Financial Assets and Financial Liabilities - Summary of Future Minimum Lease Payments under Finance Leases Together with Present Value of Net Minimum Lease Payments (Detail) - RUB (₽)	Dec. 31, 2018	Dec. 31, 2017
Disclosure of finance lease and operating lease by lessee [line items]
Total minimum lease payment	₽ 9,738,000,000	₽ 11,000,000,000
Less amounts representing finance charges	(1,445,000,000)	(1,646,000,000)
Present value of finance lease liabilities	8,293,000,000	9,354,000,000
Total minimum lease payment	8,293,000,000	9,354,000,000
Current portion of finance lease liabilities	5,880,000,000	7,476,000,000
Non-current portion of finance lease liabilities	2,413,000,000	1,878,000,000
Payable in 1 year [member]
Disclosure of finance lease and operating lease by lessee [line items]
Total minimum lease payment	6,849,000,000	8,700,000,000
Present value of finance lease liabilities	5,880,000,000	7,476,000,000
Total minimum lease payment	5,880,000,000	7,476,000,000
Payable in 2 years [member]
Disclosure of finance lease and operating lease by lessee [line items]
Total minimum lease payment	908,000,000	633,000,000
Present value of finance lease liabilities	702,000,000	457,000,000
Total minimum lease payment	702,000,000	457,000,000
Payable in 3 years [member]
Disclosure of finance lease and operating lease by lessee [line items]
Total minimum lease payment	886,000,000	584,000,000
Present value of finance lease liabilities	751,000,000	458,000,000
Total minimum lease payment	751,000,000	458,000,000
Payable in 4 years [member]
Disclosure of finance lease and operating lease by lessee [line items]
Total minimum lease payment	745,000,000	557,000,000
Present value of finance lease liabilities	680,000,000	481,000,000
Total minimum lease payment	680,000,000	481,000,000
Payable in 5 years and thereafter [member]
Disclosure of finance lease and operating lease by lessee [line items]
Total minimum lease payment	350,000,000	526,000,000
Present value of finance lease liabilities	280,000,000	482,000,000
Total minimum lease payment	₽ 280,000,000	₽ 482,000,000

The amount of current finance lease liabilities. [Refer: Finance lease liabilities]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-02&anchor=para_55&doctype=Standard&book=b
-URIDate 2018-03-16

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No definition available.

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The amount representing the difference between the future minimum finance lease payments and their present value. Minimum lease payments are payments over the lease term that the lessee is or can be required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with: (a) for a lessee, any amounts guaranteed by the lessee or by a party related to the lessee; or (b) for a lessor, any residual value guaranteed to the lessor by: (i) the lessee; (ii) a party related to the lessee; or (iii) a third party unrelated to the lessor that is financially capable of discharging the obligations under the guarantee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 17
-IssueDate 2018-01-01
-Paragraph 31
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2018-03-02&anchor=para_31_b&doctype=Standard&book=b
-URIDate 2018-03-16

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The amount of payments over the finance lease term that the lessee is or can be required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with any amounts guaranteed by the lessee or by a party related to the lessee.

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The present value of minimum finance lease payments payable. [Refer: Minimum finance lease payments payable]

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The amount of non-current finance lease liabilities. [Refer: Finance lease liabilities]

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