Enel Chile (ENIC) 20-F 29 Apr 20 2019 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2019shares
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, 2019
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	2019
Document Fiscal Period Focus	FY
Entity Voluntary Filers	No
Amendment Flag	false

Consolidated Statements of Fina

Consolidated Statements of Financial Position - CLP ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 20, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 235,684,500,000	$ 245,171,924,000	$ 419,456,026,000		$ 245,999,192,000
Other current financial assets	1,310,595,000	40,303,173,000
Other current non-financial assets	34,634,563,000	22,406,088,000
Trade and other current receivables	511,455,330,000	478,170,067,000
Current accounts receivable from related parties	68,182,133,000	54,171,060,000
Inventories	39,672,250,000	56,961,643,000
Current tax assets	127,273,289,000	99,763,817,000
TOTAL CURRENT ASSETS	1,018,212,660,000	996,947,772,000
NON-CURRENT ASSETS
Other non-current financial assets	7,220,620,000	7,269,669,000
Other non-current non-financial assets	38,050,184,000	44,608,012,000
Trade and other non-current receivables	313,574,385,000	60,527,843,000
Non-current accounts receivable from related parties	34,407,142,000
Investments accounted for using the equity method	7,928,588,000	12,873,531,000	16,912,454,000
Intangible assets other than goodwill	132,278,593,000	115,372,393,000	55,170,904,000
Goodwill	917,352,974,000	915,044,725,000	887,257,655,000
Property, plant and equipment	5,360,319,624,000	5,308,647,633,000	3,585,687,137,000
Investment property	6,795,155,000	7,557,356,000	8,356,772,000
Deferred tax assets	21,848,239,000	19,171,230,000
TOTAL NON-CURRENT ASSETS	6,839,775,504,000	6,491,072,392,000
TOTAL ASSETS	7,857,988,164,000	7,488,020,164,000
CURRENT LIABILITIES
Other current financial liabilities	214,656,576,000	410,665,815,000
Trade and other current payables	599,263,208,000	554,286,324,000
Current accounts payable to related parties	159,809,887,000	157,936,325,000
Other current provisions	4,065,965,000	5,588,786,000
Current tax liabilities	17,995,833,000	17,677,920,000
Other current non-financial liabilities	45,508,383,000	71,308,982,000
TOTAL CURRENT LIABILITIES	1,041,299,852,000	1,217,464,152,000
NON-CURRENT LIABILITIES
Other non-current financial liabilities	1,740,169,919,000	1,705,833,503,000
Trade and other non-current payables	56,250,085,000	2,584,180,000
Non-current accounts payable to related parties	784,373,484,000	447,193,802,000
Other long-term provisions	171,860,282,000	105,871,375,000
Deferred tax liabilities	249,284,641,000	278,080,054,000
Non-current provisions for employee benefits	66,163,490,000	56,602,664,000
Other non-current non-financial liabilities	1,302,759,000	226,653,000
TOTAL NON-CURRENT LIABILITIES	3,069,404,660,000	2,596,392,231,000
TOTAL LIABILITIES	4,110,704,512,000	3,813,856,383,000
EQUITY
Allocated capital	3,882,103,470,000	3,954,491,479,000		$ 1,891,727,278,668
Retained earnings	2,008,103,651,000	1,914,797,613,000
Treasury shares		(72,388,009,000)
Other reserves	(2,405,509,135,000)	(2,375,672,564,000)	(997,330,548,000)		(1,035,092,978,000)
Equity attributable to Enel Chile	3,484,697,986,000	3,421,228,519,000
Non-controlling interests	262,585,666,000	252,935,262,000	803,577,647,000
TOTAL EQUITY	3,747,283,652,000	3,674,163,781,000	$ 3,786,961,657,000		$ 3,462,993,642,000
TOTAL LIABILITIES AND EQUITY	$ 7,857,988,164,000	$ 7,488,020,164,000

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income, by Nature - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statements of Comprehensive Income
Revenues	$ 2,624,576,323	$ 2,410,360,459	$ 2,484,101,582
Other operating income	146,258,037	46,800,967	38,876,700
Revenues and other operating income	2,770,834,360	2,457,161,426	2,522,978,282
Raw materials and consumables used	(1,421,205,251)	(1,292,177,116)	(1,514,786,921)
Contribution Margin	1,349,629,109	1,164,984,310	1,008,191,361
Other work performed by the entity and capitalized	17,610,861	16,710,963	14,388,987
Employee benefits expense	(129,604,956)	(123,130,334)	(121,503,777)
Depreciation and amortization expense	(236,627,387)	(215,187,300)	(152,684,106)
Reversal of impairment losses (impairment losses) recognized on non-financial assets	(280,762,652)	(779,825)
Impairment loss recognized in the period’s profit or loss	(10,047,000)	(4,783,072)	(7,937,817)
Other expenses	(184,143,140)	(167,210,021)	(161,824,074)
Operating Income	526,054,835	670,604,721	578,630,574
Other gains	1,793,201	3,410,379	113,241,196
Financial income	27,399,275	19,934,468	21,662,688
Financial costs	(164,897,900)	(122,184,189)	(53,510,882)
Share of profit (loss) of associates and joint ventures accounted for using the equity method	366,089	3,190,240	(2,696,904)
Foreign Currency Exchange Differences	(10,412,110)	(7,807,197)	8,516,874
Profit (losses) from Indexed Assets and Liabilities	(2,982,268)	(818,146)	916,666
Income before taxes	377,321,122	566,330,276	666,760,212
Income tax expense, continuing operations	(61,227,904)	(153,482,519)	(143,342,301)
NET INCOME	316,093,218	412,847,757	523,417,911
Net income attributable to:
Equity owners of Enel Chile	296,153,605	361,709,937	349,382,642
Non-controlling interests	19,939,613	51,137,820	174,035,269
NET INCOME	$ 316,093,218	$ 412,847,757	$ 523,417,911
Basic earnings per share
Basic earnings per share	$ 4.28	$ 5.66	$ 7.12
Weighted average number of shares of common stock	69,166,557,220	63,913,359,484	49,092,772,762
Diluted earnings per share
Diluted earnings per share	$ 4.28	$ 5.66	$ 7.12
Weighted average number of shares of common stock	69,166,557,220	63,913,359,484	49,092,772,762
Net Income	$ 316,093,218	$ 412,847,757	$ 523,417,911
Components of other comprehensive income that will not be reclassified subsequently to profit or loss, before taxes
Remeasurement losses from defined benefit plans	(7,777,204)	37,881	1,716,875
Other comprehensive loss that will not be reclassified subsequently to profit or loss	(7,777,204)	37,881	1,716,875
Components of other comprehensive income (loss) that will be reclassified subsequently to profit or loss, before taxes
Foreign currency translation	73,114,966	107,492,316	(3,686,549)
Gains (losses) from available-for-sale financial assets	(3,673)	(411)	1,840
Share of other comprehensive income from associates and joint ventures accounted for using the equity method			(1,490)
Gains (losses) from cash flow hedges	(160,828,497)	(244,271,689)	73,333,487
Adjustments from reclassification of cash flow hedges, transferred to profit or loss	21,654,376	22,364,834	24,225,474
Other comprehensive income (loss) that will be reclassified subsequently to profit or loss	(66,062,828)	(114,414,950)	93,872,762
Other comprehensive income (loss), before taxes	(73,840,032)	(114,377,069)	95,589,637
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	2,099,845	(10,228)	(463,556)
Income tax related to components of other comprehensive income that will not be reclassified subsequently to profit or loss	2,099,845	(10,228)	(463,556)
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	36,883,401	60,650,786	(25,701,599)
Income tax related to available-for-sale financial assets	992	111	(497)
Income tax related to components of other comprehensive income that will be reclassified subsequently to profit or loss	36,884,393	60,650,897	(25,702,096)
Total Other Comprehensive Income (Loss)	(34,855,794)	(53,736,400)	69,423,985
TOTAL COMPREHENSIVE INCOME	281,237,424	359,111,357	592,841,896
Comprehensive income attributable to:
Equity owners of Enel Chile	255,988,200	297,410,542	391,680,966
Non-controlling interests	$ 25,249,224	$ 61,700,815	$ 201,160,930

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - CLP ($) $ in Thousands	Allocated Capital	Treasury shares	Reserve for Exchange Differences in Translation	Reserve for Cash Flow Hedges	Reserve for Gains and Losses for Defined Benefit Plans	Reserve of Gains and Losses on Remeasuring Financial Assets at fair value of other comprehensive income	Amounts recognized in other comprehensive income and accumulated in equity related to non-current assets or groups of assets for disposal classified as held for sale	Other Miscellaneous Reserves	Other Reserves	Retained Earnings	Equity Attributable to Enel Chile	Non-controlling Interests	Total
Equity beginning balance at Dec. 31, 2016	$ 2,229,108,975		$ 9,222,933	$ (76,218,470)		$ 9,955	$ 1,632,724	$ (969,740,120)	$ (1,035,092,978)	$ 1,569,375,291	$ 2,763,391,288	$ 699,602,354	$ 3,462,993,642
Comprehensive income
Profit (loss)										349,382,642	349,382,642	174,035,269	523,417,911
Other comprehensive income			(2,246,550)	43,368,734	$ 1,174,811	1,329			42,298,324		42,298,324	27,125,661	69,423,985
TOTAL COMPREHENSIVE INCOME											391,680,966	201,160,930	592,841,896
Dividends										(168,327,161)	(168,327,161)	(94,944,701)	(263,271,862)
Increase (decrease) from other changes					(1,174,811)		(1,632,724)	(1,728,359)	(4,535,894)	1,174,811	(3,361,083)	(2,240,936)	(5,602,019)
Total changes in equity			(2,246,550)	43,368,734		1,329	(1,632,724)	(1,728,359)	37,762,430	182,230,292	219,992,722	103,975,293	323,968,015
Equity ending 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
Increase (decrease) through 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
Comprehensive income
Profit (loss)										361,709,937	361,709,937	51,137,820	412,847,757
Other comprehensive income			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
Issuance of equity	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								(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	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			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

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 [member]
Retained earnings	$ 664,470

Consolidated Statements of Cash

Consolidated Statements of Cash Flows, Direct - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Types of collection from operating activities
Collections from the sale of goods and services	$ 3,053,366,631	$ 3,037,830,501	$ 3,147,019,752
Collections from premiums and services, annual payments, and other obligations from policies held	30,131,403	9,201,388	6,808,382
Collections derived from leasing and subsequent sale of these assets	7,938,954
Other collections from operating activities	929,839	23,353,592	15,216,737
Types of payment in cash from operating activities
Payments to suppliers for goods and services	(1,923,705,670)	(1,921,809,622)	(2,068,346,327)
Payments to and on behalf of employees	(130,102,939)	(119,944,410)	(128,787,065)
Payments on premiums and services, annual payments, and other obligations from policies held	(16,828,690)	(15,704,586)	(15,466,609)
Payments for manufacturing or acquiring assets held to lease to others and subsequently to sell	(39,625,028)
Other payments for operating activities	(154,500,049)	(137,352,099)	(130,403,003)
Income taxes paid	(82,778,533)	(134,512,945)	(183,022,750)
Other outflows of cash, net	(1,114,199)	(5,536,297)	(7,405,397)
Net cash flows from operating activities	743,711,719	735,525,522	635,613,720
Cash flows from (used in) investing activities
Cash flows from the loss of control of subsidiaries or other businesses, net		(1,624,326,739)
Other collections from the sale of equity or debt instruments belonging to other entities			115,582,806
Other payments to acquire equity or debt instruments of other entities	(130,639)
Other payments to acquire stakes in joint ventures			(1,943,100)
Loans to related companies		(37,940,159)	(161,363,897)
Proceeds from the sale of property, plant and equipment	872,988	4,640,835	4,428,995
Purchases of property, plant and equipment	(300,346,362)	(300,538,836)	(266,029,921)
Purchases of intangible assets	(20,732,156)
Payments for future, forward, option and swap contracts	(7,551,080)	(1,475,713)	(7,808,837)
Collections from future, forward, option and swap contracts	2,737,887	352,734	835,105
Collections from related companies		76,307,192	161,363,898
Dividends received	6,455,840	1,520,979	879,884
Interest received	6,034,028	6,653,972	7,589,290
Other inflows (outflows) of cash	1,127,683	(6,753,959)
Net cash flows used in investing activities	(311,531,811)	(1,881,559,694)	(146,465,777)
Cash flows from (used in) financing activities
Payments proceeds from share Issuance		665,829,207
Payments for acquiring treasury shares		(72,388,009)
Total Amounts from long-term loans		1,565,782,604
Proceeds from long-term loans		1,565,782,604
Loans from related companies	283,831,505		150,000,000
Payments of loans	(315,323,464)	(819,525,929)	(5,534,483)
Payments on borrowings and financial lease liabilities	(4,498,202)	(1,889,685)	(2,592,237)
Payment of loans to related companies			(150,000,000)
Dividends paid	(236,478,649)	(231,392,743)	(260,803,055)
Interest paid	(134,429,754)	(116,540,891)	(43,816,959)
Other outflows of cash, net	(33,537,124)	(23,297,678)	(4,848,787)
Net cash flows used in financing activities	(440,435,688)	966,576,876	(317,595,521)
Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes	(8,255,780)	(179,457,296)	171,552,422
Effect of exchange rate changes on cash and cash equivalents
Effect of exchange rate changes on cash and cash equivalents	(1,231,644)	5,173,194	1,904,412
Net increase (decrease) in cash and cash equivalents	(9,487,424)	(174,284,102)	173,456,834
Cash and cash equivalents at beginning of year	245,171,924	419,456,026	245,999,192
Cash and cash equivalents at end of year	$ 235,684,500	$ 245,171,924	$ 419,456,026

Background and Business Activit

Background and Business Activities	12 Months Ended
	Dec. 31, 2019
BACKGROUND AND BUSINESS ACTIVITIES
Background and Business Activities	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 in the securities register of the Financial Market Commission of Chile (“Comisión para el Mercado Financiero” or “CMF”, formerly the Chilean Superintendence of Securities and Insurance, “Superintendencia de Valores y Seguros” or “SVS”) and since March 31, 2016 is registered with the Securities and Exchange Commission of the United States of America. 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 by way of “when-issued” trading from April 21, 2016 to April 26, 2017 and “regular-way” trading since April 27, 2016. Enel Chile is a subsidiary of Enel S.p.A., an entity that directly and indirectly owns a 61.93% equity interest. 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, the date its by-laws were amended in connection with the corporate reorganization of the Group. For tax purposes, the Company operates under Chilean tax identification number 76.536.353‑5. As of December 31, 2019, the Group had 2,148 employees. During the fiscal year ended December 31, 2019, the Group averaged a total of 2,142 employees (see Note 37). Enel Chile’s corporate purpose consists of exploring, developing, operating, generating, distributing, transporting, transforming and/or sale of energy in any of its forms or nature, directly or through other entities within Chile. Additionally, it is also engaged in investing and managing its investments in its subsidiaries and associates, whose activities include the generation, transmission, distribution or selling of electrical energy, 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, 2019
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Basis of Presentation of the Consolidated Financial Statements	2. 2.1 Basis of preparation The accompanying consolidated financial statements as of December 31, 2019 of Enel Chile approved by the Company’s Board of Directors at its meeting held on April 29, 2020, 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, 2019 and 2018, and the results of their operations, changes in their equity and their cash flows for the year ended December 31, 2019, 2018 and 2017 and corresponding 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. These consolidated financial statements are presented in thousands of Chilean pesos (unless expressly stated otherwise) s the Chilean peso is the functional currency of the Company and the presentation currency of the Group. 2.2 New accounting pronouncements a) The following accounting pronouncements have been adopted by the Group effective as of January 1, 2019: i. New Standards and Interpretations New Standards and Interpretations Mandatory IFRS 16: Leases Annual periods beginning on or after January 1, 2019 IFRIC 23: Uncertainty over Income Tax Treatments Annual periods beginning on or after January 1, 2019 · IFRS 16 Leases In January 2016, the IASB issued IFRS 16 which establishes recognition, measurement, presentation and disclosure principles for lease agreements. IFRS 16 supersedes IAS 17 Leases and its interpretations: IFRIC 4 Determining whether an Arrangement contains a Lease , SIC-15 Operating Leases—Incentives and SIC-27 Evaluating the Substance of Transactions Involving the Legal Form of a Lease . The standard became effective on January 1, 2019. IFRS 16 is based on the concept of control in determining whether a contract is, or contains, a lease. In relation to the accounting treatment for a lessee and a lessor, the new standard states the following: i) Lessee accounting: IFRS 16 requires lessees to account for all leases under a single model, similar to accounting for finance leases under IAS 17. As a result, at the date of commencement of a lease, the lessee recognizes on the statement of financial position a right of use asset and a lease liability for the future lease payments. Subsequent to initial recognition it will recognize in the statement of profit or loss the depreciation expense of the asset separately from the interest related to the liability for leases. The standard provides two voluntary recognition exceptions for low-value asset leases and short-term leases (equal to or less than 12 months). ii) Lessor accounting: does not change substantially from the model established for IAS 17. The lessor must classify leases as operating or financial leases under the same principles of the previous standard. The implementation of IFRS 16 by the Group required the application of judgment and assumptions, which are summarized as follows: - Analysis of the lease contracts within the scope of the standard. This analysis included not only the contracts in which the Group’s companies act as a lessee, but also the contracts for the rendering of services and the contracts in which the Group companies act as a lessor. - Estimate of the lease terms. This is based on the non-cancellable period and the periods covered by the renewal options, the exercise of which is in the power of Enel Chile and is considered reasonably certain. - Estimate of the discount rate to calculate the present value of the lease payments. This is equal to the lessee’s incremental borrowing rate when the interest rate implicit in the lease cannot be easily determined. For the transition, in the calculation of the effects as of January 1, 2019, the Group used the lessee’s incremental borrowing rate, defined as the interest rate that the Group would have to pay to borrow over a similar term, and with a similar security, the funds necessary to obtain an asset of a value similar to the right-of-use asset in a similar economic environment. The Group decided to use certain exemptions from application of the standard, relating to lease contracts with a maturity of less than 12 months or that have underlying assets of low individual value, such as the lease of certain office equipment (personal computers, printers and photocopiers). See Notes 3.f and 18.d. For the transition of the new standard, the Group applied the following practical expedients: - Not to re-evaluate if a contract is, or contains, a lease. Instead, the Group applied the standard to contracts that were previously identified as leases by applying IAS 17 and IFRIC 4. Therefore, the Group did not apply the standard to contracts that were not previously identified as containing a lease. - Apply the standard retrospectively with the cumulative effect of the initial application. This means not restating comparative periods and presenting the cumulative effect of the initial application of the standard as an adjustment to the opening balance of retained earnings as of January 1, 2019. - Recognize right-of-use assets on the initial date of application for an amount equal to the lease liabilities, adjusted by the amount of any advance or accumulated lease payments recognized in the statement of financial position immediately before the initial date of application. The new standard has an impact on all Group entities that have lease contracts. The main issues that arise are those related to the lease of land, buildings and automobiles. As a result of the change in the accounting model for lessees, the Group recorded an increase in current and non-current liabilities for a total of ThCh$28,814,142 as of January 1, 2019, for the recognition of lease liabilities, and an increase in non-current assets for the same amount, as a result of the recognition of the right of use assets in such contracts. It should be noted that the application of the Standard did not result in any effect being recognized in the opening balance of retained earnings as of January 1, 2019. For further information see Notes 18.c and 21. The weighted average of the incremental borrowing rate used to record lease liabilities as of January 1, 2019, was 5.5%. The reconciliation between the total amount of the minimum future payments under operating lease agreements according to IAS 17 and the finance lease liability recorded as of January 1, 2019, is as follows: ThCh$ Minimum future payments of operating leases as of 12-31-2018 Effect of the discount at the incremental borrowing rate Minimum payments for short-term leases, at the transition date Lease liabilities During the year ended December 31, 2019, the Group recognized an increase of ThCh$1,191,645 in financial expenses associated with the new lease liabilities and an increase of ThCh$2,347,661 in depreciation associated with the right of use assets. · IFRIC 23 – Uncertainty over Income Tax Treatments In June 2017, the IASB issued IFRIC 23 to clarify the application of recognition and measurement requirements in IAS 12, Income Taxes , when there is uncertainty over income tax treatments. The Interpretation specifically addresses the following: whether an entity considers uncertain tax treatments separately; the assumptions an entity makes about the examination of tax treatments by taxation authorities; how an entity determines taxable profit (loss), tax bases, unused tax losses, unused tax credits and tax rates; and how an entity considers changes in facts and circumstances. Uncertainty over income tax treatments can affect both current and deferred taxes. Recognizing the effects of uncertainty depends on whether the tax authority is likely or not to accept an uncertain tax treatment, assuming that the tax authority will examine the amounts that it is entitled to examine and has full knowledge of all the related information. This interpretation became effective on January 1, 2019. The application of IFRIC 23 did not have a material impact on the Group’s consolidated financial statements. ii. Amendments and Improvements Mandatory Amendment to IFRS 9: Prepayment Features with Negative Compensation Annual periods beginning on or after January 1, 2019 Amendment to IAS 28: Long-term interests in Associates and Joint Ventures Annual periods beginning on or after January 1, 2019 Annual Improvements to IFRS: 2015 - 2017 Cycle (IFRS 3, IFRS 11, IAS 12 and IAS 23) Annual periods beginning on or after January 1, 2019 Amendment to IAS 19: Plan Amendment, Curtailment or Settlement Annual periods beginning on or after January 1, 2019 · Amendment to IFRS 9: Prepayment Features with Negative Compensation This amendment was issued on October 12, 2017 and amends the existing requirements in IFRS 9 Financial Instruments regarding termination rights in order to allow measurement of financial assets at amortized cost (or, depending on the business model, at fair value through other comprehensive income) even in the case of negative compensation prepayments. Under IFRS 9, a debt instrument can be measured at amortized cost or at fair value through profit or loss in other comprehensive income, provided that the contractual cash flows are only principal and interest payments on the outstanding principal and the instrument is carried out within the business model for that classification. The amendments to IFRS 9 are intended to clarify that a financial asset meets the criterion of “only principal payments plus interest”, regardless of the event or circumstance that causes the early termination of the contract or of which party pays or receives reasonable compensation for the early termination of the contract. The amendments to IFRS 9 should be applied when the prepayment is close to the unpaid amounts of principal and interest in such a way that it reflects the change in the benchmark interest rate. This implies that prepayments at fair value or for an amount that includes the fair value of the cost to terminate an associated hedging instrument will normally meet the criterion of only principal payments plus interest, only if other elements of the change in fair value, such as the effects of credit risk or liquidity, are minimal. The application of this amendment, as of January 1, 2019, did not have a material impact on the Group’s consolidated financial statements. · Amendments to IAS 28: Long-term interests in Associates and Joint Ventures This amendment clarifies that IFRS 9 is applicable to an entity's long-term interests in an associate or joint venture to which the equity method is not applied. This clarification is relevant because it implies that the expected credit loss model, described in IFRS 9, applies to these long-term interests. The application of this amendment, as of January 1, 2019. , did not have a material impact on the Group’s consolidated financial statements. · Annual Improvements to IFRS: 2015 - 2017 Cycle (IFRS 3, IFRS 11, IAS 12 and IAS 23). IFRS 3 Business Combinations and IFRS 11 Joint Arrangements : it clarifies the accounting for increases in ownership interest in a joint operation that meets the definition of a business. If a party maintains (or obtains) joint control, the previously held ownership interest is not remeasured. If a party obtains control, the transaction is a business combination archivied in stages and the acquiring party remeasures the previously held ownership interest in the assets and liabilities of a joint operation, at fair value. The IAS 12 Income Taxes amendment: it clarifies that the income tax on dividends is linked more directly to past transactions or events that generated distributable profits than to distributions to shareholders. Therefore, an entity recognizes income tax on dividends in profit or loss, other comprehensive income or equity according to where the entity originally recognized those past transactions or past events. IAS 23 Borrowing Costs : it clarifies that loans that were specifically intended to finance qualifying assets become part of the entity's general loan pool for the purpose of calculating the capitalization rate, when substantially all of the activities necessary to prepare the asset for its intended use or sale are complete. The application of these improvements, as of January 1, 2019 did not have a material impact on the Group’s consolidated financial statements. · Amendment to IAS 19: Plan Amendment, Curtailment or Settlement The amendment to IAS 19 Employee Benefit s, issued in February 2018, addresses the accounting when a plan amendment, curtailment or settlement occurs during a reporting period. The amendment specifies that an entity is required to determine the current service cost and net interest for the remainder of the annual period using the actuarial assumptions used to remeasure the benefit liability (asset) and plan assets of the plan after the plan amendment, curtailment or settlement. The amendment to IAS 19 also clarifies that an entity first determines any past service cost, or a gain or loss on settlement, without considering the effect of the asset ceiling. This amount is recognized in profit or loss. An entity then determines the effect of the asset ceiling after the plan amendment, curtailment or settlement. Any change in that effect, excluding amounts included in net interest, is recognized in other comprehensive income. This clarification provides that entities might have to recognize a past service cost, or a gain or loss on settlement, that reduces a surplus that was not recognized before. Changes in the effect of the asset ceiling are not netted against such amounts. The amendments to IAS 19 apply to a plan amendment, curtailment or settlement that occurred on or after January 1, 2019. The Group did not have any of those events during the year ended December 31, 2019. b) Accounting pronouncements with application effective as of January 1, 2020 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 is not mandatorily effective: i. New Standards and Interpretations 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 Amendment to IAS 1 and IAS 8: Definition of material or materiality Annual periods beginning on or after January 1, 2020 Amendments to IFRS 9, IAS 39 and IFRS 7: Reform of the reference interest rates. 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 some 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 affected IFRSs in order to update references to the new Conceptual Framework. The revised Conceptual Framework and the Amendments to the References to the Conceptual Framework in IFRS Standards take effect on January 1, 2020. Early application is allowed if all the changes made are adopted at the same time. Management estimates that the application of the Revised Conceptual Framework will not generate significant impacts on 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 business, in order to help entities to 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 is applicable prospectively to business combinations and acquisitions of assets, the acquisition date of which is from January 1, 2020. Earlier application is permitted. · Amendments to IAS 1 and IAS 8 Definition of Material or Materiality 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 IFRS. 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 will be applicable prospectively for annual periods beginning on or after January 1, 2020. Earlier application is permitted. · Amendments to IFRS 9, IAS 39 and IFRS 7 – Interest rate benchmark reform. On September 26, 2019, the IASB issued amendments to IFRS 9 Financial Instruments , 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 offer 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). The amendments to IFRS 9: The amendments 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. Application of the reliefs is mandatory. 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 IBOR reform. A fourth relief provides that, for a benchmark component of interest rate risk that is affected by IBOR reform, the requirement that the risk component is separately identifiable need be met only at the inception of the hedging relationship. Where hedging instruments and hedged items may be added to or removed from an open portfolio in a continuous hedging strategy, the separately identifiable requirement need only be met when hedged items are initially designated within the hedging relationship. The reliefs continue indefinitely in the absence of any of the events described in the amendments. When an entity designates a group of items as the hedged item, the requirements for when the reliefs cease are applied separately to each individual item within the designated group of items. The amendments also introduce specific disclosure requirements for hedging relationships to which the reliefs are applied. The amendments are applicable for annual periods beginning on or after January 1, 2020. Earlier application is permitted. Management is evaluating the potential impact of the application of these amendments on the consolidated financial statements of the Group. 2.3 Responsibility for the information, judgments and estimates provided 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 important 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 regulations related to the Electric Sector, whose ultimate economic effects will be determined by the resolutions of the relevant agencies (see Notes 4 and 11). · 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 various subsidiaries of the Group that will be reported to the respective tax authorities in the future, and that have been used as the basis for recording the various 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). · 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). · Estimation of the company's incremental borrowing rate (IBR), to measure lease liabilities, if the interest rate implicit in the lease cannot be readily determined. The Group estimates the IBR using observable inputs (such as market interest rates) when available and is required to make certain entity-specific estimates (such as for subsidiaries that do not enter into financing transactions) or when they need to be adjusted to reflect the terms and conditions of the lease (for example, when leases are not in the subsidiary’s functional currency) (see Note 3.f). Although these judgments and estimates have been based on the best available information as of the issuance date 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 and estimation in the corresponding 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. Enel Chile has power over its subsidiaries when it holds the majority of the substantive voting rights or, should that not be the case, when it has rights granting the practical ability to direct the entities’ relevant activities, that is, the activities that significantly affect the subsidiary’s results. 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 elements of control listed above. Subsidiaries are consolidated as described in Note 2.7. The following are the entities in which the Group has the ability to exercise control and are therefore included in these consolidated financial statements: Percentage of control at 12-31-2019 Percentage of control at 12-31-2018 Taxpayer ID No. Company Currency Direct Indirect Total Direct Indirect Total 76.722.488-5 Empresa de Trasmisión Chena S.A. Chilean Peso — 100.00% — 96.783.910-8 Empresa Eléctrica de Colina Ltda. Chilean Peso — — 96.504.980-0 Empresa Eléctrica Pehuenche S.A. Chilean Peso — — 96.800.570-7 Enel Distribución Chile S.A. Chilean Peso — — 91.081.000-6 Enel Generación Chile S.A. Chilean Peso — — 78.932.860-9 GasAtacama Chile S.A. * Chilean Peso — — — 2.63% 78.952.420-3 Gasoducto Atacama Argentina S.A.* Chilean Peso — — — — 96.800.460-3 Luz Andes Ltda. Chilean Peso — — 77.047.280-6 Sociedad Agrícola de Cameros Ltda. Chilean Peso — — 96.920.110-0 Enel Green Power Chile Ltda.** American Dollar — — 96.524.140-K Empresa Eléctrica Panguipulli S.A.** American Dollar 76.306.985-0 Diego de Almagro Matriz SpA** American Dollar — — 76.179.024-2 Parque Eólico Tal Tal SpA** American Dollar 96.971.330-6 Geotérmica del Norte S.A.** American Dollar 99.577.350-3 Empresa Nacional de Geotermia S.A.** American Dollar — — 76.052.206-6 Parque Eólico Valle de los Vientos SpA** American Dollar 76.126.507-5 Parque Talinay Oriente S.A.** American Dollar — — 76.321.458-3 Almeyda Solar SpA** American Dollar — — 76.412.562-2 Enel Green Power del Sur SpA** American Dollar — — 76.924.079-9 Enel X Chile SpA*** Chilean Peso — — (*) see section 2.4.1 (i)below (**) see section 2.4.1 (ii) below. (***) see section 2.4.1 (iii) below 2.4.1 Changes in the scope of consolidation (i) Gasoducto GasAtacama Argentina S.A. was taken over by GasAtacama Chile S.A. on September 1, 2019, with the latter as the legal successor. Subsequently, on October 1, 2019, GasAtacama Chile S.A. was taken over 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 transanction consisted of Enel Generación Chile S.A.’s acquisition of 2.63% of the shares in 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., absorbing it through a merger, and becoming its legal successor. (ii) On April 2, 2018, renewable energy assets held in Chile by Enel Green Power Latin Americas S.A. ("EGPL") were incorporated into Enel Chile (see Note 6). The EGPL group comprises the following companies. - - - - - - - - - - (i) On September 7, 2018, the subsidiary Enel X Chile SpA was incorporated. The purpose of this subsidiary, among others, is to develop, implement and sell products and services related to energy that incorporate innovation, state-of-the-art technology and trends of the future, other than the electricity distribution under concession and their related services, whether or not they are priced. 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 financial and operational policy decisions of the associate but is not 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 those cases in which the Group has more than 20% of the voting power of the investee Associates are accounted for under equity method as described in Note 3.i. The detail of the companies that qualify as associates is the following: Ownership Interest at Ownership Interest at Taxpayer ID No. Company Currency Direct Indirect Total Direct Indirect Total 76.418.940-K GNL Chile S.A. American Dollar — 33.33% 33.33% — 33.33% 33.33% 76.364.085-K Energia Marina SpA Chilean peso — 25.00% 25.00% — 25.00% 25.00% - 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, in other words, 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, 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 interest in the contractually named assets and liabilities in the joint operation. In determining the type of joint arrangement in which it is involved, the management of the Group 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, other facts and circumstances. If facts and circumstances change, the Group reassesses whether the type of joint arrangement in which it is involved has changed. The detail of the companies that qualify as Ownership Interest at Ownership Interest at Taxpayer ID No. Company Currency Direct Indirect Total Direct Indirect Total 76.091.595-5 Aysén Energía S.A. (1) Chilean peso — — — — 51.00% 51.00% 76.041.891-9 Aysén Transmisión S.A. (1) Chilean peso — — — — 51.00% 51.00% 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chilean peso — 50.00% 50.00% — 50.00% 50.00% (1) The companies Aysén Energía S.A. and Aysén Transmission S.A. were liquidated on June 24, 2019. Currently, Enel Chile is not involved in any joint arrangement that qualifies as a joint operation. 2.7 Basis of consolidation and business combinations The subsidiaries are consolidated and all their assets, liabilities, revenues, expenses, and cash flows are included in the consolidated financial statements once the adjustments and eliminations from intra-group transactions have been made. The comprehensive income of subsidiaries is included in the consolidated statement of comprehensive income from the date when the parent company obtains control of the subsidiary and until the date on which it loses control of the subsidiary. The operations of the parent company and its subsidiaries have been consolidated under the following basic principles: 1. At the date the parent obtains control, the subsidiary’s assets acquired and its liabilities assumed are recorded at fair value, except for certain assets and liabilities that are recorded using valuation principles established in other IFRS standards. If the fair value of the consideration transferred plus the fair value of any non-controlling interests exceeds the fair value of the net assets acquired, this difference is recorded as goodwill. In the case of a bargain purchase, the resulting gain i

Accounting Policies.

Accounting Policies.	12 Months Ended
	Dec. 31, 2019
ACCOUNTING POLICIES.
Accounting Policies Applied	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 measured, with general character, at acquisition cost, net of accumulated depreciation and any impairment losses they may have experienced. In addition to the price paid to acquire each item, the cost also includes, where applicable, the following concepts: · Financing expenses accrued during the construction period that are directly attributable to the acquisition, construction, or production of qualified 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 one that exceeds twelve months. The interest rate used is that of the specific financing or, if none exists, the weighted average financing rate of the company carrying out the investment. (see Note 18.b.1). · Employee expenses directly related to construction in progress. (see Note 18.b.2). · Future disbursements that the Group will have to incur to close its facilities are added to the value of the asset at fair value, recognizing the corresponding provision for dismantling or restoration. The Group reviews its estimate of these future disbursements on an annual basis, increasing or decreasing the value of the asset based on the results of this estimate (see Note 25). Items for construction work in progress 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 longer useful life are capitalized as increasing the cost of the corresponding 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 for the respective assets, derecognizing the replaced or overhauled components. Expenditures for periodic maintenance, conservation 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 table are the main categories of property, plant and equipment with their respective estimated useful lives: Categories of Property, plant and equipment Years of estimated Buildings 10 – 60 Plant and equipment 6 – 65 IT equipment 3 – 15 Fixtures and fittings 2 – 35 Motor vehicles 5 – 10 Additionally, the following table sets forth more details on the useful lives of plant and equipment items: Categories of Property, plant and equipment Years of estimated Generating facilities: Hydroelectric plants Civil engineering works 10 – 65 Electromechanical equipment 10 – 45 Fuel oil/coal-fired power plants 20 – 40 Combined cycle power plants 10 – 25 Renewable energy power plants 20 Transmission and distribution facilities: 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 transport facilities 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 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 that arise from the sale or disposal of items of Property, plant and equipment are recognized as “Other gains (losses)” in the comprehensive income statement and are calculated by deducting the net carrying amount of the asset and any sales expenses from the amount received in the sale. b) Investment property “Investment property” includes basically land and buildings that are kept for the purpose of obtaining profits in future sales or lease arrangements. Investment property is measured at acquisition cost, net of accumulated depreciation and any impairment losses they may have experienced. Investment properties, excluding land, are depreciated by distributing the cost of the various elements that make them up 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 that arise from the sale or disposal of items of investment property are recognized as “Other gains (losses)” in the comprehensive income statement and are calculated by deducting the net carrying amount of the asset and any sales costs from the consideration received in the sale.The breakdown of the fair value of investment property is detailed in Note 19. c) Goodwill Goodwill arising from business combinations, and reflected upon consolidation, represents the excess value of the consideration paid plus the amount of any non-controlling interests over the Group’s share of the net value of the assets acquired and liabilities assumed, measured at fair value at the acquisition date. If the accounting for a business combination is completed within the following year after the acquisition date, and so is the goodwill determination, the entity recognizes the corresponding adjustments to the provisional amounts as if the accounting for the business combination had been completed at the acquisition date. If the accounting for a business combination is completed within the following year after the acquisition date, and thus the goodwill determination as well, the entity recognizes the corresponding adjustments to the provisional amounts as if the accounting for the business combination had been completed at the acquisition date (see Note 2.7.1). Goodwill arising from acquisition of companies with functional currencies other than the Chilean peso is measured in the functional currency of the acquired company and translated to Chilean pesos using the exchange rate effective as of the date of the statement of financial position. Goodwill is not amortized; instead, at the end of each reporting period or when there are indicators that an impairment might have occurred, the Group estimates whether any impairment loss has reduced its recoverable amount to an amount less than the carrying amount and, if so, an impairment loss is immediately recognized in profit or loss (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 they may have experienced. Intangible assets are amortized on a straight line basis during their useful lives, starting from the date when they are ready for use, except for those with an indefinite useful life, which are not amortized. As of December 31, 2019 and 2018, there are no significant intangible assets with an indefinite useful life. An intangible asset is derecognized on disposal, or when no future economic benefits are expected from use or disposal. Gains or losses arising from sales of intangible assets are recognized in profit or loss for the period and are determined as the difference between the sale value and the net book value of the asset. The criteria for recognizing these assets’ impairment losses and, if applicable, recovery of impairment losses recorded in previous periods are explained in Note 3.e 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 Other intangible assets correspond to computer software, water rights, and easements. They are initially recognized at acquisition or production cost and are subsequently measured at cost less 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, therefore, are not amortized. e) Impairment of non-financial assets During the year, and principally 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 exist, the Group estimates the recoverable amount of that asset to determine the amount of the impairment loss. In the case of 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, in the case of CGU’s to which goodwill or intangible assets with indefinite useful lives have been allocated, a recoverability analysis is performed routinely at each period end. The criteria used to identify the CGUs are based, in line with the strategic and operational vision of management, on the specific characteristics of the business, on the operating standards and regulations of the market in which the Group operates and on the 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, the Group uses value in use criteria in practically all cases. To estimate value in use, the Group prepares future pre-tax cash flow projections based on the most recent budgets available. These budgets incorporate management’s best estimates of a CGU’s revenue and costs using sector projections, past experience and future expectations. In general, these projections cover the next five 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 and country in which the Group operates. As of December 31, 2019, the growth rate used to extrapolate the projections was between 2% and 3%. 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 minimum and maximum pre-tax discount rates applied in the period ended December 31, 2019 expressed in nominal terms were 7.7% and 10.7%, respectively. The Company’s approach to allocate value to each key element used to project cash flows, considers: - Evolution of demand: the growth estimate has been calculated based on the projected increase of the Gross Domestic Product (GDP), in addition to other assumptions used by the Company regarding the evolution of consumption. - Energy purchase and sale prices: based on specifically developed internal projection models. The price of the planned “pool” is estimated by considering a series of determining factors, such as the various technologies’ costs and productions and electricity 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 ones, and therefore the projections include adequate application of the current standards and those that are currently in development, and those expected to be valid during the projected period. - Installed capacity: in the estimate of the Group’s installed capacity, the existing facilities are taken into account, as well as the plans for both increasing and closing down capacity. 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. The necessary investments are taken into account to maintain the installed capacity in appropriate operating conditions. - Hydrology and NCRE: the projections are made from historical series of meteorological conditions and, based on them, an average year is projected. - Fuel costs: to estimate fuel costs, existing supply contracts are taken into account and long-term projections of oil, gas or coal prices are made, based on forward markets and available analyst estimates. - Fixed costs: they are projected considering the foreseen level of business, 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 of digitalization of internal processes. - External sources are always considered to check against them hypotheses related to the macroeconomic environment such as price developments, GDP growth, demand, inflation, interest rates and exchange rates, among others. Past experience has demonstrated the reliability of the Company's projections, which allows the key assumptions to be based on historical information. During 2019 the deviations observed with respect to the expectations established in the projections used to conduct the impairment tests as of December 31, 2018 have not been significant and the cash flows generated in 2019 were similar to those expected for that year, with the exception of the effect of the agreement signed in June 2019 between Enel Generación Chile and the Ministry of Energy for the progressive withdrawal of generating units running on coal (see Note 18.e.x) and the effect of Law 21,185, approved in October 2019, which establishes the mechanism for stabilizing electricity prices for customers subject to rate regulation (see Notes 4 and 11). If the recoverable amount of the CGU is less than the net carrying amount of the asset, the corresponding impairment loss is recognized for the difference, and charged to “Reversal of impairment loss (impairment loss) 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 its fair value less costs of disposal, or its value in use, a negative amount may not 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 and crediting 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. In the case of goodwill, impairment losses are not reversed. f) Leases In order to determine whether an arrangement is, or contains, a lease, the Group assesses the economic substance of the agreement, assessing whether the agreement transfers 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. When the Group acts as 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 new 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 if there is reasonable certainty that the lessee will acquire ownership of the asset at the end of the lease. If there is no such certainty, the asset is depreciated over the shorter of the asset’s useful life or the lease term. The same criteria detailed in Note 3.e are applied to determine whether the right-of-use asset has become impaired. The lease liability is 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 IBR is the rate of interest that the Group would have to pay to borrow over a similar term, and with a similar security, the funds necessary to obtain an asset of a similar value to the right-of-use asset in a similar economic environment. The lease payments included in the measurement of the liability comprise: (i) fixed payments, less any lease incentive receivable; (ii) variable lease payments that depend on an index or rate; (iii) residual value guarantees; (iv) purchase option exercise price if it is reasonably certain the Group will exercise that option ; and (v) lease termination penalties, if any. After the start 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 exempted from the application of the recognition criteria described above, recording the payments associated with the lease as expense on a straight-line basis over the term of the lease. When the Group acts as lessor, it classifies at the inception of the agreement the lease as operating or finance, based on the substance of the transaction. Leases in which all the risks and rewards inherent to the ownership to the underlying asset are substantially transferred are classified as finance leases. All other leases are classified as operating leases. In the case of finance leases, at the inception date, the company recognizes in its statement of financial position the assets held under finance leases and presents them as an account receivable, equal in value 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. In the case of operating leases, lease payments are recognized as income on a straight-line basis over the lease term, unless some other systematic basis of allocation is more representative. The initial direct costs incurred in obtaining an operating lease are added to the book value 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 15) and non-current assets and disposal groups held for sale or distribution to owners, into three categories (see Note 3.k): · Amortized cost: This category includes the financial assets that meet the following conditions (i) the business model that supports it aims to maintain the financial assets to obtain the contractual cash flows, and (ii) the contractual terms of 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: accounts receivable, loans and cash equivalents. These 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 rate method. The effective interest rate method is a method of 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 expenses 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. · 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 comply with the SPPI criterion. These investments are recognized in the consolidated statement of financial position at fair value when it is possible to determine reliably. In the case of holdings in unlisted companies or companies with low liquidity, it is usually not possible to determine the fair value reliably. Therefore, when this circumstance 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 such time as the disposal of these financial assets takes place, at which time the accumulated amount in this section is fully posted in the result for the period with the exception of investments in equity instruments where the accumulated other comprehensive balance is reclassified to retained earnings. 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 can not be considered as temporary, the difference is recorded directly in the losses for the period · 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 administered and assessed according to the fair value criterion, and the financial assets that do not meet the conditions to be classified in the two above categories. They are valued at fair value in the consolidated statement of financial position and any changes in value are recorded directly in profit or loss 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 to cash and are subject to insignificant risk of changes in value. g.3) Impairment of financial assets Under IFRS 9, the Group applies an impairment model based on expected credit losses, based on the Group's past history, existing market conditions, and prospective estimates at the end of each reporting period. The new impairment model is applied to financial assets measured at amortized cost and those measured at fair value through other comprehensive income, except for investments in equity instruments. The expected credit loss, determined considering Probability of Default (PD), Loss Given Default (LGD) and Exposure at Default (EAD), is the difference between all cash flows that are owed under the contract and all the cash flows that are expected to be received (that is, all cash deficiencies), discounted at the original effective interest rate. 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 date of issuance of the financial statements the credit risk has not increased significantly, the impairment losses are measured by reference 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 under the general approach is performed on an individual basis. · Simplified approach: the Group applies a simplified approach for trade receivables, contract assets and lease receivables so that the impairment provision is always recognized in reference to the lifetime expected credit losses for the asset. This is the Group’s most applied approach since trade receivables represent the main financial asset of Enel Chile and its subsidiaries. For trade accounts receivable, contractual assets and accounts receivable for lease, 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 client portfolios in terms of credit risk, maturity information and recovery rates. A specific definition of default is considered for each group. - Analytical or individual evaluation: if accounts receivable are considered individually significant by Management, and there is specific information on any significant increase in credit risk, the Group applies an individual evaluation of accounts receivable. For the individual evaluation, the PD is obtained mainly from an external provider. On the basis of the reference market and the regulatory context of the sector, as well as the recovery expectations after 90 days, for such accounts receivable, the Group mainly applies a default definition of 180 days of maturity to determine the 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 old are generally not considered in default. To measure the expected credit losses collectively, the Group considers the following assumptions: - PD: average default estimate, calculated for each group of trade accounts receivable, 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 the date of report, net of cash deposits, including invoices issued, but not due and invoices to be issued. Based on specific evaluations of 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 Financial liabilities, with general character, are recognized based on cash received, net of any costs incurred in the transaction. In subsequent periods, these obligations are measured at their amortized cost using the effective interest rate 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 variable 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 a variable interest rate, i.e., each coupon is established at the beginning of each period based on the reference 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, the positive fair value is recorded in “Trade and other receivables,” and negative fair values are recorded in “Trade and other liabilities”. Changes in fair value are recognized directly in profit or loss, except when the derivative has been designated for hedge accounting purposes as a hedge instrument (in a cash flow hedge) and all of the conditions for applying hedge accounting established by IFRS are met, including that the hedge be highly effective. In this case, changes are recognized as follows: · Fair value hedges: The underlying portion for which the risk is being hedged (hedged risk) and the hedge instrument are measured at fair value, and any changes in value of both items are recognized in the consolidated statement of comprehensive income by offsetting the effects in the same comprehensive income statement account. · 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 known as “Reserve for cash flow hedges”. The cumulative loss or gain in this reserve 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 inc

Sector Regulation and Electrici

Sector Regulation and Electricity System Operations	12 Months Ended
	Dec. 31, 2019
SECTOR REGULATION AND ELECTRICITY SYSTEM OPERATIONS
Disclosure Of Sector Regulations And Electricity System Operations Explanatory	4. SECTOR REGULATION AND ELECTRICITY SYSTEM OPERATIONS. a) Regulatory framework: The electricity sector is regulated by the General Law of Electrical Services No. 20,018 (Chilean Electricity Law), also known as DFL No. 1 of 1982, of the Ministry of Mining, whose compiled and coordinated text was established in DFL No. 4 issued in 2006 by the Ministry of Economy (the Electricity Law), as well as by an associated Regulation (D.S. No. 327 issued in 1998). Three government bodies are primarily responsible for enforcing this law: the National Energy Commission (CNE in its Spanish acronym), which has the authority to propose regulated tariffs (node prices) and to draw up indicative plans for the construction of new generating units; the Superintendency of Electricity and Fuels (SEF), which supervises and oversees compliance with the laws, regulations, and technical standards that govern the generation, transmission, and distribution of electricity, as well as liquid fuels, and gas; and the Ministry of Energy, which is responsible for proposing and guiding public policies on energy matters. It also oversees the SEF, the CNE, and the Chilean Commission for Nuclear Energy (CChEN in its Spanish acronym), thus strengthening coordination and allowing for an integrated view of the energy sector. The Ministry of Energy also includes the Agency for Energy Efficiency and the National Center for Innovation and Development of Sustainable Energy ( Centro Nacional para la Innovación y Fomento de las Energías Sustentables, or CIFES). The Chilean Electricity Law has also established a Panel of Experts whose main task is to resolve potential discrepancies among the participants in the electricity market, including electricity companies, system operators, regulators, etc. From a physical point of view, the Chilean power sector is divided into three electrical grids: the Sistema Electrico Nacional (SEN) and two separate medium-size grids in southern Chile, one in Aysén and the other in Magallanes. The SEN was incorporated in November 2017 through the interconnection of the Sistema Interconectado Central (SIC) and the Sistema Interconectado del Norte Grande (SING). Prior to the interconnection, the SIC was the main electrical grid, running 2,400 km. longitudinally and connecting the country from Taltal in the north, to Quellón on the island of Chiloé in the south. The SING covered the northern part of the country, from Arica down to Coloso, covering a length of about 700 km. The electricity industry is organized into three business activities: generation, transmission, and distribution, all operating in an interconnected and coordinated manner, and whose main purpose is to supply electrical energy to the market at minimum cost while maintaining the quality and safety service standards required by the electrical regulations. As essential services, the power transmission and distribution businesses are natural monopolies; these segments are regulated as such by the Chilean Electricity Law, which requires free access to networks and regulates tariffs. Under the Chilean Electricity Law, the electricity market coordinates their operations through a centralizing operating agent, the Coordinador Eléctrico Nacional (CEN), in order to operate the system at minimum cost while maintaining reliable service, and the SEN . The CEN plans and operates the systems, including the calculation of the so-called “marginal cost,” which is the price assigned to energy transfers among power generating companies. Consumers are classified according to the size of their demand as regulated or unregulated clients. Regulated customers are those customers who have a connected capacity of less than 5,000 kW. Without prejudice to this, customers with power connected between 500 kW and 5,000 kW may opt for an unregulated or regulated rate regime. Limits on integration and concentration Chile has legislation in effect that defends free competition and, together with specific regulations that apply to the electricity market, defines criteria to avoid certain levels of economic concentration and/or abusive market practices. In principle, the regulator allows the participation of companies in different activities (e.g. generation, distribution, and commercialization) as long as there is an adequate separation of each activity, for both accounting and corporate purposes. Nevertheless, most of the restrictions imposed involve the transmission sector mainly due to its nature and the need to guarantee adequate access to all agents. The Chilean Electricity Law establishes limits for participation of generation or distribution companies in the Trunk Transmission Systems, and prohibits participation of Trunk Transmission Systems’ companies in the generation and distribution segment. a.1 Generation Segment Generation companies must comply with the operation plan of the CEN. However, each generation company is free to decide whether to sell its energy to regulated or unregulated customers. Any surplus or deficit between a company’s sales to its customers and its energy supply is sold to, or purchased from, other generators at the spot market price. A generation company may have the following types of customers: (i) Unregulated customers: Those customers, mainly industrial and mining companies, with a connected capacity higher than 5,000 kW. These customers can freely negotiate prices for electrical supply with generators and/or distributors. Those customers with connected capacity between 500 and 5,000 kW have the option to contract energy at prices agreed upon with their suppliers or be subject to regulated prices, with a minimum term of at least four years under each pricing system. (ii) Distribution companies that supply power to regulated customers: Participation in public tenders regulated by the CNE for the supply to their unregulated customers through bilateral contracts. (iii) Other Generating Companies: The relationship between generating companies could occur through bilateral contracts or through Spot Market or short-term transfers. The latter correspond to energy and power transactions between generating companies that result from the coordination performed by the CEN to achieve the economic operation of the system; the excesses (deficits) of its production in relation to its commercial commitments are transferred through sales (purchases) to the other part of the system generators, valuing the energy at marginal cost and the power at the corresponding node price fixed every six months by the authority. In Chile, the capacity that must be paid to each generator depends on an annual calculation performed by the CEN to determine the sufficiency capacity of each power plant, which is not the same as the dispatched capacity. Non-Conventional Renewable Energy Law No. 20,257 was enacted in April of 2008 to encourage the use of Non-Conventional Renewable Energy (NCRE). The principal aspect of this law is that at least 5% of the energy sold by generation companies to their customers must come from renewable sources between years 2010 and 2014. This requirement progressively increases by 0.5% from 2015 until 2024, when a 10% renewable energy requirement will be reached. This law was amended in 2013 by Law No. 20,698, referred to as the “20/25 law,” as it establishes that by 2025, 20% of energy supplied must be generated by NCRE. It does not change the previous law’s plan for supplying energy under agreements in effect at July 2013. a.2 Transmission Segment The transmission segment is comprised of a combination of lines, substations and equipment for the transmission of electricity from the production points (generators) to the centers of consumption or distribution, which do not correspond to distribution facilities. The transmission segment is divided into National Transmission System, Development Poles Transmission System, Zonal Transmission System and Dedicated Transmission System. The International Interconnection Systems, which are governed by special rules, are also part of the transmission segment. The transmission system is open access, and transmission companies may impose rights of way over the available transmission capacity under non-discriminatory conditions. The fees of the existing facilities of the National and Zonal Transmission Systems is determined through a tariff setting process that is carried out every four years. In that process, the Annual Value of the Transmission is determined, which comprises efficient operation and maintenance costs and the annuity of the investment value, determined on the basis of a discount rate fixed by the authority on a quarterly basis (minimum 7% after tax) and the economic useful life of the facilities. The planning of the National and Zonal Transmission Systems a regulated and centralized process, in which the CEN annually issues an expansion plan report, which is published by the CEN to receive proposals from companies. The expansion plan report can receive comments from participants and must be approved ultimately by the CEN. The expansions of both systems are carried out through open tenders, distinguishing between new projects (with tenders open to any bidder) and expansion of existing facilities projects (participation in the expansion corresponds to owners of the original facilities under modification). Both types of tenders are managed by the CEN. The bids correspond to the value resulting from the tender, which constitutes the revenues for the first 20 years from the start of operations. As of year 21, the fees of such transmission facilities are determined as if they were existing facilities. The current regulations define that the transmission is remunerated by the sum of the tariff revenues and the collection of charges for the use of the transmission system. This charge is defined (Ch$ / kWh) by the CNE, on a half-yearly basis. a.3 Distribution segment The distribution segment is defined for regulatory purposes as all electricity supplied to end customers at a voltage no higher than 23 kV. Distribution companies operate under a distribution public utility concession regime, with service obligations and regulated tariffs for supplying regulated customers. Customers are classified based on their demand as regulated and unregulated. Regulated customers are those with connected capacity of more than 5,000 kW. Customers with connected capacity between 500 kW and 5,000 kW can choose either a regulated or an unregulated regime. Distribution companies can supply both regulated customers, under supply conditions regulated by the Chilean Electricity Law, and unregulated customers, whose supply conditions are freely negotiated and agreed in bilateral contracts with energy suppliers (generation or distribution companies). Regarding price regulation, the Chilean Electricity Law establishes that distribution companies must permanently have available energy supply, on the basis of open, non-discriminatory and transparent public tenders. These bidding processes are managed by the CNE and are carried out at least five years in advance. The result of the process is a “pay as bid” contract, with an extension up to 20 years. In case of unforeseen deviations in the projections of demand, the regulator has the authority to carry out short-term tenders. In addition, a reimbursement mechanism exists allowing supply without contract and regulating corresponding tariffs. Tariffs in this segment are set every four years, based on a cost study to determine the Value Added of Distribution (VAD). The determination of the VAD is based on an efficient model business scheme and the typical area concept. To determine the VAD, the CNE classifies companies with similar distribution costs into groups called “typical areas”. For each typical area, the CNE orders a study from independent consultants, in order to determine the costs associated with a model efficient company, considering overhead, average energy and power losses and standard investment, maintenance and operation costs associated with distribution, and including some restrictions faced by actual distribution companies. Annual investment costs are calculated considering the New Replacement Value (VNR) of the facilities adapted to the demand, their useful life and an update rate, calculated every four years by the CNE. On December 21, 2019, the Ministry of Energy published Law No. 21,194 (Short Law) that reduces the profitability of distribution companies, wich cannot be less than 6% or greater than 8% a year after tax, and improves the electricity distribution tariff process. As a result, the process for determining distribution tariffs in the 4-year period 2020-2024 incorporates the provisions of this Short Law. Subsequently, tariffs are structured and the economic after tax rate of return is validated, and that rate cannot differ by more than two points upwards and three points downwards from the rate defined by the CNE. Additionally, every four years a review of services associated with the calculation of VAD is carried out, which do not represent energy supply and which the Free Competition Court qualifies as subject to tariff regulation. The Chilean distribution tariff model is a consolidated model, which already had eight cycles of tariff settings since the enactment of the General Electric Services Law in 1982. b) Regulatory Developments in 2019 Laws Published in 2019 Law No. 21,185, of the Ministry of Energy, published on November 2, 2019 sets up a Transitional Mechanism for the Stabilization of Electric Power Prices for Customers subject to Tariff Regulation. Through this Law, between July 1, 2019 and December 31, 2020, the prices to be charged to regulated customers are kept at the same price levels defined for the first half of 2019 (Decree 20T / 2018) and will be called “ Stabilized Price to Regulated Client ”(PEC). Between January 1, 2021 and until the end of the stabilization mechanism, the prices will be those established semi-annually in accordance with article 158 of the Electricity Law, but may not exceed the PEC adjusted for the Consumer Price Index as of January 1, 2021 based on the same date (adjusted PEC). The differences that occur between the billing applying the stabilization mechanism and the theoretical billing considering the price that would have been applied in accordance with the conditions of the respective contracts with the electricity distribution companies, will generate an account receivable in favor of the electricity generation companies with a limit of US 1.35 billion until 2023. All billing differences will be denominated in US dollars and will not accrue interest until December 31, 2025The balance must be recovered no later than December 31, 2027. Law No. 21,194, of the Ministry of Energy, published on December 21, 2019, effective as of that same date reduces the profitability of distribution companies and improves the electricity distribution’s tariff process. Through this Law, the proportion of consideration of two thirds for the VAD study carried out by the CNE and one third for the VAD study carried out by the distribution companies is eliminated, and is replaced with a single study requested by the CNE. On the other hand, the rate for updating the calculation of annual investment costs is changed from the actual annual 10% to a rate calculated by the CNE every four years, which cannot be less than 6% or greater than 8% a year after tax. The distribution companies’ after-tax rate of return may not differ by more than two points upwards and three points downwards from the rate defined by the CNE. Additionally, as of January 2021, distribution companies must have a single line of business. CNE 2019 Regulatory Plan Under the Exempt Resolution No. 790 dated December 10, 2018, in accordance with the provisions of Article 72-19 of the General Electric Services Law, the CNE published its Annual Work Plan for the preparation of the technical regulations for 2019. The document defines the general guidelines and the program priorities of the CNE’s Regulatory Work Plan 2019 and the pending regulatory procedures of the 2018 Work Plan, the preparation of which continued being performed during 2019. Regulations Published in 2019 Regulation of Supplementary Services. On March 27, 2019, the Ministry of Energy approved Decree No. 113/2017 which is the Supplementary Services Regulation referred to in article No. 72-7 of the General Law of Electric Services, . This Decree's effective date is January 1, 2020. 2017 Transmission Expansion Plan In accordance with the stages of the process established in the law, on November 8, 2018, the Chilean Ministry of Energy published Exempt Decree No. 293/2018 establishing the Expansion Works of the National and Zonal Transmission Systems that must start their tender process in the next twelve months. Subsequently, on August 13, 2019, it published Exempt Decree No. 202/2019 which revises the prior Decree regarding the Extension Works. On January 9, 2019, the Ministry of Energy published Exempt Decree No. 4/2019 establishing the New Works of the National and Zonal Transmission Systems who must start their tender process in the next twelve months. 2018 Transmission Expansion Plan According to the stages of the Transmission Expansion Plan, the CNE issued the Final Technical Report through Exempt Resolution No. 14 on January 11, 2019. Subsequently, the persons concerned filed their discrepancies before a Panel of Experts in a public hearing. In this regard, the CNE issued the Final Technical Report by means of Exempt Resolution No. 334 dated May 29, 2019. In accordance with the stages of the process established in the law, on September 24, 2019, the Ministry of Energy published Exempt Decree No. 231/2019 establishing the New Works of the National and Zonal Transmission Systems who must start their tender process or study of the allocated capacity in the next twelve months. On August 10, 2019, it published Exempt Decree No. 198/2019 establishing the Expansion Works of the National and Zonal Transmission Systems who must start their tender process in the next twelve months. Such relates to the expansion plan of 2018. 2019 Transmission Expansion Plan According to article 91 of Law 20,936/2016, which establishes the Transmission Planning Procedure, the CNE has the obligation to send to the CNE, the proposal to expand the different segments of the transmission system. On January 22, 2019 the document with the proposal was generated. The CNE summoned all interested parties to submit proposals for Transmission Expansion projects until April 22, 2019, in accordance with the provisions of article 91 of the Law. On December 23, 2019, the CNE issued an Exempt Resolution No. 801 Updating the Citizen Participation Registry of the corresponding Annual Transmission Planning Process, in accordance with the provisions of article 90 of the General Law of Electrical Services and establishes a consolidated list of participants and interested users and institutions. c. Tariff Revisions: c.1 Distribution Tariff Setting The process of setting tariffs for the four-year period 2016-2020 ended on August 24, 2017 with the publication of the Decree No. 11T/2016 in the Official Gazette. This decree established tariff formulas at the distribution level, and was effective as of November 4, 2016. On June 27, 2018, the Ministry of Energy published the Decree No. 2T/2018, which sets the power adjustment factor of the tariff formulas applicable to supplies, subject to regulated prices which applies for the four years November 2016 - November 2020. Decree No. 5T of the Ministry of Energy became effective on September 28, 2018. This decree updated Decree No. 11T of 2016 of the Ministry of Energy. Therefore, it updated tariffs for the electricity distribution segment in effect until the next tariff setting. On July 26, 2019, through Resolution No. 15699/2019, SEF implemented an action plan to make effective the adjustment indicated in Resolution No. 490/2019 of CNE, with respect to Decree No. 5T/2018 of the Ministry of Energy. The validity of the adjustment was retroactive from September 28, 2018. The tariffs applied in 2019 to end customers were determined based on the following decrees and resolutions: i. Decree No. 11T/2016 published in the Official Gazette on August 24, 2017, set the tariff indexation formulas applicable to energy supplies subject to regulated prices. Tariffs were retroactively applied from November 4, 2016. ii. Decree No. 2T/2018, which sets the power adjustment factor of the tariff formulas applicable to supplies subject to regulated prices, published in the Official Gazette on June 27, 2018 and which applies for the four years between November 2016 to November 2020. iii. Decree No. 5T/2018, which sets tariff formulas applicable to electricity supplies subject to regulated prices listed in Decree No. 11T dated 2016 of the Ministry of Energy, published in the Official Gazette on September 28, 2018 and which is effective from its publication date. iv. SEF Resolution No15699/2019, which implements an adjustment action plan indicated in the CNE Resolution No 490/2019, issued by CNE, regarding Decree No. 5T/ 2018 of the Ministry of Energy, with retroactive effect from September 28, 2018 and which is effective until November 3, 2020. v. Decree No. 6T/2017, which fixes Annual Value per Tranche of the Zonal and Dedicated Transmission Facilities used by users subject to price regulation, their tariffs and indexing formulas for the two-year period 2018-2019, published by the Ministry of Energy in the Official Gazzete on October 5, 2018, which has effect from January 1, 2018 to December 31, 2019. vi. Tariff Decrees Average node prices: On September 28, 2018, the Ministry of Energy published Decree No. 7T/2018 in the Official Gazette, which sets the regulated prices for electricity supplies and sets adjustments and surcharges for the application of the Residential Tariff Equality Mechanism, with retroactive effect from July 1, 2018. On May 6, 2019, the Ministry of Energy published Decree No. 20T/2018 in the Official Gazette, which sets the regulated prices for electricity supplies and sets adjustments and surcharges for the application of the Residential Tariff Equality Mechanism, with retroactive effect from January 1, 2019. On October 5, 2019, the Ministry of Energy published Decree No.7T/2019 in the Official Gazette, which sets the regulated prices for electricity supplies and sets adjustments and surcharges for the application of the Residential Tariff Equality Mechanism, with retroactive effect from July 1, 2019. On November 2, 2019, the Ministry of Energy published Law No. 21,185 that creates a transitional mechanism for the stabilization of electric energy prices for customers subject to tariff regularization. Article 5 of this Law repeals Decree No. 7T/ 2019, and extends the validity of Decree No. 20T/2018 from its original validity until the publication of the decree of average regulated node price that corresponds after the entry into force of the law. Short-term node prices: The Ministry of Energy published Decree No. 1T/2018 on June 28, 2018, which fixed node prices for electricity supplies, with retroactive effect from April 1, 2018 On February 8, 2019, the Ministry of Energy published Decree No. 12T/2018, which sets the regulated prices for electricity supplies, with retroactive effect from October 1, 2018. On June 5, 2019, the Ministry of Energy published Decree No. 1T/2019, which sets the regulated prices for electricity supplies, with retroactive effect from April 1, 2019. On October 23, 2019, the Ministry of Energy published the Decree No. 9T/2019, which sets the regulated prices for electricity supplies, with retroactive effect from October 1, 2019. c.2 Setting of Service Tariffs Associated with Distribution The Ministry of Energy published Decree No. 13T/2018 in the Official Gazette on July 24, 2018. This decree established tariffs for Non-Consistent Services in Energy Supplies associated with electricity distribution. These tariffs have been in force since the publication of the decree and they are in effect to date. c.3 Subtransmission Tariff Setting The Ministry of Energy published Decree No. 6T/2017 on October 5, 2018. This decree set annual value per tranche of the Zonal and Dedicated transmission facilities used by users subject to price regulation, their tariffs and indexation formulas for the two-year period 2018-2019. c.4 Transmission Tariff Setting 2020‑2023 In the framework of the process of Transmission Tariff Setting 2020-2023, the processes of Qualification of Facilities of the Transmission Systems, Setting of Useful Life of the Transmission Facilities and definition of the Technical and Administrative Bases for the Study of Valuation of Transmission Facilities are in progress. In this context, for the purposes of the Qualification Process of Transmission System Facilities for the period 2020-2023, the CNE, issued the preliminary technical report defining which transmission facilities correspond to each segment (National, Zonal and Dedicated) dated April 9, 2019. In compliance with the stages established by the regulations, the CNE through Exempt Resolution No. 244 issued the Final Technical Report.. Also, for the purposes of the process of Setting of Useful Life of the Transmission Facilities,on June 5, 2018, the CNE approved the Final Technical Report that determines Useful Lives, by means of Exempt Resolution No. 412. Finally, for the purposes of the definition of the Technical and Administrative basis for the Study of Valuation of Transmission Facilities, the CNE published the Technical and Administrative Preliminary for the end of 2017, which in general terms, this document regulates the contracting process of the tariff study and defines the rules for carrying out the tariff study of the entire transmission system, defining the tender of two studies: one for National facilities and another for Zonal and Dedicated facilities On April 26, 2019, and in compliance with the stages contemplated by the Law, the CNE through Exempt Resolution No.272, approved the Definitive Technical and Administrative Bases for conducting the Valuation Studies of the Transmission Systems. On December 11, 2019, the CNE issued Exempt Resolution No. 766 that rectifies the previous resolution. Following the stages of the process established by the Law, the CNE established a committee for the adjudication and supervision of the valuation studies of the Transmission facilities, through Exempt Resolution No. 271 dated April 26, 2019. Additionally, through Exempt Resolution No. 678 dated October 24, 2019, it approved the Service Provision Contract for the National Transmission Study. c.5 Energy Tenders Under the new law for energy tenders, three bidding processes have been carried out: Supply Bidding No. 2015/01, Supply Bidding No. 2015/02 and Supply Bidding No. 2017/01. In addition, the CNE declared the start of a fourth process called Supply BiddingNo. 2019 01/2019. Supply Bidding No. 2015/02 was launched in June 2015 and finalized in October 2015. The final outcome of the process resulted in three energy blocks awarded for a total of 1.2 GWh per year (100%) at a weighted average price of US$ 79.3 per MWh. Supply Bidding No. 2015/01 was launched in May 2015 and finalized in July 2016. The final outcome of the process resulted in five energy blocks awarded for a total of 12.4 GWh (100%) to 84 companies at a weighted average price of US$ 47.6 per MWh. Enel Generación Chile was awarded with 5.9 TWh per year, which represents 47.6% of the total energy awarded. Supply Bidding No. 2017/01 was launched in January, 2017 and finalized in November 2017. The final outcome of the process resulted in five energy blocks awarded to five companies for a total of 2,200 GWh per year at a weighted average price of US$ 32.5 per MWh. Enel Generación Chile was awarded with 1.2 TWh per year, which represents 54% of the total energy awarded. During 2019, the Supply Bidding No. 2019/01 process began, which contemplates a total amount of 5.8TWh per year to be tendered, with a validity period between 2026 and 2040. The closing date for the presentation of bids, is May 27, 2020, as announced by the CNE.

Non-Current Assets or Disposal

Non-Current Assets or Disposal Groups Classified as Held For Sale	12 Months Ended
	Dec. 31, 2019
NON-CURRENT ASSETS OR DISPOSAL GROUPS CLASSIFIED AS HELD FOR SALE
Non-Current Assets or Disposal Groups Classified as Held For Sale	5 . NON-CURRENT ASSETS OR DISPOSAL GROUPS CLASSIFIED AS HELD FOR SALE. i. Electrogas S.A. On December 16, 2016, our subsidiary Enel Generación Chile S.A. signed an agreement to sell all shares of its equity method investee Electrogas S.A., representing a 42.5% ownership interest, to Aerio Chile SpA (“Aerio Chile”) which is an indirectly wholly-owned subsidiary of REN – Redes Energéticas Nacionais, S.G.P.S., S.A., under which Enel Generación Chile sold all its shares in Electrogas S.A., representing 42.5% of the capital of said company. The total price was US$180 million, which was paid on the closing date of the referred transaction. Finally, the amount collected was ThCh$115,582,806 and originated a pre-tax gain of ThCh$105,311,912 (see Notes 8.c and 33, respectively). Electrogas S.A. is a private corporation whose purpose is to provide services of transportation of natural gas and other fuels, on its own and on behalf of third parties. In order to provide its services, it can build, operate and maintain gas and oil pipelines, polyducts and supplementary facilities.

Business Combinations Under Com

Business Combinations Under Common Control	12 Months Ended
	Dec. 31, 2019
BUSINESS COMBINATIONS UNDER COMMON CONTROL
Disclosure of business combinations [text block]	6. Corporate restructuring project Considering the high priority given to renewable energies in the Open Power strategy, and with the purpose of consolidating a vehicle that maximizes this strategy, on August 25, 2017 Enel Chile proposed for the consideration of Enel S.p.A., a corporate restructuring of Renewable Assets(hereinafter the “Reorganization”) which consisted of integrating the renewable energy assets in Chile maintained by Enel Green Power Latin America S.A. (“EGPL“) with Enel Chile, which in turn controlled the conventional power generation assets belonging to Enel Generación Chile S.A. (“Enel Generación Chile“) and the electricity distribution assets belonging to Enel Distribución Chile S.A. Enel Chile and Enel Generación Chile are entities registered with the Financial Market Commission of Chile and had American Depository Receipts (“ADS“) traded on the New York Stock Exchange, and are therefore also subject to regulation by the Securities and Exchange Commission of the United States of America. EGPL was an indirect subsidiary of Enel S.p.A., directly controlled by Enel Green Power SpA. (“EGP”). The Reorganization involved two principal phases, each of which was conditional on the implementation of the other, as follows: i) Public tender offer Enel Chile presented a public tender offer (the “Tender Offer”) for all of the shares (including in the form of American Depositary Shares (“ADSs”)) of its subsidiary Enel Generación Chile held by non-controlling interests (equivalent to approximately 40% of the share capital). The Tender Offer consideration was paid in cash, subject to the condition that tendering Enel Generación Chile shareholders agreed to use Ch$236 of the Ch$590 cash tender offer consideration for each Enel Generación Chile share and Ch$7,080 of the Ch$17,700 cash tender offer consideration for each Enel Generación Chile ADS to subscribe for shares of Enel Chile common stock 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”) to make available a sufficient number of shares of Enel Chile common stock to deliver to tendering holders of Enel Generación Chile shares and ADSs to satisfy the Share/ADS Subscription Condition. In connection with the Capital Increase, in accordance with Chilean law, Enel Chile made a iii) Merger After the Tender Offer was declared successful, EGPL merged with Enel Chile (the ”Merger“). Consequently, the renewable assets held by EGPL were integrated into Enel Chile. On December 20, 2017, the Extraordinary Shareholders’ Meeting of Enel Chile approved the Reorganization, subject to compliance with the conditions established for the Tender Offer, Capital Increase and Merger. The Board also approved the capital increase of Enel Chile in the amount of Ch$1,891,727,278,668, through the issuance of 23,069,844,862 new common shares, all of the same series and without par value, at the price and other conditions approved by the Board. Finally, on March 25, 2018, the amendments to Enel Chile’s by-laws were approved to reflect the merger, capital increase and expansion of Enel Chile’s corporate purpose, among other provisions. The preemptive rights offering took place between February 16 and March 22, 2018; the shares were subscribed between February 15 and March 16, 2018 to cover the capital increase; and the Reorganization (including the Merger) was completed and became effective as of April 2, 2018 and resulted in an increase of Enel Chile’s ownership in Enel Generación Chile from 59.98% to 93.55% and the Merger of Enel Chile with EGPL effective as of this date, a process whereby Enel S.p.A. increased its total interest in Enel Chile to 61.93%. Since the date of acquisition, EGP Chile Group has contributed revenue of ThCh$52,892,734 and pretax income of ThCh$30,471,438 to the profit and loss of Enel Chile for the period ended December 31, 2018. If the acquisition had occurred on January 1, 2018, it is estimated that the consolidated revenue for the year ended December 31, 2018 would have increased to ThCh$71,072,559 and the consolidated gain before tax would have increased by ThCh$43,360,620. Carrying amount of the assets and liabilities of EGPL at the merger date: Identifiable net assets acquired ThCh$ Cash and cash equivalents 12,173,982 Other current financial assets 8,460 Other current non-financial assets 3,832,583 Trade and other current receivables 27,414,273 Current accounts 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 non-current receivables 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 accounts payable 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

Argentina's Hyperinflationary E

Argentina's Hyperinflationary Economy	12 Months Ended
	Dec. 31, 2019
ARGENTINA’S HYPERINFLATIONARY ECONOMY
Disclosure of hyperinflationary reporting [text block]	7. ARGENTINA’S HY Since July 2018, Argentina’s economy is considered hyper-inflationary under the provisions of IAS 29 - Financial Reporting in Hyperinflationary Economies. A number of qualitative and quantitative criteria led to this qualification; chief among them is the cumulative inflation rate over three years exceeding 100%. In accordance with the provisions of IAS 29, the financial statements of the companies in Argentina in which Enel Chile has an interest have been retrospectively restated by applying a general price index to the historical cost, in order to reflect changes in the purchasing power of the Argentine currency as of the closing date of these financial statements. The general price indices used at the close of the reporting periods are as follows: General price index From January 2015 to December 2017 85.52% From January to December 2018 47.83% From January to December 2019 53.64% The following is a summary of the effect in the Consolidated Statements of Comprehensive Income of Enel Chile: As of December 31, Result due to Hyperinflation 2019 2018 ThCh$ ThCh$ Intangible assets other than goodwill Property, plant and equipment Equity Other Services Provision Other Variable Provisioning and Services Employee benefits expenses Other Fixed Operating Expenses Financial income Financial costs Result due to Hyperinflation * (*) Corresponds to the financial effect derived from the application of IAS 29 Financial Reporting in Hyperinflationary Economies , which is derived from the results arising from the net position of monetary assets and liabilities. This result is determined through the restatement of non-monetary assets and liabilities, as well as those income statements that are not determined from an updated base (see Note 34). The cumulative effects of adoption IAS 29 as of January 1, 2018 on the financial statements of Enel Chile’s Argentine subsidiary was a credit of ThCh$664,470, net of tax, and was recognized as an adjustment to beginning retained earnings. (see Note 2.7.4).

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2019
CASH AND CASH EQUIVALENTS.
Cash and Cash Equivalents	8 . CASH AND CASH EQUIVALENTS. a) The detail of cash and cash equivalents as of December 31, 2019 and 2018, is as follows: As of December 31, 2019 2018 Cash and Cash Equivalents ThCh$ ThCh$ Cash balances 31,416 44,326 Bank balances 24,960,269 98,395,997 Time deposits 14,600,772 5,782,252 Other fixed-income instruments 196,092,043 140,949,349 Total 235,684,500 245,171,924 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 instruments, are mainly comprised of repurchase agreements maturing in 90 days or less from the date of investment. There are no restrictions for significants amounts of cash availability. b) The detail of cash and cash equivalents by currency is as follows: As of December 31, 2019 2018 Currency ThCh$ ThCh$ Chilean peso 209,818,277 222,434,412 Argentine peso 7,096,519 6,057,793 Euros 654,319 103,847 U.S. dollar 18,115,385 16,575,872 Total 235,684,500 245,171,924 c) The following tables sets forth cash and cash equivalents that have been received from the sale of shares of associates during the years ended December 31, 2019, 2018 and 2017: 2019 2018 2017 (*) Loss of control at Associates ThCh$ ThCh$ ThCh$ Amounts received for the sale of Associates (*) — — 115,582,806 Total — — 115,582,806 (*) See Note 5. 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$ Bank loans (Note 21.1) 512,547,718 — (284,022,562) (16,242,086) (300,264,648) — — 24,797,525 15,926,293 — (4,462,601) 248,544,287 Unsecured obligations (Note 21.2) 1,505,282,083 — (31,300,902) (80,892,559) (112,193,461) — — 99,245,420 85,089,982 — (134,121) 1,577,289,903 Leases (Note 21.4) 14,476,450 — (4,498,202) (641,609) (5,139,811) — — 4,437,227 1,815,169 37,818,654 — 53,407,689 Financial derivatives for hedging (Note 9 and 23) 40,611,925 1,791,715 (33,584,639) (5,805,822) (37,598,746) — 46,396,434 (32,145,989) 398,636 — (1,418,539) 16,243,721 Loans to related parties (Note 12.1.b) 447,317,781 283,831,505 — (30,847,678) 252,983,827 — — 52,606,156 31,328,749 — (2,360,689) 781,875,824 Other obligations — — (1,744,199) — (1,744,199) — — — 1,744,199 — — — Total 2,520,235,957 285,623,220 (355,150,504) (134,429,754) (203,957,038) — 46,396,434 148,940,339 136,303,028 37,818,654 (8,375,950) 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$ Bank loans (Note 21.1) 122 940,414,450 (812,568,125) (22,902,945) 104,943,380 322,301,558 — 51,622,432 27,929,781 — 5,750,445 512,547,718 Unsecured obligations (Note 21.2) 763,579,584 625,368,154 (5,654,112) (59,362,432) 560,351,610 — — 128,056,234 64,400,703 — (11,106,048) 1,505,282,083 Finance leases (Note 21.4) 14,608,914 — (1,889,685) (739,070) (2,628,755) — — 1,757,221 739,070 — — 14,476,450 Other liabilities (Note 18.1) — — (1,303,692) (1,303,692) — 52,972 — 1,250,720 — Financial derivatives for hedging (Note 9 and 23) (29,478,642) — — (3,496,889) (3,496,889) (5,495,214) 48,389,489 32,202,403 3,569,025 — (5,078,247) 40,611,925 Loans to related parties (Note 12.1.b) — — — (30,039,555) (30,039,555) 398,462,271 — 51,063,262 29,906,460 — (2,074,657) 447,317,781 Other obligations — — (23,307,842) — (23,307,842) — — — 23,307,842 — — — Total 748,709,978 1,565,782,604 (844,723,456) (116,540,891) 604,518,257 715,268,615 48,389,489 264,754,524 149,852,881 — (11,257,787) 2,520,235,957 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$ Bank loans (Note 21.1) 4,274 — (4,156) (12,581) (16,737) — — — 12,585 — — 122 Unsecured obligations (Note 21.2) 802,306,160 — (5,530,327) (43,514,578) (49,044,905) — — (33,226,098) 43,544,427 — — 763,579,584 Finance leases (Note 21.4) 17,749,647 — (2,592,236) — (2,592,236) — — (1,359,668) 811,171 — — 14,608,914 Financial derivatives for hedging (Note 9 and 23) 23,640,892 — (3,543,399) — (3,543,399) — (25,059,561) (23,488,917) 3,473,938 — (4,501,595) (29,478,642) Loans to related parties (Note 12.1.b) — 150,000,000 (150,000,000) (289,800) (289,800) — — — 289,800 — — — Other obligations — — (1,305,389) — (1,305,389) — — — 1,305,389 — — — Total 843,700,973 150,000,000 (162,975,507) (43,816,959) (56,792,466) — (25,059,561) (58,074,683) 49,437,310 — (4,501,595) 748,709,978 (1) Balance corresponds to current and non-current portion. (2) Other changes include interest accruals

Other Financial Assets

Other Financial Assets	12 Months Ended
	Dec. 31, 2019
OTHER FINANCIAL ASSETS
Other Financial Assets	9 . OTHER FINANCIAL ASSETS. The detail of other financial assets as of December 31, 2019 and 2018 is as follows: Current Non-current 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Other Financial Assets ThCh$ ThCh$ ThCh$ ThCh$ Financial assets at fair value with changes in results — 90,839 — — Financial assets at fair value with changes in other comprehensive income 127,854 269,031 2,349,223 2,352,894 Financial assets Financial assets measured at amortized cost 860,425 880,268 — 689,146 Hedging derivatives 322,316 39,022,012 4,871,397 4,191,543 Non-Hedging derivatives — 41,023 — 36,086 Total 1,310,595 40,303,173 7,220,620 7,269,669

Other Non-financial Assets and

Other Non-financial Assets and Liabilities	12 Months Ended
	Dec. 31, 2019
OTHER NON-FINANCIAL ASSETS AND LIABILITIES
Other Non-financial Assets and Liabilities	10. OTHER NON-FINANCIAL ASSETS AND LIABILITIES a) Other non-financial assets Details of other non-financial assetsas of December 31, 2019 and 2018 are as follows: Currrent Non-Current Other non-financial assets 12-31-2019 12-31-2018 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ VAT Tax Credit and Other Taxes Prepaid expenses - - Guarantee deposit - - PPM water rights - - Spare parts with consumption schedule over 12 months - - Other Total b) Other non-financial liabilities Details of other non-financial liabilities as of December 31, 2019 and 2018 are as follows: Currrent Non-Current Other non-financial liabilities 12-31-2019 12-31-2018 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ VAT and Other Taxes due 31,616,664 56,341,865 - Reimbursable financial contributions - - 1,302,759 226,653 Splices 9,283,177 10,456,081 - Transfer of networks 2,845,708 1,786,635 - Products and services 1,088,498 1,502,411 - Other 674,336 1,221,990 - Total

Trade and Other Receivables

Trade and Other Receivables	12 Months Ended
	Dec. 31, 2019
TRADE AND OTHER RECEIVABLES.
Trade and Other Receivables	11. TRADE AND OTHER RECEIVABLES. a) The detail of trade and other receivables as of December 31, 2019 and 2018, is as follows: As of December 31, 2019 2018 Current Non-current Current Non-current Trade and Other Receivables, Gross ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, gross 566,919,977 313,574,385 527,649,947 60,527,843 Trade receivables, gross 500,040,783 191,966,929 457,053,617 2,046,845 Leasing accounts receivables, gross 13,158,795 117,873,340 6,791,579 55,651,630 Other receivables, gross 53,720,399 3,734,116 63,804,751 2,829,368 As of December 31, 2019 2018 Current Non-current Current Non-current Trade and Other Receivables, Net ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, net 511,455,330 313,574,385 478,170,067 60,527,843 Trade and other receivables, net 456,552,682 191,966,929 417,927,182 2,046,845 Leasing accounts receivables, net 11,121,878 117,873,340 6,101,812 55,651,630 Other receivables, net (1) 43,780,770 3,734,116 54,141,073 2,829,368 (1) The details of Other Receivables, net is as follows: As of December 31, 2019 2018 Other receivables, net Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Other receivables, net 43,780,770 3,734,116 54,141,073 2,829,368 Recoveries from insurance companies 2,011,406 — 18,805,057 — Accounts receivable from employees 10,017,453 3,308,861 9,237,209 2,426,697 Advances to suppliers and creditors 19,864,669 415,787 19,236,907 402,671 Others 11,887,242 9,468 6,861,900 — As of December 31, 2019, non-current trade accounts receivable , gross increased by ThCh$189,920,084 compared to December 31, 2018. On November 2, 2019, the Ministry of Energy published Law No.21,185, which creates a Transitional Mechanism for the Stabilization of Electricity Prices for Customers Subject to Tariffs Regulation. Through this Law, between July 1, 2019 and December 31, 2020, the prices to be charged to regulated customers are kept at the same price levels defined for the first half of 2019 (Decree 20T/2018) and will be called the “ Stabilized Price to Regulated Client ”(PEC in Spanish). Between January 1, 2021 and until the end of the stabilization mechanism, the prices will be the amounts established semi-annually in accordance with article 158 of the Electricity Law, but may not exceed the PEC as adjusted by the Consumer’s Price Index as of January 1, 2021 based on the same date (adjusted PEC) The differences that occur between the billing applying the stabilization mechanism and the theoretical billing, considering the price that would have been applied in accordance with the conditions of the respective contracts with the electricity distribution companies, will generate an account receivable in favor of the electricity generation companies with a limit of US$1,350 million until 2023. All billing differences will be denominated in US dollars and will not accrue interest until December 31, 2025. The balance must be recovered no later than December 31, 2027. The application of the aforementioned Law, causes a greater lag in the billing and collection of sales generated in our Electricity Generation segment, with the corresponding financial and accounting impact that the situation entails. For this reason, at the end of 2019, Enel Generación Chile recognized lower revenues from energy sales and a higher financial expense of ThCh$2,600,428 and ThCh$14,250,887, respectively. In addition, a profit was recorded for exchange differences of ThCh$ 3,835,024, due to the dollarization of accounts receivable pending for invoicing, and financial income of ThCh$414,292. In the case of our Electricity Distribution segment, the financial and accounting effects are neutralized (pass-through principle). In effect, at the end of 2019, Enel Distribución Chile recognized lower sales revenues to end customers of ThCh$ 2,083,048 and the same value as lower cost of energy purchase. On the other hand, it recognized ThCh$10,241,505 as financial income for the postponement of payment to the electricity supply providers and the same amount as financial expense for the postponement of the payment to final customers, as well as positive and negative exchange differences for ThCh$2,825,769, for the dollarization of the corresponding accounts payable and receivable already mentioned. As a result of the situations described above and after eliminating transactions between related companies, at the end of 2019, the Group reclassified non-current trade accounts receivable for ThCh$182,076,569 and suppliers for energy purchases for ThCh$53,941,373 (see Note 24). Along with this, it meant an impact on lower revenues from energy sales of ThCh $ 3,782,091 and a lower cost in energy purchases of ThCh$1,181,163, and higher revenues and financial costs of ThCh$5,225,739 and ThCh$ 19,062,333, respectively, were recognized, (see Note 34). In addition, the Group recorded a profit for net exchange differences of ThCh $ 3,835,024, for the dollarization of accounts receivable pending billing (see Trade and other current receivable, in Note 34 corresponds to financial results). As of December 31, 2018, the accounts receivable and payable that resulted from the differences between the prices of the electricity supply contracts and the regulated prices, amounted to ThCh$48,196,306 and ThCh$6,718,177, respectively, and were presented in short term. The concepts indicated above, both commercial and non-commercial, although they are included in the impairment loss determination model (see Note 3.g.3), do not have a greater impact at the end of December 2019, due to the nature of these items: invoices pending issuance, invoices pending expiration or invoices due within normal business ranges. There are no significant trade and other receivables balances held by the Group that are not available for its use. The Group does not have customers with sales representing 10% or more of its total consolidated revenues for the years ended December 31, 2019 and 2018. Refer to Note 12.1 for detailed information on amounts, terms and conditions associated with accounts receivable from related parties. a) Lease receivables As of December 31, 2019 and 2018, the present value of minimum lease payments receivable is as follows: 12-31-2019 12-31-2018 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 15,313,622 4,191,744 11,121,878 8,033,838 1,932,026 6,101,812 From one to two years 17,350,359 3,919,937 13,430,422 8,033,838 1,553,584 6,480,254 From two to three years 17,350,359 3,630,136 13,720,223 8,033,838 1,549,927 6,483,911 From three to four years 17,316,251 3,115,800 14,200,451 8,033,838 1,512,895 6,520,943 From four to five years 17,271,708 2,246,896 15,024,812 7,994,153 1,028,452 6,965,701 More than five years 65,391,395 3,893,963 61,497,432 31,901,489 2,700,668 29,200,821 Total 149,993,694 20,998,476 128,995,218 72,030,994 10,277,552 61,753,442 Lease arrangements are related to public lightning developments mainly to municipalities. b) As of December 31, 2019 and 2018, the analysis of trade accounts receivable due and unpaid, but of which no impairment losses have been recorded, is as follows: Trade Receivables Past Due But Not Impaired (*) As of December 31, 2019 2018 ThCh$ ThCh$ Less than three months 43,661,270 37,711,262 Between three and six months 6,462,265 3,916,489 Between six and twelve months 5,162,189 5,312,988 More than twelve months 10,668,714 11,328,175 Total 65,954,438 58,268,914 c) The reconciliation of changes in the allowance for credit loss of trade receivables, determined according to Note 3.g.3, is as follows: Current and Non-current Trade Receivables allowance for credit loss ThCh$ Balance at December 31, 2017 43,874,059 Initial balance adjustment for IFRS 9 4,673,467 Amounts written off (3,863,702) Increase (decreases) for the year 4,783,072 Other movements 12,984 Balance at December 31, 2018 49,479,880 Increases (decreases) for the year (*) 10,047,000 Amounts written off (4,067,201) Foreign currency translation differences 4,968 Balance at December 31, 2019 55,464,647 (*) See Note 31 for impairment of financial assets. Write-offs for past due receivables Past due receivables are written off once all collection procedures and legal proceedings have been exhausted and the debtors’ insolvency has been demonstrated. In our power generation business, this process normally takes at least one year. In our distribution business the process takes at least twenty four months. Overall, the risk of writing off our trade receivables is limited (see Notes 3.g.3 and 22.5) d) Additional information: - Additional statistical information required under Official Bulletin 715 of the CMF of February 3, 2012 (XBRL Taxonomy). See Appendix 2. - Supplementary information on trade receivables. See Appendix 2.1.

