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RISK MANAGEMENT (Details 14) - USD [Member] $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) Number
Disclosure of detailed information about financial instruments [line items] |
Derivative Instruments (adjusted to market) | $ 401
Deposits | 239
Loans | 25,459
Financial investments | 0
Total Exposure | $ 26,099
Credit Risk [Member] | Foreign Derivative Contracts [Member] | Banco Santander Spain [Member] | Spain |
Disclosure of detailed information about financial instruments [line items] |
Classification | Number | 1
Derivative Instruments (adjusted to market) | $ 974
Deposits | 11,826
Loans |
Financial investments |
Total Exposure | $ 12,800

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