP ($)customer	Dec. 31, 2019CLP ($)customer
Portfolio In Default And In Legal Collection Process [Line Items]
Number of Customers | customer	3,018	3,175
Amount | $	$ 5,856,967	$ 6,571,586
Notes receivable in default [Member]
Portfolio In Default And In Legal Collection Process [Line Items]
Number of Customers | customer	1,878	1,888
Amount | $	$ 256,927	$ 258,073
Notes receivable in legal collection process [Member]
Portfolio In Default And In Legal Collection Process [Line Items]
Number of Customers | customer	1,140	1,287
Amount | $	$ 5,600,040	$ 6,313,513

Appendix 2 Additional Informa_6

Appendix 2 Additional Information No. 715 of February 3, 2012 - Summary of Provisions and Write-offs Portfolio (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs	$ 15,167,707	$ 10,047,000
Non-renegotiated Portfolio [Member]
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs	12,467,992	4,403,135
Renegotiated Portfolio [Member]
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs	$ 2,699,715	$ 5,643,865

Appendix 2 Additional Informa_7

Appendix 2 Additional Information No. 715 of February 3, 2012 - Summary of Number and Value of Operations (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2020CLP ($)item	Dec. 31, 2019CLP ($)item	Dec. 31, 2020CLP ($)item	Dec. 31, 2019CLP ($)item
Impairment Provisions And Recoveries [Abstract]
Number of Transactions | item	10,390	52,870	72,590	88,750
Amount of the transactions | $	$ 7,768,107	$ 2,451,690	$ 15,167,707	$ 10,047,000