Balances and Transactions With

Balances and Transactions With Related Parties	12 Months Ended
	Dec. 31, 2019
BALANCES AND TRANSACTIONS WITH RELATED PARTIES
Balances and Transactions With Related Parties	12. BALANCES AND TRANSACTIONS WITH RELATED PARTIES. Related party transactions are performed at current market conditions. Transactions between the Group and its subsidiaries, associates and joint ventures have been eliminated on consolidation and are not itemized in this note. As of the date of these consolidated financial statements, no guarantees have been given or received nor has any allowance for bad or doubtful accounts been recorded with respect to receivable balances for related party transactions. The controlling shareholder of the Company is the Italian corporation Enel S.p.A.. Enel Chile S.A. provides administrative services to its subsidiaries, through a Centralized Cash Contract that has been in effect since the second half of 2018, which finances the cash deficits of its subsidiaries or consolidates their cash surpluses. These accounts may have a debit or credit balance and are prepayable in the short-term , where interest rate is variable and represents market conditions. To reflect these market conditions, interest rates are periodically reviewed through an update procedure approved by the Board of Directors of the companies involved. Prior to the entry into the Centralized Cash Contract, Enel Chile and some subsidiaries had a Trade Checking Account Contract, through which intercompany loans could be delivered to each other. 12.1 Balances and transactions with related parties The accounts receivable and payable balances as of December 31, 2019 and 2018 are as follows: a) Receivables from related parties Current Non-current Taxpayer ID 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Number Company Country Relationship Currency Description of transaction Term of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent Euros Other services Less than 90 days 26,979 27,023 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent Euros Other services Less than 90 days 146,061 - - - Foreign Enel Green Power Morocco Italy Common Immediate Parent Euros Other services Less than 90 days 94,340 - - - 76.418.940-K GNL Chile S.A. Chile Associate US$ Advance Gas Purchase Less than 90 days 31,025,024 14,666,414 34,407,142 - 76.418.940-K GNL Chile S.A. Chile Associate US$ Dividends Less than 90 days - 788,336 - - Foreign Endesa Generación Spain Common Immediate Parent Euros Other services Less than 90 days 45,069 41,820 - - Foreign Enel Italy SrL. Italy Common Immediate Parent Euros Other services Less than 90 days 403,854 295,892 - - Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Other services Less than 90 days 120,276 44,675 - - Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Gas sales Less than 90 days 16,880,527 18,565,698 - - Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Commodity derivatives Less than 90 days 2,962,387 3,671,446 - - Foreign Enel S.p.A. Italy Parent Euros Other services Less than 90 days 467,393 415,200 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent CH$ Other services Less than 90 days - 281,002 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent R$ Other services Less than 90 days 705,954 - - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent US$ Other services Less than 90 days - 173,300 - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent US$ Other services Less than 90 days 578,847 703,368 - - Foreign Codensa S.A. Colombia Common Immediate Parent $ Col Other services Less than 90 days - 427,882 - - Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 859,573 - - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 1,180,707 973,873 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent US$ Other services Less than 90 days - 107,071 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CH$ Other services Less than 90 days 2,850,769 4,197,951 - - Foreign Enel Green Power Colombia SAS Colombia Common Immediate Parent US$ Other services Less than 90 days 489,301 419,032 - - Foreign Enel Generación Piura S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 60,670 89,545 - - Foreign Enel Green Power Spa IT Italy Common Immediate Parent Euros Other services Less than 90 days 1,399,057 2,405,958 - - Foreign Enel Green Power Spa IT Italy Common Immediate Parent US$ Other services Less than 90 days 1,509,373 - - - Foreign Sociedad Portuaria Central Cartagena S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 149,525 - - - Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent CH$ Other services Less than 90 days 603,171 354,283 - - Foreign Enel Green Power México México Common Immediate Parent US$ Other services More than 90 days - 98,519 - - Foreign Enel Green Power Peru Peru Common Immediate Parent US$ Other services Less than 90 days 1,765,939 1,959,124 - - Foreign Energía Nueva Energía Limpia Mexico S.R.L México Common Immediate Parent US$ Other services Less than 90 days 108,327 52,241 - - Foreign Proyectos y Soluciones Renovables S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days 60,717 29,054 - - Foreign Enel Generacion Costanera S.A. Argentina Common Immediate Parent US$ Other services Less than 90 days 34,771 32,264 - - Foreign Enel Generacion El Chocon S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 12,589 13,367 - - Foreign Enel Green Power Brazil Participacoes LTDA. Brazil Common Immediate Parent US$ Other services Less than 90 days - 52,215 - - Foreign Enel Green Power Brazil Participacoes LTDA. Brazil Common Immediate Parent R$ Other services Less than 90 days 127,879 23,329 - - Foreign Enel Finance International NV Holland Common Immediate Parent US$ Loan receivable Less than 90 days - 1,008,208 - - Foreign Enel Green Power Argentina Argentina Common Immediate Parent US$ Other services Less than 90 days 284,876 276,607 - - Foreign Energetica Monzon S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days 461,677 601,512 - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent US$ Other services Less than 90 days 385,716 466,281 - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent CH$ 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 57,761 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent CH$ Other services Less than 90 days 7,381 - - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent CH$ Other services Less than 90 days - 23,077 - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent US$ Other services Less than 90 days 1,305,475 464,846 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CH$ Other services Less than 90 days 341,200 309,717 - - Foreign Enel X SLR Italy Common Immediate Parent Euros Other services Less than 90 days 26,954 14,233 - - Foreign Enel Global I&N S.R.L. Italy Common Immediate Parent CH$ Other services Less than 90 days - 10,365 - - Foreign Enel Produzione Italy Common Immediate Parent Euros Other services Less than 90 days 13,781 - - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Euros Technical services Less than 90 days 273,003 - - - Foreign Enel X North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 92,730 - - - Foreign Parque Amistad II SA de CV México Common Immediate Parent US$ Other services Less than 90 days 50,264 - - - Foreign Parque Amistad IV SA de CV México Common Immediate Parent US$ Other services Less than 90 days 17,590 - - - 76.091.595-5 Aysén Energía Chile Joint venture CH$ Other services Less than 90 days - 14,286 - - 76.041.891-9 Aysén Transmisión Chile Joint venture CH$ Other services Less than 90 days - 14,285 - - Total 68,182,133 54,171,060 34,407,142 - b) Accounts payable to related parties Current Non-current Taxpayer ID 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Number Company Country Relationship Currency Description of transaction Terms of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent Euros Other services Less than 90 days 159,940 159,940 — — Foreign Enel Brasil S.A. Brazil Common Immediate Parent US$ Other services Less than 90 days — 74,949 — — Foreign Enel Trading Argentina S.R.L. Argentina Common Immediate Parent US$ Other services Less than 90 days 86,189 77,624 — — Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent $ Col Other services Less than 90 days 4,723 4,723 — — 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CH$ Other services Less than 90 days 1,909,747 1,461,815 — — 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent US$ Other services Less than 90 days — 1,987 — — Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 2,291 2,291 — — Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent Euros Other services Less than 90 days 57,324 — — — Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent Euros Technical services Less than 90 days 1,984,129 1,235,525 — — 76.418.940-K GNL Chile S.A. Chile Associate US$ Gas Purchase Less than 90 days 4,980,936 5,935,652 2,497,660 — 76.418.940-K GNL Chile S.A. Chile Associate CH$ Other services Less than 90 days — 12,389 — — Foreign Endesa Generación Spain Common Immediate Parent Euros Other services Less than 90 days 216,522 702,702 — — Foreign Enel Iberia SRL Spain Common Immediate Parent CH$ Other services Less than 90 days — 35 — — Foreign Enel Iberia SRL Spain Common Immediate Parent Euros Other services Less than 90 days 883,576 820,642 — — Foreign E-Distribuzione Spa Italy Common Immediate Parent Euros Other services Less than 90 days 49,488 336,814 — — Foreign Enel Produzione IT Italy Common Immediate Parent Euros Other services Less than 90 days 6,043,110 7,482,038 — — Foreign Enel Energía Italy Common Immediate Parent Euros Other services Less than 90 days 452,289 452,289 — — 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Joint venture CH$ Tolls Less than 90 days 13,887 13,887 — — Foreign Enel Green Power Spain SL Spain Common Immediate Parent Euros Other services Less than 90 days 352,233 217,859 — — Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Other services Less than 90 days 1,099,133 2,258,059 — — Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Commodity derivatives Less than 90 days 9,295,836 9,849,260 — — Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Technical services Less than 90 days 2,857,244 — — — Foreign Enel S.p.A. Italy Parent CH$ Dividends Less than 90 days 35,863,042 67,197,814 — — Foreign Enel S.p.A. Italy Parent Euros Dividends Less than 90 days 19,155,829 — — — Foreign Enel S.p.A. Italy Parent Euros Technical services Less than 90 days 6,982,284 2,825,084 — — Foreign Enel S.p.A. Italy Parent Euros Other services Less than 90 days 2,965,604 3,041,172 — — Foreign Enel Italy SrL IT Italy Common Immediate Parent Euros Technical services Less than 90 days 6,438,614 1,528,308 — — Foreign Enel Italy SrL IT Italy Common Immediate Parent Euros Other services Less than 90 days 9,115,709 10,658,407 — — Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 17,950 13,579 — — Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Euros Technical services Less than 90 days 3,017,847 2,199,811 — — Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Euros Other services Less than 90 days 681,544 — — — Foreign Enel Green Power Spa IT Italy Common Immediate Parent US$ Other services Less than 90 days 6,328,568 — — — Foreign Enel Green Power Spa IT Italy Common Immediate Parent Euros Technical services Less than 90 days 19,758,903 13,743,624 — — Foreign Enel Green Power Spa IT Italy Common Immediate Parent Euros Other services Less than 90 days 8,514,576 16,609,801 — — Foreign Enel Green Power North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 248,051 149,591 — — Foreign Enel Finance International NV (*) Holland Common Immediate Parent US$ Loan Less than 90 days — 123,979 781,875,824 447,193,802 Foreign Enel Finance International NV Holland Common Immediate Parent US$ Other services Less than 90 days 134,278 — — — 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CH$ Other services Less than 90 days 344,877 370,028 — — 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent US$ Other services Less than 90 days 107,037 — — — 76.364.085-K Energía Marina S.P.A Chile Common Immediate Parent CH$ Other services Less than 90 days 2,357 — — — Foreign Enel X S.R.L. Italy Common Immediate Parent Euros Other services Less than 90 days 198,815 40,656 — — Foreign Enel X S.R.L. Italy Common Immediate Parent Euros Technical services Less than 90 days 147,488 — — — Foreign Cesi S.p.A. Italy Common Immediate Parent Euros Other services Less than 90 days 890,343 458,228 — — Foreign Tecnatom SA Italy Common Immediate Parent Euros Other services Less than 90 days 29,093 102,962 — — Foreign Enel Green Power Spa GLO Italy Common Immediate Parent Euros Other services Less than 90 days 8,418,481 7,772,801 — — Total 159,809,887 157,936,325 784,373,484 447,193,802 (*)See section d) below. c) Significant transactions and effects on income/expenses: The details of the most significant non-consolidated transactions with related parties, are as follows: For the years ended December 31, 2019 2018 2017 Taxpayer ID No. Company Relationship Country Description of transaction ThCh$ ThCh$ ThCh$ Foreign Endesa Energía S.A. Common Immediate Parent Spain Gas sales - - 10,394,146 94.271.000-3 Enel Américas S.A. Common Immediate Parent Chile Other services rendered 4,748,244 5,071,453 4,737,522 76.418.940-K GNL Chile S.A. Associate Chile Fuel consumption ( 99,801,403 ) ( 131,521,989 ) ( 194,163,392 ) 96.524.140-K Empresa Eléctrica Panguipulli S.A. Common Immediate Parent Chile Energy purchase - ( 1,954,523 ) ( 11,758,824 ) 76.321.458-3 Sociedad Almeyda Solar Spa Common Immediate Parent Chile Energy purchase - ( 1,052,840 ) ( 4,306,145 ) 76.052.206-6 Parque Eolico Valle de los Vientos SpA Common Immediate Parent Chile Energy purchase - ( 3,349,525 ) ( 16,630,422 ) Foreign Enel S.p.A. Parent Italy Technical services ( 4,110,257 ) - - Foreign Enel Italy Servizi Common Immediate Parent Italy Other fixed operating expenses - - ( 2,230,668 ) 76.412.562-2 Enel Green Power del Sur SPA Common Immediate Parent Chile Energy purchase - ( 30,205,373 ) ( 104,865,684 ) 76.179.024-2 Parque Eolico Tal Tal SpA Common Immediate Parent Chile Energy purchase - ( 4,448,833 ) ( 25,959,608 ) Foreign Enel Global Trading S.p.A. Common Immediate Parent Italy Commodity derivatives ( 12,118,800 ) 7,584,772 18,311,343 Foreign Enel Global Trading S.p.A. Common Immediate Parent Italy Technical services ( 1,634,832 ) ( 1,213,116 ) - Foreign Enel Global Trading S.p.A. Common Immediate Parent Italy Gas sales 58,352,346 34,701,425 21,484,590 Foreign Enel Finance International NV Common Immediate Parent Holland Financial expense ( 31,328,749 ) ( 23,253,535 ) - Foreign Enel Italy Servizi Common Immediate Parent Italy Other fixed operating expenses - - ( 2,230,668 ) Foreign Enel Italy IT Common Immediate Parent Italy Other fixed operating expenses - ( 4,111,525 ) - Foreign Enel Italy IT Common Immediate Parent Italy Other services rendered ( 3,089,599 ) - - Foreign Enel Italy S.R.L. GLO Common Immediate Parent Italy Technical services ( 2,750,306 ) - - Foreign Enel Global Thermal Generation S.r.l. Common Immediate Parent Italy Other fixed operating expenses - ( 1,845,425 ) - Foreign Enel Green Power Spa IT Common Immediate Parent Italy Technical services - ( 4,257,363 ) - Foreign Enel Green Power Spa GLO Common Immediate Parent Italy Technical services ( 3,898,762 ) - - d) Significant transactions i) Enel Chile · On December 21, 2018, Enel Finance International NV provided Enel Chile S.A. a loan in US dollars for an amount committed up to US$400 million, with a variable interest rate of LIBOR 6M plus a margin of 1.00% annually, with semiannual interest payment and maturity on December 21, 2022. The credit agreement allowed Enel Chile S.A. to make indefinite draws for up to the amount committed until June 21, 2019, defined as the availability period, during which Enel Chile S.A. must pay an annual availability fee equivalent to 35% of the margin on the undrawn amount. On June 3 and 18, 2019, Enel Chile S.A. drew down that line in its entirety. The loan contracted by Enel Chile S.A. has a bullet maturity and can be repaid in advance, partially or totally, the commitment and interest accrued without any other fine than ”bankruptcy costs“, by delivering to Enel Finance International NV a duly anticipated pay-off request completed no later than 10 (ten) days prior to the prepayment date. Enel Chile S.A. will not have to pay any “bankruptcy costs” if the repayment date falls on an interest payment date. The balance of the debt as of December 31, 2019 amounts to US$ 400 million equivalent to ThCh$ 299,496,000. As of December 31, 2018 the line was available but not drawn. · In June 2019, Enel Chile S.A. entered into a revolving committed credit line with Enel Finance International NV in US dollars for a total of US$50 million, with a variable interest rate of LIBOR 1M, 3M or 6M plus a margin of 0.90 %, with monthly, quarterly or semi-annual interest payments and expiration on December 24, 2024. During the availability period, Enel Chile S.A. pays an annual availability commission equivalent to 0.25% on the undrawn amount. This revolving line of credit has no guarantees and the commitment can be repaid, partially or totally, together with the accrued interest or any other cost under the agreement. Enel Chile S.A. may require renewal of the draft by sending a letter 5 (five) business days before the obligation expires. As of December 31, 2019 this line was not drawn. · In May 2017, Enel Chile S.A. received short-term loans of ThCh$150,000,000 from Enel Américas S.A., which were fully amortized on May 25, 2017. These loans accrued a TIP rate of interest + 0.05% per month. As of December 31, 2018, there was no outstanding debt between Enel Chile S.A. and Enel Américas S.A. ii) EGP Chile Group · On December 31, 2015, Enel Green Power International B.V. (currently Enel Finance International NV) provided Parque Eólico Renaico SpA (currently Enel Green Power del Sur SpA.) a US dollar loan for a committed amount of up to US$650 million, at a variable interest rate of LIBOR 6M plus a margin of 4.94% per annum, with semi-annual interest payment and maturity on December 31, 2027. The credit agreement allowed Enel Green Power del Sur SpA to make indefinite draws up to the amount committed until December 31, 2017, defined as the availability period, during which Enel Green Power del Sur SpA paid an annual availability fee equivalent to 35% of the margin on the undrawn amount. On June 28, 2019, the interest rate margin was reduced to 1.40% annually. Additionally, on December 31, 2019, the parties agreed to modify the credit agreement again, under the following terms: (i) modification of the interest rate, from variable to fixed, establishing it at 2.82% per year, with semi-annual interest payment; and (ii) modification of the semi-annual amortization schedule, beginning on June 30, 2024, maintaining the voluntary prepayment with bankruptcy cost (modifying the definition of bankruptcy cost); and expiration on December 31, 2027. The balance of the debt at December 31, 2019 amounts to US$644 million equivalent to ThCh$482,466,643 (US$644 million at December 31, 2018 and 2017 equivalent to ThCh$447,431,880 and ThCh$395,899,000, repectively). This is a bullet credit and is guaranteed by Enel Chile S.A. · On February 25, 2011, Enel Green Power International B.V. (currently Enel Finance International NV) formalized with Enel Latin America Ltda. (currently Enel Green Power Chile) a mercantile mandate contract by means of which it could invest the funds and surpluses generated by the latter. The currency used for the movements was the U.S. dollar. This contract established annual extensions, and has been renewed and periodically amended. The conditions in force during 2018 of the contract established a variable interest rate of LIBOR 1M plus a margin of 0.80% per annum, the balance placed by Enel Green Power Chile for investment at December 31, 2019 amounted to US$0.00 million (US$1,453 million as of December 31, 2018 equivalent to ThCh$1,008,208 and US$78 million at December 31, 2017 equivalent to ThCh$47,950,500). The contract expired on December 31, 2018 and was not renewed. On February 12, 2019 the amount was repaid in full. · On December 20, 2012, Enel Green Power International B.V. (currently Enel Finance International NV) formalized with Enel Latin America Ltda. (currently Enel Green Power Chile) a revolving credit line in U.S. dollars for an amount of up to US$250 million, at a variable interest rate of LIBOR 3M plus a margin of 2.50% per annum, with quarterly interest payment and maturity on December 31, 2013. This contract was renewed annually and increased during 2017 to US$ 800 million and during the first half of 2017, the amount committed was reduced to US$50 million. On March 28, 2018, the interest rate margin was reduced to 1.35% per annum. On October 10, 2018, the contract, which did not have associated debts, was terminated early. 12.2 Board of Directors and Key management personnel The Company 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 Board of Directors as of December 31, 2019, was elected at the Ordinary Shareholders Meeting held on April 25, 2018. At a Board Meeting held on the same date the current Board Chairman and Secretary were appointed. a) Account receivable and payable and other transactions · Accounts receivable and payable There are no outstanding amounts receivable or payable between the Company and the members or the Board of Directors and key management personnel. · Other transactions No transactions other than the payment of compensation have taken place between the Company and the members of the Board of Directors and key management personnel and other than transactions in the normal course of business-electricity supply. 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 Ordinary Shareholders Meeting of the Company. The compensantion consists of paying to each member of the Board of Director a monthly payment, one part in a fixed monthly fee and another part dependent on meetings attended. This compensation is broken down as follows: - UF 216 as a fixed monthly fee in all event; and - UF 79.2 as a per diem for each Board meeting attended, all with a maximum of sixteen sessions in total, whether ordinary or extraordinary, in the corresponding year. As stated in the by-laws, the compensation for the Chairman of the Board will be double that of a Director. If any Director of the Company is a member of more than one Board in any Chilean or foreign subsidiaries and/or associates, or holds the position of director or advisor in other Chilean or foreign companies or legal entities in which Enel Chile S.A. has a direct or indirect ownership interest, that Director can be compensated for his/her participation in only one of those Boards or Management Committees. The executive officers of the Company and/or any of its Chilean or foreign subsidiaries or associates will not receive any compensation or per diem if they hold the position of director in any of the Chilean or foreign subsidiaries or associates of the Company. Nevertheless, the executives may receive such compensation or per diem, provided there is prior express authorization, as a payment in advance of the variable portion of their compensation received from the respective companies through which they are employed. Directors’ Committee: Each member will be paid a monthly compensation, one part in 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, and - UF 26.4 as a per diem for each Board meeting attended, all with a maximum of sixteen sessions in total, whether ordinary or extraordinary, in the corresponding 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, 2019, 2018 and 2017: 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 Herman Chadwick Piñera Chairman January - December 2018 181,789 — — Foreign Giulio Fazio Director January - December 2018 — — — 4.461.192-9 Fernan 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 Foreign Daniele Caprini Director April - December 2018 — — — Foreign Salvatore Bernabei Director January - December 2018 — — — Total 454,471 — 93,054 December 31, 2017 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 2016 178,065 — — Foreigner Giulio Fazio Director January - December 2016 — — — 4.461.192-9 Fernán Gazmuri Plaza Director January - December 2016 89,032 — 28,504 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2016 89,032 — 28,504 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2016 89,032 — 28,504 Foreigner Vicenzo Ranieri Director January - December 2016 — — — Foreigner Salvatore Bernabei Director January - December 2016 — — — Total 445,161 — 85,512 c) Guarantees given by the Company in favor of the directors No guarantees have been given in favor of the directors. 12.3 Compensation for key management personnel Key personnel for Enel Chile as of December 31, 2019 are represented by the following people: Key Management Personnel Taxpayer ID No. Name Position Foreign Paolo Palloti (1) Chief Executive Officer Foreign Giuseppe Turchiarelli (2) Administration, Finance and Control Officer 13.903.626-3 Liliana Schnaidt Hagedorn (3) Human Resources and Organization Manager 6.973.465-0 Domingo Valdés Prieto General Counsel and Secretary to the Board Foreign Raffaele Cutrignelli Internal Audit Officer (1) (2) (3) The executives listed below were part of the Company’s key personnel until September 24, 2019; - Mónica De Martino, Regulation Officer - Antonella Pellegrini, Sustainability and Community Manager - Claudia Navarrete Campos, Planning and Control Officer - Alison Dunsmore M., Services Officer - Pedro Urzúa Frei, Institutional Relations Officer - Raúl Puentes Barrera, Supply Manager - Andrés Pinto Bonta, Security Manager - Ángel Barrios Romo, ICT Officer 12.4 Incentive plans for key management personnel The Company 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 Company. The plan provides for a range of bonus amounts according to seniority level. The bonuses paid to the executives consist of a certain multiple of monthly gross compensation. Compensation received by key management personnel in the aggregate is the following: December 31, 2019 December 31, 2018 December 31, 2017 ThCh$ ThCh$ ThCh$ Cash compensation 2,357,252 2,959,019 2,959,467 Short-term benefits for employees 207,391 497,424 557,122 Other long-term benefits 2,088 322,865 183,453 Total 2,566,731 3,779,308 3,700,042 a) Guarantees established by the Company in favor of key management personnel No guarantees have been given in favor of key management personnel. 12.5 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 Company.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2019
INVENTORIES.
Inventories	13. INVENTORIES. The detail of inventories as of December 31, 2019 and 2018, is as follows: As of December 31, 2019 2018 Classes of Inventories ThCh$ ThCh$ Supplies for Production 18,352,465 35,786,830 Gas 2,287,934 7,115,226 Oil 3,888,712 2,684,688 Coal 12,175,819 25,986,916 Supplies for projects and spare parts 18,073,825 12,951,779 Electrical materials 3,245,960 8,223,034 Total 39,672,250 56,961,643 There are no inventories pledged as security for liabilities. For the years ended December 31, 2019, 2018 and 2017, the raw materials and supplies recognized as fuel costs amounted to ThCh$230,944,415, ThCh$231,028,169 and ThCh$280,739,362, respectively. See Note 29.

Current Tax Assets and Liabilit

Current Tax Assets and Liabilities	12 Months Ended
	Dec. 31, 2019
CURRENT TAX ASSETS AND LIABILITIES
Current Tax Assets and Liabilities	14. CURRENT TAX ASSETS AND LIABILITIES. The detail of current tax assets and liabilities as of December 31, 2019 and 2018, is as follows: As of December 31, 2019 2018 Tax Receivables ThCh$ ThCh$ Monthly provisional tax payments 38,896,220 52,950,410 Tax credit for absorbed profits 85,708,128 46,343,265 Tax credit for training expenses 2,668,941 470,142 Total 127,273,289 99,763,817 The details of accounts payable associated with current taxes as of December 31, 2019 and 2018 are as follows: As of December 31, 2019 2018 Tax Payables ThCh$ ThCh$ Income tax 17,995,833 17,677,920 Total 17,995,833 17,677,920

Investments Accounted for Using

Investments Accounted for Using the Equity Method	12 Months Ended
	Dec. 31, 2019
INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD.
Investments Accounted for Using the Equity Method	15. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD. 15.1. Investments accounted for using the equity method a. The following tables present the changes in investments in associates and joint ventures accounted for using the equity method as of December 31, 2019 and 2018: Share of Foreign Other Balance as Balance as of Profit Dividends Currency Increase of Taxpayer ID Ownership 1-1-2019 Additions (Loss) Declared Translation (Decrease) 12-31-2019 Number Associates and Joint Ventures Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ 76.418.940-K GNL Chile S.A. Chile U.S. dollar 3,052,983 — (254,132) (1,518,880) 130,235 — 1,410,206 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Chilean peso 9,473,711 — 695,437 (4,069,920) — — 6,099,228 76.014.570-K Enel Argentina S.A. Argentina Angentine peso 300,198 — 104,335 — (95,726) 93,101 401,908 76.364.085-K Energía Marina SpA. Chile Chilean peso 46,639 131,647 (179,551) — — 18,511 17,246 TOTAL 12,873,531 131,647 366,089 (5,588,800) 34,509 111,612 7,928,588 Share of Foreign Other Other Balance as Balance as of Profit Dividends Currency Comprehensive Increase of Taxpayer ID Ownership 1-1-2018 Additions (Loss) Declared Translation Income (Decrease) 12-31-2018 Number Associates and Joint Ventures Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ 76.418.940-K GNL Chile S.A. Chile U.S. dollar 3,783,316 — 805,972 (1,884,140) 347,835 — — 3,052,983 76.652.400-1 Centrales Hidroeléctricas De Aysén S.A. (*) Chile Chilean peso — 4,205,233 — 1,734,508 — — — (5,939,741) — 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Chilean peso 8,818,759 — 654,952 — — — — 9,473,711 Foreign Enel Argentina S.A. Argentina Argentine peso 105,146 — 86,021 — (108,069) — 217,100 300,198 76.364.085-K Energía Marina SpA Chile Chilean peso — (91,213) 137,852 46,639 TOTAL 16,912,454 — 3,190,240 (1,884,140) 239,766 — (5,584,789) 12,873,531 (*) b. Centrales Hidroeléctricas de Aysén S.A. (Hidroaysén) In May 2014, the Committee of Ministers revoked the Environmental Qualification Resolution (“RCA”) of the Centrales Hidroeléctricas de Aysén S.A. project, in which the Company participated by accepting some of the claims filed against this project. It is a public information that this decision was resorted before the Environmental Courts in Valdivia and Santiago. On January 28, 2015, it was made public that the water rights request made by Centrales Hidroeléctricas de Aysén S.A. has been partially rejected in 2008. The Company had expressed its intention to promote at Centrales Hidroeléctricas de Aysén S.A. the defense for water rights and the environmental qualification granted to the project in the corresponding instances, continuing with the judicial actions already started or implementing new administrative or judicial actions that are necessary to this end, and it maintained the belief that water resources of the Aysén region are important for the energy development of the country. Nevertheless, there was uncertainty on the recoverability of the investment made so far at Centrales Hidroeléctricas de Aysén S.A., since it depended both on judicial decisions and on definitions in the energy agenda which could not been foreseen , consequently the investment was not included in the portfolio of the Company’s immediate projects. At closing date of fiscal year 2014, the Company recognized an impairment of its participation in Centrales Hidroeléctricas de Aysén S.A. amounting to ThCh$ 69,066,857. On December 7, 2017, an extraordinary meeting of shareholders of Centrales Hidroeléctricas de Aysén S.A. was held, in which the early dissolution of the same was agreed and how the liquidation process of the assets of the company will be carried out. The liquidation process contemplated a distribution of assets to its shareholders Enel Generación and Colbún according to their stakes of 51% and 49% respectively. This liquidation process and the corresponding distribution took place on September 7, 2018. The following was the individual balance sheet considered for the liquidation process: CENTRALES HIDROELECTRICAS DE AYSEN S.A. Liquidation Balance Recognized by Enel Generación (51%) 09-07-18 09-07-18 ASSETS ThCh$ ThCh$ CURRENT ASSETS Cash and cash equivalents Current accounts receivable from related parties TOTAL CURRENT ASSETS NON-CURRENT ASSETS Property, plant and equipment TOTAL NON-CURRENT ASSETS TOTAL ASSETS 09-07-18 09-07-18 CURRENT LIABILITIES ThCh$ ThCh$ Other current provisions TOTAL CURRENT LIABILITIES EQUITY Issued capital Retained earnings TOTAL EQUITY TOTAL LIABILITIES AND EQUITY 15.2. Investments with significant influence The following tables show financial information as of December 31, 2019 and 2018, from the financial statements of the investments in associates where the Group has significant influence: As of December 31, 2019 % Ownership Current Assets Non-current Assets Current Liabilities Non-current Liabilities 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) As of December 31, 2018 % 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 75,571,058 267,884 66,679,077 — 707,597,382 (705,179,062) 2,418,157 1,043,609 3,461,766 None of our associates have published price quotations 15.3. Joint ventures The following tables present information from the statement of financial position and statement of income as of and for the year ended December 31, 2019 and 2018, on the main joint ventures: Centrales Hidroeléctricas Transmisora Eléctrica de Aysén S.A. (*) de Quillota Ltda. (—)% (—)% 50.0% 50.0% 12-31-2019 12-31-2018 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ Total current assets — — 3,346,667 9,360,553 Total non-current assets — — 10,834,220 11,530,788 Total current liabilities — — 365,640 235,264 Total non-current liabilities — — 1,616,791 1,708,660 Cash and cash equivalents — — 2,403,904 8,185,391 Revenues — — 3,191,566 3,003,757 Other fixed operating expenses — (125,182) (768,866) (758,607) Depreciation and amortization expense — — (782,800) (784,364) Other Income — 3,526,179 6,087 — Interest income — — 152,370 187,601 Income tax expense — — (407,478) (349,848) Profit (loss) — 3,400,997 1,390,879 1,309,903 Other comprehensive income — — — — Comprehensive income — 3,400,997 1,390,879 1,309,903 (*) See Note 15.1.b. - There are no significant commitments and contingencies, or restrictions on funds transfers to the owners of associates and joint ventures.

Intangible Assets Other than Go

Intangible Assets Other than Goodwill	12 Months Ended
	Dec. 31, 2019
INTANGIBLE ASSETS OTHER THAN GOODWILL.
Intangible Assets Other than Goodwill	16. INTANGIBLE ASSETS OTHER THAN GOODWILL. The following table presents intangible assets as of December 31, 2019 and 2018: As of December 31, 2019 2018 Intangible Assets, Net ThCh$ ThCh$ Intangible Assets, Net 132,278,593 115,372,393 Easements and water rights 17,352,892 17,736,954 Concessions 26,156,419 25,953,878 Patents, Registered Trademarks and Other Rights 316,970 7,394 Computer software 76,162,800 60,067,635 Other identifiable intangible assets 12,289,512 11,606,532 2019 2018 Intangible Assets, Gross ThCh$ ThCh$ Intangible Assets, Gross 229,944,365 202,377,094 Easements and water rights 22,553,618 22,011,401 Concessions 34,718,676 32,055,825 Patents, Registered Trademarks and Other Rights 771,002 12,484 Computer software 156,836,017 133,931,876 Other identifiable intangible assets 15,065,052 14,365,508 2019 2018 Intangible Assets, Amortization and Impairment ThCh$ ThCh$ Accumulated Amortization and Impairment, Total (97,665,772) (87,004,701) Easements and water rights (5,200,726) (4,274,447) Concessions (8,562,257) (6,101,947) Patents, Registered Trademarks and Other Rights (454,032) (5,090) Computer software (80,673,217) (73,864,241) Other identifiable intangible assets (2,775,540) (2,758,976) The reconciliations of the carrying amounts of intangible assets as of December 31, 2019 and 2018 are as follows: Easements Concessions Patents, Registered Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance 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 (decreases) other than from business combinations — — — 25,208,199 — 25,208,199 Increase (decrease) from exchange differences, net 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 December 31, 2019 17,352,892 26,156,419 316,970 76,162,800 12,289,512 132,278,593 Easements Concessions Patents, Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance January 1, 2018 12,608,950 — — 38,254,793 4,307,161 55,170,904 Changes in identifiable intangible assets Increases (decreases) other than from business combinations 2,721 — 12,484 25,759,609 — 25,774,814 Acquisitions made through business combination — 30,077,961 — 2,113,933 9,594,267 41,786,161 Increase (decrease) from exchange differences, net 769,421 2,033,761 — 4,111,021 — 6,914,203 Amortization (1) (347,397) (4,109,453) (5,090) (7,750,745) (2,723) (12,215,408) Increases (decreases) from transfers and other changes 5,213,240 (2,048,391) — (866,790) (2,298,059) — Increases (decreases) from transfers 5,213,240 (2,048,391) — (866,790) (2,298,059) — Disposals and removal from service (509,981) — — — — (509,981) Removals from service (509,981) — — — — (509,981) Argentina Hyperinflation Effect — — — — 180 180 Increase (decrease) — — — (1,554,186) 5,706 (1,548,480) Total changes in identifiable intangible assets 5,128,004 25,953,878 7,394 21,812,842 7,299,371 60,201,489 Closing balance December 31, 2018 17,736,954 25,953,878 7,394 60,067,635 11,606,532 115,372,393 (1) See Note 31. According to the Group management’s estimates and projections, the expected future cash flows attributable to intangible assets allow the recovery of the carrying amount of these assets recorded as of December 31, 2019 (see Note 3.e).

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2019
GOODWILL.
Goodwill	17. GOODWILL. The following table shows goodwill by the Cash-Generating Unit or group of Cash-Generating Units to which it belongs and changes as of December 31, 2019 and 2018: Opening Balance Business Foreign Closing Balance 12/31/2018 Transfer absortion Foreign currency difference Closing Company Cash Generating Unit ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Empresa Eléctrica de Colina Ltda. Empresa Eléctrica de Colina Ltda. 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. Enel Generación Chile 731,782,459 — — 731,782,459 24,860,356 — 756,642,815 GasAtacama Chile S.A. Enel Generación Chile 24,860,356 — — 24,860,356 (24,860,356) — — Empresa Eléctrica Panguipulli S.A. Enel Green Power Chile Ltda. — 17,543,347 2,603,476 20,146,823 — 1,673,580 21,820,403 Geotérmica del Norte Enel Green Power Chile Ltda. — 65,871 9,775 75,646 — 6,284 81,930 Parque Eólico Talinay Oriente Enel Green Power Chile Ltda. — 6,587,064 977,537 7,564,601 — 628,385 8,192,986 Total 887,257,655 24,196,282 3,590,788 915,044,725 — 2,308,249 917,352,974 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 recovery of its carrying amount as of December 31, 2019 (see Note 3.e). The origin of the goodwill is detailed below: 1.- Empresa Eléctrica de Colina Ltda. On December 31, 1996, Enel Distribución Chile S.A. acquired 100% of Empresa Eléctrica de Colina Ltda. from the investment company Saint Thomas S.A., which is neither directly nor indirectly related to Enel Distribución Chile S.A. 2.- Enel Distribución Chile S.A. In November 2000, Enersis S.A. (now Enel Américas S.A.) acquired an additional 25.4% ownership interest in Enel Distribución Chile S.A. in a public bidding process, reaching a 99.99% ownership interest in the company. 3.- Enel Generación Chile S.A. On May 11, 1999, Enersis S.A. (now Enel Américas S.A.) acquired an additional 35% in Enel Generación Chile S.A. in a public bidding process on the Santiago Stock Exchange and by buying shares in the U.S. (30% and 5%, respectively), reaching a 60% ownership interest in the generation company. 4.- GasAtacama Chile S.A. (Formerly named Inversiones GasAtacama Holding Limitada) On April 22, 2014, Enel Generación Chile S.A. acquired the remaining 50% equity interest in GasAtacama Chile S.A that was owned at that time by Southern Cross Latin America Private Equity Fund III L.P. 5.- Empresa Eléctrica Pangue S.A. (Currently named GasAtacama Chile S.A.) On July 12, 2002, Enel Generación Chile S.A. acquired 2.51% of the shares of Empresa Eléctrica Pangue S.A. through a put option held 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 company being the surviving entity. 6.- Compañía Eléctrica San Isidro S.A. (Currently named GasAtacama Chile S.A.) On August 11, 2005, Enel Generación Chile S.A. acquired the shares of Inversiones Lo Venecia Ltda., whose only asset was a 25% interest in Compañía Eléctrica San Isidro S.A. (acquisition of non-controlling interests). On September 1, 2013, Compañía Eléctrica San Isidro S.A. was merged with Endesa Eco S.A., the latter being the surviving entity. On November 1, 2013, Endesa Eco S.A. was merged with Compañía Eléctrica Tarapacá, the latter being the surviving entity. On November 1, 2016, Compañía Eléctrica Tarapacá S.A. was merged with GasAtacama Chile S.A. with the latter being the surviving company. 7.- Enel Green Power Chile Ltda. On March 26, 2013, Enel Green Power Chile Ltda. acquired an ownership interest in Parque Eólico Talinay Oriente S.A..On August 6, 2001, Enel Green Power Chile Ltda. acquired an ownership interest in Empresa Eléctrica Panguipulli S.A. and Empresa Eléctrica Puyehue S.A., which later merged with Panguipulli, with the latter being the legal surviving company.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2019
PROPERTY, PLANT AND EQUIPMENT
Property, Plant and Equipment	18. PROPERTY, PLANT AND EQUIPMENT. The following table shows property, plant and equipment as of December 31, 2019 and 2018: As of December 31, 2019 2018 Classes of Property, Plant and Equipment, Net ThCh$ ThCh$ Property, Plant and Equipment, Net 5,360,319,624 5,308,647,633 Construction in progress 1,048,988,931 862,274,093 Land 77,754,923 74,753,283 Buildings 420,319,759 384,027,047 Plant and equipment 2,895,992,861 3,143,869,929 Network infrastructure 809,428,974 764,095,247 Fixtures and fittings 47,758,908 55,091,617 Other property, plant and equipment under lease 4,231,758 6,881,745 Right-of-use assets 55,843,510 17,654,672 As of December 31, 2019 2018 Classes of Property, Plant and Equipment, Gross ThCh$ ThCh$ Property, Plant and Equipment, Gross 9,296,027,122 8,747,182,818 Construction in progress 1,048,988,931 862,274,093 Land 77,754,923 74,753,283 Buildings 531,250,194 470,833,768 Plant and equipment 6,002,160,751 5,824,130,347 Network infrastructure 1,396,996,724 1,318,208,218 Fixtures and fittings 150,242,089 151,363,603 Other property, plant and equipment under lease 18,259,978 16,859,475 Right-of-use assets 70,373,532 28,760,031 As of December 31, 2019 2018 Classes of Accumulated Depreciation and Impairment in Property, Plant and Equipment ThCh$ ThCh$ Total Accumulated Depreciation and Impairment in (3,935,707,498) (3,438,535,185) Buildings ( 110,930,435 ) (86,806,721) Plant and equipment ( 3,106,167,890 ) (2,680,260,418) Network infrastructure ( 587,567,750 ) (554,112,971) Fixtures and fittings ( 102,483,181 ) (96,271,986) Other property, plant and equipment under lease ( 14,028,220 ) (9,977,730) Right-of-use assets ( 14,530,022 ) ( 11,105,359 ) The detail and changes in property, plant, and equipment at December 31, 2019 and 2018, are as follows: Construction Land Buildings Generation Network Fixtures and Other Property, Right of use Property, Plant and Changes in 2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance 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 17,654,672 5,308,647,633 Changes: - - - - Effects first application IFRS 16 - - - - - - - 28,814,142 28,814,142 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 1,537,867 127,073,449 Depreciation (1) - - ( 17,944,173 ) ( 159,163,293 ) ( 34,964,877 ) ( 6,299,395 ) ( 3,011,561 ) ( 3,321,268 ) ( 224,704,567 ) 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) for transfers (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 from service — - (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) - 11,158,097 83,996,486 Argentina Hyperinflationary Effect (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) 38,188,838 51,671,991 Closing balance 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 55,843,510 5,360,319,624 Construction Land Buildings Generation Network Fixtures and Other Property, Finance Lease Asset Property, Plant and Changes in 2018 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance January 1, 2018 666,590,543 67,485,380 12,793,641 2,080,903,064 683,120,815 56,284,762 — 18,508,932 3,585,687,137 Changes: Increases other than from business combinations 321,183,398 5,893,739 1,000,411 1,638,436 2,455 935,982 143,120 — 330,797,541 Acquisitions through business combinations 44,088,988 623,052 329,152,208 941,871,560 47,727,579 2,018,760 6,904,334 368,008 1,372,754,489 Increases (decreases) from exchange differences, net 14,849,366 50,004 46,040,633 128,411,179 6,928,376 338,619 982,330 22,471 197,622,978 Depreciation (1) — — (13,795,237) (149,247,118) (32,011,964) (4,935,435) (2,105,472) (857,075) (202,952,301) Increases (decreases) from transfers and other changes (193,895,804) — 12,450,092 146,447,942 32,105,004 2,692,671 222,027 (21,932) — Increases (decreases) for transfers (193,895,804) — 12,450,092 146,447,942 32,105,004 2,692,671 222,027 (21,932) — Disposals and removals from service — (5,411) — (90,513) (1,132,103) (1) - — (1,228,028) Disposals — — — (90,513) (436,956) — - — (527,469) Removals from service — (5,411) — — (695,147) (1) - — (700,559) Other increases (decreases) 9,457,602 706,519 (3,614,701) (7,977,450) 27,355,085 (2,243,741) 735,406 (365,732) 24,052,988 Argentina Hyperinflationary Effect — — — 1,912,829 — — - — 1,912,829 Total changes 195,683,550 7,267,903 371,233,406 1,062,966,865 80,974,432 (1,193,145) 6,881,745 (854,260) 1,722,960,496 Closing balance December 31, 2018 862,274,093 74,753,283 384,027,047 3,143,869,929 764,095,247 55,091,617 6,881,745 17,654,672 5,308,647,633 (1) See Note 31. (2) See paragraph x) in section e) Other information, of this Note. (3) See Note 25. Additional information on property, plant and equipment, net a) Main investments Major additions to property, plant and equipment are investments in operating plants and new projects amounting to ThCh$320,298,296 for the year ended December 31, 2019 (ThCh$330,797,541 for the year ended December 31, 2018). In the generation business the advances in the new capacity program are included such as the advances in the construction of the Los Cóndores hydroelectric plant, which will use the resources of the Maule Lagoon and will have an installed capacity of approximately 150 MW. Additions related to this project amounted ThCh$91,638,411 for the year ended December 31, 2019 (ThCh$142,578,993 for the year ended December 31, 2018) while in the distribution business, the main investments are extensions and investments in networks to optimize their operation, in order to improve the efficiency and quality of service level, for ThCh$92,392,704 for the year ended December 31, 2019 (ThCh$84,727,900 for the year ended December 31, 2018). In the case of Enel Green Power Chile, the main projects correspond to Cerro Pabellón and Campos de Sol, with investments of ThCh$33,134,694 and ThCh$ 27,506,626 for the year ended December 31, 2019, respectively (ThCh$2,360,416 and ThCh$2,227,380 for the year ended December 31, 2018, respectively), both belonging to the subsidiaries Geotérmica del Norte S.A. and Enel Green Power del Sur SpA. b) Capitalized expenses b.1) Borrowing costs Capitalized borrowing costs were ThCh$9,321,354, ThCh$6,435,646 and ThCh$4,078,463 for the years ended December 31, 2019, 2018 and 2017, respectively (see Note 34). The weighted-average borrowing rate was in the range of 8% and 7.71% for the year ended December 31, 2019 (7.71% and 7.12% for the year ended December 31, 2018). b.2) Employee expenses capitalized Employee expenses capitalized that are directly attributable to constructions in progress were ThCh$17,610,861, ThCh$16,710,963 and ThCh$14,388,987 during the years ended December 31, 2019, 2018 and 2017, respectively. a) Right to use assets The detail of the right-of-use assets as of December 31, 2019 corresponds to the following: Land Other Plants Right-of-use assets, Net Changes in 2019 ThCh$ ThCh$ ThCh$ Opening balance January 1, 2019 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 January 1, 2019 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 December 31, 2019 34,081,799 21,761,711 55,843,510 As of December 31, 2019 and 2018, the main right-of-use assets and lease liabilities relate to the following: - - Additionally, as a result of the application of IFRS 16 (see Notes 2.2.a.i and 3.f) the Group recognized as of January 1, 2019 right-of-use assets related to property, plant and equipment for an amount of ThCh$28,814,142 The present value of future payments derived from such contracts is as follows: As of December 31, 2019 2018 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 7,602,720 1,760,705 5,842,015 2,779,080 612,805 2,166,275 From one to two years 6,234,867 1,719,045 4,515,822 2,779,080 471,998 2,307,082 From two to three years 6,049,847 1,484,321 4,565,526 2,779,080 322,037 2,457,043 From three to four years 8,326,858 1,265,224 7,061,634 7,726,436 180,386 7,546,050 From four to five years 2,964,375 1,180,435 1,783,940 — — — More than five years 38,630,310 8,991,558 29,638,752 — — — Total 69,808,977 16,401,288 53,407,689 16,063,676 1,587,226 14,476,450 d) Short term lease and variable payments on lease The consolidated statement of comprehensive income for the year ended December 31, 2019 includes expenses of ThCh$3,824,195, corresponding to payments for short-term leases in the amount of ThCh$1,995,392 and ThCh$1,828,803 related to variable payments on leases, which are exempted from the application of IFRS 16 (see Notes 2.2.ai and 3.f). As of December 31, 2018, the amount recognized in results was ThCh$ 3,775,007, coming from leases of assets classified as operating leases, according to IAS 17. As of December 31, 2019, the future payments derived from such contracts are as follows: As of December 31, 2019 ThCh$ Less than one year 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 3,485,151 e) Other information (i) As of December 31, 2019 and 2018, the Group had contractual commitments for the acquisition of property, plant and equipment amounting to ThCh$185,457,682 and ThCh$269,176,169, respectively. (ii) As of December 31, 2019 and 2018, the Group does not have property, plant and equipment pledged as security for liabilities. (iii) The Group and its consolidated entities have insurance policies for all risks, earthquake and machinery breakdown and damages for business interruption with a €1,000 million (ThCh$844,140,650) , including business interruption coverage. Additionally, the Group has Civil Liability insurance to meet claims from third parties with a €500 million (ThCh$422,070,325) limit when the demands are a product of the breakdown of any of the dams owned by the Company or its subsidiaries and environmental damages amounting to €20 million (ThCh$16,882,813). The insurance premiums associated with these policies are presented proportionally for each company in the caption “Prepaid expenses”. (iv) The condition of certain assets of our subsidiary Enel Generación Chile S.A. changed, primarily works and infrastructure for facilities built to support power generation in the SIC grid in 1998, due primarily to the installation in the SIC of new thermoelectric plants, the arrival of LNG, and new other projects. As such, a new supply configuration for the upcoming years, in which it is expected that these facilities will not be used. Therefore, in 2009, Enel Generación Chile S.A. recognized an impairment loss of ThCh$43,999,600 for these assets, which is still has not reversed. (v) At the end of 2014, the Group recognized an impairment loss of ThCh$12,581,947 related to the Punta Alcalde project. This impairment loss was triggered because the current definition of the project is not fully aligned with the strategy that the Company is reformulating; particularly, with regard to technological leadership, and to community and environmental sustainability. The Company has decided to suspend the project as its profitability is still unclear (see Note 3.e). (vi) As of December 31, 2015, Enel Generación Chile S.A. recognized an impairment loss of ThCh$2,522,445 related to the Waiwen wind project. This loss was a result of new assessment of the feasibility of the project performed by the Company and a conclusion that, under existing conditions to date, its profitability is uncertain. (vii) In line with its sustainability strategy and in order to develop community relationships, Enel Generación Chile S.A. has decided to research new design alternatives for the Neltume project, in particular regarding the issue of the discharge of Lake Neltume, which has been raised by the communities in the various instances of dialogue. To start a new phase of research of an alternative project, which includes the discharge of water on the Fuy River in late December 2015, the Company withdrew the Environmental Impact Study. This decision applies only to the portion of the Neltume project related to the power plant and not to portion related to the transmission project, which continues its course on handling in the Environmental Assessment Service. As a result of the above, as of December 31, 2015, Enel Generación Chile S.A. recognized a loss of ThCh$2,706,830, associated with the write down of certain assets related to Environmental Impact Study, which has been withdrawn and to other studies directly linked to the old design of assets. Consequently, in line with the new sustainability strategy and as a result of sustained dialog with the communities, Enel Generación Chile’s projects in the territory, namely Neltume and Choshuenco, have good prospects from a social community point of view. Nonetheless, given the current condition of the Chilean electricity market, expected profitability of the Neltume and Choshuenco projects is lower than the total capitalized investment in them. As a result, at the end of 2016, Enel Generación Chile recognized an impairment loss of ThCh$20,459,461 associated with the Neltume project and ThCh$3,748,124 associated with the Choshuenco project. At the end of 2017, after a deep analysis during the last months, Enel Generación Chile determined to abandon the Neltume project; a decision justified mainly by the high-sustained competitiveness in the Chilean electricity market, which was ratified in November 2017 with the result of the last tender of Electric Distributors. Added to the above, there is the time associated with developing the alternative water discharge, considering a period of no less than 5 years, given the necessity to request and obtain a transfer of the current water right and commission a new Envorimental Impact Study. The abandonment implied the recognition of a ThCh$21,975,641 loss, with the purpose of reducing to zero the net book value of the assets associated with the project. Additionally, the Company also decided to abandon the Choshuenco project, mainly because the strong synergies considered with the Neltume hydroelectric project would not exist anymore and make it not viable. This decision involved recognizing a loss of ThCh$3,130,270, with the purpose of reducing the net book value of the assets associated with the project to zero. (viii) On August 31, 2016, Enel Generación Chile S.A. decided to withdraw from the water rights associated with the Bardón, Chillan 1, Chillan 2, Futaleufú, Hechún and Puelo hydroelectric projects. This decision was made because of, among other evaluation aspects, the high annual maintenance cost of these unused water rights, lack of technical and economic feasibility and insufficient local communities support. As a result, the Group wrote off a total amount of ThCh$ 32,834,160 of property, plant and equipment and ThCh$ 2,549,926 of intangible assets, which represent 100% of the related costs previously capitalized. (ix) As of December 31, 2016, Enel Generación Chile S.A. recognized an impairment loss of ThCh$ 6,577,946 associated with certain Non-Conventional Renewable Energy (“NCRE”) initiatives, such as wind, mini-hydro, biomass and solar projects. These initiatives deal with collection of natural resources data (wind speed, solar radiation, etc.) as well as engineering studies enabling the Company to perform and support technical and economical assessments in order to visualize their perspectives and decide on future steps. The results of the studies have not been entirely satisfactory, mainly due to the current conditions in the Chilean electricity market, as future viability of the NCRE projects is uncertain. As a result, Enel Generación Chile recognized an impairment loss for 100% of the capitalized investments to date in NCRE projects. On the other hand, Enel Generación Chile decided to write off 100% of capitalized investment in the Tames and Totoralillo thermal projects that until now were held in its portfolio. These projects were being developed within the framework of the public land concessions offered by the National Heritage Ministry in 2013. The amount of the write-off was ThCh$ 1,096,137 and arose as a result of the current conditions in the Chilean electricity market, lack of future viability of this type of technology (steam-coal) and high development costs, which make these projects unfeasible. In addition, Enel Generación Chile recognized a provision of ThCh$2,244,900 for the fines to be paid upon withdrawing from the concessions related to these projects. During fiscal year 2017, the Ministry of National Assets and Enel Generación Chile resolved to extinguish the concessions by mutual agreement, and fines were not applied. (x) On June 4, 2019, our subsidiaries Enel Generación Chile and GasAtacama Chile signed an agreement whereby both companies, in line with their own sustainability strategy and strategic plan, and the Ministry of Energy, regulated how to proceed with respect to the progressive closures of the Tarapacá, Bocamina I and Bocamina II coal generating units (hereinafter, Tarapacá, Bocamina I and Bocamina II). The agreement is subject to the condition precedent that the regulation of power transfers between generating companies enters into full effect, which establishes, among other items, the essential conditions that ensure a non-discriminatory treatment between the different generators and define the Strategic Reserve State. Therefore, Enel Generación and GasAtacama Chile would be formally and irrevocably bound to the final closures of Bocamina I and Tarapacá, respectively, from the National Electric System, establishing deadlines of May 31, 2020 for the Tarapacá plant, and on December 31, 2023 for the Bocamina I plant. The Group’s intention is to accelerate the closures of Tarapacá and Bocamina I in full coordination with the Authority. In this context, on June 17, 2019, GasatAcama Chile requested of the CNE that the final retirement, disconnection and cessation of operations of Tarapacá be carried out in advance, as of December 31, 2019. On July 26, 2019, by issuance of Exempt Resolution No. 450 and in accordance with the provisions of article 72 ° -18 of the General Law of Electric Services, the CNE authorized the final retirement, disconnection and cessation of operation of the Tarapacá coal generating unit as of December 31, 2019. As a result of the foregoing, the Group has recorded an impairment loss of ThCh$197,188,542 and ThCh $82,831,721 to adjust the carrying amount of the capitalized investment in Tarapacá and Bocamina 1, respectively, to their recoverable value. In relation to Bocamina II, Enel Generación Chile set its goal for early retirement as no later than December 31, 2040. All of the above is subject to the authorization established in the General Law of Electric Services. The financial effects will depend on factors that influence the behavior of the electricity market, such as, among others, the price of fuels, hydrological conditions; the growth of electricity demand and international inflation rates, which to date are not possible to determine. Notwithstanding the foregoing, the useful lives of Bocamina II assets have been adjusted, so that in no case will the depreciation be recorded for a date beyond December 31, 2040. This measure implied recognizing a larger amount of depreciation at December 31 2019 of ThCh$ 4,083,855. (xi) On a result of the public disorders that have affected Chile since October 18, 2019, fixed assets were written off for a total of ThCh$1,629,983 as of December 31, 2019. There are insurance policies, which are in the process of investigation with respect to the settlement of the incident. On the other hand, equipment retirement were made which corresponds to ThCh$1,880,608. Together, the amounts total ThCh$3,510,591; (see Note 32).

Investment Property

Investment Property	12 Months Ended
	Dec. 31, 2019
INVESTMENT PROPERTY.
Investment Property	19. INVESTMENT PROPERTY. The detail and changes in investment property during the years ended December 31, 2019 and 2018, are as follows: Investment Gross Accumulated Investment Investment Properties ThCh$ ThCh$ ThCh$ Balance at January 1, 2018 9,189,377 (832,605) 8,356,772 Depreciation expense — (19,591) (19,591) Other increases (decreases) — (779,825) (779,825) Balance at December 31, 2018 9,189,377 (1,632,021) 7,557,356 Depreciation expense — (19,812) (19,812) Impairment (*) — (742,389) (742,389) Balance at December 31, 2019 9,189,377 (2,394,222) 6,795,155 (*) See Note 31. There were no investment properties disposed of during the periods ended December 31, 2019 and 2018. Fair value measurement and hierarchy As of December 31, 2019, the fair value of the Group’s investment properties was ThCh$7,880,432 ( ThCh$8,228,673 as of December 31, 2018) which was determined using independent appraisals. The fair value measurement for these investment properties was categorized as Level 3 within the fair value hierarchy. The following is the fair value hierarchy of investment properties: Fair value measured at the end of the reporting period using: Level 1 Level 2 Level 3 ThCh$ ThCh$ ThCh$ Investment properties — — 7,880,432 See Note 3.h. For the years ended December 31, 2019, 2018 and 2017, the detail of income and expenses from investment properties is as follows: For the years ended December 31, 2019 2018 2017 Income and expense from investment properties ThCh$ ThCh$ ThCh$ Rental income from investment properties 202,896 204,166 192,719 Direct operating expense from investment properties generating rental income (44,136) (56,327) (78,367) Total 158,760 147,839 114,352 The Group has no repair, maintenance, acquisition, construction or development agreements that represent future obligations for the Group as of December 31, 2019. The Group has insurance policies to cover operational risks of its investment properties, as well as to cover legal claims against the Group that could potentially arise from exercising its business activity. Management considers that the insurance policy coverage is sufficient against the risks involved.

Income Tax and Deferred Taxes

Income Tax and Deferred Taxes	12 Months Ended
	Dec. 31, 2019
INCOME TAX AND DEFERRED TAXES
Income Taxes	20. INCOME TAX AND DEFERRED TAXES. a) Income taxes The following table presents the components of the income tax expense / (benefit) for the years ended December 31, 2019, 2018 and 2017: For the years ended December 31, 2019 2018 2017 Current Income Tax and Adjustments to Current Income Tax for Previous Periods ThCh$ ThCh$ ThCh$ Current income tax (54,904,679) (47,354,780) (162,820,181) Adjustments to current tax from the previous period (2,251,167) (6,304,285) (1,127,646) Other current tax benefit / (expense) (37,369,930) (61,507,252) 15,934,106 Current tax expense, net (94,525,776) (115,166,317) (148,013,721) Benefit / (expense) from deferred taxes for origination and reversal of temporary differences 33,297,872 (43,134,500) 4,671,420 Adjustments to deferred taxes from the previous period — 4,818,298 — Total deferred tax benefit / (expense) 33,297,872 (38,316,202) 4,671,420 Income tax expense (61,227,904) (153,482,519) (143,342,301) The following table reconciles income taxes resulting from applying the local current tax rate to “Net income before taxes” and the actual income tax expense recorded in the accompanying Consolidated Statement of Comprehensive Income for the years ended December 31, 2019, 2018 and 2017: 12-31-2019 12-31-2018 12-31-2017 Reconciliation of Tax Expense Rate ThCh$ Rate ThCh$ Rate ThCh$ ACCOUNTING INCOME BEFORE TAX 377,321,122 566,330,276 666,760,212 Total tax income (expense) using statutory rate (101,876,703) (152,909,175) (170,023,854) Tax effect of rates applied in other countries 232,897 — — 328,968 Tax effect of non-taxable operations 42,638,986 1,746,052 37,774,743 Tax effect of non-tax-deductible expenses (10,399,776) (12,786,965) (20,737,858) Tax effect of adjustments to taxes in previous periods (2,251,167) (6,304,285) (1,127,646) Adjustments for prior periods deferred taxes — — 4,818,298 — — Price level restatement for tax purposes (investments and equity) 10,427,859 11,953,556 10,443,346 Total adjustments to tax expense using statutory rate 40,648,799 (0.10)% (573,344) 26,681,553 Income tax benefit (expense) (61,227,904) (153,482,519) (143,342,301) b) Deferred taxes The origination and changes in deferred tax assets and liabilities as of December 31, 2019 and 2018, are as follows: December 31, 2019 December 31, 2018 Assets Liabilities Assets Liabilities Deferred Tax Assets (Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ Accumulated depreciation 10,652,313 (404,453,928) 9,636,857 (359,613,258) Post-employment benefit obligations 7,772,646 (34,413) 6,131,110 (421,462) Revaluations of financial instruments 456,888 — — — Tax loss 81,154,636 — 36,921,157 — Provisions 87,275,541 — 55,080,385 — Dismantling Provision 44,485,711 — 23,627,264 — Provision for Civil Contingencies 3,502,161 — 4,108,710 — Provision Contingencies Workers 492,522 — 430,900 — Provision for doubtful trade accounts 14,555,712 — 13,253,612 — Provision of Human Resources accounts 7,859,341 — 7,432,939 — Other Provisions 16,380,094 — 6,226,960 — Other Deferred Taxes 20,980,774 (31,240,859) 14,277,897 (20,921,510) Capitalization of financial expenses — (11,412,737) — (11,202,063) Argentina Hyperinflationary Effect — (657,871) — (425,687) Other Deferred Taxes 20,980,774 (19,170,251) 14,277,897 (9,293,760) Deferred Tax Assets/Liabilities before compensation 208,292,798 (435,729,200) 122,047,406 (380,956,230) Compensation of Assets (Liabilities) for deferred taxes (186,444,559) 186,444,559 (102,876,176) 102,876,176 Deferred Tax Assets (Liabilities) after compensation 21,848,239 (249,284,641) 19,171,230 (278,080,054) Changes 2019 Opening balance Increase Increase (decrease) comprehensive Foreign Other increases Closing balance Deferred Tax Assets (Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Accumulated depreciation (349,976,401) (5,668,543) — (1,561,204) (36,595,467) (393,801,615) Post-employment benefit obligations 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 financial expenses (11,202,063) (407,318) — 196,643 (11,412,738) Argentina Hyperinflation Effect (425,687) (207,916) — (24,268) (657,871) Other Deferred Taxes 4,984,137 988,848 992 — (4,163,453) 1,810,524 Deferred Tax Assets (Liabilities) (258,908,824) 33,297,873 2,811,360 1,330,258 (5,967,069) (227,436,402) Changes 2018 Opening balance Effects first IFRS 9 and Net balance restated as of January 1, 2018 Increase (decrease) in Increase (decrease) income Acquisitions Business Combinations Foreign currency Other increases (decreases) Closing balance Deferred Tax Assets (Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Accumulated depreciation (263,685,283) — (263,685,283) (3,851,978) — (74,336,810) (10,342,994) 2,240,664 (349,976,401) Post-employment benefit obligations 5,971,995 — 5,971,995 (250,223) (10,228) — — (1,896) 5,709,648 Tax loss carryforwards 9,536,102 — 9,536,102 (3,278,563) 32,058,724 2,831,404 (4,226,510) 36,921,157 Provisions 39,890,472 1,261,836 41,152,308 4,032,271 — 5,183,782 973,961 3,738,063 55,080,385 Dismantling Provision 17,411,395 — 17,411,395 4,442,928 — 1,707,519 59,520 5,902 23,627,264 Provision for Civil Contingencies 3,762,772 — 3,762,772 306,893 — — 39,045 — 4,108,710 Provision Contingencies Workers 5,989 — 5,989 333,704 — 8,016 83,191 — 430,900 Provision for doubtful trade accounts 11,976,401 1,261,836 13,238,237 13,646 — 3,434 989 (2,694) 13,253,612 Provision of Human Resources accounts 6,497,206 — 6,497,206 178,162 — 70,795 686,776 — 7,432,939 Other Provisions 236,709 236,709 (1,243,062) — 3,394,018 104,440 3,734,855 6,226,960 Other Deferred Taxes 38,900,825 (213,442) 38,687,383 (34,967,709) 111 — — (10,363,398) (6,643,613) Capitalization of financial expenses (4,780,923) — (4,780,923) (6,421,139) — — — (1) (11,202,063) Recoverable taxes 10,491,314 — 10,491,314 — — — — (10,491,314) — Investments accounted for using the equity method - Hidroaysen 30,938,736 — 30,938,736 (30,938,736) — — — — — Argentina Hyperinflation Effect — (213,442) (213,442) (212,245) — — — — (425,687) Other Deferred Taxes 2,251,698 — 2,251,698 2,604,411 111 — — 127,917 4,984,137 Deferred Tax Assets (Liabilities) (169,385,889) 1,048,394 (168,337,495) (38,316,202) (10,117) (37,094,304) (6,537,629) (8,613,077) (258,908,824) Recovery of deferred tax assets will depend on whether sufficient tax profits will be obtained in the future. The Group believes that the future profit projections for its subsidiaries will allow these assets to be recovered. As of December 31, 2019, the Group has not recognized deferred tax assets related to tax losses in the amount of ThCh$4,625,940 (ThCh$3,930,370 as of December 31, 2018) (see Note 3.p). The Group has not recognized deferred tax liabilities for taxable temporary differences associated with investments in subsidiaries and joint ventures, as it is able to control the timing of the reversal of the temporary differences and considers that it is probable that such temporary differences will not reverse in the foreseeable future. As of December 31, 2019 and 2018, the aggregate of taxable temporary differences associated with investments in subsidiaries and joint ventures for which deferred tax liabilities have not been recognized totaled ThCh$1,323,714,721 and ThCh$896,532,229, respectively. Additionally, the Group has not recognized deferred tax assets for deductible temporary differences which as of December 31, 2019 and 2018, totaled ThCh$691,241,687 and ThCh$744,768,294, respectively, as it is not probable that sufficient future taxable profits exist to recover such temporary differences. The Group entities are potentially subject to income tax audits by the Chilean tax regulator and are limited to three tax years after which tax audits over those years can no longer be performed. Tax audits by nature are often complex and can require several years to complete. The tax years potentially subject to examination are 2016 through 2018. Given the range of possible interpretations of tax standards, the results of any future inspections carried out by Chilean tax authority for the years subject to audit can give rise to tax liabilities that cannot currently be quantified objectively. Nevertheless, management estimates that the liabilities, if any, that may arise from such tax audits, would not significantly impact the Group’s future results. The effects of deferred tax on the components of other comprehensive income for the years ended December 31, 2019 and 2018, are as follows: For the years ended December 31, 2019 2018 2017 Effects of Deferred Tax on the Components of Amount Before Income Tax Amount After Amount Before Income Tax Amount After AmountBefore Income Tax Amount After Other Comprehensive Income ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Available-for-sale financial assets (3,673) 992 (2,681) (411) 111 (300) 1,840 (497) 1,343 Cash flow hedge (139,174,121) 36,883,401 (102,290,720) (221,906,855) 60,650,786 (161,256,069) 97,558,961 (25,701,599) 71,857,362 Share of other comprehensive income from associates and joint ventures accounted for using the equity method — — — — — — (1,490) — (1,490) Foreign currency translation 73,114,966 — 73,114,966 107,492,316 — 107,492,316 (3,686,549) — (3,686,549) Actuarial gains(losses) on defined-benefit pension plans (7,777,204) 2,099,845 (5,677,359) 37,881 (10,228) 27,653 1,716,875 (463,556) 1,253,319 Income tax related to components of other comprehensive income (73,840,032) 38,984,238 (34,855,794) (114,377,069) 60,640,669 (53,736,400) 95,589,637 (26,165,652) 69,423,985 The following table presents deferred taxes between the balance sheet and income taxes in other comprehensive income as of December 31, 2019 and 2018. For the years ended December 31, 2019 2018 2017 Deferred taxes of components of other comprehensive income ThCh$ ThCh$ ThCh$ Total increases (decreases) for deferred taxes of other comprehensive income from continuing operations 2,811,360 (10,117) (464,053) Income tax of changes in cash flow hedge transactions 36,172,878 60,650,786 (25,701,599) Total income tax relating to components of other comprehensive income 38,984,238 60,640,669 (26,165,652) In Chile, Law No. 20,780 was published in the Official Gazette on September 29, 2014. It changes the income tax system and other taxes, by replacing the current tax system in 2017 with two alternative tax systems: the attributed income system and partially integrated system. This law gradually increases the rate of income tax on corporate income. Thus, it increased to 21% in 2014, to 22.5% in 2015 and to 24% in 2016. From 2017 taxpayers choosing the attributed income system are subject to a rate of 25%, while companies choosing the partially integrated system are subject to a rate of 25.5% in 2017 and 27% in 2018. The law also states that corporations will automatically be subject to the partially integrated system unless a future Extraordinary Shareholders’ Meeting agrees to select the attributed income system. On February 8, 2016, the Law No. 20,899 was published which, simplifying the income tax system. Its main modifications imposed the partially integrated system as mandatory for corporations, cancelling the previously available attributed income system option.

Other Financial Liabilities

Other Financial Liabilities	12 Months Ended
	Dec. 31, 2019
OTHER FINANCIAL LIABILITIES
Other Financial Liabilities	21. OTHER FINANCIAL LIABILITIES. The balances of other financial liabilities as of December 31, 2019 and 2018, are as follows: As of December 31, 2019 2018 Current Non-current Current Non-current Other financial liabilities ThCh$ ThCh$ ThCh$ ThCh$ Interest –bearing borrowings 164,404,334 1,714,837,545 329,262,093 1,703,044,158 Hedging derivatives (*) 48,225,766 25,208,326 81,195,765 2,629,715 Non-hedging derivatives (**) 2,026,476 124,048 207,957 159,630 Total 214,656,576 1,740,169,919 410,665,815 1,705,833,503 (*) See Note 23.2.a (**) See Note 23.2.b 21.1 Interest-bearing borrowings The detail of current and non-current interest-bearing borrowings as of December 31, 2019 and 2018, is as follows: As of December 31, Current Non-current Current Non-current Classes of Interest-bearing borrowings ThCh$ ThCh$ ThCh$ ThCh$ Bank loans 113,247,263 135,297,019 70,790,775 229,020,029 Unsecured obligations 5 — 212,736,914 — Unsecured Obligations with the public 45,315,051 1,531,974,852 43,568,129 1,461,713,954 Leases obligations 5,842,015 47,565,674 2,166,275 12,310,175 Total 164,404,334 1,714,837,545 329,262,093 1,703,044,158 Bank loans by currency and contractual maturity as of December 31, 2019 and 2018, are as follows: Summary of bank loans by currency and maturity Current Non-current Maturity Maturity Country Currency Effective Interest Nominal Secured / One to three Three to twelve Total Current One to two Two to three Three to four Four to five years Over five years Total Non-Current Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 3.31% 3.31% Unsecured 134,532 113,112,731 113,247,263 112,747,516 22,549,503 - - - 135,297,019 Chile Ch$ 6.00% 6.00% Unsecured 5 - 5 - - - - - - Total 134,537 113,112,731 113,247,268 112,747,516 22,549,503 - - - 135,297,019 Current Non-current Maturity Maturity Country Currency Effective Nominal Secured / Unsecured One to three Three to twelve Total Current One to two years Two to three Three to four Four to five Over five years Total Non-Current Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 3.51% 3.51% Unsecured 1,350,861 69,439,914 70,790,775 — 104,100,014 124,920,015 — — 229,020,029 Chile Ch$ 4.71% 4.30% Unsecured 6 212,736,908 212,736,914 — — — — Total 1,350,867 282,176,822 283,527,689 — 104,100,014 124,920,015 — — 229,020,029 Fair value measurement and hierarchy The fair value of current and non-current bank borrowings as of December 31, 2019 and 2018 totaled ThCh$247,030,075 and ThCh509,822,541, respectively. The fair value measurement of borrowings has been categorized as Level 2 (see Note 3.h). Identification of bank borrowings by company December 31, 2019 Current Non-current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Amortization Less than More Total One to Two to Three to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 1 — 1 — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 4 — 4 — — — — 76.536.353-5 Enel Chile S.A. Chile 97.036.000-k Banco Santander - Chile Chile Ch$ 3.85% 3.17% At maturity — — 0 — — — — 76.536.353-5 Enel Chile S.A. Chile 97.004.000-5 Banco de Chile Chile Ch$ 3.85% 3.17% At maturity — — 0 — — — — 76.536.353-5 Enel Chile S.A. Chile 97.018.000-1 Scotiabank Chile Chile Ch$ 3.85% 3.17% At maturity — — 0 — — — — 96.920.110-0 Enel Green Power Chile Ltda. Chile 97.018.000-1 Scotiabank Chile Chile US$ 4.14% 4.14% At maturity — — 0 — — — — 96.920.110-0 Enel Green Power Chile Ltda. Chile 97.018.000-1 Scotiabank Chile Chile US$ 4.17% 4.17% At maturity 134,532 112,747,516 112,882,048 — — — — 96.920.110-0 Enel Green Power Chile Ltda. Chile Foreign Inter-American Development Bank (BID) U.S. US$ 1.50% 1.50% At maturity 43,220 43,220 — 22,549,503 — 22,549,503 96.524.140-K Empresa Eléctrica Panguipulli S.A. Chile 97.018.000-1 Scotiabank Chile Chile US$ 4.25% 4.25% At maturity 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 December 31, 2018 Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Amortization Less than More Total One to Two to Three to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.006.000-6 Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 2 — 2 — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 4 — 4 — — — — 76.536.353-5 Enel Chile S.A Chile 97.036.000-K Banco Santander Chile Ch$ 3.85% 3.17% At maturity — 65,829,996 65,829,996 — — — — 76.536.353-5 Enel Chile S.A Chile 97.004.000-5 Banco de Chile Chile Ch$ 3.85% 3.17% At maturity — 73,453,456 73,453,456 — — — — 76.536.353-5 Enel Chile S.A Chile 97.018.001-1 Scotiabank Chile Chile Ch$ 3.85% 3.17% At maturity — 73,453,456 73,453,456 — — — — 96.920.110-0 Enel Green Power Chile Ltda Chile 97.080.000-K BBVA Chile US$ 4.14% 4.14% At maturity 814,628 69,400,009 70,214,637 — — — — 96.920.110-0 Enel Green Power Chile Ltda Chile 97.080.000-K BBVA Chile US$ 4.17% 4.17% At maturity 158,913 — 158,913 — 104,100,014 — 104,100,014 96.920.110-0 Enel Green Power Chile Ltda Chile 59.054.440-K INTER-AMERICAN INVESTIMENT CORPORATION U.S. US$ 1.50% 1.50% At maturity — 39,905 39,905 — — 20,820,002 20,820,002 95.524.140-K Empresa Electrica Panguipulli S.A Chile 97.080.000-K BBVA Chile US$ 4.25% 4.25% At maturity 377,320 — 377,320 — — 104,100,013 104,100,013 Total 1,350,867 282,176,822 283,527,689 — 104,100,014 124,920,015 229,020,029 21.2 Unsecured liabilities The detail of Unsecured Liabilities by currency and maturity as of December 31, 2019 and 2018, is as follows: Summary of public unsecured liabilities by currency and maturity Current Non-Current Maturity Maturity Effective Interest Nominal Annual Secured/ One to three Three to Twelve 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 Unsecured ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.59% 6.49% Unsecured 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% Unsecured — 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 Current Non-Current Maturity Maturity Effective Interest Nominal Annual Secured/ One to three Three to Twelve 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 Unsecured ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.59% 6.49% Unsecured 7,144,997 4,281,038 11,426,035 — — — — 1,164,595,519 1,164,595,519 Chile U.F. 6.00% 5.48% Unsecured — 32,142,094 32,142,094 30,793,493 30,793,493 30,793,493 30,793,493 173,944,463 297,118,435 Total 7,144,997 36,423,132 43,568,129 30,793,493 30,793,493 30,793,493 30,793,493 1,338,539,982 1,461,713,954 Summary of public unsecured liabilities by currency and maturity December 31, 2019 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Secured 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 Foreign BNY Mellon - Primera Emisión S-1 U.S. US$ 7.96% 7.88% 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 U.S. US$ 7.40% 7.33% 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 U.S. US$ 8.26% 8.13% 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 U.S. US$ 4.32% 4.25% 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% 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% 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 U.S. US$ 5.03% 4.88% 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 December 31, 2018 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Secured 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 Foreign BNY Mellon - Primera Emisión S-1 U.S. US$ 7.96% 7.88% No 4,693,498 — 4,693,498 — — — — 142,300,747 142,300,747 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-2 U.S. US$ 7.40% 7.33% No 1,500,880 — 1,500,880 — — — — 48,131,124 48,131,124 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-3 U.S. US$ 8.26% 8.13% No 950,619 — 950,619 — — — — 22,694,249 22,694,249 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Unica 24296 U.S. US$ 4.32% 4.25% No — 2,493,452 2,493,452 — — — — 274,469,150 274,469,150 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% No — 6,513,162 6,513,162 5,733,684 5,733,684 5,733,684 5,733,684 25,386,928 48,321,664 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% No — 25,628,932 25,628,932 25,059,809 25,059,809 25,059,809 25,059,809 148,557,535 248,796,771 76.536.353-5 Enel Chile S.A. Chile Foreign BNY Mellon - Unica U.S. US$ 5.03% 4.88% No — 1,787,586 1,787,586 — — — — 677,000,249 677,000,249 Total Unsecured Bonds 7,144,997 36,423,132 43,568,129 30,793,493 30,793,493 30,793,493 30,793,493 1,338,539,982 1,461,713,954 21.3 Secured liabilities As of December 31, 2019 and 2018, there were no secured liabilities. Fair value measurement and hierarchy The fair value of current and non-current unsecured liabilities as of December 31, 2019 and 2018 totaled ThCh$1,941,481,412 and ThCh$1,685,679,241, respectively. The fair value measurement of these liabilities has been categorized as Level 2 (See Note 3.h). It is important to note that these financial assets are measured at amortized cost (See Note 3.g.4). 21.4 December 31, 2019 Current Non-Current ThCh$ Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Nominal 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% 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% 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% 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% 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% 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% 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% 6,607 — 6,607 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.643.660-3 Inmobiliaria El Roble S.A. Chile UF 1.41% 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% 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% 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% 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% 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% 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% 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% 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% 10,501 — 10,501 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.253.641-2 Bcycle Latam S.P.A Chile Ch$ 6.24% — 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% 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% — 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% 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% 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% 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% 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% 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% 988 3,231 4,219 2,736 — — — — 2,736 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 76,055 — 76,055 43,584 44,691 45,827 46,991 1,156,664 1,337,757 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 117,630 117,630 42,842 43,930 45,047 46,191 1,066,692 1,244,702 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 29,696 — 29,696 16,622 17,044 17,477 17,921 439,871 508,935 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 29,189 29,189 19,513 20,009 20,517 21,038 548,843 629,920 96.524.140-k Empresa Eléctrica Panguipulli S.A. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile EUR 5.02% — 260,072 260,072 167,261 175,655 184,471 193,729 2,532,578 3,253,694 96.524.140-k Empresa Eléctrica Panguipulli S.A. Chile 76.259.106-5 Inmobiliaria Terra Australis Tres S.A. Chile UF 6.39% — 46,597 46,597 54,543 55,929 57,350 58,807 1,012,677 1,239,306 96.524.140-k Empresa Eléctrica Panguipulli S.A. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 6.39% — 98,189 98,189 70,885 72,686 74,533 76,427 1,881,835 2,176,366 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 36,519 36,519 27,274 27,967 28,677 29,406 723,912 837,236 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 26,329 26,329 19,661 20,161 20,673 21,198 521,858 603,551 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 30,727 30,727 22,949 23,532 24,130 24,743 609,121 704,475 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 27,615 27,615 20,619 21,143 21,680 22,231 547,270 632,943 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 3,738 3,738 2,793 2,864 2,937 3,011 74,129 85,734 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 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 del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 31,087 — 31,087 18,256 18,720 19,195 19,683 517,037 592,891 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 29,105 — 29,105 17,619 18,066 18,525 18,996 467,606 540,812 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 628 — 628 383 393 403 413 10,169 11,761 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 1,331 1,331 683 700 718 736 20,591 23,428 76.412.562-2 Enel Green Power del Sur SPA. Chile 76.400.311-K Fundo Los Buenos Aires Spa Chile UF 2.54% — 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 del Sur SPA. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4.94% 7,914 — 7,914 2,949 3,095 3,248 3,408 99,995 112,695 76.412.562-2 Enel Green Power del Sur SPA. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4.94% 15,877 — 15,877 6,496 6,817 7,154 7,507 185,500 213,474 76.412.562-2 Enel Green Power del Sur SPA. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4.94% 3,961 — 3,961 1,474 1,547 1,624 1,704 49,994 56,343 76.412.562-2 Enel Green Power del Sur SPA. Chile 4.595.479-K Adriana Castro Parra Chile UF 4.94% 31,828 — 31,828 12,991 13,633 14,307 15,015 370,630 426,576 76.412.562-2 Enel Green Power del Sur SPA. Chile 7.256.021-3 Alicia Freire Hermosilla Chile UF 4.31% 93,160 — 93,160 88,809 — — — — 88,809 76.412.562-2 Enel Green Power del Sur SPA. Chile 77.378.630-5 Agricola Santa Amalia Chile UF 4.94% 31,828 — 31,828 12,991 13,633 14,307 15,015 370,631 426,577 76.412.562-2 Enel Green Power del Sur SPA. Chile 77.894.990-3 Orafti Chile S.A. Chile UF 4.94% 15,918 — 15,918 6,190 6,496 6,817 7,154 192,635 219,292 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 4.87% — 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 del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 4.94% 41,389 — 41,389 13,058 13,704 14,381 15,092 520,042 576,277 76.412.562-2 Enel Green Power del Sur SPA. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4.94% 5,605 — 5,605 2,141 2,247 2,359 2,475 66,716 75,938 76.412.562-2 Enel Green Power del Sur SPA. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4.94% 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 del Sur SPA. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4.94% 7,935 — 7,935 3,095 3,248 3,408 3,577 96,415 109,743 76.179.024-2 Parque Eólico Tal Tal SpA Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.36% 32,269 — 32,269 22,884 23,424 23,978 24,545 311,762 406,593 76.179.024-2 Parque Eólico Tal Tal SpA Chile 79.938.160-5 Soc. Serv. Com.. Multiservice F.L. Chile UF 2.94% — 35,334 35,334 35,034 36,064 37,124 38,215 981,212 1,127,649 76.052.206-6 Parque Eólico Valle de los Vientos SpA Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.23% 48,681 — 48,681 37,594 38,433 39,291 40,168 258,481 413,967 76.126.507-5 Parque Eólico Talinay Oriente S.A. Chile 76.248.317-3 Agricola Alto Talinay Chile EUR 4.61% — 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 UF 2.54% — 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 78.822.300-5 Inversiones Cardinal S.A Chile UF 1.20% 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% 9,714 19,465 29,179 — — — — — — Total Leasing 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 December 31, 2018 Current Non-Current ThCh$ Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Nominal 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% 528,847 1,637,428 2,166,275 2,307,082 2,457,043 2,616,750 4,929,300 — 12,310,175 Total Leasing 528,847 1,637,428 2,166,275 2,307,082 2,457,043 2,616,750 4,929,300 — 12,310,175 21.5 Hedged debt The U.S. dollar denominated debt of the Group as of December 31, 2019 and 2018, that is designated as cash flow hedge to hedge the portion of revenue from its consolidated entities that is directly linked to variations in the U.S. dollar, as referenced in Note 3.g.5, was ThCh$1,585,140,233 and ThCh$1,192,973,584 , respectively. The following table details changes in “Reserve for cash flow hedges” as of December 31, 2019 and 2018, due to exchange differences of this debt: For the years ended December 31, 2019 2018 2017 ThCh$ ThCh$ ThCh$ Balance in hedging reserves (hedging income) at the beginning of the period, net (127,508,852) (27,168,007) (52,747,645) Foreign currency exchange differences recognized in equity, net (77,347,380) (101,790,308) 17,321,594 Foreign currency exchange differences recognized in profit and loss, net 15,042,823 12,478,369 8,258,044 Others (Tender Offer 33.57% April 2, 2018 on Enel Generacion Chile) — (11,028,906) — Balance in hedging reserves (hedging income) at the end of the period, net (189,813,409) (127,508,852) (27,168,007) 21.6 Other information As of December 31, 2019 and 2018, the Group has undrawn line of credits available for use amounting to ThCh$146,268,500 and ThCh$416,862,000, respectively. 21.7 Future undiscounted debt flow The following tables are the a) Bank loans guaranteed and unsecured Non-Current Current Non-Current Total Current Maturity Total Non-Current Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate One to Three Months Three to twelve months as of 12-31-2019 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2019 One to Three Months Three to twelve months as of 12-31-2018 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 2,542,588 120,375,278 122,917,866 118,121,339 22,859,559 - - - 140,980,898 1,985,915 75,074,314 77,060,229 110,909,917 106,335,361 21,112,380 - - 238,357,658 Chile Ch$ 5 - 5 - - - - - - 1,798,705 215,920,510 217,719,215 - - - - - - Totals - - - - - b) Guaranteed and unsecured obligations 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 12-31-2019 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 One to Three Months Three to twelve months as of 12-31-2018 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 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 16,173,722 48,521,166 64,694,888 64,694,887 64,694,887 64,694,887 64,694,887 1,612,310,243 1,871,089,791 Chile U.F. 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 6,603,562 49,871,556 56,475,118 54,036,540 51,597,963 49,159,386 46,720,808 224,787,689 426,302,386 Totals c) Lease obligations Non-Current Current Non-Current Total Current Maturity Total Non-Current Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate 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 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$ 859,011 2,802,479 3,661,490 3,570,048 3,554,711 5,731,772 258,317 2,063,704 15,178,552 760,090 2,278,842 3,038,932 3,034,977 3,030,765 3,026,279 5,044,764 - 14,136,785 Chile Euros 80,971 240,372 321,343 499,678 485,713 471,749 457,785 2,453,454 4,368,379 - - - - - - - - - Chile UF 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$ 1,180 23,113 24,293 17,847 16,967 16,087 15,207 - 66,108 - - - - - - - - - Totals -

Risk Management Policy

Risk Management Policy	12 Months Ended
	Dec. 31, 2019
RISK MANAGEMENT POLICY
Risk Management Policy	22. RISK MANAGEMENT POLICY. The Group’s companies are exposed to certain risks that are managed by systems that identify, measure, limit concentration of, and monitor these risks. The main principles in the Group’s risk management policy include the following: · Compliance with good corporate governance standards. · Strict compliance with all the Group’s internal policies. · Each business and corporate area determines: i. The markets in which it can operate based on its knowledge and ability to ensure effective risk management; ii. Criteria regarding counterparties and iii. Authorized operators. · Business and corporate areas establish their risk tolerance in a manner consistent with the defined strategy for each market in which they operate. · All of the operations of the businesses and corporate areas are conducted within the limits approved for each case. · Businesses, corporate areas, lines of business and companies design the risk management controls necessary to ensure that transactions in the markets are conducted in accordance with the Enel Chile’s policies, standards, and procedures. 22.1 Interest rate risk The 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 financial debt of the Group according to the fixed and / or protected interest rate on the gross debt, after derivatives contracted, is as follows: Gross position: For the years ended December 31, 2019 2018 % % Fixed interest rate 98% 71% (i) The change in the estimation between fixed and variable, is explained by the renegotiation between EGP del Sur and Enel Finance International NV. For more details see Note 12.d.ii. Depending on the Group’s estimates and on the objectives of the debt structure, hedging transactions are performed by entering into derivatives contracts that mitigate interest rate risk. 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 that in which its cash flows are indexed. · Payments to be made for the acquisition of project-related materials and for corporate insurance policies in a currency other than that in which its cash flows are indexed. · Revenues in the Group companies directly linked to changes in currencies other than that of its cash flows. In order to mitigate foreign currency risk, the Group’s foreign currency risk management policy is based on cash flows and includes maintaining a balance between U.S. dollar flows and the levels of assets and liabilities denominated in this currency. 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. In addition, the policy seeks to refinance debt in the functional currency of each of the Group’s companies. 22.3 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. In order 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 in Chile, with drought and highly volatile commodity prices on international markets, the Group is constantly analyzing whether it is in its best interest to use hedging to lessen the impacts that these price swings have on its results. As of December 31, 2019, there were current transactions for 1,412 kTon of API2 to be settled in 2020, 1,059 kBbl of Brent to be settled in 2020, and 4.79 TBtu from HH to be settled in 2020. As of December 31, 2018 there were current transactions for 432 kTon of API2 to be settled in 2019, 994 kBbl of Brent to be settled in 2019, 225 kTon of BCI7 to be settled in 2019 and 0.2 TBtu of HH to be settled in 2019 (figures considered net hedged position). Depending on operating conditions, which are constantly being updated, these hedges may be modified or may cover other commodities. 22.4 Liquidity risk 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 21 and 23. As of December 31, 2019, the Group had a liquidity position of ThCh$235,684,500 in cash and equivalents and ThCh$146,268,500 in unconditionally available long-term credit lines. As of December 31, 2018 the Group’s liquidity is as follows: cash and cash equivalents for ThCh$245,171,924 and unconditionally available long-term credit lines for ThCh$416,862,000. 22.5 Credit risk The Group closely monitors its credit risk, as described below: 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 both the electricity generation and distribution lines of business. In the electricity generation and distribution lines of business, regulations allow the suspension of energy service to customers with outstanding payments, and the contracts have termination clauses for payment default. The Group monitors its credit risk on an ongoing basis and measures its maximum exposure to payment default risk, which, as stated above, is very limited. In the case of our electricity distributionbusiness, the suspension of energy service to customers, is a right available to the business in case of breaches by our costumers, which is applied according to the current regulation, which facilitates the process of evaluation and control of credit risk, which by the way is limited. 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. In selecting banks to make investments, the Group considers those banks with investment grade ratings granted by main international rating agencies (Moody’s, S&P and Fitch). Investments may be backed with treasury bonds from the countries in which the Group operates and/or with commercial papers issued by the highest rated banks; the latter are preferred, as they offer higher returns (always in line with current investment policies). 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 Group, thereby reducing volatility in the income statement. The portfolio of positions included for the purposes of the calculations of this value at risk include: · Financial debt. · Hedging derivatives for debt. The VaR determined represents the potential variation in value of the portfolio of positions described above in one 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. dollarLIBOR 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 (both spot and term) for the risk variables based on the scenarios with observable inputs for a same period (quarter) during five years. The one-quarter 95%-confidence VaR number is calculated as the 5% percentile of the potential variations in the fair value of the portfolio in one quarter. Taking into account the assumptions described above, the one-quarter VaR was ThCh$237,095,044. This amount represents the potential increase of the debt and derivatives’ portfolio, thus these VaRs are inherently related, among other factors, to the portfolio’s value at each quarter’s end.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018, is as follows: December 31, 2019 Financial assets at fair value through profit and loss 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 accounts receivable 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 accounts receivable 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 December 31, 2018 Financial assets at fair value through profit and loss Financial assets measured at amortized cost Financial assets at fair value with changes in other comprehensive income Financial ThCh$ ThCh$ ThCh$ ThCh$ Equity instruments 90,839 — 269,031 — Trade accounts receivable and other accounts receivable — 529,467,040 — — Derivative instruments 1,491,497 — 1,423,613 39,022,012 Other financial assets — 880,268 — — Total Current 1,582,336 530,347,308 1,692,644 39,022,012 Equity instruments — — 2,352,894 — Trade accounts receivable and other accounts receivable — 60,527,843 — — Derivative instruments 36,086 — — 4,191,543 Other financial assets — 689,146 — — Total Non-current 36,086 61,216,989 2,352,894 4,191,543 Total 1,618,422 591,564,297 4,045,538 43,213,555 The book value 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, 2019 and 2018, is as follows: December 31, 2019 Financial liabilities Loans and payables Financial Liabilities at fair value with changes in other result Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 164,404,334 — — Trade accounts payable and other accounts payable — 750,103,757 — — Derivative instruments 2,026,476 — 8,924,831 48,225,766 Total Current 2,026,476 914,508,091 8,924,831 48,225,766 Interest-bearing loans — 1,714,837,545 — — Trade accounts payable and other accounts payable — 840,623,569 — — Derivative instruments 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 December 31, 2018 Financial liabilities Loans and payables Financial Liabilities at fair value with changes in other result Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 329,262,093 — — Trade accounts payable and other accounts payable — 702,770,048 — — Derivative instruments 756,005 — 7,161,949 81,195,765 Total Current 756,005 1,032,032,141 — 81,195,765 Interest-bearing loans — 1,703,044,158 — — Trade accounts payable and other accounts payable — 449,777,982 — — Derivative instruments 159,630 — — 2,629,715 Total Non-current 159,630 2,152,822,140 — 2,629,715 Total 915,635 3,184,854,281 — 83,825,480 23.2 Derivative instruments 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 Group classifies its derivatives 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 hedge instruments are recorded at fair value with changes in net income (assets held for trading). a) Assets and liabilities for hedge derivative instruments As of December 31, 2019 and 2018, financial derivative transactions qualifying as hedge instruments resulted in recognition of the following assets and liabilities in the consolidated statement of financial position: December 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 December 31, 2018 Assets Liabilities Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: 852,119 4,191,543 Cash flow hedge 852,119 4,191,543 Exchange rate hedge: 38,169,893 — 81,195,765 2,629,715 Cash flow hedge 38,169,893 — 81,195,765 2,629,715 Total 39,022,012 4,191,543 81,195,765 2,629,715 General information on hedge derivative instruments Hedge derivative instruments and their corresponding hedged instruments are shown in the following table: Fair value of Fair value of Detail of Description Description hedged item hedged item Type hedging of hedging of hedge 12-31-2019 12-31-2018 of instrument instrument item ThCh$ ThCh$ risk hedged SWAP Interest rate Others (699,158) — Cash flow SWAP Exchange rate Unsecured obligations (bonds) (9,530,240) (18,892,400) Cash flow SWAP Interest rate Loans with Related Companies (6,991,184) — Cash flow SWAP Interest rate Bank loans — 5,043,662 Cash flow SWAP Interest rate Bank loans 277,703 — Cash flow FORWARD Exchange rate Operational Income (51,297,500) (26,763,187) Cash flow (*) For the years ended December 31, 2019, 2018 and 2017 the Group did not recognize gains or losses for ineffective cash flow hedges. The Group has not entered into any fair value hedges for any of the periods reported. b) As of December 31, 2019 and 2018, financial derivative transactions recorded at fair value through profit or loss, resulted in the recognition of the following assets and liabilities in the statement of financial position: December 31, 2019 December 31, 2018 Current Current Non-Current Non-Current Current Current Non-Current Non-Current ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Non-hedging derivative instrument — 2,026,476 — 124,048 41,023 207,957 36,086 159,630 Total — 2,026,476 — 124,048 41,023 207,957 36,086 159,630 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 tables present 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, 2019 and 2018: December 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 December 31, 2018 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: 5,043,662 69,477,000 104,215,500 104,215,500 — — 277,908,000 Cash flow hedge 5,043,662 69,477,000 104,215,500 104,215,500 — — 277,908,000 Exchange rate hedge: (45,655,587) 1,227,557,071 76,355,223 — — — 1,303,912,294 Cash flow hedge (45,655,587) 1,227,557,071 76,355,223 — — — 1,303,912,294 Derivatives not designated for hedge accounting (290,478) 34,525,045 29,457,793 1,913,220 — — 65,896,058 Total (40,902,403) 1,331,559,116 210,028,516 106,128,720 — — 1,647,716,352 The hedging and non-hedging derivatives contractual maturities 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 hierarchy Financial instruments recognized at fair value in the consolidated statement of financial position are classified, based on the hierarchy described in Note 3.h. The following table presents financial assets and liabilities measured at fair value as of December 31, 2019 and 2018: 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 — Financial derivatives not designated for hedge accounting — — — — Commodity derivatives not designated as cash flow hedges 1,573,704 — 1,573,704 — Commodity derivatives designated as cash flow hedges 1,323,556 — 1,323,556 Available-for-sale financial assets, non-current 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 — Commodity derivatives not designated for hedge accounting — — — — Commodity derivatives designated as cash flow hedges 8,924,831 — 8,924,831 — Total 84,509,447 — 84,509,447 — Fair Value Measured at End of Reporting Period Using: 12-31-2018 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 43,213,555 — 43,213,555 — Financial derivatives not designated for hedge accounting 77,109 — 77,109 — Commodity derivatives not designated as cash flow hedges 1,450,474 — 1,450,474 — Commodity derivatives designated as cash flow hedges 1,423,613 — 1,423,613 Available-for-sale financial assets, non-current 359,870 — 359,870 — Total 46,524,621 — 46,524,621 — Financial Liabilities: Financial derivatives designated as cash flow hedges 83,825,480 — 83,825,480 — Financial derivatives not designated for hedge accounting 367,587 — 367,587 — Commodity derivatives not designated for hedge accounting 548,048 — 548,048 — Commodity derivatives designated as cash flow hedges 7,161,949 — 7,161,949 — Total 91,903,064 — 91,903,064 —

Trade and Other Current Payable

Trade and Other Current Payables	12 Months Ended
	Dec. 31, 2019
TRADE AND OTHER CURRENT PAYABLES.
Trade and Other Current Payables	24. TRADE AND OTHER CURRENT AND NON-CURRENT PAYABLES. The detail of Trade and Other Current Payables as of December 31, 2019 and 2018, is as follows: Current Non-current 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Trade and Other Payables ThCh$ ThCh$ ThCh$ ThCh$ Energy suppliers (1) 178,153,813 155,123,059 53,941,373 — Fuel and gas suppliers 55,179,023 39,787,839 — — Payables for goods and services 183,848,556 155,054,466 487 6,766 Payables for assets acquisition 100,307,602 116,157,897 2,281,051 2,106,099 Subtotal Trade Payables 517,488,994 466,123,261 56,222,911 2,112,865 Other Payables Dividends payable to third parties 41,582,444 52,059,048 — — Warranty deposits 360,863 365,857 — — Fines and complaints — 165,102 — — Taxes payables other than income tax 44,506 1,742,603 — — Accounts payable to staff 33,090,217 30,686,679 — — Other payables 6,696,184 3,143,774 27,174 471,315 Subtotal Other Payables 81,774,214 88,163,063 27,174 471,315 Total 599,263,208 554,286,324 56,250,085 2,584,180 (1) Corresponding to lags in payments for purchases of electric energy resulting from the methodology for calculating the “Stabilized Price to Regulated Customer” according to Law No 21,185 (see Note 11). See Note 22.4 for the description of the liquidity risk management policy. The detail of trade payables, both non-past due and past due as of December 31, 2019 and 2018, are presented in Appendix 3.

