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CASH AND CASH EQUIVALENTS - Interest Rates on Cash and Cash Equivalents (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Rupiah | Minimum |  |
CASH AND CASH EQUIVALENTS |  |
Interest rate on time deposits | 1.25% | 2.00%
Rupiah | Maximum |  |
CASH AND CASH EQUIVALENTS |  |
Interest rate on time deposits | 7.75% | 8.25%
Foreign currency | Minimum |  |
CASH AND CASH EQUIVALENTS |  |
Interest rate on time deposits | 0.20% | 0.25%
Foreign currency | Maximum |  |
CASH AND CASH EQUIVALENTS |  |
Interest rate on time deposits | 1.75% | 2.80%

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