Appendix 2.1 Additional Informa

Appendix 2.1 Additional Information No. 715 of February 3, 2012 - Summary of Trade Receivables by Aging (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Trade And Other Receivables [Line Items]
Trade receivables, Current	$ 481,442,020	$ 456,552,682
Non-current receivables	445,016,566	313,574,385
Trade receivables, Non-current	377,047,284	191,966,929
Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	531,179,316	500,040,783
Non-current receivables	445,129,898	313,574,385
Trade receivables, Non-current	377,160,616	191,966,929
Portfolio stratification [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	481,442,020	456,552,682
Non-current receivables	377,047,284	191,966,929
Portfolio stratification [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	531,179,316	500,040,783
Trade receivables, Non-current	377,160,616	191,966,929
Portfolio stratification [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(49,737,296)	(43,488,101)
Trade receivables, Non-current	(113,332)
Portfolio stratification [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	372,182,534	390,598,244
Portfolio stratification [Member] | Current Portfolio [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	377,746,656	393,746,637
Portfolio stratification [Member] | Current Portfolio [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(5,564,122)	(3,148,393)
Portfolio stratification [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	36,093,197	32,102,797
Portfolio stratification [Member] | 1-30 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	36,385,017	32,460,011
Portfolio stratification [Member] | 1-30 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(291,820)	(357,214)
Portfolio stratification [Member] | 31-60 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	11,407,509	7,445,293
Portfolio stratification [Member] | 31-60 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	12,407,192	7,929,315
Portfolio stratification [Member] | 31-60 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(999,683)	(484,022)
Portfolio stratification [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	5,447,770
Portfolio stratification [Member] | 61 - 90 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,537,514
Portfolio stratification [Member] | 61 - 90 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(1,089,744)
Portfolio stratification [Member] | 91 - 120 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,838,764	2,320,709
Portfolio stratification [Member] | 91 - 120 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,900,741	2,997,797
Portfolio stratification [Member] | 91 - 120 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,061,977)	(677,088)
Portfolio stratification [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,861,478	1,908,418
Portfolio stratification [Member] | 121-150 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	7,546,970	2,754,366
Portfolio stratification [Member] | 121-150 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,685,492)	(845,948)
Portfolio stratification [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,813,146	2,233,138
Portfolio stratification [Member] | 151-180 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	7,056,042	3,037,705
Portfolio stratification [Member] | 151-180 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(3,242,896)	(804,567)
Portfolio stratification [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,477,091	1,253,184
Portfolio stratification [Member] | 181-210 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,869,232	2,667,099
Portfolio stratification [Member] | 181-210 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,392,141)	(1,413,915)
Portfolio stratification [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,314,469	1,396,602
Portfolio stratification [Member] | 211-250 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,539,702	2,510,683
Portfolio stratification [Member] | 211-250 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,225,233)	(1,114,081)
Portfolio stratification [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	5,520,169	2,512,403
Portfolio stratification [Member] | More than 251 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	14,730,348	4,989,743
Portfolio stratification [Member] | More than 251 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(9,210,179)	(2,477,340)
Portfolio stratification [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	34,485,893	10,668,714
Portfolio stratification [Member] | More than 365 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	54,459,902	42,247,144
Portfolio stratification [Member] | More than 365 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(19,974,009)	(31,578,430)
Portfolio stratification [Member] | 61-90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		4,113,180
Portfolio stratification [Member] | 61-90 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		4,700,283
Portfolio stratification [Member] | 61-90 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		(587,103)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	240,392,216	212,522,597
Trade receivables, Non-current	164,089,704	86,403,772
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(3,791,334)	(2,914,767)
Trade receivables, Non-current	(113,332)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	234,943,733	203,719,208
Trade receivables, Non-current	164,089,704	86,403,772
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	5,448,483	8,803,389
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	174,990,109	142,968,302
Trade receivables, Non-current	164,089,704	86,403,772
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	65,402,107	69,554,295
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	207,362,673	199,019,252
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(123,260)	(10,907)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	204,354,697	193,125,348
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,007,976	5,893,904
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	174,934,439	142,968,302
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	32,428,234	56,050,950
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	17,592,321	2,888,824
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(989)	(260)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	17,521,848	2,763,610
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	70,473	125,214
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	17,592,321	2,888,824
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 31-60 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,880,972	224,770
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(1,163)	(200)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,876,016	43,392
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,956	181,378
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,880,972	224,770
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	373,611
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(1,002)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	368,006
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	5,605
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	373,611
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 91 - 120 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	457,537	404,757
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(56,036)	(103)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	135,284	290,439
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	322,253	114,318
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	55,670
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	401,867	404,757
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	494,444	116,371
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(633)	(93)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	485,164	13,672
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	9,280	102,699
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	494,444	116,371
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	356,603	787,421
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(722)	(258)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	199,958	574,794
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	156,645	212,627
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	356,603	787,421
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	377,744	187,920
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(4,160)	(154)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	243,828	78,802
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	133,916	109,118
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	377,744	187,920
