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Equity - Earnings per share (Details) $ / shares in Units, $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) shares	Dec. 31, 2017 CLP ($) $ / shares shares	Dec. 31, 2016 CLP ($) $ / shares shares	Dec. 31, 2015 CLP ($) $ / shares shares
Basic and diluted earnings per share
Net profits attributable to ordinary equity holders of the Bank	$ 929,561	$ 572,080	$ 575,051	$ 609,903
Weighted average number of ordinary shares	99,444,132,192	99,444,132,192	99,444,132,192	99,444,132,192
Earnings per share | $ / shares		$ 5.75	$ 5.78	$ 6.13
Capitalised shares, included in EPS calculation	1,819,784,762	1,819,784,762	1,495,200,997	1,473,778,889

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- Definition

Number of shares capitalized included in calculation of EPS as shares outstanding

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The amount of earnings per share when the basic and diluted measurements are equal. [Refer: Basic earnings (loss) per share; Diluted earnings (loss) per share]

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The profit (loss) attributable to owners of the parent. [Refer: Profit (loss)]

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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