3.22.0.1 html 8 156 1 true 8 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.proofPlus.com/role/DocumentInformation Document and Entity Information 1 false false R2.htm 000001 - Document - Risk/Return Summary {Unlabeled} - Fidelity Sustainable Multi-Asset Fund Sheet http://www.proofPlus.com/role/SummaryS000075297_NF0531FidelitySustainableMultiAssetFundAMCIZPRO01 Risk/Return Summary- Fidelity Sustainable Multi-Asset Fund 2 false false R3.htm 000002 - Schedule - Shareholder Fees {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/ShareholderFeesS000075297_NF0531FidelitySustainableMultiAssetFundAMCIZPRO01 Shareholder Fees {- Fidelity Sustainable Multi-Asset Fund} 3 false false R4.htm 000003 - Schedule - Annual Operating Expenses {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/OperatingExpensesS000075297_NF0531FidelitySustainableMultiAssetFundAMCIZPRO01 Annual Operating Expenses {- Fidelity Sustainable Multi-Asset Fund} 4 false false R5.htm 000004 - Schedule - Expense Example {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/ExpenseExampleS000075297_NF0531FidelitySustainableMultiAssetFundAMCIZPRO01 Expense Example {- Fidelity Sustainable Multi-Asset Fund} 5 false false R6.htm 000005 - Schedule - Expense Example, No Redemption {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/ExpenseExampleNoRedemptionS000075297_NF0531FidelitySustainableMultiAssetFundAMCIZPRO01 Expense Example, No Redemption {- Fidelity Sustainable Multi-Asset Fund} 6 false false R7.htm 000009 - Disclosure - Risk/Return Detail Data {Elements} - Fidelity Sustainable Multi-Asset Fund Sheet http://www.proofPlus.com/role/DisclosureDetailS000075297_NF0531FidelitySustainableMultiAssetFundAMCIZPRO01 Risk/Return Detail Data- Fidelity Sustainable Multi-Asset Fund 7 false false R8.htm 000010 - Document - Risk/Return Summary {Unlabeled} - Fidelity Sustainable Multi-Asset Fund Sheet http://www.proofPlus.com/role/SummaryS000075297_NF0531FidelitySustainableMultiAssetFundRetailPRO01 Risk/Return Summary- Fidelity Sustainable Multi-Asset Fund 8 false false R9.htm 000011 - Schedule - Shareholder Fees {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/ShareholderFeesS000075297_NF0531FidelitySustainableMultiAssetFundRetailPRO01 Shareholder Fees {- Fidelity Sustainable Multi-Asset Fund} 9 false false R10.htm 000012 - Schedule - Annual Operating Expenses {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/OperatingExpensesS000075297_NF0531FidelitySustainableMultiAssetFundRetailPRO01 Annual Operating Expenses {- Fidelity Sustainable Multi-Asset Fund} 10 false false R11.htm 000013 - Schedule - Expense Example {- Fidelity Sustainable Multi-Asset Fund} Sheet http://www.proofPlus.com/role/ExpenseExampleS000075297_NF0531FidelitySustainableMultiAssetFundRetailPRO01 Expense Example {- Fidelity Sustainable Multi-Asset Fund} 11 false false R12.htm 000018 - Disclosure - Risk/Return Detail Data {Elements} - Fidelity Sustainable Multi-Asset Fund Sheet http://www.proofPlus.com/role/DisclosureDetailS000075297_NF0531FidelitySustainableMultiAssetFundRetailPRO01 Risk/Return Detail Data- Fidelity Sustainable Multi-Asset Fund 12 false false R13.htm 040000 - Disclosure - Risk/Return Detail Data {Elements} Sheet http://xbrl.sec.gov/rr/role/RiskReturnDetailData Risk/Return Detail Data 13 false false All Reports Book All Reports filing694.htm d1.htm d10.htm d11.htm d12.htm d13.htm d18.htm d19.htm d2.htm d20.htm d21.htm d23.htm d28.htm d33.htm e1.htm e10.htm e13.htm e14.htm e9.htm exi.htm m1.htm m44.htm m45.htm m49.htm m50.htm m51.htm m52.htm m53.htm m54.htm n2.htm vav-20220209.xsd vav-20220209_cal.xml vav-20220209_def.xml vav-20220209_lab.xml vav-20220209_pre.xml fi_logo.jpg fipro_logo.jpg http://xbrl.sec.gov/dei/2020-01-31 http://xbrl.sec.gov/rr/2018-01-31 true true