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	533,493	592,987
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(3,946)	(98)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	270,705	487,520
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	262,788	105,467
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	533,493	592,987
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,925,441	1,354,217
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(406,781)	(577)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	853,335	846,079
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,072,106	508,138
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,925,441	1,354,217
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	9,037,377	6,240,193
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(3,192,642)	(2,901,975)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	8,634,892	4,944,351
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	402,485	1,295,842
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	9,037,377	6,240,193
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61-90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		705,885
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		(142)
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		551,201
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		154,684
Trade receivables, Generation and Transmission [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		705,885
Trade receivables, distribution [Member] | Portfolio stratification [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	290,787,100	287,518,186
Trade receivables, Non-current	213,070,912	105,563,157
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(45,945,962)	(40,573,334)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	178,636,908	205,431,015
Trade receivables, Non-current	209,112,768	103,267,572
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	82,697,440	59,976,399
Trade receivables, Non-current	807,561	7,086
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	29,452,752	22,110,772
Trade receivables, Non-current	3,150,583	2,288,499
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	126,861,713	141,740,569
Trade receivables, Non-current	206,186,925	100,458,746
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	163,925,387	145,777,617
Trade receivables, Non-current	6,883,986	5,104,411
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	170,383,983	194,727,385
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(5,440,862)	(3,137,486)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	102,010,816	144,845,823
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	63,058,780	44,406,790
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	5,314,387	5,474,772
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	126,861,713	141,740,569
Trade receivables, distribution [Member] | Portfolio stratification [Member] | Current Portfolio [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	43,522,270	52,986,816
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	18,792,696	29,571,187
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(290,831)	(356,954)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	10,395,375	21,084,861
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,720,252	6,202,698
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,677,069	2,283,628
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 1-30 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	18,792,696	29,571,187
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 31-60 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	10,526,220	7,704,545
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(998,520)	(483,822)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	5,325,182	5,054,606
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,907,638	1,154,539
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,293,400	1,495,400
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 31-60 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	10,526,220	7,704,545
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,163,903
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(1,088,742)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,551,187
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	817,788
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	794,928
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61 - 90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,163,903
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 91 - 120 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,443,204	2,593,040
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,005,941)	(676,985)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,889,157	1,672,041
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,875,941	95,168
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	678,106	825,831
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 91 - 120 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,443,204	2,593,040
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	7,052,526	2,637,995
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,684,859)	(845,855)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,248,311	1,384,133
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,031,268	271,785
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,772,947	982,077
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 121-150 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	7,052,526	2,637,995
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,699,439	2,250,284
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(3,242,174)	(804,309)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,049,459	1,257,238
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	358,060	448,510
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	2,291,920	544,536
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 151-180 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,699,439	2,250,284
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,491,488	2,479,179
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,387,981)	(1,413,761)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	2,189,259	922,539
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(17,541)	209,272
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	1,319,770	1,347,368
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 181-210 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,491,488	2,479,179
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,006,209	1,917,696
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(2,221,287)	(1,113,983)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	2,730,394	789,642
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(16,790)	206,091
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	292,605	921,963
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 211-250 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	3,006,209	1,917,696
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	12,804,907	3,635,526
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(8,803,398)	(2,476,763)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	8,211,749	2,097,222
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	469,117	775,558
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	4,124,041	762,746
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 251 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	12,804,907	3,635,526
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	45,422,525	36,006,951
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	(16,781,367)	(28,676,455)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	31,036,019	24,433,032
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	6,492,927	5,784,217
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	7,893,579	5,789,702
Trade receivables, distribution [Member] | Portfolio stratification [Member] | More than 365 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current	$ 45,422,525	36,006,951
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61-90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		3,994,398
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Accumulated impairment [member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		(586,961)
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		1,889,878
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		421,771
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		1,682,749
Trade receivables, distribution [Member] | Portfolio stratification [Member] | 61-90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, Current		$ 3,994,398