Provisions

Provisions	12 Months Ended
	Dec. 31, 2019
PROVISIONS
Provisions	25. PROVISIONS. a) The breakdown of provisions as of December 31, 2019 and 2018, is as follows: Current Non-current 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Provisions ThCh$ ThCh$ ThCh$ ThCh$ Provision for legal proceedings 2,320,885 3,884,018 11,210,305 13,468,858 Decommissioning or restoration (1) — — 160,649,977 92,402,517 Other provisions 1,745,080 1,704,768 — — Total 4,065,965 5,588,786 171,860,282 105,871,375 (1) See Note 3.a The provisions for decommissioning originate from the fact that, considering the new environmental institutions in Chile, the scope of the rights and obligations associated with environmental licenses have been clarified in recent times. In light of the foregoing, the provisions have been adjusted to reflect the best estimate at the closing date of the financial statements. The expected amount and timing of any cash disbursements related to the foregoing provisions is uncertain and depends on the resolution of specific issues related to each of them. For example, in the specific case of litigation, this depends on the final resolution of the corresponding legal claim. Management considers that the provisions recognized in the financial statements adequately cover the corresponding risks. Changes in provisions as of December 31, 2019 and 2018, are as follows: Legal Decommissioning or Environment Total Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance at 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 at December 31, 2019 13,531,190 160,649,977 1,745,080 175,926,247 Legal Decommissioning or Environment Total Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance at January 1, 2018 17,433,976 64,486,647 2,138,385 84,059,008 Increase (decrease) in existing provisions (1) 1,842,257 23,395,295 (253,939) 24,983,613 Provisions used (1,150,386) — (501,234) (1,651,620) Reversal of unused provision (743,927) — — (743,927) Increase from adjustment to time value of money (2) — 3,176,001 — 3,176,001 Foreign currency translation (29,044) 1,344,574 321,556 1,637,086 Total changes in provisions (81,100) 27,915,870 (433,617) 27,401,153 Balance at December 31, 2018 17,352,876 92,402,517 1,704,768 111,460,161 (1) The variation experienced by the dismantling or restoration provisions during the year ended December 31, 2019, is mainly due to the increase in disbursements expected from the early closure of the Tarapacá and Bocamina I plants, which is part of the Group's agreement with the Ministry of Energy for the progressive closure of coal- fired power plants (see Note 18.e.x); and to a lesser extent due to an increase in the present value of the provisions, for a low discount rates applied. (2) Corresponding to financial update, see Note 34

Employee Benefit Obligations

Employee Benefit Obligations	12 Months Ended
	Dec. 31, 2019
EMPLOYEE BENEFIT OBLIGATIONS
Employee Benefit Obligations	26. EMPLOYEE BENEFIT OBLIGATIONS. 26.1 General information: The Group provides various post-employment benefits for all or some of their active or retired employees. These benefits are calculated and recorded in the financial statements according to the criteria described in Note 3.m.1, and include primarily the following: Defined benefit plans: · Complementary pension : The beneficiary is entitled to receive a monthly amount that supplements the pension obtained from the respective social security system. · Employee severance indemnities : The beneficiary receives a certain number of contractual salaries upon retirement. Such benefit is subject to a minimum vesting service requirement period, which depending on the Group, varies within a range from 5 to 15 years. · Electricity : The beneficiary receives a monthly bonus to cover a portion of their billed residential electricity consumption. · Health benefit : The beneficiary receives health coverage in addition to that to which they are entitled to under applicable social security system. 2.2 Details, changes and presentation in financial statements: a) The post-employment obligations associated with the defined benefits plan as of December 31, 2019 and 2018, are as follows: 12-31-2019 12-31-2018 ThCh$ ThCh$ Compensation for years of services 42,697,317 33,839,498 Supplementary Pension 17,853,600 16,993,409 Health Plans 3,090,670 2,979,630 Energy Supply Plans 2,521,903 2,790,127 Total post-employment obligations, net 66,163,490 56,602,664 a) The following amounts were recognized in the consolidated statement of comprehensive income for the years ended December 31, 2019 and 2018: For the years ended December 31, Expense Recognized in the Statement of 2019 2018 2017 Comprehensive Income ThCh$ ThCh$ ThCh$ Current service cost for defined benefits plan 1,928,868 1,920,262 2,091,205 Interest cost for defined benefits plan (1) 2,639,738 2,750,376 2,678,300 Past service cost 1,224,527 (39,060) — Expenses recognized in the Statement of Income 5,793,133 4,631,578 4,769,505 Gains (losses) from remeasurement of defined benefit plans 7,777,204 (37,881) (1,716,875) Total expense recognized in the Statement of Comprehensive Income 13,570,337 4,593,697 3,052,630 (1) See Note 34 c) The balance and changes in post-employment defined benefit obligations as of and for the years ended December 31, 2019 and 2018, are as follows: Actuarial Value of Post-employment Obligations ThCh$ Balance at January 1, 2018 57,081,924 Current service cost 1,920,262 Net Interest cost 2,750,376 Actuarial (gains) losses from changes in financial assumptions 789,809 Actuarial (gains) losses from changes in experience adjustments (827,690) Foreign currency translation 124,929 Benefits paid (5,469,357) Past service (39,060) Defined benefit plan obligations from business combinations 602,816 Transfers of employees (331,345) Balance at December 31, 2018 56,602,664 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 1,224,527 Benefits paid (4,068,988) Transfer of employees 49,691 Closing balance December 31, 2019 66,163,490 26.3 Other disclosures: · Actuarial assumptions: As of December 31, 2019 and 2018, the following assumptions were used in the actuarial calculation of defined benefits: 12-31-2019 12-31-2018 Discount rates used 3.40% 4.70% Expected rate of salary increases 3.80% 3.80% Turnover rate 5.24% 4.40% Mortality tables CB-H-2014 / RV-M-2014 CB-H-2014 / RV-M-2014 · Sensitivity As of December 31, 2019 and 2018, the sensitivity value of the actuarial liability for post-employment benefits to variations of 100 basis points in the discount rate assumes a decrease of ThCh$5,330,365 and ThCh$4,296,927, respectively, if the rate rises, and an increase of ThCh$5,829,095 and ThCh$4,773,734, respectively, if the rate falls. · Future disbursements According to the available estimate, the disbursements planned to meet the defined benefit plans for the 2020 period amount to ThCh$6,004,886. · Term of commitments The Group’s obligations have a weighted average length of 8 .72 years, and the flow for benefits for the next ten years and more is expected to be as follows: Years ThCh$ 1 6,004,886 2 5,304,228 3 5,264,382 4 4,304,571 5 5,181,657 6 to10 23,620,901

Equity

Equity	12 Months Ended
	Dec. 31, 2019
EQUITY [Abstract]
Equity	27. EQUITY. 27.1 Equity attributable to the shareholders of Enel Chile 27.1.1 Subscribed and paid capital and number of shares As of December 31, 2019 the capital of Enel Chile was ThCh$3,882,103,470 divided into 69,166,557,220 authorized shares. The capital of Enel Chile as of December 31, 2018 was ThCh$3,954,491,479 divided into 70,134,077,818 authorized shares. All the shares issued by Enel Chile are subscribed and paid in and can be traded on the Santiago Stock Exchange, the Chilean Electronic Stock Exchange and in the form of ADRs on the New York Stock Exchange (NYSE). 27.1.2 Treasury shares As of December 31, 2019, there were no treasury shares. As of December 31, 2018, treasury shares were ThCh$72,388,009 divided into 967,520,598 shares, and were acquired as part of the merger process with Enel Green Power Latin América Ltda. (“EGPL”). The treasury shares issued were automatically cancelled because they were not sold within one year from their acquisition, in accordance with the provisions of Article 27 of the Chilean Corporations Law (Law No. 18,046). 27.1.3 As a result of the corporate reorganization (as described in Note 6), the Company increased its share capital through the voluntary Tender Offer of Shares on the shares of the subsidiary Enel Generación Chile (Enel Generación) and the merger with EGPL, whereby the renewable assets of Enel S.p.A. in Chile were merged into Enel Chile: - During the Tender Offer period, which occurred 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 and 5,691,996 ADSs equivalent to 170,759,880 shares of Enel Generación. As a result, the Company increased its interest, becoming the holder of 2,753,096,167 shares issued by Enel Generación. In accordance with the terms and conditions set forth in the transaction, the shareholders of Enel Generación who agreed to sell their shares were allocated 40% of the established purchase price(Ch$590 per share) to subscribe for newly issued shares of Enel Chile, receiving for said 40% of the established purchase price, 2.87807 shares of Enel Chile for each share issued by Enel Generación sold in the Tender Offer. As a result, the shareholders of Enel Generación received Ch$1,624,326,738,530 in cash, divided into Ch$1,523,578,409,330 to domestic shareholders and Ch$100,748,329,200 to foreign shareholders. In turn, these shareholders subscribed for shares of Enel Chile for a total of Ch$649,730,695,412 equivalent to 7,923,600,070 shares. - The Chilean Corporations Law gives existing shareholders of a company a preemptive right to subscribe for shares issued in a capital increase, in proportion to their interest in the company. Any shareholder existing at the date of Enel Chile’s capital increase was able to exercise such right by paying exclusively in cash for those shares. As of March 16, 2018, the number of shares that exercised their - The corporate reorganization included the merger of EGPL with Enel Chile, a process that took place after the Tender Offer was declared successful, which took effect on April 2, 2018. As a result of this merger, Enel Chile’s share capital increased by Ch$1,071,727,278,668, divided into 13,069,844,862 shares, which were exchange for 827,205,371 shares of EGPL owned by Enel S.p.A., using an exchange ratio of 15.8 shares of Enel Chile for each share of EGPL. The changes in the number of shares of Enel Chile as a result of the corporate reorganization process described above are detailed below: Number of outstanding shares of Enel Chile prior to the reorganization Number of shares Ratio for Number of Public Tender Offer Shares of Enel Generation (1): Purchased shares - national market 2.88 Purchased shares - ADS 2.88 Total Public Tender Offer for Shares 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 Total Merger with EGPL 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 associated with the issuance of these new shares was ThCh$649,730,695. (2) The payment made by minority shareholders of Enel Chile was ThCh$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 share repurchase 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 12-20-2017 37,134,944 0.75642 2017 5 Final 04-25-2018 04-25-2018 155,025,509 2.24134 2017 6 Interim 11-29-2018 11-29-2018 31,288,371 0.45236 2018 7 Final 04-29-2019 04-29-2019 185,737,592 2.68537 2018 8 Final 11-26-2019 11-26-2019 30,933,437 0.44723 2019 27.3 Foreign currency translation reserves The following table sets forth foreign currency translation adjustments attributable to the shareholders of the Company for the years ended December 31, 2019, 2018 and 2017 For the years ended December 31, 2019 2018 2017 Reserves for Accumulated Currency Translation Differences ThCh$ ThCh$ ThCh$ GasAtacama Chile S.A. (3,292,629) 302,222 6,416,189 GNL Chile S.A. 1,022,047 900,483 560,194 Enel Green Power Chile Group 168,387,151 100,452,131 — TOTAL 166,116,569 101,654,836 6,976,383 27.4 Restrictions on consolidated subsidiaries transferring funds to the parent Certain of the Group’s subsidiaries must comply with financial ratio covenants which require them to have a minimum level of equity or other requirements that restrict the transferring of assets to the Company. The Group’s share of the restricted net assets as of December 31, 2019 and 2018 from its subsidiary Enel Generación Chile S.A. totaled ThCh$752,696,419 and ThCh$712,519,037, respectively. 27.5 Other reserves Other reserves within Equity attributable to Enel Chile for the years ended December 31, 2019 and 2018, are as follows: Balance at 2019 Changes Balance at Other reserves ThCh$ 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 of 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) Balance at 2018 Changes Balance at 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 of 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) Balance at 2017 Changes Balance at Other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 9,222,933 (2,246,550) 6,976,383 Cash flow hedges (76,218,470) 43,368,734 (32,849,736) Available-for-sale financial assets 9,955 1,329 11,284 Other comprehensive income from non-current assets held for sale (*) 1,632,724 (1,632,724) — Other miscellaneous reserves (c) (969,740,120) (1,728,359) (971,468,479) TOTAL (1,035,092,978) 37,762,430 (997,330,548) (*) See note 5. a) Exchange differences on translation: These reserves arise primarily from exchange differences relating to: (i) T ranslation of the financial statements of our subsidiaries from their functional currencies to our presentation currency (i.e. Chilean peso) (see Note 2.7.3). b) Cash flow hedging reserves: These reserves represent the cumulative effective portion of gains and losses recognized in cash flow hedges (see Notes 3.g.5 and 3.h). c) Other miscellaneous reserves: The main items and their effects are the following: For the years ended 2019 2018 2017 Other Miscellaneous Reserves ThCh$ ThCh$ ThCh$ Reserve for corporate reorganization (“Spin-Off”) (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) — Reserves “Reorganization of Renewable Assets” (v) (407,354,462) (407,354,462) — Hyperinflation Argentina (vi) 8,939,332 3,508,753 — Other Miscellaneous Reserves (vii) 7,001,861 7,592,112 7,308,596 TOTAL (2,280,627,568) (2,285,467,896) (971,468,479) (i) Reserve for corporate restructuring (Spin-Off) : Represents the effect generated by the corporate reorganization of Enersis S.A. (currently Enel Américas), effected in 2016, through which the company divided its business between Chile and other subsidiaries in South America. The new company was named Enersis Chile (currently Enel Chile), which was assigned the equity corresponding to the business related to Chile. (ii) Reserve for transition to IFRS : In accordance with Official Bulletin No. 456 from the CMF, included in this line item is the monetary correction corresponding to the accumulated paid-up capital from the date of our transition to IFRS, January 1, 2004, to December 31, 2008. (iii) Reserve for subsidiaries transactions : Corresponds to the effect of acquisitions of equity interests in subsidiaries entities under common control. (iv) Reserve Tender Offer for Enel Generación “Reorganization of Renewable Assets” : Represents the difference between the book value of the non-controlling interests acquired as part of the Tender Offer directed at the acquisition of all the shares issued by the subsidiary Enel Generación (see Note 6.i). (v) Reserve “Reorganization of Renewable Assets” : Corresponds to the reserve constituted by the merger of Enel Green Power Latin America with Enel Chile, materialized on April 2, 2018. It represents the recognition of the resulting difference between the capital increase in Enel Chile (correspond to market value participation over Enel Green Power Chile and subsidiaries) and the carrying amount of Enel Green Power Latin America that became part of the share capital in the distributable net assets to the owners of Enel Chile, as a result of the merger (see Note 6. iii). (vi) Hyperinflation Argentina: Corresponds to the effect calculated by the application of IAS 29 “Financial Information in Hyperinflationary Economies” on the subsidiary owned by the Enel Generación Group in Argentina (see Note 7). (vii) Other miscellaneous reserves from transactions made in prior years. 27.6 Non-controlling Interests The detail of non-controlling interests at December 31, 2019, 2018 and 2017, is as follows: Non-controlling Interests Equity Profit (Loss) 12-31-2019 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 Companies % ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Enel Distribución Chile S.A. 0.91% 7,691,319 6,965,769 6,223,363 1,079,941 1,112,709 961,490 Enel Generación Chile S.A. 6.45% 126,700,973 127,136,175 784,999,394 12,667,880 42,883,953 167,465,216 Empresa Eléctrica Pehuenche S.A. 7.35% 10,079,858 10,310,215 9,963,472 6,241,062 6,885,422 5,649,253 Sociedad AgrÍcola de Cameros Ltda. 42.50% 1,837,612 2,342,160 2,596,764 (504,550) (254,604) (39,706) Geotermica del Norte SA 15.41% 57,871,809 53,693,407 — (264,158) (187,989) — Empresa Nacional de Geotermia SA 49.00% 995,614 993,295 — (74,963) 41,780 — Parque Eolico Talinay Oriente SA 39.09% 57,586,860 51,702,606 — 868,127 662,374 — Others (178,379) (208,365) (205,346) (73,726) (5,825) (984) TOTAL 262,585,666 252,935,262 803,577,647 19,939,613 51,137,820 174,035,269

Revenue and Other Operating Inc

Revenue and Other Operating Income	12 Months Ended
	Dec. 31, 2019
REVENUE AND OTHER OPERATING INCOME
Revenue and Other Operating Income	28. REVENUE AND OTHER OPERATING INCOME. The detail of revenues from ordinary activities and other revenues for the years ended December 31, 2019, 2018 and 2017, is as follows: For the years ended December 31, 2019 2018 2017 Revenues ThCh$ ThCh$ ThCh$ Energy sales 2,405,903,242 2,202,078,088 2,262,090,558 Generation 1,090,021,527 1,034,975,160 1,082,749,256 Regulated customers (1) 589,368,952 643,494,066 726,166,640 Non-regulated customers 475,208,116 357,725,928 285,623,737 Spot market sales 25,444,459 33,755,166 70,958,879 Distribution 1,315,881,715 1,167,102,928 1,179,341,302 Residential (1) 552,124,205 455,840,910 435,769,231 Business 450,108,855 378,092,990 386,608,105 Industrial 181,595,960 209,252,478 225,736,231 Other consumers (2) 132,052,695 123,916,550 131,227,735 Other sales 124,113,792 123,345,383 107,362,797 Natural gas sales 97,564,262 103,717,558 91,652,707 Sales of products and services 26,549,530 19,627,825 15,710,090 Revenue from other services 94,559,289 84,936,988 114,648,227 Tolls and transmission 31,232,252 20,311,403 39,812,005 Metering equipment leases 2,131,427 5,024,944 4,945,609 Public lighting 11,262,418 12,181,969 13,449,852 Engineering and consulting services 10,385,950 10,027,472 3,414,472 Services for construction of junctions 16,497,051 14,711,796 15,514,433 Works in specific facilities and networks 7,455,200 8,425,251 13,932,537 Income from work in progress 2,727,203 1,947,722 2,883,530 Other services 12,867,788 12,306,431 20,695,789 Total Revenues 2,624,576,323 2,410,360,459 2,484,101,582 Other Operating Income ThCh$ ThCh$ ThCh$ Commodity derivatives 5,967,739 9,819,777 20,328,649 Income from early termination of electricity supply contracts (3) 121,117,605 — — Other income (4) 19,172,693 36,981,190 18,548,051 Total other income 146,258,037 46,800,967 38,876,700 (1) In 2019, this amount includes the effect of ThCh$142,367,584 corresponding to the differences between the prices of the electricity supply contracts and the regulated prices, which will be invoiced in the future following the scheme established in Law 21,185 (see note 10). Of this amount, ThCh$87,906,446 correspond to revenues that the Group must transfer to final customers through its subsidiary Enel Distribución Chile. (2) For the year ended December 31, 2019, it includes revenues from energy sales to municipalities of ThCh$45,768,456 (ThCh$36,878,861 and ThCh$36,165,698) for the years ended December 31, 2018 and 2017, respectively); government entities for ThCh$20,432,048 (ThCh$20,246,633 and ThCh$20,080,121 for the years ended December 31, 2018 and 2017, respectively); companies in the agricultural sector for ThCh$9,100,691 (ThCh$6,173,077 and ThCh$5,811,319 for the years ended December 31, 2018 and 2017, respectively); public services companies and telecommunications for ThCh$24,818,503 (ThCh$26,636,066 and ThCh$33,649,705 for the years ended December 31, 2018 and 2017 respectively), educational area ThCh$9,367,933 (ThCh$12,470,709 and ThCh $ 14,015,433 for the years ended December 31, 2018 and 2017, respectively), health services ThCh $ 18,975,909 (ThCh $ 19,629,502 and ThCh $18,290,164 for the years ended December 31, 2018 and 2017, respectively) and others for ThCh $ 3,589,156 (ThCh $ 1,881,702 and ThCh $ 3,215,295 for the years ended December 31, 2018 and 2017, respectively) (3) In February 2019, Anglo American Sur S.A. notified Enel Generación Chile of its decision to terminate in advance three electricity supply contracts, which both parties had signed in 2016. As stipulated in the exit and termination clauses of the respective contracts, the advance termination notice granted to Enel Generación Chile the right to receive an exit compensation, consisting of the payment of a cash amount by Anglo American Sur SA, determinable according to a predetermined calculation mechanism. It is important to note that, between the date of notification of the anticipated term and the effective termination date of the contracts, there were no performance obligations pending delivery by Enel Generación Chile, since the original contracts established the start of supply in January of the year 2021. Based on the foregoing, (following the accounting criteria described in note 3.q), revenue of ThCh$121,117,605 was recognized. Finally, on June 21, 2019, Enel Generación Chile made an unsuccessful transfer of the cash flows under this agreement. As a result of the foregoing, the derecognition of the account receivable from Anglo American Sur S.A. that existed at that date was offset against the exit compensation amount rather than there being an exchange of cash . (4) For the year ended December 31, 2019, it includes facilities leases of ThCh$3,835,198 (ThCh$0 for the years ended December 31, 2018 and 2017), recovery of revenues from customers with unregistered consumption of ThCh$2,746,764 (ThCh$2,847,740 and ThCh$1,968,203 for the years ended December 31, 2018 and 2017, respectively), late payment cancellation revenues of ThCh$485,684 (ThCh$675,202 and ThCh$1,299,470 for the years ended December 31, 2018 and 2017, respectively), Central Claims of Tarapacá for ThCh$4,380,934 (ThCh$21,987,899 and ThCh$0 for the years ended December 31, 2018 and 2017, respectively), and other revenue for ThCh$7,724,113 (ThCh$11,470,349 and ThCh$15,280,378 for the years ended 31 December 2018 and 2017, respectively).

Raw Materials and Consumables U

Raw Materials and Consumables Used	12 Months Ended
	Dec. 31, 2019
RAW MATERIALS AND CONSUMABLES USED.
Raw Materials and Consumables Used	29. RAW MATERIALS AND CONSUMABLES USED. The detail of raw materials and consumables used for the years ended December 31, 2019, 2018 and 2017, is as follows: For the years ended December 31, 2019 2018 2017 Raw materials and consumables used ThCh$ ThCh$ ThCh$ Energy purchases (835,284,742) (747,646,603) (902,434,871) Fuel consumption (230,944,415) (231,028,169) (280,739,362) Gas (134,127,365) (140,145,010) (170,456,730) Oil (3,326,061) (11,146,001) (21,227,747) Coal (93,490,989) (79,737,158) (89,054,885) Transportation costs (196,848,788) (166,875,801) (155,879,249) Gas sales costs (74,998,608) (80,477,713) (75,662,185) Other raw materials and consumables (83,128,698) (66,148,830) (100,071,254) Total (1,421,205,251) (1,292,177,116) (1,514,786,921)

Employee Benefits Expense

Employee Benefits Expense	12 Months Ended
	Dec. 31, 2019
EMPLOYEE BENEFITS EXPENSE.
Employee Benefits Expense	30. EMPLOYEE BENEFITS EXPENSE. Employee expenses for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Employee Benefits Expense ThCh$ ThCh$ ThCh$ Wages and salaries (109,101,737) (102,897,710) (100,653,880) Post-employment benefit obligations expense (3,153,395) (1,881,202) (2,091,205) Social security and other contributions (14,334,587) (13,405,944) (13,150,402) Other employee expenses (3,015,237) (4,945,478) (5,608,290) Total (129,604,956) (123,130,334) (121,503,777)

Depreciation, Amortization and

Depreciation, Amortization and Impairment Losses	12 Months Ended
	Dec. 31, 2019
DEPRECIATION, AMORTIZATION AND IMPAIRMENT LOSSES.
Depreciation, Amortization and Impairment Losses	31. PROPERTY, PLANT AND EQUIPMENT AND FINANCIAL ASSETS IN ACCORDANCE WITH IFRS 9 a) The detail of depreciation, amortization and impairment losses for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 ThCh$ ThCh$ ThCh$ Depreciation (224,724,380) (202,971,892) (145,873,065) Amortization (11,903,007) (12,215,408) (6,811,041) Total (236,627,387) (215,187,300) (152,684,106) b) The detail of the items related to impairment for the years ended December 31, 2019, 2018 and 2017 is as follows: For the years ended December 31, Generation Distribution Other Total 2019 2018 2017 2019 2018 2017 2019 2018 2017 2019 2018 2017 (*) Impairment Losses ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Property, Plant and Equipment (see Note 18) (280,020,263) — — — — — — — — (280,020,263) — — Investment Property (see Note 19) — — — — — — (742,389) (779,825) — (742,389) (779,825) — Total Reversal of impairment losses (impairment losses) recognized in profit or loss (280,020,263) — — — — — (742,389) (779,825) — (280,762,652) (779,825) — Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9 (see Note 11.d) (1,338,599) (106,264) 55,494 (8,153,419) (4,676,808) (7,993,311) (554,982) — — (10,047,000) (4,783,072) (7,937,817)

Other Expenses

Other Expenses	12 Months Ended
	Dec. 31, 2019
OTHER EXPENSES
Other Expenses	32. OTHER EXPENSES. Other miscellaneous operating expenses for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Other Expenses ThCh$ ThCh$ ThCh$ Professional, outsourced and other services (60,808,462) (69,692,677) (74,722,143) Administrative expenses (8,893,785) (5,991,676) (2,267,390) Repairs and maintenance (50,846,851) (41,829,409) (17,906,263) Indemnities and fines (1,243,376) (455,825) (776,011) Taxes and charges (6,802,176) (4,415,819) (5,105,235) Insurance premiums (19,200,681) (15,794,761) (13,277,718) Leases and rental costs (3,824,195) (3,775,007) (2,013,411) Marketing, public relations and advertising (3,274,693) (2,440,070) (2,501,027) Write-off Property, Plant and Equipment (*) (3,510,591) — (25,105,911) Travel expenses (3,991,349) (2,436,407) (3,426,179) Environmental expenses (9,886,690) (9,664,683) (7,769,230) Other supplies and services (11,860,291) (10,713,687) (6,953,556) Total (184,143,140) (167,210,021) (161,824,074) (*) See explanation in Notes 18 e) xi) and vii) for the years 2019 and 2017, respectively

Other Gains (Losses)

Other Gains (Losses)	12 Months Ended
	Dec. 31, 2019
OTHER GAINS (LOSSES)
Other Gains (Losses)	33. OTHER GAINS (LOSSES). Other gains (losses) for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Other Gains (Losses) ThCh$ ThCh$ ThCh$ Gain on sale of Electrogas (*) — — 105,311,912 Gain on sale of Property, Plant and Equipment 1,530,689 3,024,549 7,779,531 Gain on sale of investment properties 262,512 385,830 149,753 Total 1,793,201 3,410,379 113,241,196 (*)

Financial Results

Financial Results	12 Months Ended
	Dec. 31, 2019
FINANCIAL RESULTS.
Financial Results	34. FINANCIAL RESULTS. Financial income and costs for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Financial Income ThCh$ ThCh$ ThCh$ Income from deposits and other financial instruments 8,973,606 9,612,575 8,377,023 Interests charged to customers in energy accounts and billing 8,057,203 7,140,984 8,556,587 Financial income by Law N°21,185 (1) 5,225,739 Other financial income 5,142,727 3,180,909 4,729,078 Total Financial Income 27,399,275 19,934,468 21,662,688 For the years ended December 31, 2019 2018 2017 Financial Costs ThCh$ ThCh$ ThCh$ Financial Costs (164,897,900) (122,184,189) (53,510,882) Bank loans (14,487,700) (20,701,774) (12,585) Secured and unsecured obligations (81,818,564) (62,255,300) (42,708,253) Financial leasing (1,815,170) (739,069) (811,172) Valuation of financial derivatives 1,775,749 1,183,228 (1,067,820) Financial provisions (2) (4,356,650) (3,176,001) (2,347,087) Post-employment benefit obligations (3) (2,639,738) (2,750,376) (2,678,300) Debt formalization expenses and other associated expenses (4,710,012) (9,373,412) (836,174) Capitalized borrowing costs 9,321,354 6,435,646 4,078,463 Financial cost related companies (31,304,382) (23,228,947) (452,642) Financial cost by Law N°21,185 (1) (19,062,333) — — Other financial costs (15,800,454) (7,578,184) (6,675,312) (Loss) gain from indexed assets and liabilities, net (2,982,268) (818,146) 916,666 Foreign currency exchange differences (10,412,110) (7,807,197) 8,516,874 Total Financial Costs (178,292,278) (130,809,532) (44,077,342) Total Financial Results (150,893,003) (110,875,064) (22,414,654) (1) Corresponding to financial costs and profits from the calculating methodology for “Stabilized Price to Regulated Customer” according to Law No 21,185 (see Note 11). (2) See Note 25. (3) See Note 26. The effects on financial results from the application of indexed assets and liabilities and exchange differences originated from the following For the years ended December 31, 2019 2018 2017 Profit (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 1,410,408 1,197,498 155,158 Current tax assets and liabilities 2,557,465 3,424,644 1,654,538 Other financial liabilities (financial debt and derivative instruments) (1,637,291) (1,714,216) (891,230) Trade and other payables 16,939 15,145 (1,800) Other non-financial liabilities (1,688) — — Sub total 2,382,630 2,968,179 916,666 Hyperinflation Result (1) (5,364,898) (3,786,325) — Gains from indexed assets and liabilities, net (2,982,268) (818,146) 916,666 For the years ended December 31, 2019 2018 2017 Foreign Currency Exchange Differences ThCh$ ThCh$ ThCh$ Cash and cash equivalents (937,177) (415,962) 2,931,086 Other financial assets 2,052,540 5,733,173 10,895,862 Other non-financial assets (1,712,690) (534,401) — Trade and other receivables (2) 8,847,969 726,347 390,764 Current tax assets and liabilities (1,633,471) (1,903,963) (188,270) Other financial liabilities (financial debt and derivative instruments) (8,147,939) (5,726,246) (4,358,937) Trade and other payables (2) (9,381,721) (5,379,210) (1,152,505) Other non-financial liabilities 500,379 (306,935) (1,126) Total Foreign Currency Exchange Differences (10,412,110) (7,807,197) 8,516,874 (1) Corresponds to the financial effect from the application of IAS 29 Financial Reporting in Hyperinflationary Economies on the branch owned by Enel Generación Chile in Argentina (see Note 7) (2) Contains the exchange effect for dollarization of trade accounts receivable and payable for amounts of ThCh$ 5,261,358 and ThCh$ (1,426,334) respectively, originated by the application of the methodology for calculating the “Stabilized Price to Regulated Customer” according to Law No. 21,185 (see Note 11).

Information by Segment

Information by Segment	12 Months Ended
	Dec. 31, 2019
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 businesses), and its subsidiaries are engaged in either the Generation Business or the Distribution Business. The Group adopted a “bottom-up” approach to determine its reportable segments. The Generation and the Distribution reportable segments have been defined based on IFRS 8.9 and on the criteria described in IFRS 8.12. Generation Business: The Generation Reportable Segment is comprised of a group of electricity companies that own electricity generating plants, whose energy is transmitted and distributed to end customers. The generation business is conducted in Chile by our subsidiaries Enel Generación Chile S.A., Empresa Eléctrica Pehuenche S.A. and our group engaged in the development and exploitation of renewable energies with wind energy subsidiaries: Parque Eólico Tal Tal S.p.A., Parque Eólico Valle de los Vientos S.p.A. and Parque Talinay Oriente S.A., geothermal subsidiaries: Geotérmica del Norte S.A. and Empresa Nacional de Geotermia S.A., wind and solar energy subsidiaries Enel Green Power del Sur SpA, and the subsidiary Empresa Eléctrica Panguipulli S.A. engaged in hydroelectric, solar and wind generation. The remainder are engaged in diverse projects: Diego de Almagro Matriz SpA, Almeyda Solar SpA. Distribution Business: The Distribution Reportable Segment is comprised of a group of electricity companies 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: EBITDA, Gross Margin, Total Capex, Total Opex, Net income, Total Energy Generation, among others. The presentation of information under this business approach has been made taking into consideration that the KPIs are similar and comparable in all segments, 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, 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 energy to regulated customers; (d) The methods used to distribute their products or provide their services: generators generally sell the 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 differs in the Generation Business and Distribution Business The Company’s chief operating decision maker (CODM) in conjunction with the Chile country manager 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 preparation of the Group’s consolidated financial statements. 35.2 Generation, distribution and others Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ASSETS CURRENT ASSETS 941,262,837 997,843,912 289,393,932 296,453,471 (212,444,109) (297,349,611) 1,018,212,660 996,947,772 Cash and cash equivalents 26,391,853 155,591,949 2,331,365 4,969,412 206,961,282 84,610,563 235,684,500 245,171,924 Other current financial assets 489,658 39,507,485 64,220 62,226 756,717 733,462 1,310,595 40,303,173 Other current non-financial assets 8,908,239 14,074,044 8,868,077 5,648,807 16,858,247 2,683,237 34,634,563 22,406,088 Trade and other current receivables 230,670,997 254,374,451 260,840,410 218,310,327 19,943,923 5,485,289 511,455,330 478,170,067 Current accounts receivable from related companies 587,067,775 422,492,265 10,115,510 59,827,152 (529,001,152) (428,148,357) 68,182,133 54,171,060 Inventories 34,705,515 48,221,915 3,150,943 3,528,174 1,815,792 5,211,554 39,672,250 56,961,643 Current tax assets 53,028,800 63,581,803 4,023,407 4,107,373 70,221,082 32,074,641 127,273,289 99,763,817 Non-current assets classified as held for sale — — — — — — — — NON-CURRENT ASSETS 4,771,905,050 4,625,205,545 1,175,550,962 982,926,699 892,319,492 882,940,148 6,839,775,504 6,491,072,392 Other non-current financial assets 7,189,431 6,554,114 22,741 26,410 8,448 689,145 7,220,620 7,269,669 Other non-current non-financial assets 34,903,436 42,006,844 2,576,585 2,600,071 570,163 1,097 38,050,184 44,608,012 Trade and other non-current receivables 88,225,632 1,565,812 157,051,933 41,993,899 68,296,820 16,968,132 313,574,385 60,527,843 Non-Current accounts payable from related companies 80,926,788 — — — (46,519,646) — 34,407,142 — Investments accounted for using the equity method 7,928,588 12,873,531 — — — — 7,928,588 12,873,531 Intangible assets other than goodwill 76,077,944 68,776,401 51,360,795 41,963,796 4,839,854 4,632,196 132,278,593 115,372,393 Goodwill 33,135,272 32,500,603 2,240,478 2,240,478 881,977,224 880,303,644 917,352,974 915,044,725 Property, plant and equipment 4,422,575,593 4,442,872,809 961,392,557 893,246,804 (23,648,526) (27,471,980) 5,360,319,624 5,308,647,633 Investment property — — — — 6,795,155 7,557,356 6,795,155 7,557,356 Deferred tax assets 20,942,366 18,055,431 905,873 855,241 — 260,558 21,848,239 19,171,230 TOTAL ASSETS 5,713,167,887 5,623,049,457 1,464,944,894 1,279,380,170 679,875,383 585,590,537 7,857,988,164 7,488,020,164 Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ LIABILITIES AND EQUITY CURRENT LIABILITIES 844,513,549 909,428,562 317,248,207 450,182,594 (120,461,904) (142,147,004) 1,041,299,852 1,217,464,152 Other current financial liabilities 211,928,086 196,141,320 738,783 2 1,989,707 214,524,493 214,656,576 410,665,815 Trade and other current payables 300,957,548 317,337,886 200,472,938 156,939,551 97,832,722 80,008,887 599,263,208 554,286,324 Current accounts payable to related companies 296,861,070 337,986,306 87,507,312 258,410,862 (224,558,495) (438,460,843) 159,809,887 157,936,325 Other current provisions 3,619,734 5,195,377 — — 446,231 393,409 4,065,965 5,588,786 Current tax liabilities 17,717,789 12,563,801 34,718 5,114,119 243,326 — 17,995,833 17,677,920 Other current non-financial liabilities 13,429,322 40,203,872 28,494,456 29,718,060 3,584,605 1,387,050 45,508,383 71,308,982 NON-CURRENT LIABILITIES 1,899,077,568 1,846,575,202 301,769,861 63,065,351 868,557,231 686,751,678 3,069,404,660 2,596,392,231 Other non-current financial liabilities 998,974,951 1,028,833,254 2,993,326 — 738,201,642 677,000,249 1,740,169,919 1,705,833,503 Trade and other non-current payables 2,281,053 2,556,521 53,968,545 27,172 487 487 56,250,085 2,584,180 Non-current accounts payable to related companies 486,839,484 447,193,802 182,031,404 — 115,502,596 — 784,373,484 447,193,802 Other long-term provisions 160,006,401 91,898,262 11,853,881 13,973,113 — — 171,860,282 105,871,375 Deferred tax liabilities 231,156,234 260,950,163 19,818,625 21,335,014 (1,690,218) (4,205,123) 249,284,641 278,080,054 Non-current provisions for employee benefits 19,819,445 15,143,200 29,801,321 27,503,399 16,542,724 13,956,065 66,163,490 56,602,664 Other non-current non-financial liabilities — — 1,302,759 226,653 — — 1,302,759 226,653 EQUITY 2,969,576,770 2,867,045,693 845,926,826 766,132,225 (68,219,944) 40,985,863 3,747,283,652 3,674,163,781 Equity attributable to Enel Chile 2,969,576,770 2,867,045,693 845,926,826 766,132,225 (68,219,944) 40,985,863 3,484,697,986 3,421,228,519 Issued capital 1,185,731,351 1,137,185,366 230,137,980 230,137,980 2,466,234,139 2,587,168,133 3,882,103,470 3,954,491,479 Retained earnings 1,735,720,458 1,626,928,911 933,560,288 852,296,368 (661,177,095) (564,427,666) 2,008,103,651 1,914,797,613 Share Premium 85,511,492 85,511,492 354,220 354,220 (85,865,712) (85,865,712) — — Treasury shares — — — — — (72,388,009) — (72,388,009) Other reserves (37,386,531) 17,419,924 (318,125,662) (316,656,343) (1,787,411,276) (1,823,500,883) (2,405,509,135) (2,375,672,564) Non-controlling interests — — — — — — 262,585,666 252,935,262 Total Liabilities and Equity 5,713,167,887 5,623,049,457 1,464,944,894 1,279,380,170 679,875,383 585,590,537 7,857,988,164 7,488,020,164 Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENT OF COMPREHENSIVE INCOME REVENUES AND OTHER OPERATING INCOME 1,726,611,508 1,580,653,088 1,634,937,087 1,412,871,738 1,263,224,072 1,326,658,860 (368,648,886) (386,715,734) (438,617,665) 2,770,834,360 2,457,161,426 2,522,978,282 Revenues 1,581,230,963 1,540,352,133 1,599,032,140 1,408,588,042 1,254,943,604 1,322,422,609 (365,242,682) (384,935,278) (437,353,167) 2,624,576,323 2,410,360,459 2,484,101,582 Energy sales 1,472,565,933 1,425,942,129 1,457,671,722 1,318,386,716 1,170,129,333 1,180,426,814 (385,049,407) (393,993,374) (376,007,978) 2,405,903,242 2,202,078,088 2,262,090,558 Other sales 97,870,470 103,779,801 94,452,287 9,365,186 16,411,425 12,741,568 16,878,136 3,154,157 168,942 124,113,792 123,345,383 107,362,797 Other services rendered 10,794,560 10,630,203 46,908,131 80,836,140 68,402,846 129,254,227 2,928,589 5,903,939 (61,514,131) 94,559,289 84,936,988 114,648,227 Other operating income 145,380,545 40,300,955 35,904,947 4,283,696 8,280,468 4,236,251 (3,406,204) (1,780,456) (1,264,498) 146,258,037 46,800,967 38,876,700 RAW MATERIALS AND CONSUMABLES USED (678,187,609) (709,506,221) (903,978,006) (1,114,936,281) (972,499,918) (1,055,708,050) 371,918,639 389,829,023 444,899,135 (1,421,205,251) (1,292,177,116) (1,514,786,921) Energy purchases (160,044,206) (213,114,437) (346,954,692) (1,056,562,636) (926,385,346) (938,067,783) 381,322,099 391,853,181 382,587,604 (835,284,743) (747,646,602) (902,434,871) Fuel consumption (230,944,414) (231,028,169) (280,739,362) — — — — — — (230,944,414) (231,028,169) (280,739,362) Transportation expenses (169,062,680) (154,044,158) (152,869,838) (22,725,942) (9,816,883) (63,009,956) (5,060,166) (3,014,761) 60,000,545 (196,848,788) (166,875,802) (155,879,249) Other miscellaneous supplies and services (118,136,309) (111,319,457) (123,414,114) (35,647,703) (36,297,689) (54,630,311) (4,343,294) 990,603 2,310,986 (158,127,306) (146,626,543) (175,733,439) CONTRIBUTION MARGIN 1,048,423,899 871,146,867 730,959,081 297,935,457 290,724,154 270,950,810 3,269,753 3,113,289 6,281,470 1,349,629,109 1,164,984,310 1,008,191,361 Other work performed by the entity and capitalized 8,887,421 8,663,737 7,226,484 8,723,440 6,667,947 6,630,130 — 1,379,279 532,373 17,610,861 16,710,963 14,388,987 Employee benefits expense (62,871,525) (61,991,737) (54,222,470) (34,828,194) (32,598,818) (38,449,551) (31,905,237) (28,539,779) (28,831,756) (129,604,956) (123,130,334) (121,503,777) Other expenses (120,522,841) (104,190,567) (102,821,020) (70,678,241) (64,179,201) (61,942,592) 7,057,942 1,159,747 2,939,538 (184,143,140) (167,210,021) (161,824,074) GROSS OPERATING INCOME 873,916,954 713,628,300 581,142,075 201,152,462 200,614,082 177,188,797 (21,577,542) (22,887,464) (19,078,375) 1,053,491,874 891,354,918 739,252,497 Depreciation and amortization expense (196,623,025) (179,901,682) (117,337,553) (40,705,580) (36,677,957) (36,685,324) 701,218 1,392,339 1,338,771 (236,627,387) (215,187,300) (152,684,106) Impairment losses (reversal of impairment losses) recognized in profit or loss (280,020,263) — — — — — (742,389) (779,825) — (280,762,652) (779,825) — Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9. (1,338,599) (106,264) 55,494 (8,153,419) (4,676,808) (7,993,311) (554,982) — — (10,047,000) (4,783,072) (7,937,817) OPERATING INCOME 395,935,067 533,620,354 463,860,016 152,293,463 159,259,317 132,510,162 (22,173,695) (22,274,950) (17,739,604) 526,054,835 670,604,721 578,630,574 FINANCIAL RESULT (101,324,905) (86,621,659) (36,610,248) 5,232,127 6,088,801 6,411,837 (54,800,225) (30,342,206) 7,783,757 (150,893,003) (110,875,064) (22,414,654) Financial income 15,241,046 8,727,356 5,273,672 22,742,687 11,166,433 12,894,635 (10,584,458) 40,679 3,494,381 27,399,275 19,934,468 21,662,688 Cash and cash equivalents 3,556,554 5,673,621 3,077,708 1,456,253 1,633,373 1,975,564 3,960,799 2,305,581 3,323,751 8,973,606 9,612,575 8,377,023 Other financial income 11,684,492 3,053,735 2,195,964 21,286,434 9,533,060 10,919,071 (14,545,257) (2,264,902) 170,630 18,425,669 10,321,893 13,285,665 Financial costs (111,219,566) (82,878,715) (50,851,829) (19,061,123) (6,724,490) (7,094,366) (34,617,211) (32,580,984) 4,435,313 (164,897,900) (122,184,189) (53,510,882) Bank borrowings (11,813,855) (9,269,535) (261) (40,508) (5,374) (12,299) (2,633,337) (11,426,865) (25) (14,487,700) (20,701,774) (12,585) Secured and unsecured obligations (45,714,879) (43,965,839) (42,708,253) — — — (36,103,685) (18,289,461) — (81,818,564) (62,255,300) (42,708,253) Other (53,690,832) (29,643,341) (8,143,315) (19,020,615) (6,719,116) (7,082,067) 4,119,811 (2,864,658) 4,435,338 (68,591,636) (39,227,115) (10,790,044) Profit (loss) from indexed assets and liabilities (5,157,076) (2,480,291) 145,608 1,843,435 1,616,607 761,262 331,373 45,538 9,796 (2,982,268) (818,146) 916,666 Foreign currency exchange differences (189,309) (9,990,009) 8,822,301 (292,872) 30,251 (149,694) (9,929,929) 2,152,561 (155,733) (10,412,110) (7,807,197) 8,516,874 Share of profit of associates accounted for using the equity method 366,089 3,190,240 (2,696,904) — — — — — — 366,089 3,190,240 (2,696,904) Other gains (losses) 1,683,246 3,434,503 113,088,869 12 — 157,458 109,943 (24,124) (5,131) 1,793,201 3,410,379 113,241,196 Gain (loss) from other investments 152,557 409,954 105,462,769 12 — 4,026 109,943 (24,124) (5,131) 262,512 385,830 105,461,664 Gain (loss) from the sale of property, plant and equipment 1,530,689 3,024,549 7,626,100 — — 153,432 — — — 1,530,689 3,024,549 7,779,532 Income before tax 296,659,497 453,623,438 537,641,733 157,525,602 165,348,118 139,079,457 (76,863,977) (52,641,280) (9,960,978) 377,321,122 566,330,276 666,760,212 Income tax (40,347,869) (113,783,941) (112,099,519) (38,748,555) (42,967,123) (34,030,322) 17,868,520 3,268,545 2,787,540 (61,227,904) (153,482,519) (143,342,301) Net income from continuing operations 256,311,628 188,153,449 118,777,047 57,935,774 (58,995,457) 649,411 316,093,218 412,847,757 523,417,911 Net income from discontinued operations — — — — — — — — — NET INCOME 256,311,628 339,839,497 425,542,214 118,777,047 122,380,995 105,049,135 (58,995,457) (49,372,735) (7,173,438) 316,093,218 412,847,757 523,417,911 Net income attributable to: 256,311,628 339,839,497 425,542,214 118,777,047 122,380,995 105,049,135 (58,995,457) (49,372,735) (7,173,438) 316,093,218 412,847,757 523,417,911 Shareholders of Enel Chile — — — — — — — — — 296,153,605 361,709,937 349,382,642 Non-controlling interests — — — — — — — — — 19,939,613 51,137,820 174,035,269 Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENT OF CASH FLOWS Cash flows from (used in) operating activities 754,113,794 638,607,494 488,167,382 50,246,845 117,692,384 170,628,958 (60,648,920) (20,774,356) (23,182,620) 743,711,719 735,525,522 635,613,720 Cash flows from (used in) investing activities (426,038,012) (451,284,432) (91,867,647) (28,896,947) (123,070,452) (74,464,531) 143,403,148 (1,307,204,810) 19,866,401 (311,531,811) (1,881,559,694) (146,465,777) Cash flows from (used in) financing activities (453,927,358) (249,051,150) (301,835,211) (23,901,991) (32,268,227) (76,923,085) 37,393,661 1,247,896,253 61,162,775 (440,435,688) 966,576,876 (317,595,521) The holdings, eliminations and other column corresponds to transactions between companies in different lines of business, primarily purchases and sales of energy and services.

Third Party Guarantees, Other C

Third Party Guarantees, Other Contingent Assets and Liabilities, and Other Commitments	12 Months Ended
	Dec. 31, 2019
PROVISIONS
Third Party Guarantees, Other Contingent Assets and Liabilities, and Other Commitments	36. THIRD PARTY GUARANTEES, OTHER CONTINGENT ASSETS AND LIABILITIES, AND OTHER 36.1 Direct guarantees As of December 31, 2019 and 2018, the Group had future energy purchase commitments amounting to ThCh$7,647,064 and ThCh$8,404,005, respectively. 36.2 Indirect guarantees Debtor Outstanding balance as of Contract Maturity Creditor of Guarantee Company Relationship Type of Guarantee Currency 12-31-2019 12-31-2018 Bonds Series B (1) October 2028 Bondholders of Enel Américas’ Bonds Enel Américas Entities demerged from original debtor Enersis S.A. (codebtor Enel Chile S.A.) Codebtor UF 11,646,991 15,821,814 Credit Agreement September 2019 Scotiabank Chile Enel Green Power Chile Limitada Subsidiary Aval USD - 70,214,637 Credit Agreement December 2020 Scotiabank Chile Enel Green Power Chile Limitada Subsidiary Aval USD 112,882,048 104,258,927 Credit Agreement November 2022 Pto. GDN BID Enel Green Power Chile Limitada Subsidiary Aval USD 22,592,723 - Credit Agreement December 2021 Scotiabank Chile Empresa Eléctrica Panguipulli S.A. Subsidiary Aval USD 113,069,511 104,477,333 Credit Agreement December 2027 Enel Finance International N.V. Enel Green Power Chile Limitada Subsidiary Aval USD 484,341,824 447,431,880 (1) As a result of the Enersis’ Spin-Off and in accordance with the bond indenture, all entities arising from the demerger are liable for the debt, regardless that the payment obligation remains in Enel Américas S.A. 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. Enel Chile S.A. 1.1. Inversiones Tricahue S.A., a minority shareholder of Empresa Eléctrica Pehuenche S.A., requested in the 20th Civil Court of Santiago the appointment of an arbitrator, to hear and resolve the arbitration claim that Inversiones Tricahue S.A. seeks to bring against Empresa Eléctrica Pehuenche S.A., Enel Generación Chile S.A., Enel Chile S.A., and the directors of these three companies, for the alleged damages that the Pehuenche management allegedly inflicted on the minority shareholders, as a result of the Project Elqui reorganization plan and the development of Pehuenche’s electricity generation business. Once the request for the appointment of an arbitrator was presented, the three defendant companies and their directors submitted numerous objections, all of which were rejected by a ruling dated June 25, 2018. Subsequently, Mr. Nelson Contador was designated as the arbitrator and accepted the appointment. The companies and their directors appealed the appointment of the arbitrator, a hearing on the appeal was held and the appeal is pending a ruling. In parallel, the appointed arbitrator issued a ruling that summoned the parties to a hearing to set the rules of procedure and fees of the arbitrator, which will occur on the tenth day after notification of the ruling to all of the parties, which as of December 31, 2019 had not yet occurred. 2. Enel Generación Chile S.A. 2.1. By means of ORD No. 5,705 dated May 23, 2016, the Superintendency of Electricity and Fuels, filed charges against GasAtacama Chile S.A. (which merged into Enel Generación Chile S.A. on October 1, 2019) for providing allegedly erroneous information to CDEC-SING with respect to the Minimum Technical parameters (MT) and Average Operating Time parameters (TMO) during the period between January 1, 2011 and October 29, 2015, GasAtacama Chile S.A. presented its objections, which were rejected by the Superintendency’s Resolution No. 014606 dated August 4, 2016, which imposed a fine of 120,000 UTM (ThCh$5,964,760). In opposition to the resolution of the Superintendency that applied the fine, GasAtacama Chile S.A. submitted a request for reconsideration before the Superintendency, which was rejected by the Superintendency through Resolution No. 15,908, dated November 2, 2016, which confirmed the fine imposed. In opposition to the resolution, GasAtacama Chile S.A. filed a claim of illegality before the Court of Appeals of Santiago, which on April 9, 2019, issued a ruling that reduced the fine 120,000 UTM (10.000 UTA) imposed to fine 500 UTA (ThCh$297,738). Both the Superintendency and GasAtacama Chile S.A.filed appeals before the Supreme Court against this ruling, which on January 15, 2020 rejected both appeals, confirmed the fine of 500 UTA (ThCh $ 297,738) and also declared, that there had been no delivery of false information to the coordinator of the CDEC-SING by GasAtacama Chile S.A. during the relevant period. 3. Enel Distribución Chile S.A. 3.1 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. (now 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 and for the first plaintiff and ThCh$500,000 of 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, raising the background 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, which as of December 31, 2019 was pending resolution. 3.2 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 lost 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. As of December 31, 2019, notification to the plaintiff of abandonment of the proceeding was still pending. 3.3 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 earnings and ThCh$440,000 for punitive damages) due to the accident that occurred on June 22, 2015 and affected Mr. Víctor Hugo Coronado González 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 as of December 31, 2019 was pending resolution. 3.4 By means of Exempt Resolution No. 21,036 dated November 3, 2017, the Superintendency of Electricity and Fuels confirmed the fine of 35,611 UTM (ThCh$1,767,125) imposed on Enel Distribución Chile S.A. when it ruled 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 the aforementioned 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 presented a report, which on April 30, 2019 the Court of Appeals of Santiago considered. 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 took into account the ruling issued by the Constitutional Court and, on its merit, suspended 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. As of December 31, 2019, the proceeding was in a waiting stage for the allegations of those involved to be heard. 3.5 By means of Exempt Resolution No. 24,805 dated July 20, 2018, the Superintendency of Electricy and Fuels confirmed the fine imposed on Enel Distribución Chile S.A. for 80,000 UTM (ThCh$3,969,840) when it ruled against the request for reconsideration filed against Exempt Resolution No. 21,788 dated December 29, 2017 because it determined that Enel Distribución Chile 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 the aforementioned ruling, Enel Distribución Chile filed an appeal with the Court of Appeals of Santiago on August 7, 2018. On March 7, 2019, Enel Distribución Chile asked the Court to appoint a new civil electrical engineer expert, who was appointed in a resolution dated March 15, 2019, 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 recognize this was held and subsequently on December 20, 2019, certification of the end of the trial period was requested. As of December 31, 2019, the proceeding was in the decision stage. 3.6 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. for 10,000 UTM, (ThCh$496,230), when it ruled against the request for reconsideration filed against Exempt Resolution No. 21790 dated December 29, 2017 because it determined that Enel Distribución Chile did not provide adequate and timely customer service during the power outage that occurred on July 15, 2017 (the snowstorm event), which resulted from not having adequate customer service and information systems. In opposition to the aforementioned resolution, Enel Distribución Chile filed an appeal with the Court of Appeals of Santiago on August 7, 2018. On February 1, 2019 Enel Distribución Chile presented a list of witnesses, and such evidence was received on February 8, 2019, when Enel Distribución Chile also requested a hearing for the appointment of an expert. The request was accepted and the Court hearing was set for February 13, 2019. On February 28, 2019, Enel Distribución Chile again requested that the Court designate an expert, following the non-appearance of the counterparty at the hearing to designate an expert. On March 7, 2019, an expert was appointed, who accepted the appointment and proposed his fees on March 17, 2019. The Court acknowledged the acceptance of the appointment in a resolution dated March 25, 2019. On September 6, 2019, Enel Distribución Chile recorded 50% of the expert’s fees, which the Court made effective on September 24, 2019. On November 27, 2019, the expert received made the corresponding payment. As of December 31, 2019, the proceeding was in the decision stage. 3.7 By means of Exempt Resolution No. 24,249 dated June 18, 2018, the Superintendency of Electricity and Fuels imposed a fine of 3,000 UTM (ThCh$ 148,869), on Enel Distribución Chile S.A. for a power failure that occurred on October 20, 2016, when the 110 Kv Cerro Navia-Lo Prado line was disconnected due to a mono-phase failure between phase A and the ground, which was caused by bird droppings that caused a short circuit between conductors of phase A and a crosshead in portal No. 1 from 110 Kv to the S/E Lo Prado substation. In opposition to this resolution, Enel Distribución Chile S.A. filed a motion for reconsideration, which was rejected by Exempt Resolution No. 29,080 dated May 8, 2019. In opposition to the aforementioned resolution, Enel Distribución Chile S.A. filed an appeal with the Court of Appeals of Santiago on August 7, 2018. On June 13, 2019, a resolution was issued that considered the appeal and requested a report from the Superintendency of Electricity and Fuels, which was served on the Superintendency of Electricity and Fuels on June 17, 2019. The Superintendency of Electricity and Fuels issued the report on July 1, 2019, and the claim was ready to be heard by the court on July 5, 2019. On July 17, 2019, the hearing of the case took place and a judgment was issued on July 22, 2019 which rejected the appeal and confirmed the fine imposed by the Superintendency of Electricity and Fuels. Enel Distribución Chile S.A. filed an appeal against that judgment on August 2, 2019. On November 13, 2019, the Supreme Court upheld the judgment on appeal, maintaining the fine imposed by the Superintendency of Electricity and Fuels, which as of December 31, 2019 was pending payment. 3.8 By means of Exempt Resolution No. 24,870 dated July 25, 2018, the Superintendency of Electricity and Fuels imposed a fine of 6,000 UTM (ThCh$297,738) on Enel Distribución Chile S.A. for the accident that occurred on July 15, 2017 at the property Bombero Núñez Street, No. 40, in the Commune of Recoleta, where the company's underground distribution network would have been linked. In opposition to this resolution, Enel Distribución Chile filed a motion for reconsideration, which was rejected by Exempt Resolution No. 28320 dated March 21, 2019. On April 15, 2019, Enel Distribución Chile S.A. filed an appeal with the Court of Appeals of Santiago. On April 30, 2019, a resolution was issued that considered the appeal and requested a report from the Superintendency of Electricity and Fuels. On May 17, 2019, the Superintendency of Electricity and Fuels issued a report, and the claim was ready to be heard by the court on May 24, 2019. On June 10, 2019, Enel Distribución Chile S.A. requested that a trial period be opened, which was rejected by a resolution dated June 11, 2019, in respect of which Enel Distribución Chile filed a motion for reconsideration. On June 26, 2019, the court rejected the motion for reconsideration. A hearing of the case took place on September 27, 2019. On November 19, 2019, the Court of Appeals of Santiago issued a ruling rejecting the appeal filed, against which a further appeal was filed on November 30, 2019. On December 26, 2019, the allegations of the parties were heard before the Third Chamber of the Supreme Court and the parties are awaiting the Supreme Court’s ruling. 3.9 By means of Exempt Resolution No. 24,246 dated June 13, 2018, the Superintendency of Electricity and Fuels imposed a fine of 2,000 UTM (ThCh$ 99,246) on Enel Distribución Chile S.A. 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 filed a motion 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 considered 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 for a hearing and judgment with the Supreme Court. In relation to the litigation proceedings described above, the Group had established provisions for ThCh$7,488,391 as of December 31, 2019 (see Note 25). Although there are other lawsuits that also have associated provisions but are not described in this note because they individually represent immaterial amounts, the management of the Company considers that the provisions recorded in the consolidated financial statements are adequate to cover the risks of litigation and therefore do not expect additional liabilities other than those already specified. Given the characteristics of the risks covered by these provisions, it is not possible to determine a reasonable schedule of payment dates if there are any. 36.4 Financial restrictions. A number of the Company’s debt agreements, and those of some of its subsidiaries, include routine obligations to comply with certain financial ratios, affirmative and negative covenants, as well as event of default and mandatory prepayment provisions. 1. Cross Default Under Enel Chile’s bank loan agreement executed in June 2019 and maturing in June 2024, the cross payment default clause could be triggered by the default of another debt of the Company or of any of its Significant Subsidiaries (as defined contractually), provided that both the principal of the single debt giving rise to the cross default exceeds US$150 million or its equivalent in other currencies and that the amount in default also exceeds US$150 million, or its equivalent. Additional conditions must be met, including the expiration of grace periods (if any), and a formal notice of intent to accelate the debt repayment must have been give by creditos representing over 50% of the amount owed or committed in the contract. As of December 31, 2019, these credit lines are undrawn. For the SEC registered public bonds issued by the Company in the United States of America, commonly referred to as “Yankee bonds,” a cross default may be triggered by another debt of the Company on an individual level, or of any Significant Subsidiaries (as defined in the Indenture), for any amount overdue provided that the principal of the debt giving rise to the cross payment default exceeds US$150 million, or its equivalent in other currencies. Debt acceleration due to cross payment default does not occur automatically but has to be requested by the Trustee, or by holders of at least 25% of the specific series of Yankee bonds. Bankruptcy or insolvency of only Significant Subsidiaries may trigger a default of the Yankee bonds. As of December 31, 2019, the outstanding amount for the Yankee bonds maturing in 2028 was US$ 1 billion equivalent to ThCh$ 733,128,457. In the bonds of Enel Generación Chile registered with SEC, commonly called “Yankee bonds”, the cross default for non-payment could be triggered by another debt of the same company, or of any of its Chilean subsidiaries, for any amount overdue, provided that the principal of the debt that gives rise to the cross default exceeds US$30 million, or its equivalent in other currencies. Debt acceleration due to a cross-default does not occur automatically, but must be demanded by the holders of at least 25% of the bonds of that certain series of Yankee bonds. The Yankee bonds of Enel Generación Chile expire in 2024, 2027, 2037 and 2097, have similar contractual provisions as those detailed for Enel Chile. However, in the case of the Yankee bond maturing in 2024, the threshold that gives rise to cross default is US$50 million or its equivalent in other currencies. As of December 31, 2019, the amount owed for the Yankee bonds was US$ 717 million equivalent to ThCh$537,266,386. Enel Generación Chile bonds issued in Chile state that cross default can be triggered only by the default of the issuer when the amount in default exceeds US$50 million or its equivalent in other currencies. Debt acceleration requires the agreement of at least 50% of the bondholders of that certain series. As of December 31, 2019, the outstanding amount of the Chilean bonds was ThCh$306,895,060. The bank loan that Enel Green Power Chile executed in February 2017 for US$30 million states that the cross default is triggered by default of Enel Green Power Chile or any material subsidiary, as defined contractually. For the acceleration of this debt due to a cross default arising from another debt, the amount in default, either individually or in the aggregate, must exceed US$50 million, or its equivalent in other currency. As of December 31, 2019, the outstanding amount for this loan was ThCh$22,592,723. 2. Financial covenants Financial covenants are contractual commitments with respect to minimum or maximum financial ratios that a company is obliged to meet at certain periods of time (quarterly, annually, etc.), and in certain 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 based on debt and contract type. Enel Generación Chile bonds issued in Chile include the following financial covenants whose definitions and calculation formulas are established in the respective indentures: Series H · Consolidated Debt Ratio: The consolidated debt ratio, which is Financial Debt to Capitalization, must be less than or equal 0.64. Financial debt is the sum of Interest-bearing loans, current; Interest-bearing loans, non-current; Other financial liabilities, current; Other financial liabilities, non-current; and Other obligations guaranteed by the issuer or its subsidiaries; while Capitalization is the sum of Financial liabilities and Total Equity. As of December 31, 2019, the ratio was 0.30. · Consolidated Equity: A minimum equity of Ch$781,206 million must be maintained; this limit is adjusted at the end of each year as established in the indenture. Equity corresponds to Equity attributable to the shareholders of Enel Generación Chile. As of December 31, 2019, the equity of Enel Generación Chile was Ch$1,963,775 million. · Financial Expense Coverage: A financial expense coverage ratio of at least 1.85 must be maintained. Financial expense coverage is the quotient between i) the gross margin plus financial income and dividends received from investments in associates, and ii) financial expenses; both items refer to the period of four consecutive quarters ending on the quarter being reported. For the year ended December 31, 2019, this ratio was 10.43. · Net Asset Position with Related Companies: A net asset position with related companies of no more than US$500 million the equivalent amount in pesos, according to the exchange rate observed at the end of each quarter. The Net asset position with related companies is the difference between i) the sum of current accounts receivable from related parties of Current Assets and Accounts Receivable from Related Entities of Non-Current Assets and ii) the sum of Accounts Payable to Related Entities of Current Liabilities and Accounts Payable to Related Entities of Non-Current Liabilities. The corresponding amounts must be excluded from the above: i) transactions that have a duration of less than 180 days, and ii) transactions that refer to balances in checking accounts, documents and accounts of Enel Generación Chile or its subsidiaries that originate in the ordinary course of business of Enel Generación Chile or its subsidiaries. Likewise, transactions of affiliated companies of Enel Generación Chile and of affiliated companies of its subsidiaries should also be excluded, as long as the respective affiliated company Enel Chile S.A. has no participation, either directly or indirectly through a subsidiary or affiliated company of Enel Chile S.A., other than through Enel Generación Chile and its subsidiaries. As of December 31, 2019, using the exchange rate prevailing on that date, the Net asset position with related companies was a negative US$252.58 million, indicating that Enel Generación Chile is a net creditor of its related companies. Series M · Consolidated Debt Ratio: The consolidated debt ratio, which is Financial debt to Capitalization, must be less than or equal to 0.64. Financial debt is the sum of Interest-bearing loans, current; Interest-bearing loans, non-current; Other financial liabilities, current; and Other financial liabilities, non-current; while Capitalization is the sum of Financial liabilities, Equity attributable to the shareholders of the Company and Non-controlling interests. As of December 31, 2019, the debt ratio was 0.30. · Consolidated Equity: Same as for Series H. · Financial Expense Coverage Ratio: Same as for Series H. Yankee bonds of Enel Generación Chile and the debt sign on January 2018 by Enel Chile are not subject to financial covenants. As of December 31, 2019, the most restrictive financial covenant for Enel Generación Chile was Coverage ratio of Financial Expenses. The other Group companies not mentioned in this Note, are not subject to compliance with financial covenants. Finally, in most of the contracts, debt acceleration for non-compliance with these covenants does not occur automatically, but is subject to certain conditions, such as a grace period. As of December 31, 2019, neither the Company nor any company of the Group was in default under their financial obligations summarized herein or other financial obligations whose defaults might trigger the acceleration of their financial commitments.

Personnel Figures

Personnel Figures	12 Months Ended
	Dec. 31, 2019
PERSONNEL FIGURES
Personnel Figures	37. PERSONNEL FIGURES The Company’s personnel as of December 31, 2019 and 2018, is distributed as follows: December 31, 2019 Country Managers and key Professional and Staff and Total Chile 54 1,932 139 2,125 Argentina — 6 17 23 Total 54 1,938 156 2,148 Average December 31, 2018 Country Managersand key Professionals and Staff and Total Chile 57 1,824 155 2,036 Argentina — 7 19 26 Total 57 1,831 174 2,062 Average 53 1,874 169 2,096

Sanctions

Sanctions	12 Months Ended
	Dec. 31, 2019
SANCTIONS
Sanctions	38. SANCTIONS. The following Group companies have received sanctions from administrative authorities: 1. Enel Generación Chile S.A. As of December 31, 2019, 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$24,812) for alleged infractions by Enel Generación Chile S.A of obligations and regulations related to waste disposal regulations in the Cantarrana landfill, is pending. Two requests for reconsideration are pending with respect to the resolutions of the Tarapacá Regional Health Ministry, which, through inspection reports No. 011599 and 766, imposed fines in an amount of 500 UTM each (totaling ThCh$24,812). A health summary in the amount of 500 UTM (ThCh$24,812) is pending resolution before the Coquimbo Regional Health Ministry. Likewise, 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$24,812). 2. Enel Distribución Chile S.A. By means of Exempt Resolution No. 21,789 dated December 29, 2017, the Superintendency of Electricity and Fuels imposed on Enel Distribución Chile S.A. fines equivalent to 20,000 UTM (ThCh$992,460) for delivering erroneous information to the supervisory body regarding the replacement of the supply, in relation to the power supply outage that occurred on July 15, 2017 (the snowstorm event). Enel Distribución Chile has filed a request for reconsideration against this fine which is pending of resolution. 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$99,246) for Enel Distribución Chile S.A.’s failure to fulfill its obligation to maintain its electrical installations in good condition to comply with the demands of quality and continuity of supply, with regard to the fire that affected the San Joaquin substation on May 19, 2015. Enel Distribución Chile has filed a request for reconsideration against this fine which is pending of resolution. By means of Exempt Resolution No. 27.005 dated December 28, 2018 (received on January 28, 2019) the Superintendency of Electricity and Fuels imposed on Enel Distribución Chile S.A. a fine equivalent to 16,911 UTM (ThCh$839,175) due to Enel Distribución Chile exceeding the standard established in the supply continuity index for the 2015-2016 period. Enel Distribución Chile has filed a request for reconsideration against this fine which is pending of resolution. By means of Exempt Resolution No. 27,226 dated January 16, 2019, the Superintendency of Electricity and Fuels imposed on Enel Distribución Chile S.A. a fine equivalent to 5,500 UTM (ThCh$272,927) due to Enel Distribución Chile’s operation of its facilities in violation of the current electrical regulations, as it did not maintain its facilities in good condition, as evidenced by the failure to detect material fatigue at the Domínicos substation. Enel Distribución Chile has filed a request for reconsideration against this fine which is pending of resolution. By means of Exempt Resolution No. 30,198 dated August 16, 2019, the Superintendency of Electricity and Fuels imposed on Enel Distribución Chile S.A. a fine equivalent to 1,000 UTM (ThCh$49,623) due to Enel Distribución Chile’s operation of its facilities in violation of the current electrical regulations, as it did not maintain its facilities in good condition, as evidenced by the supply interruption that occurred in the communes of Lampa and Til Til. Enel Distribución Chile has filed a request for reconsideration against this fine which is pending of resolution. 3. Enel Green Power Chile Ltda. By means of Exempt Resolution No. 23787 dated May 14, 2018, the Superintendence of Electricity and Fuels imposed a fine of 1,000 UTM (ThCh$49,623) on Enel Green Power del Sur SpA for having violated an alleged duty of coordination during failures that occurred on May 7 and 13 and June 1, 2016 on the Los Buenos Aires-Nahuelbuta line, associated with the Los Buenos Aires wind plant, owned by Enel Green Power del Sur SpA. A request for reconsideration was filed against this resolution based on the fact that the alleged duty of of coordination did not exist, but the request for reconsideration was rejected. A claim of illegality against the resolution was filed before the Court of Appeals of Santiago, which rejected the appeal filed and confirmed the fine. The fine has been paid. In relation to the sanctions described above, the Group has established provisions for ThCh$2,349,758 as of December 31, 2019 (see Note 25). Although there are other sanctions that also have associated provisions but are not described in this note since they individually represent immaterial amounts, the management of the Company considers that the provisions recorded are adequate to cover the risks resulting from sanctions, and therefore do not expect additional liabilities other than those already specified.

Environment

Environment	12 Months Ended
	Dec. 31, 2019
ENVIRONMENT
Environment	39. Environmental expenses for the years ended December 31, 2019 and 2018 are as follows: 12-31-2019 12-31-2018 Company Incurring the Cost Name of project Description Project Status Total Amounts Expenses Disbursement Estimated Total Total from the previous year ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ PEHUENCHE CENTRAL Waste Management In process 3,165 — 3,165 — - 3,165 — Environmental Sanitation In process 1,988 — 1,988 — - 1,988 — Hydroelectric Central Environmental Expenditures C.H. Pehuenche E E Pehuenche S.A. Suministro de equipos de medicion de caudales. Finished — — — — - — 48,574 Empresa Electrica Pehuenche S.A. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste at hydroelectric power stations (HPS), thermoelectric power stations and combine cycle power stations. Finished — — — — - — 62,560 CURILLINQUE CENTRAL Campaigns and Studies In process 9,061 — 9,061 — - 9,061 — Environmental Sanitation In process 882 — 882 — - 882 — LOMA ALTA CENTRAL Environmental Sanitation In process 882 — 882 — - 882 — Removal of Asbestos from Underground Cables Removal of flame retardant tape with asbestos from the underground network MT. In process — — — — - — 383,914 ENVIRONMENTAL MONITORING Environmental monitoring with SK Ecología operation and maintenance CEMS In process 576,519 — 576,519 — - 576,519 797,543 CEMS STANDARDIZATION Standardization warehouses, environmental management, regularization environmental impact assessment (EIA) In process 207,966 207,966 — — - 207,966 645,302 HYDRAULIC POWER STATIONS Waste Management e higienización In process 2,315 — 2,315 — - 2,315 11,567 Enel Generación Chile S.A. CC.CC. ENVIRONMENTAL EXPENSES The main expenses incurred are: Bocamina U1-2: Operation and maintenance monitoring of air and meteorological quality stations, Environmental audit, monitoring network 1 a year, Annual CEMS Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Isokinetic Measurements , SGI Works (Objective NC, inspections, audits and inspection) ISO 14001, OHSAS certification, Operation and Maintenance Service CEMS. In process 1,452,158 855,667 596,491 855,667 31/12/2020 2,307,825 2,102,056 CC.TT. ENVIRONMENTAL EXPENSES Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In process 5,387,657 1,763,829 3,623,828 1,763,829 31/12/2020 7,151,486 2,867,523 CC.HH. ENVIRONMENTAL EXPENSES Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric power plants (C.H.) In process 339,103 — 339,103 420,877 31/12/2020 759,980 183,156 C.H. Ralco Plan Ralco: Reforestation according to Agreement with the Catholic University and Electrification of housing in Ayin Maipu Finished — — — — - — 4,542,216 QUINTERO CENTRAL CEMS Central Quinteros In process 458,001 110,923 347,078 37,983 31/12/2020 495,984 417,194 CHANGE OF TRAD X CALPE NETWORK Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In process 1,476,780 1,476,780 — — - 1,476,780 1,382,504 The service consists in the weeding and control of weeds in electric power substations in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. Finished 2,600 — 2,600 — - 2,600 154,048 VEGETATION CONTROL IN NETWORKS Poda de arboles en cercanias de la red de media tensión In process — — — — - — 6,292,641 This activity contemplates the maintenance of the band of easement of high voltage lines between 34,5 y 500kv. Finished 67,291 — 67,291 — - 67,291 — VEGETATION CONTROL IN MT/BT Mejora en la red tradicional por calpe (cable aluminio preensamblado) In process — — — — - — 392,475 Pruning of trees near the media network and low voltage. Finished 3,507,502 — 3,507,502 — - 3,507,502 — ENVIRONMENTAL PERMITS Environmental Impact Statement: 1) New Lampa Sectioning Substation and 2) Ochagavia - Florida Line, Sanjon La Aguada Section Finished — — — — - — 6,970 Enel Distribución Chile S.A. The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Finished 64,737 — 64,737 — - 64,737 52,016 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of the maintenance of green areas with replacement of species and turf in Enel substations enclosures. Finished 19,706 — 19,706 - 19,706 46,907 The removal and transfer to waste dump from a Substation was carried out. Finished 21,719 — 21,719 — - 21,719 — ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in Metropolitan Park. Finished 2,337 — 2,337 — - 2,337 6,634 IMPROVEMENTS IN THE MT NETWORK Network replacement for weardown MT protected cable In process 170,077 170,077 — — - 170,077 176,142 RESPEL MANAGEMENT Dangerous waste management Finished 103,847 — 103,847 — - 103,847 1,780 REPLACE TRIFAS TRANSFORMERS MEJ QUALITY BT Replacement of transformers with chargeability problems In process 1,168,343 1,168,343 — — - 1,168,343 2,642,064 REPLACEMENT TD DAE CONCENTRICA X TD. TRIF. RED CALPE Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In process 492,260 492,260 — — - 492,260 1,008,416 Enel Green Power del Sur Spa. Waste Management Finished 4,432 — 4,432 — - 4,432 — Carrera Pinto Environmental Sanitation Finished 6,466 — 6,466 — - 6,466 — Wastewater Treatment Plant Finished 4,436 — 4,436 — - 4,436 — Waste Management Finished 10,954 — 10,954 — - 10,954 — Finis Terrae Environmental Sanitation Finished 7,674 — 7,674 — - 7,674 — Wastewater Treatment Plant Finished 2,154 — 2,154 — - 2,154 — La Silla Environmental Sanitation Finished 2,902 — 2,902 — - 2,902 — Waste Management Finished 1,509 — 1,509 — - 1,509 — Campaigns and Studies Finished 20,613 — 20,613 — - 20,613 — Los Buenos Aires Environmental Sanitation Finished 3,989 — 3,989 — - 3,989 — Wastewater Treatment Plant Finished 882 — 882 — - 882 — Enel Green Power del Sur Spa. Environment Materials Finished 5,589 — 5,589 — - 5,589 — Waste Management Finished 5,098 — 5,098 — - 5,098 — Pampa Norte Environmental Sanitation Finished 6,618 — 6,618 — - 6,618 — Wastewater Treatment Plant Finished 3,459 — 3,459 — - 3,459 — Waste Management Finished 2,281 — 2,281 — - 2,281 — Campaigns and Studies Finished 83,820 — 83,820 — - 83,820 — Renaico Environmental Sanitation Finished 5,226 — 5,226 — - 5,226 — Wastewater Treatment Plant Finished 982 — 982 — - 982 — Environment Materials Finished 4,822 — 4,822 — - 4,822 — Outsourced Services Finished 53,970 — 53,970 — - 53,970 — Waste Management Finished 13,999 — 13,999 — - 13,999 — Sierra Gorda Campaigns and Studies Finished 42,959 — 42,959 — - 42,959 — Environmental Sanitation Finished 3,300 — 3,300 — - 3,300 — Wastewater Treatment Plant Finished 127 — 127 — - 127 — Waste Management Finished 1,613 — 1,613 — - 1,613 — Chañares Campaigns and Studies Finished 7,981 — 7,981 — - 7,981 — Environmental Sanitation Finished 5,262 — 5,262 — - 5,262 — Wastewater Treatment Plant Finished 5,591 — 5,591 — - 5,591 — Waste Management Finished 1,678 — 1,678 — - 1,678 — Lalackama Environmental Sanitation Finished 7,091 — 7,091 — - 7,091 — Empresa Electrica Panguipulli S.A. Wastewater Treatment Plant Finished 3,273 — 3,273 — - 3,273 — Pilmaiquen Waste Management Finished 1,450 — 1,450 — - 1,450 — Environmental Sanitation Finished 6,822 — 6,822 — - 6,822 — Waste Management Finished 785 — 785 — - 785 — Pullinque Campaigns and Studies Finished 2,627 — 2,627 — - 2,627 — Environmental Sanitation Finished 4,129 — 4,129 — - 4,129 — Environment Materials Finished 394 — 394 — - 394 — Talinay Poniente Campaigns and Studies Finished 46,026 — 46,026 — - 46,026 — Waste Management Finished 10,745 — 10,745 — - 10,745 — Parque Eolico Tal Tal SpA Taltal Campaigns and Studies Finished 44,656 — 44,656 — - 44,656 — Environmental Sanitation Finished 2,476 — 2,476 — - 2,476 — Wastewater Treatment Plant Finished 2,515 — 2,515 — - 2,515 — Waste Management Finished 11,546 — 11,546 — - 11,546 — Parque Eolico Valle de Los Vientos SpA Valle de los Vientos Campaigns and Studies Finished 20,216 — 20,216 — - 20,216 — Environmental Sanitation Finished 2,471 — 2,471 — - 2,471 — Waste Management Finished 11,865 — 11,865 — - 11,865 — Parque Eolico Talinay Oriente S.A. Talinay Oriente Campaigns and Studies Finished 63,666 — 63,666 — - 63,666 — Environmental Sanitation Finished 9,419 — 9,419 — - 9,419 — Wastewater Treatment Plant Finished 1,738 — 1,738 — - 1,738 — Waste Management Finished 10,087 — 10,087 — - 10,087 — Almeyda Solar Spa Diego de Almagro Environmental Sanitation Finished 5,216 — 5,216 — - 5,216 — Wastewater Treatment Plant Finished 6,040 — 6,040 — - 6,040 — Total 16,132,535 6,245,845 9,886,690 3,078,356 - 19,210,891 12,494,852 12-31-2018 12-31-2017 Company Incurring the Cost Name Project Project Status Total Amounts Expenses Disbursement Estimated Total Total Disbursement from the previous year Empresa Electrica Pehuenche S.A. Hydroelectric Central Environmental Expenditures C.H. Pehuenche E E Pehuenche S.A. Supply of flow measurement equipment. In progress 48,574 48,574 — — — 48,574 6,787 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste at hydroelectric power stations (HPS), thermoelectric power stations and combine cycle power stations. In progress 62,560 — 62,560 — 62,560 — Enel Distribución Chile S.A. Vegetation Control In Redesat It consists of cutting branches until the safety conditions to which the foliage must be left with respect to the drivers. In progress 134,394 — 134,394 19,654 154,048 306,419 Pruning of trees near the medium voltage network In progress 5,790,042 2,472,768 3,317,274 502,599 31-03-2019 6,292,641 Management Respel Dangerous waste management Finished 1,780 — 1,780 — 30-06-2018 1,780 Environmental management in Ssee The service consists of the maintenance of green areas with replacement of species and turf in Enel substations enclosures Finished 15,383 — 15,383 36,633 31-12-2018 52,016 The service consists in the weeding and control of weeds in electric power substations in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. In progress 46,339 — 46,339 568 31-03-2018 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 31-03-2019 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 31-03-2019 392,475 IMPROVEMENTS IN THE MT NETWORK Network replacement for weardown MT protected cable In progress 158,086 158,086 - 18,056 31-03-2019 176,142 CHANGE OF TRAD X CALPE NETWORK Traditional network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 851,792 851,792 - 530,712 31-03-2019 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 31-03-2019 1,008,416 REPLACE TRIFAS TRANSFORMERS MEJ QUALITY BT Replacement of transformers with chargeability problems 1,288,155 1,288,155 — 1,353,909 31-03-2019 2,642,064 ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in Cerro Chena and Metropolitan Park. 5,831 - 5,831 803 31-03-2019 6,634 Removal of Asbestos from Underground Cables Removal of flame retardant tape with asbestos from the underground network MT. In progress 265,577 146,300 119,277 118,337 31-03-2019 383,914 203,724 GasAtacama Chile Environmental monitoring Environmental monitoring with SK Ecología operation and maintenance CEMS. In progress 797,543 — 797,543 — 797,543 1,463,204 Standardization Cems Normalización bodegas, gestión ambiental. In progress 645,302 645,302 — — 645,302 1,021,630 Hydraulic power stations Waste management and sanitation In progress 11,567 - 11,567 11,567 Enel Generación Chile S.A. ENVIRONMENTAL EXPENSES CC.TT. The main expenses incurred are: Bocamina U1-2: Operation and maintenance monitoring of air and meteorological quality stations, Environmental audit, monitoring network 1 a year, Annual CEMS Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Isokinetic Measurements , SGI Works (Objective NC, inspections, audits and inspection) ISO 14001, OHSAS certification, Operation and Maintenance Service CEMS. In progress 2,102,056 — 2,102,056 — 2,102,056 1,252,355 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 2,867,523 — 2,867,523 — 2,867,523 251,277 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric power plants (C.H.) In progress 183,156 — 183,156 — 183,156 870,281 C.H. Ralco Plan Ralco: Reforestation according to Agreement with the Catholic University and Electrification of housing in Ayin Maipu In progress 4,542,216 4,542,216 — — 4,542,216 5,075,137 Central Quintero CEMS Central Quinteros In progress 417,194 417,194 — — 417,194 1,290,133 Total 20,968,708 11,304,025 9,664,683 3,255,494 24,224,202 11,740,947

Summarized Financial Informatio

Summarized Financial Information of Subsidiaries	12 Months Ended
	Dec. 31, 2019
SUMMARIZED FINANCIAL INFORMATION OF SUBSIDIARIES
Summarized Financial Information of Subsidiaries	40. SUMMARIZED FINANCIAL INFORMATION OF SUBSIDIARIES As of December 31, 2019 and 2018, summarized financial information of our principal subsidiaries is as follows: December 31, 2019 Type of Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Liabilities Revenues Raw Materials and Contribution Gross Operating Income Operating Financial Income Income Profit 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$ Enel Distribución Chile Group 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 del Sur 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 Enel Green Power Group 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 Enel Generación Chile Group 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 GasAtacama Chile S.A. Group Consolidated - - - - - -54061747 -107102417 -103917448 -47841224 -4396031 (52,237,255) December 31, 2018 Type of Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Liabilities Revenues Raw Materials and Contribution Gross Operating Income Operating Financial Income Income Profit 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$ Enel Distribución Chile Group 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 3,273,224,602 569,928,285 938,139,971 1,765,156,347 3,273,224,603 1,454,348,386 (1,051,644,602) 402,703,784 300,148,133 226,154,177 (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 46,238,191 140,275,039 230,972,614 162,768,188 (21,539,174) 141,229,014 135,558,558 128,068,159 224,543 128,348,399 (34,669,191) 93,679,208 — 93,679,208 Enel Green Power Chile Ltda. Separate 162,710,963 669,741,595 832,452,558 113,123,832 125,240,941 594,087,786 832,452,559 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) 39,777,323 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) 73,449,346 60,053,812 37,537,228 (24,991,814) 12,545,413 (3,455,173) 9,090,240 34,497,623 43,587,863 Enel Green Power Group 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 Enel Generación Chile Group 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 GasAtacama Chile S.A. Group 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) 87,093,211 (5,273,886) 81,819,325 December 31, 2017 Type of Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Income Operating Financial Income Income Profit 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$ Enel Distribución Chile Group Consolidated 261,378,069 893,633,580 1,155,011,649 408,687,866 61,965,918 684,357,865 1,155,011,649 1,333,027,456 (1,062,076,645) 270,950,811 177,188,798 132,510,164 6,411,839 139,079,732 (34,030,322) 105,049,408 1,515,176 106,564,584 Enel Generación Chile S.A. Separate 590,543,532 2,602,962,586 3,193,506,118 489,875,667 891,083,155 1,812,547,296 3,193,506,118 1,629,277,585 (1,140,707,431) 488,570,154 364,131,027 285,498,271 (37,647,691) 528,254,308 (60,153,339) 468,100,969 72,617,351 540,718,320 Enel Distribucion Chile S.A. Separate 257,229,219 887,681,380 1,144,910,599 393,273,852 61,523,557 690,113,190 1,144,910,599 1,330,023,450 (1,060,875,186) 269,148,264 176,635,873 133,340,940 5,252,070 138,806,087 (35,037,127) 103,768,960 1,543,151 105,312,110 Empresa Eléctrica Pehuenche S.A. Separate 35,369,243 186,760,346 222,129,589 38,310,560 48,261,590 135,557,439 222,129,589 152,501,383 (36,289,330) 116,212,053 110,957,039 103,556,904 (395,231) 103,206,672 (26,346,081) 76,860,591 — 76,860,591 Enel Generación Chile Group Consolidated 662,804,359 2,891,657,830 3,554,462,189 543,356,500 1,022,091,737 1,989,013,952 3,554,462,189 1,634,937,088 (903,978,007) 730,959,081 581,142,074 463,860,015 (36,610,248) 537,641,733 (112,099,519) 425,542,214 67,663,516 493,205,730 GasAtacama Chile S.A. Group Consolidated 182,143,224 611,319,090 793,462,314 75,370,131 83,894,880 634,197,303 793,462,314 307,272,380 (170,752,796) 136,519,584 106,213,750 70,509,184 1,432,674 80,142,531 (25,417,139) 54,725,392 (3,338,115) 51,387,277

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2019
SUBSEQUENT EVENTS
Subsequent Events	41. SUBSEQUENT EVENTS On January 30, 2020, the World Health Organization (WHO) declared the outbreak of a novel coronavirus 2019, or COVID-19, “Public Health Emergency of International Concern.” On March 11, 2020, the WHO confirmed that the outbreak of the COVID-19 has risen to the level of a pandemic, which could significantly affect Chile, as well as our trading partners inside and outside the country. On March 18, 2020, to deal with this international public health emergency of COVID-19, President Sebastián Piñera decreed a state of emergency establishing numerous containment measures, essentially aimed at restricting the free movement of people, which include curfews, selective mandatory quarantines in affected areas, prohibition of mass gatherings and the temporary closure of companies and businesses, among other measures. In this context, our subsidiary Enel Distribución Chile announced some preventive measures, such as stopping reading meters and focusing activities in the field on operations essential for continuity of supply. Likewise, it announced extraordinary measures to support the most vulnerable families, consisting of the suspension of the cut in supply for non-payment and the offering of payment facilities in installments, without any initial payment and without interest, for those who have a debt with the company. In parallel, the Chilean Congress has discussed various parliamentary initiatives whose objective is to preserve access to essential services, such as water, electricity, and telecommunications, which seek to support lower-income residential clients, vulnerable clients, microenterprises, and institutions that provide other essential services, such as health facilities. In the case of Enel Chile, the measures contemplated in the different projects of law basically refer to the temporary suspension of the ability of the distribution companies to cut the electricity supply due to late payment, and the rescheduling of the debts that are generated during the state of catastrophe, for the clients that require it. In this sense, the Group has issued guidelines aimed at ensuring compliance with the measures introduced by the government and taken numerous steps to adopt the most suitable procedures to prevent and/or mitigate the effects of contagion by COVID-19 in the workplace, while ensuring business continuity. This has been possible due to: · the use of telecommuting for all employees whose jobs can be done remotely, an approach introduced some years ago that required investments in digitalization, allows our people to work remotely at the same level of efficiency and effectiveness; · the digitization of processes and infrastructure, that ensure the normal operation of our generation assets, the continuity of electricity service and the remote management of all activities relating to the market and our relationship with customers. Based on the information currently available, in a scenario of continuous evolution, regarding the spread of infections and the containment measures taken by government of Chile, it is not possible at this time to quantify the effects that the COVID-19 pandemic could have in our business. However, because our Group has an integrated business model throughout the value chain, a solid financial structure and a level of digitization that allows us to guarantee the continuity of operational activities with the same level of service, as of the date of presentation of this report, there is no evidence of a significant impact of COVID-19 on the Group. There have been no other subsequent events between January 1, 2020 and the issuance date of these financial statements.

