Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

RUSSELL INVESTMENT FUNDS

Prospectus Date

rr_ProspectusDate

May 01, 2021

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

Russell Investment Funds Prospectus

RUSSELL INVESTMENT FUNDS

Supplement dated December 21, 2021 to
PROSPECTUS DATED MAY 1, 2021

As Supplemented June 8, 2021

I.  INDEX NAME CHANGES: The following name change is made to the Index listed in the Prospectus above:

Current Name	New Name
Bloomberg Barclays U.S. Aggregate Bond Index	Bloomberg U.S. Aggregate Bond Index

LifePoints Funds, Variable Target Portfolio Series Prospectus

RUSSELL INVESTMENT FUNDS

Supplement dated December 21, 2021 to

PROSPECTUS DATED May 1, 2021

As supplemented June 8, 2021 and

September 16, 2021

I.  INDEX NAME CHANGES: The following name change is made to the Index listed in the Prospectus above:

Current Name	New Name
Bloomberg Barclays U.S. Aggregate Bond Index	Bloomberg U.S. Aggregate Bond Index

Strategic Bond Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

Russell Investment Funds Prospectus

RUSSELL INVESTMENT FUNDS

Supplement dated December 21, 2021 to
PROSPECTUS DATED MAY 1, 2021

As Supplemented June 8, 2021

I.  INDEX NAME CHANGES: The following name change is made to the Index listed in the Prospectus above:

Current Name	New Name
Bloomberg Barclays U.S. Aggregate Bond Index	Bloomberg U.S. Aggregate Bond Index

Moderate Strategy Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

LifePoints Funds, Variable Target Portfolio Series Prospectus

RUSSELL INVESTMENT FUNDS

Supplement dated December 21, 2021 to

PROSPECTUS DATED May 1, 2021

As supplemented June 8, 2021 and

September 16, 2021

I.  INDEX NAME CHANGES: The following name change is made to the Index listed in the Prospectus above:

Current Name	New Name
Bloomberg Barclays U.S. Aggregate Bond Index	Bloomberg U.S. Aggregate Bond Index

Balanced Strategy Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

LifePoints Funds, Variable Target Portfolio Series Prospectus

RUSSELL INVESTMENT FUNDS

Supplement dated December 21, 2021 to

PROSPECTUS DATED May 1, 2021

As supplemented June 8, 2021 and

September 16, 2021

I.  INDEX NAME CHANGES: The following name change is made to the Index listed in the Prospectus above:

Current Name	New Name
Bloomberg Barclays U.S. Aggregate Bond Index	Bloomberg U.S. Aggregate Bond Index

Growth Strategy Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement to Prospectus [Text Block]

rr_SupplementToProspectusTextBlock

LifePoints Funds, Variable Target Portfolio Series Prospectus

RUSSELL INVESTMENT FUNDS

Supplement dated December 21, 2021 to

PROSPECTUS DATED May 1, 2021

As supplemented June 8, 2021 and

September 16, 2021

I.  INDEX NAME CHANGES: The following name change is made to the Index listed in the Prospectus above:

Current Name	New Name
Bloomberg Barclays U.S. Aggregate Bond Index	Bloomberg U.S. Aggregate Bond Index