Appendix 2.1 Additional Infor_2

Appendix 2.1 Additional Information No. 715 of February 3, 2012 - Summary of Type of Portfolio (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Trade And Other Receivables [Line Items]
Trade and other receivables, current	$ 554,886,639	$ 511,455,330
Non-current receivables	445,016,566	313,574,385
Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	668,701,089	572,250,897
Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	239,638,843	119,756,815
1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	34,812,023	30,871,310
1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,572,994	1,588,701
31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	9,839,311	7,630,607
31-60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,567,881	298,708
61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,030,130	4,363,345
61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	507,384	336,938
91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,763,017	2,852,961
91 - 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	137,724	144,836
151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	5,653,084	2,863,659
151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,402,958	174,046
181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,625,873	2,571,731
181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	243,359	95,368
211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,314,300	2,421,028
211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	225,402	89,655
More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	68,459,538	46,531,813
More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	730,712	705,074
Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	523,805,724	469,633,677
Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	231,101,548	116,079,889
Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	619,626,310	566,919,977
Non-current receivables	445,129,898	313,574,385
Portfolio By Type | Large customers [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,530,802
Portfolio By Type | Large customers [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,801,692
Portfolio By Type | Large customers [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	772,761
Portfolio By Type | Large customers [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,855,461
Portfolio By Type | Large customers [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,031,268
Portfolio By Type | Large customers [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	358,060
Portfolio By Type | Large customers [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	(17,541)
Portfolio By Type | Large customers [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	(35,811)
Portfolio By Type | Large customers [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,962,044
Portfolio By Type | Large customers [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	61,579,935
Portfolio By Type | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	531,179,316	500,040,783
Non-current receivables	377,160,616	191,966,929
Portfolio By Type | Gross Carrying Amount [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	36,385,017	32,460,011
Portfolio By Type | Gross Carrying Amount [Member] | 31-60 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	12,407,192	7,929,315
Portfolio By Type | Gross Carrying Amount [Member] | 61-90 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		4,700,283
Portfolio By Type | Gross Carrying Amount [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,537,514
Portfolio By Type | Gross Carrying Amount [Member] | 91 - 120 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,900,741	2,997,797
Portfolio By Type | Gross Carrying Amount [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	7,546,970	2,754,366
Portfolio By Type | Gross Carrying Amount [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	7,056,042	3,037,705
Portfolio By Type | Gross Carrying Amount [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,869,232	2,667,099
Portfolio By Type | Gross Carrying Amount [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,539,702	2,510,683
Portfolio By Type | Gross Carrying Amount [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	69,190,250	47,236,887
Portfolio By Type | Gross Carrying Amount [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	377,746,656	393,746,637
Portfolio By Type | Gross Carrying Amount [Member] | Large customers [Member] | Non-renegotiated Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	80,838,671
Non-current receivables	223,507
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		2,888,824
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	17,592,321
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		224,770
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,880,972
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		705,885
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	373,611
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		404,757
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	457,537
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		116,371
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	494,444
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		787,421
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	356,603
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		187,920
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	377,744
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		592,987
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	533,493
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		7,594,410
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	10,596,272
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		199,019,252
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	207,362,673
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	17,521,848	2,763,610
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,876,016	43,392
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		551,201
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	368,006
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	135,284	290,439
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	485,164	13,672
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	199,958	574,794
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	243,828	78,802
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	270,705	487,520
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	9,488,227	5,790,430
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Large customers [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	204,354,697	193,125,348
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	70,473	125,214
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	4,956	181,378
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		154,684
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	5,605
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	322,253	114,318
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	9,280	102,699
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	156,645	212,627
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	133,916	109,118
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	262,788	105,467
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,108,045	1,803,980
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Others [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,007,976	5,893,904
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Gross Carrying Amount [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		212,522,597
Non-current receivables		86,403,772
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Gross Carrying Amount [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	240,025,670
Non-current receivables	164,089,704
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Gross Carrying Amount [Member] | Large customers [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	234,943,733	203,719,208
Non-current receivables	164,089,704	86,403,772
Portfolio By Type | Trade receivables, Generation and Transmission [Member] | Gross Carrying Amount [Member] | Others [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	5,081,937	8,803,389
Portfolio By Type | Trade receivables, distribution [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	17,219,702	27,982,486
Portfolio By Type | Trade receivables, distribution [Member] | 1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,572,994	1,588,701
Portfolio By Type | Trade receivables, distribution [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	7,958,339	7,405,837
Portfolio By Type | Trade receivables, distribution [Member] | 31-60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,567,881	298,708
Portfolio By Type | Trade receivables, distribution [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		3,657,460
Portfolio By Type | Trade receivables, distribution [Member] | 61-90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		336,938
Portfolio By Type | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	5,656,519
Portfolio By Type | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	507,384
Portfolio By Type | Trade receivables, distribution [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,305,480	2,448,204
Portfolio By Type | Trade receivables, distribution [Member] | 91 - 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	137,724	144,836
Portfolio By Type | Trade receivables, distribution [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	5,903,645	2,394,395
Portfolio By Type | Trade receivables, distribution [Member] | 121-150 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,148,881	243,600
Portfolio By Type | Trade receivables, distribution [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	5,296,481	2,076,238
Portfolio By Type | Trade receivables, distribution [Member] | 151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,402,958	174,046
Portfolio By Type | Trade receivables, distribution [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,248,129	2,383,811
Portfolio By Type | Trade receivables, distribution [Member] | 181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	243,359	95,368
Portfolio By Type | Trade receivables, distribution [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,780,807	1,828,041
Portfolio By Type | Trade receivables, distribution [Member] | 211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	225,402	89,655
Portfolio By Type | Trade receivables, distribution [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	57,863,266	38,937,403
Portfolio By Type | Trade receivables, distribution [Member] | More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	730,712	705,074
Portfolio By Type | Trade receivables, distribution [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	151,965,997	184,125,135
Portfolio By Type | Trade receivables, distribution [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	18,417,986	10,602,250
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		6,148,385
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	189,449	54,312
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		1,130,250
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 31-60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	105,946	24,288
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		421,771
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	45,027
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		95,168
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 91 - 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	20,480
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		271,785
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		448,510
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		209,272
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		206,091
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | 211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	19,021
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		4,961,884
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		46,775
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		44,252,680
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,478,845	154,110
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,451,119	1,509,946
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	225,950	773,682
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,384,582	1,495,390
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 31-60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,908,819	9
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		1,679,672
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 61-90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		3,077
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	791,851
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,077
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	678,106	825,831
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	975,284	960,063
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 121-150 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	797,663	22,014
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,347,634	544,525
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	944,285	11
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,319,756	1,347,368
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	14
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	292,605	921,963
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	12,015,155	7,931,774
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,464	171,790
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,617,301	3,024,981
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,697,086	2,449,792
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	9,237,781	20,324,155
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,157,595	760,707
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 31-60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	4,772,065	4,780,197
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 31-60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	553,116	274,411
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 61-90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		1,556,017
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 61-90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		333,861
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	4,091,907
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	459,280
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 91 - 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,771,913	1,527,205
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 91 - 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	117,244	144,836
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,897,093	1,162,547
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 121-150 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	351,218	221,586
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	3,590,787	1,083,203
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	458,673	174,035
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,945,914	827,171
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	243,345	95,368
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	2,524,013	699,987
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | 211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	206,381	89,655
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	38,886,067	26,043,745
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	728,248	486,509
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	87,768,761	136,847,474
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	14,242,055	7,998,348
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	264,198,365	273,239,010
Non-current receivables	387,350	85,518
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	26,955,281	14,279,176
Non-current receivables	212,683,562	105,477,639
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Large customers [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current		58,145,796
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Large customers [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	1,858,768	279,485
Non-current receivables	584,054	7,086
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Institutional customers [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	22,873,393	20,241,513
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Institutional customers [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	6,579,358	3,420,375
Non-current receivables	3,150,583	2,288,499
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Mass-market Customers [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	160,486,301	194,851,701
Non-current receivables	163,843	85,518
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Mass-market Customers [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, current	18,517,155	10,579,316
Non-current receivables	$ 208,948,925	$ 103,182,054