Appendix 1 Details of Assets an

Appendix 1 Details of Assets and Liabilities in Foreign Currency	12 Months Ended
	Dec. 31, 2019
APPENDIX 1 DETAILS OF ASSETS AND LIABILITIES IN FOREIGN CURRENCY
Appendix 1 Details of Assets and Liabilities in Foreign Currency	APPENDIX 1 DETAILS OF ASSETS AND LIABILITIES IN FOREIGN CURRENCY: This appendix forms an integral part of the Group’s consolidated financial statements. The detail of assets and liabilities denominated in foreign currency is as follows: 12-31-2019 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 - 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 3,678,912,343 1,638,296,993 7,763,853 - - - 5,360,319,624 Investment property - 6,795,155 - - - - - 6,795,155 Deferred tax assets - 6,530,201 15,318,038 - - - - 21,848,239 TOTAL NON CURRENT ASSETS 35,403,385 4,887,329,189 1,909,279,077 7,763,853 - - - 6,839,775,504 TOTAL ASSETS 36,164,168 5,787,845,364 - 1,993,773,260 - 31,809,547 - 833,336 - 7,096,519 - 465,970 - 7,857,988,164 0 12-31-2018 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 - 222,434,412 16,575,872 103,847 - 6,057,793 - 245,171,924 Other current financial assets 689,145 644,618 38,969,410 - - - - 40,303,173 Other current non-financial assets 816,871 17,838,717 2,832,782 - - 917,718 - 22,406,088 Trade and other current receivables - 474,941,686 3,193,959 3,905 - 30,517 - 478,170,067 Current accounts receivable from related parties - 20,673,951 6,997,861 26,475,919 - - 23,329 54,171,060 Inventories - 52,510,509 4,451,134 - - - - 56,961,643 Current tax assets - 99,614,294 3,678 - - 145,845 - 99,763,817 TOTAL CURRENT ASSETS 1,506,016 888,658,187 73,024,696 26,583,671 - 7,151,873 23,329 996,947,772 NON-CURRENT ASSETS Other non-current financial assets 689,145 2,352,896 4,227,628 - - - - 7,269,669 Other non-current non-financial assets - 44,390,009 - - - 218,003 - 44,608,012 Trade and other non-current receivables 10,005,806 33,425,943 17,074,839 - - 21,255 - 60,527,843 Non-current accounts receivable from related parties - - - - - - - - Investments accounted for using the equity method - 9,520,350 3,052,983 - - 300,198 - 12,873,531 Intangible assets other than goodwill - 70,247,490 44,865,424 - - 259,479 - 115,372,393 Goodwill - 907,404,478 7,640,247 - - - - 915,044,725 Property, plant and equipment - 3,769,310,697 1,523,774,815 - - 15,562,121 - 5,308,647,633 Investment property - 7,557,356 - - - - 7,557,356 Deferred tax assets - 1,115,799 18,055,431 - - - - 19,171,230 TOTAL NON CURRENT ASSETS 10,694,951 4,845,325,018 1,618,691,367 - - 16,361,056 - 6,491,072,392 TOTAL ASSETS 12,200,967 5,733,983,205 1,691,716,063 26,583,671 - 23,512,929 23,329 7,488,020,164 12-31-2019 LIABILITIES U.F. Chilean Peso U.S. dollar Euro Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 35,217,441 20,005 178,791,077 628,053 - Trade and other current payables 5,215,585 523,504,426 66,209,531 4,333,666 - Current accounts payable to related parties - 38,133,907 11,910,024 109,765,956 - Other current provisions - 4,065,965 - - - Current tax liabilities - 17,940,784 55,049 - - Other current non-financial liabilities 254,084 38,929,298 2,933,274 3,391,727 - TOTAL CURRENT LIABILITIES 40,687,110 622,594,385 259,898,955 118,119,402 - 1,041,299,852 NON-CURRENT LIABILITIES Other non-current financial liabilities 301,707,185 68,922 1,431,324,011 7,069,801 - Trade and other non-current payables - 27,661 56,222,424 - - Non-current accounts receivable to related parties - - 486,839,483 297,534,001 - Other long-term provisions - 155,315,044 16,545,238 - - Deferred tax liabilities - 161,017,178 88,267,463 - - Non-current provisions for employee benefits - 65,531,375 632,115 - - Other non-current non-financial liabilities - 1,302,759 - - - TOTAL NON-CURRENT LIABILITIES 301,707,185 383,262,939 2,079,830,734 304,603,802 - 3,069,404,660 TOTAL LIABILITIES 342,394,295 1,005,857,324 2,339,729,689 422,723,204 - 4,110,704,512 12-31-2018 LIABILITIES U.F. Chilean Peso U.S. dollar Euro Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 32,142,094 212,736,911 165,786,810 - - Trade and other current payables 3,598,849 503,689,338 44,138,753 2,347,924 511,460 Current accounts payable to related parties - 74,991,622 324,743 82,619,960 - Other current provisions - 5,551,609 12,510 - 24,667 Current tax liabilities - 17,243,717 22,626 - 411,577 Other current non-financial liabilities - 68,532,059 2,766,862 - 10,061 TOTAL CURRENT LIABILITIES 35,740,943 882,745,256 213,052,304 84,967,884 957,765 1,217,464,152 NON-CURRENT LIABILITIES Other non-current financial liabilities 297,118,435 - 1,408,715,068 - - Trade and other non-current payables - 2,553,056 31,124 - - Non-current accounts receivable to related parties - - 447,193,802 - - Other long-term provisions - 93,478,990 12,392,385 - - Deferred tax liabilities - 203,349,899 74,730,155 - - Non-current provisions for employee benefits - 56,070,439 532,225 - - Other non-current non-financial liabilities - 226,653 - - - TOTAL NON-CURRENT LIABILITIES 297,118,435 355,679,037 1,943,594,759 - - 2,596,392,231 TOTAL LIABILITIES 332,859,378 1,238,424,293 2,156,647,063 84,967,884 957,765 3,813,856,383

Appendix 2 Additional Informati

Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012	12 Months Ended
	Dec. 31, 2019
TRADE AND OTHER RECEIVABLES.
Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012	APPENDIX 2 ADDITIONAL INFORMATION OFICIO CIRCULAR (OFFICIAL BULLETIN) No. 715 OF This appendix forms an integral part of these consolidated financial statements. a) Portfolio stratification · Trade and other receivables by aging: As of December 31, 2019 Current 1-30 days 31-60 61-90 91-120 121-150 151-180 181-210 211-250 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) (34,055,770) (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 43,836,460 — — — — — — — — 9,883,938 53,720,398 3,734,116 Impairment provision (55,690) — — — — — — — — (9,883,938) (9,939,628) — Total 445,500,892 32,102,797 7,445,293 4,113,180 2,320,709 1,908,418 2,233,138 1,253,184 1,396,602 13,181,117 511,455,330 313,574,385 As of December 31, 2018 Current 1-30 31-60 days 61-90 91-120 121-150 151-180 181-210 211-250 More than Total Total Non- Trade and Other Receivables ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, gross 360,967,952 26,520,834 8,065,762 3,947,386 2,096,447 1,400,998 1,945,691 1,528,489 2,863,502 47,716,556 457,053,617 2,046,845 Allowance for doubtful accounts (1,309,684) (244,773) (260,401) (317,546) (419,163) (523,349) (584,135) (634,104) (2,085,824) (32,747,456) (39,126,435) — Other receivables, gross 60,242,885 — — — — — — — — 10,353,445 70,596,330 58,480,998 Allowance for doubtful accounts — — — — — — — — — (10,353,445) (10,353,445) — Total 419,901,153 26,276,061 7,805,361 3,629,840 1,677,284 877,649 1,361,556 894,385 777,678 14,969,100 478,170,067 60,527,843 · By type of portfolio: December 31, 2019 December 31, 2018 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 Aging of balances Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Current 1,340,828 469,633,677 36,952 116,079,889 1,377,780 585,713,566 1,370,536 353,865,825 42,898 9,101,666 1,413,434 362,967,491 1 to 30 days 433,225 30,871,310 21,280 1,588,701 454,505 32,460,011 390,536 25,894,683 19,304 626,151 409,840 26,520,834 31 to 60 days 106,521 7,630,607 8,018 298,708 114,539 7,929,315 83,029 7,864,638 6,649 201,124 89,678 8,065,762 61 to 90 days 17,349 4,363,345 2,080 336,938 19,429 4,700,283 14,466 3,827,182 2,014 120,204 16,480 3,947,386 91 to 120 days 11,084 2,852,961 1,661 144,836 12,745 2,997,797 7,515 2,007,221 1,182 89,226 8,697 2,096,447 121 to 150 days 5,819 2,510,766 1,256 243,600 7,075 2,754,366 4,393 1,266,995 892 134,003 5,285 1,400,998 151 to 180 days 3,962 2,863,659 544 174,046 4,506 3,037,705 3,007 1,697,721 459 247,970 3,466 1,945,691 181 to 210 days 3,647 2,571,731 377 95,368 4,024 2,667,099 2,805 1,446,409 311 82,080 3,116 1,528,489 211 to 250 days 2,677 2,421,028 342 89,655 3,019 2,510,683 3,237 2,772,883 311 90,619 3,548 2,863,502 More than 251 days 114,518 46,531,813 6,517 705,074 121,035 47,236,887 20,876 47,255,348 5,769 508,514 26,645 47,763,862 Total 2,039,630 572,250,897 79,027 119,756,815 2,118,657 692,007,712 1,900,400 447,898,905 79,789 11,201,557 1,980,189 459,100,462 a) Portfolio in default and in legal collection process As of December 31, 2019 2018 Number of Amount Number of Amount Portfolio in Default and in Legal Collection Process Customers ThCh$ Customers ThCh$ Notes receivable in default 1,888 258,073 1,876 258,372 Notes receivable in legal collection process (*) 1,287 6,313,513 2,238 10,450,383 Total 3,175 6,571,586 4,114 10,708,755 (*) c) Provisions and write-offs As of December 31, 2019 2018 Provisions and Write-offs ThCh$ ThCh$ Provision for non-renegotiated portfolio 4,403,135 2,318,330 Provision for renegotiated portfolio 5,643,865 2,461,643 Recoveries of the period — 3,099 Total 10,047,000 4,783,072 d) Number and value of operations December 31, 2019 December 31, 2018 Total detail by Total detail by Total detail by Total detail by Number and Value of Operations Last Quarter Year-to-date Last Quarter Year-to-date Impairment provisions and recoveries: Number of operations 52,870 88,750 7,357 19,810 Value of operations, in ThCh$ 2,451,690 10,047,000 1,596,443 4,783,072 APPENDIX 2.1 SUPPLEMENTARY INFORMATION ON TRADE RECEIVABLES: This appendix forms an integral part of these consolidated financial statements. a) · Trade receivables by aging: December 31, 2019 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 More than Total Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION Non-renegotiated portfolio 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 customers 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 — 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 86,403,772 DISTRIBUTION Non-renegotiated portfolio 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 3,635,526 287,518,186 105,563,157 - Mass-market customers 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 customers 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 customers 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 — 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 36,006,951 145,777,617 105,563,157 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 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 Net Portfolio 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 December 31, 2018 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 More than Total Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION Non-renegotiated portfolio 206,893,035 1,155,988 1,453,308 708,552 203,487 7,836 39,787 483,751 153,929 1,300,506 5,415,159 217,815,338 21,255 - Large customers 198,424,050 671,037 248,135 140,571 224 7,274 39,001 43,681 56,046 787,999 5,047,281 205,465,299 — - Institutional customers — — — — — — — — — — — — — - Others 8,468,985 484,951 1,205,173 567,981 203,263 562 786 440,070 97,883 512,507 367,878 12,350,039 21,255 Allowance for impairment (21,736) — — — — — — — — — (1,505,948) (1,527,684) — Unbilled services 165,128,644 — — — — — — — — — — 165,128,644 — Billed services 41,764,391 1,155,988 1,453,308 708,552 203,487 7,836 39,787 483,751 153,929 1,300,506 5,415,159 52,686,694 21,255 DISTRIBUTION Non-renegotiated portfolio 154,074,917 25,364,846 6,612,454 3,238,834 1,892,960 1,393,162 1,905,904 1,044,738 2,709,573 4,596,217 36,404,674 239,238,279 2,025,590 - Mass-market customers 108,952,722 16,661,831 3,571,670 1,427,141 1,076,288 850,571 715,174 531,508 2,195,894 1,759,264 23,737,029 161,479,092 2,000,955 - Large customers 38,529,866 6,924,749 1,662,569 1,225,278 102,522 475 918,487 124,385 164,424 1,619,025 6,326,539 57,598,319 24,635 - Institutional customers 6,592,329 1,778,266 1,378,215 586,415 714,150 542,116 272,243 388,845 349,255 1,217,928 6,341,106 20,160,868 — Allowance for impairment (1,287,948) (244,773) (260,401) (317,546) (419,163) (523,349) (584,135) (634,104) (2,085,824) (2,255,798) (28,985,710) (37,598,751) — Unbilled services 92,576,381 — — — — — — — — — — 92,576,381 — Billed services 61,498,536 25,364,846 6,612,454 3,238,834 1,892,960 1,393,162 1,905,904 1,044,738 2,709,573 4,596,217 36,404,674 146,661,898 2,025,590 Total Gross Portfolio 360,967,952 26,520,834 8,065,762 3,947,386 2,096,447 1,400,998 1,945,691 1,528,489 2,863,502 5,896,723 41,819,833 457,053,617 2,046,845 Total allowance for impairment (1,309,684) (244,773) (260,401) (317,546) (419,163) (523,349) (584,135) (634,104) (2,085,824) (2,255,798) (30,491,658) (39,126,435) — Total Net Portfolio 359,658,268 26,276,061 7,805,361 3,629,840 1,677,284 877,649 1,361,556 894,385 777,678 3,640,925 11,328,175 417,927,182 2,046,845 Since not all of our commercial databases in our Group’s subsidiaries distinguish whether the final electricity service consumer is a natural or legal person, the main management segmentation used by all the consolidated entities to monitor and follow up on trade receivables is the following: · Mass-market customers · Large customers · Institutional customers · By type of portfolio: December 31, 2019 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 Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION 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 December 31, 2018 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 Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION Non-renegotiated portfolio 206,862,868 1,155,988 1,453,308 708,552 203,487 7,836 39,787 483,751 153,929 6,715,665 217,785,171 — - Large customers 198,424,050 671,037 248,135 140,571 224 7,274 39,001 43,681 56,046 5,835,279 205,465,298 — - Institutional customers — — — — — — — — — — — — - Others 8,438,818 484,951 1,205,173 567,981 203,263 562 786 440,070 97,883 880,386 12,319,873 — Renegotiated portfolio 30,167 — — — — — — — — — 30,167 21,255 - Large customers — — — — — — — — — — — — - Institutional customers — — — — — — — — — — — — - Others 30,167 — — — — — — — — — 30,167 21,255 DISTRIBUTION Non-renegotiated portfolio 146,934,065 24,738,695 6,411,330 3,118,630 1,803,734 1,259,159 1,657,934 962,658 2,618,954 40,492,377 229,997,536 116,198 - Mass-market customers 101,990,338 16,096,927 3,374,622 1,306,937 987,071 716,568 577,969 449,428 2,105,275 25,035,379 152,640,514 116,198 - Large customers 38,401,049 6,873,601 1,662,570 1,225,278 102,522 475 918,487 124,385 164,424 7,898,789 57,371,580 — - Institutional customers 6,542,678 1,768,167 1,374,138 586,415 714,141 542,116 161,478 388,845 349,255 7,558,209 19,985,442 — Renegotiated portfolio 7,140,852 626,151 201,124 120,204 89,226 134,003 247,970 82,080 90,619 508,514 9,240,743 1,909,392 - Mass-market customers 6,962,383 564,903 197,048 120,204 89,217 134,003 137,205 82,080 90,619 460,914 8,838,576 1,884,757 - Large Customers 128,817 51,148 — — — — — — — 46,775 226,740 24,635 - Institutional Customers 49,652 10,100 4,076 — 9 — 110,765 — — 825 175,427 — Total Gross Portfolio 360,967,952 26,520,834 8,065,762 3,947,386 2,096,447 1,400,998 1,945,691 1,528,489 2,863,502 47,716,556 457,053,617 2,046,845 APPENDIX 2.2 ESTIMATED SALES AND PURCHASES OF ENERGY AND CAPACITY: This appendix forms an integral part of these consolidated financial statements. 12-31-2019 12-31-2018 Energy and Capacity Tolls Energy and Capacity Tolls STATEMENT OF FINANCIAL POSITION ThCh$ ThCh$ ThCh$ ThCh$ Trade and other current receivables 310,301,370 13,929,209 209,288,934 46,336,070 Total Estimated Assets 310,301,370 13,929,209 209,288,934 46,336,070 Trade and other current payables 125,130,599 20,059,576 106,633,306 37,530,511 Total Estimated Liabilities 125,130,599 20,059,576 106,633,306 37,530,511 12-31-2019 12-31-2018 Energy and Capacity Tolls Energy and Capacity Tolls INCOME STATEMENT ThCh$ ThCh$ ThCh$ ThCh$ Energy Sales 310,301,370 13,929,209 209,288,934 46,336,070 Energy Purchases 125,130,599 20,059,576 106,633,306 37,530,511

Appendix 3 Details of Due Dates

Appendix 3 Details of Due Dates of Payments to Suppliers	12 Months Ended
	Dec. 31, 2019
APPENDIX 3 DETAILS OF DUE DATES OF PAYMENTS TO SUPPLIERS
Appendix 3 Details of Due Dates of Payments to Suppliers	APPENDIX 3 DETAILS OF DUE DATES OF PAYMENTS TO SUPPLIERS: This appendix forms an integral part of these consolidated financial statements. December 31, 2019 December 31, 2018 Goods Services Other Total Goods Services Other Total Suppliers with Current Payments ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Up to 30 days 101,666,302 148,397,518 121,111,092 371,174,912 45,355,153 230,133,777 78,973,248 354,462,178 From 31 to 60 days 5,579,618 71,069,622 219,965 76,869,205 4,284,025 19,179,502 71,745,150 95,208,677 From 61 to 90 days 9,045,950 1,118,102 11,177,955 21,342,007 16,452,406 — — 16,452,406 From 91 to 120 days — — — — — — — — From 121 to 365 days 48,102,870 — — 48,102,870 — — — — More than 365 days — 487 56,222,424 56,222,911 — 6,766 2,106,099 2,112,865 Total 164,394,740 220,585,729 188,731,436 573,711,905 66,091,584 249,320,045 152,824,497 468,236,126 December 31, 2019 December 31, 2018 Goods Services Other Total Goods Services Other Total Suppliers details ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Suppliers for energy purchase - - - Suppliers for fuel and gas purchases - - - - Accounts payable for goods and services - - Accounts payable for asset purchases - - Total

Accounting Policies (Policies)

Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
ACCOUNTING POLICIES.
Property, plant and equipment	a) Property, plant and equipment Property, plant and equipment are measured, with general character, at acquisition cost, net of accumulated depreciation and any impairment losses they may have experienced. In addition to the price paid to acquire each item, the cost also includes, where applicable, the following concepts: · Financing expenses accrued during the construction period that are directly attributable to the acquisition, construction, or production of qualified 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 one that exceeds twelve months. The interest rate used is that of the specific financing or, if none exists, the weighted average financing rate of the company carrying out the investment. (see Note 18.b.1). · Employee expenses directly related to construction in progress. (see Note 18.b.2). · Future disbursements that the Group will have to incur to close its facilities are added to the value of the asset at fair value, recognizing the corresponding provision for dismantling or restoration. The Group reviews its estimate of these future disbursements on an annual basis, increasing or decreasing the value of the asset based on the results of this estimate (see Note 25). Items for construction work in progress 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 longer useful life are capitalized as increasing the cost of the corresponding 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 for the respective assets, derecognizing the replaced or overhauled components. Expenditures for periodic maintenance, conservation 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 table are the main categories of property, plant and equipment with their respective estimated useful lives: Categories of Property, plant and equipment Years of estimated Buildings 10 – 60 Plant and equipment 6 – 65 IT equipment 3 – 15 Fixtures and fittings 2 – 35 Motor vehicles 5 – 10 Additionally, the following table sets forth more details on the useful lives of plant and equipment items: Categories of Property, plant and equipment Years of estimated Generating facilities: Hydroelectric plants Civil engineering works 10 – 65 Electromechanical equipment 10 – 45 Fuel oil/coal-fired power plants 20 – 40 Combined cycle power plants 10 – 25 Renewable energy power plants 20 Transmission and distribution facilities: 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 transport facilities 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 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 that arise from the sale or disposal of items of Property, plant and equipment are recognized as “Other gains (losses)” in the comprehensive income statement and are calculated by deducting the net carrying amount of the asset and any sales expenses from the amount received in the sale.
Investment property	b) Investment property “Investment property” includes basically land and buildings that are kept for the purpose of obtaining profits in future sales or lease arrangements. Investment property is measured at acquisition cost, net of accumulated depreciation and any impairment losses they may have experienced. Investment properties, excluding land, are depreciated by distributing the cost of the various elements that make them up 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 that arise from the sale or disposal of items of investment property are recognized as “Other gains (losses)” in the comprehensive income statement and are calculated by deducting the net carrying amount of the asset and any sales costs from the consideration received in the sale.The breakdown of the fair value of investment property is detailed in Note 19.
Goodwill	c) Goodwill Goodwill arising from business combinations, and reflected upon consolidation, represents the excess value of the consideration paid plus the amount of any non-controlling interests over the Group’s share of the net value of the assets acquired and liabilities assumed, measured at fair value at the acquisition date. If the accounting for a business combination is completed within the following year after the acquisition date, and so is the goodwill determination, the entity recognizes the corresponding adjustments to the provisional amounts as if the accounting for the business combination had been completed at the acquisition date. If the accounting for a business combination is completed within the following year after the acquisition date, and thus the goodwill determination as well, the entity recognizes the corresponding adjustments to the provisional amounts as if the accounting for the business combination had been completed at the acquisition date (see Note 2.7.1). Goodwill arising from acquisition of companies with functional currencies other than the Chilean peso is measured in the functional currency of the acquired company and translated to Chilean pesos using the exchange rate effective as of the date of the statement of financial position. Goodwill is not amortized; instead, at the end of each reporting period or when there are indicators that an impairment might have occurred, the Group estimates whether any impairment loss has reduced its recoverable amount to an amount less than the carrying amount and, if so, an impairment loss is immediately recognized in profit or loss (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 they may have experienced. Intangible assets are amortized on a straight line basis during their useful lives, starting from the date when they are ready for use, except for those with an indefinite useful life, which are not amortized. As of December 31, 2019 and 2018, there are no significant intangible assets with an indefinite useful life. An intangible asset is derecognized on disposal, or when no future economic benefits are expected from use or disposal. Gains or losses arising from sales of intangible assets are recognized in profit or loss for the period and are determined as the difference between the sale value and the net book value of the asset. The criteria for recognizing these assets’ impairment losses and, if applicable, recovery of impairment losses recorded in previous periods are explained in Note 3.e 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 Other intangible assets correspond to computer software, water rights, and easements. They are initially recognized at acquisition or production cost and are subsequently measured at cost less 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, therefore, are not amortized.
Impairment of non-financial assets	e) Impairment of non-financial assets During the year, and principally 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 exist, the Group estimates the recoverable amount of that asset to determine the amount of the impairment loss. In the case of 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, in the case of CGU’s to which goodwill or intangible assets with indefinite useful lives have been allocated, a recoverability analysis is performed routinely at each period end. The criteria used to identify the CGUs are based, in line with the strategic and operational vision of management, on the specific characteristics of the business, on the operating standards and regulations of the market in which the Group operates and on the 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, the Group uses value in use criteria in practically all cases. To estimate value in use, the Group prepares future pre-tax cash flow projections based on the most recent budgets available. These budgets incorporate management’s best estimates of a CGU’s revenue and costs using sector projections, past experience and future expectations. In general, these projections cover the next five 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 and country in which the Group operates. As of December 31, 2019, the growth rate used to extrapolate the projections was between 2% and 3%. 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 minimum and maximum pre-tax discount rates applied in the period ended December 31, 2019 expressed in nominal terms were 7.7% and 10.7%, respectively. The Company’s approach to allocate value to each key element used to project cash flows, considers: - Evolution of demand: the growth estimate has been calculated based on the projected increase of the Gross Domestic Product (GDP), in addition to other assumptions used by the Company regarding the evolution of consumption. - Energy purchase and sale prices: based on specifically developed internal projection models. The price of the planned “pool” is estimated by considering a series of determining factors, such as the various technologies’ costs and productions and electricity 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 ones, and therefore the projections include adequate application of the current standards and those that are currently in development, and those expected to be valid during the projected period. - Installed capacity: in the estimate of the Group’s installed capacity, the existing facilities are taken into account, as well as the plans for both increasing and closing down capacity. 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. The necessary investments are taken into account to maintain the installed capacity in appropriate operating conditions. - Hydrology and NCRE: the projections are made from historical series of meteorological conditions and, based on them, an average year is projected. - Fuel costs: to estimate fuel costs, existing supply contracts are taken into account and long-term projections of oil, gas or coal prices are made, based on forward markets and available analyst estimates. - Fixed costs: they are projected considering the foreseen level of business, 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 of digitalization of internal processes. - External sources are always considered to check against them hypotheses related to the macroeconomic environment such as price developments, GDP growth, demand, inflation, interest rates and exchange rates, among others. Past experience has demonstrated the reliability of the Company's projections, which allows the key assumptions to be based on historical information. During 2019 the deviations observed with respect to the expectations established in the projections used to conduct the impairment tests as of December 31, 2018 have not been significant and the cash flows generated in 2019 were similar to those expected for that year, with the exception of the effect of the agreement signed in June 2019 between Enel Generación Chile and the Ministry of Energy for the progressive withdrawal of generating units running on coal (see Note 18.e.x) and the effect of Law 21,185, approved in October 2019, which establishes the mechanism for stabilizing electricity prices for customers subject to rate regulation (see Notes 4 and 11). If the recoverable amount of the CGU is less than the net carrying amount of the asset, the corresponding impairment loss is recognized for the difference, and charged to “Reversal of impairment loss (impairment loss) 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 its fair value less costs of disposal, or its value in use, a negative amount may not 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 and crediting 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. In the case of goodwill, impairment losses are not reversed.
Leases	f) Leases In order to determine whether an arrangement is, or contains, a lease, the Group assesses the economic substance of the agreement, assessing whether the agreement transfers 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. When the Group acts as 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 new 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 if there is reasonable certainty that the lessee will acquire ownership of the asset at the end of the lease. If there is no such certainty, the asset is depreciated over the shorter of the asset’s useful life or the lease term. The same criteria detailed in Note 3.e are applied to determine whether the right-of-use asset has become impaired. The lease liability is 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 IBR is the rate of interest that the Group would have to pay to borrow over a similar term, and with a similar security, the funds necessary to obtain an asset of a similar value to the right-of-use asset in a similar economic environment. The lease payments included in the measurement of the liability comprise: (i) fixed payments, less any lease incentive receivable; (ii) variable lease payments that depend on an index or rate; (iii) residual value guarantees; (iv) purchase option exercise price if it is reasonably certain the Group will exercise that option ; and (v) lease termination penalties, if any. After the start 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 exempted from the application of the recognition criteria described above, recording the payments associated with the lease as expense on a straight-line basis over the term of the lease. When the Group acts as lessor, it classifies at the inception of the agreement the lease as operating or finance, based on the substance of the transaction. Leases in which all the risks and rewards inherent to the ownership to the underlying asset are substantially transferred are classified as finance leases. All other leases are classified as operating leases. In the case of finance leases, at the inception date, the company recognizes in its statement of financial position the assets held under finance leases and presents them as an account receivable, equal in value 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. In the case of operating leases, lease payments are recognized as income on a straight-line basis over the lease term, unless some other systematic basis of allocation is more representative. The initial direct costs incurred in obtaining an operating lease are added to the book value 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 15) and non-current assets and disposal groups held for sale or distribution to owners, into three categories (see Note 3.k): · Amortized cost: This category includes the financial assets that meet the following conditions (i) the business model that supports it aims to maintain the financial assets to obtain the contractual cash flows, and (ii) the contractual terms of 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: accounts receivable, loans and cash equivalents. These 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 rate method. The effective interest rate method is a method of 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 expenses 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. · 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 comply with the SPPI criterion. These investments are recognized in the consolidated statement of financial position at fair value when it is possible to determine reliably. In the case of holdings in unlisted companies or companies with low liquidity, it is usually not possible to determine the fair value reliably. Therefore, when this circumstance 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 such time as the disposal of these financial assets takes place, at which time the accumulated amount in this section is fully posted in the result for the period with the exception of investments in equity instruments where the accumulated other comprehensive balance is reclassified to retained earnings. 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 can not be considered as temporary, the difference is recorded directly in the losses for the period · 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 administered and assessed according to the fair value criterion, and the financial assets that do not meet the conditions to be classified in the two above categories. They are valued at fair value in the consolidated statement of financial position and any changes in value are recorded directly in profit or loss 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 to cash and are subject to insignificant risk of changes in value. g.3) Impairment of financial assets Under IFRS 9, the Group applies an impairment model based on expected credit losses, based on the Group's past history, existing market conditions, and prospective estimates at the end of each reporting period. The new impairment model is applied to financial assets measured at amortized cost and those measured at fair value through other comprehensive income, except for investments in equity instruments. The expected credit loss, determined considering Probability of Default (PD), Loss Given Default (LGD) and Exposure at Default (EAD), is the difference between all cash flows that are owed under the contract and all the cash flows that are expected to be received (that is, all cash deficiencies), discounted at the original effective interest rate. 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 date of issuance of the financial statements the credit risk has not increased significantly, the impairment losses are measured by reference 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 under the general approach is performed on an individual basis. · Simplified approach: the Group applies a simplified approach for trade receivables, contract assets and lease receivables so that the impairment provision is always recognized in reference to the lifetime expected credit losses for the asset. This is the Group’s most applied approach since trade receivables represent the main financial asset of Enel Chile and its subsidiaries. For trade accounts receivable, contractual assets and accounts receivable for lease, 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 client portfolios in terms of credit risk, maturity information and recovery rates. A specific definition of default is considered for each group. - Analytical or individual evaluation: if accounts receivable are considered individually significant by Management, and there is specific information on any significant increase in credit risk, the Group applies an individual evaluation of accounts receivable. For the individual evaluation, the PD is obtained mainly from an external provider. On the basis of the reference market and the regulatory context of the sector, as well as the recovery expectations after 90 days, for such accounts receivable, the Group mainly applies a default definition of 180 days of maturity to determine the 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 old are generally not considered in default. To measure the expected credit losses collectively, the Group considers the following assumptions: - PD: average default estimate, calculated for each group of trade accounts receivable, 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 the date of report, net of cash deposits, including invoices issued, but not due and invoices to be issued. Based on specific evaluations of 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 Financial liabilities, with general character, are recognized based on cash received, net of any costs incurred in the transaction. In subsequent periods, these obligations are measured at their amortized cost using the effective interest rate 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 variable 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 a variable interest rate, i.e., each coupon is established at the beginning of each period based on the reference 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, the positive fair value is recorded in “Trade and other receivables,” and negative fair values are recorded in “Trade and other liabilities”. Changes in fair value are recognized directly in profit or loss, except when the derivative has been designated for hedge accounting purposes as a hedge instrument (in a cash flow hedge) and all of the conditions for applying hedge accounting established by IFRS are met, including that the hedge be highly effective. In this case, changes are recognized as follows: · Fair value hedges: The underlying portion for which the risk is being hedged (hedged risk) and the hedge instrument are measured at fair value, and any changes in value of both items are recognized in the consolidated statement of comprehensive income by offsetting the effects in the same comprehensive income statement account. · 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 known as “Reserve for cash flow hedges”. The cumulative loss or gain in this reserve 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 account. Gains or losses from the ineffective portion of the hedge 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 the required criteria, after making any rebalancing of the hedging relationship, if applicable. If it is not possible to continue the hedging relationship, including when the hedging instrument expires, is sold, settled or exercised, any gain or loss accumulated in equity at that date remains in equity until the projected transaction affects the statement of comprehensive income. When a projected transaction is no longer expected to occur, the gain or loss accumulated in equity is immediately transferred to the income statement. As a general rule, long-term commodity purchases or sales agreements are recognized in the consolidated 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: (i) in the case of fuel purchase agreements such use is to generate electricity; (ii) in the case of electrical energy purchased for sale, its sale is to the end-customers; and (iii) in the case of 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 evidence that they are “own use” agreements, except in certain isolated cases when for exceptional reasons or reasons associated with logistical issues, they have been used for other purposes beyond the control and expectations of the Group. · The agreement does not stipulate net settlement and the parties have not made it a practice to net settle 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. Thus, the purpose of fuel purchase agreements is to use them to generate electricity, electricity purchase contracts are used to sell to end-customers, and electricity sale contracts are used to sell 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, if the contractual rights are retained, 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 ownership of the financial asset, or, if it has neither transferred nor retained substantially all the risks and rewards, when it does not retain control of the financial asset. Transactions in which the Group retains substantially all the inherent risks and rewards of ownership of the transferred asset, it continues recognizing the transferred asset in its entirety and recognizes 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, that is, 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 instead. g.7) Offsetting financial assets and 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 recognized amounts; and - the Company intends to settle them on a net basis, or to realize the asset and settle the liability simultaneously. The right of offset 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 of 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. Subsequently to initial recognition, financial guarantee contracts are recognized at the higher of: · the amount of the liability determined in accordance with the accounting policy in Note 3.m; and · the amount of the asset initially recognized less, if appropriate, any accumulate amortization recognized in accordance with the revenue recognition policies described in Note 3.q.
Measurement of fair value	h) Measurement of fair value 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 within 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 carried out 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 on 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 close 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 CVA and DVA adjustments are measured on the basis of the potential future exposure of the instrument (creditor or borrower 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, it is permitted to measure the fair value on a net basis. 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 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. Under the equity method, 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 its equity that the Group’s interest represents in its capital, adjusted for, if appropriate, the effect of transactions with the Group plus any goodwill generated in acquiring the associate or joint venture. 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 support the investee’s negative equity situation, in which case a provision is recognized. 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 equity method.” 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 this method.
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 estimated costs necessary to make the sale. The cost of inventories includes all costs of purchase and all necessary costs incurred in bringing the inventories to their present location and condition. Trade discounts, rebates and other similar items are deducted in determining the costs of purchase.
Non-current assets (or disposal group of assets) held for sale or held for distribution to owners and discontinued operations	k) Non-current assets (or disposal group 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, joint ventures, and disposal groups (a group of assets to be disposed of and the liabilities directly associated with those assets), are classified as: · Held for sale, if their carrying amount will be recovered principally 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 classification, the assets must be available for immediate sale or distribution in their present condition and its sale or distribution is highly probable. For this 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 will be made or that the plan will be withdrawn. 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. Non-current assets or disposal groups 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 depreciations, amortizations or revaluations that would have been recognized if they had not been classified as held for sale or held for distribution to owners and their recoverable amount at the date of subsequent decision where would be reclassified 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 called “Non-current assets or disposal groups held for sale or for distribution to owners,” and the respective liabilities are presented as a single line item within liabilities called “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: (i) represents a separate major lines of business or geographical area of operations; (ii) is a part of a single coordinated plan to dispose a separate major line of business or geographical area of operations; or (iii) is a subsidiary acquired exclusively with a view to resale. The components of profit or loss after taxes from discontinued operations and the post-tax gain or loss recognized on the measurement to fair value less costs to sell or on the disposal of the assets or groups constituting the discontinued operation are presented as a single line item in the consolidated comprehensive income statement as “Income after tax from discontinued operations”.
Treasury shares	l) Treasury shares Treasury shares are deducted from 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 “Equity – Retained earnings”, 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 cost expected to be incurred in resolving a legal claim is 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 they are 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 Some of the Group’s subsidiaries have pension and similar obligations to their employees. Such obligations, related to defined benefits plans, are basically formalized through pension plans, except for certain non-monetary benefits, mainly electricity supply commitments, which, due to their nature, have not been externalized and are covered by the related in-house provisions. For defined benefit plans, the cost of providing benefits is determined using the Projected Unit Credit Method, with actuarial valuations being carried out at the end of each reporting period. Past service costs relating to changes in benefits are recognized immediately. The defined benefit plan obligations in the statement of financial position represent the present value of the accrued obligations, adjusted, once the fair value of the different plans’ assets has been deducted, if any. Actuarial gains and losses arising in measurements of both the plan liabilities and the plan assets (if any, and excluding interest) are recognized directly in other comprehensive income.
Translation of foreign currency balances	n) Translation of foreign currency balances Transactions carried out 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 year, any differences that arise 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 exchange differences” in the consolidated statement of comprehensive income. Likewise, at the end of each reporting period, receivable or payable balances denominated in a currency other than each entity’s functional currency are translated using the closing exchange rate. Any differences are recorded as “Foreign currency exchange 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 reclassified to profit or loss when the hedged cash flows affect profit or loss. This term has been estimated at ten years. o
Current/non-current classification	o ) Current/non-current classification In these consolidated statements of financial position, assets and liabilities expected to be recovered or settled within twelve months are presented as current items, 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 credit 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 permitted deductions 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 apply 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 make use of 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 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 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 reverse in the foreseeable future. Current tax and changes in deferred tax assets or liabilities are recorded in profit or loss or in equity, 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 exists uncertainty about their tax realization, in which case they are not recognized until they are effectively realized, or when they correspond to specific tax incentives, in which case they are recorded as government grants. At the end of each reporting period, the Group reviews the deferred taxes 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 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 taxation 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 it 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 of the 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, Enel Chile 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 stipulated in the electricity market by the current regulations, or at the marginal cost of energy and power, depending on whether they are unregulated, 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 respective contracts or at prices stipulated in the electricity market by applicable regulations, as appropriate. This revenue includes an estimate of the service provided and not invoiced at the balance sheet date (ee Notes 2.3 and 28 and Appendix 2.2). · Sale and Transportation of Gas: Revenue is recognized over time, based on the actual physical deliveries of gas in the period of consumption, 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 (performance completed to date, milestones reached, etc.), or resource methods (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 have been transferred to the customer, which generally occurs at the time of the physical delivery of the goods. 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 obligation 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 to two or more transactions jointly, when these are linked to contracts with customers that are negotiated with a single commercial purpose and the goods and services committed represent a single performance obligation and their selling prices are not independent. Enel Chile 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 solution provided by IFRS 15, and will not adjust the value of the consideration committed for the purpose of a significant financing component, if the Company 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 figure. The Group only records as revenue the payment or commission to which it expects to be entitled. Given that the Company mainly recognizes revenue for the amount to which it has the right to invoice, it has decided to apply the practical disclosure solution provided in IFRS 15, through which it is not required to disclose the aggregate amount of the transaction price allocated to the obligations of performance not met (or partially not met) 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 solution, the incremental costs of obtaining a contract can be 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, 2019 and 2018, the Group has not incurred costs to obtain or fulfill a contract which meet the conditions for such capitalization. The costs incurred to gain a contract are substantially commission payments for sales that, although they are incremental costs, are related to short-term contracts or performance obligations that are met at a certain point; therefore, the Group has decided to recognize these costs as an expense when they occur. Interest revenue (expenses) is (are) recorded considering the effective interest rate applicable to the principal with pending amortization, during the corresponding 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 outstanding during the period, excluding the average number of shares of the Parent 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 Parent Company (the numerator) by the weighted average number of ordinary shares outstanding (the denominator) during the year, excluding the average number of shares of the Parent Company held by other subsidiaries within the Group, if any. Diluted EPS is calculated by dividing net income 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 that would be issued on conversion of all the dilutive potential ordinary shares into ordinary shares, if any. s
Dividends	s ) Dividends Article No. 79 of the Chilean Corporations Act Law No. 18,046; 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 to the shares owned or the proportion established in the company’s by-laws if there are preferred shares, of at least 30% of net income for each period, except when accumulated losses from prior years must be absorbed. As it is practically impossible to achieve a unanimous agreement given the Company’s highly fragmented share capital, 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 fiscal year, and then accounted for in “Trade and other current payables” and “Accounts payable to related companies”, as appropriate, and recognized in equity. Interim and final dividends are deducted from equity as soon as they are approved by the competent body, which in the first case is normally the Company’s Board of Directors and in the second case is the shareholders as agreed at an Ordinary 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 share issuance and brokerage expenses exceed the balance, they are recognized in “Other reserves". Subsequently, these costs must be deducted from the paid-in capital, and this deduction that must be approved at the Extraordinary Shareholders Meeting that takes place immediately after the date on which the costs were incurred.
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 expressions and corresponding 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 and other activities 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, 2019
BASIS OF PRESENTATION OF THE CONSOLIDATED FINANCIAL STATEMENTS
Disclosure Of Proportion Of Net Assets Market Value Explanatory	ThCh$ Minimum future payments of operating leases as of 12-31-2018 Effect of the discount at the incremental borrowing rate Minimum payments for short-term leases, at the transition date Lease liabilities
Schedule of subsidiaries	Percentage of control at 12-31-2019 Percentage of control at 12-31-2018 Taxpayer ID No. Company Currency Direct Indirect Total Direct Indirect Total 76.722.488-5 Empresa de Trasmisión Chena S.A. Chilean Peso — 100.00% — 96.783.910-8 Empresa Eléctrica de Colina Ltda. Chilean Peso — — 96.504.980-0 Empresa Eléctrica Pehuenche S.A. Chilean Peso — — 96.800.570-7 Enel Distribución Chile S.A. Chilean Peso — — 91.081.000-6 Enel Generación Chile S.A. Chilean Peso — — 78.932.860-9 GasAtacama Chile S.A. * Chilean Peso — — — 2.63% 78.952.420-3 Gasoducto Atacama Argentina S.A.* Chilean Peso — — — — 96.800.460-3 Luz Andes Ltda. Chilean Peso — — 77.047.280-6 Sociedad Agrícola de Cameros Ltda. Chilean Peso — — 96.920.110-0 Enel Green Power Chile Ltda.** American Dollar — — 96.524.140-K Empresa Eléctrica Panguipulli S.A.** American Dollar 76.306.985-0 Diego de Almagro Matriz SpA** American Dollar — — 76.179.024-2 Parque Eólico Tal Tal SpA** American Dollar 96.971.330-6 Geotérmica del Norte S.A.** American Dollar 99.577.350-3 Empresa Nacional de Geotermia S.A.** American Dollar — — 76.052.206-6 Parque Eólico Valle de los Vientos SpA** American Dollar 76.126.507-5 Parque Talinay Oriente S.A.** American Dollar — — 76.321.458-3 Almeyda Solar SpA** American Dollar — — 76.412.562-2 Enel Green Power del Sur SpA** American Dollar — — 76.924.079-9 Enel X Chile SpA*** Chilean Peso — —
Schedule of investment in associates	Ownership Interest at Ownership Interest at Taxpayer ID No. Company Currency Direct Indirect Total Direct Indirect Total 76.418.940-K GNL Chile S.A. American Dollar — 33.33% 33.33% — 33.33% 33.33% 76.364.085-K Energia Marina SpA Chilean peso — 25.00% 25.00% — 25.00% 25.00%
Schedule of Associates and Joint Venture	Ownership Interest at Ownership Interest at Taxpayer ID No. Company Currency Direct Indirect Total Direct Indirect Total 76.091.595-5 Aysén Energía S.A. (1) Chilean peso — — — — 51.00% 51.00% 76.041.891-9 Aysén Transmisión S.A. (1) Chilean peso — — — — 51.00% 51.00% 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chilean peso — 50.00% 50.00% — 50.00% 50.00%

Accounting Policies (Tables)

Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
ACCOUNTING POLICIES.
Summary of Estimated Useful Lives of Property, Plant and Equipment	The following table are the main categories of property, plant and equipment with their respective estimated useful lives: Categories of Property, plant and equipment Years of estimated Buildings 10 – 60 Plant and equipment 6 – 65 IT equipment 3 – 15 Fixtures and fittings 2 – 35 Motor vehicles 5 – 10 Additionally, the following table sets forth more details on the useful lives of plant and equipment items: Categories of Property, plant and equipment Years of estimated Generating facilities: Hydroelectric plants Civil engineering works 10 – 65 Electromechanical equipment 10 – 45 Fuel oil/coal-fired power plants 20 – 40 Combined cycle power plants 10 – 25 Renewable energy power plants 20 Transmission and distribution facilities: 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 transport facilities Pipelines 20

Business Combinations Under C_2

Business Combinations Under Common Control (Tables)	12 Months Ended
	Dec. 31, 2019
BUSINESS COMBINATIONS UNDER COMMON CONTROL
Summary of Carrying amount of the assets and liabilities of EGPL at merger date	Carrying amount of the assets and liabilities of EGPL at the merger date: 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 current receivables 27,414,273 Current accounts 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 non-current receivables 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 accounts payable 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

Argentina's Hyperinflationary_2

Argentina's Hyperinflationary Economy (Tables)	12 Months Ended
	Dec. 31, 2019
ARGENTINA’S HYPERINFLATIONARY ECONOMY
Hyperinflationary general price index	General price index From January 2015 to December 2017 85.52% From January to December 2018 47.83% From January to December 2019 53.64%
Effects of hyperinflation on Consolidated Statements of Financial Position and Comprehensive Income	As of December 31, Result due to Hyperinflation 2019 2018 ThCh$ ThCh$ Intangible assets other than goodwill Property, plant and equipment Equity Other Services Provision Other Variable Provisioning and Services Employee benefits expenses Other Fixed Operating Expenses Financial income Financial costs Result due to Hyperinflation *

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2019
CASH AND CASH EQUIVALENTS.
Summary of Cash and Cash Equivalents	a) The detail of cash and cash equivalents as of December 31, 2019 and 2018, is as follows: As of December 31, 2019 2018 Cash and Cash Equivalents ThCh$ ThCh$ Cash balances 31,416 44,326 Bank balances 24,960,269 98,395,997 Time deposits 14,600,772 5,782,252 Other fixed-income instruments 196,092,043 140,949,349 Total 235,684,500 245,171,924
Summary of Cash and Cash Equivalents by Currency	a) The detail of cash and cash equivalents by currency is as follows: As of December 31, 2019 2018 Currency ThCh$ ThCh$ Chilean peso 209,818,277 222,434,412 Argentine peso 7,096,519 6,057,793 Euros 654,319 103,847 U.S. dollar 18,115,385 16,575,872 Total 235,684,500 245,171,924
Summary of Cash and Cash Equivalents Received from Sale of Shares of Subsidiaries and Associates	a) The following tables sets forth cash and cash equivalents that have been received from the sale of shares of associates during the years ended December 31, 2019, 2018 and 2017: 2019 2018 2017 (*) Loss of control at Associates ThCh$ ThCh$ ThCh$ Amounts received for the sale of Associates (*) — — 115,582,806 Total — — 115,582,806 (*) See Note 5.
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$ Bank loans (Note 21.1) 512,547,718 — (284,022,562) (16,242,086) (300,264,648) — — 24,797,525 15,926,293 — (4,462,601) 248,544,287 Unsecured obligations (Note 21.2) 1,505,282,083 — (31,300,902) (80,892,559) (112,193,461) — — 99,245,420 85,089,982 — (134,121) 1,577,289,903 Leases (Note 21.4) 14,476,450 — (4,498,202) (641,609) (5,139,811) — — 4,437,227 1,815,169 37,818,654 — 53,407,689 Financial derivatives for hedging (Note 9 and 23) 40,611,925 1,791,715 (33,584,639) (5,805,822) (37,598,746) — 46,396,434 (32,145,989) 398,636 — (1,418,539) 16,243,721 Loans to related parties (Note 12.1.b) 447,317,781 283,831,505 — (30,847,678) 252,983,827 — — 52,606,156 31,328,749 — (2,360,689) 781,875,824 Other obligations — — (1,744,199) — (1,744,199) — — — 1,744,199 — — — Total 2,520,235,957 285,623,220 (355,150,504) (134,429,754) (203,957,038) — 46,396,434 148,940,339 136,303,028 37,818,654 (8,375,950) 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$ Bank loans (Note 21.1) 122 940,414,450 (812,568,125) (22,902,945) 104,943,380 322,301,558 — 51,622,432 27,929,781 — 5,750,445 512,547,718 Unsecured obligations (Note 21.2) 763,579,584 625,368,154 (5,654,112) (59,362,432) 560,351,610 — — 128,056,234 64,400,703 — (11,106,048) 1,505,282,083 Finance leases (Note 21.4) 14,608,914 — (1,889,685) (739,070) (2,628,755) — — 1,757,221 739,070 — — 14,476,450 Other liabilities (Note 18.1) — — (1,303,692) (1,303,692) — 52,972 — 1,250,720 — Financial derivatives for hedging (Note 9 and 23) (29,478,642) — — (3,496,889) (3,496,889) (5,495,214) 48,389,489 32,202,403 3,569,025 — (5,078,247) 40,611,925 Loans to related parties (Note 12.1.b) — — — (30,039,555) (30,039,555) 398,462,271 — 51,063,262 29,906,460 — (2,074,657) 447,317,781 Other obligations — — (23,307,842) — (23,307,842) — — — 23,307,842 — — — Total 748,709,978 1,565,782,604 (844,723,456) (116,540,891) 604,518,257 715,268,615 48,389,489 264,754,524 149,852,881 — (11,257,787) 2,520,235,957 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$ Bank loans (Note 21.1) 4,274 — (4,156) (12,581) (16,737) — — — 12,585 — — 122 Unsecured obligations (Note 21.2) 802,306,160 — (5,530,327) (43,514,578) (49,044,905) — — (33,226,098) 43,544,427 — — 763,579,584 Finance leases (Note 21.4) 17,749,647 — (2,592,236) — (2,592,236) — — (1,359,668) 811,171 — — 14,608,914 Financial derivatives for hedging (Note 9 and 23) 23,640,892 — (3,543,399) — (3,543,399) — (25,059,561) (23,488,917) 3,473,938 — (4,501,595) (29,478,642) Loans to related parties (Note 12.1.b) — 150,000,000 (150,000,000) (289,800) (289,800) — — — 289,800 — — — Other obligations — — (1,305,389) — (1,305,389) — — — 1,305,389 — — — Total 843,700,973 150,000,000 (162,975,507) (43,816,959) (56,792,466) — (25,059,561) (58,074,683) 49,437,310 — (4,501,595) 748,709,978 (1) Balance corresponds to current and non-current portion. Other changes include interest accruals

Other Financial Assets (Tables)

Other Financial Assets (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER FINANCIAL ASSETS
Summary of Other Financial Assets	Current Non-current 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Other Financial Assets ThCh$ ThCh$ ThCh$ ThCh$ Financial assets at fair value with changes in results — 90,839 — — Financial assets at fair value with changes in other comprehensive income 127,854 269,031 2,349,223 2,352,894 Financial assets Financial assets measured at amortized cost 860,425 880,268 — 689,146 Hedging derivatives 322,316 39,022,012 4,871,397 4,191,543 Non-Hedging derivatives — 41,023 — 36,086 Total 1,310,595 40,303,173 7,220,620 7,269,669

Other Non-financial Assets an_2

Other Non-financial Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER NON-FINANCIAL ASSETS AND LIABILITIES
Schedule of other non-financial assets	Currrent Non-Current Other non-financial assets 12-31-2019 12-31-2018 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ VAT Tax Credit and Other Taxes Prepaid expenses - - Guarantee deposit - - PPM water rights - - Spare parts with consumption schedule over 12 months - - Other Total
Schedule of other non-financial liabilities	Currrent Non-Current Other non-financial liabilities 12-31-2019 12-31-2018 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ VAT and Other Taxes due 31,616,664 56,341,865 - Reimbursable financial contributions - - 1,302,759 226,653 Splices 9,283,177 10,456,081 - Transfer of networks 2,845,708 1,786,635 - Products and services 1,088,498 1,502,411 - Other 674,336 1,221,990 - Total

Trade and Other Receivables (Ta

Trade and Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2019
TRADE AND OTHER RECEIVABLES.
Summary of Trade and Other Receivables, Net	As of December 31, 2019 2018 Current Non-current Current Non-current Trade and Other Receivables, Gross ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, gross 566,919,977 313,574,385 527,649,947 60,527,843 Trade receivables, gross 500,040,783 191,966,929 457,053,617 2,046,845 Leasing accounts receivables, gross 13,158,795 117,873,340 6,791,579 55,651,630 Other receivables, gross 53,720,399 3,734,116 63,804,751 2,829,368 As of December 31, 2019 2018 Current Non-current Current Non-current Trade and Other Receivables, Net ThCh$ ThCh$ ThCh$ ThCh$ Trade and other receivables, net 511,455,330 313,574,385 478,170,067 60,527,843 Trade and other receivables, net 456,552,682 191,966,929 417,927,182 2,046,845 Leasing accounts receivables, net 11,121,878 117,873,340 6,101,812 55,651,630 Other receivables, net (1) 43,780,770 3,734,116 54,141,073 2,829,368 (1) The details of Other Receivables, net is as follows: As of December 31, 2019 2018 Other receivables, net Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Other receivables, net 43,780,770 3,734,116 54,141,073 2,829,368 Recoveries from insurance companies 2,011,406 — 18,805,057 — Accounts receivable from employees 10,017,453 3,308,861 9,237,209 2,426,697 Advances to suppliers and creditors 19,864,669 415,787 19,236,907 402,671 Others 11,887,242 9,468 6,861,900 —
Disclosure of maturity analysis of finance lease payments receivable [text block]	12-31-2019 12-31-2018 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 15,313,622 4,191,744 11,121,878 8,033,838 1,932,026 6,101,812 From one to two years 17,350,359 3,919,937 13,430,422 8,033,838 1,553,584 6,480,254 From two to three years 17,350,359 3,630,136 13,720,223 8,033,838 1,549,927 6,483,911 From three to four years 17,316,251 3,115,800 14,200,451 8,033,838 1,512,895 6,520,943 From four to five years 17,271,708 2,246,896 15,024,812 7,994,153 1,028,452 6,965,701 More than five years 65,391,395 3,893,963 61,497,432 31,901,489 2,700,668 29,200,821 Total 149,993,694 20,998,476 128,995,218 72,030,994 10,277,552 61,753,442
Summary of Balance of Past Due But Not Impaired Trade Receivables	Trade Receivables Past Due But Not Impaired (*) As of December 31, 2019 2018 ThCh$ ThCh$ Less than three months 43,661,270 37,711,262 Between three and six months 6,462,265 3,916,489 Between six and twelve months 5,162,189 5,312,988 More than twelve months 10,668,714 11,328,175 Total 65,954,438 58,268,914
Summary of Reconciliation of Changes in the Allowance for Impairment of Trade Receivables	Current and Non-current Trade Receivables allowance for credit loss ThCh$ Balance at December 31, 2017 43,874,059 Initial balance adjustment for IFRS 9 4,673,467 Amounts written off (3,863,702) Increase (decreases) for the year 4,783,072 Other movements 12,984 Balance at December 31, 2018 49,479,880 Increases (decreases) for the year (*) 10,047,000 Amounts written off (4,067,201) Foreign currency translation differences 4,968 Balance at December 31, 2019 55,464,647 (*) See Note 31 for impairment of financial assets.

Balances and Transactions Wit_2

Balances and Transactions With Related Parties (Tables)	12 Months Ended
	Dec. 31, 2019
BALANCES AND TRANSACTIONS WITH RELATED PARTIES
Summary of Receivables from and Accounts Payable to Related Parties	a) Receivables from related parties Current Non-current Taxpayer ID 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Number Company Country Relationship Currency Description of transaction Term of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent Euros Other services Less than 90 days 26,979 27,023 - - Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent Euros Other services Less than 90 days 146,061 - - - Foreign Enel Green Power Morocco Italy Common Immediate Parent Euros Other services Less than 90 days 94,340 - - - 76.418.940-K GNL Chile S.A. Chile Associate US$ Advance Gas Purchase Less than 90 days 31,025,024 14,666,414 34,407,142 - 76.418.940-K GNL Chile S.A. Chile Associate US$ Dividends Less than 90 days - 788,336 - - Foreign Endesa Generación Spain Common Immediate Parent Euros Other services Less than 90 days 45,069 41,820 - - Foreign Enel Italy SrL. Italy Common Immediate Parent Euros Other services Less than 90 days 403,854 295,892 - - Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Other services Less than 90 days 120,276 44,675 - - Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Gas sales Less than 90 days 16,880,527 18,565,698 - - Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Commodity derivatives Less than 90 days 2,962,387 3,671,446 - - Foreign Enel S.p.A. Italy Parent Euros Other services Less than 90 days 467,393 415,200 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent CH$ Other services Less than 90 days - 281,002 - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent R$ Other services Less than 90 days 705,954 - - - Foreign Enel Brasil S.A. Brazil Common Immediate Parent US$ Other services Less than 90 days - 173,300 - - Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent US$ Other services Less than 90 days 578,847 703,368 - - Foreign Codensa S.A. Colombia Common Immediate Parent $ Col Other services Less than 90 days - 427,882 - - Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 859,573 - - - Foreign Enel Generación Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 1,180,707 973,873 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent US$ Other services Less than 90 days - 107,071 - - 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CH$ Other services Less than 90 days 2,850,769 4,197,951 - - Foreign Enel Green Power Colombia SAS Colombia Common Immediate Parent US$ Other services Less than 90 days 489,301 419,032 - - Foreign Enel Generación Piura S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 60,670 89,545 - - Foreign Enel Green Power Spa IT Italy Common Immediate Parent Euros Other services Less than 90 days 1,399,057 2,405,958 - - Foreign Enel Green Power Spa IT Italy Common Immediate Parent US$ Other services Less than 90 days 1,509,373 - - - Foreign Sociedad Portuaria Central Cartagena S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 149,525 - - - Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent CH$ Other services Less than 90 days 603,171 354,283 - - Foreign Enel Green Power México México Common Immediate Parent US$ Other services More than 90 days - 98,519 - - Foreign Enel Green Power Peru Peru Common Immediate Parent US$ Other services Less than 90 days 1,765,939 1,959,124 - - Foreign Energía Nueva Energía Limpia Mexico S.R.L México Common Immediate Parent US$ Other services Less than 90 days 108,327 52,241 - - Foreign Proyectos y Soluciones Renovables S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days 60,717 29,054 - - Foreign Enel Generacion Costanera S.A. Argentina Common Immediate Parent US$ Other services Less than 90 days 34,771 32,264 - - Foreign Enel Generacion El Chocon S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 12,589 13,367 - - Foreign Enel Green Power Brazil Participacoes LTDA. Brazil Common Immediate Parent US$ Other services Less than 90 days - 52,215 - - Foreign Enel Green Power Brazil Participacoes LTDA. Brazil Common Immediate Parent R$ Other services Less than 90 days 127,879 23,329 - - Foreign Enel Finance International NV Holland Common Immediate Parent US$ Loan receivable Less than 90 days - 1,008,208 - - Foreign Enel Green Power Argentina Argentina Common Immediate Parent US$ Other services Less than 90 days 284,876 276,607 - - Foreign Energetica Monzon S.A.C. Peru Common Immediate Parent US$ Other services Less than 90 days 461,677 601,512 - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent US$ Other services Less than 90 days 385,716 466,281 - - Foreign Enel Green Power RSA (PTY) LTD South Africa Common Immediate Parent CH$ 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 57,761 - - Foreign Enel Green Power North America Inc United States Common Immediate Parent CH$ Other services Less than 90 days 7,381 - - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent CH$ Other services Less than 90 days - 23,077 - - Foreign Empresa Distribuidora Sur S.A. Argentina Common Immediate Parent US$ Other services Less than 90 days 1,305,475 464,846 - - 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CH$ Other services Less than 90 days 341,200 309,717 - - Foreign Enel X SLR Italy Common Immediate Parent Euros Other services Less than 90 days 26,954 14,233 - - Foreign Enel Global I&N S.R.L. Italy Common Immediate Parent CH$ Other services Less than 90 days - 10,365 - - Foreign Enel Produzione Italy Common Immediate Parent Euros Other services Less than 90 days 13,781 - - - Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Euros Technical services Less than 90 days 273,003 - - - Foreign Enel X North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 92,730 - - - Foreign Parque Amistad II SA de CV México Common Immediate Parent US$ Other services Less than 90 days 50,264 - - - Foreign Parque Amistad IV SA de CV México Common Immediate Parent US$ Other services Less than 90 days 17,590 - - - 76.091.595-5 Aysén Energía Chile Joint venture CH$ Other services Less than 90 days - 14,286 - - 76.041.891-9 Aysén Transmisión Chile Joint venture CH$ Other services Less than 90 days - 14,285 - - Total 68,182,133 54,171,060 34,407,142 - b) Accounts payable to related parties Current Non-current Taxpayer ID 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Number Company Country Relationship Currency Description of transaction Terms of transaction ThCh$ ThCh$ ThCh$ ThCh$ Foreign Endesa Spain Spain Common Immediate Parent Euros Other services Less than 90 days 159,940 159,940 — — Foreign Enel Brasil S.A. Brazil Common Immediate Parent US$ Other services Less than 90 days — 74,949 — — Foreign Enel Trading Argentina S.R.L. Argentina Common Immediate Parent US$ Other services Less than 90 days 86,189 77,624 — — Foreign Emgesa S.A. E.S.P. Colombia Common Immediate Parent $ Col Other services Less than 90 days 4,723 4,723 — — 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent CH$ Other services Less than 90 days 1,909,747 1,461,815 — — 94.271.000-3 Enel Américas S.A. Chile Common Immediate Parent US$ Other services Less than 90 days — 1,987 — — Foreign Enel Distribución Peru S.A. Peru Common Immediate Parent US$ Other services Less than 90 days 2,291 2,291 — — Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent Euros Other services Less than 90 days 57,324 — — — Foreign Enel Global Infrastructure and Network Italy Common Immediate Parent Euros Technical services Less than 90 days 1,984,129 1,235,525 — — 76.418.940-K GNL Chile S.A. Chile Associate US$ Gas Purchase Less than 90 days 4,980,936 5,935,652 2,497,660 — 76.418.940-K GNL Chile S.A. Chile Associate CH$ Other services Less than 90 days — 12,389 — — Foreign Endesa Generación Spain Common Immediate Parent Euros Other services Less than 90 days 216,522 702,702 — — Foreign Enel Iberia SRL Spain Common Immediate Parent CH$ Other services Less than 90 days — 35 — — Foreign Enel Iberia SRL Spain Common Immediate Parent Euros Other services Less than 90 days 883,576 820,642 — — Foreign E-Distribuzione Spa Italy Common Immediate Parent Euros Other services Less than 90 days 49,488 336,814 — — Foreign Enel Produzione IT Italy Common Immediate Parent Euros Other services Less than 90 days 6,043,110 7,482,038 — — Foreign Enel Energía Italy Common Immediate Parent Euros Other services Less than 90 days 452,289 452,289 — — 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Joint venture CH$ Tolls Less than 90 days 13,887 13,887 — — Foreign Enel Green Power Spain SL Spain Common Immediate Parent Euros Other services Less than 90 days 352,233 217,859 — — Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Other services Less than 90 days 1,099,133 2,258,059 — — Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Commodity derivatives Less than 90 days 9,295,836 9,849,260 — — Foreign Enel Global Trading S.p.A. IT Italy Common Immediate Parent Euros Technical services Less than 90 days 2,857,244 — — — Foreign Enel S.p.A. Italy Parent CH$ Dividends Less than 90 days 35,863,042 67,197,814 — — Foreign Enel S.p.A. Italy Parent Euros Dividends Less than 90 days 19,155,829 — — — Foreign Enel S.p.A. Italy Parent Euros Technical services Less than 90 days 6,982,284 2,825,084 — — Foreign Enel S.p.A. Italy Parent Euros Other services Less than 90 days 2,965,604 3,041,172 — — Foreign Enel Italy SrL IT Italy Common Immediate Parent Euros Technical services Less than 90 days 6,438,614 1,528,308 — — Foreign Enel Italy SrL IT Italy Common Immediate Parent Euros Other services Less than 90 days 9,115,709 10,658,407 — — Foreign Codensa S.A. Colombia Common Immediate Parent US$ Other services Less than 90 days 17,950 13,579 — — Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Euros Technical services Less than 90 days 3,017,847 2,199,811 — — Foreign Enel Global Thermal Generation S.r.l. Italy Common Immediate Parent Euros Other services Less than 90 days 681,544 — — — Foreign Enel Green Power Spa IT Italy Common Immediate Parent US$ Other services Less than 90 days 6,328,568 — — — Foreign Enel Green Power Spa IT Italy Common Immediate Parent Euros Technical services Less than 90 days 19,758,903 13,743,624 — — Foreign Enel Green Power Spa IT Italy Common Immediate Parent Euros Other services Less than 90 days 8,514,576 16,609,801 — — Foreign Enel Green Power North America Inc United States Common Immediate Parent US$ Other services Less than 90 days 248,051 149,591 — — Foreign Enel Finance International NV (*) Holland Common Immediate Parent US$ Loan Less than 90 days — 123,979 781,875,824 447,193,802 Foreign Enel Finance International NV Holland Common Immediate Parent US$ Other services Less than 90 days 134,278 — — — 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent CH$ Other services Less than 90 days 344,877 370,028 — — 76.802.924-3 Energía y Servicios South America Spa Chile Common Immediate Parent US$ Other services Less than 90 days 107,037 — — — 76.364.085-K Energía Marina S.P.A Chile Common Immediate Parent CH$ Other services Less than 90 days 2,357 — — — Foreign Enel X S.R.L. Italy Common Immediate Parent Euros Other services Less than 90 days 198,815 40,656 — — Foreign Enel X S.R.L. Italy Common Immediate Parent Euros Technical services Less than 90 days 147,488 — — — Foreign Cesi S.p.A. Italy Common Immediate Parent Euros Other services Less than 90 days 890,343 458,228 — — Foreign Tecnatom SA Italy Common Immediate Parent Euros Other services Less than 90 days 29,093 102,962 — — Foreign Enel Green Power Spa GLO Italy Common Immediate Parent Euros Other services Less than 90 days 8,418,481 7,772,801 — — Total 159,809,887 157,936,325 784,373,484 447,193,802 (*)See section d) below.
Summary of Significant Transactions and Effect on Income or Expenses	For the years ended December 31, 2019 2018 2017 Taxpayer ID No. Company Relationship Country Description of transaction ThCh$ ThCh$ ThCh$ Foreign Endesa Energía S.A. Common Immediate Parent Spain Gas sales - - 10,394,146 94.271.000-3 Enel Américas S.A. Common Immediate Parent Chile Other services rendered 4,748,244 5,071,453 4,737,522 76.418.940-K GNL Chile S.A. Associate Chile Fuel consumption ( 99,801,403 ) ( 131,521,989 ) ( 194,163,392 ) 96.524.140-K Empresa Eléctrica Panguipulli S.A. Common Immediate Parent Chile Energy purchase - ( 1,954,523 ) ( 11,758,824 ) 76.321.458-3 Sociedad Almeyda Solar Spa Common Immediate Parent Chile Energy purchase - ( 1,052,840 ) ( 4,306,145 ) 76.052.206-6 Parque Eolico Valle de los Vientos SpA Common Immediate Parent Chile Energy purchase - ( 3,349,525 ) ( 16,630,422 ) Foreign Enel S.p.A. Parent Italy Technical services ( 4,110,257 ) - - Foreign Enel Italy Servizi Common Immediate Parent Italy Other fixed operating expenses - - ( 2,230,668 ) 76.412.562-2 Enel Green Power del Sur SPA Common Immediate Parent Chile Energy purchase - ( 30,205,373 ) ( 104,865,684 ) 76.179.024-2 Parque Eolico Tal Tal SpA Common Immediate Parent Chile Energy purchase - ( 4,448,833 ) ( 25,959,608 ) Foreign Enel Global Trading S.p.A. Common Immediate Parent Italy Commodity derivatives ( 12,118,800 ) 7,584,772 18,311,343 Foreign Enel Global Trading S.p.A. Common Immediate Parent Italy Technical services ( 1,634,832 ) ( 1,213,116 ) - Foreign Enel Global Trading S.p.A. Common Immediate Parent Italy Gas sales 58,352,346 34,701,425 21,484,590 Foreign Enel Finance International NV Common Immediate Parent Holland Financial expense ( 31,328,749 ) ( 23,253,535 ) - Foreign Enel Italy Servizi Common Immediate Parent Italy Other fixed operating expenses - - ( 2,230,668 ) Foreign Enel Italy IT Common Immediate Parent Italy Other fixed operating expenses - ( 4,111,525 ) - Foreign Enel Italy IT Common Immediate Parent Italy Other services rendered ( 3,089,599 ) - - Foreign Enel Italy S.R.L. GLO Common Immediate Parent Italy Technical services ( 2,750,306 ) - - Foreign Enel Global Thermal Generation S.r.l. Common Immediate Parent Italy Other fixed operating expenses - ( 1,845,425 ) - Foreign Enel Green Power Spa IT Common Immediate Parent Italy Technical services - ( 4,257,363 ) - Foreign Enel Green Power Spa GLO Common Immediate Parent Italy Technical services ( 3,898,762 ) - -
Summary of Compensation Paid to Members of the Board of Directors	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 Herman Chadwick Piñera Chairman January - December 2018 181,789 — — Foreign Giulio Fazio Director January - December 2018 — — — 4.461.192-9 Fernan 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 Foreign Daniele Caprini Director April - December 2018 — — — Foreign Salvatore Bernabei Director January - December 2018 — — — Total 454,471 — 93,054 December 31, 2017 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 2016 178,065 — — Foreigner Giulio Fazio Director January - December 2016 — — — 4.461.192-9 Fernán Gazmuri Plaza Director January - December 2016 89,032 — 28,504 4.774.797-K Pedro Pablo Cabrera Gaete Director January - December 2016 89,032 — 28,504 5.672.444-3 Juan Gerardo Jofré Miranda Director January - December 2016 89,032 — 28,504 Foreigner Vicenzo Ranieri Director January - December 2016 — — — Foreigner Salvatore Bernabei Director January - December 2016 — — — Total 445,161 — 85,512
Disclosure Of Compensation Of Key Management Personnel Explanatory	Key Management Personnel Taxpayer ID No. Name Position Foreign Paolo Palloti (1) Chief Executive Officer Foreign Giuseppe Turchiarelli (2) Administration, Finance and Control Officer 13.903.626-3 Liliana Schnaidt Hagedorn (3) Human Resources and Organization Manager 6.973.465-0 Domingo Valdés Prieto General Counsel and Secretary to the Board Foreign Raffaele Cutrignelli Internal Audit Officer (1) (2) (3)
Summary of Compensation Received by Key Management Personnel	December 31, 2019 December 31, 2018 December 31, 2017 ThCh$ ThCh$ ThCh$ Cash compensation 2,357,252 2,959,019 2,959,467 Short-term benefits for employees 207,391 497,424 557,122 Other long-term benefits 2,088 322,865 183,453 Total 2,566,731 3,779,308 3,700,042

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2019
INVENTORIES.
Summary of Classes of Inventories	As of December 31, 2019 2018 Classes of Inventories ThCh$ ThCh$ Supplies for Production 18,352,465 35,786,830 Gas 2,287,934 7,115,226 Oil 3,888,712 2,684,688 Coal 12,175,819 25,986,916 Supplies for projects and spare parts 18,073,825 12,951,779 Electrical materials 3,245,960 8,223,034 Total 39,672,250 56,961,643

Current Tax Assets and Liabil_2

Current Tax Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
CURRENT TAX ASSETS AND LIABILITIES
Summary of Current Tax Assets and Liabilities	The detail of current tax assets and liabilities as of December 31, 2019 and 2018, is as follows: As of December 31, 2019 2018 Tax Receivables ThCh$ ThCh$ Monthly provisional tax payments 38,896,220 52,950,410 Tax credit for absorbed profits 85,708,128 46,343,265 Tax credit for training expenses 2,668,941 470,142 Total 127,273,289 99,763,817 The details of accounts payable associated with current taxes as of December 31, 2019 and 2018 are as follows: As of December 31, 2019 2018 Tax Payables ThCh$ ThCh$ Income tax 17,995,833 17,677,920 Total 17,995,833 17,677,920

Investments Accounted for Usi_2

Investments Accounted for Using the Equity Method (Tables)	12 Months Ended
	Dec. 31, 2019
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 following tables present the changes in investments in associates and joint ventures accounted for using the equity method as of December 31, 2019 and 2018: Share of Foreign Other Balance as Balance as of Profit Dividends Currency Increase of Taxpayer ID Ownership 1-1-2019 Additions (Loss) Declared Translation (Decrease) 12-31-2019 Number Associates and Joint Ventures Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ 76.418.940-K GNL Chile S.A. Chile U.S. dollar 3,052,983 — (254,132) (1,518,880) 130,235 — 1,410,206 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Chilean peso 9,473,711 — 695,437 (4,069,920) — — 6,099,228 76.014.570-K Enel Argentina S.A. Argentina Angentine peso 300,198 — 104,335 — (95,726) 93,101 401,908 76.364.085-K Energía Marina SpA. Chile Chilean peso 46,639 131,647 (179,551) — — 18,511 17,246 TOTAL 12,873,531 131,647 366,089 (5,588,800) 34,509 111,612 7,928,588 Share of Foreign Other Other Balance as Balance as of Profit Dividends Currency Comprehensive Increase of Taxpayer ID Ownership 1-1-2018 Additions (Loss) Declared Translation Income (Decrease) 12-31-2018 Number Associates and Joint Ventures Country Currency Interest ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ 76.418.940-K GNL Chile S.A. Chile U.S. dollar 3,783,316 — 805,972 (1,884,140) 347,835 — — 3,052,983 76.652.400-1 Centrales Hidroeléctricas De Aysén S.A. (*) Chile Chilean peso — 4,205,233 — 1,734,508 — — — (5,939,741) — 77.017.930-0 Transmisora Eléctrica de Quillota Ltda. Chile Chilean peso 8,818,759 — 654,952 — — — — 9,473,711 Foreign Enel Argentina S.A. Argentina Argentine peso 105,146 — 86,021 — (108,069) — 217,100 300,198 76.364.085-K Energía Marina SpA Chile Chilean peso — (91,213) 137,852 46,639 TOTAL 16,912,454 — 3,190,240 (1,884,140) 239,766 — (5,584,789) 12,873,531 (*)
Individual balance sheet considered for the liquidation process	CENTRALES HIDROELECTRICAS DE AYSEN S.A. Liquidation Balance Recognized by Enel Generación (51%) 09-07-18 09-07-18 ASSETS ThCh$ ThCh$ CURRENT ASSETS Cash and cash equivalents Current accounts receivable from related parties TOTAL CURRENT ASSETS NON-CURRENT ASSETS Property, plant and equipment TOTAL NON-CURRENT ASSETS TOTAL ASSETS 09-07-18 09-07-18 CURRENT LIABILITIES ThCh$ ThCh$ Other current provisions TOTAL CURRENT LIABILITIES EQUITY Issued capital Retained earnings TOTAL EQUITY TOTAL LIABILITIES AND EQUITY
Summary of Financial Information from Financial Statements of Main Joint Ventures	The following tables present information from the statement of financial position and statement of income as of and for the year ended December 31, 2019 and 2018, on the main joint ventures: Centrales Hidroeléctricas Transmisora Eléctrica de Aysén S.A. (*) de Quillota Ltda. (—)% (—)% 50.0% 50.0% 12-31-2019 12-31-2018 12-31-2019 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ Total current assets — — 3,346,667 9,360,553 Total non-current assets — — 10,834,220 11,530,788 Total current liabilities — — 365,640 235,264 Total non-current liabilities — — 1,616,791 1,708,660 Cash and cash equivalents — — 2,403,904 8,185,391 Revenues — — 3,191,566 3,003,757 Other fixed operating expenses — (125,182) (768,866) (758,607) Depreciation and amortization expense — — (782,800) (784,364) Other Income — 3,526,179 6,087 — Interest income — — 152,370 187,601 Income tax expense — — (407,478) (349,848) Profit (loss) — 3,400,997 1,390,879 1,309,903 Other comprehensive income — — — — Comprehensive income — 3,400,997 1,390,879 1,309,903
Summary of Financial Information from Financial Statements of Investments in Associates	As of December 31, 2019 % Ownership Current Assets Non-current Assets Current Liabilities Non-current Liabilities 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) As of December 31, 2018 % 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 75,571,058 267,884 66,679,077 — 707,597,382 (705,179,062) 2,418,157 1,043,609 3,461,766

Intangible Assets Other than _2

Intangible Assets Other than Goodwill (Tables)	12 Months Ended
	Dec. 31, 2019
INTANGIBLE ASSETS OTHER THAN GOODWILL.
Summary of Intangible Assets	As of December 31, 2019 2018 Intangible Assets, Net ThCh$ ThCh$ Intangible Assets, Net 132,278,593 115,372,393 Easements and water rights 17,352,892 17,736,954 Concessions 26,156,419 25,953,878 Patents, Registered Trademarks and Other Rights 316,970 7,394 Computer software 76,162,800 60,067,635 Other identifiable intangible assets 12,289,512 11,606,532 2019 2018 Intangible Assets, Gross ThCh$ ThCh$ Intangible Assets, Gross 229,944,365 202,377,094 Easements and water rights 22,553,618 22,011,401 Concessions 34,718,676 32,055,825 Patents, Registered Trademarks and Other Rights 771,002 12,484 Computer software 156,836,017 133,931,876 Other identifiable intangible assets 15,065,052 14,365,508 2019 2018 Intangible Assets, Amortization and Impairment ThCh$ ThCh$ Accumulated Amortization and Impairment, Total (97,665,772) (87,004,701) Easements and water rights (5,200,726) (4,274,447) Concessions (8,562,257) (6,101,947) Patents, Registered Trademarks and Other Rights (454,032) (5,090) Computer software (80,673,217) (73,864,241) Other identifiable intangible assets (2,775,540) (2,758,976)
Summary of Reconciliations of the Carrying Amounts of Intangible Assets	Easements Concessions Patents, Registered Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance 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 (decreases) other than from business combinations — — — 25,208,199 — 25,208,199 Increase (decrease) from exchange differences, net 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 December 31, 2019 17,352,892 26,156,419 316,970 76,162,800 12,289,512 132,278,593 Easements Concessions Patents, Computer Other Identifiable Intangible Assets Intangibles Assets, Changes in Intangible Assets ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance January 1, 2018 12,608,950 — — 38,254,793 4,307,161 55,170,904 Changes in identifiable intangible assets Increases (decreases) other than from business combinations 2,721 — 12,484 25,759,609 — 25,774,814 Acquisitions made through business combination — 30,077,961 — 2,113,933 9,594,267 41,786,161 Increase (decrease) from exchange differences, net 769,421 2,033,761 — 4,111,021 — 6,914,203 Amortization (1) (347,397) (4,109,453) (5,090) (7,750,745) (2,723) (12,215,408) Increases (decreases) from transfers and other changes 5,213,240 (2,048,391) — (866,790) (2,298,059) — Increases (decreases) from transfers 5,213,240 (2,048,391) — (866,790) (2,298,059) — Disposals and removal from service (509,981) — — — — (509,981) Removals from service (509,981) — — — — (509,981) Argentina Hyperinflation Effect — — — — 180 180 Increase (decrease) — — — (1,554,186) 5,706 (1,548,480) Total changes in identifiable intangible assets 5,128,004 25,953,878 7,394 21,812,842 7,299,371 60,201,489 Closing balance December 31, 2018 17,736,954 25,953,878 7,394 60,067,635 11,606,532 115,372,393 (1) See Note 31.

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2019
GOODWILL.
Summary of Goodwill by the Cash-Generating Unit or Group of Cash-Generating Units	Opening Balance Business Foreign Closing Balance 12/31/2018 Transfer absortion Foreign currency difference Closing Company Cash Generating Unit ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Empresa Eléctrica de Colina Ltda. Empresa Eléctrica de Colina Ltda. 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. Enel Generación Chile 731,782,459 — — 731,782,459 24,860,356 — 756,642,815 GasAtacama Chile S.A. Enel Generación Chile 24,860,356 — — 24,860,356 (24,860,356) — — Empresa Eléctrica Panguipulli S.A. Enel Green Power Chile Ltda. — 17,543,347 2,603,476 20,146,823 — 1,673,580 21,820,403 Geotérmica del Norte Enel Green Power Chile Ltda. — 65,871 9,775 75,646 — 6,284 81,930 Parque Eólico Talinay Oriente Enel Green Power Chile Ltda. — 6,587,064 977,537 7,564,601 — 628,385 8,192,986 Total 887,257,655 24,196,282 3,590,788 915,044,725 — 2,308,249 917,352,974

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
PROPERTY, PLANT AND EQUIPMENT
Summary of Property Plant and Equipment	The following table shows property, plant and equipment as of December 31, 2019 and 2018: As of December 31, 2019 2018 Classes of Property, Plant and Equipment, Net ThCh$ ThCh$ Property, Plant and Equipment, Net 5,360,319,624 5,308,647,633 Construction in progress 1,048,988,931 862,274,093 Land 77,754,923 74,753,283 Buildings 420,319,759 384,027,047 Plant and equipment 2,895,992,861 3,143,869,929 Network infrastructure 809,428,974 764,095,247 Fixtures and fittings 47,758,908 55,091,617 Other property, plant and equipment under lease 4,231,758 6,881,745 Right-of-use assets 55,843,510 17,654,672 As of December 31, 2019 2018 Classes of Property, Plant and Equipment, Gross ThCh$ ThCh$ Property, Plant and Equipment, Gross 9,296,027,122 8,747,182,818 Construction in progress 1,048,988,931 862,274,093 Land 77,754,923 74,753,283 Buildings 531,250,194 470,833,768 Plant and equipment 6,002,160,751 5,824,130,347 Network infrastructure 1,396,996,724 1,318,208,218 Fixtures and fittings 150,242,089 151,363,603 Other property, plant and equipment under lease 18,259,978 16,859,475 Right-of-use assets 70,373,532 28,760,031 As of December 31, 2019 2018 Classes of Accumulated Depreciation and Impairment in Property, Plant and Equipment ThCh$ ThCh$ Total Accumulated Depreciation and Impairment in (3,935,707,498) (3,438,535,185) Buildings ( 110,930,435 ) (86,806,721) Plant and equipment ( 3,106,167,890 ) (2,680,260,418) Network infrastructure ( 587,567,750 ) (554,112,971) Fixtures and fittings ( 102,483,181 ) (96,271,986) Other property, plant and equipment under lease ( 14,028,220 ) (9,977,730) Right-of-use assets ( 14,530,022 ) ( 11,105,359 )
Summary of Changes in Property Plant and Equipment	The detail and changes in property, plant, and equipment at December 31, 2019 and 2018, are as follows: Construction Land Buildings Generation Network Fixtures and Other Property, Right of use Property, Plant and Changes in 2019 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance 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 17,654,672 5,308,647,633 Changes: - - - - Effects first application IFRS 16 - - - - - - - 28,814,142 28,814,142 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 1,537,867 127,073,449 Depreciation (1) - - ( 17,944,173 ) ( 159,163,293 ) ( 34,964,877 ) ( 6,299,395 ) ( 3,011,561 ) ( 3,321,268 ) ( 224,704,567 ) 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) for transfers (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 from service — - (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) - 11,158,097 83,996,486 Argentina Hyperinflationary Effect (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) 38,188,838 51,671,991 Closing balance 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 55,843,510 5,360,319,624 Construction Land Buildings Generation Network Fixtures and Other Property, Finance Lease Asset Property, Plant and Changes in 2018 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Opening balance January 1, 2018 666,590,543 67,485,380 12,793,641 2,080,903,064 683,120,815 56,284,762 — 18,508,932 3,585,687,137 Changes: Increases other than from business combinations 321,183,398 5,893,739 1,000,411 1,638,436 2,455 935,982 143,120 — 330,797,541 Acquisitions through business combinations 44,088,988 623,052 329,152,208 941,871,560 47,727,579 2,018,760 6,904,334 368,008 1,372,754,489 Increases (decreases) from exchange differences, net 14,849,366 50,004 46,040,633 128,411,179 6,928,376 338,619 982,330 22,471 197,622,978 Depreciation (1) — — (13,795,237) (149,247,118) (32,011,964) (4,935,435) (2,105,472) (857,075) (202,952,301) Increases (decreases) from transfers and other changes (193,895,804) — 12,450,092 146,447,942 32,105,004 2,692,671 222,027 (21,932) — Increases (decreases) for transfers (193,895,804) — 12,450,092 146,447,942 32,105,004 2,692,671 222,027 (21,932) — Disposals and removals from service — (5,411) — (90,513) (1,132,103) (1) - — (1,228,028) Disposals — — — (90,513) (436,956) — - — (527,469) Removals from service — (5,411) — — (695,147) (1) - — (700,559) Other increases (decreases) 9,457,602 706,519 (3,614,701) (7,977,450) 27,355,085 (2,243,741) 735,406 (365,732) 24,052,988 Argentina Hyperinflationary Effect — — — 1,912,829 — — - — 1,912,829 Total changes 195,683,550 7,267,903 371,233,406 1,062,966,865 80,974,432 (1,193,145) 6,881,745 (854,260) 1,722,960,496 Closing balance December 31, 2018 862,274,093 74,753,283 384,027,047 3,143,869,929 764,095,247 55,091,617 6,881,745 17,654,672 5,308,647,633 (1) See Note 31. (2) See paragraph x) in section e) Other information, of this Note. (3) See Note 25.
Summary of changes in right of use assets	The detail of the right-of-use assets as of December 31, 2019 corresponds to the following: Land Other Plants Right-of-use assets, Net Changes in 2019 ThCh$ ThCh$ ThCh$ Opening balance January 1, 2019 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 January 1, 2019 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 December 31, 2019 34,081,799 21,761,711 55,843,510
Disclosure of maturity analysis of finance lease payments receivable [text block]	As of December 31, 2019 2018 Gross Interest Present Value Gross Interest Present Value ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Less than one year 7,602,720 1,760,705 5,842,015 2,779,080 612,805 2,166,275 From one to two years 6,234,867 1,719,045 4,515,822 2,779,080 471,998 2,307,082 From two to three years 6,049,847 1,484,321 4,565,526 2,779,080 322,037 2,457,043 From three to four years 8,326,858 1,265,224 7,061,634 7,726,436 180,386 7,546,050 From four to five years 2,964,375 1,180,435 1,783,940 — — — More than five years 38,630,310 8,991,558 29,638,752 — — — Total 69,808,977 16,401,288 53,407,689 16,063,676 1,587,226 14,476,450
Schedule of Total Future Lease Payments	As of December 31, 2019, the future payments derived from such contracts are as follows: As of December 31, 2019 ThCh$ Less than one year 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 3,485,151

Investment Property (Tables)

Investment Property (Tables)	12 Months Ended
	Dec. 31, 2019
INVESTMENT PROPERTY.
Summary of Changes in Investment Property	Investment Gross Accumulated Investment Investment Properties ThCh$ ThCh$ ThCh$ Balance at January 1, 2018 9,189,377 (832,605) 8,356,772 Depreciation expense — (19,591) (19,591) Other increases (decreases) — (779,825) (779,825) Balance at December 31, 2018 9,189,377 (1,632,021) 7,557,356 Depreciation expense — (19,812) (19,812) Impairment (*) — (742,389) (742,389) Balance at December 31, 2019 9,189,377 (2,394,222) 6,795,155 (*) See Note 31.
Schedule of fair value hierarchy of investment properties	Fair value measured at the end of the reporting period using: Level 1 Level 2 Level 3 ThCh$ ThCh$ ThCh$ Investment properties — — 7,880,432 See Note 3.h.
Summary of Income and Expenses from Investment Properties	For the years ended December 31, 2019 2018 2017 Income and expense from investment properties ThCh$ ThCh$ ThCh$ Rental income from investment properties 202,896 204,166 192,719 Direct operating expense from investment properties generating rental income (44,136) (56,327) (78,367) Total 158,760 147,839 114,352

Income Tax and Deferred Taxes (

Income Tax and Deferred Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
INCOME TAX AND DEFERRED TAXES
Components of Income Tax Expense Benefit	The following table presents the components of the income tax expense / (benefit) for the years ended December 31, 2019, 2018 and 2017: For the years ended December 31, 2019 2018 2017 Current Income Tax and Adjustments to Current Income Tax for Previous Periods ThCh$ ThCh$ ThCh$ Current income tax (54,904,679) (47,354,780) (162,820,181) Adjustments to current tax from the previous period (2,251,167) (6,304,285) (1,127,646) Other current tax benefit / (expense) (37,369,930) (61,507,252) 15,934,106 Current tax expense, net (94,525,776) (115,166,317) (148,013,721) Benefit / (expense) from deferred taxes for origination and reversal of temporary differences 33,297,872 (43,134,500) 4,671,420 Adjustments to deferred taxes from the previous period — 4,818,298 — Total deferred tax benefit / (expense) 33,297,872 (38,316,202) 4,671,420 Income tax expense (61,227,904) (153,482,519) (143,342,301)
Summary of Reconciliation of Tax Expense	The following table reconciles income taxes resulting from applying the local current tax rate to “Net income before taxes” and the actual income tax expense recorded in the accompanying Consolidated Statement of Comprehensive Income for the years ended December 31, 2019, 2018 and 2017: 12-31-2019 12-31-2018 12-31-2017 Reconciliation of Tax Expense Rate ThCh$ Rate ThCh$ Rate ThCh$ ACCOUNTING INCOME BEFORE TAX 377,321,122 566,330,276 666,760,212 Total tax income (expense) using statutory rate (101,876,703) (152,909,175) (170,023,854) Tax effect of rates applied in other countries 232,897 — — 328,968 Tax effect of non-taxable operations 42,638,986 1,746,052 37,774,743 Tax effect of non-tax-deductible expenses (10,399,776) (12,786,965) (20,737,858) Tax effect of adjustments to taxes in previous periods (2,251,167) (6,304,285) (1,127,646) Adjustments for prior periods deferred taxes — — 4,818,298 — — Price level restatement for tax purposes (investments and equity) 10,427,859 11,953,556 10,443,346 Total adjustments to tax expense using statutory rate 40,648,799 (0.10)% (573,344) 26,681,553 Income tax benefit (expense) (61,227,904) (153,482,519) (143,342,301)
Summary of Origination and Changes in Deferred Tax Assets and Liabilities	The origination and changes in deferred tax assets and liabilities as of December 31, 2019 and 2018, are as follows: December 31, 2019 December 31, 2018 Assets Liabilities Assets Liabilities Deferred Tax Assets (Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ Accumulated depreciation 10,652,313 (404,453,928) 9,636,857 (359,613,258) Post-employment benefit obligations 7,772,646 (34,413) 6,131,110 (421,462) Revaluations of financial instruments 456,888 — — — Tax loss 81,154,636 — 36,921,157 — Provisions 87,275,541 — 55,080,385 — Dismantling Provision 44,485,711 — 23,627,264 — Provision for Civil Contingencies 3,502,161 — 4,108,710 — Provision Contingencies Workers 492,522 — 430,900 — Provision for doubtful trade accounts 14,555,712 — 13,253,612 — Provision of Human Resources accounts 7,859,341 — 7,432,939 — Other Provisions 16,380,094 — 6,226,960 — Other Deferred Taxes 20,980,774 (31,240,859) 14,277,897 (20,921,510) Capitalization of financial expenses — (11,412,737) — (11,202,063) Argentina Hyperinflationary Effect — (657,871) — (425,687) Other Deferred Taxes 20,980,774 (19,170,251) 14,277,897 (9,293,760) Deferred Tax Assets/Liabilities before compensation 208,292,798 (435,729,200) 122,047,406 (380,956,230) Compensation of Assets (Liabilities) for deferred taxes (186,444,559) 186,444,559 (102,876,176) 102,876,176 Deferred Tax Assets (Liabilities) after compensation 21,848,239 (249,284,641) 19,171,230 (278,080,054) Changes 2019 Opening balance Increase Increase (decrease) comprehensive Foreign Other increases Closing balance Deferred Tax Assets (Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Accumulated depreciation (349,976,401) (5,668,543) — (1,561,204) (36,595,467) (393,801,615) Post-employment benefit obligations 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 financial expenses (11,202,063) (407,318) — 196,643 (11,412,738) Argentina Hyperinflation Effect (425,687) (207,916) — (24,268) (657,871) Other Deferred Taxes 4,984,137 988,848 992 — (4,163,453) 1,810,524 Deferred Tax Assets (Liabilities) (258,908,824) 33,297,873 2,811,360 1,330,258 (5,967,069) (227,436,402) Changes 2018 Opening balance Effects first IFRS 9 and Net balance restated as of January 1, 2018 Increase (decrease) in Increase (decrease) income Acquisitions Business Combinations Foreign currency Other increases (decreases) Closing balance Deferred Tax Assets (Liabilities) ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Accumulated depreciation (263,685,283) — (263,685,283) (3,851,978) — (74,336,810) (10,342,994) 2,240,664 (349,976,401) Post-employment benefit obligations 5,971,995 — 5,971,995 (250,223) (10,228) — — (1,896) 5,709,648 Tax loss carryforwards 9,536,102 — 9,536,102 (3,278,563) 32,058,724 2,831,404 (4,226,510) 36,921,157 Provisions 39,890,472 1,261,836 41,152,308 4,032,271 — 5,183,782 973,961 3,738,063 55,080,385 Dismantling Provision 17,411,395 — 17,411,395 4,442,928 — 1,707,519 59,520 5,902 23,627,264 Provision for Civil Contingencies 3,762,772 — 3,762,772 306,893 — — 39,045 — 4,108,710 Provision Contingencies Workers 5,989 — 5,989 333,704 — 8,016 83,191 — 430,900 Provision for doubtful trade accounts 11,976,401 1,261,836 13,238,237 13,646 — 3,434 989 (2,694) 13,253,612 Provision of Human Resources accounts 6,497,206 — 6,497,206 178,162 — 70,795 686,776 — 7,432,939 Other Provisions 236,709 236,709 (1,243,062) — 3,394,018 104,440 3,734,855 6,226,960 Other Deferred Taxes 38,900,825 (213,442) 38,687,383 (34,967,709) 111 — — (10,363,398) (6,643,613) Capitalization of financial expenses (4,780,923) — (4,780,923) (6,421,139) — — — (1) (11,202,063) Recoverable taxes 10,491,314 — 10,491,314 — — — — (10,491,314) — Investments accounted for using the equity method - Hidroaysen 30,938,736 — 30,938,736 (30,938,736) — — — — — Argentina Hyperinflation Effect — (213,442) (213,442) (212,245) — — — — (425,687) Other Deferred Taxes 2,251,698 — 2,251,698 2,604,411 111 — — 127,917 4,984,137 Deferred Tax Assets (Liabilities) (169,385,889) 1,048,394 (168,337,495) (38,316,202) (10,117) (37,094,304) (6,537,629) (8,613,077) (258,908,824)
Effects of Deferred Tax on Components of Other Comprehensive Income	The effects of deferred tax on the components of other comprehensive income for the years ended December 31, 2019 and 2018, are as follows: For the years ended December 31, 2019 2018 2017 Effects of Deferred Tax on the Components of Amount Before Income Tax Amount After Amount Before Income Tax Amount After AmountBefore Income Tax Amount After Other Comprehensive Income ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Available-for-sale financial assets (3,673) 992 (2,681) (411) 111 (300) 1,840 (497) 1,343 Cash flow hedge (139,174,121) 36,883,401 (102,290,720) (221,906,855) 60,650,786 (161,256,069) 97,558,961 (25,701,599) 71,857,362 Share of other comprehensive income from associates and joint ventures accounted for using the equity method — — — — — — (1,490) — (1,490) Foreign currency translation 73,114,966 — 73,114,966 107,492,316 — 107,492,316 (3,686,549) — (3,686,549) Actuarial gains(losses) on defined-benefit pension plans (7,777,204) 2,099,845 (5,677,359) 37,881 (10,228) 27,653 1,716,875 (463,556) 1,253,319 Income tax related to components of other comprehensive income (73,840,032) 38,984,238 (34,855,794) (114,377,069) 60,640,669 (53,736,400) 95,589,637 (26,165,652) 69,423,985
Movements in Deferred Taxes for Components of Other Comprehensive Income	The following table presents deferred taxes between the balance sheet and income taxes in other comprehensive income as of December 31, 2019 and 2018. For the years ended December 31, 2019 2018 2017 Deferred taxes of components of other comprehensive income ThCh$ ThCh$ ThCh$ Total increases (decreases) for deferred taxes of other comprehensive income from continuing operations 2,811,360 (10,117) (464,053) Income tax of changes in cash flow hedge transactions 36,172,878 60,650,786 (25,701,599) Total income tax relating to components of other comprehensive income 38,984,238 60,640,669 (26,165,652)

