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FINANCIAL RISK MANAGEMENT - Credit risk (Details) - IDR (Rp) Rp in Billions	Dec. 31, 2018	Dec. 31, 2017
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	Rp 1,850
Maximum share of total receivables held by any client (as a percent)	5.25%
Credit risk
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	Rp 30,680	Rp 37,065
Credit risk | Cash and cash equivalents
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	17,435	25,145
Credit risk | Trade and other receivables, net
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	9,928	9,564
Credit risk | Contract assets, net
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	1,560
Credit risk | Other current financial asset
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	1,314	2,173
Credit risk | Other non-current assets
FINANCIAL RISK MANAGEMENT
Maximum credit exposure	Rp 443	Rp 183

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- Definition

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- Definition

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

+ References

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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The maximum percentage that any customer's accounts receivable balance comprises of the total receivables balance as of the balance sheet date.

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