Appendix 2.2 Additional Informa

Appendix 2.2 Additional Information No. 715 of February 3, 2012 - Summary of Estimated Sales and Purchases of Energy and Capacity - Statement of Financial Position (Detail) $ in Thousands, in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Current accounts receivable from related parties		$ 57,976,125	$ 68,182,133
Trade and other receivables, current		554,886,639	511,455,330
Trade and other receivables, Non-current		445,016,566	313,574,385
Current accounts payable to related parties		130,053,962	159,809,887
Trade and other payables, current	627,958,022	627,958,022	599,263,208
Trade and other payables non-current		117,210,059	56,250,085
Estimated Sales and Purchases of Energy and Capacity [Member] | Energy and Capacity [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Trade and other receivables, current		229,499,918	209,842,624
Trade and other receivables, Non-current		396,509,053	192,961,043
Total Estimated Assets		626,008,971	402,803,667
Trade and other payables, current		68,569,674	71,189,226
Trade and other payables non-current		121,315,888	53,941,373
Total Estimated Liabilities		189,885,562	125,130,599
Estimated Sales and Purchases of Energy and Capacity [Member] | Energy and Tolls [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Trade and other receivables, current		33,270,963	13,929,209
Total Estimated Assets		33,270,963	13,929,209
Trade and other payables, current		13,216,339	20,059,576
Total Estimated Liabilities		$ 13,216,339	$ 20,059,576