Other Financial Liabilities (Ta

Other Financial Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER FINANCIAL LIABILITIES
Schedule of Balances of Other Financial Liabilities	The balances of other financial liabilities as of December 31, 2019 and 2018, are as follows: As of December 31, 2019 2018 Current Non-current Current Non-current Other financial liabilities ThCh$ ThCh$ ThCh$ ThCh$ Interest –bearing borrowings 164,404,334 1,714,837,545 329,262,093 1,703,044,158 Hedging derivatives (*) 48,225,766 25,208,326 81,195,765 2,629,715 Non-hedging derivatives (**) 2,026,476 124,048 207,957 159,630 Total 214,656,576 1,740,169,919 410,665,815 1,705,833,503 (*) 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, 2019 and 2018, is as follows: As of December 31, Current Non-current Current Non-current Classes of Interest-bearing borrowings ThCh$ ThCh$ ThCh$ ThCh$ Bank loans 113,247,263 135,297,019 70,790,775 229,020,029 Unsecured obligations 5 — 212,736,914 — Unsecured Obligations with the public 45,315,051 1,531,974,852 43,568,129 1,461,713,954 Leases obligations 5,842,015 47,565,674 2,166,275 12,310,175 Total 164,404,334 1,714,837,545 329,262,093 1,703,044,158
Summary of Bank Loans by Currency and Maturity	Bank loans by currency and contractual maturity as of December 31, 2019 and 2018, are as follows: Summary of bank loans by currency and maturity Current Non-current Maturity Maturity Country Currency Effective Interest Nominal Secured / One to three Three to twelve Total Current One to two Two to three Three to four Four to five years Over five years Total Non-Current Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 3.31% 3.31% Unsecured 134,532 113,112,731 113,247,263 112,747,516 22,549,503 - - - 135,297,019 Chile Ch$ 6.00% 6.00% Unsecured 5 - 5 - - - - - - Total 134,537 113,112,731 113,247,268 112,747,516 22,549,503 - - - 135,297,019 Current Non-current Maturity Maturity Country Currency Effective Nominal Secured / Unsecured One to three Three to twelve Total Current One to two years Two to three Three to four Four to five Over five years Total Non-Current Rate Rate ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 3.51% 3.51% Unsecured 1,350,861 69,439,914 70,790,775 — 104,100,014 124,920,015 — — 229,020,029 Chile Ch$ 4.71% 4.30% Unsecured 6 212,736,908 212,736,914 — — — — Total 1,350,867 282,176,822 283,527,689 — 104,100,014 124,920,015 — — 229,020,029
Summary of Identification of Bank Borrowings by Company	December 31, 2019 Current Non-current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Amortization Less than More Total One to Two to Three to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 1 — 1 — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-k Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 4 — 4 — — — — 76.536.353-5 Enel Chile S.A. Chile 97.036.000-k Banco Santander - Chile Chile Ch$ 3.85% 3.17% At maturity — — 0 — — — — 76.536.353-5 Enel Chile S.A. Chile 97.004.000-5 Banco de Chile Chile Ch$ 3.85% 3.17% At maturity — — 0 — — — — 76.536.353-5 Enel Chile S.A. Chile 97.018.000-1 Scotiabank Chile Chile Ch$ 3.85% 3.17% At maturity — — 0 — — — — 96.920.110-0 Enel Green Power Chile Ltda. Chile 97.018.000-1 Scotiabank Chile Chile US$ 4.14% 4.14% At maturity — — 0 — — — — 96.920.110-0 Enel Green Power Chile Ltda. Chile 97.018.000-1 Scotiabank Chile Chile US$ 4.17% 4.17% At maturity 134,532 112,747,516 112,882,048 — — — — 96.920.110-0 Enel Green Power Chile Ltda. Chile Foreign Inter-American Development Bank (BID) U.S. US$ 1.50% 1.50% At maturity 43,220 43,220 — 22,549,503 — 22,549,503 96.524.140-K Empresa Eléctrica Panguipulli S.A. Chile 97.018.000-1 Scotiabank Chile Chile US$ 4.25% 4.25% At maturity 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 December 31, 2018 Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Amortization Less than More Total One to Two to Three to Total Non- 96.800.570-7 Enel Distribución Chile S.A. Chile 97.006.000-6 Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 2 — 2 — — — — 91.081.000-6 Enel Generación Chile S.A. Chile 97.036.000-K Banco Santander (Overdraft line) Chile Ch$ 6.00% 6.00% At maturity 4 — 4 — — — — 76.536.353-5 Enel Chile S.A Chile 97.036.000-K Banco Santander Chile Ch$ 3.85% 3.17% At maturity — 65,829,996 65,829,996 — — — — 76.536.353-5 Enel Chile S.A Chile 97.004.000-5 Banco de Chile Chile Ch$ 3.85% 3.17% At maturity — 73,453,456 73,453,456 — — — — 76.536.353-5 Enel Chile S.A Chile 97.018.001-1 Scotiabank Chile Chile Ch$ 3.85% 3.17% At maturity — 73,453,456 73,453,456 — — — — 96.920.110-0 Enel Green Power Chile Ltda Chile 97.080.000-K BBVA Chile US$ 4.14% 4.14% At maturity 814,628 69,400,009 70,214,637 — — — — 96.920.110-0 Enel Green Power Chile Ltda Chile 97.080.000-K BBVA Chile US$ 4.17% 4.17% At maturity 158,913 — 158,913 — 104,100,014 — 104,100,014 96.920.110-0 Enel Green Power Chile Ltda Chile 59.054.440-K INTER-AMERICAN INVESTIMENT CORPORATION U.S. US$ 1.50% 1.50% At maturity — 39,905 39,905 — — 20,820,002 20,820,002 95.524.140-K Empresa Electrica Panguipulli S.A Chile 97.080.000-K BBVA Chile US$ 4.25% 4.25% At maturity 377,320 — 377,320 — — 104,100,013 104,100,013 Total 1,350,867 282,176,822 283,527,689 — 104,100,014 124,920,015 229,020,029
Summary of Unsecured Liabilities by Currency and Maturity	The detail of Unsecured Liabilities by currency and maturity as of December 31, 2019 and 2018, is as follows: Summary of public unsecured liabilities by currency and maturity Current Non-Current Maturity Maturity Effective Interest Nominal Annual Secured/ One to three Three to Twelve 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 Unsecured ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.59% 6.49% Unsecured 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% Unsecured — 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 Current Non-Current Maturity Maturity Effective Interest Nominal Annual Secured/ One to three Three to Twelve 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 Unsecured ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 6.59% 6.49% Unsecured 7,144,997 4,281,038 11,426,035 — — — — 1,164,595,519 1,164,595,519 Chile U.F. 6.00% 5.48% Unsecured — 32,142,094 32,142,094 30,793,493 30,793,493 30,793,493 30,793,493 173,944,463 297,118,435 Total 7,144,997 36,423,132 43,568,129 30,793,493 30,793,493 30,793,493 30,793,493 1,338,539,982 1,461,713,954
Summary of Unsecured Liabilities by Company	Summary of public unsecured liabilities by currency and maturity December 31, 2019 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Secured 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 Foreign BNY Mellon - Primera Emisión S-1 U.S. US$ 7.96% 7.88% 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 U.S. US$ 7.40% 7.33% 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 U.S. US$ 8.26% 8.13% 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 U.S. US$ 4.32% 4.25% 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% 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% 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 U.S. US$ 5.03% 4.88% 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 December 31, 2018 Current Non-Current Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Effective Nominal Secured 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 Foreign BNY Mellon - Primera Emisión S-1 U.S. US$ 7.96% 7.88% No 4,693,498 — 4,693,498 — — — — 142,300,747 142,300,747 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-2 U.S. US$ 7.40% 7.33% No 1,500,880 — 1,500,880 — — — — 48,131,124 48,131,124 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Primera Emisión S-3 U.S. US$ 8.26% 8.13% No 950,619 — 950,619 — — — — 22,694,249 22,694,249 91.081.000-6 Enel Generación Chile S.A. Chile Foreign BNY Mellon - Unica 24296 U.S. US$ 4.32% 4.25% No — 2,493,452 2,493,452 — — — — 274,469,150 274,469,150 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% No — 6,513,162 6,513,162 5,733,684 5,733,684 5,733,684 5,733,684 25,386,928 48,321,664 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% No — 25,628,932 25,628,932 25,059,809 25,059,809 25,059,809 25,059,809 148,557,535 248,796,771 76.536.353-5 Enel Chile S.A. Chile Foreign BNY Mellon - Unica U.S. US$ 5.03% 4.88% No — 1,787,586 1,787,586 — — — — 677,000,249 677,000,249 Total Unsecured Bonds 7,144,997 36,423,132 43,568,129 30,793,493 30,793,493 30,793,493 30,793,493 1,338,539,982 1,461,713,954
Summary of Detail of Finance Lease Obligations	December 31, 2019 Current Non-Current ThCh$ Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Nominal 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% 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% 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% 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% 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% 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% 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% 6,607 — 6,607 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 96.643.660-3 Inmobiliaria El Roble S.A. Chile UF 1.41% 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% 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% 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% 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% 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% 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% 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% 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% 10,501 — 10,501 — — — — — — 96.800.570-7 Enel Distribución Chile S.A. Chile 76.253.641-2 Bcycle Latam S.P.A Chile Ch$ 6.24% — 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% 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% — 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% 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% 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% 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% 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% 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% 988 3,231 4,219 2,736 — — — — 2,736 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 76,055 — 76,055 43,584 44,691 45,827 46,991 1,156,664 1,337,757 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 117,630 117,630 42,842 43,930 45,047 46,191 1,066,692 1,244,702 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 29,696 — 29,696 16,622 17,044 17,477 17,921 439,871 508,935 96.920.110-0 Enel Green Power Chile Ltda. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 29,189 29,189 19,513 20,009 20,517 21,038 548,843 629,920 96.524.140-k Empresa Eléctrica Panguipulli S.A. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile EUR 5.02% — 260,072 260,072 167,261 175,655 184,471 193,729 2,532,578 3,253,694 96.524.140-k Empresa Eléctrica Panguipulli S.A. Chile 76.259.106-5 Inmobiliaria Terra Australis Tres S.A. Chile UF 6.39% — 46,597 46,597 54,543 55,929 57,350 58,807 1,012,677 1,239,306 96.524.140-k Empresa Eléctrica Panguipulli S.A. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 6.39% — 98,189 98,189 70,885 72,686 74,533 76,427 1,881,835 2,176,366 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 36,519 36,519 27,274 27,967 28,677 29,406 723,912 837,236 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 26,329 26,329 19,661 20,161 20,673 21,198 521,858 603,551 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 30,727 30,727 22,949 23,532 24,130 24,743 609,121 704,475 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 27,615 27,615 20,619 21,143 21,680 22,231 547,270 632,943 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 3,738 3,738 2,793 2,864 2,937 3,011 74,129 85,734 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 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 del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 31,087 — 31,087 18,256 18,720 19,195 19,683 517,037 592,891 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 29,105 — 29,105 17,619 18,066 18,525 18,996 467,606 540,812 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% 628 — 628 383 393 403 413 10,169 11,761 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.54% — 1,331 1,331 683 700 718 736 20,591 23,428 76.412.562-2 Enel Green Power del Sur SPA. Chile 76.400.311-K Fundo Los Buenos Aires Spa Chile UF 2.54% — 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 del Sur SPA. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4.94% 7,914 — 7,914 2,949 3,095 3,248 3,408 99,995 112,695 76.412.562-2 Enel Green Power del Sur SPA. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4.94% 15,877 — 15,877 6,496 6,817 7,154 7,507 185,500 213,474 76.412.562-2 Enel Green Power del Sur SPA. Chile 3.750.132-8 Juan Rioseco Garcia Chile UF 4.94% 3,961 — 3,961 1,474 1,547 1,624 1,704 49,994 56,343 76.412.562-2 Enel Green Power del Sur SPA. Chile 4.595.479-K Adriana Castro Parra Chile UF 4.94% 31,828 — 31,828 12,991 13,633 14,307 15,015 370,630 426,576 76.412.562-2 Enel Green Power del Sur SPA. Chile 7.256.021-3 Alicia Freire Hermosilla Chile UF 4.31% 93,160 — 93,160 88,809 — — — — 88,809 76.412.562-2 Enel Green Power del Sur SPA. Chile 77.378.630-5 Agricola Santa Amalia Chile UF 4.94% 31,828 — 31,828 12,991 13,633 14,307 15,015 370,631 426,577 76.412.562-2 Enel Green Power del Sur SPA. Chile 77.894.990-3 Orafti Chile S.A. Chile UF 4.94% 15,918 — 15,918 6,190 6,496 6,817 7,154 192,635 219,292 76.412.562-2 Enel Green Power del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 4.87% — 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 del Sur SPA. Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 4.94% 41,389 — 41,389 13,058 13,704 14,381 15,092 520,042 576,277 76.412.562-2 Enel Green Power del Sur SPA. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4.94% 5,605 — 5,605 2,141 2,247 2,359 2,475 66,716 75,938 76.412.562-2 Enel Green Power del Sur SPA. Chile 78.201.750-0 Sociedad Agricola Parant Chile UF 4.94% 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 del Sur SPA. Chile 3.750.131-K Federico Rioseco Garcia Chile UF 4.94% 7,935 — 7,935 3,095 3,248 3,408 3,577 96,415 109,743 76.179.024-2 Parque Eólico Tal Tal SpA Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.36% 32,269 — 32,269 22,884 23,424 23,978 24,545 311,762 406,593 76.179.024-2 Parque Eólico Tal Tal SpA Chile 79.938.160-5 Soc. Serv. Com.. Multiservice F.L. Chile UF 2.94% — 35,334 35,334 35,034 36,064 37,124 38,215 981,212 1,127,649 76.052.206-6 Parque Eólico Valle de los Vientos SpA Chile 61.402.000-8 Ministerio De Bienes Nacionales Chile UF 2.23% 48,681 — 48,681 37,594 38,433 39,291 40,168 258,481 413,967 76.126.507-5 Parque Eólico Talinay Oriente S.A. Chile 76.248.317-3 Agricola Alto Talinay Chile EUR 4.61% — 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 UF 2.54% — 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 78.822.300-5 Inversiones Cardinal S.A Chile UF 1.20% 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% 9,714 19,465 29,179 — — — — — — Total Leasing 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 December 31, 2018 Current Non-Current ThCh$ Taxpayer ID Company Country Taxpayer ID Financial Institution Country Currency Nominal 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% 528,847 1,637,428 2,166,275 2,307,082 2,457,043 2,616,750 4,929,300 — 12,310,175 Total Leasing 528,847 1,637,428 2,166,275 2,307,082 2,457,043 2,616,750 4,929,300 — 12,310,175
Summary of Changes in Reserve for Cash Flow Hedges	The following table details changes in “Reserve for cash flow hedges” as of December 31, 2019 and 2018, due to exchange differences of this debt: For the years ended December 31, 2019 2018 2017 ThCh$ ThCh$ ThCh$ Balance in hedging reserves (hedging income) at the beginning of the period, net (127,508,852) (27,168,007) (52,747,645) Foreign currency exchange differences recognized in equity, net (77,347,380) (101,790,308) 17,321,594 Foreign currency exchange differences recognized in profit and loss, net 15,042,823 12,478,369 8,258,044 Others (Tender Offer 33.57% April 2, 2018 on Enel Generacion Chile) — (11,028,906) — Balance in hedging reserves (hedging income) at the end of the period, net (189,813,409) (127,508,852) (27,168,007)
Summary of estimation of undiscounted flows by bank loans	Non-Current Current Non-Current Total Current Maturity Total Non-Current Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate 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 One to Three Months Three to twelve months as of 12-31-2018 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$ 2,542,588 120,375,278 122,917,866 118,121,339 22,859,559 - - - 140,980,898 1,985,915 75,074,314 77,060,229 110,909,917 106,335,361 21,112,380 - - 238,357,658 Chile Ch$ 5 - 5 - - - - - - 1,798,705 215,920,510 217,719,215 - - - - - - Totals - - - - -
Summary of estimation of undiscounted flows by guaranteed and unsecured obligations	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 12-31-2019 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 One to Three Months Three to twelve months as of 12-31-2018 One to two years Two to Three Years Three to Four Years Four to Five Years More than Five Years as of 12-31-2018 ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Chile US$ 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 16,173,722 48,521,166 64,694,888 64,694,887 64,694,887 64,694,887 64,694,887 1,612,310,243 1,871,089,791 Chile U.F. 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 6,603,562 49,871,556 56,475,118 54,036,540 51,597,963 49,159,386 46,720,808 224,787,689 426,302,386 Totals
Summary of estimation of undiscounted flows by finance leases	Non-Current Current Non-Current Total Current Maturity Total Non-Current Total Current Maturity Total Non-Current Country Currency Nominal Interest Rate 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 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$ 859,011 2,802,479 3,661,490 3,570,048 3,554,711 5,731,772 258,317 2,063,704 15,178,552 760,090 2,278,842 3,038,932 3,034,977 3,030,765 3,026,279 5,044,764 - 14,136,785 Chile Euros 80,971 240,372 321,343 499,678 485,713 471,749 457,785 2,453,454 4,368,379 - - - - - - - - - Chile UF 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$ 1,180 23,113 24,293 17,847 16,967 16,087 15,207 - 66,108 - - - - - - - - - Totals -

Risk Management Policy (Tables)

Risk Management Policy (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 2018 % % Fixed interest rate 98% 71%

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018, is as follows: December 31, 2019 Financial assets at fair value through profit and loss 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 accounts receivable 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 accounts receivable 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 December 31, 2018 Financial assets at fair value through profit and loss Financial assets measured at amortized cost Financial assets at fair value with changes in other comprehensive income Financial ThCh$ ThCh$ ThCh$ ThCh$ Equity instruments 90,839 — 269,031 — Trade accounts receivable and other accounts receivable — 529,467,040 — — Derivative instruments 1,491,497 — 1,423,613 39,022,012 Other financial assets — 880,268 — — Total Current 1,582,336 530,347,308 1,692,644 39,022,012 Equity instruments — — 2,352,894 — Trade accounts receivable and other accounts receivable — 60,527,843 — — Derivative instruments 36,086 — — 4,191,543 Other financial assets — 689,146 — — Total Non-current 36,086 61,216,989 2,352,894 4,191,543 Total 1,618,422 591,564,297 4,045,538 43,213,555 The book value of trade accounts receivable and payable approximates their fair value.
Summary of Financial Liabilities Classified by Type and Category	a) The detail of financial liabilities, classified by type and category, as of December 31, 2019 and 2018, is as follows: December 31, 2019 Financial liabilities Loans and payables Financial Liabilities at fair value with changes in other result Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 164,404,334 — — Trade accounts payable and other accounts payable — 750,103,757 — — Derivative instruments 2,026,476 — 8,924,831 48,225,766 Total Current 2,026,476 914,508,091 8,924,831 48,225,766 Interest-bearing loans — 1,714,837,545 — — Trade accounts payable and other accounts payable — 840,623,569 — — Derivative instruments 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 December 31, 2018 Financial liabilities Loans and payables Financial Liabilities at fair value with changes in other result Financial derivatives ThCh$ ThCh$ ThCh$ ThCh$ Interest-bearing loans — 329,262,093 — — Trade accounts payable and other accounts payable — 702,770,048 — — Derivative instruments 756,005 — 7,161,949 81,195,765 Total Current 756,005 1,032,032,141 — 81,195,765 Interest-bearing loans — 1,703,044,158 — — Trade accounts payable and other accounts payable — 449,777,982 — — Derivative instruments 159,630 — — 2,629,715 Total Non-current 159,630 2,152,822,140 — 2,629,715 Total 915,635 3,184,854,281 — 83,825,480
Summary of Financial Derivative Transactions Qualifying as Hedge Instruments Resulted in Recognition of Assets and Liabilities	As of December 31, 2019 and 2018, financial derivative transactions qualifying as hedge instruments resulted in recognition of the following assets and liabilities in the consolidated statement of financial position: December 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 December 31, 2018 Assets Liabilities Current Non-current Current Non-current ThCh$ ThCh$ ThCh$ ThCh$ Interest rate hedge: 852,119 4,191,543 Cash flow hedge 852,119 4,191,543 Exchange rate hedge: 38,169,893 — 81,195,765 2,629,715 Cash flow hedge 38,169,893 — 81,195,765 2,629,715 Total 39,022,012 4,191,543 81,195,765 2,629,715
Summary of Hedge Derivative Instruments and Their Corresponding Hedged Instruments	Hedge derivative instruments and their corresponding hedged instruments are shown in the following table: Fair value of Fair value of Detail of Description Description hedged item hedged item Type hedging of hedging of hedge 12-31-2019 12-31-2018 of instrument instrument item ThCh$ ThCh$ risk hedged SWAP Interest rate Others (699,158) — Cash flow SWAP Exchange rate Unsecured obligations (bonds) (9,530,240) (18,892,400) Cash flow SWAP Interest rate Loans with Related Companies (6,991,184) — Cash flow SWAP Interest rate Bank loans — 5,043,662 Cash flow SWAP Interest rate Bank loans 277,703 — Cash flow FORWARD Exchange rate Operational Income (51,297,500) (26,763,187) 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, 2019 and 2018, financial derivative transactions recorded at fair value through profit or loss, resulted in the recognition of the following assets and liabilities in the statement of financial position: December 31, 2019 December 31, 2018 Current Current Non-Current Non-Current Current Current Non-Current Non-Current ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Non-hedging derivative instrument — 2,026,476 — 124,048 41,023 207,957 36,086 159,630 Total — 2,026,476 — 124,048 41,023 207,957 36,086 159,630
Summary of Fair Value of Hedging and Non-hedging Derivatives Entered Into by the Group as Well as the Remaining Contractual Maturities	The following tables present 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, 2019 and 2018: December 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 December 31, 2018 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: 5,043,662 69,477,000 104,215,500 104,215,500 — — 277,908,000 Cash flow hedge 5,043,662 69,477,000 104,215,500 104,215,500 — — 277,908,000 Exchange rate hedge: (45,655,587) 1,227,557,071 76,355,223 — — — 1,303,912,294 Cash flow hedge (45,655,587) 1,227,557,071 76,355,223 — — — 1,303,912,294 Derivatives not designated for hedge accounting (290,478) 34,525,045 29,457,793 1,913,220 — — 65,896,058 Total (40,902,403) 1,331,559,116 210,028,516 106,128,720 — — 1,647,716,352
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, 2019 and 2018: 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 — Financial derivatives not designated for hedge accounting — — — — Commodity derivatives not designated as cash flow hedges 1,573,704 — 1,573,704 — Commodity derivatives designated as cash flow hedges 1,323,556 — 1,323,556 Available-for-sale financial assets, non-current 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 — Commodity derivatives not designated for hedge accounting — — — — Commodity derivatives designated as cash flow hedges 8,924,831 — 8,924,831 — Total 84,509,447 — 84,509,447 — Fair Value Measured at End of Reporting Period Using: 12-31-2018 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 43,213,555 — 43,213,555 — Financial derivatives not designated for hedge accounting 77,109 — 77,109 — Commodity derivatives not designated as cash flow hedges 1,450,474 — 1,450,474 — Commodity derivatives designated as cash flow hedges 1,423,613 — 1,423,613 Available-for-sale financial assets, non-current 359,870 — 359,870 — Total 46,524,621 — 46,524,621 — Financial Liabilities: Financial derivatives designated as cash flow hedges 83,825,480 — 83,825,480 — Financial derivatives not designated for hedge accounting 367,587 — 367,587 — Commodity derivatives not designated for hedge accounting 548,048 — 548,048 — Commodity derivatives designated as cash flow hedges 7,161,949 — 7,161,949 — Total 91,903,064 — 91,903,064 —

Trade and Other Current Payab_2

Trade and Other Current Payables (Tables)	12 Months Ended
	Dec. 31, 2019
TRADE AND OTHER CURRENT PAYABLES.
Summary of Trade and Other Current Payables	Current Non-current 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Trade and Other Payables ThCh$ ThCh$ ThCh$ ThCh$ Energy suppliers (1) 178,153,813 155,123,059 53,941,373 — Fuel and gas suppliers 55,179,023 39,787,839 — — Payables for goods and services 183,848,556 155,054,466 487 6,766 Payables for assets acquisition 100,307,602 116,157,897 2,281,051 2,106,099 Subtotal Trade Payables 517,488,994 466,123,261 56,222,911 2,112,865 Other Payables Dividends payable to third parties 41,582,444 52,059,048 — — Warranty deposits 360,863 365,857 — — Fines and complaints — 165,102 — — Taxes payables other than income tax 44,506 1,742,603 — — Accounts payable to staff 33,090,217 30,686,679 — — Other payables 6,696,184 3,143,774 27,174 471,315 Subtotal Other Payables 81,774,214 88,163,063 27,174 471,315 Total 599,263,208 554,286,324 56,250,085 2,584,180 (1) Corresponding to lags in payments for purchases of electric energy resulting from the methodology for calculating the “Stabilized Price to Regulated Customer” according to Law No 21,185 (see Note 11).

Provisions (Tables)

Provisions (Tables)	12 Months Ended
	Dec. 31, 2019
PROVISIONS
Summary of Breakdown of Provisions	a) The breakdown of provisions as of December 31, 2019 and 2018, is as follows: Current Non-current 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Provisions ThCh$ ThCh$ ThCh$ ThCh$ Provision for legal proceedings 2,320,885 3,884,018 11,210,305 13,468,858 Decommissioning or restoration (1) — — 160,649,977 92,402,517 Other provisions 1,745,080 1,704,768 — — Total 4,065,965 5,588,786 171,860,282 105,871,375 (1) See Note 3.a
Summary of Changes in Provisions	Changes in provisions as of December 31, 2019 and 2018, are as follows: Legal Decommissioning or Environment Total Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance at 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 at December 31, 2019 13,531,190 160,649,977 1,745,080 175,926,247 Legal Decommissioning or Environment Total Provisions ThCh$ ThCh$ ThCh$ ThCh$ Balance at January 1, 2018 17,433,976 64,486,647 2,138,385 84,059,008 Increase (decrease) in existing provisions (1) 1,842,257 23,395,295 (253,939) 24,983,613 Provisions used (1,150,386) — (501,234) (1,651,620) Reversal of unused provision (743,927) — — (743,927) Increase from adjustment to time value of money (2) — 3,176,001 — 3,176,001 Foreign currency translation (29,044) 1,344,574 321,556 1,637,086 Total changes in provisions (81,100) 27,915,870 (433,617) 27,401,153 Balance at December 31, 2018 17,352,876 92,402,517 1,704,768 111,460,161 (1) The variation experienced by the dismantling or restoration provisions during the year ended December 31, 2019, is mainly due to the increase in disbursements expected from the early closure of the Tarapacá and Bocamina I plants, which is part of the Group's agreement with the Ministry of Energy for the progressive closure of coal- fired power plants (see Note 18.e.x); and to a lesser extent due to an increase in the present value of the provisions, for a low discount rates applied. (2) Corresponding to financial update, see Note 34

Employee Benefit Obligations (T

Employee Benefit Obligations (Tables)	12 Months Ended
	Dec. 31, 2019
EMPLOYEE BENEFIT OBLIGATIONS
Summary of Post- employment Obligations Associated with Defined Benefits Plan	a) The post-employment obligations associated with the defined benefits plan as of December 31, 2019 and 2018, are as follows: 12-31-2019 12-31-2018 ThCh$ ThCh$ Compensation for years of services 42,697,317 33,839,498 Supplementary Pension 17,853,600 16,993,409 Health Plans 3,090,670 2,979,630 Energy Supply Plans 2,521,903 2,790,127 Total post-employment obligations, net 66,163,490 56,602,664
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, 2019 and 2018: For the years ended December 31, Expense Recognized in the Statement of 2019 2018 2017 Comprehensive Income ThCh$ ThCh$ ThCh$ Current service cost for defined benefits plan 1,928,868 1,920,262 2,091,205 Interest cost for defined benefits plan (1) 2,639,738 2,750,376 2,678,300 Past service cost 1,224,527 (39,060) — Expenses recognized in the Statement of Income 5,793,133 4,631,578 4,769,505 Gains (losses) from remeasurement of defined benefit plans 7,777,204 (37,881) (1,716,875) Total expense recognized in the Statement of Comprehensive Income 13,570,337 4,593,697 3,052,630 (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 and for the years ended December 31, 2019 and 2018, are as follows: Actuarial Value of Post-employment Obligations ThCh$ Balance at January 1, 2018 57,081,924 Current service cost 1,920,262 Net Interest cost 2,750,376 Actuarial (gains) losses from changes in financial assumptions 789,809 Actuarial (gains) losses from changes in experience adjustments (827,690) Foreign currency translation 124,929 Benefits paid (5,469,357) Past service (39,060) Defined benefit plan obligations from business combinations 602,816 Transfers of employees (331,345) Balance at December 31, 2018 56,602,664 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 1,224,527 Benefits paid (4,068,988) Transfer of employees 49,691 Closing balance December 31, 2019 66,163,490
Summary of Assumptions Used in Actuarial Calculation of Defined Benefits	As of December 31, 2019 and 2018, the following assumptions were used in the actuarial calculation of defined benefits: 12-31-2019 12-31-2018 Discount rates used 3.40% 4.70% Expected rate of salary increases 3.80% 3.80% Turnover rate 5.24% 4.40% Mortality tables CB-H-2014 / RV-M-2014 CB-H-2014 / RV-M-2014
Summary of Expected Flow for Benefits for Next Ten Years	The Group’s obligations have a weighted average length of 8 .72 years, and the flow for benefits for the next ten years and more is expected to be as follows: Years ThCh$ 1 6,004,886 2 5,304,228 3 5,264,382 4 4,304,571 5 5,181,657 6 to10 23,620,901

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Shareholders Equity [Line Items]
Schedule of Movements in Shares as Result of Merger	The changes in the number of shares of Enel Chile as a result of the corporate reorganization process described above are detailed below: Number of outstanding shares of Enel Chile prior to the reorganization Number of shares Ratio for Number of Public Tender Offer Shares of Enel Generation (1): Purchased shares - national market 2.88 Purchased shares - ADS 2.88 Total Public Tender Offer for Shares 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 Total Merger with EGPL 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 associated with the issuance of these new shares was ThCh$649,730,695. (2) The payment made by minority shareholders of Enel Chile was ThCh$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 share repurchase 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 12-20-2017 37,134,944 0.75642 2017 5 Final 04-25-2018 04-25-2018 155,025,509 2.24134 2017 6 Interim 11-29-2018 11-29-2018 31,288,371 0.45236 2018 7 Final 04-29-2019 04-29-2019 185,737,592 2.68537 2018 8 Final 11-26-2019 11-26-2019 30,933,437 0.44723 2019
Summary of Foreign Currency Translation Differences Attributable to Shareholders	The following table sets forth foreign currency translation adjustments attributable to the shareholders of the Company for the years ended December 31, 2019, 2018 and 2017 For the years ended December 31, 2019 2018 2017 Reserves for Accumulated Currency Translation Differences ThCh$ ThCh$ ThCh$ GasAtacama Chile S.A. (3,292,629) 302,222 6,416,189 GNL Chile S.A. 1,022,047 900,483 560,194 Enel Green Power Chile Group 168,387,151 100,452,131 — TOTAL 166,116,569 101,654,836 6,976,383
Summary of Other Reserves Within Equity	Other reserves within Equity attributable to Enel Chile for the years ended December 31, 2019 and 2018, are as follows: Balance at 2019 Changes Balance at 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 of 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) Balance at 2018 Changes Balance at 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 of 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) Balance at 2017 Changes Balance at Other reserves ThCh$ ThCh$ ThCh$ Exchange differences on translation 9,222,933 (2,246,550) 6,976,383 Cash flow hedges (76,218,470) 43,368,734 (32,849,736) Available-for-sale financial assets 9,955 1,329 11,284 Other comprehensive income from non-current assets held for sale (*) 1,632,724 (1,632,724) — Other miscellaneous reserves (c) (969,740,120) (1,728,359) (971,468,479) TOTAL (1,035,092,978) 37,762,430 (997,330,548) (*) See note 5. a) Exchange differences on translation: These reserves arise primarily from exchange differences relating to: (i) T ranslation of the financial statements of our subsidiaries from their functional currencies to our presentation currency (i.e. Chilean peso) (see Note 2.7.3). b) Cash flow hedging reserves: These reserves represent the cumulative effective portion of gains and losses recognized in cash flow hedges (see Notes 3.g.5 and 3.h). c) Other miscellaneous reserves: The main items and their effects are the following:
Summary of Non-controlling Interests	The detail of non-controlling interests at December 31, 2019, 2018 and 2017, is as follows: Non-controlling Interests Equity Profit (Loss) 12-31-2019 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 Companies % ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Enel Distribución Chile S.A. 0.91% 7,691,319 6,965,769 6,223,363 1,079,941 1,112,709 961,490 Enel Generación Chile S.A. 6.45% 126,700,973 127,136,175 784,999,394 12,667,880 42,883,953 167,465,216 Empresa Eléctrica Pehuenche S.A. 7.35% 10,079,858 10,310,215 9,963,472 6,241,062 6,885,422 5,649,253 Sociedad AgrÍcola de Cameros Ltda. 42.50% 1,837,612 2,342,160 2,596,764 (504,550) (254,604) (39,706) Geotermica del Norte SA 15.41% 57,871,809 53,693,407 — (264,158) (187,989) — Empresa Nacional de Geotermia SA 49.00% 995,614 993,295 — (74,963) 41,780 — Parque Eolico Talinay Oriente SA 39.09% 57,586,860 51,702,606 — 868,127 662,374 — Others (178,379) (208,365) (205,346) (73,726) (5,825) (984) TOTAL 262,585,666 252,935,262 803,577,647 19,939,613 51,137,820 174,035,269
Other Miscellaneous Reserves
Disclosure Of Shareholders Equity [Line Items]
Summary of Other Reserves Within Equity	a) The main items and their effects are the following: For the years ended 2019 2018 2017 Other Miscellaneous Reserves ThCh$ ThCh$ ThCh$ Reserve for corporate reorganization (“Spin-Off”) (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) — Reserves “Reorganization of Renewable Assets” (v) (407,354,462) (407,354,462) — Hyperinflation Argentina (vi) 8,939,332 3,508,753 — Other Miscellaneous Reserves (vii) 7,001,861 7,592,112 7,308,596 TOTAL (2,280,627,568) (2,285,467,896) (971,468,479) (i) Reserve for corporate restructuring (Spin-Off) : Represents the effect generated by the corporate reorganization of Enersis S.A. (currently Enel Américas), effected in 2016, through which the company divided its business between Chile and other subsidiaries in South America. The new company was named Enersis Chile (currently Enel Chile), which was assigned the equity corresponding to the business related to Chile. (ii) Reserve for transition to IFRS : In accordance with Official Bulletin No. 456 from the CMF, included in this line item is the monetary correction corresponding to the accumulated paid-up capital from the date of our transition to IFRS, January 1, 2004, to December 31, 2008. (iii) Reserve for subsidiaries transactions : Corresponds to the effect of acquisitions of equity interests in subsidiaries entities under common control. (iv) Reserve Tender Offer for Enel Generación “Reorganization of Renewable Assets” : Represents the difference between the book value of the non-controlling interests acquired as part of the Tender Offer directed at the acquisition of all the shares issued by the subsidiary Enel Generación (see Note 6.i). (v) Reserve “Reorganization of Renewable Assets” : Corresponds to the reserve constituted by the merger of Enel Green Power Latin America with Enel Chile, materialized on April 2, 2018. It represents the recognition of the resulting difference between the capital increase in Enel Chile (correspond to market value participation over Enel Green Power Chile and subsidiaries) and the carrying amount of Enel Green Power Latin America that became part of the share capital in the distributable net assets to the owners of Enel Chile, as a result of the merger (see Note 6. iii). (vi) Hyperinflation Argentina: Corresponds to the effect calculated by the application of IAS 29 “Financial Information in Hyperinflationary Economies” on the subsidiary owned by the Enel Generación Group in Argentina (see Note 7). (vii) Other miscellaneous reserves from transactions made in prior years.

Revenue and Other Operating I_2

Revenue and Other Operating Income (Tables)	12 Months Ended
	Dec. 31, 2019
REVENUE AND OTHER OPERATING INCOME
Summary of Revenues and Other Operating Income	For the years ended December 31, 2019 2018 2017 Revenues ThCh$ ThCh$ ThCh$ Energy sales 2,405,903,242 2,202,078,088 2,262,090,558 Generation 1,090,021,527 1,034,975,160 1,082,749,256 Regulated customers (1) 589,368,952 643,494,066 726,166,640 Non-regulated customers 475,208,116 357,725,928 285,623,737 Spot market sales 25,444,459 33,755,166 70,958,879 Distribution 1,315,881,715 1,167,102,928 1,179,341,302 Residential (1) 552,124,205 455,840,910 435,769,231 Business 450,108,855 378,092,990 386,608,105 Industrial 181,595,960 209,252,478 225,736,231 Other consumers (2) 132,052,695 123,916,550 131,227,735 Other sales 124,113,792 123,345,383 107,362,797 Natural gas sales 97,564,262 103,717,558 91,652,707 Sales of products and services 26,549,530 19,627,825 15,710,090 Revenue from other services 94,559,289 84,936,988 114,648,227 Tolls and transmission 31,232,252 20,311,403 39,812,005 Metering equipment leases 2,131,427 5,024,944 4,945,609 Public lighting 11,262,418 12,181,969 13,449,852 Engineering and consulting services 10,385,950 10,027,472 3,414,472 Services for construction of junctions 16,497,051 14,711,796 15,514,433 Works in specific facilities and networks 7,455,200 8,425,251 13,932,537 Income from work in progress 2,727,203 1,947,722 2,883,530 Other services 12,867,788 12,306,431 20,695,789 Total Revenues 2,624,576,323 2,410,360,459 2,484,101,582 Other Operating Income ThCh$ ThCh$ ThCh$ Commodity derivatives 5,967,739 9,819,777 20,328,649 Income from early termination of electricity supply contracts (3) 121,117,605 — — Other income (4) 19,172,693 36,981,190 18,548,051 Total other income 146,258,037 46,800,967 38,876,700 (1) In 2019, this amount includes the effect of ThCh$142,367,584 corresponding to the differences between the prices of the electricity supply contracts and the regulated prices, which will be invoiced in the future following the scheme established in Law 21,185 (see note 10). Of this amount, ThCh$87,906,446 correspond to revenues that the Group must transfer to final customers through its subsidiary Enel Distribución Chile. (2) For the year ended December 31, 2019, it includes revenues from energy sales to municipalities of ThCh$45,768,456 (ThCh$36,878,861 and ThCh$36,165,698) for the years ended December 31, 2018 and 2017, respectively); government entities for ThCh$20,432,048 (ThCh$20,246,633 and ThCh$20,080,121 for the years ended December 31, 2018 and 2017, respectively); companies in the agricultural sector for ThCh$9,100,691 (ThCh$6,173,077 and ThCh$5,811,319 for the years ended December 31, 2018 and 2017, respectively); public services companies and telecommunications for ThCh$24,818,503 (ThCh$26,636,066 and ThCh$33,649,705 for the years ended December 31, 2018 and 2017 respectively), educational area ThCh$9,367,933 (ThCh$12,470,709 and ThCh $ 14,015,433 for the years ended December 31, 2018 and 2017, respectively), health services ThCh $ 18,975,909 (ThCh $ 19,629,502 and ThCh $18,290,164 for the years ended December 31, 2018 and 2017, respectively) and others for ThCh $ 3,589,156 (ThCh $ 1,881,702 and ThCh $ 3,215,295 for the years ended December 31, 2018 and 2017, respectively) (3) In February 2019, Anglo American Sur S.A. notified Enel Generación Chile of its decision to terminate in advance three electricity supply contracts, which both parties had signed in 2016. As stipulated in the exit and termination clauses of the respective contracts, the advance termination notice granted to Enel Generación Chile the right to receive an exit compensation, consisting of the payment of a cash amount by Anglo American Sur SA, determinable according to a predetermined calculation mechanism. It is important to note that, between the date of notification of the anticipated term and the effective termination date of the contracts, there were no performance obligations pending delivery by Enel Generación Chile, since the original contracts established the start of supply in January of the year 2021. Based on the foregoing, (following the accounting criteria described in note 3.q), revenue of ThCh$121,117,605 was recognized. Finally, on June 21, 2019, Enel Generación Chile made an unsuccessful transfer of the cash flows under this agreement. As a result of the foregoing, the derecognition of the account receivable from Anglo American Sur S.A. that existed at that date was offset against the exit compensation amount rather than there being an exchange of cash . For the year ended December 31, 2019, it includes facilities leases of ThCh$3,835,198 (ThCh$0 for the years ended December 31, 2018 and 2017), recovery of revenues from customers with unregistered consumption of ThCh$2,746,764 (ThCh$2,847,740 and ThCh$1,968,203 for the years ended December 31, 2018 and 2017, respectively), late payment cancellation revenues of ThCh$485,684 (ThCh$675,202 and ThCh$1,299,470 for the years ended December 31, 2018 and 2017, respectively), Central Claims of Tarapacá for ThCh$4,380,934 (ThCh$21,987,899 and ThCh$0 for the years ended December 31, 2018 and 2017, respectively), and other revenue for ThCh$7,724,113 (ThCh$11,470,349 and ThCh$15,280,378 for the years ended 31 December 2018 and 2017, respectively).

Raw Materials and Consumables_2

Raw Materials and Consumables Used (Tables)	12 Months Ended
	Dec. 31, 2019
RAW MATERIALS AND CONSUMABLES USED.
Schedule of Raw Materials and Consumables Used	The detail of raw materials and consumables used for the years ended December 31, 2019, 2018 and 2017, is as follows: For the years ended December 31, 2019 2018 2017 Raw materials and consumables used ThCh$ ThCh$ ThCh$ Energy purchases (835,284,742) (747,646,603) (902,434,871) Fuel consumption (230,944,415) (231,028,169) (280,739,362) Gas (134,127,365) (140,145,010) (170,456,730) Oil (3,326,061) (11,146,001) (21,227,747) Coal (93,490,989) (79,737,158) (89,054,885) Transportation costs (196,848,788) (166,875,801) (155,879,249) Gas sales costs (74,998,608) (80,477,713) (75,662,185) Other raw materials and consumables (83,128,698) (66,148,830) (100,071,254) Total (1,421,205,251) (1,292,177,116) (1,514,786,921)

Employee Benefits Expense (Tabl

Employee Benefits Expense (Tables)	12 Months Ended
	Dec. 31, 2019
EMPLOYEE BENEFITS EXPENSE.
Summary of Employee Expenses	Employee expenses for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Employee Benefits Expense ThCh$ ThCh$ ThCh$ Wages and salaries (109,101,737) (102,897,710) (100,653,880) Post-employment benefit obligations expense (3,153,395) (1,881,202) (2,091,205) Social security and other contributions (14,334,587) (13,405,944) (13,150,402) Other employee expenses (3,015,237) (4,945,478) (5,608,290) Total (129,604,956) (123,130,334) (121,503,777)

Depreciation, Amortization an_2

Depreciation, Amortization and Impairment Losses (Tables)	12 Months Ended
	Dec. 31, 2019
DEPRECIATION, AMORTIZATION AND IMPAIRMENT LOSSES.
Summary of Depreciation, Amortization and Impairment losses	a) The detail of depreciation, amortization and impairment losses for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 ThCh$ ThCh$ ThCh$ Depreciation (224,724,380) (202,971,892) (145,873,065) Amortization (11,903,007) (12,215,408) (6,811,041) Total (236,627,387) (215,187,300) (152,684,106) b) The detail of the items related to impairment for the years ended December 31, 2019, 2018 and 2017 is as follows: For the years ended December 31, Generation Distribution Other Total 2019 2018 2017 2019 2018 2017 2019 2018 2017 2019 2018 2017 (*) Impairment Losses ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Property, Plant and Equipment (see Note 18) (280,020,263) — — — — — — — — (280,020,263) — — Investment Property (see Note 19) — — — — — — (742,389) (779,825) — (742,389) (779,825) — Total Reversal of impairment losses (impairment losses) recognized in profit or loss (280,020,263) — — — — — (742,389) (779,825) — (280,762,652) (779,825) — Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9 (see Note 11.d) (1,338,599) (106,264) 55,494 (8,153,419) (4,676,808) (7,993,311) (554,982) — — (10,047,000) (4,783,072) (7,937,817)

Other Expenses (Tables)

Other Expenses (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER EXPENSES
Summary of Other Miscellaneous Operating Expenses	Other miscellaneous operating expenses for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Other Expenses ThCh$ ThCh$ ThCh$ Professional, outsourced and other services (60,808,462) (69,692,677) (74,722,143) Administrative expenses (8,893,785) (5,991,676) (2,267,390) Repairs and maintenance (50,846,851) (41,829,409) (17,906,263) Indemnities and fines (1,243,376) (455,825) (776,011) Taxes and charges (6,802,176) (4,415,819) (5,105,235) Insurance premiums (19,200,681) (15,794,761) (13,277,718) Leases and rental costs (3,824,195) (3,775,007) (2,013,411) Marketing, public relations and advertising (3,274,693) (2,440,070) (2,501,027) Write-off Property, Plant and Equipment (*) (3,510,591) — (25,105,911) Travel expenses (3,991,349) (2,436,407) (3,426,179) Environmental expenses (9,886,690) (9,664,683) (7,769,230) Other supplies and services (11,860,291) (10,713,687) (6,953,556) Total (184,143,140) (167,210,021) (161,824,074) (*) See explanation in Notes 18 e) xi) and vii) for the years 2019 and 2017, respectively

Other Gains (Losses) (Tables)

Other Gains (Losses) (Tables)	12 Months Ended
	Dec. 31, 2019
OTHER GAINS (LOSSES)
Summary of Other gains (losses)	Other gains (losses) for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Other Gains (Losses) ThCh$ ThCh$ ThCh$ Gain on sale of Electrogas (*) — — 105,311,912 Gain on sale of Property, Plant and Equipment 1,530,689 3,024,549 7,779,531 Gain on sale of investment properties 262,512 385,830 149,753 Total 1,793,201 3,410,379 113,241,196 (*)

Financial Results (Tables)

Financial Results (Tables)	12 Months Ended
	Dec. 31, 2019
FINANCIAL RESULTS.
Summary of Financial Income and Costs	Financial income and costs for the years ended December 31, 2019, 2018 and 2017, are as follows: For the years ended December 31, 2019 2018 2017 Financial Income ThCh$ ThCh$ ThCh$ Income from deposits and other financial instruments 8,973,606 9,612,575 8,377,023 Interests charged to customers in energy accounts and billing 8,057,203 7,140,984 8,556,587 Financial income by Law N°21,185 (1) 5,225,739 Other financial income 5,142,727 3,180,909 4,729,078 Total Financial Income 27,399,275 19,934,468 21,662,688 For the years ended December 31, 2019 2018 2017 Financial Costs ThCh$ ThCh$ ThCh$ Financial Costs (164,897,900) (122,184,189) (53,510,882) Bank loans (14,487,700) (20,701,774) (12,585) Secured and unsecured obligations (81,818,564) (62,255,300) (42,708,253) Financial leasing (1,815,170) (739,069) (811,172) Valuation of financial derivatives 1,775,749 1,183,228 (1,067,820) Financial provisions (2) (4,356,650) (3,176,001) (2,347,087) Post-employment benefit obligations (3) (2,639,738) (2,750,376) (2,678,300) Debt formalization expenses and other associated expenses (4,710,012) (9,373,412) (836,174) Capitalized borrowing costs 9,321,354 6,435,646 4,078,463 Financial cost related companies (31,304,382) (23,228,947) (452,642) Financial cost by Law N°21,185 (1) (19,062,333) — — Other financial costs (15,800,454) (7,578,184) (6,675,312) (Loss) gain from indexed assets and liabilities, net (2,982,268) (818,146) 916,666 Foreign currency exchange differences (10,412,110) (7,807,197) 8,516,874 Total Financial Costs (178,292,278) (130,809,532) (44,077,342) Total Financial Results (150,893,003) (110,875,064) (22,414,654) (1) Corresponding to financial costs and profits from the calculating methodology for “Stabilized Price to Regulated Customer” according to Law No 21,185 (see Note 11). (2) See Note 25. (3) See Note 26.
Summary of Effects on Exchange Differences and Application of Indexed Assets and Liabilities	For the years ended December 31, 2019 2018 2017 Profit (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 1,410,408 1,197,498 155,158 Current tax assets and liabilities 2,557,465 3,424,644 1,654,538 Other financial liabilities (financial debt and derivative instruments) (1,637,291) (1,714,216) (891,230) Trade and other payables 16,939 15,145 (1,800) Other non-financial liabilities (1,688) — — Sub total 2,382,630 2,968,179 916,666 Hyperinflation Result (1) (5,364,898) (3,786,325) — Gains from indexed assets and liabilities, net (2,982,268) (818,146) 916,666 For the years ended December 31, 2019 2018 2017 Foreign Currency Exchange Differences ThCh$ ThCh$ ThCh$ Cash and cash equivalents (937,177) (415,962) 2,931,086 Other financial assets 2,052,540 5,733,173 10,895,862 Other non-financial assets (1,712,690) (534,401) — Trade and other receivables (2) 8,847,969 726,347 390,764 Current tax assets and liabilities (1,633,471) (1,903,963) (188,270) Other financial liabilities (financial debt and derivative instruments) (8,147,939) (5,726,246) (4,358,937) Trade and other payables (2) (9,381,721) (5,379,210) (1,152,505) Other non-financial liabilities 500,379 (306,935) (1,126) Total Foreign Currency Exchange Differences (10,412,110) (7,807,197) 8,516,874 (1) Corresponds to the financial effect from the application of IAS 29 Financial Reporting in Hyperinflationary Economies on the branch owned by Enel Generación Chile in Argentina (see Note 7) Contains the exchange effect for dollarization of trade accounts receivable and payable for amounts of ThCh$ 5,261,358 and ThCh$ (1,426,334) respectively, originated by the application of the methodology for calculating the “Stabilized Price to Regulated Customer” according to Law No. 21,185 (see Note 11).

Information by Segment (Tables)

Information by Segment (Tables)	12 Months Ended
	Dec. 31, 2019
INFORMATION BY SEGMENT
Summary of Assets and Liabilities by Segment	35.2 Generation, distribution and others Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ASSETS CURRENT ASSETS 941,262,837 997,843,912 289,393,932 296,453,471 (212,444,109) (297,349,611) 1,018,212,660 996,947,772 Cash and cash equivalents 26,391,853 155,591,949 2,331,365 4,969,412 206,961,282 84,610,563 235,684,500 245,171,924 Other current financial assets 489,658 39,507,485 64,220 62,226 756,717 733,462 1,310,595 40,303,173 Other current non-financial assets 8,908,239 14,074,044 8,868,077 5,648,807 16,858,247 2,683,237 34,634,563 22,406,088 Trade and other current receivables 230,670,997 254,374,451 260,840,410 218,310,327 19,943,923 5,485,289 511,455,330 478,170,067 Current accounts receivable from related companies 587,067,775 422,492,265 10,115,510 59,827,152 (529,001,152) (428,148,357) 68,182,133 54,171,060 Inventories 34,705,515 48,221,915 3,150,943 3,528,174 1,815,792 5,211,554 39,672,250 56,961,643 Current tax assets 53,028,800 63,581,803 4,023,407 4,107,373 70,221,082 32,074,641 127,273,289 99,763,817 Non-current assets classified as held for sale — — — — — — — — NON-CURRENT ASSETS 4,771,905,050 4,625,205,545 1,175,550,962 982,926,699 892,319,492 882,940,148 6,839,775,504 6,491,072,392 Other non-current financial assets 7,189,431 6,554,114 22,741 26,410 8,448 689,145 7,220,620 7,269,669 Other non-current non-financial assets 34,903,436 42,006,844 2,576,585 2,600,071 570,163 1,097 38,050,184 44,608,012 Trade and other non-current receivables 88,225,632 1,565,812 157,051,933 41,993,899 68,296,820 16,968,132 313,574,385 60,527,843 Non-Current accounts payable from related companies 80,926,788 — — — (46,519,646) — 34,407,142 — Investments accounted for using the equity method 7,928,588 12,873,531 — — — — 7,928,588 12,873,531 Intangible assets other than goodwill 76,077,944 68,776,401 51,360,795 41,963,796 4,839,854 4,632,196 132,278,593 115,372,393 Goodwill 33,135,272 32,500,603 2,240,478 2,240,478 881,977,224 880,303,644 917,352,974 915,044,725 Property, plant and equipment 4,422,575,593 4,442,872,809 961,392,557 893,246,804 (23,648,526) (27,471,980) 5,360,319,624 5,308,647,633 Investment property — — — — 6,795,155 7,557,356 6,795,155 7,557,356 Deferred tax assets 20,942,366 18,055,431 905,873 855,241 — 260,558 21,848,239 19,171,230 TOTAL ASSETS 5,713,167,887 5,623,049,457 1,464,944,894 1,279,380,170 679,875,383 585,590,537 7,857,988,164 7,488,020,164 Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 12-31-2019 12-31-2018 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ LIABILITIES AND EQUITY CURRENT LIABILITIES 844,513,549 909,428,562 317,248,207 450,182,594 (120,461,904) (142,147,004) 1,041,299,852 1,217,464,152 Other current financial liabilities 211,928,086 196,141,320 738,783 2 1,989,707 214,524,493 214,656,576 410,665,815 Trade and other current payables 300,957,548 317,337,886 200,472,938 156,939,551 97,832,722 80,008,887 599,263,208 554,286,324 Current accounts payable to related companies 296,861,070 337,986,306 87,507,312 258,410,862 (224,558,495) (438,460,843) 159,809,887 157,936,325 Other current provisions 3,619,734 5,195,377 — — 446,231 393,409 4,065,965 5,588,786 Current tax liabilities 17,717,789 12,563,801 34,718 5,114,119 243,326 — 17,995,833 17,677,920 Other current non-financial liabilities 13,429,322 40,203,872 28,494,456 29,718,060 3,584,605 1,387,050 45,508,383 71,308,982 NON-CURRENT LIABILITIES 1,899,077,568 1,846,575,202 301,769,861 63,065,351 868,557,231 686,751,678 3,069,404,660 2,596,392,231 Other non-current financial liabilities 998,974,951 1,028,833,254 2,993,326 — 738,201,642 677,000,249 1,740,169,919 1,705,833,503 Trade and other non-current payables 2,281,053 2,556,521 53,968,545 27,172 487 487 56,250,085 2,584,180 Non-current accounts payable to related companies 486,839,484 447,193,802 182,031,404 — 115,502,596 — 784,373,484 447,193,802 Other long-term provisions 160,006,401 91,898,262 11,853,881 13,973,113 — — 171,860,282 105,871,375 Deferred tax liabilities 231,156,234 260,950,163 19,818,625 21,335,014 (1,690,218) (4,205,123) 249,284,641 278,080,054 Non-current provisions for employee benefits 19,819,445 15,143,200 29,801,321 27,503,399 16,542,724 13,956,065 66,163,490 56,602,664 Other non-current non-financial liabilities — — 1,302,759 226,653 — — 1,302,759 226,653 EQUITY 2,969,576,770 2,867,045,693 845,926,826 766,132,225 (68,219,944) 40,985,863 3,747,283,652 3,674,163,781 Equity attributable to Enel Chile 2,969,576,770 2,867,045,693 845,926,826 766,132,225 (68,219,944) 40,985,863 3,484,697,986 3,421,228,519 Issued capital 1,185,731,351 1,137,185,366 230,137,980 230,137,980 2,466,234,139 2,587,168,133 3,882,103,470 3,954,491,479 Retained earnings 1,735,720,458 1,626,928,911 933,560,288 852,296,368 (661,177,095) (564,427,666) 2,008,103,651 1,914,797,613 Share Premium 85,511,492 85,511,492 354,220 354,220 (85,865,712) (85,865,712) — — Treasury shares — — — — — (72,388,009) — (72,388,009) Other reserves (37,386,531) 17,419,924 (318,125,662) (316,656,343) (1,787,411,276) (1,823,500,883) (2,405,509,135) (2,375,672,564) Non-controlling interests — — — — — — 262,585,666 252,935,262 Total Liabilities and Equity 5,713,167,887 5,623,049,457 1,464,944,894 1,279,380,170 679,875,383 585,590,537 7,857,988,164 7,488,020,164
Summary of Comprehensive Income by Segment	Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENT OF COMPREHENSIVE INCOME REVENUES AND OTHER OPERATING INCOME 1,726,611,508 1,580,653,088 1,634,937,087 1,412,871,738 1,263,224,072 1,326,658,860 (368,648,886) (386,715,734) (438,617,665) 2,770,834,360 2,457,161,426 2,522,978,282 Revenues 1,581,230,963 1,540,352,133 1,599,032,140 1,408,588,042 1,254,943,604 1,322,422,609 (365,242,682) (384,935,278) (437,353,167) 2,624,576,323 2,410,360,459 2,484,101,582 Energy sales 1,472,565,933 1,425,942,129 1,457,671,722 1,318,386,716 1,170,129,333 1,180,426,814 (385,049,407) (393,993,374) (376,007,978) 2,405,903,242 2,202,078,088 2,262,090,558 Other sales 97,870,470 103,779,801 94,452,287 9,365,186 16,411,425 12,741,568 16,878,136 3,154,157 168,942 124,113,792 123,345,383 107,362,797 Other services rendered 10,794,560 10,630,203 46,908,131 80,836,140 68,402,846 129,254,227 2,928,589 5,903,939 (61,514,131) 94,559,289 84,936,988 114,648,227 Other operating income 145,380,545 40,300,955 35,904,947 4,283,696 8,280,468 4,236,251 (3,406,204) (1,780,456) (1,264,498) 146,258,037 46,800,967 38,876,700 RAW MATERIALS AND CONSUMABLES USED (678,187,609) (709,506,221) (903,978,006) (1,114,936,281) (972,499,918) (1,055,708,050) 371,918,639 389,829,023 444,899,135 (1,421,205,251) (1,292,177,116) (1,514,786,921) Energy purchases (160,044,206) (213,114,437) (346,954,692) (1,056,562,636) (926,385,346) (938,067,783) 381,322,099 391,853,181 382,587,604 (835,284,743) (747,646,602) (902,434,871) Fuel consumption (230,944,414) (231,028,169) (280,739,362) — — — — — — (230,944,414) (231,028,169) (280,739,362) Transportation expenses (169,062,680) (154,044,158) (152,869,838) (22,725,942) (9,816,883) (63,009,956) (5,060,166) (3,014,761) 60,000,545 (196,848,788) (166,875,802) (155,879,249) Other miscellaneous supplies and services (118,136,309) (111,319,457) (123,414,114) (35,647,703) (36,297,689) (54,630,311) (4,343,294) 990,603 2,310,986 (158,127,306) (146,626,543) (175,733,439) CONTRIBUTION MARGIN 1,048,423,899 871,146,867 730,959,081 297,935,457 290,724,154 270,950,810 3,269,753 3,113,289 6,281,470 1,349,629,109 1,164,984,310 1,008,191,361 Other work performed by the entity and capitalized 8,887,421 8,663,737 7,226,484 8,723,440 6,667,947 6,630,130 — 1,379,279 532,373 17,610,861 16,710,963 14,388,987 Employee benefits expense (62,871,525) (61,991,737) (54,222,470) (34,828,194) (32,598,818) (38,449,551) (31,905,237) (28,539,779) (28,831,756) (129,604,956) (123,130,334) (121,503,777) Other expenses (120,522,841) (104,190,567) (102,821,020) (70,678,241) (64,179,201) (61,942,592) 7,057,942 1,159,747 2,939,538 (184,143,140) (167,210,021) (161,824,074) GROSS OPERATING INCOME 873,916,954 713,628,300 581,142,075 201,152,462 200,614,082 177,188,797 (21,577,542) (22,887,464) (19,078,375) 1,053,491,874 891,354,918 739,252,497 Depreciation and amortization expense (196,623,025) (179,901,682) (117,337,553) (40,705,580) (36,677,957) (36,685,324) 701,218 1,392,339 1,338,771 (236,627,387) (215,187,300) (152,684,106) Impairment losses (reversal of impairment losses) recognized in profit or loss (280,020,263) — — — — — (742,389) (779,825) — (280,762,652) (779,825) — Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9. (1,338,599) (106,264) 55,494 (8,153,419) (4,676,808) (7,993,311) (554,982) — — (10,047,000) (4,783,072) (7,937,817) OPERATING INCOME 395,935,067 533,620,354 463,860,016 152,293,463 159,259,317 132,510,162 (22,173,695) (22,274,950) (17,739,604) 526,054,835 670,604,721 578,630,574 FINANCIAL RESULT (101,324,905) (86,621,659) (36,610,248) 5,232,127 6,088,801 6,411,837 (54,800,225) (30,342,206) 7,783,757 (150,893,003) (110,875,064) (22,414,654) Financial income 15,241,046 8,727,356 5,273,672 22,742,687 11,166,433 12,894,635 (10,584,458) 40,679 3,494,381 27,399,275 19,934,468 21,662,688 Cash and cash equivalents 3,556,554 5,673,621 3,077,708 1,456,253 1,633,373 1,975,564 3,960,799 2,305,581 3,323,751 8,973,606 9,612,575 8,377,023 Other financial income 11,684,492 3,053,735 2,195,964 21,286,434 9,533,060 10,919,071 (14,545,257) (2,264,902) 170,630 18,425,669 10,321,893 13,285,665 Financial costs (111,219,566) (82,878,715) (50,851,829) (19,061,123) (6,724,490) (7,094,366) (34,617,211) (32,580,984) 4,435,313 (164,897,900) (122,184,189) (53,510,882) Bank borrowings (11,813,855) (9,269,535) (261) (40,508) (5,374) (12,299) (2,633,337) (11,426,865) (25) (14,487,700) (20,701,774) (12,585) Secured and unsecured obligations (45,714,879) (43,965,839) (42,708,253) — — — (36,103,685) (18,289,461) — (81,818,564) (62,255,300) (42,708,253) Other (53,690,832) (29,643,341) (8,143,315) (19,020,615) (6,719,116) (7,082,067) 4,119,811 (2,864,658) 4,435,338 (68,591,636) (39,227,115) (10,790,044) Profit (loss) from indexed assets and liabilities (5,157,076) (2,480,291) 145,608 1,843,435 1,616,607 761,262 331,373 45,538 9,796 (2,982,268) (818,146) 916,666 Foreign currency exchange differences (189,309) (9,990,009) 8,822,301 (292,872) 30,251 (149,694) (9,929,929) 2,152,561 (155,733) (10,412,110) (7,807,197) 8,516,874 Share of profit of associates accounted for using the equity method 366,089 3,190,240 (2,696,904) — — — — — — 366,089 3,190,240 (2,696,904) Other gains (losses) 1,683,246 3,434,503 113,088,869 12 — 157,458 109,943 (24,124) (5,131) 1,793,201 3,410,379 113,241,196 Gain (loss) from other investments 152,557 409,954 105,462,769 12 — 4,026 109,943 (24,124) (5,131) 262,512 385,830 105,461,664 Gain (loss) from the sale of property, plant and equipment 1,530,689 3,024,549 7,626,100 — — 153,432 — — — 1,530,689 3,024,549 7,779,532 Income before tax 296,659,497 453,623,438 537,641,733 157,525,602 165,348,118 139,079,457 (76,863,977) (52,641,280) (9,960,978) 377,321,122 566,330,276 666,760,212 Income tax (40,347,869) (113,783,941) (112,099,519) (38,748,555) (42,967,123) (34,030,322) 17,868,520 3,268,545 2,787,540 (61,227,904) (153,482,519) (143,342,301) Net income from continuing operations 256,311,628 188,153,449 118,777,047 57,935,774 (58,995,457) 649,411 316,093,218 412,847,757 523,417,911 Net income from discontinued operations — — — — — — — — — NET INCOME 256,311,628 339,839,497 425,542,214 118,777,047 122,380,995 105,049,135 (58,995,457) (49,372,735) (7,173,438) 316,093,218 412,847,757 523,417,911 Net income attributable to: 256,311,628 339,839,497 425,542,214 118,777,047 122,380,995 105,049,135 (58,995,457) (49,372,735) (7,173,438) 316,093,218 412,847,757 523,417,911 Shareholders of Enel Chile — — — — — — — — — 296,153,605 361,709,937 349,382,642 Non-controlling interests — — — — — — — — — 19,939,613 51,137,820 174,035,269 Generation Distribution Holdings, eliminations and others Total 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 12-31-2019 12-31-2018 12-31-2017 Line of Business ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ STATEMENT OF CASH FLOWS Cash flows from (used in) operating activities 754,113,794 638,607,494 488,167,382 50,246,845 117,692,384 170,628,958 (60,648,920) (20,774,356) (23,182,620) 743,711,719 735,525,522 635,613,720 Cash flows from (used in) investing activities (426,038,012) (451,284,432) (91,867,647) (28,896,947) (123,070,452) (74,464,531) 143,403,148 (1,307,204,810) 19,866,401 (311,531,811) (1,881,559,694) (146,465,777) Cash flows from (used in) financing activities (453,927,358) (249,051,150) (301,835,211) (23,901,991) (32,268,227) (76,923,085) 37,393,661 1,247,896,253 61,162,775 (440,435,688) 966,576,876 (317,595,521)

Third Party Guarantees, Other_2

Third Party Guarantees, Other Contingent Assets and Liabilities, and Other Commitments (Tables)	12 Months Ended
	Dec. 31, 2019
PROVISIONS
Summary of Indirect Guarantees	Debtor Outstanding balance as of Contract Maturity Creditor of Guarantee Company Relationship Type of Guarantee Currency 12-31-2019 12-31-2018 Bonds Series B (1) October 2028 Bondholders of Enel Américas’ Bonds Enel Américas Entities demerged from original debtor Enersis S.A. (codebtor Enel Chile S.A.) Codebtor UF 11,646,991 15,821,814 Credit Agreement September 2019 Scotiabank Chile Enel Green Power Chile Limitada Subsidiary Aval USD - 70,214,637 Credit Agreement December 2020 Scotiabank Chile Enel Green Power Chile Limitada Subsidiary Aval USD 112,882,048 104,258,927 Credit Agreement November 2022 Pto. GDN BID Enel Green Power Chile Limitada Subsidiary Aval USD 22,592,723 - Credit Agreement December 2021 Scotiabank Chile Empresa Eléctrica Panguipulli S.A. Subsidiary Aval USD 113,069,511 104,477,333 Credit Agreement December 2027 Enel Finance International N.V. Enel Green Power Chile Limitada Subsidiary Aval USD 484,341,824 447,431,880 (1) As a result of the Enersis’ Spin-Off and in accordance with the bond indenture, all entities arising from the demerger are liable for the debt, regardless that the payment obligation remains in Enel Américas S.A.

Personnel Figures (Tables)

Personnel Figures (Tables)	12 Months Ended
	Dec. 31, 2019
PERSONNEL FIGURES
Summary of Number of Employees	37. PERSONNEL FIGURES The Company’s personnel as of December 31, 2019 and 2018, is distributed as follows: December 31, 2019 Country Managers and key Professional and Staff and Total Chile 54 1,932 139 2,125 Argentina — 6 17 23 Total 54 1,938 156 2,148 Average December 31, 2018 Country Managersand key Professionals and Staff and Total Chile 57 1,824 155 2,036 Argentina — 7 19 26 Total 57 1,831 174 2,062 Average 53 1,874 169 2,096

Environment (Tables)

Environment (Tables)	12 Months Ended
	Dec. 31, 2019
ENVIRONMENT
Summary of Environmental Expenses	12-31-2019 12-31-2018 Company Incurring the Cost Name of project Description Project Status Total Amounts Expenses Disbursement Estimated Total Total from the previous year ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ PEHUENCHE CENTRAL Waste Management In process 3,165 — 3,165 — - 3,165 — Environmental Sanitation In process 1,988 — 1,988 — - 1,988 — Hydroelectric Central Environmental Expenditures C.H. Pehuenche E E Pehuenche S.A. Suministro de equipos de medicion de caudales. Finished — — — — - — 48,574 Empresa Electrica Pehuenche S.A. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste at hydroelectric power stations (HPS), thermoelectric power stations and combine cycle power stations. Finished — — — — - — 62,560 CURILLINQUE CENTRAL Campaigns and Studies In process 9,061 — 9,061 — - 9,061 — Environmental Sanitation In process 882 — 882 — - 882 — LOMA ALTA CENTRAL Environmental Sanitation In process 882 — 882 — - 882 — Removal of Asbestos from Underground Cables Removal of flame retardant tape with asbestos from the underground network MT. In process — — — — - — 383,914 ENVIRONMENTAL MONITORING Environmental monitoring with SK Ecología operation and maintenance CEMS In process 576,519 — 576,519 — - 576,519 797,543 CEMS STANDARDIZATION Standardization warehouses, environmental management, regularization environmental impact assessment (EIA) In process 207,966 207,966 — — - 207,966 645,302 HYDRAULIC POWER STATIONS Waste Management e higienización In process 2,315 — 2,315 — - 2,315 11,567 Enel Generación Chile S.A. CC.CC. ENVIRONMENTAL EXPENSES The main expenses incurred are: Bocamina U1-2: Operation and maintenance monitoring of air and meteorological quality stations, Environmental audit, monitoring network 1 a year, Annual CEMS Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Isokinetic Measurements , SGI Works (Objective NC, inspections, audits and inspection) ISO 14001, OHSAS certification, Operation and Maintenance Service CEMS. In process 1,452,158 855,667 596,491 855,667 31/12/2020 2,307,825 2,102,056 CC.TT. ENVIRONMENTAL EXPENSES Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In process 5,387,657 1,763,829 3,623,828 1,763,829 31/12/2020 7,151,486 2,867,523 CC.HH. ENVIRONMENTAL EXPENSES Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric power plants (C.H.) In process 339,103 — 339,103 420,877 31/12/2020 759,980 183,156 C.H. Ralco Plan Ralco: Reforestation according to Agreement with the Catholic University and Electrification of housing in Ayin Maipu Finished — — — — - — 4,542,216 QUINTERO CENTRAL CEMS Central Quinteros In process 458,001 110,923 347,078 37,983 31/12/2020 495,984 417,194 CHANGE OF TRAD X CALPE NETWORK Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In process 1,476,780 1,476,780 — — - 1,476,780 1,382,504 The service consists in the weeding and control of weeds in electric power substations in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. Finished 2,600 — 2,600 — - 2,600 154,048 VEGETATION CONTROL IN NETWORKS Poda de arboles en cercanias de la red de media tensión In process — — — — - — 6,292,641 This activity contemplates the maintenance of the band of easement of high voltage lines between 34,5 y 500kv. Finished 67,291 — 67,291 — - 67,291 — VEGETATION CONTROL IN MT/BT Mejora en la red tradicional por calpe (cable aluminio preensamblado) In process — — — — - — 392,475 Pruning of trees near the media network and low voltage. Finished 3,507,502 — 3,507,502 — - 3,507,502 — ENVIRONMENTAL PERMITS Environmental Impact Statement: 1) New Lampa Sectioning Substation and 2) Ochagavia - Florida Line, Sanjon La Aguada Section Finished — — — — - — 6,970 Enel Distribución Chile S.A. The service consists of the maintenance of green areas with replacement of species and grass in Enel substation enclosures. Finished 64,737 — 64,737 — - 64,737 52,016 ENVIRONMENTAL MANAGEMENT IN SSEE The service consists of the maintenance of green areas with replacement of species and turf in Enel substations enclosures. Finished 19,706 — 19,706 - 19,706 46,907 The removal and transfer to waste dump from a Substation was carried out. Finished 21,719 — 21,719 — - 21,719 — ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in Metropolitan Park. Finished 2,337 — 2,337 — - 2,337 6,634 IMPROVEMENTS IN THE MT NETWORK Network replacement for weardown MT protected cable In process 170,077 170,077 — — - 170,077 176,142 RESPEL MANAGEMENT Dangerous waste management Finished 103,847 — 103,847 — - 103,847 1,780 REPLACE TRIFAS TRANSFORMERS MEJ QUALITY BT Replacement of transformers with chargeability problems In process 1,168,343 1,168,343 — — - 1,168,343 2,642,064 REPLACEMENT TD DAE CONCENTRICA X TD. TRIF. RED CALPE Concentrical network replacement by Calpe (Pre-assembled aluminum cable) BT In process 492,260 492,260 — — - 492,260 1,008,416 Enel Green Power del Sur Spa. Waste Management Finished 4,432 — 4,432 — - 4,432 — Carrera Pinto Environmental Sanitation Finished 6,466 — 6,466 — - 6,466 — Wastewater Treatment Plant Finished 4,436 — 4,436 — - 4,436 — Waste Management Finished 10,954 — 10,954 — - 10,954 — Finis Terrae Environmental Sanitation Finished 7,674 — 7,674 — - 7,674 — Wastewater Treatment Plant Finished 2,154 — 2,154 — - 2,154 — La Silla Environmental Sanitation Finished 2,902 — 2,902 — - 2,902 — Waste Management Finished 1,509 — 1,509 — - 1,509 — Campaigns and Studies Finished 20,613 — 20,613 — - 20,613 — Los Buenos Aires Environmental Sanitation Finished 3,989 — 3,989 — - 3,989 — Wastewater Treatment Plant Finished 882 — 882 — - 882 — Enel Green Power del Sur Spa. Environment Materials Finished 5,589 — 5,589 — - 5,589 — Waste Management Finished 5,098 — 5,098 — - 5,098 — Pampa Norte Environmental Sanitation Finished 6,618 — 6,618 — - 6,618 — Wastewater Treatment Plant Finished 3,459 — 3,459 — - 3,459 — Waste Management Finished 2,281 — 2,281 — - 2,281 — Campaigns and Studies Finished 83,820 — 83,820 — - 83,820 — Renaico Environmental Sanitation Finished 5,226 — 5,226 — - 5,226 — Wastewater Treatment Plant Finished 982 — 982 — - 982 — Environment Materials Finished 4,822 — 4,822 — - 4,822 — Outsourced Services Finished 53,970 — 53,970 — - 53,970 — Waste Management Finished 13,999 — 13,999 — - 13,999 — Sierra Gorda Campaigns and Studies Finished 42,959 — 42,959 — - 42,959 — Environmental Sanitation Finished 3,300 — 3,300 — - 3,300 — Wastewater Treatment Plant Finished 127 — 127 — - 127 — Waste Management Finished 1,613 — 1,613 — - 1,613 — Chañares Campaigns and Studies Finished 7,981 — 7,981 — - 7,981 — Environmental Sanitation Finished 5,262 — 5,262 — - 5,262 — Wastewater Treatment Plant Finished 5,591 — 5,591 — - 5,591 — Waste Management Finished 1,678 — 1,678 — - 1,678 — Lalackama Environmental Sanitation Finished 7,091 — 7,091 — - 7,091 — Empresa Electrica Panguipulli S.A. Wastewater Treatment Plant Finished 3,273 — 3,273 — - 3,273 — Pilmaiquen Waste Management Finished 1,450 — 1,450 — - 1,450 — Environmental Sanitation Finished 6,822 — 6,822 — - 6,822 — Waste Management Finished 785 — 785 — - 785 — Pullinque Campaigns and Studies Finished 2,627 — 2,627 — - 2,627 — Environmental Sanitation Finished 4,129 — 4,129 — - 4,129 — Environment Materials Finished 394 — 394 — - 394 — Talinay Poniente Campaigns and Studies Finished 46,026 — 46,026 — - 46,026 — Waste Management Finished 10,745 — 10,745 — - 10,745 — Parque Eolico Tal Tal SpA Taltal Campaigns and Studies Finished 44,656 — 44,656 — - 44,656 — Environmental Sanitation Finished 2,476 — 2,476 — - 2,476 — Wastewater Treatment Plant Finished 2,515 — 2,515 — - 2,515 — Waste Management Finished 11,546 — 11,546 — - 11,546 — Parque Eolico Valle de Los Vientos SpA Valle de los Vientos Campaigns and Studies Finished 20,216 — 20,216 — - 20,216 — Environmental Sanitation Finished 2,471 — 2,471 — - 2,471 — Waste Management Finished 11,865 — 11,865 — - 11,865 — Parque Eolico Talinay Oriente S.A. Talinay Oriente Campaigns and Studies Finished 63,666 — 63,666 — - 63,666 — Environmental Sanitation Finished 9,419 — 9,419 — - 9,419 — Wastewater Treatment Plant Finished 1,738 — 1,738 — - 1,738 — Waste Management Finished 10,087 — 10,087 — - 10,087 — Almeyda Solar Spa Diego de Almagro Environmental Sanitation Finished 5,216 — 5,216 — - 5,216 — Wastewater Treatment Plant Finished 6,040 — 6,040 — - 6,040 — Total 16,132,535 6,245,845 9,886,690 3,078,356 - 19,210,891 12,494,852 12-31-2018 12-31-2017 Company Incurring the Cost Name Project Project Status Total Amounts Expenses Disbursement Estimated Total Total Disbursement from the previous year Empresa Electrica Pehuenche S.A. Hydroelectric Central Environmental Expenditures C.H. Pehuenche E E Pehuenche S.A. Supply of flow measurement equipment. In progress 48,574 48,574 — — — 48,574 6,787 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste at hydroelectric power stations (HPS), thermoelectric power stations and combine cycle power stations. In progress 62,560 — 62,560 — 62,560 — Enel Distribución Chile S.A. Vegetation Control In Redesat It consists of cutting branches until the safety conditions to which the foliage must be left with respect to the drivers. In progress 134,394 — 134,394 19,654 154,048 306,419 Pruning of trees near the medium voltage network In progress 5,790,042 2,472,768 3,317,274 502,599 31-03-2019 6,292,641 Management Respel Dangerous waste management Finished 1,780 — 1,780 — 30-06-2018 1,780 Environmental management in Ssee The service consists of the maintenance of green areas with replacement of species and turf in Enel substations enclosures Finished 15,383 — 15,383 36,633 31-12-2018 52,016 The service consists in the weeding and control of weeds in electric power substations in order to keep the enclosures free of weeds, ensuring a good operation of these facilities. In progress 46,339 — 46,339 568 31-03-2018 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 31-03-2019 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 31-03-2019 392,475 IMPROVEMENTS IN THE MT NETWORK Network replacement for weardown MT protected cable In progress 158,086 158,086 - 18,056 31-03-2019 176,142 CHANGE OF TRAD X CALPE NETWORK Traditional network replacement by Calpe (Pre-assembled aluminum cable) BT In progress 851,792 851,792 - 530,712 31-03-2019 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 31-03-2019 1,008,416 REPLACE TRIFAS TRANSFORMERS MEJ QUALITY BT Replacement of transformers with chargeability problems 1,288,155 1,288,155 — 1,353,909 31-03-2019 2,642,064 ENVIRONMENTAL MANAGEMENT Environmental Management of Reforestation in Cerro Chena and Metropolitan Park. 5,831 - 5,831 803 31-03-2019 6,634 Removal of Asbestos from Underground Cables Removal of flame retardant tape with asbestos from the underground network MT. In progress 265,577 146,300 119,277 118,337 31-03-2019 383,914 203,724 GasAtacama Chile Environmental monitoring Environmental monitoring with SK Ecología operation and maintenance CEMS. In progress 797,543 — 797,543 — 797,543 1,463,204 Standardization Cems Normalización bodegas, gestión ambiental. In progress 645,302 645,302 — — 645,302 1,021,630 Hydraulic power stations Waste management and sanitation In progress 11,567 - 11,567 11,567 Enel Generación Chile S.A. ENVIRONMENTAL EXPENSES CC.TT. The main expenses incurred are: Bocamina U1-2: Operation and maintenance monitoring of air and meteorological quality stations, Environmental audit, monitoring network 1 a year, Annual CEMS Validation, Biomass Protocol Service, Environmental Materials (magazine, books), Isokinetic Measurements , SGI Works (Objective NC, inspections, audits and inspection) ISO 14001, OHSAS certification, Operation and Maintenance Service CEMS. In progress 2,102,056 — 2,102,056 — 2,102,056 1,252,355 Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in thermoelectric plants (C.T.) In progress 2,867,523 — 2,867,523 — 2,867,523 251,277 ENVIRONMENTAL EXPENSES CC.HH. Studies, monitoring, laboratory analysis, removal and final disposal of solid waste in hydroelectric power plants (C.H.) In progress 183,156 — 183,156 — 183,156 870,281 C.H. Ralco Plan Ralco: Reforestation according to Agreement with the Catholic University and Electrification of housing in Ayin Maipu In progress 4,542,216 4,542,216 — — 4,542,216 5,075,137 Central Quintero CEMS Central Quinteros In progress 417,194 417,194 — — 417,194 1,290,133 Total 20,968,708 11,304,025 9,664,683 3,255,494 24,224,202 11,740,947

Summarized Financial Informat_2

Summarized Financial Information of Subsidiaries (Tables)	12 Months Ended
	Dec. 31, 2019
SUMMARIZED FINANCIAL INFORMATION OF SUBSIDIARIES
Summary of Financial Information on Subsidiaries	As of December 31, 2019 and 2018, summarized financial information of our principal subsidiaries is as follows: December 31, 2019 Type of Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Liabilities Revenues Raw Materials and Contribution Gross Operating Income Operating Financial Income Income Profit 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$ Enel Distribución Chile Group 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 del Sur 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 Enel Green Power Group 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 Enel Generación Chile Group 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 GasAtacama Chile S.A. Group Consolidated - - - - - -54061747 -107102417 -103917448 -47841224 -4396031 (52,237,255) December 31, 2018 Type of Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Liabilities Revenues Raw Materials and Contribution Gross Operating Income Operating Financial Income Income Profit 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$ Enel Distribución Chile Group 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 3,273,224,602 569,928,285 938,139,971 1,765,156,347 3,273,224,603 1,454,348,386 (1,051,644,602) 402,703,784 300,148,133 226,154,177 (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 46,238,191 140,275,039 230,972,614 162,768,188 (21,539,174) 141,229,014 135,558,558 128,068,159 224,543 128,348,399 (34,669,191) 93,679,208 — 93,679,208 Enel Green Power Chile Ltda. Separate 162,710,963 669,741,595 832,452,558 113,123,832 125,240,941 594,087,786 832,452,559 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) 39,777,323 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) 73,449,346 60,053,812 37,537,228 (24,991,814) 12,545,413 (3,455,173) 9,090,240 34,497,623 43,587,863 Enel Green Power Group 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 Enel Generación Chile Group 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 GasAtacama Chile S.A. Group 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) 87,093,211 (5,273,886) 81,819,325 December 31, 2017 Type of Financial Current Non-Current Total Assets Current Non-Current Equity Total Equity and Revenues Raw Materials and Contribution Gross Operating Income Operating Financial Income Income Profit 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$ Enel Distribución Chile Group Consolidated 261,378,069 893,633,580 1,155,011,649 408,687,866 61,965,918 684,357,865 1,155,011,649 1,333,027,456 (1,062,076,645) 270,950,811 177,188,798 132,510,164 6,411,839 139,079,732 (34,030,322) 105,049,408 1,515,176 106,564,584 Enel Generación Chile S.A. Separate 590,543,532 2,602,962,586 3,193,506,118 489,875,667 891,083,155 1,812,547,296 3,193,506,118 1,629,277,585 (1,140,707,431) 488,570,154 364,131,027 285,498,271 (37,647,691) 528,254,308 (60,153,339) 468,100,969 72,617,351 540,718,320 Enel Distribucion Chile S.A. Separate 257,229,219 887,681,380 1,144,910,599 393,273,852 61,523,557 690,113,190 1,144,910,599 1,330,023,450 (1,060,875,186) 269,148,264 176,635,873 133,340,940 5,252,070 138,806,087 (35,037,127) 103,768,960 1,543,151 105,312,110 Empresa Eléctrica Pehuenche S.A. Separate 35,369,243 186,760,346 222,129,589 38,310,560 48,261,590 135,557,439 222,129,589 152,501,383 (36,289,330) 116,212,053 110,957,039 103,556,904 (395,231) 103,206,672 (26,346,081) 76,860,591 — 76,860,591 Enel Generación Chile Group Consolidated 662,804,359 2,891,657,830 3,554,462,189 543,356,500 1,022,091,737 1,989,013,952 3,554,462,189 1,634,937,088 (903,978,007) 730,959,081 581,142,074 463,860,015 (36,610,248) 537,641,733 (112,099,519) 425,542,214 67,663,516 493,205,730 GasAtacama Chile S.A. Group Consolidated 182,143,224 611,319,090 793,462,314 75,370,131 83,894,880 634,197,303 793,462,314 307,272,380 (170,752,796) 136,519,584 106,213,750 70,509,184 1,432,674 80,142,531 (25,417,139) 54,725,392 (3,338,115) 51,387,277

Appendix 1 Details of Assets _2

Appendix 1 Details of Assets and Liabilities in Foreign Currency (Tables)	12 Months Ended
	Dec. 31, 2019
APPENDIX 1 DETAILS OF ASSETS AND LIABILITIES IN FOREIGN CURRENCY
Summary of Assets and Liabilities Denominated in Foreign Currencies	The detail of assets and liabilities denominated in foreign currency is as follows: 12-31-2019 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 - 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 3,678,912,343 1,638,296,993 7,763,853 - - - 5,360,319,624 Investment property - 6,795,155 - - - - - 6,795,155 Deferred tax assets - 6,530,201 15,318,038 - - - - 21,848,239 TOTAL NON CURRENT ASSETS 35,403,385 4,887,329,189 1,909,279,077 7,763,853 - - - 6,839,775,504 TOTAL ASSETS 36,164,168 5,787,845,364 - 1,993,773,260 - 31,809,547 - 833,336 - 7,096,519 - 465,970 - 7,857,988,164 0 12-31-2018 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 - 222,434,412 16,575,872 103,847 - 6,057,793 - 245,171,924 Other current financial assets 689,145 644,618 38,969,410 - - - - 40,303,173 Other current non-financial assets 816,871 17,838,717 2,832,782 - - 917,718 - 22,406,088 Trade and other current receivables - 474,941,686 3,193,959 3,905 - 30,517 - 478,170,067 Current accounts receivable from related parties - 20,673,951 6,997,861 26,475,919 - - 23,329 54,171,060 Inventories - 52,510,509 4,451,134 - - - - 56,961,643 Current tax assets - 99,614,294 3,678 - - 145,845 - 99,763,817 TOTAL CURRENT ASSETS 1,506,016 888,658,187 73,024,696 26,583,671 - 7,151,873 23,329 996,947,772 NON-CURRENT ASSETS Other non-current financial assets 689,145 2,352,896 4,227,628 - - - - 7,269,669 Other non-current non-financial assets - 44,390,009 - - - 218,003 - 44,608,012 Trade and other non-current receivables 10,005,806 33,425,943 17,074,839 - - 21,255 - 60,527,843 Non-current accounts receivable from related parties - - - - - - - - Investments accounted for using the equity method - 9,520,350 3,052,983 - - 300,198 - 12,873,531 Intangible assets other than goodwill - 70,247,490 44,865,424 - - 259,479 - 115,372,393 Goodwill - 907,404,478 7,640,247 - - - - 915,044,725 Property, plant and equipment - 3,769,310,697 1,523,774,815 - - 15,562,121 - 5,308,647,633 Investment property - 7,557,356 - - - - 7,557,356 Deferred tax assets - 1,115,799 18,055,431 - - - - 19,171,230 TOTAL NON CURRENT ASSETS 10,694,951 4,845,325,018 1,618,691,367 - - 16,361,056 - 6,491,072,392 TOTAL ASSETS 12,200,967 5,733,983,205 1,691,716,063 26,583,671 - 23,512,929 23,329 7,488,020,164 12-31-2019 LIABILITIES U.F. Chilean Peso U.S. dollar Euro Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 35,217,441 20,005 178,791,077 628,053 - Trade and other current payables 5,215,585 523,504,426 66,209,531 4,333,666 - Current accounts payable to related parties - 38,133,907 11,910,024 109,765,956 - Other current provisions - 4,065,965 - - - Current tax liabilities - 17,940,784 55,049 - - Other current non-financial liabilities 254,084 38,929,298 2,933,274 3,391,727 - TOTAL CURRENT LIABILITIES 40,687,110 622,594,385 259,898,955 118,119,402 - 1,041,299,852 NON-CURRENT LIABILITIES Other non-current financial liabilities 301,707,185 68,922 1,431,324,011 7,069,801 - Trade and other non-current payables - 27,661 56,222,424 - - Non-current accounts receivable to related parties - - 486,839,483 297,534,001 - Other long-term provisions - 155,315,044 16,545,238 - - Deferred tax liabilities - 161,017,178 88,267,463 - - Non-current provisions for employee benefits - 65,531,375 632,115 - - Other non-current non-financial liabilities - 1,302,759 - - - TOTAL NON-CURRENT LIABILITIES 301,707,185 383,262,939 2,079,830,734 304,603,802 - 3,069,404,660 TOTAL LIABILITIES 342,394,295 1,005,857,324 2,339,729,689 422,723,204 - 4,110,704,512 12-31-2018 LIABILITIES U.F. Chilean Peso U.S. dollar Euro Argentine Peso Total ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ CURRENT LIABILITIES Other current financial liabilities 32,142,094 212,736,911 165,786,810 - - Trade and other current payables 3,598,849 503,689,338 44,138,753 2,347,924 511,460 Current accounts payable to related parties - 74,991,622 324,743 82,619,960 - Other current provisions - 5,551,609 12,510 - 24,667 Current tax liabilities - 17,243,717 22,626 - 411,577 Other current non-financial liabilities - 68,532,059 2,766,862 - 10,061 TOTAL CURRENT LIABILITIES 35,740,943 882,745,256 213,052,304 84,967,884 957,765 1,217,464,152 NON-CURRENT LIABILITIES Other non-current financial liabilities 297,118,435 - 1,408,715,068 - - Trade and other non-current payables - 2,553,056 31,124 - - Non-current accounts receivable to related parties - - 447,193,802 - - Other long-term provisions - 93,478,990 12,392,385 - - Deferred tax liabilities - 203,349,899 74,730,155 - - Non-current provisions for employee benefits - 56,070,439 532,225 - - Other non-current non-financial liabilities - 226,653 - - - TOTAL NON-CURRENT LIABILITIES 297,118,435 355,679,037 1,943,594,759 - - 2,596,392,231 TOTAL LIABILITIES 332,859,378 1,238,424,293 2,156,647,063 84,967,884 957,765 3,813,856,383

Appendix 2 Additional Informa_2

Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 (Tables)	12 Months Ended
	Dec. 31, 2019
TRADE AND OTHER RECEIVABLES.
Summary of Aging of Trade and Other Receivables	· Trade and other receivables by aging: As of December 31, 2019 Current 1-30 days 31-60 61-90 91-120 121-150 151-180 181-210 211-250 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) (34,055,770) (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 43,836,460 — — — — — — — — 9,883,938 53,720,398 3,734,116 Impairment provision (55,690) — — — — — — — — (9,883,938) (9,939,628) — Total 445,500,892 32,102,797 7,445,293 4,113,180 2,320,709 1,908,418 2,233,138 1,253,184 1,396,602 13,181,117 511,455,330 313,574,385 As of December 31, 2018 Current 1-30 31-60 days 61-90 91-120 121-150 151-180 181-210 211-250 More than Total Total Non- Trade and Other Receivables ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Trade receivables, gross 360,967,952 26,520,834 8,065,762 3,947,386 2,096,447 1,400,998 1,945,691 1,528,489 2,863,502 47,716,556 457,053,617 2,046,845 Allowance for doubtful accounts (1,309,684) (244,773) (260,401) (317,546) (419,163) (523,349) (584,135) (634,104) (2,085,824) (32,747,456) (39,126,435) — Other receivables, gross 60,242,885 — — — — — — — — 10,353,445 70,596,330 58,480,998 Allowance for doubtful accounts — — — — — — — — — (10,353,445) (10,353,445) — Total 419,901,153 26,276,061 7,805,361 3,629,840 1,677,284 877,649 1,361,556 894,385 777,678 14,969,100 478,170,067 60,527,843
Summary of Trade and Other Receivables by Type of Portfolio	· By type of portfolio: December 31, 2019 December 31, 2018 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 Aging of balances Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Customers ThCh$ Current 1,340,828 469,633,677 36,952 116,079,889 1,377,780 585,713,566 1,370,536 353,865,825 42,898 9,101,666 1,413,434 362,967,491 1 to 30 days 433,225 30,871,310 21,280 1,588,701 454,505 32,460,011 390,536 25,894,683 19,304 626,151 409,840 26,520,834 31 to 60 days 106,521 7,630,607 8,018 298,708 114,539 7,929,315 83,029 7,864,638 6,649 201,124 89,678 8,065,762 61 to 90 days 17,349 4,363,345 2,080 336,938 19,429 4,700,283 14,466 3,827,182 2,014 120,204 16,480 3,947,386 91 to 120 days 11,084 2,852,961 1,661 144,836 12,745 2,997,797 7,515 2,007,221 1,182 89,226 8,697 2,096,447 121 to 150 days 5,819 2,510,766 1,256 243,600 7,075 2,754,366 4,393 1,266,995 892 134,003 5,285 1,400,998 151 to 180 days 3,962 2,863,659 544 174,046 4,506 3,037,705 3,007 1,697,721 459 247,970 3,466 1,945,691 181 to 210 days 3,647 2,571,731 377 95,368 4,024 2,667,099 2,805 1,446,409 311 82,080 3,116 1,528,489 211 to 250 days 2,677 2,421,028 342 89,655 3,019 2,510,683 3,237 2,772,883 311 90,619 3,548 2,863,502 More than 251 days 114,518 46,531,813 6,517 705,074 121,035 47,236,887 20,876 47,255,348 5,769 508,514 26,645 47,763,862 Total 2,039,630 572,250,897 79,027 119,756,815 2,118,657 692,007,712 1,900,400 447,898,905 79,789 11,201,557 1,980,189 459,100,462
Summary of Portfolio in Default and in Legal Collection Process of Notes Receivable	a) Portfolio in default and in legal collection process As of December 31, 2019 2018 Number of Amount Number of Amount Portfolio in Default and in Legal Collection Process Customers ThCh$ Customers ThCh$ Notes receivable in default 1,888 258,073 1,876 258,372 Notes receivable in legal collection process (*) 1,287 6,313,513 2,238 10,450,383 Total 3,175 6,571,586 4,114 10,708,755 (*)
Summary of Provisions and Write-offs Portfolio	c) Provisions and write-offs As of December 31, 2019 2018 Provisions and Write-offs ThCh$ ThCh$ Provision for non-renegotiated portfolio 4,403,135 2,318,330 Provision for renegotiated portfolio 5,643,865 2,461,643 Recoveries of the period — 3,099 Total 10,047,000 4,783,072
Summary of Number and Value of Operations	d) Number and value of operations December 31, 2019 December 31, 2018 Total detail by Total detail by Total detail by Total detail by Number and Value of Operations Last Quarter Year-to-date Last Quarter Year-to-date Impairment provisions and recoveries: Number of operations 52,870 88,750 7,357 19,810 Value of operations, in ThCh$ 2,451,690 10,047,000 1,596,443 4,783,072
Trade Receivables by Aging	· Trade receivables by aging: December 31, 2019 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 More than Total Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION Non-renegotiated portfolio 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 customers 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 — 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 86,403,772 DISTRIBUTION Non-renegotiated portfolio 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 3,635,526 287,518,186 105,563,157 - Mass-market customers 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 customers 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 customers 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 — 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 36,006,951 145,777,617 105,563,157 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 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 Net Portfolio 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 December 31, 2018 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 More than Total Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION Non-renegotiated portfolio 206,893,035 1,155,988 1,453,308 708,552 203,487 7,836 39,787 483,751 153,929 1,300,506 5,415,159 217,815,338 21,255 - Large customers 198,424,050 671,037 248,135 140,571 224 7,274 39,001 43,681 56,046 787,999 5,047,281 205,465,299 — - Institutional customers — — — — — — — — — — — — — - Others 8,468,985 484,951 1,205,173 567,981 203,263 562 786 440,070 97,883 512,507 367,878 12,350,039 21,255 Allowance for impairment (21,736) — — — — — — — — — (1,505,948) (1,527,684) — Unbilled services 165,128,644 — — — — — — — — — — 165,128,644 — Billed services 41,764,391 1,155,988 1,453,308 708,552 203,487 7,836 39,787 483,751 153,929 1,300,506 5,415,159 52,686,694 21,255 DISTRIBUTION Non-renegotiated portfolio 154,074,917 25,364,846 6,612,454 3,238,834 1,892,960 1,393,162 1,905,904 1,044,738 2,709,573 4,596,217 36,404,674 239,238,279 2,025,590 - Mass-market customers 108,952,722 16,661,831 3,571,670 1,427,141 1,076,288 850,571 715,174 531,508 2,195,894 1,759,264 23,737,029 161,479,092 2,000,955 - Large customers 38,529,866 6,924,749 1,662,569 1,225,278 102,522 475 918,487 124,385 164,424 1,619,025 6,326,539 57,598,319 24,635 - Institutional customers 6,592,329 1,778,266 1,378,215 586,415 714,150 542,116 272,243 388,845 349,255 1,217,928 6,341,106 20,160,868 — Allowance for impairment (1,287,948) (244,773) (260,401) (317,546) (419,163) (523,349) (584,135) (634,104) (2,085,824) (2,255,798) (28,985,710) (37,598,751) — Unbilled services 92,576,381 — — — — — — — — — — 92,576,381 — Billed services 61,498,536 25,364,846 6,612,454 3,238,834 1,892,960 1,393,162 1,905,904 1,044,738 2,709,573 4,596,217 36,404,674 146,661,898 2,025,590 Total Gross Portfolio 360,967,952 26,520,834 8,065,762 3,947,386 2,096,447 1,400,998 1,945,691 1,528,489 2,863,502 5,896,723 41,819,833 457,053,617 2,046,845 Total allowance for impairment (1,309,684) (244,773) (260,401) (317,546) (419,163) (523,349) (584,135) (634,104) (2,085,824) (2,255,798) (30,491,658) (39,126,435) — Total Net Portfolio 359,658,268 26,276,061 7,805,361 3,629,840 1,677,284 877,649 1,361,556 894,385 777,678 3,640,925 11,328,175 417,927,182 2,046,845
Trade Receivables by Type of Portfolio	· By type of portfolio: December 31, 2019 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 Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION 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 December 31, 2018 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 Current Portfolio Total Non- Type of Portfolio ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ GENERATION Non-renegotiated portfolio 206,862,868 1,155,988 1,453,308 708,552 203,487 7,836 39,787 483,751 153,929 6,715,665 217,785,171 — - Large customers 198,424,050 671,037 248,135 140,571 224 7,274 39,001 43,681 56,046 5,835,279 205,465,298 — - Institutional customers — — — — — — — — — — — — - Others 8,438,818 484,951 1,205,173 567,981 203,263 562 786 440,070 97,883 880,386 12,319,873 — Renegotiated portfolio 30,167 — — — — — — — — — 30,167 21,255 - Large customers — — — — — — — — — — — — - Institutional customers — — — — — — — — — — — — - Others 30,167 — — — — — — — — — 30,167 21,255 DISTRIBUTION Non-renegotiated portfolio 146,934,065 24,738,695 6,411,330 3,118,630 1,803,734 1,259,159 1,657,934 962,658 2,618,954 40,492,377 229,997,536 116,198 - Mass-market customers 101,990,338 16,096,927 3,374,622 1,306,937 987,071 716,568 577,969 449,428 2,105,275 25,035,379 152,640,514 116,198 - Large customers 38,401,049 6,873,601 1,662,570 1,225,278 102,522 475 918,487 124,385 164,424 7,898,789 57,371,580 — - Institutional customers 6,542,678 1,768,167 1,374,138 586,415 714,141 542,116 161,478 388,845 349,255 7,558,209 19,985,442 — Renegotiated portfolio 7,140,852 626,151 201,124 120,204 89,226 134,003 247,970 82,080 90,619 508,514 9,240,743 1,909,392 - Mass-market customers 6,962,383 564,903 197,048 120,204 89,217 134,003 137,205 82,080 90,619 460,914 8,838,576 1,884,757 - Large Customers 128,817 51,148 — — — — — — — 46,775 226,740 24,635 - Institutional Customers 49,652 10,100 4,076 — 9 — 110,765 — — 825 175,427 — Total Gross Portfolio 360,967,952 26,520,834 8,065,762 3,947,386 2,096,447 1,400,998 1,945,691 1,528,489 2,863,502 47,716,556 457,053,617 2,046,845
Summary of Estimated Sales and Purchases of Energy and Capacity	12-31-2019 12-31-2018 Energy and Capacity Tolls Energy and Capacity Tolls STATEMENT OF FINANCIAL POSITION ThCh$ ThCh$ ThCh$ ThCh$ Trade and other current receivables 310,301,370 13,929,209 209,288,934 46,336,070 Total Estimated Assets 310,301,370 13,929,209 209,288,934 46,336,070 Trade and other current payables 125,130,599 20,059,576 106,633,306 37,530,511 Total Estimated Liabilities 125,130,599 20,059,576 106,633,306 37,530,511 12-31-2019 12-31-2018 Energy and Capacity Tolls Energy and Capacity Tolls INCOME STATEMENT ThCh$ ThCh$ ThCh$ ThCh$ Energy Sales 310,301,370 13,929,209 209,288,934 46,336,070 Energy Purchases 125,130,599 20,059,576 106,633,306 37,530,511

