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Non-Controlling Interest (Details 1) - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of subsidiaries [line items] |  |  |
Assets | $ 2,228,682 | $ 258,617 | $ 246,559
Liabilities | 1,972,044 | 71,272 | 76,475
Capital | 239,990 | 170,296 | 142,079
Net income | 16,648 | 17,049 | 28,005
Santander Corredora de Seguros Limitada [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 82,918 | 77,764 | 76,177
Liabilities | 12,372 | 9,595 | 9,803
Capital | 68,159 | 66,374 | 64,937
Net income | 2,387 | 1,795 | 1,437
Santander Corredores de Bolsa Limitada [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 1,479,974 | 102,228 | 88,711
Liabilities | 1,434,843 | 57,999 | 45,855
Capital | 43,866 | 42,691 | 41,424
Net income | 1,265 | 1,538 | 1,432
Santander Asesorias Financieras Limitada [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 51,505 | 50,552 |
Liabilities | 51 | 71 |
Capital | 50,481 | 40,177 | 26,569
Net income | 973 | 10,304 |
Santander S.A. Sociedad Securitizadora [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 636 | 704 | 400
Liabilities | 88 | 66 | 50
Capital | 639 | 728 | 432
Net income | (91) | (90) | (82)
Santander Gestion de Recaudacion y Cobranzas Limitada [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 8,200 | 6,932 | 10,826
Liabilities | 3,392 | 3,155 | 7,901
Capital | 3,777 | 2,925 | 2,184
Net income | 1,031 | 852 | 741
Bansa Santander S.A. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 87,607 | 20,437 | 25,535
Liabilities | 68,042 | 386 | 8,134
Capital | 20,051 | 17,401 | 6,533
Net income | (486) | $ 2,650 | $ 10,868
Klare Corredora de Seguros S.A. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 8,303 |  |
Liabilities | 724 |  |
Capital | 8,586 |  |
Net income | (1,007) |  |
Santander Consumer Chile S.A. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 505,059 |  |
Liabilities | 452,528 |  |
Capital | 39,951 |  |
Net income | 12,580 |  |
Multiplica Spa [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Assets | 4,480 |  |
Liabilities | 4 |  |
Capital | 4,480 |  |
Net income | $ (4) |  |

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