Appendix 2.2 Additional Infor_2

Appendix 2.2 Additional Information No. 715 of February 3, 2012 - Summary of Estimated Sales and Purchases of Energy and Capacity - Income Statement (Detail) - Estimated Sales and Purchases of Energy and Capacity [Member] - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Energy And Power [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Energy Sales	$ 422,457,671	$ 310,301,370
Energy Purchases	147,662,168	125,130,599
Energy and Tolls [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Energy Sales	33,270,962	13,929,209
Energy Purchases	$ 11,928,862	$ 20,059,576

Appendix 3 Details of Due Dat_3

Appendix 3 Details of Due Dates of Payments to Suppliers - Summary of Details of Due Dates of Payments to Suppliers (Detail) - CLP ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	$ 695,245,970	$ 573,711,905
Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	260,389,102	164,394,740
Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	150,726,894	220,585,729
Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	284,129,974	188,731,436
Up to 30 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	389,371,306	371,174,912
Up to 30 days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	133,063,016	101,666,302
Up to 30 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	89,574,397	148,397,518
Up to 30 days [Member] | Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	166,733,893	121,111,092
31-60 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	110,099,852	76,869,205
31-60 days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	49,211,386	5,579,618
31-60 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	60,808,696	71,069,622
31-60 days [Member] | Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	79,770	219,965
61-90 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	78,645,041	21,342,007
61-90 days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	78,114,700	9,045,950
61-90 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	343,314	1,118,102
61-90 days [Member] | Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	187,027	11,177,955
One hundred and twenty one to three Hundred sixty five days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers		48,102,870
One hundred and twenty one to three Hundred sixty five days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers		48,102,870
More than 365 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	117,129,771	56,222,911
More than 365 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	487	487
More than 365 days [Member] | Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	$ 117,129,284	$ 56,222,424

Appendix 3 Details of Due Dat_4

Appendix 3 Details of Due Dates of Payments to Suppliers - Summary of Suppliers (Detail) $ in Thousands, in Thousands	Dec. 31, 2020CLF ( )	Dec. 31, 2020CLP ($)	Dec. 31, 2019CLP ($)
Details Of Due Dates Of Payments To Suppliers [Line Items]
Accounts payable for goods and services		$ 695,245,970	$ 573,711,905
Total	627,958,022	627,958,022	599,263,208
Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Accounts payable for goods and services		260,389,102	164,394,740
Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Accounts payable for goods and services		150,726,894	220,585,729
Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Accounts payable for goods and services		284,129,974	188,731,436
Up-to-date Payments [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for energy purchase		248,713,288	232,095,186
Suppliers for the purchase of fuels and gas		36,735,748	55,179,023
Accounts payable for goods and services		294,413,582	183,849,044
Accounts payable for the purchase of assets		115,383,352	102,588,652
Total		695,245,970	573,711,905
Up-to-date Payments [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Accounts payable for goods and services		202,897,547	81,807,039
Accounts payable for the purchase of assets		57,491,555	82,587,701
Total		260,389,102	164,394,740
Up-to-date Payments [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for energy purchase		22,475,111	63,364,701
Suppliers for the purchase of fuels and gas		36,735,748	55,179,023
Accounts payable for goods and services		91,516,035	102,042,005
Total		150,726,894	220,585,729
Up-to-date Payments [Member] | Other [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for energy purchase		226,238,177	168,730,485
Accounts payable for the purchase of assets		57,891,797	20,000,951
Total		$ 284,129,974	$ 188,731,436