Appendix 3 Details of Due Dat_2

Appendix 3 Details of Due Dates of Payments to Suppliers (Tables)	12 Months Ended
	Dec. 31, 2019
APPENDIX 3 DETAILS OF DUE DATES OF PAYMENTS TO SUPPLIERS
Summary of Details of Due Dates of Payments to Suppliers	This appendix forms an integral part of these consolidated financial statements. December 31, 2019 December 31, 2018 Goods Services Other Total Goods Services Other Total Suppliers with Current Payments ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Up to 30 days 101,666,302 148,397,518 121,111,092 371,174,912 45,355,153 230,133,777 78,973,248 354,462,178 From 31 to 60 days 5,579,618 71,069,622 219,965 76,869,205 4,284,025 19,179,502 71,745,150 95,208,677 From 61 to 90 days 9,045,950 1,118,102 11,177,955 21,342,007 16,452,406 — — 16,452,406 From 91 to 120 days — — — — — — — — From 121 to 365 days 48,102,870 — — 48,102,870 — — — — More than 365 days — 487 56,222,424 56,222,911 — 6,766 2,106,099 2,112,865 Total 164,394,740 220,585,729 188,731,436 573,711,905 66,091,584 249,320,045 152,824,497 468,236,126 December 31, 2019 December 31, 2018 Goods Services Other Total Goods Services Other Total Suppliers details ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ Suppliers for energy purchase - - - Suppliers for fuel and gas purchases - - - - Accounts payable for goods and services - - Accounts payable for asset purchases - - Total

Background and Business Activ_2

Background and Business Activities (Detail) - employee	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of General Information About Financial Statements [Line Items]
Number of employees	2,148	2,062
Average number of employees	2,142	2,096
Enel S.p.A. [member]
Disclosure Of General Information About Financial Statements [Line Items]
Ownership interest	61.93%

Basis of Presentation of the _3

Basis of Presentation of the Consolidated Financial Statements - IFRS 16 Leases Narrative (Detail) - IFRS 16 [Member] - CLP ($) $ in Thousands	Jan. 01, 2019	Dec. 31, 2019
Disclosure of initial application of standards or interpretations [line items]
Increase in non-current and current liabilities	$ 28,814,142
Weighted average of the incremental borrowing rate used to record lease liabilities	5.50%
Increase in financial expenses associated with new lease liabilities		$ 1,191,645
Increase in depreciation associated with the right of use assets		$ 2,347,661

Basis of Presentation of the _4

Basis of Presentation of the Consolidated Financial Statements - IFRS 16 Leases (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of initial application of standards or interpretations [line items]
Minimum future payments of operating leases		$ 47,415,134
IFRS 16 [Member]
Disclosure of initial application of standards or interpretations [line items]
Effect of the discount at the incremental borrowing rate	$ (18,027,491)
Minimum payments for short-term leases, at the transition date	(573,501)
Lease liabilities	$ 28,814,142

Basis of Presentation of the _5

Basis of Presentation of the Consolidated Financial Statements - Schedule of Ownership (Detail)	Apr. 02, 2018	Apr. 01, 2018	Dec. 31, 2019	Dec. 31, 2018
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%
Enel Distribucion Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			99.09%	99.09%
Ownership interest			99.09%	99.09%
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%
Enel Generación Chile S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			93.55%	93.55%
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 direct ownership				2.63%
Percentage of indirect ownership				97.37%
Ownership interest				100.00%
Gasoducto Atacama Argentina S A [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of indirect ownership				100.00%
Ownership interest				100.00%
Luz Andes 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%
Sociedad Agricola de Cameros Ltda. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			57.50%	57.50%
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%	99.99%
Ownership interest			99.99%	99.99%
Empresa Electrica Panguipulli S .A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			0.04%	0.04%
Percentage of indirect ownership			99.96%	99.96%
Ownership interest			100.00%	100.00%
Diego de Almagro Matriz 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%	0.01%
Percentage of indirect ownership			99.99%	99.99%
Ownership interest			100.00%	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 Valle De Los Vientos S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			0.01%	0.01%
Percentage of indirect ownership			99.99%	99.99%
Ownership interest			100.00%	100.00%
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%
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%
Enel Green Power Del Sur S P 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%
Enel X Chile SpA [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Percentage of direct ownership			100.00%	100.00%
Ownership interest			100.00%	100.00%

Basis of Presentation of the _6

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 _7

Basis of Presentation of the Consolidated Financial Statements – Investments in Associates (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
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%

Basis of Presentation of the _8

Basis of Presentation of the Consolidated Financial Statements – Joint Arrangements (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Aysen Energia S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Direct	0.00%	0.00%
Indirect		51.00%
Total		51.00%
Aysen Transmision S.A. [Member]
Statement Of Compliance And Basis Of Presentation [Line Items]
Direct	0.00%	0.00%
Indirect		51.00%
Total		51.00%
Transmisora Electrica de Quillota Ltda. [Member]
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 _9

Basis of Presentation of the Consolidated Financial Statements – Basis of consolidation and business combinations (Detail)	12 Months Ended
	Dec. 31, 2019
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

Accounting Policies - Estimated

Accounting Policies - Estimated Useful Lives of Property, Plant and Equipment (Detail)	12 Months Ended
	Dec. 31, 2019
Renewable Energy Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	20 years
Pipelines [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	20 years
Bottom of Range [Member] | Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	10 years
Bottom of Range [Member] | Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	6 years
Bottom of Range [Member] | IT Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	3 years
Bottom of Range [Member] | Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	2 years
Bottom of Range [Member] | Motor Vehicles [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	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 lives	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 lives	10 years
Bottom of Range [Member] | Fuel Oil /Coal - Fired Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	20 years
Bottom of Range [Member] | Combined Cycle Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	10 years
Bottom of Range [Member] | High-Voltage Network [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	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 lives	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 lives	10 years
Bottom of Range [Member] | Primary Substations [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	6 years
Top of Range [Member] | Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	60 years
Top of Range [Member] | Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	65 years
Top of Range [Member] | IT Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	15 years
Top of Range [Member] | Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	35 years
Top of Range [Member] | Motor Vehicles [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	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 lives	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 lives	45 years
Top of Range [Member] | Fuel Oil /Coal - Fired Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	40 years
Top of Range [Member] | Combined Cycle Power Plants [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	25 years
Top of Range [Member] | High-Voltage Network [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	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 lives	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 lives	50 years
Top of Range [Member] | Primary Substations [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	25 years

Accounting Policies - Additiona

Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019
Cash flow hedge [Member]
Accounting Policies [Line Items]
Cash flow projection period	P10Y
Impairment of non-financial assets [Member]
Accounting Policies [Line Items]
Cash flow projection period	P5Y
Bottom of Range [Member]
Accounting Policies [Line Items]
Net income 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%
Pre-tax discount rates	7.70%
Top of Range [Member] | Impairment of non-financial assets [Member]
Accounting Policies [Line Items]
Growth rate used to extrapolate cash flow projections	3.00%
Pre-tax discount rates	10.70%
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	1 Months Ended				12 Months Ended
	Nov. 30, 2017$ / MWhGWhTWhcompanyitem	Jul. 31, 2016$ / MWhGWhTWhcompanyitem	Oct. 31, 2015item	Oct. 31, 2015GWh	Dec. 31, 2019USD ($)kilovoltsTWhitemkW
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%
Term of tariff setting process					4 years
Annual Value of Transmission, minimum discount rate					7.00%
Number of years of revenue 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 VAD					4 years
Number of cycles of tariff settings since the enactment of the General Electric Services Law in 1982 | item					8
Maximum amount of account receivable generated | $					$ 1,350
Number of energy blocks awarded | item	5	5
Energy blocks awarded unit | GWh	2,200	12.4		1.2
Number of companies | company	5	84
Weighted price of energy	32.5	47.6	3	79.3
Energy awarded unit per year | TWh					5.8
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 unregulated customers					5,000
Connected capacity to have option to contract energy at agree prices					500
Term of agreed upon price for regulated customers					4 years
Profitability 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 to have option to contract energy at agree prices					5,000
Electricity supplied to end customers, voltage | kilovolts					23
Profitability margin range					8.00%
Differential rate allowed from the rate defined by the CNE					2.00%

Non-Current Assets or Disposa_2

Non-Current Assets or Disposal Groups Classified as Held For Sale (Detail) - Electrogas S.A. [Member] $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2017CLP ($)
Disclosure Of Noncurrent Assets And Disposal Groups Classified As Held For Sale [Line Items]
Percentage of total ownership interest	42.50%	42.50%
Amount of sale of subsidiary	$ 180	$ 115,582,806
Proceeds from disposal of non-current assets or disposal groups classified as held for sale per tax gain and discontinued operations		$ 105,311,912

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, 2019	Dec. 31, 2018
Disclosure of detailed information about business combination [line items]
Issued capital			$ 1,891,727,278,668		$ 3,882,103,470,000	$ 3,954,491,479,000
New common shares issued			23,069,844,862
Revenue of combined entity as if combination occurred at beginning of period						71,072,559,000
Profit (loss) of combined entity as if combination occurred at beginning of period						43,360,620,000
Enel Green Power Latin America S.A. [Member]
Disclosure of detailed information about business combination [line items]
Revenue of acquiree since acquisition date						52,892,734,000
Profit (loss) of acquiree since acquisition date						$ 30,471,438,000
Enel Generación Chile S.A. [Member]
Disclosure of detailed information about business combination [line items]
Ownership interest in subsidiary				60.00%
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%
Subscription price per share under preemptive rights offering					$ 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 consideration paid used to subscribe share					$ 236
Tender Offer consideration paid 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 consideration paid used to subscribe share					7,080
Tender Offer consideration paid 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 current receivables	27,414,273
Current accounts 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 non-current receivables	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	(49,109,886)
Current accounts payable 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 recognised as of acquisition date	(58,067,689)
Provisions for non-current employee benefits	(603,109)
Net identifiable assets acquired	$ 739,030,509

Argentina's Hyperinflationary_3

Argentina's Hyperinflationary Economy (Detail)	18 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Hyperinflationary Reporting [Line Items]
General price index	53.64	47.83	85.52
IAS 29
Disclosure of Hyperinflationary Reporting [Line Items]
Cumulative inflation rate period	3 years
Cumulative inflation rate percentage	100.00%

Argentina's Hyperinflationary_4

Argentina's Hyperinflationary Economy - effect in the Consolidated Statements of Comprehensive Income (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2018
Disclosure of Hyperinflationary Reporting [Line Items]
Intangible assets other than goodwill	$ (16,906,200)	$ (60,201,489)
Property, plant and equipment	(51,671,991)	(1,722,960,496)
Equity	73,119,871	(110,050,715)	$ 323,968,015
Employee benefits expenses	129,604,956	123,130,334	121,503,777
Financial income	(27,399,275)	(19,934,468)	(21,662,688)
Financial costs	164,897,900	122,184,189	$ 53,510,882
Adoption IAS 29 [Member]
Disclosure of Hyperinflationary Reporting [Line Items]
Intangible assets other than goodwill	203	180
Property, plant and equipment	1,132,453	1,035,084
Equity	(5,805,120)	(3,743,959)
Other Services Provision	(664,454)	(1,189,452)
Other Variable Provisioning and Services	431	21,503
Employee benefits expenses	166,715	143,148
Other fixed operating expenses	127,226	147,975
Financial income	(367,059)	(268,511)
Financial costs	44,707	67,707
Result due to Hyperinflation	$ (5,364,898)	$ (3,786,325)
Credit to retained earnings, net of tax				$ 664,470

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH AND CASH EQUIVALENTS.
Cash balances	$ 31,416	$ 44,326
Bank balances	24,960,269	98,395,997
Time deposits	14,600,772	5,782,252
Other fixed-income instruments	196,092,043	140,949,349
Total	$ 235,684,500	$ 245,171,924	$ 419,456,026	$ 245,999,192

Cash and Cash Equivalents - Add

Cash and Cash Equivalents - Additional Information (Detail) - Top of Range [Member]	12 Months Ended
	Dec. 31, 2019
Disclosure Of Cash And Cash Equivalents [Line Items]
Time deposits maturity description	P3M
Other fixed-income instruments maturity description	P90D

Cash and Cash Equivalents - S_2

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents by Currency (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 235,684,500	$ 245,171,924	$ 419,456,026	$ 245,999,192
Chilean Peso [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	209,818,277	222,434,412
Argentine Peso [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	7,096,519	6,057,793
Euros [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	654,319	103,847
U.S. Dollar [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 18,115,385	$ 16,575,872

Cash and Cash Equivalents - S_3

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents Received from Sale of Shares of Associates (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017CLP ($)
CASH AND CASH EQUIVALENTS.
Amounts received for the sale of Associates	$ 115,582,806
Total	$ 115,582,806

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	$ 2,520,235,957	$ 748,709,978	$ 843,700,973
Financing Cash Flows, From	285,623,220	1,565,782,604	150,000,000
Financing Cash Flows, Used	(355,150,504)	(844,723,456)	(162,975,507)
Financing Cash Flows, Interest paid	(134,429,754)	(116,540,891)	(43,816,959)
Financing Cash Flows, Total	(203,957,038)	604,518,257	(56,792,466)
Non-Cash Changes, Acquisition of subsidiaries		715,268,615
Non-Cash Changes, Changes in fair value	46,396,434	48,389,489	(25,059,561)
Non-Cash Changes, Foreign exchange differences	148,940,339	264,754,524	(58,074,683)
Non-Cash Changes, Financial costs	136,303,028	149,852,881	49,437,310
Non-Cash Changes, New leases	37,818,654
Non-Cash Changes, Other changes	(8,375,950)	(11,257,787)	(4,501,595)
Ending Balance	2,677,361,424	2,520,235,957	748,709,978
Bank Loans [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	512,547,718	122	4,274
Financing Cash Flows, From		940,414,450
Financing Cash Flows, Used	(284,022,562)	(812,568,125)	(4,156)
Financing Cash Flows, Interest paid	(16,242,086)	(22,902,945)	(12,581)
Financing Cash Flows, Total	(300,264,648)	104,943,380	(16,737)
Non-Cash Changes, Acquisition of subsidiaries		322,301,558
Non-Cash Changes, Foreign exchange differences	24,797,525	51,622,432
Non-Cash Changes, Financial costs	15,926,293	27,929,781	12,585
Non-Cash Changes, Other changes	(4,462,601)	5,750,445
Ending Balance	248,544,287	512,547,718	122
Unsecured Obligations [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	1,505,282,083	763,579,584	802,306,160
Financing Cash Flows, From		625,368,154
Financing Cash Flows, Used	(31,300,902)	(5,654,112)	(5,530,327)
Financing Cash Flows, Interest paid	(80,892,559)	(59,362,432)	(43,514,578)
Financing Cash Flows, Total	(112,193,461)	560,351,610	(49,044,905)
Non-Cash Changes, Foreign exchange differences	99,245,420	128,056,234	(33,226,098)
Non-Cash Changes, Financial costs	85,089,982	64,400,703	43,544,427
Non-Cash Changes, Other changes	(134,121)	(11,106,048)
Ending Balance	1,577,289,903	1,505,282,083	763,579,584
Finance Leases [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	14,476,450	14,608,914	17,749,647
Financing Cash Flows, Used	(4,498,202)	(1,889,685)	(2,592,236)
Financing Cash Flows, Interest paid	(641,609)	(739,070)
Financing Cash Flows, Total	(5,139,811)	(2,628,755)	(2,592,236)
Non-Cash Changes, Foreign exchange differences	4,437,227	1,757,221	(1,359,668)
Non-Cash Changes, Financial costs	1,815,169	739,070	811,171
Non-Cash Changes, New leases	37,818,654
Ending Balance	53,407,689	14,476,450	14,608,914
Other Liabilities [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Financing Cash Flows, Used		(1,303,692)
Financing Cash Flows, Total		(1,303,692)
Non-Cash Changes, Foreign exchange differences		52,972
Non-Cash Changes, Other changes		1,250,720
Financial Derivatives for Hedging [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	40,611,925	(29,478,642)	23,640,892
Financing Cash Flows, From	1,791,715
Financing Cash Flows, Used	(33,584,639)		(3,543,399)
Financing Cash Flows, Interest paid	(5,805,822)	(3,496,889)
Financing Cash Flows, Total	(37,598,746)	(3,496,889)	(3,543,399)
Non-Cash Changes, Acquisition of subsidiaries		(5,495,214)
Non-Cash Changes, Changes in fair value	46,396,434	48,389,489	(25,059,561)
Non-Cash Changes, Foreign exchange differences	(32,145,989)	32,202,403	(23,488,917)
Non-Cash Changes, Financial costs	398,636	3,569,025	3,473,938
Non-Cash Changes, Other changes	(1,418,539)	(5,078,247)	(4,501,595)
Ending Balance	16,243,721	40,611,925	(29,478,642)
Loans to Related Parties [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Beginning balance	447,317,781
Financing Cash Flows, From	283,831,505		150,000,000
Financing Cash Flows, Used			(150,000,000)
Financing Cash Flows, Interest paid	(30,847,678)	(30,039,555)	(289,800)
Financing Cash Flows, Total	252,983,827	(30,039,555)	(289,800)
Non-Cash Changes, Acquisition of subsidiaries		398,462,271
Non-Cash Changes, Foreign exchange differences	52,606,156	51,063,262
Non-Cash Changes, Financial costs	31,328,749	29,906,460	289,800
Non-Cash Changes, Other changes	(2,360,689)	(2,074,657)
Ending Balance	781,875,824	447,317,781
Other obligations [Member]
Disclosure Of Cash And Cash Equivalents [Line Items]
Financing Cash Flows, Used	(1,744,199)	(23,307,842)	(1,305,389)
Financing Cash Flows, Total	(1,744,199)	(23,307,842)	(1,305,389)
Non-Cash Changes, Financial costs	$ 1,744,199	$ 23,307,842	$ 1,305,389

Other Financial Assets - Summar

Other Financial Assets - Summary of Other Financial Assets (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
OTHER FINANCIAL ASSETS
Financial assets at fair value with changes in results, Current	$ 0	$ 90,839
Financial assets at fair value with change in other comprehensive income, Current	127,854	269,031
Financial assets held to maturity, current	860,425	880,268
Hedging derivatives, current	322,316	39,022,012
Non-Hedging derivatives, current	0	41,023
Other current financial assets	1,310,595	40,303,173
Financial assets at fair value with changes in results, Non-current	0	0
Financial assets at fair value with change in other comprehensive income, Non-current	2,349,223	2,352,894
Financial assets held to maturity, non-current	0	689,146
Hedging derivatives, non-current	4,871,397	4,191,543
Non-Hedging derivatives non-current	0	36,086
Other non-current financial assets	$ 7,220,620	$ 7,269,669

Other Non-financial Assets an_3

Other Non-financial Assets and Liabilities - Other non-financial assets (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	$ 34,634,563	$ 22,406,088
Other non-current non-financial assets	38,050,184	44,608,012
VAT Tax Credit and Other Taxes
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	19,497,233	11,281,502
Other non-current non-financial assets	19,799,224	29,198,027
Prepaid expenses
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	12,329,859	4,711,173
Guarantee deposit
Disclosure Of Financial Assets [Line Items]
Other non-current non-financial assets	1,879,019	1,902,479
PPM water rights
Disclosure Of Financial Assets [Line Items]
Other non-current non-financial assets	7,670,114	6,544,100
Spare parts with consumption schedule over 12 months
Disclosure Of Financial Assets [Line Items]
Other non-current non-financial assets	5,773,991	4,324,153
Other
Disclosure Of Financial Assets [Line Items]
Other current non-financial assets	2,807,471	6,413,413
Other non-current non-financial assets	$ 2,927,836	$ 2,639,253

Other Non-financial Assets an_4

Other Non-financial Assets and Liabilities - Other non-financial liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	$ 45,508,383	$ 71,308,982
Other non-current non-financial liabilities	1,302,759	226,653
VAT and Other Taxes due
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	31,616,664	56,341,865
Reimbursable financial contributions
Disclosure Of Financial Liabilities [Line Items]
Other non-current non-financial liabilities	1,302,759	226,653
Splices
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	9,283,177	10,456,081
Transfer of networks
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	2,845,708	1,786,635
Products and services
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	1,088,498	1,502,411
Other
Disclosure Of Financial Liabilities [Line Items]
Other current non-financial liabilities	$ 674,336	$ 1,221,990

Trade and Other Receivables - G

Trade and Other Receivables - Gross and net amounts (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Trade And Other Receivables [Line Items]
Trade and other receivables, Current	$ 511,455,330	$ 478,170,067
Trade receivables, Current	456,552,682	417,927,182
Leasing accounts receivables, Current	11,121,878	6,101,812
Other receivables, Current	43,780,770	54,141,073
Trade and other receivables, Non-current	313,574,385	60,527,843
Trade receivables, Non-current	191,966,929	2,046,845
Leasing accounts receivables, Non-current	117,873,340	55,651,630
Other receivables, Non-current	3,734,116	2,829,368
Gross Carrying Amount [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Trade and other receivables, Current	566,919,977	527,649,947
Trade receivables, Current	500,040,783	457,053,617
Leasing accounts receivables, Current	13,158,795	6,791,579
Other receivables, Current	53,720,399	63,804,751
Trade and other receivables, Non-current	313,574,385	60,527,843
Trade receivables, Non-current	191,966,929	2,046,845
Leasing accounts receivables, Non-current	117,873,340	55,651,630
Other receivables, Non-current	$ 3,734,116	$ 2,829,368

Trade and Other Receivables - O

Trade and Other Receivables - Other net receivables (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
TRADE AND OTHER RECEIVABLES.
Other receivables, Current	$ 43,780,770	$ 54,141,073
Recoveries from insurance companies, Current	2,011,406	18,805,057
Accounts receivable from employees, Current	10,017,453	9,237,209
Advances to suppliers and creditors, Current	19,864,669	19,236,907
Others, Current	11,887,242	6,861,900
Other receivables, Non-current	3,734,116	2,829,368
Accounts receivable from employees, Non-current	3,308,861	2,426,697
Advances to suppliers and creditors, Non-current	415,787	$ 402,671
Others, Non-current	$ 9,468

Trade and Other Receivables - A

Trade and Other Receivables - Additional Information (Detail) $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)customer	Dec. 31, 2019CLP ($)customer	Dec. 31, 2018CLP ($)customer
Disclosure of disaggregation of revenue from contracts with customers [line items]
Trade and other receivables held for use		$ 0
Gross non-current increase in trade accounts receivable		189,920,084
Maximum amount of account receivable generated	$ 1,350
Decrease in revenues from energy sales		(2,600,428)
Financial expense from energy sales		14,250,887
Exchange differences due to the dollarization of accounts receivable pending for invoicing		3,835,024
Financial income		414,292
Trade receivables, Non-current		191,966,929	$ 2,046,845
Trade and other non-current payables		56,250,085	2,584,180
Trade receivables, Current		456,552,682	417,927,182
Trade and other current payables		$ 599,263,208	$ 554,286,324
Number of customers with sales representing 10% or more of revenues | customer	0	0	0
Electricity Distribution Segment [Member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Decrease in revenues from energy sales		$ (2,083,048)
Exchange differences due to the dollarization of accounts receivable pending for invoicing		2,825,769
Financial income		10,241,505
Trade receivables, Non-current		182,076,569
Trade and other non-current payables		53,941,373
Impact on lower revenues from energy sales		3,782,091
Impact on lower cost from energy purchases		1,181,163
Impact on higher revenues		5,225,739
Impact on higher financial costs		19,062,333
Profit for net exchange difference		$ 3,835,024
Trade receivables, Current			$ 48,196,306
Trade and other current payables			$ 6,718,177

Trade and Other Receivables - S

Trade and Other Receivables - Schedule of Minimum Lease Payments Receivable (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Gross Carrying Amount [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	$ 149,993,694	$ 72,030,994
Gross Carrying Amount [Member] | Less Than One Year [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	15,313,622	8,033,838
Gross Carrying Amount [Member] | One to Two Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	17,350,359	8,033,838
Gross Carrying Amount [Member] | Two to Three Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	17,350,359	8,033,838
Gross Carrying Amount [Member] | Three to Four Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	17,316,251	8,033,838
Gross Carrying Amount [Member] | Four to Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	17,271,708	7,994,153
Gross Carrying Amount [Member] | More Than Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	65,391,395	31,901,489
Interest [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	20,998,476	10,277,552
Interest [Member] | Less Than One Year [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	4,191,744	1,932,026
Interest [Member] | One to Two Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	3,919,937	1,553,584
Interest [Member] | Two to Three Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	3,630,136	1,549,927
Interest [Member] | Three to Four Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	3,115,800	1,512,895
Interest [Member] | Four to Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	2,246,896	1,028,452
Interest [Member] | More Than Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	3,893,963	2,700,668
Present Value [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	128,995,218	61,753,442
Present Value [Member] | Less Than One Year [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	11,121,878	6,101,812
Present Value [Member] | One to Two Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	13,430,422	6,480,254
Present Value [Member] | Two to Three Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	13,720,223	6,483,911
Present Value [Member] | Three to Four Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	14,200,451	6,520,943
Present Value [Member] | Four to Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	15,024,812	6,965,701
Present Value [Member] | More Than Five Years [Member]
Disclosure Of Trade And Other Receivables [Line Items]
Present value of minimum lease payments receivable	$ 61,497,432	$ 29,200,821

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, 2019	Dec. 31, 2018
Disclosure Of Financial Assets That Are Past Due But Not Impaired [Line Items]
Trade Receivables Past Due but not Impaired	$ 65,954,438	$ 58,268,914
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	43,661,270	37,711,262
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	6,462,265	3,916,489
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	5,162,189	5,312,988
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	$ 10,668,714	$ 11,328,175

Trade and Other Receivables -_3

Trade and Other Receivables - Summary of Reconciliation of Changes in the Allowance for Impairment of Trade Receivables (Detail) - Trade Receivables [Member] - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Assets [Line Items]
Balance at beginning of period	$ 39,126,435
Balance at end of period		$ 39,126,435
Trade Receivables Past Due and Impaired [Member] | Accumulated impairment [member]
Disclosure Of Financial Assets [Line Items]
Balance at beginning of period	49,479,880	43,874,059
Increases (decreases) for the year	10,047,000	4,783,072
Amounts written off	(4,067,201)	(3,863,702)
Foreign currency translation differences	4,968
Other movements		12,984
Balance at end of period	$ 55,464,647	49,479,880
Trade Receivables Past Due and Impaired [Member] | Accumulated impairment [member] | Initial balance adjustment for IFRS 9
Disclosure Of Financial Assets [Line Items]
Increases (decreases) for the year		$ 4,673,467

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, 2019	Dec. 31, 2018
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	$ 68,182,133	$ 54,171,060
Receivables from related parties Non-current	34,407,142
Accounts payable to related parties Current	159,809,887	157,936,325
Non-current accounts payable to related parties	784,373,484	447,193,802
Endesa Spain [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	26,979	27,023
Enel Global Infrastructure and Network [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	146,061
Enel Green Power Morocco [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	94,340
GNL Chile S.A. [Member] | Advance Natural Gas Purchase | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	31,025,024	14,666,414
Receivables from related parties Non-current	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		788,336
Endesa Generacion [Member] | Other Services [Member] | Spain [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	45,069	41,820
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 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	466,281
Enel Global I&N S.R.L. [Member] | Technical Services [Member] | Italy [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		10,365
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	60,717	29,054
Enel Italy SrL. [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	403,854	295,892
Enel Global Trading S.p.A. IT [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	120,276	44,675
Enel Global Trading S.p.A. IT [Member] | Commodity Derivatives [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	2,962,387	3,671,446
Enel Global Trading S.p.A. IT [Member] | Gas Sales [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	16,880,527	18,565,698
Enel S.p.A [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	467,393	415,200
Enel Brasil S A [Member] | Other Services [Member] | Brazil [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		281,002
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		173,300
Enel Brasil S A [Member] | Other Services [Member] | Brazil [Member] | Brazilian real [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	705,954
Enel Finance International NV [Member] | Loan Receivable [Member] | Holland [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		1,008,208
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	859,573
Codensa S.A [Member] | Other Services [Member] | Colombia [Member] | Colombia, Pesos
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		427,882
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	578,847	703,368
Enel Green Power North America Inc [Member] | Other Services [Member] | US [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	7,381
Enel Green Power North America Inc [Member] | Other Services [Member] | US [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	141,708	57,761
Enel Distribucin Peru S.A. [Member] | Other Services [Member] | Peru [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	603,171	354,283
Enel Green Power Mexico [Member] | Other Services [Member] | Mexico [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		98,519
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	1,765,939	1,959,124
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	1,180,707	973,873
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	2,850,769	4,197,951
Enel Americas S.A. [Member] | Other Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		107,071
Enel Green 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	284,876	276,607
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	419,032
Enel Generacin Piura 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	60,670	89,545
Enel Global Thermal Generation S.r.l. [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	273,003
Enel X North America Inc [Member] | Other Services [Member] | US [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	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
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	601,512
Enel Generacion Costanera 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	12,589	13,367
Enel Generacion Costanera 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	34,771	32,264
Enel Produzione [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	13,781
Enel X SLR [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	26,954	14,233
Aysén Energìa [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		14,286
Aysén Transmisiòn [Member] | Other Services [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		14,285
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	108,327	52,241
Empresa Distribuidora Sur S.A. [Member] | Other Services [Member] | Argentina [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current		23,077
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	1,305,475	464,846
Enel Green Power Spa IT [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,399,057	2,405,958
Enel Green Power Spa IT [Member] | Other Services [Member] | Italy [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	1,509,373
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
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	341,200	309,717
Enel Green Power Brazil 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		52,215
Enel Green Power Brazil Participacoes LTDA. [Member] | Other Services [Member] | Brazil [Member] | Brazilian real [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Receivables from related parties Current	127,879	23,329
Accounts Payables [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	159,809,887	157,936,325
Non-current accounts payable to related parties	784,373,484	447,193,802
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 Global Infrastructure and Network [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	57,324
Accounts Payables [Member] | Enel Global Infrastructure and Network [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	1,984,129	1,235,525
Accounts Payables [Member] | GNL Chile 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		12,389
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	4,980,936	5,935,652
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	216,522	702,702
Accounts Payables [Member] | Enel Iberia SRL [Member] | Other Services [Member] | Spain [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		35
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	883,576	820,642
Accounts Payables [Member] | Enel Italy SrL IT [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	9,115,709	10,658,407
Accounts Payables [Member] | Enel Italy SrL IT [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	6,438,614	1,528,308
Accounts Payables [Member] | Enel Global Trading S.p.A. IT [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	1,099,133	2,258,059
Accounts Payables [Member] | Enel Global Trading S.p.A. IT [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,857,244
Accounts Payables [Member] | Enel Global Trading S.p.A. IT [Member] | Commodity Derivatives [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	9,295,836	9,849,260
Accounts Payables [Member] | Enel S.p.A [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	2,965,604	3,041,172
Accounts Payables [Member] | Enel S.p.A [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	6,982,284	2,825,084
Accounts Payables [Member] | Enel S.p.A [Member] | Dividends [Member] | Italy [Member] | Chilean Peso [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	35,863,042	67,197,814
Accounts Payables [Member] | Enel S.p.A [Member] | Dividends [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	19,155,829
Accounts Payables [Member] | Enel Brasil S A [Member] | Other Services [Member] | Brazil [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		74,949
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 Finance International NV [Member] | Loan | Holland [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		123,979
Non-current accounts payable to related parties	781,875,824	447,193,802
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	17,950	13,579
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	4,723	4,723
Accounts Payables [Member] | Enel Green Power North America Inc [Member] | Other Services [Member] | US [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	248,051	149,591
Accounts Payables [Member] | Enel Distribucin 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	2,291	2,291
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	1,909,747	1,461,815
Accounts Payables [Member] | Enel Americas S.A. [Member] | Other Services [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current		1,987
Accounts Payables [Member] | Enel Global Thermal Generation S.r.l. [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	681,544
Accounts Payables [Member] | Enel Global Thermal Generation S.r.l. [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	3,017,847	2,199,811
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	86,189	77,624
Accounts Payables [Member] | E-Distribuzione Spa [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	49,488	336,814
Accounts Payables [Member] | Enel Produzione [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	6,043,110	7,482,038
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] | Enel X S.R.L. [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	198,815	40,656
Accounts Payables [Member] | Enel X S.R.L. [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	147,488
Accounts Payables [Member] | Enel Energia [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	452,289	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] | Cesi SPA [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	890,343	458,228
Accounts Payables [Member] | Tecnatom SA [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	29,093	102,962
Accounts Payables [Member] | Enel Green Power Spa IT [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	8,514,576	16,609,801
Accounts Payables [Member] | Enel Green Power Spa IT [Member] | Other Services [Member] | Italy [Member] | U.S. Dollar [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	6,328,568
Accounts Payables [Member] | Enel Green Power Spa IT [Member] | Technical Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	19,758,903	13,743,624
Accounts Payables [Member] | Enel Green Power Spa GLO [Member] | Other Services [Member] | Italy [Member] | Euros [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Accounts payable to related parties Current	8,418,481	7,772,801
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	352,233	217,859
Accounts Payables [Member] | Energia 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	344,877	$ 370,028
Accounts Payables [Member] | Energia 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	$ 107,037

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Endesa Energia S.A. [Member] | Gas Sales [Member] | Spain [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses			$ 10,394,146
Enel Americas S.A. [Member] | Other Services Rendered [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	$ 4,748,244	$ 5,071,453	4,737,522
GNL Chile S.A. [Member] | Fuel Consumption [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(99,801,403)	(131,521,989)	(194,163,392)
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)	(11,758,824)
Sociedad Almeyda Solar Spa [Member] | Energy Purchases [Member] | Chile [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		(1,052,840)	(4,306,145)
Enel S.p.A [Member] | Technical Services [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(4,110,257)
Enel Italia Servizi [Member] | Other Fixed Operating Expenses [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses			(2,230,668)
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)	(104,865,684)
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)	(16,630,422)
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)	(25,959,608)
Enel Global Trading S.p.A [Member] | Technical Services [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(1,634,832)	(1,213,116)
Enel Global Trading S.p.A [Member] | Gas Sales [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	58,352,346	34,701,425	21,484,590
Enel Global Trading S.p.A [Member] | Commodity Derivatives [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(12,118,800)	7,584,772	$ 18,311,343
Enel Italy IT [Member] | Other Fixed Operating Expenses [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		(4,111,525)
Enel Italy IT [Member] | Other Services Rendered [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(3,089,599)
Enel Italy S.R.L. GLO [Member] | Technical Services [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	(2,750,306)
Enel Global Thermal Generation S.r.l. [Member] | Other Fixed Operating Expenses [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		(1,845,425)
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	(31,328,749)	(23,253,535)
Enel Green Power Spa IT [Member] | Technical Services [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses		$ (4,257,363)
Enel Green Power Spa GLO [Member] | Technical Services [Member] | Italy [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Significant transactions and effects on income/expenses	$ (3,898,762)

Balances and Transactions wit_5

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

Dec. 21, 2018USD ($)

May 31, 2017USD ($)

Dec. 20, 2012USD ($)

May 31, 2017CLP ($)

Jun. 30, 2019USD ($)

Jun. 30, 2017USD ($)

Dec. 31, 2019CLF ( )directoritem

Dec. 31, 2019CLP ($)directoritem

Dec. 31, 2018CLP ($)

Dec. 31, 2017CLP ($)

Dec. 31, 2015USD ($)

Dec. 31, 2019USD ($)

Dec. 31, 2019CLP ($)

Jun. 28, 2019

Dec. 31, 2018USD ($)

Dec. 31, 2018CLP ($)

Mar. 28, 2018

Dec. 31, 2017USD ($)

Dec. 31, 2017CLP ($)

Disclosure Of Transactions Between Related Parties [Line Items]

Number of members in Board of Directors | director

7

7

Term of service for each director

3 years

3 years

Days prior to the prepayment date

10 days

10 days

Amounts payable to related parties

$ 159,809,887

$ 157,936,325

Compensation for directors

$ 2,566,731

$ 3,779,308

$ 3,700,042

Enel Green Power Chile S.A. [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Outstanding debt

$ 644,000

482,466,643

$ 644,000

447,431,880

$ 395,899,000

Enel Chile S.A [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

0.05%

0.05%

Enel Chile Board [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Amounts receivable from related parties

0

Amounts payable to related parties

$ 0

Description of compensation transactions

The compensantion consists of paying to each member of the Board of Director a monthly payment, one part in a

The compensantion consists of paying to each member of the Board of Director a monthly payment, one part in a

Compensation for directors

$ 515,875

454,471

445,161

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

Maximum number of sessions for per diem | item

16

16

Chairman [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Description of compensation transactions

the compensation for the Chairman of the Board will be double that of a Director

the compensation for the Chairman of the Board will be double 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 in a fixed monthly fee and another part dependent on meetings attended.

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

Compensation for directors

$ 100,944

$ 93,054

$ 85,512

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 Americas S.A. [Member] | Enel Chile S.A [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Outstanding debt

0

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

Percentage of fee on margin

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]

Margin rate of interest

0.25%

1.35%

Enel Finance International NV [Member] | Enel Green Power Chile S.A. [Member] | Libor 6M

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

1.00%

Enel Finance International NV [Member] | Enel Green Power Chile S.A. [Member] | Libor 3M

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

2.50%

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 S.A [Member]

Disclosure Of Transactions Between Related Parties [Line Items]

Short-term loans

$ 150,000,000

Renewal of draft period before obligation expires

5 days

5 days

Outstanding debt

$ 400,000

$ 299,496,000

Committed amount

$ 400,000

$ 800,000

$ 250,000

$ 50,000

$ 50,000

Percentage of fee on margin

35.00%

Enel Finance International NV [Member] | Enel Chile S.A [Member] | Libor 6M

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

0.90%

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

Disclosure Of Transactions Between Related Parties [Line Items]

Outstanding debt

$ 0

$ 1,453,000

$ 1,008,208

$ 78,000

$ 47,950,500

Enel Finance International NV [Member] | Enel Green Power Chile Ltda. [Member] | Libor 1M

Disclosure Of Transactions Between Related Parties [Line Items]

Margin rate of interest

0.80%

0.80%

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	$ 2,566,731	$ 3,779,308	$ 3,700,042
Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	515,875	454,471	445,161
Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	100,944	93,054	85,512
Herman Chadwick Pinera [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	206,350	181,789	178,065
Fernan Gazmuri Plaza [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,175	90,894	89,032
Fernan Gazmuri Plaza [Member] | Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	33,648	31,018	28,504
Pedro Pablo Cabrera Gaete [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,175	90,894	89,032
Pedro Pablo Cabrera Gaete [Member] | Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	33,648	31,018	28,504
Juan Gerardo Jofre Miranda [Member] | Enel Chile Board [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	103,175	90,894	89,032
Juan Gerardo Jofre Miranda [Member] | Directors Committee [Member]
Disclosure Of Transactions Between Related Parties [Line Items]
Enel Chile Board	$ 33,648	$ 31,018	$ 28,504

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, 2019	Dec. 31, 2018	Dec. 31, 2017
BALANCES AND TRANSACTIONS WITH RELATED PARTIES
Cash compensation	$ 2,357,252	$ 2,959,019	$ 2,959,467
Short-term benefits for employees	207,391	497,424	557,122
Other long-term benefits	2,088	322,865	183,453
Total	2,566,731	$ 3,779,308	$ 3,700,042
Guaranteed to key management personnel	$ 0

Inventories - Summary of Classe

Inventories - Summary of Classes of Inventories (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
INVENTORIES.
Supplies for Production	$ 18,352,465	$ 35,786,830
Gas	2,287,934	7,115,226
Oil	3,888,712	2,684,688
Coal	12,175,819	25,986,916
Supplies for projects and spare parts	18,073,825	12,951,779
Electrical materials	3,245,960	8,223,034
Total	$ 39,672,250	$ 56,961,643

Inventories - Additional Inform

Inventories - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
INVENTORIES.
Inventories pledged as security for liabilities	$ 0	$ 0
Raw materials and consumables recognized as fuel expenses	$ 230,944,415	$ 231,028,169	$ 280,739,362

Current Tax Assets and Liabil_3

Current Tax Assets and Liabilities - Summary of Current Tax Assets and Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
CURRENT TAX ASSETS AND LIABILITIES
Monthly provisional tax payments	$ 38,896,220	$ 52,950,410
Tax credit for absorbed profits	85,708,128	46,343,265
Tax credit for training expenses	2,668,941	470,142
Total	127,273,289	99,763,817
Income tax	17,995,833	17,677,920
Total	$ 17,995,833	$ 17,677,920

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, 2019	Dec. 31, 2018
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Investments accounted for using Equity Method, Beginning balance	$ 12,873,531	$ 16,912,454
Additions	131,647
Share of Profit (Loss)	366,089	3,190,240
Dividends Declared	(5,588,800)	(1,884,140)
Foreign Currency Translation	34,509	239,766
Other Increase (Decrease)	111,612	(5,584,789)
Investments accounted for using Equity Method, Ending balance	$ 7,928,588	$ 12,873,531
Transmisora Electrica de Quillota Ltda. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	50.00%	0.08%
Investments accounted for using Equity Method, Beginning balance	$ 9,473,711	$ 8,818,759
Share of Profit (Loss)	695,437	654,952
Dividends Declared	(4,069,920)
Investments accounted for using Equity Method, Ending balance	$ 6,099,228	$ 9,473,711
Enel Argentina S A
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Ownership Interest	0.08%	0.12%
Investments accounted for using Equity Method, Beginning balance	$ 300,198	$ 105,146
Share of Profit (Loss)	104,335	86,021
Foreign Currency Translation	(95,726)	(108,069)
Other Increase (Decrease)	93,101	217,100
Investments accounted for using Equity Method, Ending balance	$ 401,908	$ 300,198
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	$ 3,052,983	$ 3,783,316
Share of Profit (Loss)	(254,132)	805,972
Dividends Declared	(1,518,880)	(1,884,140)
Foreign Currency Translation	130,235	347,835
Investments accounted for using Equity Method, Ending balance	$ 1,410,206	$ 3,052,983
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	$ 46,639
Additions	131,647
Share of Profit (Loss)	(179,551)	$ (91,213)
Other Increase (Decrease)	18,511	137,852
Investments accounted for using Equity Method, Ending balance	$ 17,246	46,639
Centrales Hidroelectricas de Aysen S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Investments accounted for using Equity Method, Beginning balance		4,205,233
Share of Profit (Loss)		1,734,508
Other Increase (Decrease)		$ (5,939,741)

Investments Accounted for Usi_4

Investments Accounted for Using the Equity Method - Balance Sheet Considered for Liquidation Process (Detail) - CLP ($)	Sep. 07, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2014	Dec. 31, 2017	Dec. 20, 2017	Dec. 31, 2016
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Impairment loss		$ 742,389,000	$ 779,825,000
CURRENT ASSETS
Cash and cash equivalents		235,684,500,000	245,171,924,000		$ 419,456,026,000		$ 245,999,192,000
Current accounts receivable from related parties		68,182,133,000	54,171,060,000
TOTAL CURRENT ASSETS		1,018,212,660,000	996,947,772,000
NON-CURRENT ASSETS
Property, plant and equipment		5,360,319,624,000	5,308,647,633,000		3,585,687,137,000
TOTAL NON-CURRENT ASSETS		6,839,775,504,000	6,491,072,392,000
TOTAL ASSETS		7,857,988,164,000	7,488,020,164,000
CURRENT LIABILITIES
Other current provisions		4,065,965,000	5,588,786,000
TOTAL CURRENT LIABILITIES		1,041,299,852,000	1,217,464,152,000
EQUITY
Issued capital		3,882,103,470,000	3,954,491,479,000			$ 1,891,727,278,668
Retained earnings		2,008,103,651,000	1,914,797,613,000
TOTAL EQUITY		3,747,283,652,000	3,674,163,781,000		3,786,961,657,000		$ 3,462,993,642,000
TOTAL LIABILITIES AND EQUITY		7,857,988,164,000	7,488,020,164,000
Enel Generación Chile S.A. [Member]
CURRENT ASSETS
TOTAL CURRENT ASSETS		583,721,624,000	548,220,314,000		590,543,532,000
NON-CURRENT ASSETS
TOTAL NON-CURRENT ASSETS		2,934,658,635,000	2,725,004,288,000		2,602,962,586,000
TOTAL ASSETS		3,518,380,259,000	3,273,224,602,000		3,193,506,118,000
CURRENT LIABILITIES
TOTAL CURRENT LIABILITIES		449,869,095,000	569,928,285,000		489,875,667,000
EQUITY
TOTAL EQUITY		1,986,798,959,000	1,765,156,347,000		1,812,547,296,000
TOTAL LIABILITIES AND EQUITY		$ 3,518,380,259,000	$ 3,273,224,603,000		$ 3,193,506,118,000
Centrales Hidroelectricas de Aysen S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Impairment loss				$ 69,066,857,000
CURRENT ASSETS
Cash and cash equivalents	$ 72,339,000
Current accounts receivable from related parties	56,021,000
TOTAL CURRENT ASSETS	128,360,000
NON-CURRENT ASSETS
Property, plant and equipment	11,603,281,000
TOTAL NON-CURRENT ASSETS	11,603,281,000
TOTAL ASSETS	11,731,641,000
CURRENT LIABILITIES
Other current provisions	83,403,000
TOTAL CURRENT LIABILITIES	83,403,000
EQUITY
Issued capital	188,855,665,000
Retained earnings	(177,207,427,000)
TOTAL EQUITY	11,648,238,000
TOTAL LIABILITIES AND EQUITY	$ 11,731,641,000
Centrales Hidroelectricas de Aysen S.A. [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Percentage of distribution of assets	51.00%
CURRENT ASSETS
Cash and cash equivalents	$ 36,892,000
Current accounts receivable from related parties	28,571,000
TOTAL CURRENT ASSETS	65,463,000
NON-CURRENT ASSETS
Property, plant and equipment	5,917,673,000
TOTAL NON-CURRENT ASSETS	5,917,673,000
TOTAL ASSETS	5,983,136,000
CURRENT LIABILITIES
Other current provisions	42,535,000
TOTAL CURRENT LIABILITIES	42,535,000
EQUITY
Issued capital	96,316,389,000
Retained earnings	(90,375,788,000)
TOTAL EQUITY	5,940,601,000
TOTAL LIABILITIES AND EQUITY	$ 5,983,136,000
Centrales Hidroelectricas de Aysen S.A. [Member] | Colbún S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Percentage of distribution of assets	49.00%

Investments Accounted for Usi_5

Investments Accounted for Using the Equity Method - Additional Information (Detail)	Dec. 31, 2019CLP ($)
Joint Ventures [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Consideration transferred	$ 0
Associates [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Consideration transferred	$ 0

Investments Accounted for Usi_6

Investments Accounted for Using the Equity Method - Summary of Financial Information from Financial Statements of Investments in Associates (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Current Assets	$ 1,018,212,660	$ 996,947,772
Non-current Assets	6,839,775,504	6,491,072,392
Current Liabilities	1,041,299,852	1,217,464,152
Non-current Liabilities	3,069,404,660	2,596,392,231
Revenues	2,624,576,323	2,410,360,459	$ 2,484,101,582
NET INCOME	316,093,218	412,847,757	523,417,911
Other Comprehensive Income	(34,855,794)	(53,736,400)	69,423,985
Comprehensive Income	$ 281,237,424	$ 359,111,357	$ 592,841,896
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	$ 67,419,256	$ 75,571,058
Non-current Assets	1,615,973,312	267,884
Current Liabilities	161,197,047	66,679,077
Non-current Liabilities	1,517,964,903
Revenues	582,441,735	707,597,382
Expenses	(583,204,131)	(705,179,062)
NET INCOME	(762,396)	2,418,157
Other Comprehensive Income	389,843	1,043,609
Comprehensive Income	$ (372,553)	$ 3,461,766

Investments Accounted for Usi_7

Investments Accounted for Using the Equity Method - Summary of Financial Information from Financial Statements of Main Joint Ventures (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Current Assets	$ 1,018,212,660	$ 996,947,772
Non-current Assets	6,839,775,504	6,491,072,392
Current Liabilities	1,041,299,852	1,217,464,152
Non-current Liabilities	3,069,404,660	2,596,392,231
Cash and cash equivalents	235,684,500	245,171,924	$ 419,456,026	$ 245,999,192
Revenues	2,624,576,323	2,410,360,459	2,484,101,582
Depreciation and amortization expense	(236,627,387)	(215,187,300)	(152,684,106)
Income tax expense, continuing operations	(61,227,904)	(153,482,519)	(143,342,301)
Profit (loss)	316,093,218	412,847,757	523,417,911
Other Comprehensive Income	(34,855,794)	(53,736,400)	69,423,985
Comprehensive Income	281,237,424	359,111,357	$ 592,841,896
Centrales Hidroelectricas de Aysen S.A. [Member]
Disclosure Of Significant Investments In Associates And Joint Ventures [Line Items]
Other fixed operating expenses		(125,182)
Other Income		3,526,179
Profit (loss)		3,400,997
Other Comprehensive Income	$ 0	0
Comprehensive Income		$ 3,400,997
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	$ 3,346,667	$ 9,360,553
Non-current Assets	10,834,220	11,530,788
Current Liabilities	365,640	235,264
Non-current Liabilities	1,616,791	1,708,660
Cash and cash equivalents	2,403,904	8,185,391
Revenues	3,191,566	3,003,757
Other fixed operating expenses	(768,866)	(758,607)
Depreciation and amortization expense	(782,800)	(784,364)
Other Income	6,087
Interest income	152,370	187,601
Income tax expense, continuing operations	(407,478)	(349,848)
Profit (loss)	1,390,879	1,309,903
Other Comprehensive Income	0	0
Comprehensive Income	$ 1,390,879	$ 1,309,903

Intangible Assets Other Than _3

Intangible Assets Other Than Goodwill - Summary of Intangible Assets (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Intangible Assets [Line Items]
Intangible assets	$ 132,278,593	$ 115,372,393	$ 55,170,904
Intangible Assets, Amortization and Impairment	(11,903,007)	(12,215,408)
Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	229,944,365	202,377,094
Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible Assets, Amortization and Impairment	(97,665,772)	(87,004,701)
Easements and Water Rights [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	17,352,892	17,736,954	12,608,950
Intangible Assets, Amortization and Impairment	(809,435)	(347,397)
Easements and Water Rights [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	22,553,618	22,011,401
Easements and Water Rights [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible Assets, Amortization and Impairment	(5,200,726)	(4,274,447)
Service concession rights [member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	26,156,419	25,953,878
Intangible Assets, Amortization and Impairment	(1,826,042)	(4,109,453)
Service concession rights [member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	34,718,676	32,055,825
Service concession rights [member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible Assets, Amortization and Impairment	(8,562,257)	(6,101,947)
Patents, Registered trademarks and Other Rights
Disclosure Of Intangible Assets [Line Items]
Intangible assets	316,970	7,394
Intangible Assets, Amortization and Impairment	(24,200)	(5,090)
Patents, Registered trademarks and Other Rights | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	771,002	12,484
Patents, Registered trademarks and Other Rights | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible Assets, Amortization and Impairment	(454,032)	(5,090)
Computer Software [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	76,162,800	60,067,635	38,254,793
Intangible Assets, Amortization and Impairment	(9,241,732)	(7,750,745)
Computer Software [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	156,836,017	133,931,876
Computer Software [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible Assets, Amortization and Impairment	(80,673,217)	(73,864,241)
Other Identifiable Intangible Assets [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	12,289,512	11,606,532	$ 4,307,161
Intangible Assets, Amortization and Impairment	(1,598)	(2,723)
Other Identifiable Intangible Assets [Member] | Gross Carrying Amount [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible assets	15,065,052	14,365,508
Other Identifiable Intangible Assets [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Intangible Assets [Line Items]
Intangible Assets, Amortization and Impairment	$ (2,775,540)	$ (2,758,976)

Intangible Assets Other Than _4

Intangible Assets Other Than Goodwill - Summary of Reconciliations of the Carrying Amounts of Intangible Assets (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	$ 115,372,393	$ 55,170,904
Changes in identifiable intangible assets
Increases (decreases) other than from business combinations	25,208,199	25,774,814
Acquisitions made through business combination		41,786,161
Increase (decrease) from exchange differences, net	3,537,237	6,914,203
Amortization	(11,903,007)	(12,215,408)
Disposals and removals from service		(509,981)
Removals from service		(509,981)
Argentina Hyperinflation Effect	203	180
Increase (decrease)	63,568	(1,548,480)
Total changes in identifiable intangible assets	16,906,200	60,201,489
Ending balance	132,278,593	115,372,393
Easements and Water Rights [Member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	17,736,954	12,608,950
Changes in identifiable intangible assets
Increases (decreases) other than from business combinations		2,721
Increase (decrease) from exchange differences, net	425,373	769,421
Amortization	(809,435)	(347,397)
Increases (decreases) from transfers and other changes		5,213,240
Increases (decreases) from transfers		5,213,240
Disposals and removals from service		(509,981)
Removals from service		(509,981)
Total changes in identifiable intangible assets	(384,062)	5,128,004
Ending balance	17,352,892	17,736,954
Service concession rights [member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	25,953,878
Changes in identifiable intangible assets
Acquisitions made through business combination		30,077,961
Increase (decrease) from exchange differences, net	2,028,583	2,033,761
Amortization	(1,826,042)	(4,109,453)
Increases (decreases) from transfers and other changes		(2,048,391)
Increases (decreases) from transfers		(2,048,391)
Total changes in identifiable intangible assets	202,541	25,953,878
Ending balance	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	7,394
Changes in identifiable intangible assets
Increases (decreases) other than from business combinations		12,484
Amortization	(24,200)	(5,090)
Increases (decreases) from transfers and other changes	333,776
Increases (decreases) from transfers	333,776
Total changes in identifiable intangible assets	309,576	7,394
Ending balance	316,970	7,394
Computer Software [Member]
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Beginning balance	60,067,635	38,254,793
Changes in identifiable intangible assets
Increases (decreases) other than from business combinations	25,208,199	25,759,609
Acquisitions made through business combination		2,113,933
Increase (decrease) from exchange differences, net	156,906	4,111,021
Amortization	(9,241,732)	(7,750,745)
Increases (decreases) from transfers and other changes	(91,776)	(866,790)
Increases (decreases) from transfers	(91,776)	(866,790)
Increase (decrease)	63,568	(1,554,186)
Total changes in identifiable intangible assets	16,095,165	21,812,842
Ending balance	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	11,606,532	4,307,161
Changes in identifiable intangible assets
Acquisitions made through business combination		9,594,267
Increase (decrease) from exchange differences, net	926,375
Amortization	(1,598)	(2,723)
Increases (decreases) from transfers and other changes	(242,000)	(2,298,059)
Increases (decreases) from transfers	(242,000)	(2,298,059)
Argentina Hyperinflation Effect	203	180
Increase (decrease)		5,706
Total changes in identifiable intangible assets	682,980	7,299,371
Ending balance	$ 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, 2019	Dec. 31, 2018
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	$ 915,044,725	$ 887,257,655
Business combinations		24,196,282
Transfer Fusion by absortion	0
Foreign currency exchange difference	2,308,249	3,590,788
Closing balance	917,352,974	915,044,725
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
Transfer Fusion by absortion	0
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
Transfer Fusion by absortion	0
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	731,782,459	731,782,459
Transfer Fusion by absortion	24,860,356
Foreign currency exchange difference	0	0
Closing balance	756,642,815	731,782,459
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	24,860,356	24,860,356
Transfer Fusion by absortion	(24,860,356)
Foreign currency exchange difference	0	0
Closing balance	0	24,860,356
Enel Chile S.A [Member] | Empresa Electrica Panguipulli 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	20,146,823
Business combinations		17,543,347
Transfer Fusion by absortion	0
Foreign currency exchange difference	1,673,580	2,603,476
Closing balance	21,820,403	20,146,823
Enel Green Power Chile Ltda. [Member] | Geotérmica del Norte [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	75,646
Business combinations		65,871
Transfer Fusion by absortion	0
Foreign currency exchange difference	6,284	9,775
Closing balance	81,930	75,646
Enel Green Power Chile Ltda. [Member] | Parque Eolico Talinay Oriente 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	7,564,601
Business combinations		6,587,064
Transfer Fusion by absortion	0
Foreign currency exchange difference	628,385	977,537
Closing balance	$ 8,192,986	$ 7,564,601

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%
Empresa Electrica Pangue S.A. [Member]
Disclosure Of Information About Goodwill [Line Items]
Percentage of acquisition through put option			2.51%
Compania Electrica San Isidro S.A. [Member]
Disclosure Of Information About Goodwill [Line Items]
Ownership interest in subsidiary		25.00%

Property Plant and Equipment -

Property Plant and Equipment - Summary of Property Plant and Equipment (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	$ 5,360,319,624	$ 5,308,647,633	$ 3,585,687,137
Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	9,296,027,122	8,747,182,818
Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(3,935,707,498)	(3,438,535,185)
Construction in Progress [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,048,988,931	862,274,093	666,590,543
Construction in Progress [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,048,988,931	862,274,093
Land [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	77,754,923	74,753,283	67,485,380
Land [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	77,754,923	74,753,283
Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	420,319,759	384,027,047	12,793,641
Buildings [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	531,250,194	470,833,768
Buildings [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(110,930,435)	(86,806,721)
Generation Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	2,895,992,861	3,143,869,929	2,080,903,064
Generation Plant and Equipment [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	6,002,160,751	5,824,130,347
Generation Plant and Equipment [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(3,106,167,890)	(2,680,260,418)
Network Infrastructure [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	809,428,974	764,095,247	683,120,815
Network Infrastructure [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	1,396,996,724	1,318,208,218
Network Infrastructure [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(587,567,750)	(554,112,971)
Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	47,758,908	55,091,617	$ 56,284,762
Fixtures and Fittings [Member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	150,242,089	151,363,603
Fixtures and Fittings [Member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	(102,483,181)	(96,271,986)
Other Property, Plant and Equipment Under Financial Lease [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	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	18,259,978	16,859,475
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	(14,028,220)	(9,977,730)
Right-of-use assets [member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	55,843,510	17,654,672
Right-of-use assets [member] | Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	70,373,532	28,760,031
Right-of-use assets [member] | Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Property, plant and equipment	$ (14,530,022)	$ (11,105,359)

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, 2019	Dec. 31, 2018
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	$ 5,308,647,633	$ 3,585,687,137
Ending balance	5,360,319,624	5,308,647,633
Changes:
Effects first application IFRS 16	28,814,142
Increases other than from business combinations	320,298,296	330,797,541
Increases other than from business combinations	320,298,423
Acquisitions through business combinations		1,372,754,489
Increases (decreases) from exchange differences, net	127,073,449	197,622,978
Depreciation	(224,704,567)	(202,952,301)
Impairment losses recognized in profit or loss for the period	(280,020,263)
Disposals and removals from service	4,865,597	1,228,028
Disposals	(1,355,006)	(527,469)
Removals from service	(3,510,591)	(700,559)
Other increases (decreases)	83,996,486	24,052,988
Argentina Hyperinflationary Effect	1,079,918	1,912,829
Total changes	51,671,991	1,722,960,496
Construction in Progress [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	862,274,093	666,590,543
Ending balance	1,048,988,931	862,274,093
Changes:
Increases other than from business combinations		321,183,398
Increases other than from business combinations	320,298,423
Acquisitions through business combinations		44,088,988
Increases (decreases) from exchange differences, net	9,880,815	14,849,366
Impairment losses recognized in profit or loss for the period	(32,967,462)
Increases (decreases) from transfers and other changes	(121,288,336)	(193,895,804)
Increases (decreases) for transfers	(121,288,336)	(193,895,804)
Other increases (decreases)	10,843,933	9,457,602
Argentina Hyperinflationary Effect	(52,535)
Total changes	186,714,838	195,683,550
Land [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	74,753,283	67,485,380
Ending balance	77,754,923	74,753,283
Changes:
Increases other than from business combinations		5,893,739
Acquisitions through business combinations		623,052
Increases (decreases) from exchange differences, net	36,282	50,004
Increases (decreases) from transfers and other changes	4,151,834
Increases (decreases) for transfers	4,151,834
Disposals and removals from service	406,656	5,411
Disposals	(406,656)
Removals from service		(5,411)
Other increases (decreases)	(779,820)	706,519
Total changes	3,001,640	7,267,903
Buildings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	384,027,047	12,793,641
Ending balance	420,319,759	384,027,047
Changes:
Increases other than from business combinations		1,000,411
Acquisitions through business combinations		329,152,208
Increases (decreases) from exchange differences, net	29,731,649	46,040,633
Depreciation	(17,944,173)	(13,795,237)
Increases (decreases) from transfers and other changes	22,879,420	12,450,092
Increases (decreases) for transfers	22,879,420	12,450,092
Disposals and removals from service	792,638
Removals from service	(792,638)
Other increases (decreases)	2,418,454	(3,614,701)
Total changes	36,292,712	371,233,406
Generation Plant and Equipment [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	3,143,869,929	2,080,903,064
Ending balance	2,895,992,861	3,143,869,929
Changes:
Increases other than from business combinations		1,638,436
Acquisitions through business combinations		941,871,560
Increases (decreases) from exchange differences, net	81,221,513	128,411,179
Depreciation	(159,163,293)	(149,247,118)
Impairment losses recognized in profit or loss for the period	(247,052,801)
Increases (decreases) from transfers and other changes	17,534,668	146,447,942
Increases (decreases) for transfers	17,534,668	146,447,942
Disposals and removals from service	948,350	90,513
Disposals	(948,350)	(90,513)
Other increases (decreases)	59,398,742	(7,977,450)
Argentina Hyperinflationary Effect	1,132,453	1,912,829
Total changes	(247,877,068)	1,062,966,865
Network Infrastructure [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	764,095,247	683,120,815
Ending balance	809,428,974	764,095,247
Changes:
Increases other than from business combinations		2,455
Acquisitions through business combinations		47,727,579
Increases (decreases) from exchange differences, net	4,238,408	6,928,376
Depreciation	(34,964,877)	(32,011,964)
Increases (decreases) from transfers and other changes	74,941,622	32,105,004
Increases (decreases) for transfers	74,941,622	32,105,004
Disposals and removals from service	1,880,608	1,132,103
Disposals		(436,956)
Removals from service	(1,880,608)	(695,147)
Other increases (decreases)	2,999,182	27,355,085
Total changes	45,333,727	80,974,432
Fixtures and Fittings [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	55,091,617	56,284,762
Ending balance	47,758,908	55,091,617
Changes:
Increases other than from business combinations		935,982
Acquisitions through business combinations		2,018,760
Increases (decreases) from exchange differences, net	65,341	338,619
Depreciation	(6,299,395)	(4,935,435)
Increases (decreases) from transfers and other changes	1,780,792	2,692,671
Increases (decreases) for transfers	1,780,792	2,692,671
Disposals and removals from service	837,345	1
Removals from service	(837,345)	(1)
Other increases (decreases)	(2,042,102)	(2,243,741)
Total changes	(7,332,709)	(1,193,145)
Other Property, Plant and Equipment Under Financial Lease [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	6,881,745
Ending balance	4,231,758	6,881,745
Changes:
Increases other than from business combinations		143,120
Acquisitions through business combinations		6,904,334
Increases (decreases) from exchange differences, net	361,574	982,330
Depreciation	(3,011,561)	(2,105,472)
Increases (decreases) from transfers and other changes		222,027
Increases (decreases) for transfers		222,027
Other increases (decreases)		735,406
Total changes	(2,649,987)	6,881,745
Right-of-use assets [member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	17,654,672
Ending balance	55,843,510	17,654,672
Changes:
Effects first application IFRS 16	28,814,142
Increases (decreases) from exchange differences, net	1,537,867
Depreciation	(3,321,268)
Other increases (decreases)	11,158,097
Total changes	38,188,838
Finance Leased Assets [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Beginning balance	$ 17,654,672	18,508,932
Ending balance		17,654,672
Changes:
Acquisitions through business combinations		368,008
Increases (decreases) from exchange differences, net		22,471
Depreciation		(857,075)
Increases (decreases) from transfers and other changes		(21,932)
Increases (decreases) for transfers		(21,932)
Other increases (decreases)		(365,732)
Total changes		$ (854,260)

Property Plant and Equipment _3

Property Plant and Equipment - Additional Information (Detail) € in Millions	Aug. 31, 2016CLP ($)	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Dec. 31, 2017CLP ($)	Dec. 31, 2016CLP ($)	Dec. 31, 2015CLP ($)	Dec. 31, 2014CLP ($)	Dec. 31, 2009CLP ($)	Dec. 31, 2019EUR (€)	Dec. 31, 2019CLP ($)
Disclosure Of Property Plant And Equipment [Line Items]
Additions to property plant and equipment, investments in operating plants and new projects		$ 320,298,296,000	$ 330,797,541,000
Investment on property plant and equipment, maintenance to plants			142,578,993,000							$ 91,638,411,000
Investment on property plant and equipment, network extensions and investments to optimize the operation			84,727,900,000							$ 92,392,704,000
Capitalized borrowing costs		9,321,354,000	6,435,646,000	$ 4,078,463,000
Employee expenses capitalized, included in Other work performed by the entity and capitalized in Comprehensive Income Statement		$ 17,610,861,000	16,710,963,000	14,388,987,000
Lease agreement period		20 years
Annual interest rate									6.50%	6.50%
Amount of short term and variable lease payments exempted		$ 3,824,195,000
Short term lease expense exempted		1,995,392,000
Variable lease expense exempted		1,828,803,000
Rental Expense		3,824,195,000	3,775,007,000	2,013,411,000
Contractual commitments for the acquisition of property, plants and equipment			269,176,169,000							$ 185,457,682,000
Property, plant and equipment pledged as security for liabilities			0							0
Impairment loss recognised	$ 32,834,160,000						$ 12,581,947,000
Write Off Of Intangible Assets Other Than Goodwill	$ 2,549,926,000
Percentage of impairment related cost	100.00%
Depreciation		224,704,567,000	202,952,301,000
Fixed assets written off		1,629,983,000
Retirement of property plant and equipment		1,880,608,000
Write-off Property, Plant and Equipment		3,510,591,000		25,105,911,000
Tarapaca Plant [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised		197,188,542,000
Bocamina I [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised		82,831,721,000
Bocamina II [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Depreciation		4,083,855,000
Neltume Project [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised				21,975,641,000	$ 20,459,461,000
Choshuenco Projects [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised				$ 3,130,270,000	3,748,124,000
NCRE Project [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised					$ 6,577,946,000
Percentage of impairment related cost					100.00%
Enel Generacion Chile [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Write Off Of Property Plant And Equipment					$ 1,096,137,000
Percentage of impairment related cost					100.00%
Provision recognized					$ 2,244,900,000
Enel Generacion Chile [Member] | Tames and Totoralillo [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised						$ 2,706,830,000
Enel Generacion Chile [Member] | Waiwen wind project [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised						$ 2,522,445,000
Enel Green Power Chile Group | Geotermica del Norte SA [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Additions to property plant and equipment, investments in operating plants and new projects		33,134,694,000	2,360,416,000
Enel Green Power Chile Group | Enel Green Power Del Sur S P A [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Additions to property plant and equipment, investments in operating plants and new projects		$ 27,506,626,000	$ 2,227,380,000
Enel Generación Chile S.A. [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Impairment loss recognised								$ 43,999,600,000
Generating Companies [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Insurance Policies Amount For All Risks									€ 1,000	844,140,650,000
Third Party Damages Insurance [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Civil Liability Insurance Amount									500	422,070,325,000
Environmental Damages Insurance [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Civil Liability Insurance Amount									€ 20	$ 16,882,813,000
Bottom of Range [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Weighted average borrowing rate		7.71%	7.12%
Top of Range [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Weighted average borrowing rate		8.00%	7.71%

Property Plant and Equipment _4

Property Plant and Equipment - Right of use assets (Detail) - CLP ($) $ in Thousands	Jan. 01, 2019	Dec. 31, 2019
Land [Member]
Movements In Right Of Use Assets [Roll Forward]
Opening balance January 1, 2019	$ 2,758	$ 2,758
Effects first time adoption IFRS 16	23,097,767
Opening balance January 1, 2019	23,100,525
Increases (decreases) from foreign currency translation differences, net		1,537,867
Depreciation		(1,482,706)
New agreements (decreases)		10,926,113
Total changes		10,981,274
Closing balance December 31, 2019		34,081,799
Other Property, Plant and Equipment Under Financial Lease [Member]
Movements In Right Of Use Assets [Roll Forward]
Opening balance January 1, 2019	17,651,914	17,651,914
Effects first time adoption IFRS 16	5,716,375
Opening balance January 1, 2019	23,368,289
Depreciation		(1,838,562)
New agreements (decreases)		231,984
Total changes		(1,606,578)
Closing balance December 31, 2019		21,761,711
Right-of-use assets [member]
Movements In Right Of Use Assets [Roll Forward]
Opening balance January 1, 2019	17,654,672	17,654,672
Effects first time adoption IFRS 16	28,814,142
Opening balance January 1, 2019	$ 46,468,814
Increases (decreases) from foreign currency translation differences, net		1,537,867
Depreciation		(3,321,268)
New agreements (decreases)		11,158,097
Total changes		9,374,696
Closing balance December 31, 2019		$ 55,843,510

Property Plant and Equipment _5

Property Plant and Equipment - Schedule of Future Lease Payments Finance Leases (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Gross Carrying Amount [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	$ 69,808,977	$ 16,063,676
Gross Carrying Amount [Member] | Less Than One Year [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	7,602,720	2,779,080
Gross Carrying Amount [Member] | One to Two Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	6,234,867	2,779,080
Gross Carrying Amount [Member] | Two to Three Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	6,049,847	2,779,080
Gross Carrying Amount [Member] | Three to Four Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	8,326,858	7,726,436
Gross Carrying Amount [Member] | Four to Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	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	38,630,310
Interest [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	16,401,288	1,587,226
Interest [Member] | Less Than One Year [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,760,705	612,805
Interest [Member] | One to Two Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,719,045	471,998
Interest [Member] | Two to Three Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,484,321	322,037
Interest [Member] | Three to Four Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,265,224	180,386
Interest [Member] | Four to Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	1,180,435
Interest [Member] | More Than Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	8,991,558
Present Value [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	53,407,689	14,476,450
Present Value [Member] | Less Than One Year [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	5,842,015	2,166,275
Present Value [Member] | One to Two Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	4,515,822	2,307,082
Present Value [Member] | Two to Three Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	4,565,526	2,457,043
Present Value [Member] | Three to Four Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	7,061,634	$ 7,546,050
Present Value [Member] | Four to Five Years [Member]
Disclosure Of Property Plant And Equipment [Line Items]
Present value of future payments derived	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	$ 29,638,752

Property Plant and Equipment _6

Property Plant and Equipment - Schedule of Total Future Lease Payments (Detail) $ in Thousands	Dec. 31, 2019CLP ($)
Disclosure Of Future Minimum Lease Payments [Line Items]
Future lease payments	$ 3,485,151
Less Than One Year [Member]
Disclosure Of Future Minimum Lease Payments [Line Items]
Future lease payments	$ 3,485,151

Investment Property - Summary o

Investment Property - Summary of Changes in Investment Property (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Investment Property [Line Items]
Beginning balance	$ 7,557,356	$ 8,356,772
Depreciation expense	(19,812)	(19,591)
Impairment	(742,389)	(779,825)
Other increases (decreases)		(779,825)
Ending balance	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
Accumulated Depreciation, Amortization and Impairment [Member]
Disclosure Of Investment Property [Line Items]
Beginning balance	(1,632,021)	(832,605)
Depreciation expense	(19,812)	(19,591)
Impairment	(742,389)
Other increases (decreases)		(779,825)
Ending balance	$ (2,394,222)	$ (1,632,021)

Investment Property - Additiona

Investment Property - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about investment property [Line Items]
Amount of disposal of investment properties	$ 0	$ 0
Investment property	6,795,155	7,557,356	$ 8,356,772
Level 3 [Member]
Disclosure of detailed information about investment property [Line Items]
Investment property	7,880,432
At fair value [member]
Disclosure of detailed information about investment property [Line Items]
Investment property	$ 7,880,432	$ 8,228,673

Investment Property - Summary_2

Investment Property - Summary of Income and Expenses from Investment Properties (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Rental Income From Investment Property Net Of Direct Operating Expense [Abstract]
Rental income from investment properties	$ 202,896	$ 204,166	$ 192,719
Direct operating expense from investment properties generating rental income	(44,136)	(56,327)	(78,367)
Total	$ 158,760	$ 147,839	$ 114,352

Income Tax and Deferred Taxes -

Income Tax and Deferred Taxes - Components of Income Tax Expense Benefit (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Major Components Of Tax Expense Income [Abstract]
Current income tax	$ (54,904,679)	$ (47,354,780)	$ (162,820,181)
Adjustments to current tax from the previous period	(2,251,167)	(6,304,285)	(1,127,646)
Other current tax benefit / (expense)	(37,369,930)	(61,507,252)	15,934,106
Current tax expense, net	(94,525,776)	(115,166,317)	(148,013,721)
Benefit / (expense) from deferred taxes for origination and reversal of temporary differences	33,297,872	(43,134,500)	4,671,420
Adjustments for deferred tax of prior periods		4,818,298
Total deferred tax benefit / (expense)	33,297,872	(38,316,202)	4,671,420
Income tax expense	$ (61,227,904)	$ (153,482,519)	$ (143,342,301)

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Major Components Of Tax Expense Income [Abstract]
Total tax income (expense) using statutory rate	(27.00%)	(27.00%)	(25.50%)
Tax effect of rates applied in other countries	0.06%		0.05%
Tax effect of non-taxable revenues	11.30%	0.31%	5.67%
Tax effect of non-tax-deductible expenses	(2.76%)	(2.26%)	(3.11%)
Tax effect of adjustments to taxes in previous periods	(0.60%)	(1.11%)	(0.17%)
Adjustments for prior periods deferred taxes, rate		0.85%
Price level restatement for tax purposes (investments and equity)	2.76%	2.11%	1.57%
Total adjustments to tax expense using statutory rate	10.77%	(0.10%)	4.00%
Income tax benefit (expense)	(16.23%)	(27.10%)	(21.50%)
ACCOUNTING INCOME BEFORE TAX	$ 377,321,122	$ 566,330,276	$ 666,760,212
Total tax income (expense) using statutory rate	(101,876,703)	(152,909,175)	(170,023,854)
Tax effect of rates applied in other countries	232,897		(328,968)
Tax effect of non-taxable revenues	42,638,986	1,746,052	37,774,743
Tax effect of non-tax-deductible expenses	(10,399,776)	(12,786,965)	(20,737,858)
Tax effect of adjustments to taxes in previous periods	(2,251,167)	(6,304,285)	(1,127,646)
Adjustments for prior periods deferred taxes		4,818,298
Price level restatement for tax purposes (investments and equity)	10,427,859	11,953,556	10,443,346
Total adjustments to tax expense using statutory rate	40,648,799	(573,344)	26,681,553
Income tax expense	$ (61,227,904)	$ (153,482,519)	$ (143,342,301)

Income Tax and Deferred Taxes_3

Income Tax and Deferred Taxes - Summary of Origination and Changes in Deferred Tax Assets and Liabilities (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Income Taxes [Line Items]
Assets	$ 21,848,239	$ 19,171,230
Liabilities	(249,284,641)	(278,080,054)
Increase (decrease) in other comprehensive income	(38,984,238)	(60,640,669)	$ 26,165,652
Deferred Tax Assets Liabilities [Member]
Disclosure Of Income Taxes [Line Items]
Net deferred tax assets	21,848,239	19,171,230
Net deferred tax liabilities	(249,284,641)	(278,080,054)
Deferred Tax Assets Liabilities [Member] | Tax Relating To Accumulated Depreciation
Disclosure Of Income Taxes [Line Items]
Assets	10,652,313	9,636,857
Liabilities	(404,453,928)	(359,613,258)
Beginning balance	(349,976,401)	(263,685,283)
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	(5,668,543)	(3,851,978)
Acquisitions Through Business Combinations		(74,336,810)
Foreign currency translation	(1,561,204)	(10,342,994)
Other increases (decreases)	(36,595,467)	2,240,664
Ending balance	(393,801,615)	(349,976,401)	(263,685,283)
Deferred Tax Assets Liabilities [Member] | Tax Relating To Post Employment Benefit Obligations
Disclosure Of Income Taxes [Line Items]
Assets	7,772,646	6,131,110
Liabilities	(34,413)	(421,462)
Beginning balance	5,709,648	5,971,995
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	126,352	(250,223)
Increase (decrease) in other comprehensive income	2,099,845	(10,228)
Other increases (decreases)	(197,612)	(1,896)
Ending balance	7,738,233	5,709,648	5,971,995
Deferred Tax Assets Liabilities [Member] | Revaluations Of Financial Instruments [Member]
Disclosure Of Income Taxes [Line Items]
Assets	456,888
Increase (decrease) in other comprehensive income	710,523
Other increases (decreases)	(253,635)
Ending balance	456,888
Deferred Tax Assets Liabilities [Member] | Tax Loss Carryforwards
Disclosure Of Income Taxes [Line Items]
Assets	81,154,636	36,921,157
Beginning balance	36,921,157	9,536,102
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	14,343,314	(3,278,563)
Acquisitions Through Business Combinations		32,058,724
Foreign currency translation	2,096,339	2,831,404
Other increases (decreases)	27,793,826	(4,226,510)
Ending balance	81,154,636	36,921,157	9,536,102
Deferred Tax Assets Liabilities [Member] | Tax Relating To Provisions
Disclosure Of Income Taxes [Line Items]
Assets	87,275,541	55,080,385
Beginning balance	55,080,385	39,890,472
Effects first application IFRS 9 and IAS 29			1,261,836
Increase (decrease) in profit or loss	24,123,136	4,032,271
Acquisitions Through Business Combinations		5,183,782
Foreign currency translation	795,123	973,961
Other increases (decreases)	7,276,897	3,738,063
Ending balance	87,275,541	55,080,385	39,890,472
Deferred Tax Assets Liabilities [Member] | Dismantling Provision [Member]
Disclosure Of Income Taxes [Line Items]
Assets	44,485,711	23,627,264
Beginning balance	23,627,264	17,411,395
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	20,711,621	4,442,928
Acquisitions Through Business Combinations		1,707,519
Foreign currency translation	34,574	59,520
Other increases (decreases)	112,252	5,902
Ending balance	44,485,711	23,627,264	17,411,395
Deferred Tax Assets Liabilities [Member] | Provision for Civil Contingencies [Member]
Disclosure Of Income Taxes [Line Items]
Assets	3,502,161	4,108,710
Beginning balance	4,108,710	3,762,772
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	(606,549)	306,893
Foreign currency translation		39,045
Ending balance	3,502,161	4,108,710	3,762,772
Deferred Tax Assets Liabilities [Member] | Provision Contingencies Workers [Member]
Disclosure Of Income Taxes [Line Items]
Assets	492,522	430,900
Beginning balance	430,900	5,989
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	61,622	333,704
Acquisitions Through Business Combinations		8,016
Foreign currency translation		83,191
Ending balance	492,522	430,900	5,989
Deferred Tax Assets Liabilities [Member] | Provision for Doubtful Trade Accounts [Member]
Disclosure Of Income Taxes [Line Items]
Assets	14,555,712	13,253,612
Beginning balance	13,253,612	11,976,401
Effects first application IFRS 9 and IAS 29			1,261,836
Increase (decrease) in profit or loss	1,302,403	13,646
Acquisitions Through Business Combinations		3,434
Foreign currency translation	128	989
Other increases (decreases)	(431)	(2,694)
Ending balance	14,555,712	13,253,612	11,976,401
Deferred Tax Assets Liabilities [Member] | Provision of Human Resources Accounts [Member]
Disclosure Of Income Taxes [Line Items]
Assets	7,859,341	7,432,939
Beginning balance	7,432,939	6,497,206
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	3,233,471	178,162
Acquisitions Through Business Combinations		70,795
Foreign currency translation	(13,109)	686,776
Other increases (decreases)	(2,793,960)
Ending balance	7,859,341	7,432,939	6,497,206
Deferred Tax Assets Liabilities [Member] | Other provisions [member]
Disclosure Of Income Taxes [Line Items]
Assets	16,380,094	6,226,960
Beginning balance	6,226,960	236,709
Increase (decrease) in profit or loss	(579,432)	(1,243,062)
Acquisitions Through Business Combinations		3,394,018
Foreign currency translation	773,530	104,440
Other increases (decreases)	9,959,036	3,734,855
Ending balance	16,380,094	6,226,960	236,709
Deferred Tax Assets Liabilities [Member] | Other Deferred Taxes [member]
Disclosure Of Income Taxes [Line Items]
Assets	20,980,774	14,277,897
Liabilities	(31,240,859)	(20,921,510)
Beginning balance	(6,643,613)	38,900,825
Effects first application IFRS 9 and IAS 29			(213,442)
Increase (decrease) in profit or loss	373,614	(34,967,709)
Increase (decrease) in other comprehensive income	992	111
Other increases (decreases)	(3,991,078)	(10,363,398)
Ending balance	(10,260,085)	(6,643,613)	38,900,825
Deferred Tax Assets Liabilities [Member] | Tax Relating to Capitalization of Financial Expenses [Member]
Disclosure Of Income Taxes [Line Items]
Liabilities	(11,412,737)	(11,202,063)
Beginning balance	(11,202,063)	(4,780,923)
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	(407,318)	(6,421,139)
Other increases (decreases)	196,643	(1)
Ending balance	(11,412,738)	(11,202,063)	(4,780,923)
Deferred Tax Assets Liabilities [Member] | Recoverable Taxes [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance		10,491,314
Effects first application IFRS 9 and IAS 29			0
Other increases (decreases)		(10,491,314)
Ending balance			10,491,314
Deferred Tax Assets Liabilities [Member] | Taxes Relating to Equity Method Accounting [Member]
Disclosure Of Income Taxes [Line Items]
Beginning balance		30,938,736
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss		(30,938,736)
Ending balance			30,938,736
Deferred Tax Assets Liabilities [Member] | Taxes Relating to Hyperinflationary Effect [Member]
Disclosure Of Income Taxes [Line Items]
Liabilities	(657,871)	(425,687)
Beginning balance	(425,687)
Effects first application IFRS 9 and IAS 29			(213,442)
Increase (decrease) in profit or loss	(207,916)	(212,245)
Other increases (decreases)	(24,268)
Ending balance	(657,871)	(425,687)
Deferred Tax Assets Liabilities [Member] | Other Deferred Taxes
Disclosure Of Income Taxes [Line Items]
Assets	20,980,774	14,277,897
Liabilities	(19,170,251)	(9,293,760)
Beginning balance	4,984,137	2,251,698
Effects first application IFRS 9 and IAS 29			0
Increase (decrease) in profit or loss	988,848	2,604,411
Increase (decrease) in other comprehensive income	992	111
Other increases (decreases)	(4,163,453)	127,917
Ending balance	1,810,524	4,984,137	2,251,698
Deferred Tax Assets Liabilities [Member] | Deferred Tax Assets/Liabilities before compensation [Member]
Disclosure Of Income Taxes [Line Items]
Assets	208,292,798	122,047,406
Liabilities	(435,729,200)	(380,956,230)
Beginning balance	(258,908,824)	(169,385,889)
Effects first application IFRS 9 and IAS 29			1,048,394
Increase (decrease) in profit or loss	33,297,873	(38,316,202)
Increase (decrease) in other comprehensive income	2,811,360	(10,117)
Acquisitions Through Business Combinations		(37,094,304)
Foreign currency translation	1,330,258	(6,537,629)
Other increases (decreases)	(5,967,069)	(8,613,077)
Ending balance	(227,436,402)	(258,908,824)	$ (169,385,889)
Deferred Tax Assets Liabilities [Member] | Compensation of Assets (Liabilities) for deferred taxes [Member]
Disclosure Of Income Taxes [Line Items]
Assets	186,444,559	102,876,176
Liabilities	$ (186,444,559)	$ (102,876,176)

Income Tax and Deferred Taxes_4

Income Tax and Deferred Taxes - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Disclosure Of Income Taxes [Line Items]
Unrecognized deferred tax assets tax loss carryforwards	$ 4,625,940	$ 3,930,370
Temporary differences associated with investments in subsidiaries and joint ventures	1,323,714,721	896,532,229
Deferred tax asset not recognized for deductible temporary differences	$ 691,241,687	$ 744,768,294
Applicable tax rate under integrated system				24.00%	22.50%	21.00%
2017
Disclosure Of Income Taxes [Line Items]
Applicable tax rate under integrated system			25.00%
Applicable Tax Rate Under Partially Integrated System		25.50%
2018
Disclosure Of Income Taxes [Line Items]
Applicable Tax Rate Under Partially Integrated System	27.00%

Income Tax and Deferred Taxes_5

Income Tax and Deferred Taxes - Effects of Deferred Tax on Components of Other Comprehensive Income (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amount Before Income Tax
Available-for-sale financial assets	$ (3,673)	$ (411)	$ 1,840
Cash flow hedge	(139,174,121)	(221,906,855)	97,558,961
Share of other comprehensive income from associates and joint ventures accounted for using the equity method			(1,490)
Foreign currency translation	73,114,966	107,492,316	(3,686,549)
Actuarial gains(losses) on defined-benefit pension plans	(7,777,204)	37,881	1,716,875
Other comprehensive income (loss), before taxes	(73,840,032)	(114,377,069)	95,589,637
Income Tax Relating To Components Of Other Comprehensive Income [Abstract]
Income tax related to available-for-sale financial assets	992	111	(497)
Income tax related to cash flow hedge	36,883,401	60,650,786	(25,701,599)
Income tax related to defined benefit plans	2,099,845	(10,228)	(463,556)
Income tax related to components of other comprehensive income	38,984,238	60,640,669	(26,165,652)
Amount After Income Tax
Available-for-sale financial assets	(2,681)	(300)	1,343
Cash flow hedge	(102,290,720)	(161,256,069)	71,857,362
Share of other comprehensive income from associates and joint ventures accounted for using the equity method			(1,490)
Foreign currency translation	73,114,966	107,492,316	(3,686,549)
Actuarial gains(losses) on defined-benefit pension plans	(5,677,359)	27,653	1,253,319
Total Other Comprehensive Income (Loss)	$ (34,855,794)	$ (53,736,400)	$ 69,423,985

Income Tax and Deferred Taxes_6

Income Tax and Deferred Taxes - Movements in Deferred Taxes for Components of Other Comprehensive Income (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Relating To Components Of Other Comprehensive Income [Abstract]
Total increases (decreases) for deferred taxes of other comprehensive income from continuing operations	$ 2,811,360	$ (10,117)	$ (464,053)
Income tax of changes in cash flow hedge transactions	(36,172,878)	(60,650,786)	25,701,599
Income tax related to components of other comprehensive income	$ 38,984,238	$ 60,640,669	$ (26,165,652)

Other Financial Liabilities - S

Other Financial Liabilities - Schedule of Balances of Other Financial Liabilities (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	$ 214,656,576	$ 410,665,815
Other financial liabilities, Non-current	1,740,169,919	1,705,833,503
Interest-Bearing Borrowings [Member]
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	164,404,334	329,262,093
Other financial liabilities, Non-current	1,714,837,545	1,703,044,158
Hedging Derivatives [Member]
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	48,225,766	81,195,765
Other financial liabilities, Non-current	25,208,326	2,629,715
Non-Hedging Derivatives [Member]
Disclosure Of Financial Liabilities [Line Items]
Other financial liabilities, Current	2,026,476	207,957
Other financial liabilities, Non-current	$ 124,048	$ 159,630

Other Financial Liabilities -_2

Other Financial Liabilities - Schedule of Interest-bearing Borrowings (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 164,404,334	$ 329,262,093
Non-current, Maturity	1,714,837,545	1,703,044,158
Bank Loans [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	113,247,263	70,790,775
Non-current, Maturity	135,297,019	229,020,029
Unsecured Obligations [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	5	212,736,914
Unsecured Obligations With The Public [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	45,315,051	43,568,129
Non-current, Maturity	1,531,974,852	1,461,713,954
Finance Leases [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	5,842,015	2,166,275
Non-current, Maturity	$ 47,565,674	$ 12,310,175

Other Financial Liabilities -_3

Other Financial Liabilities - Summary of Bank Loans by Currency Maturity (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 113,247,268	$ 283,527,689
Non-current, Maturity	135,297,019	229,020,029
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	112,747,516
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 22,549,503	104,100,014
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 124,920,015
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Non-current, Maturity		$ 229,020,029
Bank Loans [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 113,247,268	283,527,689
Non-current, Maturity		229,020,029
Bank Loans [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	134,537	1,350,867
Bank Loans [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	113,112,731	282,176,822
Bank Loans [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	112,747,516
Bank Loans [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 22,549,503	104,100,014
Bank Loans [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 124,920,015
Bank Loans [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	3.31%	3.51%
Nominal Interest Rate	3.31%	3.51%
Current, Maturity	$ 113,247,263	$ 70,790,775
Non-current, Maturity	$ 135,297,019
Bank Loans [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	4.71%
Nominal Interest Rate	6.00%	4.30%
Current, Maturity	$ 5	$ 212,736,914
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	134,532	1,350,861
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	5	6
Bank Loans [Member] | Chile [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	113,112,731	69,439,914
Bank Loans [Member] | Chile [Member] | Three Months to Twelve Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		212,736,908
Bank Loans [Member] | Chile [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	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	104,100,014
Bank Loans [Member] | Chile [Member] | Three to Four Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 124,920,015

Other Financial Liabilities - A

Other Financial Liabilities - Additional Information (Detail) - CLP ($)	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Secured liabilities	$ 0	$ 0
Undrawn line of credits	146,268,500,000	416,862,000,000
Cash flow hedge [Member]
Disclosure Of Financial Liabilities [Line Items]
Borrowings	1,585,140,233,000	1,192,973,584,000
Level 2 [Member]
Disclosure Of Financial Liabilities [Line Items]
Fair value of current and non-current unsecured liabilities	1,941,481,412,000	1,685,679,241,000
Bank Loans [Member] | Level 2 [Member]
Disclosure Of Financial Liabilities [Line Items]
Borrowings	$ 247,030,075,000	$ 509,822,541,000

