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PROPERTY AND EQUIPMENT - Cash generating units (Details) $ in Millions, Rp in Billions	12 Months Ended
	Dec. 31, 2017 IDR (Rp)	Dec. 31, 2016 IDR (Rp)	Dec. 31, 2015 IDR (Rp)	Dec. 31, 2014 IDR (Rp)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 IDR (Rp)
Cashgenerating units
Derecognized assets		Rp 114,230	Rp 103,455		$ 9,572	Rp 129,872
Gross or Cost
Cashgenerating units
Derecognized assets		248,099	232,673			267,251
Fixed wireless business
Cashgenerating units
Recoverable amount			549
Impairment loss				Rp 805
Discounted pre tax rate				13.50%
Technological and economic obsolescence rate				30.00%
Increase in technological and economic obsolescence rate				40.00%
Increase in impairment loss			Rp 70
Fixed wireless business | Gross or Cost
Cashgenerating units
Derecognized assets		5,203				Rp 3,193
Others
Cashgenerating units
Impairment loss	Rp 0	Rp 0

X

- Definition

The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

+ References

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The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]

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The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period.

+ References

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The higher of an asset’s (or cash-generating unit’s) fair value less costs of disposal and its value in use. [Refer: Cash-generating units [member]]

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