Other Income/Expenses - Summary of Finance Income (Detail) - RUB (₽) ₽ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finance income [abstract]
Effect of restructuring of loans and finance leases	₽ 33,514	₽ 264	₽ 992
Remeasurement of fair value of financial instruments	320	197
Interest income from investments	207	158	177
Income from the discounting of financial instruments	15	14	7
Total	₽ 34,056	₽ 633	₽ 1,176

The amount of interest income on held-to-maturity investments. [Refer: Interest income; Held-to-maturity investments]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2021-01-01
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-02&anchor=para_112_c&doctype=Standard&book=b_pdf
-URIDate 2018-03-16

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