Other Financial Liabilities -_4

Other Financial Liabilities - Summary of Identification of Bank Borrowings by Company (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 113,247,268	$ 283,527,689
Non-current, Maturity	$ 135,297,019	$ 229,020,029
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	$ 4	$ 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	$ 2
Banco Santander [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	3.85%	3.85%
Nominal Interest Rate	3.17%	3.17%
Current, Maturity	$ 0	$ 65,829,996
Banco de Chile [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	3.85%	3.85%
Nominal Interest Rate	3.17%	3.17%
Current, Maturity	$ 0	$ 73,453,456
Scotiabank Chile [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	3.85%	3.85%
Nominal Interest Rate	3.17%	3.17%
Current, Maturity	$ 0	$ 73,453,456
Scotiabank Chile [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	4.17%
Nominal Interest Rate	4.17%
Current, Maturity	$ 112,882,048
Scotiabank Chile [Member] | Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	4.25%
Nominal Interest Rate	4.25%
Current, Maturity	$ 321,995
Non-current, Maturity	$ 112,747,516
Scotiabank Chile One [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	4.14%
Nominal Interest Rate	4.14%
Current, Maturity	$ 0
Banco Bilbao Vizcaya Argentaria [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate		4.14%
Nominal Interest Rate		4.14%
Current, Maturity		$ 70,214,637
Banco Bilbao Vizcaya Argentaria [Member] | Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate		4.25%
Nominal Interest Rate		4.25%
Current, Maturity		$ 377,320
Non-current, Maturity		$ 104,100,013
Banco Bilbao Vizcaya Argentaria One [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate		4.17%
Nominal Interest Rate		4.17%
Current, Maturity		$ 158,913
Non-current, Maturity		$ 104,100,014
Inter-American Development Banl (BID) [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	1.50%	1.50%
Nominal Interest Rate	1.50%	1.50%
Current, Maturity	$ 43,220	$ 39,905
Non-current, Maturity	22,549,503	20,820,002
More than 90 Days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	113,112,731	282,176,822
More than 90 Days [Member] | Banco Santander [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		65,829,996
More than 90 Days [Member] | Banco de Chile [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		73,453,456
More than 90 Days [Member] | Scotiabank Chile [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		73,453,456
More than 90 Days [Member] | Scotiabank Chile [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	112,747,516
More than 90 Days [Member] | Scotiabank Chile [Member] | Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	321,995
More than 90 Days [Member] | Banco Bilbao Vizcaya Argentaria [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		69,400,009
More than 90 Days [Member] | Inter-American Development Banl (BID) [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	43,220	39,905
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	112,747,516
One to Two Years [Member] | Scotiabank Chile [Member] | Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	112,747,516
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	22,549,503	104,100,014
Two to Three Years [Member] | Banco Bilbao Vizcaya Argentaria One [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		104,100,014
Two to Three Years [Member] | Inter-American Development Banl (BID) [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	22,549,503
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		124,920,015
Three to Four Years [Member] | Banco Bilbao Vizcaya Argentaria [Member] | Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		104,100,013
Three to Four Years [Member] | Inter-American Development Banl (BID) [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		20,820,002
Less than 90 Days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	134,537	1,350,867
Less than 90 Days [Member] | Banco Santander [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4	4
Less than 90 Days [Member] | Banco Santander [Member] | Enel Distribucion Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	1	2
Less than 90 Days [Member] | Scotiabank Chile [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 134,532
Less than 90 Days [Member] | Banco Bilbao Vizcaya Argentaria [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		814,628
Less than 90 Days [Member] | Banco Bilbao Vizcaya Argentaria [Member] | Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		377,320
Less than 90 Days [Member] | Banco Bilbao Vizcaya Argentaria One [Member] | Enel Green Power Chile Ltda. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		$ 158,913

Other Financial Liabilities -_5

Other Financial Liabilities - Summary of Unsecured Liabilities by Currency and Maturity (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 45,315,051	$ 43,568,129
Non-current, Maturity	$ 1,531,974,852	$ 1,461,713,954
U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.59%	6.59%
Nominal Annual Rate	6.49%	6.49%
Current, Maturity	$ 12,455,049	$ 11,426,035
Non-current, Maturity	$ 1,257,939,794	$ 1,164,595,519
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	$ 32,860,002	$ 32,142,094
Non-current, Maturity	274,035,058	297,118,435
One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	7,700,030	7,144,997
One to Three Months [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	7,700,030	7,144,997
Three to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	37,615,021	36,423,132
Three to Twelve Months [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	4,755,019	4,281,038
Three to Twelve Months [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	32,860,002	32,142,094
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
One to Two Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Two to Three Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Three to Four Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	328,045,479	30,793,493
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	31,624,776	30,793,493
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	1,109,055,045	1,338,539,982
More Than Five Years [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	961,519,091	1,164,595,519
More Than Five Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 147,535,954	$ 173,944,463

Other Financial Liabilities -_6

Other Financial Liabilities - Summary of Unsecured Liabilities by Company (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 45,315,051	$ 43,568,129
Non-current, Maturity	$ 1,531,974,852	$ 1,461,713,954
U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.59%	6.59%
Nominal Interest Rate	6.49%	6.49%
Current, Maturity	$ 12,455,049	$ 11,426,035
Non-current, Maturity	$ 1,257,939,794	$ 1,164,595,519
Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	6.00%
Nominal Interest Rate	5.48%	5.48%
Current, Maturity	$ 32,860,002	$ 32,142,094
Non-current, Maturity	274,035,058	297,118,435
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
One to Two Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Two to Three Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Three to Four Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	328,045,479	30,793,493
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	31,624,776	30,793,493
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	1,109,055,045	1,338,539,982
More Than Five Years [Member] | U.S. Dollar [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	961,519,091	1,164,595,519
More Than Five Years [Member] | Unidades de Fomento [Member] | Chile [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	147,535,954	173,944,463
Less than 90 Days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	7,700,030	7,144,997
More than 90 Days [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 37,615,021	$ 36,423,132
BNY Mellon -Primera Emision S-1 [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	7.96%	7.96%
Nominal Interest Rate	7.88%	7.88%
Current, Maturity	$ 5,058,091	$ 4,693,498
Non-current, Maturity	153,480,285	142,300,747
BNY Mellon -Primera Emision S-1 [Member] | More Than Five Years [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	153,480,285	142,300,747
BNY Mellon -Primera Emision S-1 [Member] | Less than 90 Days [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 5,058,091	$ 4,693,498
BNY Mellon - Primera Emision S-2 [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	7.40%	7.40%
Nominal Interest Rate	7.33%	7.33%
Current, Maturity	$ 1,617,476	$ 1,500,880
Non-current, Maturity	51,960,662	48,131,124
BNY Mellon - Primera Emision S-2 [Member] | More Than Five Years [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	51,960,662	48,131,124
BNY Mellon - Primera Emision S-2 [Member] | Less than 90 Days [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 1,617,476	$ 1,500,880
BNY Mellon Primera Emision Three [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	8.26%	8.26%
Nominal Interest Rate	8.13%	8.13%
Current, Maturity	$ 1,024,463	$ 950,619
Non-current, Maturity	24,876,133	22,694,249
BNY Mellon Primera Emision Three [Member] | More Than Five Years [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	24,876,133	22,694,249
BNY Mellon Primera Emision Three [Member] | Less than 90 Days [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 1,024,463	$ 950,619
BNY Mellon - Unica 24296 [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	4.32%	4.32%
Nominal Interest Rate	4.25%	4.25%
Current, Maturity	$ 2,828,573	$ 2,493,452
Non-current, Maturity	296,420,703	274,469,150
BNY Mellon - Unica 24296 [Member] | Four to Five Years [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	296,420,703
BNY Mellon - Unica 24296 [Member] | More Than Five Years [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		274,469,150
BNY Mellon - Unica 24296 [Member] | More than 90 Days [Member] | U.S. Dollar [Member] | US [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 2,828,573	$ 2,493,452
Banco Santander -317 Serie-H [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	7.17%	7.17%
Nominal Interest Rate	6.20%	6.20%
Current, Maturity	$ 6,592,332	$ 6,513,162
Non-current, Maturity	43,982,519	48,321,664
Banco Santander -317 Serie-H [Member] | One to Two Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	5,888,467	5,733,684
Banco Santander -317 Serie-H [Member] | Two to Three Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	5,888,467	5,733,684
Banco Santander -317 Serie-H [Member] | Three to Four Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	5,888,467	5,733,684
Banco Santander -317 Serie-H [Member] | Four to Five Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	5,888,467	5,733,684
Banco Santander -317 Serie-H [Member] | More Than Five Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	20,428,651	25,386,928
Banco Santander -317 Serie-H [Member] | More than 90 Days [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 6,592,332	$ 6,513,162
Banco Santander 522 Serie-M [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	4.82%	4.82%
Nominal Interest Rate	4.75%	4.75%
Current, Maturity	$ 26,267,670	$ 25,628,932
Non-current, Maturity	230,052,539	248,796,771
Banco Santander 522 Serie-M [Member] | One to Two Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	25,736,309	25,059,809
Banco Santander 522 Serie-M [Member] | Two to Three Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	25,736,309	25,059,809
Banco Santander 522 Serie-M [Member] | Three to Four Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	25,736,309	25,059,809
Banco Santander 522 Serie-M [Member] | Four to Five Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	25,736,309	25,059,809
Banco Santander 522 Serie-M [Member] | More Than Five Years [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	127,107,303	148,557,535
Banco Santander 522 Serie-M [Member] | More than 90 Days [Member] | Unidades de Fomento [Member] | Chile [Member] | Enel Generación Chile S.A. [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 26,267,670	$ 25,628,932
BNY Mellon - Unica [Member] | U.S. Dollar [Member] | US [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	5.03%	5.03%
Nominal Interest Rate	4.88%	4.88%
Current, Maturity	$ 1,926,446	$ 1,787,586
Non-current, Maturity	731,202,011	677,000,249
BNY Mellon - Unica [Member] | More Than Five Years [Member] | U.S. Dollar [Member] | US [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	731,202,011	677,000,249
BNY Mellon - Unica [Member] | More than 90 Days [Member] | U.S. Dollar [Member] | US [Member] | Enel Chile S.A [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 1,926,446	$ 1,787,586

Other Financial Liabilities -_7

Other Financial Liabilities - Summary of Detail of Finance Lease Obligations (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	$ 5,842,015	$ 2,166,275
Non current finance lease obligations	$ 47,565,674	$ 12,310,175
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Chile [Member] | Unidades de Fomento [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	5.48%	5.48%
Less than 90 Days [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	$ 1,512,244	$ 528,847
More than 90 Days [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,329,771	1,637,428
One to Two Years [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	4,515,822	2,307,082
Two to Three Years [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	4,565,526	2,457,043
Three to Four Years [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	7,061,634	2,616,750
Four to Five Years [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,783,940	$ 4,929,300
More Than Five Years [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 29,638,752
Enel Generación Chile S.A. [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	6.50%	6.50%
Current finance lease liabilities	$ 2,486,297	$ 2,166,275
Non current finance lease obligations	$ 10,780,138	12,310,175
Enel Generación Chile S.A. [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.06%
Current finance lease liabilities	$ 17,304
Non current finance lease obligations	$ 282,168
Enel Generación Chile S.A. [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.09%
Current finance lease liabilities	$ 37,260
Non current finance lease obligations	$ 549,960
Enel Generación Chile S.A. [Member] | Chile [Member] | Empresa De Ferrocarriles Del Estado [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.07%
Current finance lease liabilities	$ 1,661
Non current finance lease obligations	$ 1,123
Enel Generación Chile S.A. [Member] | Chile [Member] | Agricola El Bagual Ltda. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.91%
Current finance lease liabilities	$ 1,152
Non current finance lease obligations	$ 1,718
Enel Generación Chile S.A. [Member] | Chile [Member] | Rentaequipos Tramaca S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	0.83%
Current finance lease liabilities	$ 144,436
Enel Generación Chile S.A. [Member] | Chile [Member] | Compañía De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	0.83%
Current finance lease liabilities	$ 6,607
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	606,973	528,847
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,067
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	12,399
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Empresa De Ferrocarriles Del Estado [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	1,104
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Agricola El Bagual Ltda. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	1,152
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Rentaequipos Tramaca S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	144,436
Enel Generación Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Compañía De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	6,607
Enel Generación Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	1,879,324	1,637,428
Enel Generación Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	13,237
Enel Generación Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	24,861
Enel Generación Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Empresa De Ferrocarriles Del Estado [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	557
Enel Generación Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,647,907	2,307,082
Enel Generación Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	17,966
Enel Generación Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	33,755
Enel Generación Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Empresa De Ferrocarriles Del Estado [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,123
Enel Generación Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Agricola El Bagual Ltda. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	564
Enel Generación Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,820,020	2,457,043
Enel Generación Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,335
Enel Generación Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	34,460
Enel Generación Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Agricola El Bagual Ltda. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	573
Enel Generación Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	5,312,211	2,616,750
Enel Generación Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,713
Enel Generación Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	35,182
Enel Generación Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Agricola El Bagual Ltda. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	581
Enel Generación Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Transelec S A [Member] | U.S. Dollar [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations		$ 4,929,300
Enel Generación Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	19,097
Enel Generación Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	35,917
Enel Generación Chile S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Marcelo Alberto Amar Basulto [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	208,057
Enel Generación Chile S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Productos Fernandez S.A.[Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 410,646
Enel Distribucion Chile S.A. [Member] | Nuria Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 11,865
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Inmobiliaria El Roble S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.41%
Current finance lease liabilities	$ 53,852
Non current finance lease obligations	$ 48,574
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Juana Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 11,865
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Carmen Elvira Echavarry De La Sierra [Member] [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 11,865
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Jorge Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 11,865
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Carmen Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 11,865
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.91%
Current finance lease liabilities	$ 59,264
Non current finance lease obligations	$ 363,876
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.91%
Current finance lease liabilities	$ 48,490
Non current finance lease obligations	$ 297,471
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Inversiones Tapihue Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 10,501
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Bcycle Latam S.P.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	6.24%
Current finance lease liabilities	$ 20,000
Non current finance lease obligations	$ 68,922
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Rentas Inmobiliarias Amanecer S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.56%
Current finance lease liabilities	$ 36,918
Non current finance lease obligations	$ 66,073
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	5.99%
Current finance lease liabilities	$ 350,227
Non current finance lease obligations	$ 1,974,689
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Rentaequipos Leasing S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 774
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Compania De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.41%
Current finance lease liabilities	$ 6,991
Non current finance lease obligations	$ 4,544
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Inversiones Don Issa Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.67%
Current finance lease liabilities	$ 68,021
Non current finance lease obligations	$ 165,789
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Inmobilaria Mixto Renta Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.07%
Current finance lease liabilities	$ 16,530
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Companis De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.41%
Current finance lease liabilities	$ 3,670
Non current finance lease obligations	$ 652
Enel Distribucion Chile S.A. [Member] | Chile [Member] | Compania De Leasing Tattersall S A. One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.41%
Current finance lease liabilities	$ 4,219
Non current finance lease obligations	2,736
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Nuria Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,244
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Inmobiliaria El Roble S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	12,589
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Juana Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,244
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Carmen Elvira Echavarry De La Sierra [Member] [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,244
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Jorge Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,244
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Carmen Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	4,244
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	13,990
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	11,479
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Inversiones Tapihue Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	10,501
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Rentas Inmobiliarias Amanecer S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	12,239
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Rentaequipos Leasing S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	774
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Compania De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	1,628
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Inversiones Don Issa Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	16,118
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Inmobilaria Mixto Renta Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	16,530
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Companis De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	278
Enel Distribucion Chile S.A. [Member] | Less than 90 Days [Member] | Chile [Member] | Compania De Leasing Tattersall S A. One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	988
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Nuria Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,621
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Inmobiliaria El Roble S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	41,263
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Juana Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,621
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Carmen Elvira Echavarry De La Sierra [Member] [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,621
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Jorge Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,621
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Carmen Ferrer Pares [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,621
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	45,274
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	37,011
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Bcycle Latam S.P.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	20,000
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Rentas Inmobiliarias Amanecer S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	24,679
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	350,227
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Compania De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	5,363
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Inversiones Don Issa Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	51,903
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Companis De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	3,392
Enel Distribucion Chile S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Compania De Leasing Tattersall S A. One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	3,231
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Inmobiliaria El Roble S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	48,574
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	61,373
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	50,173
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Bcycle Latam S.P.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	15,699
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Rentas Inmobiliarias Amanecer S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	51,480
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	114,222
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Compania De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	4,544
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Inversiones Don Issa Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	70,215
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Companis De Leasing Tattersall S A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	652
Enel Distribucion Chile S.A. [Member] | One to Two Years [Member] | Chile [Member] | Compania De Leasing Tattersall S A. One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,736
Enel Distribucion Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	62,545
Enel Distribucion Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	51,131
Enel Distribucion Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Bcycle Latam S.P.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	16,679
Enel Distribucion Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Rentas Inmobiliarias Amanecer S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	14,593
Enel Distribucion Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	120,634
Enel Distribucion Chile S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Inversiones Don Issa Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	71,388
Enel Distribucion Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	63,741
Enel Distribucion Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	52,108
Enel Distribucion Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Bcycle Latam S.P.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	17,719
Enel Distribucion Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	130,857
Enel Distribucion Chile S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Inversiones Don Issa Ltda [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	24,186
Enel Distribucion Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	64,959
Enel Distribucion Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	53,104
Enel Distribucion Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Bcycle Latam S.P.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,825
Enel Distribucion Chile S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	132,426
Enel Distribucion Chile S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Mutual De Seguros De Chile [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	111,258
Enel Distribucion Chile S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Capital Investi [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	90,955
Enel Distribucion Chile S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Empresa De Transporte De Pasajeros Metro S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 1,476,550
Enel Green Power Chile Ltda. [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 76,055
Non current finance lease obligations	$ 1,337,757
Enel Green Power Chile Ltda. [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 117,630
Non current finance lease obligations	$ 1,244,702
Enel Green Power Chile Ltda. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 29,696
Non current finance lease obligations	$ 508,935
Enel Green Power Chile Ltda. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 29,189
Non current finance lease obligations	629,920
Enel Green Power Chile Ltda. [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	76,055
Enel Green Power Chile Ltda. [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	29,696
Enel Green Power Chile Ltda. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	117,630
Enel Green Power Chile Ltda. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	29,189
Enel Green Power Chile Ltda. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	43,584
Enel Green Power Chile Ltda. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	42,842
Enel Green Power Chile Ltda. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	16,622
Enel Green Power Chile Ltda. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	19,513
Enel Green Power Chile Ltda. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	44,691
Enel Green Power Chile Ltda. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	43,930
Enel Green Power Chile Ltda. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	17,044
Enel Green Power Chile Ltda. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	20,009
Enel Green Power Chile Ltda. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	45,827
Enel Green Power Chile Ltda. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	45,047
Enel Green Power Chile Ltda. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	17,477
Enel Green Power Chile Ltda. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	20,517
Enel Green Power Chile Ltda. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	46,991
Enel Green Power Chile Ltda. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	46,191
Enel Green Power Chile Ltda. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	17,921
Enel Green Power Chile Ltda. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	21,038
Enel Green Power Chile Ltda. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,156,664
Enel Green Power Chile Ltda. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,066,692
Enel Green Power Chile Ltda. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Two [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	439,871
Enel Green Power Chile Ltda. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Three [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 548,843
Empresa Eléctrica Panguipulli S.A. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	5.02%
Current finance lease liabilities	$ 260,072
Non current finance lease obligations	$ 3,253,694
Empresa Eléctrica Panguipulli S.A. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	6.39%
Current finance lease liabilities	$ 98,189
Non current finance lease obligations	$ 2,176,366
Empresa Eléctrica Panguipulli S.A. [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	6.39%
Current finance lease liabilities	$ 46,597
Non current finance lease obligations	1,239,306
Empresa Eléctrica Panguipulli S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	260,072
Empresa Eléctrica Panguipulli S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	98,189
Empresa Eléctrica Panguipulli S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	46,597
Empresa Eléctrica Panguipulli S.A. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	167,261
Empresa Eléctrica Panguipulli S.A. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	70,885
Empresa Eléctrica Panguipulli S.A. [Member] | One to Two Years [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	54,543
Empresa Eléctrica Panguipulli S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	175,655
Empresa Eléctrica Panguipulli S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	72,686
Empresa Eléctrica Panguipulli S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	55,929
Empresa Eléctrica Panguipulli S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	184,471
Empresa Eléctrica Panguipulli S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	74,533
Empresa Eléctrica Panguipulli S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	57,350
Empresa Eléctrica Panguipulli S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	193,729
Empresa Eléctrica Panguipulli S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	76,427
Empresa Eléctrica Panguipulli S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	58,807
Empresa Eléctrica Panguipulli S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Four [ Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,532,578
Empresa Eléctrica Panguipulli S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Five [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,881,835
Empresa Eléctrica Panguipulli S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Inmobiliaria Terra Australis Tres S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 1,012,677
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 36,519
Non current finance lease obligations	$ 837,236
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 26,329
Non current finance lease obligations	$ 603,551
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 30,727
Non current finance lease obligations	$ 704,475
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 27,615
Non current finance lease obligations	$ 632,943
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 3,738
Non current finance lease obligations	$ 85,734
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 47,317
Non current finance lease obligations	$ 1,376,020
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 31,087
Non current finance lease obligations	$ 592,891
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 29,105
Non current finance lease obligations	$ 540,812
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 628
Non current finance lease obligations	$ 11,761
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 1,331
Non current finance lease obligations	$ 23,428
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.87%
Current finance lease liabilities	$ 472,736
Non current finance lease obligations	$ 5,313,405
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 111,365
Non current finance lease obligations	$ 1,731,269
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 7,914
Non current finance lease obligations	$ 112,695
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 15,877
Non current finance lease obligations	$ 213,474
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 3,961
Non current finance lease obligations	$ 56,343
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 31,828
Non current finance lease obligations	$ 426,576
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Alicia Freire Hermosilla [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.31%
Current finance lease liabilities	$ 93,160
Non current finance lease obligations	$ 88,809
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 31,828
Non current finance lease obligations	$ 426,577
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 15,918
Non current finance lease obligations	$ 219,292
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 41,389
Non current finance lease obligations	$ 576,277
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 5,605
Non current finance lease obligations	$ 75,938
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 95,241
Non current finance lease obligations	$ 1,316,893
Enel Green Power del Sur SPA. [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.94%
Current finance lease liabilities	$ 7,935
Non current finance lease obligations	109,743
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	31,087
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	29,105
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	628
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,914
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	15,877
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	3,961
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	31,828
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Alicia Freire Hermosilla [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	93,160
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	31,828
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	15,918
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	41,389
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	5,605
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	95,241
Enel Green Power del Sur SPA. [Member] | Less than 90 Days [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	7,935
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	36,519
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	26,329
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	30,727
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	27,615
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	3,738
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	47,317
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	1,331
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	472,736
Enel Green Power del Sur SPA. [Member] | More than 90 Days [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	111,365
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	27,274
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	19,661
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	22,949
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	20,619
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,793
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	44,688
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,256
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	17,619
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	383
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	683
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	227,365
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	67,592
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,949
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	6,496
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,474
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	12,991
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Alicia Freire Hermosilla [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	88,809
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	12,991
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	6,190
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	13,058
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,141
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	37,137
Enel Green Power del Sur SPA. [Member] | One to Two Years [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,095
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	27,967
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	20,161
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	23,532
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	21,143
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,864
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	45,824
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,720
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,066
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	393
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	700
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	238,428
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	69,309
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,095
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	6,817
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,547
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	13,633
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	13,633
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	6,496
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	13,704
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,247
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	38,973
Enel Green Power del Sur SPA. [Member] | Two to Three Years [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,248
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	28,677
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	20,673
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	24,130
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	21,680
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,937
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	46,988
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	19,195
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,525
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	403
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	718
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	250,031
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	71,070
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,248
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	7,154
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,624
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	14,307
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	14,307
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	6,817
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	14,381
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,359
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	40,900
Enel Green Power del Sur SPA. [Member] | Three to Four Years [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,408
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	29,406
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	21,198
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	24,743
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	22,231
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,011
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	48,182
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	19,683
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	18,996
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	413
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	736
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	262,197
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	72,876
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,408
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	7,507
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,704
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	15,015
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	15,015
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	7,154
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	15,092
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	2,475
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	42,922
Enel Green Power del Sur SPA. [Member] | Four to Five Years [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	3,577
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Six [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	723,912
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Seven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	521,858
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eight [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	609,121
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Nine [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	547,270
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ten [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	74,129
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eleven [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,190,338
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twelve [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	517,037
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Thirteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	467,606
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fourteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	10,169
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Fifteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	20,591
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Sixteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	4,335,384
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Fundo Los Buenos Aires Spa [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,450,422
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Federico Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	99,995
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Juan Rioseco Garcia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	185,500
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Juan Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	49,994
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Adriana Castro Parra [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	370,630
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Agricola Santa Amalia [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	370,631
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Orafti Chile S.A. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	192,635
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Siventeen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	520,042
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Sociedad Agricola Parant [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	66,716
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Sociedad Agricola Parant One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	1,156,961
Enel Green Power del Sur SPA. [Member] | More Than Five Years [Member] | Chile [Member] | Federico Rioseco Garcia One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 96,415
Parque Eólico Tal Tal SpA [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.36%
Current finance lease liabilities	$ 32,269
Non current finance lease obligations	$ 406,593
Parque Eólico Tal Tal SpA [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.94%
Current finance lease liabilities	$ 35,334
Non current finance lease obligations	1,127,649
Parque Eólico Tal Tal SpA [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	32,269
Parque Eólico Tal Tal SpA [Member] | More than 90 Days [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	35,334
Parque Eólico Tal Tal SpA [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	22,884
Parque Eólico Tal Tal SpA [Member] | One to Two Years [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	35,034
Parque Eólico Tal Tal SpA [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	23,424
Parque Eólico Tal Tal SpA [Member] | Two to Three Years [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	36,064
Parque Eólico Tal Tal SpA [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	23,978
Parque Eólico Tal Tal SpA [Member] | Three to Four Years [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	37,124
Parque Eólico Tal Tal SpA [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	24,545
Parque Eólico Tal Tal SpA [Member] | Four to Five Years [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	38,215
Parque Eólico Tal Tal SpA [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Eighteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	311,762
Parque Eólico Tal Tal SpA [Member] | More Than Five Years [Member] | Chile [Member] | Soc. Serv. Com.. Multiservice F.L. [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 981,212
Parque Eólico Valle de los Vientos SpA [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.23%
Current finance lease liabilities	$ 48,681
Non current finance lease obligations	413,967
Parque Eólico Valle de los Vientos SpA [Member] | Less than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	48,681
Parque Eólico Valle de los Vientos SpA [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	37,594
Parque Eólico Valle de los Vientos SpA [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	38,433
Parque Eólico Valle de los Vientos SpA [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	39,291
Parque Eólico Valle de los Vientos SpA [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	40,168
Parque Eólico Valle de los Vientos SpA [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Twenty [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 258,481
Parque Eólico Talinay Oriente S.A. [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	4.61%
Current finance lease liabilities	$ 367,982
Non current finance lease obligations	3,816,105
Parque Eólico Talinay Oriente S.A. [Member] | More than 90 Days [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	367,982
Parque Eólico Talinay Oriente S.A. [Member] | One to Two Years [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	201,806
Parque Eólico Talinay Oriente S.A. [Member] | Two to Three Years [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	211,109
Parque Eólico Talinay Oriente S.A. [Member] | Three to Four Years [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	220,842
Parque Eólico Talinay Oriente S.A. [Member] | Four to Five Years [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	231,022
Parque Eólico Talinay Oriente S.A. [Member] | More Than Five Years [Member] | Chile [Member] | Agricola Alto Talinay [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 2,951,326
Almeyda Solar Spa [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	2.54%
Current finance lease liabilities	$ 34,408
Non current finance lease obligations	726,105
Almeyda Solar Spa [Member] | More than 90 Days [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	34,408
Almeyda Solar Spa [Member] | One to Two Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	25,058
Almeyda Solar Spa [Member] | Two to Three Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	25,694
Almeyda Solar Spa [Member] | Three to Four Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	26,347
Almeyda Solar Spa [Member] | Four to Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	27,017
Almeyda Solar Spa [Member] | More Than Five Years [Member] | Chile [Member] | Ministerio De Bienes Nacionales Ninteen [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Non current finance lease obligations	$ 621,989
Enel Chile S.A [Member] | Chile [Member] | Inversiones Cardinal S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 34,082
Enel Chile S.A [Member] | Chile [Member] | Inversiones Cardinal S.A One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Nominal Interest Rate	1.20%
Current finance lease liabilities	$ 29,179
Enel Chile S.A [Member] | Less than 90 Days [Member] | Chile [Member] | Inversiones Cardinal S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	9,281
Enel Chile S.A [Member] | Less than 90 Days [Member] | Chile [Member] | Inversiones Cardinal S.A One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	9,714
Enel Chile S.A [Member] | More than 90 Days [Member] | Chile [Member] | Inversiones Cardinal S.A [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	24,801
Enel Chile S.A [Member] | More than 90 Days [Member] | Chile [Member] | Inversiones Cardinal S.A One [Member]
Disclosure Of Other Financial Liabilities [Line Items]
Current finance lease liabilities	$ 19,465

Other Financial Liabilities -_8

Other Financial Liabilities - Summary of Changes in Reserve for Cash Flow Hedges (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Other Financial Liabilities [Line Items]
Foreign currency exchange differences recognized in profit and loss, net	$ (10,412,110)	$ (7,807,197)	$ 8,516,874
Reserve for Cash Flow Hedges
Disclosure Of Other Financial Liabilities [Line Items]
Balance in hedging reserves (hedging income) at the beginning of the period, net	(127,508,852)	(27,168,007)	(52,747,645)
Foreign currency exchange differences recognized in equity, net	(77,347,380)	(101,790,308)	17,321,594
Foreign currency exchange differences recognized in profit and loss, net	15,042,823	12,478,369	8,258,044
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	$ (189,813,409)	$ (127,508,852)	$ (27,168,007)

Other Financial Liabilities -_9

Other Financial Liabilities - Summary of Estimates of Undiscounted Flows of Bank Loans (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 113,247,268	$ 283,527,689
Non-current, Maturity	135,297,019	229,020,029
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	112,747,516
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 22,549,503	104,100,014
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 124,920,015
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Non-current, Maturity		$ 229,020,029
Bank Loans [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 113,247,268	283,527,689
Non-current, Maturity		229,020,029
Bank Loans [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	134,537	1,350,867
Bank Loans [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	113,112,731	282,176,822
Bank Loans [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	112,747,516
Bank Loans [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 22,549,503	104,100,014
Bank Loans [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		$ 124,920,015
Bank Loans [Member] | Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	3.31%	3.51%
Nominal Interest Rate	3.31%	3.51%
Current, Maturity	$ 113,247,263	$ 70,790,775
Non-current, Maturity	$ 135,297,019
Bank Loans [Member] | Chile [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%	4.71%
Nominal Interest Rate	6.00%	4.30%
Current, Maturity	$ 5	$ 212,736,914
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	134,532	1,350,861
Bank Loans [Member] | Chile [Member] | One to Three Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	5	6
Bank Loans [Member] | Chile [Member] | Three Months to Twelve Months [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	113,112,731	69,439,914
Bank Loans [Member] | Chile [Member] | Three Months to Twelve Months [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity		212,736,908
Bank Loans [Member] | Chile [Member] | One to Two Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	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	104,100,014
Bank Loans [Member] | Chile [Member] | Three to Four Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		124,920,015
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	122,917,871	294,779,444
Non-current, Maturity	$ 140,980,898	238,357,658
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	3.31%
Current, Maturity	$ 122,917,866	77,060,229
Non-current, Maturity	$ 140,980,898	238,357,658
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Chilean Peso [Member]
Disclosure Of Financial Liabilities [Line Items]
Effective Interest Rate	6.00%
Current, Maturity	$ 5	217,719,215
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	2,542,593	3,784,620
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	2,542,588	1,985,915
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	5	1,798,705
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	120,375,278	290,994,824
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	120,375,278	75,074,314
Bank Loans [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		215,920,510
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	118,121,339	110,909,917
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	118,121,339	110,909,917
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	106,335,361
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	106,335,361
Bank Loans [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity		21,112,380
Bank Loans [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		$ 21,112,380

Other Financial Liabilities _10

Other Financial Liabilities - Summary of Estimates of Undiscounted Flows of Guaranteed and Unsecured Obligations (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	$ 45,315,051	$ 43,568,129
Non-current, Maturity	1,531,974,852	1,461,713,954
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	328,045,479	30,793,493
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 1,109,055,045	$ 1,338,539,982
Chile [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	6.49%	6.49%
Current, Maturity	$ 12,455,049	$ 11,426,035
Non-current, Maturity	$ 1,257,939,794	$ 1,164,595,519
Chile [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	5.48%	5.48%
Current, Maturity	$ 32,860,002	$ 32,142,094
Non-current, Maturity	274,035,058	297,118,435
Chile [Member] | One to Two Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Chile [Member] | Two to Three Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Chile [Member] | Three to Four Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Chile [Member] | Four to Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	296,420,703
Chile [Member] | Four to Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	31,624,776	30,793,493
Chile [Member] | More Than Five Years [Member] | U.S. Dollar [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	961,519,091	1,164,595,519
Chile [Member] | More Than Five Years [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	147,535,954	173,944,463
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	126,576,171	121,170,006
Non-current, Maturity	2,346,995,903	2,297,392,177
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	23,886,392	22,777,284
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	102,689,779	98,392,722
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	124,078,942	118,731,427
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	121,581,712	116,292,850
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	119,084,482	113,854,273
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	408,373,527	111,415,695
Guaranteed and Unsecured Obligations [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non-current, Maturity	$ 1,573,877,240	1,837,097,932
Guaranteed and Unsecured Obligations [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	$ 71,001,478	64,694,888
Non-current, Maturity	$ 1,963,664,145	1,871,089,791
Guaranteed and Unsecured Obligations [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Nominal Interest Rate	5.48%
Current, Maturity	$ 55,574,693	56,475,118
Non-current, Maturity	383,331,758	426,302,386
Guaranteed and Unsecured Obligations [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	17,750,370	16,173,722
Guaranteed and Unsecured Obligations [Member] | Chile [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member] | Unidades de Fomento [Member]
Disclosure Of Financial Liabilities [Line Items]
Current, Maturity	6,136,022	6,603,562
Guaranteed and Unsecured Obligations [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	53,251,108	48,521,166
Guaranteed and Unsecured Obligations [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, Maturity	49,438,671	49,871,556
Guaranteed and Unsecured Obligations [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	71,001,479	64,694,887
Guaranteed and Unsecured Obligations [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, Maturity	53,077,463	54,036,540
Guaranteed and Unsecured Obligations [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	71,001,479	64,694,887
Guaranteed and Unsecured Obligations [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, Maturity	50,580,233	51,597,963
Guaranteed and Unsecured Obligations [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	71,001,479	64,694,887
Guaranteed and Unsecured Obligations [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, Maturity	48,083,003	49,159,386
Guaranteed and Unsecured Obligations [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	362,787,755	64,694,887
Guaranteed and Unsecured Obligations [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, Maturity	45,585,772	46,720,808
Guaranteed and Unsecured Obligations [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	1,387,871,953	1,612,310,243
Guaranteed and Unsecured Obligations [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, Maturity	$ 186,005,287	$ 224,787,689

Other Financial Liabilities _11

Other Financial Liabilities - Summary of Estimates of Undiscounted Flows of Finance Leases (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	$ 5,842,015	$ 2,166,275
Non current finance lease obligations	47,565,674	12,310,175
One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	4,515,822	2,307,082
Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	4,565,526	2,457,043
Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	7,061,634	2,616,750
Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	1,783,940	$ 4,929,300
More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	$ 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	$ 7,121,593	$ 3,038,932
Non current finance lease obligations	60,791,882	14,136,785
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | One to Three Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	1,762,246	760,090
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Three Months to Twelve Months [Member]
Disclosure Of Financial Liabilities [Line Items]
Current finance lease liabilities	5,359,347	2,278,842
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | One to Two Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	6,982,602	3,034,977
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Two to Three Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	6,581,108	3,030,765
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Three to Four Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	8,682,207	3,026,279
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | Four to Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	3,143,338	5,044,764
Finance Leases [Member] | Future Undiscounted Debt Flow [Member] | More Than Five Years [Member]
Disclosure Of Financial Liabilities [Line Items]
Non current finance lease obligations	$ 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	$ 3,661,490	3,038,932
Non current finance lease obligations	$ 15,178,552	14,136,785
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	$ 321,343
Non current finance lease obligations	$ 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	2.68%
Current finance lease liabilities	$ 3,114,467
Non current finance lease obligations	$ 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	6.24%
Current finance lease liabilities	$ 24,293
Non current finance lease obligations	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	859,011	760,090
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	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	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	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	2,802,479	2,278,842
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	2,293,383
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	3,570,048	3,034,977
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	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	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	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	3,554,711	3,030,765
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	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	2,523,717
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	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	5,731,772	3,026,279
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	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	2,462,599
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	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	258,317	$ 5,044,764
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	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	2,412,029
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	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	2,453,454
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	$ 30,885,469

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, 2019	Dec. 31, 2018
Fixed interest rate [member]
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items]
Interest rate risk	98.00%	71.00%

Risk Management Policy - Additi

Risk Management Policy - Additional Information (Detail) BTU in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019CLP ($)kWhBTUbbl	Dec. 31, 2018CLP ($)BTUktbbl	Dec. 31, 2017CLP ($)	Dec. 31, 2016CLP ($)
Disclosure Of Financial Risk Management [Line Items]
Cash and cash equivalent	$ 235,684,500	$ 245,171,924	$ 419,456,026	$ 245,999,192
VaR at confidence level, percentage	95.00%
Percentage of potential variations in fair value	5.00%
VaR amount	$ 237,095,044
Commodity Price Risk [Member] | Swap Hedges [Member] | Coal API2 [Member]
Disclosure Of Financial Risk Management [Line Items]
Quantity of transaction to be settle	1,412	432
Commodity Price Risk [Member] | Swap Hedges [Member] | Brent Oil [Member]
Disclosure Of Financial Risk Management [Line Items]
Quantity of transaction to be settle | bbl	1,059	994
Commodity Price Risk [Member] | Swap Hedges [Member] | Coal BCI7 [Member]
Disclosure Of Financial Risk Management [Line Items]
Quantity of transaction to be settle | kt		225
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	4,790	200
Liquidity Risk [Member]
Disclosure Of Financial Risk Management [Line Items]
Cash and cash equivalent	$ 235,684,500	$ 245,171,924
Liquidity Risk [Member] | Lines of Credit [Member]
Disclosure Of Financial Risk Management [Line Items]
Available lines of long-term credit	$ 146,268,500	$ 416,862,000

Financial Instruments - Summary

Financial Instruments - Summary of Financial Assets Classified by Type and Category (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Financial Assets [Line Items]
Hedging derivatives, current	$ 322,316	$ 39,022,012
Trade and other current receivables	511,455,330	478,170,067
Derivative instruments	322,316	39,022,012
Other financial assets	1,310,595	40,303,173
Trade accounts receivable and other accounts receivable	3,734,116	2,829,368
Hedging derivatives, non-current	4,871,397	4,191,543
Derivative instruments	4,871,397	4,191,543
Other financial assets	7,220,620	7,269,669
Financial assets at fair value through profit or loss, category [member]
Disclosure Of Financial Assets [Line Items]
Equity instruments		90,839
Derivative instruments	1,618,318	1,491,497
Total Current	1,618,318	1,582,336
Derivative instruments		36,086
Total Non-current		36,086
Total	1,618,318	1,618,422
Financial assets measured at amortised cost [member]
Disclosure Of Financial Assets [Line Items]
Trade and other current receivables	576,740,203	529,467,040
Other financial assets	860,425	880,268
Total Current	577,600,628	530,347,308
Trade accounts receivable and other accounts receivable	347,981,527	60,527,843
Other financial assets	2	689,146
Total Non-current	347,981,529	61,216,989
Total	925,582,157	591,564,297
Financial assets at fair value with changes in other Comprehensive Income [Member]
Disclosure Of Financial Assets [Line Items]
Equity instruments	127,854	269,031
Derivative instruments	1,323,556	1,423,613
Total Current	1,451,410	1,692,644
Equity instruments	2,349,221	2,352,894
Total Non-current	2,349,221	2,352,894
Total	3,800,631	4,045,538
Derivatives Designated as Hedges [Member]
Disclosure Of Financial Assets [Line Items]
Derivative instruments	277,702	39,022,012
Total Current	277,702	39,022,012
Derivative instruments	4,871,397	4,191,543
Total Non-current	4,871,397	4,191,543
Total	$ 5,149,099	$ 43,213,555

Financial Instruments - Summa_2

Financial Instruments - Summary of Financial Liabilities Classified by Type and Category (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Financial Liabilities [Line Items]
Commercial accounts and other accounts payable	$ 599,263,208	$ 554,286,324
Derivative instruments	48,225,766	81,195,765
Other financial liabilities	214,656,576	410,665,815
Commercial accounts and other accounts payable	56,250,085	2,584,180
Derivative instruments	25,208,326	2,629,715
Other financial liabilities	1,740,169,919	1,705,833,503
Total	0	0	$ 0
Financial Liabilities Held for Trading [Member]
Disclosure Of Financial Liabilities [Line Items]
Derivative instruments	2,026,476	756,005
Total Current	2,026,476	756,005
Derivative instruments	124,048	159,630
Total Non-current	124,048	159,630
Total	2,150,524	915,635
Loans and Payables [Member]
Disclosure Of Financial Liabilities [Line Items]
Interest-bearing loans	164,404,334	329,262,093
Commercial accounts and other accounts payable	750,103,757	702,770,048
Total Current	914,508,091	1,032,032,141
Interest-bearing loans	1,714,837,545	1,703,044,158
Commercial accounts and other accounts payable	840,623,569	449,777,982
Total Non-current	2,555,461,114	2,152,822,140
Total	3,469,969,205	3,184,854,281
Financial liabilities at fair value with changes in other result [Member]
Disclosure Of Financial Liabilities [Line Items]
Derivative instruments	8,924,831	7,161,949
Total Current	8,924,831
Total	8,924,831
Derivatives Designated as Hedges [Member]
Disclosure Of Financial Liabilities [Line Items]
Derivative instruments	48,225,766	81,195,765
Total Current	48,225,766	81,195,765
Derivative instruments	25,208,326	2,629,715
Total Non-current	25,208,326	2,629,715
Total	$ 73,434,092	$ 83,825,480

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, 2019	Dec. 31, 2018
Disclosure of detailed information about hedging instruments [line items]
Assets Current	$ 322,316	$ 39,022,012
Assets Non-Current	4,871,397	4,191,543
Liabilities Current	48,225,766	81,195,765
Liabilities Non-current	25,208,326	2,629,715
Interest rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current	322,316	852,119
Assets Non-Current	8,447	4,191,543
Liabilities Non-current	7,743,401
Interest rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current	322,316	852,119
Assets Non-Current	8,447	4,191,543
Liabilities Non-current	7,743,401
Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current		38,169,893
Assets Non-Current	4,862,950
Liabilities Current	48,225,766	81,195,765
Liabilities Non-current	17,464,925	2,629,715
Exchange rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current		38,169,893
Assets Non-Current	4,862,950
Liabilities Current	48,225,766	81,195,765
Liabilities Non-current	$ 17,464,925	$ 2,629,715

Financial Instruments - Summa_4

Financial Instruments - Summary of Hedge Derivative Instruments and Their Corresponding Hedged Instruments (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Others [Member] | Interest rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	$ (699,158)
Unsecured obligations (bonds) [Member] | Exchange rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	(9,530,240)	$ (18,892,400)
Loans with Related Companies [Member] | Interest rate hedge [Member] | SWAP
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	(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	277,703	5,043,662
Operational Income [Member] | Exchange rate hedge [Member] | FORWARD
Disclosure of detailed information about hedging instruments [line items]
Fair value of hedged item	$ (51,297,500)	$ (26,763,187)

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OTHER FINANCIAL LIABILITIES
Gains or losses recognized	$ 0	$ 0	$ 0
Financial liabilities	$ 0	$ 0	$ 0

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, 2019	Dec. 31, 2018
Disclosure of detailed information about hedging instruments [line items]
Assets Current	$ 322,316	$ 39,022,012
Liabilities Current	48,225,766	81,195,765
Assets Non-Current	4,871,397	4,191,543
Liabilities Non-current	25,208,326	2,629,715
Hedging instruments [member]
Disclosure of detailed information about hedging instruments [line items]
Assets Current		41,023
Liabilities Current	2,026,476	207,957
Assets Non-Current		36,086
Liabilities Non-current	$ 124,048	$ 159,630

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, 2019	Dec. 31, 2018
Disclosure of detailed information about hedging instruments [line items]
Fair value	$ (70,390,903)	$ (40,902,403)
Notional Amount	1,606,944,390	1,647,716,352
Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(2,150,524)	(290,478)
Notional Amount	33,807,926	65,896,058
Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	634,856,156	1,331,559,116
Less Than One Year [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	31,746,086	34,525,045
One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	154,954,548	210,028,516
One to Two Years [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	2,061,840	29,457,793
Two to Three Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	299,496,000	106,128,720
Two to Three Years [Member] | Derivatives not designated for hedge accounting [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount		1,913,220
Four to Five Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	517,637,686
Exchange rate hedge [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(60,827,741)	(45,655,587)
Notional Amount	1,049,018,464	1,303,912,294
Exchange rate hedge [Member] | Less Than One Year [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	490,799,070	1,227,557,071
Exchange rate hedge [Member] | One to Two Years [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	40,581,708	76,355,223
Exchange rate hedge [Member] | Four to Five Years [Member] | Exchange rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	517,637,686
Exchange rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(60,827,741)	(45,655,587)
Notional Amount	1,049,018,464	1,303,912,294
Exchange rate hedge [Member] | Cash flow hedge [Member] | Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	490,799,070	1,227,557,071
Exchange rate hedge [Member] | Cash flow hedge [Member] | One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	40,581,708	76,355,223
Exchange rate hedge [Member] | Cash flow hedge [Member] | Four to Five Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	517,637,686
Interest rate hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(7,412,638)	5,043,662
Notional Amount	524,118,000	277,908,000
Interest rate hedge [Member] | Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	112,311,000	69,477,000
Interest rate hedge [Member] | One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	112,311,000	104,215,500
Interest rate hedge [Member] | Two to Three Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	299,496,000	104,215,500
Interest rate hedge [Member] | Cash flow hedge [Member]
Disclosure of detailed information about hedging instruments [line items]
Fair value	(7,412,638)	5,043,662
Notional Amount	524,118,000	277,908,000
Interest rate hedge [Member] | Cash flow hedge [Member] | Less Than One Year [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	112,311,000	69,477,000
Interest rate hedge [Member] | Cash flow hedge [Member] | One to Two Years [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional Amount	112,311,000	104,215,500
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	$ 104,215,500

Financial instruments- Schedule

Financial instruments- Schedule of Financial Assets and Liabilities Measured at Fair Value (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	$ 0	$ 0	$ 0
At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	10,568,050	46,524,621
Financial liabilities	84,509,447	91,903,064
Available For Sale Financial Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	2,477,077	359,870
Derivatives Designated as Hedges [Member] | Financial Derivatives Asset | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	5,193,713	43,213,555
Derivatives Designated as Hedges [Member] | Commodity Derivatives Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,323,556	1,423,613
Derivatives Designated as Hedges [Member] | Financial Derivatives Liability | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	73,434,092	83,825,480
Derivatives Designated as Hedges [Member] | Commodity Derivatives Liabilities | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	8,924,831	7,161,949
Derivatives not designated for hedge accounting [Member] | Financial Derivatives Asset | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets		77,109
Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,573,704	1,450,474
Derivatives not designated for hedge accounting [Member] | Financial Derivatives Liability | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	2,150,524	367,587
Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Liabilities | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities		548,048
Level 1 [Member] | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	2,349,223
Level 1 [Member] | Available For Sale Financial Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	2,349,223
Level 2 [Member] | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	8,218,827	46,524,621
Financial liabilities	84,509,447	91,903,064
Level 2 [Member] | Available For Sale Financial Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	127,854	359,870
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Financial Derivatives Asset | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	5,193,713	43,213,555
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Commodity Derivatives Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,323,556	1,423,613
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Financial Derivatives Liability | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	73,434,092	83,825,480
Level 2 [Member] | Derivatives Designated as Hedges [Member] | Commodity Derivatives Liabilities | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	8,924,831	7,161,949
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Financial Derivatives Asset | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets		77,109
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Assets | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial assets	1,573,704	1,450,474
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Financial Derivatives Liability | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities	$ 2,150,524	367,587
Level 2 [Member] | Derivatives not designated for hedge accounting [Member] | Commodity Derivatives Liabilities | At fair value [member]
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]
Financial liabilities		$ 548,048

Trade and Other Current Payab_3

Trade and Other Current Payables - Summary of Trade and Other Current Payables (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Trade And Other Payables [Line Items]
Trade and other current payables	$ 599,263,208	$ 554,286,324
Trade and other non-current payables	56,250,085	2,584,180
Energy suppliers [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	178,153,813	155,123,059
Trade and other non-current payables	53,941,373
Fuel and gas suppliers [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	55,179,023	39,787,839
Payables for goods and services [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	183,848,556	155,054,466
Trade and other non-current payables	487	6,766
Payable For Assets Acquisition [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	100,307,602	116,157,897
Trade and other non-current payables	2,281,051	2,106,099
Subtotal Trade Payables [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	517,488,994	466,123,261
Trade and other non-current payables	56,222,911	2,112,865
Dividends payable to third parties [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	41,582,444	52,059,048
Warranty deposits [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	360,863	365,857
Fines and Complaints [Member]
Trade And Other Payables [Line Items]
Trade and other current payables		165,102
Taxes payables other than income tax [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	44,506	1,742,603
Accounts payable to staff [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	33,090,217	30,686,679
Other payables [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	6,696,184	3,143,774
Trade and other non-current payables	27,174	471,315
Subtotal Other Payables [Member]
Trade And Other Payables [Line Items]
Trade and other current payables	81,774,214	88,163,063
Trade and other non-current payables	$ 27,174	$ 471,315

Provisions - Summary of Breakdo

Provisions - Summary of Breakdown of Provisions (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
PROVISIONS
Provision for legal proceedings, current	$ 2,320,885	$ 3,884,018
Other provisions, current	1,745,080	1,704,768
Other current provisions, Total	4,065,965	5,588,786
Provision for legal proceedings, non-current	11,210,305	13,468,858
Decommissioning or restoration, non-current	160,649,977	92,402,517
Other long-term provisions, Total	$ 171,860,282	$ 105,871,375

Provisions - Summary of Changes

Provisions - Summary of Changes in Provisions (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Other Provisions [Line Items]
Beginning balance	$ 111,460,161	$ 84,059,008
Increase (decrease) in existing provisions	66,478,287	24,983,613
Provisions used	(3,977,591)	(1,651,620)
Reversal of unused provision	(3,612,445)	(743,927)
Increase from adjustment to time value of money	4,356,650	3,176,001
Foreign currency translation	1,221,185	1,637,086
Total changes in provisions	64,466,086	27,401,153
Ending balance	175,926,247	111,460,161
Legal Proceedings [Member]
Disclosure Of Other Provisions [Line Items]
Beginning balance	17,352,876	17,433,976
Increase (decrease) in existing provisions	3,749,833	1,842,257
Provisions used	(3,946,144)	(1,150,386)
Reversal of unused provision	(3,612,445)	(743,927)
Foreign currency translation	(12,930)	(29,044)
Total changes in provisions	(3,821,686)	(81,100)
Ending balance	13,531,190	17,352,876
Decommissioning or Restoration [Member]
Disclosure Of Other Provisions [Line Items]
Beginning balance	92,402,517	64,486,647
Increase (decrease) in existing provisions	62,688,286	23,395,295
Provisions used	(31,436)
Increase from adjustment to time value of money	4,356,650	3,176,001
Foreign currency translation	1,233,960	1,344,574
Total changes in provisions	68,247,460	27,915,870
Ending balance	160,649,977	92,402,517
Environment and Other Provisions [Member]
Disclosure Of Other Provisions [Line Items]
Beginning balance	1,704,768	2,138,385
Increase (decrease) in existing provisions	40,168	(253,939)
Provisions used	(11)	(501,234)
Foreign currency translation	155	321,556
Total changes in provisions	40,312	(433,617)
Ending balance	$ 1,745,080	$ 1,704,768

Employee Benefit Obligations -

Employee Benefit Obligations - Summary of Post Employment Obligations Associated with Defined Benefits Plan (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Post Employment Obligations [Line Items]
Total post-employment obligations, net	$ 66,163,490	$ 56,602,664
Compensation for years of services
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	42,697,317	33,839,498
Supplementary Pension
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	17,853,600	16,993,409
Health Plans
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	3,090,670	2,979,630
Energy Supply Plans
Disclosure Of Post Employment Obligations [Line Items]
Post-employment obligations	$ 2,521,903	$ 2,790,127

Employee Benefit Obligations _2

Employee Benefit Obligations - Summary of Defined Benefit Plans Expense Recognized in Statements of Comprehensive Income (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Net Defined Benefit Recognized In Consolidated Statement Of Comprehensive Income [Abstract]
Current service cost for defined benefits plan	$ 1,928,868	$ 1,920,262	$ 2,091,205
Interest cost for defined benefits plan	2,639,738	2,750,376	2,678,300
Past service cost	1,224,527	(39,060)
Expenses recognized in the Statement of Income	5,793,133	4,631,578	4,769,505
Gains (losses) from remeasurement of defined benefit plans	7,777,204	(37,881)	(1,716,875)
Total expense recognized in the Statement of Comprehensive Income	$ 13,570,337	$ 4,593,697	$ 3,052,630

Employee Benefit Obligations _3

Employee Benefit Obligations - Summary of Changes in Post-employment Defined Benefit Obligations (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Net Defined Benefit Liability Asset [Abstract]
Beginning balance	$ 56,602,664	$ 57,081,924
Current service cost	1,928,868	1,920,262
Net Interest cost	2,639,738	2,750,376
Actuarial (gains) losses from changes in financial assumptions	5,724,985	789,809
Actuarial (gains) losses from changes in experience adjustments	2,052,219	(827,690)
Foreign currency translation	9,786	124,929
Benefits paid	(4,068,988)	(5,469,357)
Past service cost of Defined Benefit Plan Obligations	1,224,527	(39,060)
Defined benefit plan obligations from business combinations		602,816
Transfers of employees	49,691	(331,345)
Ending balance	$ 66,163,490	$ 56,602,664

Employee Benefit Obligations _4

Employee Benefit Obligations - Summary of Assumptions Used in Actuarial Calculation of Defined Benefits (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Abstract]
Discount rates used	3.40%	4.70%
Expected rate of salary increases	3.80%	3.80%
Turnover rate	5.24%	4.40%
Mortality tables	CB-H-2014 / RV-M-2014	CB-H-2014 / RV-M-2014

Employee Benefit Obligations _5

Employee Benefit Obligations - Additional Information (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Defined Benefit Plans [Line Items]
Post-employment benefits to variations	100.00%
Discount rate assumes a increase	$ 5,829,095	$ 4,773,734
Discount rate assumes a decrease	5,330,365	$ 4,296,927
Defined benefit plans will increase	$ 6,004,886
Weighted average term	8 years 8 months 19 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

Employee Benefit Obligations _6

Employee Benefit Obligations - Summary of Expected Flow for Benefits for Next Five Years (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019CLP ($)
Less Than One Year [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	$ 6,004,886
One to Two Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	5,304,228
Two to Three Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	5,264,382
Three to Four Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	4,304,571
Four to Five Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	5,181,657
More Than Five Years [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Estimate of contributions expected to be paid to plan	$ 23,620,901

Equity - Additional Information

Equity - Additional Information (Detail) - CLP ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 20, 2017
Disclosure Of Shareholders Equity [Line Items]
Issued capital	$ 3,954,491,479,000	$ 3,882,103,470,000	$ 1,891,727,278,668
Treasury shares	72,388,009,000
Issuance of new shares	665,829,207,000
Valuation of capital increase due to the merger	1,071,727,279
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 S.A [Member]
Disclosure Of Shareholders Equity [Line Items]
Issued capital	$ 3,954,491,479	$ 3,882,103,470
Number of shares outstanding	70,134,077,818	69,166,557,220
Treasury shares		$ 72,388,009,000
Treasury shares held		967,520,598

Equity - Changes in Capital Iss

Equity - Changes in Capital Issued as result of Corporate Reorganization (Detail)	12 Months Ended
	Dec. 31, 2019CLP ($)$ / sharesshares	Dec. 31, 2018CLP ($)shares	Apr. 02, 2018CLP ($)	Mar. 31, 2018shares	Mar. 16, 2018CLP ($)$ / sharesshares	Dec. 20, 2017CLP ($)
Tender Offer
Number of subscribed share	7,923,600,070
Amount paid by shareholder for subscribed shares | $	$ 649,730,695,412
Number of shares exercised under preemptive subscription rights					47,860,124
Share exercised price under preemptive subscription rights | $ / shares					$ 82
Capital increased after pre-emptive subscription rights exercised | $					$ 3,924,530,168,000
Issued capital | $	$ 3,882,103,470,000	$ 3,954,491,479,000				$ 1,891,727,278,668
Share exchange ratio | $		2.88
Issuance of new shares | $		$ 665,829,207,000
Total repurchase of shares | $		(72,388,009,000)
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
Amount of cash received by domestic shareholders | $	1,523,578,409,330
Amount of cash received by shareholders | $	1,624,326,738,530
Restricted net asset value | $	$ 752,696,419,000	$ 712,519,037,000
Enel Green Power Latin America S.A. [Member]
Tender Offer
Increase in capital stock after merger | $			$ 1,071,727,278,668
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		491,455,473
Total public offer shares		7,923,600,071
Rights exercised for withdrawal by minority shareholders of Enel Chile		(967,520,598)
Number of shares issued		70,134,077,818
Total repurchase of shares | $		$ (967,520,598)
After Reorganization [Member] | Enel Green Power Latin America S.A. [Member]
Tender Offer
Number of shares issued		13,069,844,861
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		13,069,844,861
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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Dividends [Line Items]
Total Amount	$ 213,937,411	$ 215,461,852	$ 263,271,862
Final Dividends [Member]
Disclosure Of Dividends [Line Items]
Type of Dividend		Final	Final
Payment Date		Apr. 29, 2019	Apr. 25, 2018
Total Amount		$ 185,737,592	$ 155,025,509
Pesos per Share		$ 2.68537	$ 2.24134
Charged to		2018	2017
Final Dividends [Member] | 2019
Disclosure Of Dividends [Line Items]
Type of Dividend	Final
Payment Date	Nov. 26, 2019
Total Amount	$ 30,933,437
Pesos per Share	$ 0.44723
Charged to	2019
Interim Dividends [Member]
Disclosure Of Dividends [Line Items]
Type of Dividend		Interim	Interim
Payment Date		Nov. 29, 2018	Dec. 20, 2017
Total Amount		$ 31,288,371	$ 37,134,944
Pesos per Share		$ 0.45236	$ 0.75642
Charged to		2018	2017

Equity - Summary of Foreign Cur

Equity - Summary of Foreign Currency Translation Adjustments (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	$ 3,747,283,652	$ 3,674,163,781	$ 3,786,961,657	$ 3,462,993,642
Reserve for Exchange Differences in Translation
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	166,116,569	101,654,836	6,976,383	$ 9,222,933
Reserve for Exchange Differences in Translation | GasAtacama Chile S.A. [Member]
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	(3,292,629)	302,222	6,416,189
Reserve for Exchange Differences in Translation | GNL Chile S.A. [Member]
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	1,022,047	900,483	$ 560,194
Reserve for Exchange Differences in Translation | Enel Green Power Chile Group
Disclosure Of Foreign Currency Translation Reserves [Line Items]
TOTAL	$ 168,387,151	$ 100,452,131

Equity - Summary of Other Reser

Equity - Summary of Other Reserves Within Equity (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	$ (2,375,672,564)	$ (997,330,548)	$ (1,035,092,978)
Other reserves, Changes	(29,836,571)	(1,378,342,016)	37,762,430
Other reserves, Ending balance	(2,405,509,135)	(2,375,672,564)	(997,330,548)
Reserve for Exchange Differences in Translation
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	101,654,836	6,976,383	9,222,933
Other reserves, Changes	64,461,733	94,678,453	(2,246,550)
Other reserves, Ending balance	166,116,569	101,654,836	6,976,383
Reserve for Cash Flow Hedges
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	(191,870,545)	(32,849,736)	(76,218,470)
Other reserves, Changes	(99,135,975)	(159,020,809)	43,368,734
Other reserves, Ending balance	(291,006,520)	(191,870,545)	(32,849,736)
Available-for-sale Financial Assets [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance		11,284	9,955
Other reserves, Changes			1,329
Other reserves, Ending balance			11,284
Financial assets at fair value with changes in other Comprehensive Income [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	11,041	11,284
Other reserves, Changes	(2,657)	(243)
Other reserves, Ending balance	8,384	11,041	11,284
Other Comprehensive Income from Non-current Assets Held for Sale [Member]
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance			1,632,724
Other reserves, Changes			(1,632,724)
Other Miscellaneous Reserves
Disclosure Of Other Reserves [Line Items]
Other reserves, Beginning balance	(2,285,467,896)	(971,468,479)	(969,740,120)
Other reserves, Changes	4,840,328	(1,313,999,417)	(1,728,359)
Other reserves, Ending balance	$ (2,280,627,568)	$ (2,285,467,896)	$ (971,468,479)

Equity - Summary of Other Misce

Equity - Summary of Other Miscellaneous Reserves Within Equity (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	$ (2,280,627,568)	$ (2,285,467,896)	$ (971,468,479)
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)
Reserves" Reorganization of Renewable Assets" [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	(407,354,462)	(407,354,462)
Hyperinflation Argentina [Member]
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	8,939,332	3,508,753
Other Miscellaneous Reserves
Disclosure Of Other Reserves [Line Items]
Other miscellaneous reserves	$ 7,001,861	$ 7,592,112	$ 7,308,596

Equity - Summary of Non-control

Equity - Summary of Non-controlling Interests (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Non-controlling Interests, Equity	$ 262,585,666	$ 252,935,262	$ 803,577,647
Non-controlling Interests, Profit (Loss)	$ 19,939,613	51,137,820	174,035,269
Enel Distribucion Chile S.A. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	0.91%
Non-controlling Interests, Equity	$ 7,691,319	6,965,769	6,223,363
Non-controlling Interests, Profit (Loss)	$ 1,079,941	1,112,709	961,490
Enel Generación Chile S.A. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	6.45%
Non-controlling Interests, Equity	$ 126,700,973	127,136,175	784,999,394
Non-controlling Interests, Profit (Loss)	$ 12,667,880	42,883,953	167,465,216
Empresa Electrica Pehuenche S.A. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	7.35%
Non-controlling Interests, Equity	$ 10,079,858	10,310,215	9,963,472
Non-controlling Interests, Profit (Loss)	$ 6,241,062	6,885,422	5,649,253
Sociedad Agricola de Cameros Ltda. [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	42.50%
Non-controlling Interests, Equity	$ 1,837,612	2,342,160	2,596,764
Non-controlling Interests, Profit (Loss)	$ (504,550)	(254,604)	(39,706)
Geotermica del Norte SA [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Percentage of non-controlling interests	15.41%
Non-controlling Interests, Equity	$ 57,871,809	53,693,407
Non-controlling Interests, Profit (Loss)	$ (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	49.00%
Non-controlling Interests, Equity	$ 995,614	993,295
Non-controlling Interests, Profit (Loss)	$ (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	39.09%
Non-controlling Interests, Equity	$ 57,586,860	51,702,606
Non-controlling Interests, Profit (Loss)	868,127	662,374
Others [Member]
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [Line Items]
Non-controlling Interests, Equity	(178,379)	(208,365)	(205,346)
Non-controlling Interests, Profit (Loss)	$ (73,726)	$ (5,825)	$ (984)

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Revenue And Other Operating Income [Line Items]
Total Revenues	$ 2,624,576,323	$ 2,410,360,459	$ 2,484,101,582
Commodity derivatives	5,967,739	9,819,777	20,328,649
Income from early termination of electricity supply contracts	121,117,605
Other income	19,172,693	36,981,190	18,548,051
Total other income	146,258,037	46,800,967	38,876,700
Energy Sales [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	2,405,903,242	2,202,078,088	2,262,090,558
Generation
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	1,090,021,527	1,034,975,160	1,082,749,256
Generation | Regulated Customers [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	589,368,952	643,494,066	726,166,640
Generation | Non-regulated Customers [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	475,208,116	357,725,928	285,623,737
Generation | Spot Market Sales [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	25,444,459	33,755,166	70,958,879
Distributions [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	1,315,881,715	1,167,102,928	1,179,341,302
Distributions [Member] | Others [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	132,052,695	123,916,550	131,227,735
Distributions [Member] | Residential [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	552,124,205	455,840,910	435,769,231
Distributions [Member] | Business [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	450,108,855	378,092,990	386,608,105
Distributions [Member] | Industrial [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from sale of electricity	181,595,960	209,252,478	225,736,231
Other Sales [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue	124,113,792	123,345,383	107,362,797
Revenue from sale of natural gas	97,564,262	103,717,558	91,652,707
Other Sales [Member] | Sales of Products and Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	26,549,530	19,627,825	15,710,090
Revenue from Other Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	94,559,289	84,936,988	114,648,227
Revenue from Other Services [Member] | Tolls and Transmission [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	31,232,252	20,311,403	39,812,005
Revenue from Other Services [Member] | Metering Equipment Leases [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	2,131,427	5,024,944	4,945,609
Revenue from Other Services [Member] | Public Lighting [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	11,262,418	12,181,969	13,449,852
Revenue from Other Services [Member] | Engineering and Consulting Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	10,385,950	10,027,472	3,414,472
Revenue from Other Services [Member] | Services for construction of junctions [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	16,497,051	14,711,796	15,514,433
Revenue from Other Services [Member] | Works in specific facilities and networks [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	7,455,200	8,425,251	13,932,537
Revenue from Other Services [Member] | Income from work in progress [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	2,727,203	1,947,722	2,883,530
Revenue from Other Services [Member] | Other Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue from rendering of services	$ 12,867,788	$ 12,306,431	$ 20,695,789

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenue form differential in price	$ 142,367,584
Amount of revenue transfer to final customers through its subsidiary	87,906,446
Foregoing revenue recognized	121,117,605
Revenues from Central Tarapacá indemnization	4,380,934	$ 21,987,899	$ 0
Revenue recovered from customers with unrecorded consumption	2,746,764	2,847,740	1,968,203
Revenues from late payment of invoice amount	485,684	675,202	1,299,470
Revenues from other operating income services	7,724,113	11,470,349	15,280,378
Others [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	3,589,156	1,881,702	3,215,295
Facilities leases	3,835,198	0	0
Municipalities [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	45,768,456	36,878,861	36,165,698
Government Entities [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	20,432,048	20,246,633	20,080,121
Agricultural Sector Entities [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	9,100,691	6,173,077	5,811,319
Public Services Companies and Telecommunications [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	24,818,503	26,636,066	33,649,705
Educational Area [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	9,367,933	12,470,709	14,015,433
Health Services [Member]
Disclosure Of Revenue And Other Operating Income [Line Items]
Revenues from energy sales	$ 18,975,909	$ 19,629,502	$ 18,290,164

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Raw Materials And Consumables Used [Line Items]
Energy purchases	$ (835,284,742)	$ (747,646,603)	$ (902,434,871)
Fuel consumption	(230,944,415)	(231,028,169)	(280,739,362)
Transportation costs	(196,848,788)	(166,875,801)	(155,879,249)
Sale costs	(74,998,608)	(80,477,713)	(75,662,185)
Other raw materials and consumables	(83,128,698)	(66,148,830)	(100,071,254)
Total	(1,421,205,251)	(1,292,177,116)	(1,514,786,921)
Gas [Member]
Disclosure Of Raw Materials And Consumables Used [Line Items]
Fuel consumption	(134,127,365)	(140,145,010)	(170,456,730)
Oil [Member]
Disclosure Of Raw Materials And Consumables Used [Line Items]
Fuel consumption	(3,326,061)	(11,146,001)	(21,227,747)
Coal [Member]
Disclosure Of Raw Materials And Consumables Used [Line Items]
Fuel consumption	$ (93,490,989)	$ (79,737,158)	$ (89,054,885)

Employee Benefits Expense - Sum

Employee Benefits Expense - Summary of Employee Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
EMPLOYEE BENEFITS EXPENSE.
Wages and salaries	$ (109,101,737)	$ (102,897,710)	$ (100,653,880)
Post-employment benefit obligations expense	(3,153,395)	(1,881,202)	(2,091,205)
Social security and other contributions	(14,334,587)	(13,405,944)	(13,150,402)
Other employee expenses	(3,015,237)	(4,945,478)	(5,608,290)
Total	$ (129,604,956)	$ (123,130,334)	$ (121,503,777)

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, 2019	Dec. 31, 2018	Dec. 31, 2017
DEPRECIATION, AMORTIZATION AND IMPAIRMENT LOSSES.
Depreciation	$ (224,724,380)	$ (202,971,892)	$ (145,873,065)
Amortization	(11,903,007)	(12,215,408)	(6,811,041)
Total	$ (236,627,387)	$ (215,187,300)	$ (152,684,106)

Depreciation, Amortization an_4

Depreciation, Amortization and Impairment Losses - Summary of Depreciation, Amortization and Impairment losses - Additional Information (Detail) - CLP ($) $ in Thousands	Aug. 31, 2016	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2014
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment loss on property plant and equipment		$ 280,020,263
Impairment loss on investment property		742,389	$ 779,825
Total Reversal of impairment losses (impairment losses) recognized in profit or loss		280,762,652	779,825
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9		(10,047,000)	(4,783,072)	$ (7,937,817)
Impairment losses of other assets	$ (32,834,160)				$ (12,581,947)
Total		(10,047,000)	(4,783,072)	(7,937,817)
Generation
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment loss on property plant and equipment		280,020,263
Total Reversal of impairment losses (impairment losses) recognized in profit or loss		280,020,263
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9		(1,338,599)	(106,264)	55,494
Distribution
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9		(8,153,419)	(4,676,808)	$ (7,993,311)
Other
Disclosure Of Depreciation Amortization And Impairment Losses [Line Items]
Impairment loss on investment property		742,389	779,825
Total Reversal of impairment losses (impairment losses) recognized in profit or loss		742,389	$ 779,825
Impairment gains and reversals of impairment losses (Impairment losses) determined in accordance with IFRS 9		$ (554,982)

Other Expenses - Summary of Oth

Other Expenses - Summary of Other Miscellaneous Operating Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OTHER EXPENSES
Professional, outsourced and other services	$ (60,808,462)	$ (69,692,677)	$ (74,722,143)
Administrative expenses	(8,893,785)	(5,991,676)	(2,267,390)
Repairs and maintenance	(50,846,851)	(41,829,409)	(17,906,263)
Indemnities and fines	(1,243,376)	(455,825)	(776,011)
Taxes and charges	(6,802,176)	(4,415,819)	(5,105,235)
Insurance premiums	(19,200,681)	(15,794,761)	(13,277,718)
Leases and rental costs	(3,824,195)	(3,775,007)	(2,013,411)
Marketing, public relations and advertising	(3,274,693)	(2,440,070)	(2,501,027)
Write-off Property, Plant and Equipment	3,510,591		25,105,911
Travel expenses	(3,991,349)	(2,436,407)	(3,426,179)
Environmental expenses	(9,886,690)	(9,664,683)	(7,769,230)
Other supplies and services	(11,860,291)	(10,713,687)	(6,953,556)
Total	$ (184,143,140)	$ (167,210,021)	$ (161,824,074)

Other Gains (Losses) - Summary

Other Gains (Losses) - Summary of Other gains (losses) (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
OTHER GAINS (LOSSES)
Gain on sale of Electrogas			$ 105,311,912
Gain on sale of Property, Plant and Equipment	$ 1,530,689	$ 3,024,549	7,779,531
Gain on sale of investment properties	262,512	385,830	149,753
Other gains (losses)	$ 1,793,201	$ 3,410,379	$ 113,241,196

Financial Results - Summary of

Financial Results - Summary of Financial Income and Costs (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
FINANCIAL RESULTS.
Income from deposits and other financial instruments	$ 8,973,606	$ 9,612,575	$ 8,377,023
Interests charged to customers in energy accounts and billing	8,057,203	7,140,984	8,556,587
Finance income by law	5,225,739
Other financial income	5,142,727	3,180,909	4,729,078
Total Financial Income	27,399,275	19,934,468	21,662,688
Financial Costs	(164,897,900)	(122,184,189)	(53,510,882)
Bank loans	(14,487,700)	(20,701,774)	(12,585)
Secured and unsecured obligations	(81,818,564)	(62,255,300)	(42,708,253)
Financial leasing	(1,815,170)	(739,069)	(811,172)
Valuation of financial derivatives	1,775,749	1,183,228	(1,067,820)
Financial provisions	(4,356,650)	(3,176,001)	(2,347,087)
Post-employment benefit obligations	(2,639,738)	(2,750,376)	(2,678,300)
Debt formalization expenses and other associated expenses	(4,710,012)	(9,373,412)	(836,174)
Capitalized borrowing costs	9,321,354	6,435,646	4,078,463
Financial cost related companies	(31,304,382)	(23,228,947)	(452,642)
Financial cost by Law N°21,185	(19,062,333)
Other financial costs	(15,800,454)	(7,578,184)	(6,675,312)
Profit (losses) from Indexed Assets and Liabilities	(2,982,268)	(818,146)	916,666
Foreign Currency Exchange Differences	(10,412,110)	(7,807,197)	8,516,874
Total Financial Costs	(178,292,278)	(130,809,532)	(44,077,342)
Total Financial Results	$ (150,893,003)	$ (110,875,064)	$ (22,414,654)

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, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	$ (2,982,268)	$ (818,146)	$ 916,666
Foreign Currency Exchange Differences	(10,412,110)	(7,807,197)	8,516,874
Exchange effect on account receivable	5,261,358
Exchange effect on account payables	1,426,334
Cash and cash equivalents [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	36,797
Foreign Currency Exchange Differences	(937,177)	(415,962)	2,931,086
Other financial assets [Member]
Disclosure Of Financial Results [Line Items]
Foreign Currency Exchange Differences	2,052,540	5,733,173	10,895,862
Other non-financial assets [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities		45,108
Foreign Currency Exchange Differences	(1,712,690)	(534,401)
Trade and other receivables [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	1,410,408	1,197,498	155,158
Foreign Currency Exchange Differences	8,847,969	726,347	390,764
Current tax assets and liabilities [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	2,557,465	3,424,644	1,654,538
Foreign Currency Exchange Differences	(1,633,471)	(1,903,963)	(188,270)
Other financial liabilities (financial debt and derivative instruments) [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	(1,637,291)	(1,714,216)	(891,230)
Foreign Currency Exchange Differences	(8,147,939)	(5,726,246)	(4,358,937)
Trade and other payables [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	16,939	15,145	(1,800)
Foreign Currency Exchange Differences	(9,381,721)	(5,379,210)	(1,152,505)
Sub total [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	2,382,630	2,968,179	916,666
Result for hyperinflation [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	(5,364,898)	(3,786,325)
Other non-financial liabilities [Member]
Disclosure Of Financial Results [Line Items]
Profit (losses) from Indexed Assets and Liabilities	(1,688)
Foreign Currency Exchange Differences	$ 500,379	$ (306,935)	$ (1,126)

Information by Segment - Summar

Information by Segment - Summary of Assets and Liabilities by Segment (Detail) - CLP ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 20, 2017	Dec. 31, 2016
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS	$ 1,018,212,660,000	$ 996,947,772,000
Cash and cash equivalents	235,684,500,000	245,171,924,000	$ 419,456,026,000		$ 245,999,192,000
Other current financial assets	1,310,595,000	40,303,173,000
Other current non-financial assets	34,634,563,000	22,406,088,000
Trade and other current receivables	511,455,330,000	478,170,067,000
Current accounts receivable from related parties	68,182,133,000	54,171,060,000
Inventories	39,672,250,000	56,961,643,000
Current tax assets	127,273,289,000	99,763,817,000
TOTAL NON-CURRENT ASSETS	6,839,775,504,000	6,491,072,392,000
Other non-current financial assets	7,220,620,000	7,269,669,000
Other non-current non-financial assets	38,050,184,000	44,608,012,000
Trade and other non-current receivables	313,574,385,000	60,527,843,000
Non-Current accounts payable from related companies	34,407,142,000
Investments accounted for using the equity method	7,928,588,000	12,873,531,000	16,912,454,000
Intangible assets other than goodwill	132,278,593,000	115,372,393,000	55,170,904,000
Goodwill	917,352,974,000	915,044,725,000	887,257,655,000
Property, plant and equipment	5,360,319,624,000	5,308,647,633,000	3,585,687,137,000
Investment property	6,795,155,000	7,557,356,000	8,356,772,000
Deferred tax assets	21,848,239,000	19,171,230,000
TOTAL ASSETS	7,857,988,164,000	7,488,020,164,000
TOTAL CURRENT LIABILITIES	1,041,299,852,000	1,217,464,152,000
Other current financial liabilities	214,656,576,000	410,665,815,000
Trade and other current payables	599,263,208,000	554,286,324,000
Current accounts payable to related parties	159,809,887,000	157,936,325,000
Other current provisions	4,065,965,000	5,588,786,000
Current tax liabilities	17,995,833,000	17,677,920,000
Other current non-financial liabilities	45,508,383,000	71,308,982,000
TOTAL NON-CURRENT LIABILITIES	3,069,404,660,000	2,596,392,231,000
Other non-current financial liabilities	1,740,169,919,000	1,705,833,503,000
Trade and other non-current payables	56,250,085,000	2,584,180,000
Non-current accounts payable to related parties	784,373,484,000	447,193,802,000
Other long-term provisions	171,860,282,000	105,871,375,000
Deferred tax liabilities	249,284,641,000	278,080,054,000
Non-current provisions for employee benefits	66,163,490,000	56,602,664,000
Other non-current non-financial liabilities	1,302,759,000	226,653,000
TOTAL EQUITY	3,747,283,652,000	3,674,163,781,000	3,786,961,657,000		3,462,993,642,000
Equity attributable to Enel Chile	3,484,697,986,000	3,421,228,519,000
Allocated capital	3,882,103,470,000	3,954,491,479,000		$ 1,891,727,278,668
Retained earnings	2,008,103,651,000	1,914,797,613,000
Treasury shares		(72,388,009,000)
Other reserves	(2,405,509,135,000)	(2,375,672,564,000)	(997,330,548,000)		$ (1,035,092,978,000)
Non-controlling interests	262,585,666,000	252,935,262,000	$ 803,577,647,000
TOTAL LIABILITIES AND EQUITY	7,857,988,164,000	7,488,020,164,000
Operating Segments | Generation
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS	941,262,837,000	997,843,912,000
Cash and cash equivalents	26,391,853,000	155,591,949,000
Other current financial assets	489,658,000	39,507,485,000
Other current non-financial assets	8,908,239,000	14,074,044,000
Trade and other current receivables	230,670,997,000	254,374,451,000
Current accounts receivable from related parties	587,067,775,000	422,492,265,000
Inventories	34,705,515,000	48,221,915,000
Current tax assets	53,028,800,000	63,581,803,000
TOTAL NON-CURRENT ASSETS	4,771,905,050,000	4,625,205,545,000
Other non-current financial assets	7,189,431,000	6,554,114,000
Other non-current non-financial assets	34,903,436,000	42,006,844,000
Trade and other non-current receivables	88,225,632,000	1,565,812,000
Non-Current accounts payable from related companies	80,926,788,000
Investments accounted for using the equity method	7,928,588,000	12,873,531,000
Intangible assets other than goodwill	76,077,944,000	68,776,401,000
Goodwill	33,135,272,000	32,500,603,000
Property, plant and equipment	4,422,575,593,000	4,442,872,809,000
Deferred tax assets	20,942,366,000	18,055,431,000
TOTAL ASSETS	5,713,167,887,000	5,623,049,457,000
TOTAL CURRENT LIABILITIES	844,513,549,000	909,428,562,000
Other current financial liabilities	211,928,086,000	196,141,320,000
Trade and other current payables	300,957,548,000	317,337,886,000
Current accounts payable to related parties	296,861,070,000	337,986,306,000
Other current provisions	3,619,734,000	5,195,377,000
Current tax liabilities	17,717,789,000	12,563,801,000
Other current non-financial liabilities	13,429,322,000	40,203,872,000
TOTAL NON-CURRENT LIABILITIES	1,899,077,568,000	1,846,575,202,000
Other non-current financial liabilities	998,974,951,000	1,028,833,254,000
Trade and other non-current payables	2,281,053,000	2,556,521,000
Non-current accounts payable to related parties	486,839,484,000	447,193,802,000
Other long-term provisions	160,006,401,000	91,898,262,000
Deferred tax liabilities	231,156,234,000	260,950,163,000
Non-current provisions for employee benefits	19,819,445,000	15,143,200,000
TOTAL EQUITY	2,969,576,770,000	2,867,045,693,000
Equity attributable to Enel Chile	2,969,576,770,000	2,867,045,693,000
Allocated capital	1,185,731,351,000	1,137,185,366,000
Retained earnings	1,735,720,458,000	1,626,928,911,000
Share Premium	85,511,492,000	85,511,492,000
Other reserves	(37,386,531,000)	17,419,924,000
TOTAL LIABILITIES AND EQUITY	5,713,167,887,000	5,623,049,457,000
Operating Segments | Distribution
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS	289,393,932,000	296,453,471,000
Cash and cash equivalents	2,331,365,000	4,969,412,000
Other current financial assets	64,220,000	62,226,000
Other current non-financial assets	8,868,077,000	5,648,807,000
Trade and other current receivables	260,840,410,000	218,310,327,000
Current accounts receivable from related parties	10,115,510,000	59,827,152,000
Inventories	3,150,943,000	3,528,174,000
Current tax assets	4,023,407,000	4,107,373,000
TOTAL NON-CURRENT ASSETS	1,175,550,962,000	982,926,699,000
Other non-current financial assets	22,741,000	26,410,000
Other non-current non-financial assets	2,576,585,000	2,600,071,000
Trade and other non-current receivables	157,051,933,000	41,993,899,000
Intangible assets other than goodwill	51,360,795,000	41,963,796,000
Goodwill	2,240,478,000	2,240,478,000
Property, plant and equipment	961,392,557,000	893,246,804,000
Deferred tax assets	905,873,000	855,241,000
TOTAL ASSETS	1,464,944,894,000	1,279,380,170,000
TOTAL CURRENT LIABILITIES	317,248,207,000	450,182,594,000
Other current financial liabilities	738,783,000	2,000
Trade and other current payables	200,472,938,000	156,939,551,000
Current accounts payable to related parties	87,507,312,000	258,410,862,000
Current tax liabilities	34,718,000	5,114,119,000
Other current non-financial liabilities	28,494,456,000	29,718,060,000
TOTAL NON-CURRENT LIABILITIES	301,769,861,000	63,065,351,000
Other non-current financial liabilities	2,993,326,000
Trade and other non-current payables	53,968,545,000	27,172,000
Non-current accounts payable to related parties	182,031,404,000
Other long-term provisions	11,853,881,000	13,973,113,000
Deferred tax liabilities	19,818,625,000	21,335,014,000
Non-current provisions for employee benefits	29,801,321,000	27,503,399,000
Other non-current non-financial liabilities	1,302,759,000	226,653,000
TOTAL EQUITY	845,926,826,000	766,132,225,000
Equity attributable to Enel Chile	845,926,826,000	766,132,225,000
Allocated capital	230,137,980,000	230,137,980,000
Retained earnings	933,560,288,000	852,296,368,000
Share Premium	354,220,000	354,220,000
Other reserves	(318,125,662,000)	(316,656,343,000)
TOTAL LIABILITIES AND EQUITY	1,464,944,894,000	1,279,380,170,000
Holdings, Eliminations and Others [Member]
Disclosure Of Segment Assets And Liabilities [Line Items]
TOTAL CURRENT ASSETS	(212,444,109,000)	(297,349,611,000)
Cash and cash equivalents	206,961,282,000	84,610,563,000
Other current financial assets	756,717,000	733,462,000
Other current non-financial assets	16,858,247,000	2,683,237,000
Trade and other current receivables	19,943,923,000	5,485,289,000
Current accounts receivable from related parties	(529,001,152,000)	(428,148,357,000)
Inventories	1,815,792,000	5,211,554,000
Current tax assets	70,221,082,000	32,074,641,000
TOTAL NON-CURRENT ASSETS	892,319,492,000	882,940,148,000
Other non-current financial assets	8,448,000	689,145,000
Other non-current non-financial assets	570,163,000	1,097,000
Trade and other non-current receivables	68,296,820,000	16,968,132,000
Non-Current accounts payable from related companies	(46,519,646,000)
Intangible assets other than goodwill	4,839,854,000	4,632,196,000
Goodwill	881,977,224,000	880,303,644,000
Property, plant and equipment	(23,648,526,000)	(27,471,980,000)
Investment property	6,795,155,000	7,557,356,000
Deferred tax assets		260,558,000
TOTAL ASSETS	679,875,383,000	585,590,537,000
TOTAL CURRENT LIABILITIES	(120,461,904,000)	(142,147,004,000)
Other current financial liabilities	1,989,707,000	214,524,493,000
Trade and other current payables	97,832,722,000	80,008,887,000
Current accounts payable to related parties	(224,558,495,000)	(438,460,843,000)
Other current provisions	446,231,000	393,409,000
Current tax liabilities	243,326,000
Other current non-financial liabilities	3,584,605,000	1,387,050,000
TOTAL NON-CURRENT LIABILITIES	868,557,231,000	686,751,678,000
Other non-current financial liabilities	738,201,642,000	677,000,249,000
Trade and other non-current payables	487,000	487,000
Non-current accounts payable to related parties	115,502,596,000
Deferred tax liabilities	(1,690,218,000)	(4,205,123,000)
Non-current provisions for employee benefits	16,542,724,000	13,956,065,000
TOTAL EQUITY	(68,219,944,000)	40,985,863,000
Equity attributable to Enel Chile	(68,219,944,000)	40,985,863,000
Allocated capital	2,466,234,139,000	2,587,168,133,000
Retained earnings	(661,177,095,000)	(564,427,666,000)
Share Premium	(85,865,712,000)	(85,865,712,000)
Treasury shares		(72,388,009,000)
Other reserves	(1,787,411,276,000)	(1,823,500,883,000)
TOTAL LIABILITIES AND EQUITY	$ 679,875,383,000	$ 585,590,537,000

Information by Segment - Summ_2

Information by Segment - Summary of Comprehensive Income by Segment (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	$ 2,770,834,360	$ 2,457,161,426	$ 2,522,978,282
Total Revenues	2,624,576,323	2,410,360,459	2,484,101,582
Other operating income	146,258,037	46,800,967	38,876,700
Total	(1,421,205,251)	(1,292,177,116)	(1,514,786,921)
Energy purchases	(835,284,742)	(747,646,603)	(902,434,871)
Fuel consumption	(230,944,415)	(231,028,169)	(280,739,362)
Transportation costs	(196,848,788)	(166,875,801)	(155,879,249)
Contribution Margin	1,349,629,109	1,164,984,310	1,008,191,361
Other work performed by the entity and capitalized	17,610,861	16,710,963	14,388,987
Employee benefits expense	(129,604,956)	(123,130,334)	(121,503,777)
Other expenses	(184,143,140)	(167,210,021)	(161,824,074)
Operating Income	526,054,835	670,604,721	578,630,574
Depreciation and amortization expense	(236,627,387)	(215,187,300)	(152,684,106)
Impairment loss recognized in the period’s profit or loss	(10,047,000)	(4,783,072)	(7,937,817)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	10,047,000	4,783,072	7,937,817
FINANCIAL RESULT	(150,893,003)	(110,875,064)	(22,414,654)
Total Financial Income	27,399,275	19,934,468	21,662,688
Other financial income	5,142,727	3,180,909	4,729,078
Financial Costs	(164,897,900)	(122,184,189)	(53,510,882)
Profit (losses) from Indexed Assets and Liabilities	(2,982,268)	(818,146)	916,666
Foreign currency exchange differences	(10,412,110)	(7,807,197)	8,516,874
Share of profit (loss) of associates and joint ventures accounted for using the equity method	366,089	3,190,240	(2,696,904)
Other gains (losses)	1,793,201	3,410,379	113,241,196
Income before taxes	377,321,122	566,330,276	666,760,212
Income tax expense, continuing operations	(61,227,904)	(153,482,519)	(143,342,301)
NET INCOME	316,093,218	412,847,757	523,417,911
Equity owners of Enel Chile	296,153,605	361,709,937	349,382,642
Non-controlling interests	19,939,613	51,137,820	174,035,269
Operating Segments
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	2,770,834,360	2,457,161,426	2,522,978,282
Total Revenues	2,624,576,323	2,410,360,459	2,484,101,582
Energy sales	2,405,903,242	2,202,078,088	2,262,090,558
Other sales	124,113,792	123,345,383	107,362,797
Other services rendered	94,559,289	84,936,988	114,648,227
Other operating income	146,258,037	46,800,967	38,876,700
Total	(1,421,205,251)	(1,292,177,116)	(1,514,786,921)
Energy purchases	(835,284,743)	(747,646,602)	(902,434,871)
Fuel consumption	(230,944,414)	(231,028,169)	(280,739,362)
Transportation costs	(196,848,788)	(166,875,802)	(155,879,249)
Other miscellaneous supplies and services	(158,127,306)	(146,626,543)	(175,733,439)
Contribution Margin	1,349,629,109	1,164,984,310	1,008,191,361
Other work performed by the entity and capitalized	17,610,861	16,710,963	14,388,987
Employee benefits expense	(129,604,956)	(123,130,334)	(121,503,777)
Other expenses	(184,143,140)	(167,210,021)	(161,824,074)
Operating Income	1,053,491,874	891,354,918	739,252,497
Depreciation and amortization expense	(236,627,387)	(215,187,300)	(152,684,106)
Impairment loss recognized in the period’s profit or loss	(280,762,652)	(779,825)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(10,047,000)	(4,783,072)	(7,937,817)
OPERATING INCOME	526,054,835	670,604,721	578,630,574
FINANCIAL RESULT	(150,893,003)	(110,875,064)	(22,414,654)
Total Financial Income	27,399,275	19,934,468	21,662,688
Cash and cash equivalents	8,973,606	9,612,575	8,377,023
Other financial income	18,425,669	10,321,893	13,285,665
Financial Costs	(164,897,900)	(122,184,189)	(53,510,882)
Bank borrowings	(14,487,700)	(20,701,774)	(12,585)
Secured and unsecured obligations	(81,818,564)	(62,255,300)	(42,708,253)
Other	(68,591,636)	(39,227,115)	(10,790,044)
Profit (losses) from Indexed Assets and Liabilities	(2,982,268)	(818,146)	916,666
Foreign currency exchange differences	(10,412,110)	(7,807,197)	8,516,874
Share of profit (loss) of associates and joint ventures accounted for using the equity method	366,089	3,190,240	(2,696,904)
Other gains (losses)	1,793,201	3,410,379	113,241,196
Gain (loss) from other investments	262,512	385,830	105,461,664
Gain (loss) from the sale of property, plant and equipment	1,530,689	3,024,549	7,779,532
Income before taxes	377,321,122	566,330,276	666,760,212
Income tax expense, continuing operations	(61,227,904)	(153,482,519)	(143,342,301)
Net income from continuing operations	316,093,218	412,847,757	523,417,911
NET INCOME	316,093,218	412,847,757	523,417,911
Equity owners of Enel Chile	296,153,605	361,709,937	349,382,642
Non-controlling interests	19,939,613	51,137,820	174,035,269
Operating Segments | Generation
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	1,726,611,508	1,580,653,088	1,634,937,087
Total Revenues	1,581,230,963	1,540,352,133	1,599,032,140
Energy sales	1,472,565,933	1,425,942,129	1,457,671,722
Other sales	97,870,470	103,779,801	94,452,287
Other services rendered	10,794,560	10,630,203	46,908,131
Other operating income	145,380,545	40,300,955	35,904,947
Total	(678,187,609)	(709,506,221)	(903,978,006)
Energy purchases	(160,044,206)	(213,114,437)	(346,954,692)
Fuel consumption	(230,944,414)	(231,028,169)	(280,739,362)
Transportation costs	(169,062,680)	(154,044,158)	(152,869,838)
Other miscellaneous supplies and services	(118,136,309)	(111,319,457)	(123,414,114)
Contribution Margin	1,048,423,899	871,146,867	730,959,081
Other work performed by the entity and capitalized	8,887,421	8,663,737	7,226,484
Employee benefits expense	(62,871,525)	(61,991,737)	(54,222,470)
Other expenses	(120,522,841)	(104,190,567)	(102,821,020)
Operating Income	873,916,954	713,628,300	581,142,075
Depreciation and amortization expense	(196,623,025)	(179,901,682)	(117,337,553)
Impairment loss recognized in the period’s profit or loss	(280,020,263)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(1,338,599)	(106,264)	55,494
OPERATING INCOME	395,935,067	533,620,354	463,860,016
FINANCIAL RESULT	(101,324,905)	(86,621,659)	(36,610,248)
Total Financial Income	15,241,046	8,727,356	5,273,672
Cash and cash equivalents	3,556,554	5,673,621	3,077,708
Other financial income	11,684,492	3,053,735	2,195,964
Financial Costs	(111,219,566)	(82,878,715)	(50,851,829)
Bank borrowings	(11,813,855)	(9,269,535)	(261)
Secured and unsecured obligations	(45,714,879)	(43,965,839)	(42,708,253)
Other	(53,690,832)	(29,643,341)	(8,143,315)
Profit (losses) from Indexed Assets and Liabilities	(5,157,076)	(2,480,291)	145,608
Foreign currency exchange differences	(189,309)	(9,990,009)	8,822,301
Share of profit (loss) of associates and joint ventures accounted for using the equity method	366,089	3,190,240	(2,696,904)
Other gains (losses)	1,683,246	3,434,503	113,088,869
Gain (loss) from other investments	152,557	409,954	105,462,769
Gain (loss) from the sale of property, plant and equipment	1,530,689	3,024,549	7,626,100
Income before taxes	296,659,497	453,623,438	537,641,733
Income tax expense, continuing operations	(40,347,869)	(113,783,941)	(112,099,519)
Net income from continuing operations	256,311,628		188,153,449
NET INCOME	256,311,628	339,839,497	425,542,214
Operating Segments | Distribution
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	1,412,871,738	1,263,224,072	1,326,658,860
Total Revenues	1,408,588,042	1,254,943,604	1,322,422,609
Energy sales	1,318,386,716	1,170,129,333	1,180,426,814
Other sales	9,365,186	16,411,425	12,741,568
Other services rendered	80,836,140	68,402,846	129,254,227
Other operating income	4,283,696	8,280,468	4,236,251
Total	(1,114,936,281)	(972,499,918)	(1,055,708,050)
Energy purchases	(1,056,562,636)	(926,385,346)	(938,067,783)
Transportation costs	(22,725,942)	(9,816,883)	(63,009,956)
Other miscellaneous supplies and services	(35,647,703)	(36,297,689)	(54,630,311)
Contribution Margin	297,935,457	290,724,154	270,950,810
Other work performed by the entity and capitalized	8,723,440	6,667,947	6,630,130
Employee benefits expense	(34,828,194)	(32,598,818)	(38,449,551)
Other expenses	(70,678,241)	(64,179,201)	(61,942,592)
Operating Income	201,152,462	200,614,082	177,188,797
Depreciation and amortization expense	(40,705,580)	(36,677,957)	(36,685,324)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(8,153,419)	(4,676,808)	(7,993,311)
OPERATING INCOME	152,293,463	159,259,317	132,510,162
FINANCIAL RESULT	5,232,127	6,088,801	6,411,837
Total Financial Income	22,742,687	11,166,433	12,894,635
Cash and cash equivalents	1,456,253	1,633,373	1,975,564
Other financial income	21,286,434	9,533,060	10,919,071
Financial Costs	(19,061,123)	(6,724,490)	(7,094,366)
Bank borrowings	(40,508)	(5,374)	(12,299)
Other	(19,020,615)	(6,719,116)	(7,082,067)
Profit (losses) from Indexed Assets and Liabilities	1,843,435	1,616,607	761,262
Foreign currency exchange differences	(292,872)	30,251	(149,694)
Other gains (losses)	12		157,458
Gain (loss) from other investments	12		4,026
Gain (loss) from the sale of property, plant and equipment			153,432
Income before taxes	157,525,602	165,348,118	139,079,457
Income tax expense, continuing operations	(38,748,555)	(42,967,123)	(34,030,322)
Net income from continuing operations	118,777,047		57,935,774
NET INCOME	118,777,047	122,380,995	105,049,135
Holdings, Eliminations and Others [Member]
Disclosure Of Segment Comprehensive Income [Line Items]
Revenues and other operating income	(368,648,886)	(386,715,734)	(438,617,665)
Total Revenues	(365,242,682)	(384,935,278)	(437,353,167)
Energy sales	(385,049,407)	(393,993,374)	(376,007,978)
Other sales	16,878,136	3,154,157	168,942
Other services rendered	2,928,589	5,903,939	(61,514,131)
Other operating income	(3,406,204)	(1,780,456)	(1,264,498)
Total	371,918,639	389,829,023	444,899,135
Energy purchases	381,322,099	391,853,181	382,587,604
Transportation costs	(5,060,166)	(3,014,761)	60,000,545
Other miscellaneous supplies and services	(4,343,294)	990,603	2,310,986
Contribution Margin	3,269,753	3,113,289	6,281,470
Other work performed by the entity and capitalized		1,379,279	532,373
Employee benefits expense	(31,905,237)	(28,539,779)	(28,831,756)
Other expenses	7,057,942	1,159,747	2,939,538
Operating Income	(21,577,542)	(22,887,464)	(19,078,375)
Depreciation and amortization expense	701,218	1,392,339	1,338,771
Impairment loss recognized in the period’s profit or loss	(742,389)	(779,825)
Impairment gain and reversal of impairment loss (impairment loss) determined in accordance with IFRS 9	(554,982)
OPERATING INCOME	(22,173,695)	(22,274,950)	(17,739,604)
FINANCIAL RESULT	(54,800,225)	(30,342,206)	7,783,757
Total Financial Income	(10,584,458)	40,679	3,494,381
Cash and cash equivalents	3,960,799	2,305,581	3,323,751
Other financial income	(14,545,257)	(2,264,902)	170,630
Financial Costs	(34,617,211)	32,580,984	(4,435,313)
Bank borrowings	(2,633,337)	(11,426,865)	(25)
Secured and unsecured obligations	(36,103,685)	(18,289,461)
Other	4,119,811	(2,864,658)	4,435,338
Profit (losses) from Indexed Assets and Liabilities	331,373	45,538	9,796
Foreign currency exchange differences	(9,929,929)	2,152,561	(155,733)
Other gains (losses)	109,943	(24,124)	(5,131)
Gain (loss) from other investments	109,943	(24,124)	(5,131)
Income before taxes	(76,863,977)	(52,641,280)	(9,960,978)
Income tax expense, continuing operations	17,868,520	3,268,545	2,787,540
Net income from continuing operations	(58,995,457)		649,411
NET INCOME	$ (58,995,457)	$ (49,372,735)	$ (7,173,438)

