Investment Risks	Oct. 30, 2025
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | Risk Lose Money [Member]
Prospectus Line Items
Risk [Text Block]	You could lose money by investing in the fund.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | Risk Not Insured Depository Institution [Member]
Prospectus Line Items
Risk [Text Block]	An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | ForeignAndEmergingMarketsRiskMember
Prospectus Line Items
Risk [Text Block]	Foreign and Emerging Markets Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. Foreign exchange rates also can be extremely volatile.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | LeverageRiskMember
Prospectus Line Items
Risk [Text Block]	Leverage Risk. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | InvestingInOtherFundsMember
Prospectus Line Items
Risk [Text Block]	Investing in Other Funds. The fund bears all risks of investment strategies employed by the underlying funds, including the risk that the underlying funds will not meet their investment objectives.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | AssetAllocationRiskMember
Prospectus Line Items
Risk [Text Block]	Asset Allocation Risk. The fund is subject to risks resulting from the Adviser's asset allocation decisions. The selection of underlying funds and the allocation of the fund's assets among various asset classes could cause the fund to lose value or its results to lag relevant benchmarks or other funds with similar objectives.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | IssuerSpecificChangesMember
Prospectus Line Items
Risk [Text Block]	Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. A decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security can cause the price of a security to decrease.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | StockMarketVolatilityMember
Prospectus Line Items
Risk [Text Block]	Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | CorrelationToIndexMember
Prospectus Line Items
Risk [Text Block]	Correlation to Index. The performance of an underlying index fund and its index may vary somewhat due to factors such as fees and expenses of the underlying fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on an underlying fund and its shareholders.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | InterestRateChangesMember
Prospectus Line Items
Risk [Text Block]	Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | InvestingInEtfsMember
Prospectus Line Items
Risk [Text Block]	Investing in ETFs. ETFs may trade in the secondary market at prices below the value of their underlying portfolios and may not be liquid. ETFs that track an index are subject to tracking error and may be unable to sell poorly performing assets that are included in their index or other benchmark.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | PassiveManagementRiskMember
Prospectus Line Items
Risk [Text Block]	Passive Management Risk. Some of the underlying funds in which the fund invests are managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of an underlying fund's index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the performance of these underlying funds could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. An underlying index fund may be concentrated to approximately the same extent that its index concentrates in the securities of issuers in a particular industry or group of industries.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | SustainabilityRiskMember
Prospectus Line Items
Risk [Text Block]	Sustainability Risk. Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | PrepaymentMember
Prospectus Line Items
Risk [Text Block]	Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.
FidelitySustainableMulti-AssetFund-RetailPRO | Fidelity Sustainable Multi-Asset Fund | GeographicExposureToEuropeMember
Prospectus Line Items
Risk [Text Block]	Geographic Exposure to Europe. Because an underlying fund invests a meaningful portion of its assets in Europe, the underlying fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | Risk Lose Money [Member]
Prospectus Line Items
Risk [Text Block]	You could lose money by investing in the fund.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | Risk Not Insured Depository Institution [Member]
Prospectus Line Items
Risk [Text Block]	An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | ForeignAndEmergingMarketsRiskMember
Prospectus Line Items
Risk [Text Block]	Foreign and Emerging Markets Risk. Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. Foreign exchange rates also can be extremely volatile.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | LeverageRiskMember
Prospectus Line Items
Risk [Text Block]	Leverage Risk. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | InvestingInOtherFundsMember
Prospectus Line Items
Risk [Text Block]	Investing in Other Funds. The fund bears all risks of investment strategies employed by the underlying funds, including the risk that the underlying funds will not meet their investment objectives.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | AssetAllocationRiskMember
Prospectus Line Items
Risk [Text Block]	Asset Allocation Risk. The fund is subject to risks resulting from the Adviser's asset allocation decisions. The selection of underlying funds and the allocation of the fund's assets among various asset classes could cause the fund to lose value or its results to lag relevant benchmarks or other funds with similar objectives.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | IssuerSpecificChangesMember
Prospectus Line Items
Risk [Text Block]	Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. A decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security can cause the price of a security to decrease.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | StockMarketVolatilityMember
Prospectus Line Items
Risk [Text Block]	Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | CorrelationToIndexMember
Prospectus Line Items
Risk [Text Block]	Correlation to Index. The performance of an underlying index fund and its index may vary somewhat due to factors such as fees and expenses of the underlying fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on an underlying fund and its shareholders.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | InterestRateChangesMember
Prospectus Line Items
Risk [Text Block]	Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | InvestingInEtfsMember
Prospectus Line Items
Risk [Text Block]	Investing in ETFs. ETFs may trade in the secondary market at prices below the value of their underlying portfolios and may not be liquid. ETFs that track an index are subject to tracking error and may be unable to sell poorly performing assets that are included in their index or other benchmark.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | PassiveManagementRiskMember
Prospectus Line Items
Risk [Text Block]	Passive Management Risk. Some of the underlying funds in which the fund invests are managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of an underlying fund's index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the performance of these underlying funds could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. An underlying index fund may be concentrated to approximately the same extent that its index concentrates in the securities of issuers in a particular industry or group of industries.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | SustainabilityRiskMember
Prospectus Line Items
Risk [Text Block]	Sustainability Risk. Application of Fidelity Management & Research Company LLC's (FMR) (the Adviser) ESG ratings process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG ratings process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | PrepaymentMember
Prospectus Line Items
Risk [Text Block]	Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.
FidelitySustainableMulti-AssetFund-AMCIPRO | Fidelity Sustainable Multi-Asset Fund | GeographicExposureToEuropeMember
Prospectus Line Items
Risk [Text Block]	Geographic Exposure to Europe. Because an underlying fund invests a meaningful portion of its assets in Europe, the underlying fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds.
Document Type	497