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Risk Management (Details 10) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 CLP ($) Number
USD [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Derivative Instruments (adjusted to market) | $ 14,360 |
Deposits | 1,400 |
Loans | 7,650 |
Financial investments | 0 |
Total Exposure | $ 23,410 |
Credit Risk [Member] | Derivatives Contracts [Member] | UK [Member] | USD [Member] | Santander UK [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Classification | Number | 1 |
Derivative Instruments (adjusted to market) | $ 24,000 |
Deposits | 2,000 |
Loans | 0 |
Financial investments | 0 |
Total Exposure | $ 26,000 |
Credit Risk [Member] | Derivatives Contracts [Member] | Mexico | USD [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Classification | Number | 2 |
Derivative Instruments (adjusted to market) | $ 9,420 |
Deposits | 40 |
Loans | 0 |
Financial investments | 0 |
Total Exposure | $ 9,460 |
Credit Risk [Member] | Derivatives Contracts [Member] | Mexico | USD [Member] | Banco Santander Mexico [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Classification | Number | 2 |
Derivative Instruments (adjusted to market) | $ 9,400 |
Deposits | 0 |
Loans | 0 |
Financial investments | 0 |
Total Exposure | $ 9,400 |
Credit Risk [Member] | Derivatives Contracts [Member] | Banco Santander España [Member] | Spain | USD [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Classification | Number | 1 | [1]
Derivative Instruments (adjusted to market) | $ 319,000 | [1]
Deposits | 54,800 | [1]
Loans | 400 | [1]
Financial investments | 0 | [1]
Total Exposure | $ 374,200 | [1]
[1] | The total amount of this exposure to derivative instruments must be compensated daily with collateral and, therefore, the net credit exposure is USD 0.

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