Information by Segment - Summ_3

Information by Segment - Summary of Cash Flow By Segment (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	$ 743,711,719	$ 735,525,522	$ 635,613,720
Cash flows from (used in) investing activities	(311,531,811)	(1,881,559,694)	(146,465,777)
Cash flows from (used in) financing activities	(440,435,688)	966,576,876	(317,595,521)
Operating Segments
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	743,711,719	735,525,522	635,613,720
Cash flows from (used in) investing activities	(311,531,811)	(1,881,559,694)	(146,465,777)
Cash flows from (used in) financing activities	(440,435,688)	966,576,876	(317,595,521)
Operating Segments | Generation
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	754,113,794	638,607,494	488,167,382
Cash flows from (used in) investing activities	(426,038,012)	(451,284,432)	(91,867,647)
Cash flows from (used in) financing activities	(453,927,358)	(249,051,150)	(301,835,211)
Operating Segments | Distribution
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	50,246,845	117,692,384	170,628,958
Cash flows from (used in) investing activities	(28,896,947)	(123,070,452)	(74,464,531)
Cash flows from (used in) financing activities	(23,901,991)	(32,268,227)	(76,923,085)
Holdings, Eliminations and Others [Member]
Disclosure Of Segment Cash Flow [Line Items]
Cash flows from (used in) operating activities	(60,648,920)	(20,774,356)	(23,182,620)
Cash flows from (used in) investing activities	143,403,148	(1,307,204,810)	19,866,401
Cash flows from (used in) financing activities	$ 37,393,661	$ 1,247,896,253	$ 61,162,775

Third Party Guarantees, Other_3

Third Party Guarantees, Other Contingent Assets And Liabilities, And Other Commitments - Additional Information (Detail) $ in Thousands	Jan. 15, 2020CLP ($)item	Apr. 09, 2019CLP ($)item	Dec. 21, 2018CLP ($)	Jul. 25, 2018CLF ( )	Jul. 25, 2018CLP ($)	Jul. 23, 2018CLP ($)	Jul. 18, 2018CLF ( )	Jul. 18, 2018CLP ($)	Jun. 13, 2018CLF ( )	Jun. 13, 2018CLP ($)	Nov. 07, 2017CLP ($)	Dec. 31, 2019CLF ( )item	Dec. 31, 2019USD ($)item	Dec. 31, 2019CLP ($)item	Dec. 31, 2019CLP ($)	Dec. 31, 2018CLP ($)	Jul. 23, 2018CLF ( )	Nov. 03, 2017CLF ( )	Nov. 03, 2017CLP ($)
Disclosure Of Other Provisions [Line Items]
Fine imposed by Superintendence of electricity and fuels |																	10,000
Ruling issed fine imposed (UTA) | item												10	10	10
Provision amount															$ 7,488,391,000
Cross default limit													$ 150,000
Percentage of debt repayment acceleration													50.00%		50.00%
Enel Distribucion Chile S.A. [Member]
Disclosure Of Other Provisions [Line Items]
Fine of illegality claim against the superintendence of electricity and fuels				6,000	$ 297,738,000	$ 496,230,000	3,000	$ 148,869,000	2,000	$ 99,246,000		80,000		$ 3,969,840,000
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																		35,611	$ 1,767,125,000
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. | 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
Maite Alué Letelier Molina
Disclosure Of Other Provisions [Line Items]
Litigation claim amount for damages														1,000,000,000
Enel Green Power Chile Group
Disclosure Of Other Provisions [Line Items]
Debt obligations													$ 22,592,723
Cross default limit													50,000
Proceeds from borrowings													$ 30
Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Percentage of debt repayment acceleration													50.00%		50.00%
Outstanding balance															$ 306,895,060,000
GasAtacama Chile S.A. [Member]
Disclosure Of Other Provisions [Line Items]
Fine of illegality claim against the superintendence of electricity and fuels												120,000		$ 5,964,760,000
Energy purchase commitments [Member]
Disclosure Of Other Provisions [Line Items]
Future energy purchase commitments															7,647,064,000	$ 8,404,005,000
Yankee Bonds [Member]
Disclosure Of Other Provisions [Line Items]
Cross default limit													$ 150,000
Outstanding balance													1,000,000		733,128,457,000
Yankee Bonds [Member] | Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Cross default limit													$ 150,000
Percentage of bondholders, demands debt acceleration												25.00%	25.00%	25.00%
Cross default threshold amount													$ 50,000
Bonds outstanding													717,000		$ 537,266,386,000
Enel Generación Chile Bonds [Member] | Enel Generacion Chile [Member]
Disclosure Of Other Provisions [Line Items]
Cross default limit													$ 30,000
Series H [Member]
Disclosure Of Other Provisions [Line Items]
Financial debt to capitalization ratio, maximum												0.64%	0.64%	0.64%
Debt to capitalization ratio													0.30%		0.30%
Minimum equity requirement															$ 781,206,000,000
Equity															$ 1,963,775,000,000
Financial expense coverage ratio												10.43%	10.43%	10.43%
Net asset position													$ 252,580
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]
Financial debt to capitalization ratio, maximum												0.64%	0.64%	0.64%
Debt to capitalization ratio													0.30%		0.30%
Commencement of major litigation [member] | GasAtacama Chile S.A. [Member]
Disclosure Of Other Provisions [Line Items]
Fine of illegality claim against the superintendence of electricity and fuels	$ 297,738,000	$ 297,738,000
Ruling issed fine imposed (UTA) | item	500	500

Third Party Guarantees, Other_4

Third Party Guarantees, Other Contingent Assets and Liabilities, and Other Commitments - Summary of Indirect Guarantees (Detail) - Indirect Guarantees [Member] - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
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 (1)
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	$ 11,646,991	$ 15,821,814
Credit Agreement One [Member] | Scotiabank Chile [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Credit Agreement
Maturity	September 2019
Creditor Of Guarantee	Scotiabank Chile
Debtor, Company	Enel Green Power Chile Limitada
Relationship	Subsidiary
Type of Guarantee	Aval
Outstanding balance		70,214,637
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	November 2022
Creditor Of Guarantee	Pto. GDN BID
Debtor, Company	Enel Green Power Chile Limitada
Relationship	Subsidiary
Type of Guarantee	Aval
Outstanding balance	$ 22,592,723
Credit Agreement One [Member] | Enel Finance International N V [Member]
Disclosure Of Other Provisions [Line Items]
Description of type of other equity instruments granted	Credit Agreement
Maturity	December 2027
Creditor Of Guarantee	Enel Finance International N.V.
Debtor, Company	Enel Green Power Chile Limitada
Relationship	Subsidiary
Type of Guarantee	Aval
Outstanding balance	$ 484,341,824	447,431,880
Credit Agreement Two [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 Limitada
Relationship	Subsidiary
Type of Guarantee	Aval
Outstanding balance	$ 112,882,048	104,258,927
Credit Agreement Three [Member] | Scotiabank Chile [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	Empresa Eléctrica Panguipulli S.A.
Relationship	Subsidiary
Type of Guarantee	Aval
Outstanding balance	$ 113,069,511	$ 104,477,333

Personnel Figures - Summary of

Personnel Figures - Summary of Number of Employees (Detail) - employee	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	2,148	2,062
Average	2,142	2,096
Managers and Key Executives [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	54	57
Average	56	53
Professionals and Technicians [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	1,938	1,831
Average	1,929	1,874
Staff and Others [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	156	174
Average	157	169
Chile [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	2,125	2,036
Chile [Member] | Managers and Key Executives [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	54	57
Chile [Member] | Professionals and Technicians [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	1,932	1,824
Chile [Member] | Staff and Others [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	139	155
Argentina [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	23	26
Argentina [Member] | Professionals and Technicians [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	6	7
Argentina [Member] | Staff and Others [Member]
Disclosure Of Average Number Of Employees [Line Items]
Number of employees	17	19

Sanctions - Additional Informat

Sanctions - Additional Information (Detail) $ in Thousands

Dec. 31, 2019CLF ( )item

Dec. 31, 2019CLP ($)item

Aug. 16, 2019CLF ( )

Aug. 16, 2019CLP ($)

Jan. 16, 2019CLF ( )

Jan. 16, 2019CLP ($)

Dec. 28, 2018CLF ( )

Dec. 28, 2018CLP ($)

May 14, 2018CLF ( )

May 14, 2018CLP ($)

Dec. 29, 2017CLF ( )

Dec. 29, 2017CLP ($)

May 23, 2016CLF ( )

May 23, 2016CLP ($)

Disclosure Of Sanctions [Line Items]

Provision amount

$ 7,488,391

Enel Green Power Chile Ltda. [Member]

Disclosure Of Sanctions [Line Items]

Provision amount

2,349,758

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

24,812

Superintendence of Electricity and Fuels [Member] | Enel Distribucion Chile S.A. [Member]

Disclosure Of Sanctions [Line Items]

Fine or penalties imposed

1,000

$ 49,623

5,500

$ 272,927

16,911

$ 839,175

Superintendence of Electricity and Fuels [Member] | Snowstorm Liability [Member] | Enel Distribucion Chile S.A. [Member]

Disclosure Of Sanctions [Line Items]

Fine or penalties imposed

20,000

$ 992,460

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

$ 99,246

Superintendence of Electricity and Fuels [Member] | Alleged Duty of Coordination Liability [Member] | Enel Green Power Chile Ltda. [Member]

Disclosure Of Sanctions [Line Items]

Fine or penalties imposed

1,000

$ 49,623

Tarapaca’s Health Secretary’s [Member] | Enel Generación Chile S.A. [Member]

Disclosure Of Sanctions [Line Items]

Fine or penalties imposed

500

$ 24,812

Number of requests for reconsideration are pending | item

2

2

Coquimbo Regional Health Ministry [Member] | Enel Generación Chile S.A. [Member]

Disclosure Of Sanctions [Line Items]

Fine or penalties imposed

500

$ 24,812

Valparaíso Regional Health Ministry [Member] | Enel Generación Chile S.A. [Member]

Disclosure Of Sanctions [Line Items]

Fine or penalties imposed

500

$ 24,812

Environment - Summary of Enviro

Environment - Summary of Environmental Expenses (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Environmental Expenses [Line Items]
Total Disbursements	$ 16,132,535	$ 20,968,708
Amounts Capitalized	6,245,845	20,968,708
Expenses	9,886,690	9,664,683	$ 7,769,230
Disbursement amount in the future	3,078,356	11,304,025
Total Disbursements	19,210,891	9,664,683	11,740,947
Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		12,494,852
Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,988
Expenses	1,988
Total Disbursements	1,988
Hydroelectric Central Environmental Expenditures [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		48,574
Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	3,165
Expenses	3,165
Total Disbursements	3,165
Empresa Electrica Pehuenche S.A. | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		62,560
Empresa Electrica Pehuenche S.A. | Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	882
Expenses	882
Total Disbursements	882
Empresa Electrica Pehuenche S.A. | Hydroelectric Central Environmental Expenditures [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		48,574
Expenses		48,574
Disbursement amount in the future		48,574
Total Disbursements			6,787
Empresa Electrica Pehuenche S.A. | Curillinque Central [Member] | Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	9,061
Expenses	9,061
Total Disbursements	9,061
Empresa Electrica Pehuenche S.A. | Studies, Monitoring and Laboratory Analysis [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		62,560
Expenses		62,560
Total Disbursements		62,560
Empresa Electrica Pehuenche S.A. | Loma Alta Central [Member] | Enviromental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	882
Expenses	882
Total Disbursements	882
Empresa Electrica Pehuenche S.A. | Asbestos Removal from Underground Cables [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		383,914
Empresa Electrica Pehuenche S.A. | Environmental monitoring [Member]
Environmental Expenses [Line Items]
Total Disbursements	576,519
Expenses	576,519
Total Disbursements	576,519
Empresa Electrica Pehuenche S.A. | Environmental monitoring [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		797,543
Empresa Electrica Pehuenche S.A. | Standardization Cems [Member]
Environmental Expenses [Line Items]
Total Disbursements	207,966
Amounts Capitalized	207,966
Total Disbursements	207,966
Empresa Electrica Pehuenche S.A. | Standardization Cems [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		645,302
Empresa Electrica Pehuenche S.A. | Hydraulic Power Stations [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,315
Expenses	2,315
Total Disbursements	2,315
Empresa Electrica Pehuenche S.A. | Hydraulic Power Stations [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		11,567
Enel Generación Chile S.A. [Member] | CC.CC. Environmental Expenses [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,452,158
Amounts Capitalized	855,667
Expenses	596,491
Disbursement amount in the future	855,667
Total Disbursements	2,307,825
Enel Generación Chile S.A. [Member] | CC.CC. Environmental Expenses [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		2,102,056
Enel Generación Chile S.A. [Member] | CC.TT. Environmental Expenses [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,387,657
Amounts Capitalized	1,763,829
Expenses	3,623,828
Disbursement amount in the future	1,763,829
Total Disbursements	7,151,486
Enel Generación Chile S.A. [Member] | CC.TT. Environmental Expenses [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		2,867,523
Enel Generación Chile S.A. [Member] | CC.HH. Environmental Expenses [Member]
Environmental Expenses [Line Items]
Total Disbursements	339,103
Expenses	339,103
Disbursement amount in the future	420,877
Total Disbursements	759,980
Enel Generación Chile S.A. [Member] | CC.HH. Environmental Expenses [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		183,156
Enel Generación Chile S.A. [Member] | C.H. Ralco [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		4,542,216
Expenses		4,542,216
Disbursement amount in the future		4,542,216
Total Disbursements			5,075,137
Enel Generación Chile S.A. [Member] | C.H. Ralco [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		4,542,216
Enel Generación Chile S.A. [Member] | Central Quintero [Member]
Environmental Expenses [Line Items]
Total Disbursements	458,001
Amounts Capitalized	110,923	417,194
Expenses	347,078	417,194
Disbursement amount in the future	37,983	417,194
Total Disbursements	495,984		1,290,133
Enel Generación Chile S.A. [Member] | Central Quintero [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		417,194
Enel Generación Chile S.A. [Member] | Change of Trade X Caple Network [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,476,780
Amounts Capitalized	1,476,780
Total Disbursements	1,476,780
Enel Generación Chile S.A. [Member] | Change of Trade X Caple Network [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		1,382,504
Enel Generación Chile S.A. [Member] | Change Of Trade X Caple Network One [Member] | Weeding and weed control [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,600
Expenses	2,600
Total Disbursements	2,600
Enel Generación Chile S.A. [Member] | Change Of Trade X Caple Network One [Member] | Weeding and weed control [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		154,048
Enel Generación Chile S.A. [Member] | Vegetation Control In Networks [Member] | Weeding and weed control Two [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		6,292,641
Enel Generación Chile S.A. [Member] | Vegetation Control In Networks One [Member]
Environmental Expenses [Line Items]
Total Disbursements	67,291
Expenses	67,291
Total Disbursements	67,291
Enel Generación Chile S.A. [Member] | Vegetation Control in Networks Mt/Bt [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		392,475
Enel Generación Chile S.A. [Member] | Vegetation Control In Networks Mt/Bt One [Member]
Environmental Expenses [Line Items]
Total Disbursements	3,507,502
Expenses	3,507,502
Total Disbursements	3,507,502
Enel Generación Chile S.A. [Member] | Environmental Permits [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		6,970
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.IT [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		2,102,056
Expenses		2,102,056
Total Disbursements		2,102,056	1,252,355
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.IT One [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		2,867,523
Expenses		2,867,523
Total Disbursements		2,867,523	251,277
Enel Generación Chile S.A. [Member] | Environmental Expenses CC.HH [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		183,156
Expenses		183,156
Total Disbursements		183,156	870,281
Enel Distribucion Chile S.A. [Member] | Change of Trade X Caple Network [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		851,792
Expenses		851,792
Disbursement amount in the future		851,792
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Networks [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		134,394
Expenses		134,394
Total Disbursements		134,394	306,419
Enel Distribucion Chile S.A. [Member] | Vegetation Control in Networks Mt/Bt [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		19,416
Expenses		19,416
Disbursement amount in the future		19,416
Enel Distribucion Chile S.A. [Member] | Environmental Permits [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		1,767
Expenses		1,767
Disbursement amount in the future		1,767
Enel Distribucion Chile S.A. [Member] | Environmental Permits One [Member] | Enviromental Management in SSEE Two [Member]
Environmental Expenses [Line Items]
Total Disbursements	64,737
Expenses	64,737
Total Disbursements	64,737
Enel Distribucion Chile S.A. [Member] | Environmental Permits One [Member] | Enviromental Management in SSEE Two [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		52,016
Enel Distribucion Chile S.A. [Member] | Environmental management in Ssee [Member]
Environmental Expenses [Line Items]
Total Disbursements	19,706
Amounts Capitalized		15,383
Expenses	19,706	15,383
Total Disbursements	19,706	15,383
Enel Distribucion Chile S.A. [Member] | Environmental management in Ssee [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		46,907
Enel Distribucion Chile S.A. [Member] | Environmental management in Ssee One [Member]
Environmental Expenses [Line Items]
Total Disbursements	21,719
Amounts Capitalized		46,339
Expenses	21,719	46,339
Total Disbursements	21,719	46,339
Enel Distribucion Chile S.A. [Member] | Environmental Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,337
Expenses	2,337
Total Disbursements	2,337
Enel Distribucion Chile S.A. [Member] | Environmental Management [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		6,634
Enel Distribucion Chile S.A. [Member] | Improvements in the Network M T/Bt [Member]
Environmental Expenses [Line Items]
Total Disbursements	170,077
Amounts Capitalized	170,077
Total Disbursements	170,077
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		176,142
Enel Distribucion Chile S.A. [Member] | Management Respel [Member]
Environmental Expenses [Line Items]
Total Disbursements	103,847
Amounts Capitalized		1,780
Expenses	103,847	1,780
Total Disbursements	103,847	1,780
Enel Distribucion Chile S.A. [Member] | Management Respel [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		1,780
Enel Distribucion Chile S.A. [Member] | Replace TRIFAS Transformers MEJ Quality BT [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,168,343
Amounts Capitalized	1,168,343	1,288,155
Expenses		1,288,155
Disbursement amount in the future		1,288,155
Total Disbursements	1,168,343
Enel Distribucion Chile S.A. [Member] | Replace TRIFAS Transformers MEJ Quality BT [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		2,642,064
Enel Distribucion Chile S.A. [Member] | Replacement TD DAE Concentrica X TD. TRIF. Red Caple [Member]
Environmental Expenses [Line Items]
Total Disbursements	492,260
Amounts Capitalized	492,260	712,455
Expenses		712,455
Disbursement amount in the future		712,455
Total Disbursements	492,260
Enel Distribucion Chile S.A. [Member] | Replacement TD DAE Concentrica X TD. TRIF. Red Caple [Member] | Projects in Prior Period [Member]
Environmental Expenses [Line Items]
Total Disbursements		1,008,416
Enel Distribucion Chile S.A. [Member] | Vegetation Control In Redesat One [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		5,790,042
Expenses		5,790,042
Disbursement amount in the future		2,472,768
Total Disbursements		3,317,274
Enel Distribucion Chile S.A. [Member] | Improvements in the Network M T/BT One [Member]o
Environmental Expenses [Line Items]
Amounts Capitalized		158,086
Expenses		158,086
Disbursement amount in the future		158,086
Enel Distribucion Chile S.A. [Member] | Environmental Management [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		5,831
Expenses		5,831
Total Disbursements		5,831
Enel Distribucion Chile S.A. [Member] | Removal of Asbestos from Underground Cables [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		265,577
Expenses		265,577
Disbursement amount in the future		146,300
Total Disbursements		119,277	203,724
Enel Green Power del Sur Spa. | Carrera Pinto Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	10,954
Expenses	10,954
Total Disbursements	10,954
Enel Green Power del Sur Spa. | Carrera Pinto Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	6,466
Expenses	6,466
Total Disbursements	6,466
Enel Green Power del Sur Spa. | Carrera Pinto Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	4,436
Expenses	4,436
Total Disbursements	4,436
Enel Green Power del Sur Spa. | Finis Terrae Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	7,674
Expenses	7,674
Total Disbursements	7,674
Enel Green Power del Sur Spa. | Finis Terrae Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,154
Expenses	2,154
Total Disbursements	2,154
Enel Green Power del Sur Spa. | La Silla Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,902
Expenses	2,902
Total Disbursements	2,902
Enel Green Power del Sur Spa. | La Silla Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,509
Expenses	1,509
Total Disbursements	1,509
Enel Green Power del Sur Spa. | La Silla Campaigns And Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	20,613
Expenses	20,613
Total Disbursements	20,613
Enel Green Power del Sur Spa. | Los Buenos Aires Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	3,989
Expenses	3,989
Total Disbursements	3,989
Enel Green Power del Sur Spa. | Los Buenos Aires Waste Water Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	882
Expenses	882
Total Disbursements	882
Enel Green Power del Sur Spa. | Waste [Member]
Environmental Expenses [Line Items]
Total Disbursements	4,432
Expenses	4,432
Total Disbursements	4,432
Enel Green Power Del Sur Spa One [Member] | Studies, Monitoring and Laboratory Analysis [Member]
Environmental Expenses [Line Items]
Total Disbursements	83,820
Expenses	83,820
Total Disbursements	83,820
Enel Green Power Del Sur Spa One [Member] | Los Buenos Aires Environment Materials [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,589
Expenses	5,589
Total Disbursements	5,589
Enel Green Power Del Sur Spa One [Member] | Pampa Norte Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,281
Expenses	2,281
Total Disbursements	2,281
Enel Green Power Del Sur Spa One [Member] | Pampa Norte Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	6,618
Expenses	6,618
Total Disbursements	6,618
Enel Green Power Del Sur Spa One [Member] | Pampa Norte Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	3,459
Expenses	3,459
Total Disbursements	3,459
Enel Green Power Del Sur Spa One [Member] | Renaico Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	13,999
Expenses	13,999
Total Disbursements	13,999
Enel Green Power Del Sur Spa One [Member] | Renaico Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,226
Expenses	5,226
Total Disbursements	5,226
Enel Green Power Del Sur Spa One [Member] | Renaico Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	982
Expenses	982
Total Disbursements	982
Enel Green Power Del Sur Spa One [Member] | Renaico Environment Materials [Member]
Environmental Expenses [Line Items]
Total Disbursements	4,822
Expenses	4,822
Total Disbursements	4,822
Enel Green Power Del Sur Spa One [Member] | Renaico Outsourced Services [Member]
Environmental Expenses [Line Items]
Total Disbursements	53,970
Expenses	53,970
Total Disbursements	53,970
Enel Green Power Del Sur Spa One [Member] | Sierra Gorda Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,613
Expenses	1,613
Total Disbursements	1,613
Enel Green Power Del Sur Spa One [Member] | Sierra Gorda Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	42,959
Expenses	42,959
Total Disbursements	42,959
Enel Green Power Del Sur Spa One [Member] | Sierra Gorda Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	3,300
Expenses	3,300
Total Disbursements	3,300
Enel Green Power Del Sur Spa One [Member] | Sierra Gorda Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	127
Expenses	127
Total Disbursements	127
Enel Green Power Del Sur Spa One [Member] | Chanares Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,678
Expenses	1,678
Total Disbursements	1,678
Enel Green Power Del Sur Spa One [Member] | Chanares Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	7,981
Expenses	7,981
Total Disbursements	7,981
Enel Green Power Del Sur Spa One [Member] | Chanares Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,262
Expenses	5,262
Total Disbursements	5,262
Enel Green Power Del Sur Spa One [Member] | Chanares Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,591
Expenses	5,591
Total Disbursements	5,591
Enel Green Power Del Sur Spa One [Member] | Lalackama Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	7,091
Expenses	7,091
Total Disbursements	7,091
Enel Green Power Del Sur Spa One [Member] | Waste [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,098
Expenses	5,098
Total Disbursements	5,098
Empresa Electrica Panguipulli S.A. | Lalackama Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	3,273
Expenses	3,273
Total Disbursements	3,273
Empresa Electrica Panguipulli S.A. | Pilmaiquen Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,450
Expenses	1,450
Total Disbursements	1,450
Empresa Electrica Panguipulli S.A. | Pilmaiquen Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	6,822
Expenses	6,822
Total Disbursements	6,822
Empresa Electrica Panguipulli S.A. | Pullinque Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	785
Expenses	785
Total Disbursements	785
Empresa Electrica Panguipulli S.A. | Pullinque Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,627
Expenses	2,627
Total Disbursements	2,627
Empresa Electrica Panguipulli S.A. | Pullinque Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	4,129
Expenses	4,129
Total Disbursements	4,129
Empresa Electrica Panguipulli S.A. | Pullinque Environment Materials [Member]
Environmental Expenses [Line Items]
Total Disbursements	394
Expenses	394
Total Disbursements	394
Empresa Electrica Panguipulli S.A. | Talinay Poniente Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	46,026
Expenses	46,026
Total Disbursements	46,026
Empresa Electrica Panguipulli S.A. | Talinay Poniete Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	10,745
Expenses	10,745
Total Disbursements	10,745
Parque Eolico Tal Tal SpA | Taltal Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	44,656
Expenses	44,656
Total Disbursements	44,656
Parque Eolico Tal Tal SpA | Taltal Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,476
Expenses	2,476
Total Disbursements	2,476
Parque Eolico Tal Tal SpA | Taltal Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,515
Expenses	2,515
Total Disbursements	2,515
Parque Eolico Tal Tal SpA | Taltal Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	11,546
Expenses	11,546
Total Disbursements	11,546
Parque Eolico Valle de Los Vientos SpA [Member] | Valle de los Vientos Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	11,865
Expenses	11,865
Total Disbursements	11,865
Parque Eolico Valle de Los Vientos SpA [Member] | Valle de los Vientos Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	20,216
Expenses	20,216
Total Disbursements	20,216
Parque Eolico Valle de Los Vientos SpA [Member] | Valle de los Vientos Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	2,471
Expenses	2,471
Total Disbursements	2,471
Parque Eolico Talinay Oriente S.A. [Member] | Talinay Oriente Campaigns and Studies [Member]
Environmental Expenses [Line Items]
Total Disbursements	63,666
Expenses	63,666
Total Disbursements	63,666
Parque Eolico Talinay Oriente S.A. [Member] | Talinay Oriente Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	9,419
Expenses	9,419
Total Disbursements	9,419
Parque Eolico Talinay Oriente S.A. [Member] | Talinay Oriente Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	1,738
Expenses	1,738
Total Disbursements	1,738
Parque Eolico Talinay Oriente S.A. [Member] | Talinay Oriente Waste Management [Member]
Environmental Expenses [Line Items]
Total Disbursements	10,087
Expenses	10,087
Total Disbursements	10,087
Almeyda Solar Spa [Member] | Diego de Almagro Environmental Sanitation [Member]
Environmental Expenses [Line Items]
Total Disbursements	5,216
Expenses	5,216
Total Disbursements	5,216
Almeyda Solar Spa [Member] | Diego de Almagro Wastewater Treatment Plant [Member]
Environmental Expenses [Line Items]
Total Disbursements	6,040
Expenses	6,040
Total Disbursements	$ 6,040
GasAtacama Chile [Member] | Environmental monitoring [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		797,543
Expenses		797,543
Total Disbursements		797,543	1,463,204
GasAtacama Chile [Member] | Standardization Cems [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		645,302
Expenses		645,302
Disbursement amount in the future		645,302
Total Disbursements			$ 1,021,630
GasAtacama Chile [Member] | Hydraulic Power Stations [Member]
Environmental Expenses [Line Items]
Amounts Capitalized		11,567
Expenses		11,567
Total Disbursements		$ 11,567

Summarized Financial Informat_3

Summarized Financial Information of Subsidiaries - Summary of Financial Information on Subsidiaries (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Total Current Assets	$ 1,018,212,660	$ 996,947,772
Total Non Current Assets	6,839,775,504	6,491,072,392
TOTAL ASSETS	7,857,988,164	7,488,020,164
Total Current Liabilities	1,041,299,852	1,217,464,152
Non-current Liabilities	3,069,404,660	2,596,392,231
Equity	3,747,283,652	3,674,163,781	$ 3,786,961,657	$ 3,462,993,642
TOTAL LIABILITIES AND EQUITY	7,857,988,164	7,488,020,164
Revenues	2,624,576,323	2,410,360,459	2,484,101,582
Raw materials and consumables used	(1,421,205,251)	(1,292,177,116)	(1,514,786,921)
Contribution Margin	1,349,629,109	1,164,984,310	1,008,191,361
Income before Taxes	377,321,122	566,330,276	666,760,212
Income tax expense, continuing operations	(61,227,904)	(153,482,519)	(143,342,301)
NET INCOME	316,093,218	412,847,757	523,417,911
Other Comprehensive Income	(34,855,794)	(53,736,400)	69,423,985
TOTAL COMPREHENSIVE INCOME	$ 281,237,424	$ 359,111,357	$ 592,841,896
Grupo Enel Distribucion Chile S A
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Consolidated	Consolidated	Consolidated
Total Current Assets	$ 289,393,933	$ 296,453,470	$ 261,378,069
Total Non Current Assets	1,175,550,962	982,926,699	893,633,580
TOTAL ASSETS	1,464,944,895	1,279,380,169	1,155,011,649
Total Current Liabilities	317,248,208	450,182,594	408,687,866
Non-current Liabilities	301,769,861	63,065,351	61,965,918
Equity	845,926,826	766,132,224	684,357,865
TOTAL LIABILITIES AND EQUITY	1,464,944,895	1,279,380,169	1,155,011,649
Revenues	1,412,871,737	1,263,224,070	1,333,027,456
Raw materials and consumables used	(1,114,936,281)	(972,499,916)	(1,062,076,645)
Contribution Margin	297,935,456	290,724,154	270,950,811
Gross Operating Income	201,152,462	200,614,083	177,188,798
Operating Income	152,293,464	159,259,319	132,510,164
Financial Results	5,232,127	6,088,801	6,411,839
Income before Taxes	157,525,602	165,348,120	139,079,732
Income tax expense, continuing operations	(38,748,555)	(42,967,123)	(34,030,322)
NET INCOME	118,777,047	122,380,997	105,049,408
Other Comprehensive Income	(5,268,320)	(600,422)	1,515,176
TOTAL COMPREHENSIVE INCOME	$ 113,508,727	$ 121,780,574	$ 106,564,584
Enel Generación Chile S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 583,721,624	$ 548,220,314	$ 590,543,532
Total Non Current Assets	2,934,658,635	2,725,004,288	2,602,962,586
TOTAL ASSETS	3,518,380,259	3,273,224,602	3,193,506,118
Total Current Liabilities	449,869,095	569,928,285	489,875,667
Non-current Liabilities	1,081,712,205	938,139,971	891,083,155
Equity	1,986,798,959	1,765,156,347	1,812,547,296
TOTAL LIABILITIES AND EQUITY	3,518,380,259	3,273,224,603	3,193,506,118
Revenues	1,566,647,603	1,454,348,386	1,629,277,585
Raw materials and consumables used	(1,015,974,072)	(1,051,644,602)	(1,140,707,431)
Contribution Margin	550,673,531	402,703,784	488,570,154
Gross Operating Income	438,227,197	300,148,133	364,131,027
Operating Income	273,796,017	226,154,177	285,498,271
Financial Results	(61,735,905)	(49,980,539)	(37,647,691)
Income before Taxes	378,925,840	378,187,852	528,254,308
Income tax expense, continuing operations	(47,979,392)	(42,255,124)	(60,153,339)
NET INCOME	330,946,448	335,932,728	468,100,969
Other Comprehensive Income	(51,590,095)	(101,720,204)	72,617,351
TOTAL COMPREHENSIVE INCOME	$ 279,356,353	$ 234,212,523	$ 540,718,320
Enel Distribucion Chile S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 281,307,184	$ 288,632,068	$ 257,229,219
Total Non Current Assets	1,166,614,368	975,441,251	887,681,380
TOTAL ASSETS	1,447,921,552	1,264,073,319	1,144,910,599
Total Current Liabilities	293,190,807	424,550,547	393,273,852
Non-current Liabilities	301,606,886	62,721,352	61,523,557
Equity	853,123,859	776,801,421	690,113,190
TOTAL LIABILITIES AND EQUITY	1,447,921,552	1,264,073,320	1,144,910,599
Revenues	1,409,434,510	1,259,689,827	1,330,023,450
Raw materials and consumables used	(1,113,958,943)	(971,366,398)	(1,060,875,186)
Contribution Margin	295,475,567	288,323,429	269,148,264
Gross Operating Income	200,130,596	199,676,810	176,635,873
Operating Income	151,879,931	159,625,438	133,340,940
Financial Results	4,770,147	5,418,883	5,252,070
Income before Taxes	156,650,077	165,044,321	138,806,087
Income tax expense, continuing operations	(38,583,882)	(43,812,619)	(35,037,127)
NET INCOME	118,066,195	121,231,702	103,768,960
Other Comprehensive Income	(5,258,044)	(598,985)	1,543,151
TOTAL COMPREHENSIVE INCOME	$ 112,808,151	$ 120,632,717	$ 105,312,110
Empresa Electrica Pehuenche S.A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate	Separate
Total Current Assets	$ 40,913,391	$ 51,279,432	$ 35,369,243
Total Non Current Assets	172,823,608	179,693,183	186,760,346
TOTAL ASSETS	213,736,999	230,972,615	222,129,589
Total Current Liabilities	32,304,951	44,459,384	38,310,560
Non-current Liabilities	44,330,262	46,238,191	48,261,590
Equity	137,101,786	140,275,039	135,557,439
TOTAL LIABILITIES AND EQUITY	213,736,999	230,972,614	222,129,589
Revenues	147,472,130	162,768,188	152,501,383
Raw materials and consumables used	(19,725,956)	(21,539,174)	(36,289,330)
Contribution Margin	127,746,174	141,229,014	116,212,053
Gross Operating Income	121,631,813	135,558,558	110,957,039
Operating Income	114,117,571	128,068,159	103,556,904
Financial Results	2,230,250	224,543	(395,231)
Income before Taxes	116,442,545	128,348,399	103,206,672
Income tax expense, continuing operations	(31,554,368)	(34,669,191)	(26,346,081)
NET INCOME	84,888,177	93,679,208	76,860,591
TOTAL COMPREHENSIVE INCOME	$ 84,888,177	$ 93,679,208	$ 76,860,591
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	$ 162,710,963
Total Non Current Assets	728,572,966	669,741,595
TOTAL ASSETS	821,749,207	832,452,558
Total Current Liabilities	148,584,958	113,123,832
Non-current Liabilities	26,709,820	125,240,941
Equity	646,454,429	594,087,786
TOTAL LIABILITIES AND EQUITY	821,749,207	832,452,559
Revenues	17,470,331	12,831,131
Raw materials and consumables used	(5,891)	(15,655)
Contribution Margin	17,464,440	12,815,476
Gross Operating Income	2,941,543	2,521,606
Operating Income	1,770,750	1,702,927
Financial Results	(3,819,658)	(5,337,680)
Income before Taxes	4,271,982	71,323,446
Income tax expense, continuing operations	789,773	1,601,922
NET INCOME	5,061,755	72,925,368
Other Comprehensive Income	47,305,179	71,701,018
TOTAL COMPREHENSIVE INCOME	$ 52,366,934	$ 144,626,386
Empresa Electrica Panguipulli S .A. [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	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	65,392,897	45,097,744
Raw materials and consumables used	(10,089,283)	(5,320,421)
Contribution Margin	55,303,614	39,777,323
Gross Operating Income	45,295,840	32,476,777
Operating Income	25,634,374	18,680,884
Financial Results	(7,544,701)	(1,954,238)
Income before Taxes	18,091,741	16,726,646
Income tax expense, continuing operations	(3,984,287)	(2,647,884)
NET INCOME	14,107,454	14,078,762
Other Comprehensive Income	4,145,983	(3,643,974)
TOTAL COMPREHENSIVE INCOME	$ 18,253,437	$ 10,434,788
Geotérmica del Norte [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Separate	Separate
Total Current Assets	$ 21,392,710	$ 21,765,295
Total Non Current Assets	389,334,650	347,871,452
TOTAL ASSETS	410,727,360	369,636,747
Total Current Liabilities	34,868,730	20,910,840
Non-current Liabilities	316,179	293,675
Equity	375,542,451	348,432,232
TOTAL LIABILITIES AND EQUITY	410,727,360	369,636,747
Revenues	25,736,468	17,023,794
Raw materials and consumables used	(4,666,032)	(2,109,769)
Contribution Margin	21,070,436	14,914,025
Gross Operating Income	16,240,808	13,168,978
Operating Income	985,760	2,001,882
Financial Results	(2,431,778)	(3,676,151)
Income before Taxes	(1,446,018)	(1,674,269)
Income tax expense, continuing operations	(268,161)	454,355
NET INCOME	(1,714,179)	(1,219,914)
Other Comprehensive Income	28,824,398	45,243,420
TOTAL COMPREHENSIVE INCOME	$ 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
Total Current Assets	$ 75,985,899	$ 63,831,605
Total Non Current Assets	91,924,981	87,493,829
TOTAL ASSETS	167,910,880	151,325,434
Total Current Liabilities	3,479,000	6,173,259
Non-current Liabilities	25,290,284	18,876,242
Equity	139,141,596	126,275,934
TOTAL LIABILITIES AND EQUITY	167,910,880	151,325,435
Revenues	12,662,715	10,058,036
Raw materials and consumables used	(891,215)	(2,434,415)
Contribution Margin	11,771,500	7,623,621
Gross Operating Income	8,846,598	5,310,400
Operating Income	1,956,884	1,014,857
Financial Results	1,076,843	1,312,902
Income before Taxes	3,033,727	2,327,759
Income tax expense, continuing operations	(812,645)	(613,097)
NET INCOME	2,221,082	1,714,661
Other Comprehensive Income	10,644,581	16,552,523
TOTAL COMPREHENSIVE INCOME	$ 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
Total Current Assets	$ 190,106,543	$ 129,849,852
Total Non Current Assets	732,488,168	655,431,547
TOTAL ASSETS	922,594,711	785,281,399
Total Current Liabilities	54,033,958	44,078,091
Non-current Liabilities	534,433,995	467,399,245
Equity	334,126,758	273,804,063
TOTAL LIABILITIES AND EQUITY	922,594,711	785,281,399
Revenues	144,036,603	94,473,391
Raw materials and consumables used	(25,778,573)	(21,024,045)
Contribution Margin	118,258,030	73,449,346
Gross Operating Income	99,202,697	60,053,812
Operating Income	66,657,147	37,537,228
Financial Results	(23,438,689)	(24,991,814)
Income before Taxes	43,218,457	12,545,413
Income tax expense, continuing operations	(9,496,203)	(3,455,173)
NET INCOME	33,722,254	9,090,240
Other Comprehensive Income	25,195,173	34,497,623
TOTAL COMPREHENSIVE INCOME	$ 58,917,427	$ 43,587,863
Grupo Enel Green Power [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Consolidated	Consolidated
Total Current Assets	$ 371,759,514	$ 344,469,181
Total Non Current Assets	1,775,791,317	1,628,444,820
TOTAL ASSETS	2,147,550,831	1,972,914,001
Total Current Liabilities	377,911,553	334,639,971
Non-current Liabilities	773,916,901	768,719,376
Equity	995,722,377	869,554,654
TOTAL LIABILITIES AND EQUITY	2,147,550,831	1,972,914,001
Revenues	273,239,617	183,008,879
Raw materials and consumables used	(26,298,083)	(22,330,367)
Contribution Margin	246,941,534	160,678,512
Gross Operating Income	204,174,344	131,378,740
Operating Income	115,016,205	69,236,957
Financial Results	(42,962,825)	(38,674,306)
Income before Taxes	71,875,897	30,471,438
Income tax expense, continuing operations	(16,890,333)	(8,837,176)
NET INCOME	54,985,564	21,634,262
Other Comprehensive Income	122,991,836	173,923,954
TOTAL COMPREHENSIVE INCOME	$ 177,977,400	$ 195,558,216
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	$ 591,085,044	$ 672,467,353	$ 662,804,359
Total Non Current Assets	2,996,113,733	2,996,760,726	2,891,657,830
TOTAL ASSETS	3,587,198,777	3,669,228,079	3,554,462,189
Total Current Liabilities	488,183,716	593,881,208	543,356,500
Non-current Liabilities	1,125,160,667	1,077,855,824	1,022,091,737
Equity	1,973,854,394	1,997,491,047	1,989,013,952
TOTAL LIABILITIES AND EQUITY	3,587,198,777	3,669,228,079	3,554,462,189
Revenues	1,638,374,434	1,529,364,081	1,634,937,088
Raw materials and consumables used	(834,936,802)	(818,284,050)	(903,978,007)
Contribution Margin	803,437,632	711,080,031	730,959,081
Gross Operating Income	669,742,608	582,249,559	581,142,074
Operating Income	280,918,860	464,383,396	463,860,015
Financial Results	(58,362,079)	(47,947,351)	(36,610,248)
Income before Taxes	224,783,599	423,152,001	537,641,733
Income tax expense, continuing operations	(23,457,536)	(104,946,765)	(112,099,519)
NET INCOME	201,326,063	318,205,236	425,542,214
Other Comprehensive Income	(55,986,126)	(106,994,091)	67,663,516
TOTAL COMPREHENSIVE INCOME	$ 145,339,937	$ 211,211,145	$ 493,205,730
Grupo Gas Atacama Chile S A [Member]
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Type of Financial Statements	Consolidated	Consolidated	Consolidated
Total Current Assets		$ 154,726,337	$ 182,143,224
Total Non Current Assets		601,914,918	611,319,090
TOTAL ASSETS		756,641,255	793,462,314
Total Current Liabilities		61,155,091	75,370,131
Non-current Liabilities		94,466,222	83,894,880
Equity	$ 0	601,019,942	634,197,303
TOTAL LIABILITIES AND EQUITY		756,641,255	793,462,314
Revenues	186,194,326	271,433,789	307,272,380
Raw materials and consumables used	(54,061,747)	(94,746,408)	(170,752,796)
Contribution Margin	132,132,579	176,687,381	136,519,584
Gross Operating Income	110,016,642	146,123,452	106,213,750
Operating Income	(107,102,417)	109,465,013	70,509,184
Financial Results	1,143,576	1,808,644	1,432,674
Income before Taxes	(103,917,448)	115,039,230	80,142,531
Income tax expense, continuing operations	56,076,224	(27,946,019)	(25,417,139)
NET INCOME	(47,841,224)	87,093,211	54,725,392
Other Comprehensive Income	(4,396,031)	(5,273,886)	(3,338,115)
TOTAL COMPREHENSIVE INCOME	$ (52,237,255)	$ 81,819,325	$ 51,387,277

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) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents	$ 235,684,500	$ 245,171,924	$ 419,456,026	$ 245,999,192
Other current financial assets	1,310,595	40,303,173
Other current non-financial assets	34,634,563	22,406,088
Trade and other current receivables	511,455,330	478,170,067
Current accounts receivable from related parties	68,182,133	54,171,060
Inventories	39,672,250	56,961,643
TOTAL CURRENT ASSETS	1,018,212,660	996,947,772
Other non-current financial assets	7,220,620	7,269,669
Other non-current non-financial assets	38,050,184	44,608,012
Trade and other non-current receivables	313,574,385	60,527,843
Non-current accounts receivable from related parties	34,407,142
Investments accounted for using the equity method	7,928,588	12,873,531	16,912,454
Intangible assets other than goodwill	132,278,593	115,372,393	55,170,904
Goodwill	917,352,974	915,044,725	887,257,655
Property, plant and equipment	5,360,319,624	5,308,647,633	3,585,687,137
Investment property	6,795,155	7,557,356	8,356,772
Deferred tax assets	21,848,239	19,171,230
TOTAL NON-CURRENT ASSETS	6,839,775,504	6,491,072,392
TOTAL ASSETS	7,857,988,164	7,488,020,164
Other current financial liabilities	214,656,576	410,665,815
Trade and other current payables	599,263,208	554,286,324
Current accounts payable to related parties	159,809,887	157,936,325
Other current provisions	4,065,965	5,588,786
Current tax liabilities	17,995,833	17,677,920
Other current non-financial liabilities	45,508,383	71,308,982
Other non-current financial liabilities	1,740,169,919	1,705,833,503
TOTAL CURRENT LIABILITIES	1,041,299,852	1,217,464,152
Trade and other non-current payables	56,250,085	2,584,180
Non-current accounts payable to related parties	784,373,484	447,193,802
Other Provisions	175,926,247	111,460,161	84,059,008
Other long-term provisions	175,926,247	111,460,161	$ 84,059,008
Deferred tax liabilities	249,284,641	278,080,054
Non-current provisions for employee benefits	66,163,490	56,602,664
Other non-current non-financial liabilities	1,302,759	226,653
TOTAL NON-CURRENT LIABILITIES	3,069,404,660	2,596,392,231
TOTAL LIABILITIES	4,110,704,512	3,813,856,383
Details of Assets and Liabilities in Foreign Currency [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents	235,684,500	245,171,924
Other current financial assets	1,310,595	40,303,173
Other current non-financial assets	34,634,563	22,406,088
Trade and other current receivables	511,455,330	478,170,067
Current accounts receivable from related parties	68,182,133	54,171,060
Inventories	39,672,250	56,961,643
Current tax assets	127,273,289	99,763,817
TOTAL CURRENT ASSETS	1,018,212,660	996,947,772
Other non-current financial assets	7,220,620	7,269,669
Other non-current non-financial assets	38,050,184	44,608,012
Trade and other non-current receivables	313,574,385	60,527,843
Non-current accounts receivable from related parties	34,407,142
Investments accounted for using the equity method	7,928,588	12,873,531
Intangible assets other than goodwill	132,278,593	115,372,393
Goodwill	917,352,974	915,044,725
Property, plant and equipment	5,360,319,624	5,308,647,633
Investment property	6,795,155	7,557,356
Deferred tax assets	21,848,239	19,171,230
TOTAL NON-CURRENT ASSETS	6,839,775,504	6,491,072,392
TOTAL ASSETS	7,857,988,164	7,488,020,164
Other current financial liabilities	214,656,576	410,665,815
Trade and other current payables	599,263,208	554,286,324
Current accounts payable to related parties	159,809,887	157,936,325
Other current provisions	4,065,965	5,588,786
Current tax liabilities	17,995,833	17,677,920
Other current non-financial liabilities	45,508,383	71,308,982
Other non-current financial liabilities	1,740,169,919	1,705,833,503
TOTAL CURRENT LIABILITIES	1,041,299,852	1,217,464,152
Trade and other non-current payables	56,250,085	2,584,180
Non-current accounts payable to related parties	784,373,484	447,193,802
Other Provisions	171,860,282	105,871,375
Other long-term provisions	171,860,282	105,871,375
Deferred tax liabilities	249,284,641	278,080,054
Non-current provisions for employee benefits	66,163,490	56,602,664
Other non-current non-financial liabilities	1,302,759	226,653
TOTAL NON-CURRENT LIABILITIES	3,069,404,660	2,596,392,231
TOTAL LIABILITIES	4,110,704,512	3,813,856,383
Details of Assets and Liabilities in Foreign Currency [Member] | Foreign Currency USD [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents	18,115,385	16,575,872
Other current financial assets	322,317	38,969,410
Other current non-financial assets	535,716	2,832,782
Trade and other current receivables	10,964,072	3,193,959
Current accounts receivable from related parties	40,603,423	6,997,861
Inventories	4,212,534	4,451,134
Current tax assets	9,740,736	3,678
TOTAL CURRENT ASSETS	84,494,183	73,024,696
Other non-current financial assets	2	4,227,628
Trade and other non-current receivables	167,297,679	17,074,839
Non-current accounts receivable from related parties	34,407,142
Investments accounted for using the equity method		3,052,983
Intangible assets other than goodwill	45,684,307	44,865,424
Goodwill	8,274,916	7,640,247
Property, plant and equipment	1,638,296,993	1,523,774,815
Deferred tax assets	15,318,038	18,055,431
TOTAL NON-CURRENT ASSETS	1,909,279,077	1,618,691,367
TOTAL ASSETS	1,993,773,260	1,691,716,063
Other current financial liabilities	178,791,077	165,786,810
Trade and other current payables	66,209,531	44,138,753
Current accounts payable to related parties	11,910,024	324,743
Other current provisions		12,510
Current tax liabilities	55,049	22,626
Other current non-financial liabilities	2,933,274	2,766,862
Other non-current financial liabilities	1,431,324,011	1,408,715,068
TOTAL CURRENT LIABILITIES	259,898,955	213,052,304
Trade and other non-current payables	56,222,424	31,124
Non-current accounts payable to related parties	486,839,483	447,193,802
Other Provisions	16,545,238	12,392,385
Other long-term provisions	16,545,238	12,392,385
Deferred tax liabilities	88,267,463	74,730,155
Non-current provisions for employee benefits	632,115	532,225
TOTAL NON-CURRENT LIABILITIES	2,079,830,734	1,943,594,759
TOTAL LIABILITIES	2,339,729,689	2,156,647,063
Details of Assets and Liabilities in Foreign Currency [Member] | Foreign Currency Euros [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents	654,319	103,847
Trade and other current receivables	84,090	3,905
Current accounts receivable from related parties	22,859,682	26,475,919
Inventories	447,603
TOTAL CURRENT ASSETS	24,045,694	26,583,671
Property, plant and equipment	7,763,853
TOTAL NON-CURRENT ASSETS	7,763,853
TOTAL ASSETS	31,809,547	26,583,671
Other current financial liabilities	628,053
Trade and other current payables	4,333,666	2,347,924
Current accounts payable to related parties	109,765,956	82,619,960
Other current non-financial liabilities	3,391,727
Other non-current financial liabilities	7,069,801
TOTAL CURRENT LIABILITIES	118,119,402	84,967,884
Non-current accounts payable to related parties	297,534,001
TOTAL NON-CURRENT LIABILITIES	304,603,802
TOTAL LIABILITIES	422,723,204	84,967,884
Details of Assets and Liabilities in Foreign Currency [Member] | Foreign Currency Chilean Peso [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents	209,818,277	222,434,412
Other current financial assets	280,529	644,618
Other current non-financial assets	34,098,847	17,838,717
Trade and other current receivables	500,407,168	474,941,686
Current accounts receivable from related parties	3,419,722	20,673,951
Inventories	34,959,079	52,510,509
Current tax assets	117,532,553	99,614,294
TOTAL CURRENT ASSETS	900,516,175	888,658,187
Other non-current financial assets	7,220,618	2,352,896
Other non-current non-financial assets	37,993,234	44,390,009
Trade and other non-current receivables	146,276,706	33,425,943
Investments accounted for using the equity method	7,928,588	9,520,350
Intangible assets other than goodwill	86,594,286	70,247,490
Goodwill	909,078,058	907,404,478
Property, plant and equipment	3,678,912,343	3,769,310,697
Investment property	6,795,155	7,557,356
Deferred tax assets	6,530,201	1,115,799
TOTAL NON-CURRENT ASSETS	4,887,329,189	4,845,325,018
TOTAL ASSETS	5,787,845,364	5,733,983,205
Other current financial liabilities	20,005	212,736,911
Trade and other current payables	523,504,426	503,689,338
Current accounts payable to related parties	38,133,907	74,991,622
Other current provisions	4,065,965	5,551,609
Current tax liabilities	17,940,784	17,243,717
Other current non-financial liabilities	38,929,298	68,532,059
Other non-current financial liabilities	68,922
TOTAL CURRENT LIABILITIES	622,594,385	882,745,256
Trade and other non-current payables	27,661	2,553,056
Other Provisions	155,315,044	93,478,990
Other long-term provisions	155,315,044	93,478,990
Deferred tax liabilities	161,017,178	203,349,899
Non-current provisions for employee benefits	65,531,375	56,070,439
Other non-current non-financial liabilities	1,302,759	226,653
TOTAL NON-CURRENT LIABILITIES	383,262,939	355,679,037
TOTAL LIABILITIES	1,005,857,324	1,238,424,293
Details of Assets and Liabilities in Foreign Currency [Member] | Foreign Currency Argentine peso [member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Cash and cash equivalents	7,096,519	6,057,793
Other current non-financial assets		917,718
Trade and other current receivables		30,517
Current tax assets		145,845
TOTAL CURRENT ASSETS	7,096,519	7,151,873
Other non-current non-financial assets		218,003
Trade and other non-current receivables		21,255
Investments accounted for using the equity method		300,198
Intangible assets other than goodwill		259,479
Property, plant and equipment		15,562,121
TOTAL NON-CURRENT ASSETS		16,361,056
TOTAL ASSETS	7,096,519	23,512,929
Trade and other current payables		511,460
Other current provisions		24,667
Current tax liabilities		411,577
Other current non-financial liabilities		10,061
TOTAL CURRENT LIABILITIES		957,765
TOTAL LIABILITIES		957,765
Details of Assets and Liabilities in Foreign Currency [Member] | Foreign Currency U.F. [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Other current financial assets	707,749	689,145
Other current non-financial assets		816,871
Inventories	53,034
TOTAL CURRENT ASSETS	760,783	1,506,016
Other non-current financial assets		689,145
Other non-current non-financial assets	56,950
Trade and other non-current receivables		10,005,806
Property, plant and equipment	35,346,435
TOTAL NON-CURRENT ASSETS	35,403,385	10,694,951
TOTAL ASSETS	36,164,168	12,200,967
Other current financial liabilities	35,217,441	32,142,094
Trade and other current payables	5,215,585	3,598,849
Other current non-financial liabilities	254,084
Other non-current financial liabilities	301,707,185	297,118,435
TOTAL CURRENT LIABILITIES	40,687,110	35,740,943
TOTAL NON-CURRENT LIABILITIES	301,707,185	297,118,435
TOTAL LIABILITIES	342,394,295	332,859,378
Details of Assets and Liabilities in Foreign Currency [Member] | Foreign Currency Brazilian Real [Member]
Disclosure Of Assets And Liabilities By Currency [Line Items]
Current accounts receivable from related parties	465,970	23,329
TOTAL CURRENT ASSETS	465,970	23,329
TOTAL ASSETS	465,970	$ 23,329
Details of Assets and Liabilities in Foreign Currency [Member] | 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

Appendix 2 Additional Informa_3

Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Aging of Trade and Other Receivables (Detail) - CLP ($) $ in Thousands	Aug. 31, 2016	Dec. 31, 2019	Dec. 31, 2014	Dec. 31, 2018
Trade And Other Receivables [Line Items]
Trade receivables, gross		$ 456,552,682		$ 417,927,182
Impairment losses of other assets	$ (32,834,160)		$ (12,581,947)
Other receivables, Current		43,780,770		54,141,073
Trade and other receivables, Current		511,455,330		478,170,067
Trade receivables, Non-current		191,966,929		2,046,845
Trade accounts receivable and other accounts receivable		3,734,116		2,829,368
Trade and other receivables, Non-current		313,574,385		60,527,843
Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts				(39,126,435)
Other Receivables [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts				(10,353,445)
Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		500,040,783		457,053,617
Other receivables, Current		53,720,399		63,804,751
Trade and other receivables, Current		566,919,977		527,649,947
Trade receivables, Non-current		191,966,929		2,046,845
Trade accounts receivable and other accounts receivable		3,734,116		2,829,368
Trade and other receivables, Non-current		313,574,385		60,527,843
Oficio Circular Official Bulletin No715
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		511,455,330		478,170,067
Trade and other receivables, Non-current		313,574,385		60,527,843
Oficio Circular Official Bulletin No715 | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(43,488,101)
Oficio Circular Official Bulletin No715 | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		13,158,795
Trade receivables, Non-current		117,873,340
Oficio Circular Official Bulletin No715 | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		500,040,783		457,053,617
Impairment losses of other assets		(2,036,917)
Trade receivables, Non-current		191,966,929		2,046,845
Oficio Circular Official Bulletin No715 | Gross Carrying Amount [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(9,939,628)
Trade and other receivables, Current		53,720,398		70,596,330
Trade and other receivables, Non-current		3,734,116		58,480,998
Oficio Circular Official Bulletin No715 | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		445,500,892		419,901,153
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(3,148,393)
Allowance for doubtful accounts				(1,309,684)
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Accounts receivable for leasing, gross		13,158,795
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		393,746,637		360,967,952
Impairment losses of other assets		(2,036,917)
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Carrying Amount [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(55,690)
Other receivables, Current		43,836,460		60,242,885
Oficio Circular Official Bulletin No715 | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		32,102,797		26,276,061
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(357,214)
Allowance for doubtful accounts				(244,773)
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		32,460,011		26,520,834
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		7,445,293		7,805,361
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(484,022)
Allowance for doubtful accounts				(260,401)
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		7,929,315		8,065,762
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		4,113,180		3,629,840
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(587,103)
Allowance for doubtful accounts				(317,546)
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		4,700,283		3,947,386
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		2,320,709		1,677,284
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(677,088)
Allowance for doubtful accounts				(419,163)
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member] | Gross Carrying Amount [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		2,997,797		2,096,447
Oficio Circular Official Bulletin No715 | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		1,908,418		877,649
Oficio Circular Official Bulletin No715 | 121-150 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(845,948)
Allowance for doubtful accounts				(523,349)
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		2,754,366		1,400,998
Oficio Circular Official Bulletin No715 | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		2,233,138		1,361,556
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(804,567)
Allowance for doubtful accounts				(584,135)
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		3,037,705		1,945,691
Oficio Circular Official Bulletin No715 | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		1,253,184		894,385
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(1,413,915)
Allowance for doubtful accounts				(634,104)
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		2,667,099		1,528,489
Oficio Circular Official Bulletin No715 | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		1,396,602		777,678
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(1,114,081)
Allowance for doubtful accounts				(2,085,824)
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		2,510,683		2,863,502
Oficio Circular Official Bulletin No715 | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade and other receivables, Current		13,181,117		14,969,100
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Trade Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(34,055,770)
Allowance for doubtful accounts				(32,747,456)
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts				(10,353,445)
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		47,236,887		47,716,556
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Gross Carrying Amount [Member] | Other Receivables [Member]
Trade And Other Receivables [Line Items]
Impairment losses of other assets		(9,883,938)
Other receivables, Current		$ 9,883,938		$ 10,353,445

Appendix 2 Additional Informa_4

Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Trade and Other Receivables by Type of Portfolio (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019CLP ($)customer	Dec. 31, 2018CLP ($)customer
Trade And Other Receivables [Line Items]
Number of Customers | customer	3,175	4,114
Gross Amount	$ 511,455,330	$ 478,170,067
Oficio Circular Official Bulletin No715
Trade And Other Receivables [Line Items]
Gross Amount	$ 511,455,330	$ 478,170,067
Oficio Circular Official Bulletin No715 | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,039,630	1,900,400
Gross Amount	$ 572,250,897	$ 447,898,905
Oficio Circular Official Bulletin No715 | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	79,027	79,789
Gross Amount	$ 119,756,815	$ 11,201,557
Oficio Circular Official Bulletin No715 | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,118,657	1,980,189
Gross Amount	$ 692,007,712	$ 459,100,462
Oficio Circular Official Bulletin No715 | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 445,500,892	$ 419,901,153
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,340,828	1,370,536
Gross Amount	$ 469,633,677	$ 353,865,825
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	36,952	42,898
Gross Amount	$ 116,079,889	$ 9,101,666
Oficio Circular Official Bulletin No715 | Current Portfolio [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,377,780	1,413,434
Gross Amount	$ 585,713,566	$ 362,967,491
Oficio Circular Official Bulletin No715 | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 32,102,797	$ 26,276,061
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	433,225	390,536
Gross Amount	$ 30,871,310	$ 25,894,683
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	21,280	19,304
Gross Amount	$ 1,588,701	$ 626,151
Oficio Circular Official Bulletin No715 | 1-30 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	454,505	409,840
Gross Amount	$ 32,460,011	$ 26,520,834
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 7,445,293	$ 7,805,361
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	106,521	83,029
Gross Amount	$ 7,630,607	$ 7,864,638
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	8,018	6,649
Gross Amount	$ 298,708	$ 201,124
Oficio Circular Official Bulletin No715 | From 31 to 60 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	114,539	89,678
Gross Amount	$ 7,929,315	$ 8,065,762
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 4,113,180	$ 3,629,840
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	17,349	14,466
Gross Amount	$ 4,363,345	$ 3,827,182
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,080	2,014
Gross Amount	$ 336,938	$ 120,204
Oficio Circular Official Bulletin No715 | 61 - 90 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	19,429	16,480
Gross Amount	$ 4,700,283	$ 3,947,386
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 2,320,709	$ 1,677,284
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	11,084	7,515
Gross Amount	$ 2,852,961	$ 2,007,221
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,661	1,182
Gross Amount	$ 144,836	$ 89,226
Oficio Circular Official Bulletin No715 | From 91 to 120 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	12,745	8,697
Gross Amount	$ 2,997,797	$ 2,096,447
Oficio Circular Official Bulletin No715 | 121 to 150 days | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	5,819	4,393
Gross Amount	$ 2,510,766	$ 1,266,995
Oficio Circular Official Bulletin No715 | 121 to 150 days | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	1,256	892
Gross Amount	$ 243,600	$ 134,003
Oficio Circular Official Bulletin No715 | 121 to 150 days | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	7,075	5,285
Gross Amount	$ 2,754,366	$ 1,400,998
Oficio Circular Official Bulletin No715 | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 2,233,138	$ 1,361,556
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	3,962	3,007
Gross Amount	$ 2,863,659	$ 1,697,721
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	544	459
Gross Amount	$ 174,046	$ 247,970
Oficio Circular Official Bulletin No715 | 151-180 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	4,506	3,466
Gross Amount	$ 3,037,705	$ 1,945,691
Oficio Circular Official Bulletin No715 | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 1,253,184	$ 894,385
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	3,647	2,805
Gross Amount	$ 2,571,731	$ 1,446,409
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	377	311
Gross Amount	$ 95,368	$ 82,080
Oficio Circular Official Bulletin No715 | 181-210 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	4,024	3,116
Gross Amount	$ 2,667,099	$ 1,528,489
Oficio Circular Official Bulletin No715 | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 1,396,602	$ 777,678
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	2,677	3,237
Gross Amount	$ 2,421,028	$ 2,772,883
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	342	311
Gross Amount	$ 89,655	$ 90,619
Oficio Circular Official Bulletin No715 | 211-250 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	3,019	3,548
Gross Amount	$ 2,510,683	$ 2,863,502
Oficio Circular Official Bulletin No715 | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Gross Amount	$ 13,181,117	$ 14,969,100
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	114,518	20,876
Gross Amount	$ 46,531,813	$ 47,255,348
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	6,517	5,769
Gross Amount	$ 705,074	$ 508,514
Oficio Circular Official Bulletin No715 | More than 251 days [Member] | Gross Portfolio [Member]
Trade And Other Receivables [Line Items]
Number of Customers | customer	121,035	26,645
Gross Amount	$ 47,236,887	$ 47,763,862

Appendix 2 Additional Informa_5

Appendix 2 Additional Information Oficio Circular (Official Bulletin) 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, 2019CLP ($)customer	Dec. 31, 2018CLP ($)customer
Portfolio In Default And In Legal Collection Process [Line Items]
Number of Customers | customer	3,175	4,114
Amount | $	$ 6,571,586	$ 10,708,755
Notes receivable in default [Member]
Portfolio In Default And In Legal Collection Process [Line Items]
Number of Customers | customer	1,888	1,876
Amount | $	$ 258,073	$ 258,372
Notes receivable in legal collection process [Member]
Portfolio In Default And In Legal Collection Process [Line Items]
Number of Customers | customer	1,287	2,238
Amount | $	$ 6,313,513	$ 10,450,383

Appendix 2 Additional Informa_6

Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Provisions and Write-offs Portfolio (Detail) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs	$ 10,047,000	$ 4,783,072
Non-renegotiated Portfolio [Member]
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs	4,403,135	2,318,330
Renegotiated Portfolio [Member]
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs	$ 5,643,865	2,461,643
Recoveries [Member]
Provisions And Writeoffs For Portfolio [Line Items]
Provisions and Write-offs		$ 3,099

Appendix 2 Additional Informa_7

Appendix 2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Number and Value of Operations (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2019CLP ($)item	Dec. 31, 2018CLP ($)item	Dec. 31, 2019CLP ($)item	Dec. 31, 2018CLP ($)item
Impairment Provisions And Recoveries [Abstract]
Number of operations | item	52,870	7,357	88,750	19,810
Value of operations | $	$ 2,451,690	$ 1,596,443	$ 10,047,000	$ 4,783,072

Appendix 2.1 Additional Informa

Appendix 2.1 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Trade Receivables by Aging (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Trade And Other Receivables [Line Items]
Trade receivables, gross	$ 456,552,682	$ 417,927,182
Trade and other receivables, Current	511,455,330	478,170,067
Trade receivables, Non-current	191,966,929	2,046,845
Trade and other receivables, Non-current	313,574,385	60,527,843
Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	500,040,783	457,053,617
Trade and other receivables, Current	566,919,977	527,649,947
Trade receivables, Non-current	191,966,929	2,046,845
Trade and other receivables, Non-current	313,574,385	60,527,843
Portfolio stratification [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(43,488,101)	(39,126,435)
Trade and other receivables, Current	456,552,682	417,927,182
Trade receivables, Non-current		2,046,845
Trade and other receivables, Non-current	191,966,929
Portfolio stratification [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	500,040,783	457,053,617
Trade receivables, Non-current	191,966,929	2,046,845
Portfolio stratification [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(3,148,393)	(1,309,684)
Trade and other receivables, Current	390,598,244	359,658,268
Portfolio stratification [Member] | Current Portfolio [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	393,746,637	360,967,952
Portfolio stratification [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(357,214)	(244,773)
Trade and other receivables, Current	32,102,797	26,276,061
Portfolio stratification [Member] | 1-30 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	32,460,011	26,520,834
Portfolio stratification [Member] | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(484,022)	(260,401)
Trade and other receivables, Current	7,445,293	7,805,361
Portfolio stratification [Member] | From 31 to 60 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	7,929,315	8,065,762
Portfolio stratification [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(587,103)
Trade and other receivables, Current	4,113,180
Portfolio stratification [Member] | 61 - 90 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	4,700,283
Portfolio stratification [Member] | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(677,088)	(419,163)
Trade and other receivables, Current	2,320,709	1,677,284
Portfolio stratification [Member] | From 91 to 120 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,997,797	2,096,447
Portfolio stratification [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(845,948)	(523,349)
Trade and other receivables, Current	1,908,418	877,649
Portfolio stratification [Member] | 121-150 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,754,366	1,400,998
Portfolio stratification [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(804,567)	(584,135)
Trade and other receivables, Current	2,233,138	1,361,556
Portfolio stratification [Member] | 151-180 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	3,037,705	1,945,691
Portfolio stratification [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(1,413,915)	(634,104)
Trade and other receivables, Current	1,253,184	894,385
Portfolio stratification [Member] | 181-210 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,667,099	1,528,489
Portfolio stratification [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(1,114,081)	(2,085,824)
Trade and other receivables, Current	1,396,602	777,678
Portfolio stratification [Member] | 211-250 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,510,683	2,863,502
Portfolio stratification [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(2,477,340)	(2,255,798)
Trade and other receivables, Current	2,512,403	3,640,925
Portfolio stratification [Member] | More than 251 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	4,989,743	5,896,723
Portfolio stratification [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(31,578,430)	(30,491,658)
Trade and other receivables, Current	10,668,714	11,328,175
Portfolio stratification [Member] | More than 365 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	42,247,144	41,819,833
Portfolio stratification [Member] | From 61 to 90 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts		(317,546)
Trade and other receivables, Current		3,629,840
Portfolio stratification [Member] | From 61 to 90 days [Member] | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		3,947,386
Portfolio stratification [Member] | Trade receivables, generation [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(2,914,767)	(1,527,684)
Portfolio stratification [Member] | Trade receivables, generation [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	142,968,302	165,128,644
Portfolio stratification [Member] | Trade receivables, generation [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	69,554,295	52,686,694
Trade receivables, Non-current	86,403,772	21,255
Portfolio stratification [Member] | Trade receivables, generation [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(10,907)	(21,736)
Portfolio stratification [Member] | Trade receivables, generation [Member] | Current Portfolio [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	142,968,302	165,128,644
Portfolio stratification [Member] | Trade receivables, generation [Member] | Current Portfolio [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	56,050,950	41,764,391
Portfolio stratification [Member] | Trade receivables, generation [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(260)
Portfolio stratification [Member] | Trade receivables, generation [Member] | 1-30 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,888,824	1,155,988
Portfolio stratification [Member] | Trade receivables, generation [Member] | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(200)
Portfolio stratification [Member] | Trade receivables, generation [Member] | From 31 to 60 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	224,770	1,453,308
Portfolio stratification [Member] | Trade receivables, generation [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(142)
Portfolio stratification [Member] | Trade receivables, generation [Member] | 61 - 90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	705,885
Portfolio stratification [Member] | Trade receivables, generation [Member] | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(103)
Portfolio stratification [Member] | Trade receivables, generation [Member] | From 91 to 120 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	404,757	203,487
Portfolio stratification [Member] | Trade receivables, generation [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(93)
Portfolio stratification [Member] | Trade receivables, generation [Member] | 121-150 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	116,371	7,836
Portfolio stratification [Member] | Trade receivables, generation [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(258)
Portfolio stratification [Member] | Trade receivables, generation [Member] | 151-180 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	787,421	39,787
Portfolio stratification [Member] | Trade receivables, generation [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(154)
Portfolio stratification [Member] | Trade receivables, generation [Member] | 181-210 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	187,920	483,751
Portfolio stratification [Member] | Trade receivables, generation [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(98)
Portfolio stratification [Member] | Trade receivables, generation [Member] | 211-250 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	592,987	153,929
Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(577)
Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 251 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,354,217	1,300,506
Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(2,901,975)	(1,505,948)
Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 365 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	6,240,193	5,415,159
Portfolio stratification [Member] | Trade receivables, generation [Member] | From 61 to 90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		708,552
Portfolio stratification [Member] | Trade receivables, distribution [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(40,573,334)	(37,598,751)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	141,740,569	92,576,381
Portfolio stratification [Member] | Trade receivables, distribution [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	145,777,617	146,661,898
Trade receivables, Non-current	105,563,157	2,025,590
Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(3,137,486)	(1,287,948)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member] | Unbilled services [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	141,740,569	92,576,381
Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	52,986,816	61,498,536
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(356,954)	(244,773)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 1-30 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	29,571,187	25,364,846
Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(483,822)	(260,401)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 31 to 60 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	7,704,545	6,612,454
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(586,961)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	3,994,398
Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(676,985)	(419,163)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 91 to 120 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,593,040	1,892,960
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(845,855)	(523,349)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 121-150 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,637,995	1,393,162
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(804,309)	(584,135)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 151-180 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,250,284	1,905,904
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(1,413,761)	(634,104)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 181-210 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,479,179	1,044,738
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(1,113,983)	(2,085,824)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | 211-250 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,917,696	2,709,573
Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(2,476,763)	(2,255,798)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 251 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	3,635,526	4,596,217
Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts	(28,676,455)	(28,985,710)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 365 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	36,006,951	36,404,674
Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 61 to 90 days [Member]
Trade And Other Receivables [Line Items]
Allowance for doubtful accounts		(317,546)
Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 61 to 90 days [Member] | Services billed [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		3,238,834
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	212,522,597	217,815,338
Trade receivables, Non-current	86,403,772	21,255
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	203,719,208	205,465,299
Trade receivables, Non-current	86,403,772
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	8,803,389	12,350,039
Trade receivables, Non-current		21,255
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	199,019,252	206,893,035
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | Current Portfolio [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	193,125,348	198,424,050
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | Current Portfolio [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	5,893,904	8,468,985
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,888,824	1,155,988
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 1-30 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,763,610	671,037
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 1-30 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	125,214	484,951
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		1,453,308
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 31 to 60 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	43,392	248,135
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 31 to 60 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	181,378	1,205,173
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	705,885
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 61 - 90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	551,201
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 61 - 90 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	154,684
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	404,757	203,487
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 91 to 120 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	290,439	224
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 91 to 120 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	114,318	203,263
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	116,371	7,836
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 121-150 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	13,672	7,274
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 121-150 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	102,699	562
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	787,421	39,787
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 151-180 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	574,794	39,001
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 151-180 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	212,627	786
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	187,920	483,751
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 181-210 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	78,802	43,681
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 181-210 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	109,118	440,070
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	592,987	153,929
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 211-250 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	487,520	56,046
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | 211-250 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	105,467	97,883
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,354,217	1,300,506
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 251 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	846,079	787,999
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 251 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	508,138	512,507
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	6,240,193	5,415,159
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 365 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	4,944,351	5,047,281
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | More than 365 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,295,842	367,878
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 61 to 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		708,552
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 61 to 90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		140,571
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, generation [Member] | From 61 to 90 days [Member] | Others [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		567,981
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	287,518,186	239,238,279
Trade receivables, Non-current	105,563,157	2,025,590
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	59,976,399	57,598,319
Trade receivables, Non-current	7,086	24,635
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	22,110,772	20,160,868
Trade receivables, Non-current	2,288,499
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	205,431,015	161,479,092
Trade receivables, Non-current	103,267,572	2,000,955
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	194,727,385	154,074,917
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	44,406,790	38,529,866
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	5,474,772	6,592,329
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | Current Portfolio [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	144,845,823	108,952,722
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	29,571,187	25,364,846
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 1-30 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	6,202,698	6,924,749
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 1-30 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,283,628	1,778,266
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 1-30 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	21,084,861	16,661,831
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	7,704,545	6,612,454
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 31 to 60 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,154,539	1,662,569
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 31 to 60 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,495,400	1,378,215
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 31 to 60 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	5,054,606	3,571,670
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	3,994,398
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	421,771
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,682,749
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,889,878
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,593,040	1,892,960
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 91 to 120 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	95,168	102,522
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 91 to 120 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	825,831	714,150
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 91 to 120 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,672,041	1,076,288
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,637,995	1,393,162
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 121-150 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	271,785	475
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 121-150 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	982,077	542,116
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 121-150 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,384,133	850,571
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,250,284	1,905,904
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 151-180 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	448,510	918,487
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 151-180 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	544,536	272,243
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 151-180 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,257,238	715,174
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,479,179	1,044,738
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 181-210 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	209,272	124,385
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 181-210 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,347,368	388,845
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 181-210 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	922,539	531,508
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	1,917,696	2,709,573
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 211-250 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	206,091	164,424
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 211-250 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	921,963	349,255
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | 211-250 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	789,642	2,195,894
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	3,635,526	4,596,217
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 251 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	775,558	1,619,025
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 251 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	762,746	1,217,928
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 251 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	2,097,222	1,759,264
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 365 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	36,006,951	36,404,674
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 365 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	5,784,217	6,326,539
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 365 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	5,789,702	6,341,106
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | More than 365 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross	$ 24,433,032	23,737,029
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 61 to 90 days [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		3,238,834
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 61 to 90 days [Member] | Large customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		1,225,278
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 61 to 90 days [Member] | Institutional customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		586,415
Non-renegotiated Portfolio [Member] | Portfolio stratification [Member] | Trade receivables, distribution [Member] | From 61 to 90 days [Member] | Mass-market Customers [Member]
Trade And Other Receivables [Line Items]
Trade receivables, gross		$ 1,427,141

Appendix 2.1 Additional Infor_2

Appendix 2.1 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Type of Portfolio (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Trade And Other Receivables [Line Items]
Trade and other current receivables	$ 511,455,330	$ 478,170,067
Non-current receivables	313,574,385	60,527,843
Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	566,919,977	527,649,947
Non-current receivables	313,574,385	60,527,843
Portfolio By Type | Gross Carrying Amount [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	500,040,783	457,053,617
Non-current receivables	191,966,929	2,046,845
Portfolio By Type | Gross Carrying Amount [Member] | 1-30 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	32,460,011	26,520,834
Portfolio By Type | Gross Carrying Amount [Member] | From 31 to 60 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	7,929,315	8,065,762
Portfolio By Type | Gross Carrying Amount [Member] | From 61 to 90 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		3,947,386
Portfolio By Type | Gross Carrying Amount [Member] | 61 - 90 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	4,700,283
Portfolio By Type | Gross Carrying Amount [Member] | From 91 to 120 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,997,797	2,096,447
Portfolio By Type | Gross Carrying Amount [Member] | 121-150 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,754,366	1,400,998
Portfolio By Type | Gross Carrying Amount [Member] | 151-180 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	3,037,705	1,945,691
Portfolio By Type | Gross Carrying Amount [Member] | 181-210 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,667,099	1,528,489
Portfolio By Type | Gross Carrying Amount [Member] | 211-250 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,510,683	2,863,502
Portfolio By Type | Gross Carrying Amount [Member] | More than 251 days [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	47,236,887	47,716,556
Portfolio By Type | Gross Carrying Amount [Member] | Current Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	393,746,637	360,967,952
Portfolio By Type | Trade receivables, generation [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,888,824	1,155,988
Portfolio By Type | Trade receivables, generation [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	224,770	1,453,308
Portfolio By Type | Trade receivables, generation [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		708,552
Portfolio By Type | Trade receivables, generation [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	705,885
Portfolio By Type | Trade receivables, generation [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	404,757	203,487
Portfolio By Type | Trade receivables, generation [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	116,371	7,836
Portfolio By Type | Trade receivables, generation [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	787,421	39,787
Portfolio By Type | Trade receivables, generation [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	187,920	483,751
Portfolio By Type | Trade receivables, generation [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	592,987	153,929
Portfolio By Type | Trade receivables, generation [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	7,594,410	6,715,665
Portfolio By Type | Trade receivables, generation [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	199,019,252	206,862,868
Portfolio By Type | Trade receivables, generation [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		30,167
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,763,610	671,037
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	43,392	248,135
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		140,571
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	551,201
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	290,439	224
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	13,672	7,274
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	574,794	39,001
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	78,802	43,681
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	487,520	56,046
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	5,790,430	5,835,279
Portfolio By Type | Trade receivables, generation [Member] | Large customers [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	193,125,348	198,424,050
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		484,951
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	125,214
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		1,205,173
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	181,378
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		567,981
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	154,684
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		203,263
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	114,318
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		562
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	102,699
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		786
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	212,627
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		440,070
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	109,118
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		97,883
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	105,467
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		880,386
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | More than 251 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	1,803,980
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		8,438,818
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	5,893,904
Portfolio By Type | Trade receivables, generation [Member] | Others [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		30,167
Portfolio By Type | Trade receivables, generation [Member] | Gross Carrying Amount [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	212,522,597	217,785,171
Non-current receivables	86,403,772
Portfolio By Type | Trade receivables, generation [Member] | Gross Carrying Amount [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		30,167
Non-current receivables		21,255
Portfolio By Type | Trade receivables, generation [Member] | Gross Carrying Amount [Member] | Large customers [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	203,719,208	205,465,298
Non-current receivables	86,403,772
Portfolio By Type | Trade receivables, generation [Member] | Gross Carrying Amount [Member] | Others [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		12,319,873
Portfolio By Type | Trade receivables, generation [Member] | Gross Carrying Amount [Member] | Others [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	8,803,389
Portfolio By Type | Trade receivables, generation [Member] | Gross Carrying Amount [Member] | Others [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		30,167
Non-current receivables		21,255
Portfolio By Type | Trade receivables, distribution [Member] | 1-30 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	27,982,486	24,738,695
Portfolio By Type | Trade receivables, distribution [Member] | 1-30 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	1,588,701	626,151
Portfolio By Type | Trade receivables, distribution [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	7,405,837	6,411,330
Portfolio By Type | Trade receivables, distribution [Member] | From 31 to 60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	298,708	201,124
Portfolio By Type | Trade receivables, distribution [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		3,118,630
Portfolio By Type | Trade receivables, distribution [Member] | From 61 to 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		120,204
Portfolio By Type | Trade receivables, distribution [Member] | 61 - 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	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 current receivables	336,938
Portfolio By Type | Trade receivables, distribution [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,448,204	1,803,734
Portfolio By Type | Trade receivables, distribution [Member] | From 91 to 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	144,836	89,226
Portfolio By Type | Trade receivables, distribution [Member] | 121-150 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,394,395	1,259,159
Portfolio By Type | Trade receivables, distribution [Member] | 121-150 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	243,600	134,003
Portfolio By Type | Trade receivables, distribution [Member] | 151-180 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,076,238	1,657,934
Portfolio By Type | Trade receivables, distribution [Member] | 151-180 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	174,046	247,970
Portfolio By Type | Trade receivables, distribution [Member] | 181-210 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	2,383,811	962,658
Portfolio By Type | Trade receivables, distribution [Member] | 181-210 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	95,368	82,080
Portfolio By Type | Trade receivables, distribution [Member] | 211-250 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	1,828,041	2,618,954
Portfolio By Type | Trade receivables, distribution [Member] | 211-250 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	89,655	90,619
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 current receivables	38,937,403	40,492,377
Portfolio By Type | Trade receivables, distribution [Member] | More than 251 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	705,074	508,514
Portfolio By Type | Trade receivables, distribution [Member] | Current Portfolio [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	184,125,135	146,934,065
Portfolio By Type | Trade receivables, distribution [Member] | Current Portfolio [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	10,602,250	7,140,852
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 current receivables	6,148,385	6,873,601
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 current receivables	54,312	51,148
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	1,130,250	1,662,570
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | From 31 to 60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	24,288
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		1,225,278
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 current receivables	421,771
Portfolio By Type | Trade receivables, distribution [Member] | Large customers [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	95,168	102,522
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 current receivables	271,785	475
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 current receivables	448,510	918,487
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 current receivables	209,272	124,385
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 current receivables	206,091	164,424
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 current receivables	4,961,884	7,898,789
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 current receivables	46,775	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 current receivables	44,252,680	38,401,049
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 current receivables	154,110	128,817
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 current receivables	1,509,946	1,768,167
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 current receivables	773,682	10,100
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	1,495,390	1,374,138
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | From 31 to 60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	9	4,076
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		586,415
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 current receivables	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 current receivables	3,077
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	825,831	714,141
Portfolio By Type | Trade receivables, distribution [Member] | Institutional customers [Member] | From 91 to 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		9
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 current receivables	960,063	542,116
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 current receivables	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 current receivables	544,525	161,478
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 current receivables	11	110,765
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 current receivables	1,347,368	388,845
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 current receivables	921,963	349,255
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 current receivables	7,931,774	7,558,209
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 current receivables	171,790	825
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 current receivables	3,024,981	6,542,678
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 current receivables	2,449,792	49,652
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 current receivables	20,324,155	16,096,927
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 current receivables	760,707	564,903
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | From 31 to 60 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	4,780,197	3,374,622
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | From 31 to 60 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	274,411	197,048
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | From 61 to 90 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		1,306,937
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | From 61 to 90 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables		120,204
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 current receivables	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 current receivables	333,861
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | From 91 to 120 days [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	1,527,205	987,071
Portfolio By Type | Trade receivables, distribution [Member] | Mass-market Customers [Member] | From 91 to 120 days [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	144,836	89,217
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 current receivables	1,162,547	716,568
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 current receivables	221,586	134,003
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 current receivables	1,083,203	577,969
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 current receivables	174,035	137,205
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 current receivables	827,171	449,428
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 current receivables	95,368	82,080
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 current receivables	699,987	2,105,275
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 current receivables	89,655	90,619
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 current receivables	26,043,745	25,035,379
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 current receivables	486,509	460,914
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 current receivables	136,847,474	101,990,338
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 current receivables	7,998,348	6,962,383
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Non-renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	273,239,010	229,997,536
Non-current receivables	85,518	116,198
Portfolio By Type | Trade receivables, distribution [Member] | Gross Carrying Amount [Member] | Renegotiated Portfolio [Member]
Trade And Other Receivables [Line Items]
Trade and other current receivables	14,279,176	9,240,743
Non-current receivables	105,477,639	1,909,392
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 current receivables	58,145,796	57,371,580
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 current receivables	279,485	226,740
Non-current receivables	7,086	24,635
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 current receivables	20,241,513	19,985,442
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 current receivables	3,420,375	175,427
Non-current receivables	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 current receivables	194,851,701	152,640,514
Non-current receivables	85,518	116,198
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 current receivables	10,579,316	8,838,576
Non-current receivables	$ 103,182,054	$ 1,884,757

Appendix 2.2 Additional Informa

Appendix 2.2 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 - Summary of Estimated Sales and Purchases of Energy and Capacity - Statement of Financial Position (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Current accounts receivable from related parties	$ 68,182,133	$ 54,171,060
Trade and other current receivables	511,455,330	478,170,067
Current accounts payable to related parties	159,809,887	157,936,325
Trade and other current payables	599,263,208	554,286,324
Energy and Capacity [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Trade and other current receivables	310,301,370	209,288,934
Total Estimated Assets	310,301,370	209,288,934
Trade and other current payables	125,130,599	106,633,306
Total Estimated Liabilities	125,130,599	106,633,306
Tolls [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Trade and other current receivables	13,929,209	46,336,070
Total Estimated Assets	13,929,209	46,336,070
Trade and other current payables	20,059,576	37,530,511
Total Estimated Liabilities	$ 20,059,576	$ 37,530,511

Appendix 2.2 Additional Infor_2

Appendix 2.2 Additional Information Oficio Circular (Official Bulletin) 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, 2019	Dec. 31, 2018
Energy and Capacity [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Energy Sales	$ 310,301,370	$ 209,288,934
Energy Purchases	125,130,599	106,633,306
Tolls [Member]
Disclosure Of Estimated Sales And Purchases Of Energy And Capacity [Line Items]
Energy Sales	13,929,209	46,336,070
Energy Purchases	$ 20,059,576	$ 37,530,511

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) - Details of Due Dates of Payments to Suppliers [Member] - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	$ 573,711,905	$ 468,236,126
Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	164,394,740	66,091,584
Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	220,585,729	249,320,045
Other
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	188,731,436	152,824,497
Up to 30 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	371,174,912	354,462,178
Up to 30 days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	101,666,302	45,355,153
Up to 30 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	148,397,518	230,133,777
Up to 30 days [Member] | Other
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	121,111,092	78,973,248
From 31 to 60 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	76,869,205	95,208,677
From 31 to 60 days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	5,579,618	4,284,025
From 31 to 60 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	71,069,622	19,179,502
From 31 to 60 days [Member] | Other
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	219,965	71,745,150
From 61 to 90 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	21,342,007	16,452,406
From 61 to 90 days [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	9,045,950	16,452,406
From 61 to 90 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	1,118,102
From 61 to 90 days [Member] | Other
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	11,177,955
From 121 to 365 days [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	48,102,870
From 121 to 365 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	56,222,911	2,112,865
More than 365 days [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	487	6,766
More than 365 days [Member] | Other
Details Of Due Dates Of Payments To Suppliers [Line Items]
Current Payments to suppliers	$ 56,222,424	$ 2,106,099

Appendix 3 Details of Due Dat_4

Appendix 3 Details of Due Dates of Payments to Suppliers - Summary of Suppliers (Detail) - CLP ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Details Of Due Dates Of Payments To Suppliers [Line Items]
Total trade and other current payables	$ 599,263,208	$ 554,286,324
Up-to-date Payments [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for energy purchase	232,095,186	155,123,059
Suppliers for fuel and gas purchases	55,179,023	39,787,839
Accounts payable for goods and services	183,849,044	155,061,232
Accounts payable for asset purchases	102,588,652	118,263,996
Total trade and other current payables	573,711,905	468,236,126
Up-to-date Payments [Member] | Goods [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for fuel and gas purchases		39,787,839
Accounts payable for goods and services	81,807,039
Accounts payable for asset purchases	82,587,701	26,303,745
Total trade and other current payables	164,394,740	66,091,584
Up-to-date Payments [Member] | Services [Member]
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for energy purchase	63,364,701	155,123,059
Suppliers for fuel and gas purchases	55,179,023
Accounts payable for goods and services	102,042,005	94,196,986
Total trade and other current payables	220,585,729	249,320,045
Up-to-date Payments [Member] | Other
Details Of Due Dates Of Payments To Suppliers [Line Items]
Suppliers for energy purchase	168,730,485
Accounts payable for goods and services		60,864,246
Accounts payable for asset purchases	20,000,951	91,960,251
Total trade and other current payables	$ 188,731,436	$ 152,824,497

Uncategorized Items - enic-2019

Label	Element	Value
Nonhedging Derivative Instrument [Member] | Hedging Instruments [Member]
Current Derivative Financial Assets	ifrs-full_CurrentDerivativeFinancialAssets	$ 41,023,000
Noncurrent Derivative Financial Assets	ifrs-full_NoncurrentDerivativeFinancialAssets	36,086,000
Current Derivative Financial Liabilities	ifrs-full_CurrentDerivativeFinancialLiabilities	207,957,000
Current Derivative Financial Liabilities	ifrs-full_CurrentDerivativeFinancialLiabilities	2,026,476,000
Noncurrent Derivative Financial Liabilities	ifrs-full_NoncurrentDerivativeFinancialLiabilities	159,630,000
Noncurrent Derivative Financial Liabilities	ifrs-full_NoncurrentDerivativeFinancialLiabilities	124,048,000
Deferred Tax Assets And Liabilities [Member] | Provision Contingencies Workers [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	5,989,000
Deferred Tax Assets And Liabilities [Member] | Provision Of Human Resources Accounts [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	6,497,206,000
Deferred Tax Assets And Liabilities [Member] | Provision For Civil Contingencies [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	3,762,772,000
Deferred Tax Assets And Liabilities [Member] | Provision For Doubtful Trade Accounts [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	13,238,237,000
Deferred Tax Assets And Liabilities [Member] | Dismantling Provision [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	17,411,395,000
Deferred Tax Assets And Liabilities [Member] | Taxes Relating To Hyperinflationary Effect [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	(213,442,000)
Deferred Tax Assets And Liabilities [Member] | Recoverable Taxes [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	10,491,314,000
Deferred Tax Assets And Liabilities [Member] | Taxes Relating To Equity Method Accounting [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	30,938,736,000
Deferred Tax Assets And Liabilities [Member] | Tax Relating To Capitalization Of Financial Expenses [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	(4,780,923,000)
Deferred Tax Assets And Liabilities [Member] | Other Temporary Differences [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	38,687,383,000
Deferred Tax Assets And Liabilities [Member] | Other Provisions [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	236,709,000
Deferred Tax Assets And Liabilities [Member] | Tax Relating To Accumulated Depreciation [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	(263,685,283,000)
Deferred Tax Assets And Liabilities [Member] | Tax Relating To Post Employment Benefit Obligations [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	5,971,995,000
Deferred Tax Assets And Liabilities [Member] | Other Taxes [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	2,251,698,000
Deferred Tax Assets And Liabilities [Member] | Tax Loss Carryforward [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	9,536,102,000
Deferred Tax Assets And Liabilities [Member] | Tax Relating To Provisions [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	41,152,308,000
Deferred Tax Assets And Liabilities [Member] | Deferred Tax Assets Liabilities Before Compensation [Member]
Deferred Tax Liability Asset	ifrs-full_DeferredTaxLiabilityAsset	$ (168,337,495,000)