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FINANCIAL RISK MANAGEMENT - Sensitivity analysis (Details) - Foreign exchange risk Rp in Billions	Dec. 31, 2018 IDR (Rp)
USD
FINANCIAL RISK MANAGEMENT
Increase in percent (as a percent)	1.00%
Equity change	Rp 12
Yen
FINANCIAL RISK MANAGEMENT
Increase in percent (as a percent)	5.00%
Equity change	Rp (30)

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- Definition

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- Definition

The increase (decrease) in equity as an result of a increase in a designated risk component that was reasonably possible at the end of the reporting period. Excludes defined benefit plan obligations.

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- Definition

The reasonably possible percentage of the increase in the designated risk component used to determine the value of the financial instruments. Excludes defined benefit plan obligations.

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