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EVENTS AFTER THE REPORTING PERIOD (Details)
$ / shares in Units, ₴ in Millions, $ in Millions
12 Months Ended
Mar. 13, 2018
$ / shares
Feb. 22, 2018
$ / shares
Feb. 13, 2018
USD ($)
item
Sep. 06, 2017
$ / shares
Apr. 12, 2017
$ / shares
Dec. 07, 2016
$ / shares
Dec. 07, 2015
$ / shares
Dec. 31, 2017
item
Mar. 06, 2018
UAH (₴)
item
Mar. 06, 2018
USD ($)
item
Jan. 31, 2018
UAH (₴)
item
Jan. 31, 2018
USD ($)
item
Disclosure of non-adjusting events after reporting period                        
Dividend (per share) | $ / shares       $ 0.11 $ 0.195 $ 0.035 $ 0.035          
Maximum                        
Disclosure of non-adjusting events after reporting period                        
Tax rate withholdings on dividend paid to company's ADS depositary (in percent)               15.00%        
Dividend Approval by Supervisory Board                        
Disclosure of non-adjusting events after reporting period                        
Final dividend declared per share | $ / shares   $ 0.17                    
Aggregate dividend declared per share | $ / shares   $ 28                    
Tax rate withholdings on dividend paid to company's ADS depositary (in percent) 15.00%                      
Dividend (per share) | $ / shares $ 0.17                      
JSC "Kyivstar" | Licenses to provide nationwide 4G/LTE services                        
Disclosure of non-adjusting events after reporting period                        
Number of 4G/LTE licenses secured                     1 1
Total licenses                     3 3
Frequency bands (in MHz)                     2,600 2,600
License fee                     ₴ 900 $ 32.0
JSC "Kyivstar" | Acquisition of additional spectrum and 4G/LTE License                        
Disclosure of non-adjusting events after reporting period                        
Frequency bands (in MHz)                 1,800 1,800    
25 MHz paired spectrum cost                 ₴ 1,325 $ 47.0    
Two lots of 5 MHz paired spectrum cost                 ₴ 1,512 $ 54.0    
Banglalink Digital Communications Limited | Acquisition of additional spectrum and 4G/LTE License                        
Disclosure of non-adjusting events after reporting period                        
Spectrum cost | $     $ 308.6                  
Percentage of upfront payment     60.00%                  
Upfront payment term     30 days                  
Percentage of remaining payment     40.00%                  
Remaining payment term     4 years                  
Amount payable to convert into technology neutral spectrum | $     $ 35.0                  
License fee | $     $ 1.2                  
Banglalink Digital Communications Limited | Acquisition of additional spectrum and 4G/LTE License | Minimum                        
Disclosure of non-adjusting events after reporting period                        
Frequency bands (in MHz)     1,800         900        
Banglalink Digital Communications Limited | Acquisition of additional spectrum and 4G/LTE License | Maximum                        
Disclosure of non-adjusting events after reporting period                        
Frequency bands (in MHz)     2,100         1,800