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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType Other
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2012
Registrant Name dei_EntityRegistrantName OPPENHEIMER VARIABLE ACCOUNT FUNDS
Central Index Key dei_EntityCentralIndexKey 0000752737
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate May 09, 2013
Document Effective Date dei_DocumentEffectiveDate May 09, 2013
Prospectus Date rr_ProspectusDate Apr. 30, 2013
Supplement [Text Block] oppenheimer_SupplementTextBlock

OPPENHEIMER GLOBAL STRATEGIC INCOME FUND/VA
Supplement dated May 9, 2013 to the
Prospectus dated April 30, 2013

This supplement amends the Prospectus of Oppenheimer Global Strategic Income Fund/VA (the "Fund") dated April 30, 2013, and is in addition to any other supplements.
(Oppenheimer Global Strategic Income Fund/VA)
  
Risk/Return: rr_RiskReturnAbstract  
Expense Heading Supplement [Text Block] oppenheimer_SupplementTextBlock01

The Expense Example table on Page 3 of the Prospectus is deleted in its entirety and replaced by the following:
(Oppenheimer Global Strategic Income Fund/VA) | Non-Service Class
  
Risk/Return: rr_RiskReturnAbstract  
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 74
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 244
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 429
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 964
(Oppenheimer Global Strategic Income Fund/VA) | Service Class
  
Risk/Return: rr_RiskReturnAbstract  
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 99
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 323
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 566
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,260