Financial Assets and Financial Liabilities - VTB Facilities - Additional Information (Parenthetical) (Detail) ₽ in Millions	12 Months Ended
Dec. 31, 2018 RUB (₽)
VTB facilities [member]
Disclosure of detailed information about borrowings [line items]
Cash flows arising from settlement of VTB credit facilities	₽ 5,000

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

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Period Type:	duration