Long-term and short-term loans issued - Movement in provision for impairment (Details) - RUB (₽) ₽ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Loans issued
Disclosure of detailed information about financial instruments
Beginning balance	₽ (116)	₽ (202)
(Charge)/reversal for the year	(219)	(53)
Utilisation	14	139
Ending balance	(321)	(116)
Installment card loans
Disclosure of detailed information about financial instruments
(Charge)/reversal for the year	(222)
Ending balance	(222)
Loans to legal entities
Disclosure of detailed information about financial instruments
Beginning balance	(113)	(199)
(Charge)/reversal for the year	3	(53)
Utilisation	14	139
Ending balance	(96)	(113)
Loans to financial institutions
Disclosure of detailed information about financial instruments
Beginning balance	(3)	(3)
Ending balance	₽ (3)	₽ (3)

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=b
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The decrease in an allowance account for credit losses of financial assets resulting from the utilisation of the allowance. [Refer: Allowance account for credit losses of financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=b
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) in an allowance account for credit losses of financial assets resulting from the impairment charge (reversal of impairment charge).

+ References

No definition available.

+ Details

Name:	qiwi_ChargeReversalAllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix:	qiwi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=qiwi_LoansIssuedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=qiwi_InstallmentCardLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_CorporateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=qiwi_LoansToFinancialInstitutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: