Financial Information as per operating segments (Details 3) - CLP ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement [Line Items]
Revenue	$ 1,857,593,678	$ 1,822,540,697	$ 1,783,282,337
Domestic sales [Member]
Statement [Line Items]
Revenue	1,729,519,439	1,702,109,548	1,664,613,889
Exports sales [Member]
Statement [Line Items]
Revenue	$ 128,074,239	$ 120,431,149	$ 118,668,448

The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.

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+ Details