| R$ thousand | ||
| On December 31 | ||
| 2017 | 2016 | |
| Cash and due from banks in domestic currency | 12,939,852 | 12,432,290 |
| Cash and due from banks in foreign currency | 2,088,498 | 2,085,650 |
| Compulsory deposits with the Central Bank (1) | 66,714,226 | 58,036,531 |
| Other | 375 | 180 |
| Total | 81,742,951 | 72,554,651 |
(1) Compulsory deposits with the Brazilian Central Bank refer to a minimum balance that financial institutions must maintain at the Brazilian Central Bank based on a percentage of deposits received from third parties.
| R$ thousand | ||
| On December 31 | ||
| 2017 | 2016 | |
| Cash and due from banks in domestic currency | 12,939,852 | 12,432,290 |
| Cash and due from banks in foreign currency | 2,088,498 | 2,085,650 |
| Interbank investments (1) | 141,025,717 | 166,712,307 |
| Other | 375 | 180 |
| Total | 156,054,442 | 181,230,427 |
(1) Refers to operations with maturity date on the effective date of investment equal to or less than 90 days and insignificant risk of change in the fair value. Of this amount, R$ 123,691,195 thousand (2016 - R$ 84,728,590 thousand) refers to reverse repurchase agreements registered as Financial assets pledged as collateral (Note 23) and R$ 17,334,522 thousand (2016 - R$ 81,983,717 thousand) as Loans and advances to banks.