Fidelity Advisor Worldwide Fund (FWAFX) N-CSR 20 Dec 24 Certified annual shareholder report (management investment company) Financial data

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
	Oct. 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Fidelity Investment Trust
Entity Central Index Key	0000744822
Entity Investment Company Type	N-1A
Document Period End Date	Oct. 31, 2024

Shareholder Report

Shareholder Report	12 Months Ended
	Oct. 31, 2024 USD ($) shares
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Fidelity Investment Trust
Entity Central Index Key	0000744822
Entity Investment Company Type	N-1A
Document Period End Date	Oct. 31, 2024
Fidelity Advisor Sustainable International Equity Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable International Equity Fund
Class Name	Fidelity Advisor® Sustainable International Equity Fund Class A
Trading Symbol	FSQAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.30 %
Expenses Paid, Amount	$ 147
Expense Ratio, Percent	1.30%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B26">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $6,786 $7,426 MSCI EAFE ESG Leaders $10,000 $7,669 $8,792 MSCI EAFE Index $10,000 $7,820 $8,966   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   18.48% -2.49% Class A (without 5.75% sales charge) 25.71% -0.35% MSCI EAFE ESG Leaders 22.13% 2.65% MSCI EAFE Index 23.25% 3.74% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 10,747,030
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 67,920
Investment Company Portfolio Turnover	50%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 50 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.6   Industrials 21.7   Health Care 13.0   Consumer Discretionary 11.0   Information Technology 9.0   Materials 6.5   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.1     Common Stocks 97.5 Short-Term Investments and Net Other Assets (Liabilities) 2.5 ASSET ALLOCATION (% of Fund's net assets) Japan 21.7 United Kingdom 14.1 United States 10.5 France 9.8 Netherlands 8.4 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.7 Others 16.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 2.9   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.5   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B41">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B42">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B43">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity SAI Sustainable International Equity Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® SAI Sustainable International Equity Fund
Class Name	Fidelity®  SAI Sustainable International Equity Fund
Trading Symbol	FSSEX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® SAI Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-3455 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-3455
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® $ 0.75 %
Expenses Paid, Amount	$ 84
Expense Ratio, Percent	0.75%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B60">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE April 14, 2022 through October 31, 2024. Initial investment of $10,000. Fidelity® SAI Sustainable International Equity Fund $10,000 $8,060 $8,875 MSCI EAFE ESG Leaders $10,000 $8,296 $9,511 MSCI EAFE Index $10,000 $8,407 $9,638   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® SAI Sustainable International Equity Fund 25.43% 4.30% MSCI EAFE ESG Leaders 22.13% 6.05% MSCI EAFE Index 23.25% 6.98% A   From April 14, 2022 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Apr. 14, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 59,251,472
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 229,265
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 45 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.4   Industrials 21.6   Health Care 12.8   Consumer Discretionary 10.9   Information Technology 8.7   Materials 6.6   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.2     Common Stocks 96.8 Short-Term Investments and Net Other Assets (Liabilities) 3.2 ASSET ALLOCATION (% of Fund's net assets) Japan 21.6 United Kingdom 14.0 United States 11.2 France 9.7 Netherlands 8.3 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.6 Others 16.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 3.0   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.4   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-3455 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's contractual management fee was reduced during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's contractual management fee was reduced during the reporting period.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-3455 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-3455</span>" id="sjs-B75">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-3455&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B76">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B77">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity SAI International SMA Completion Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® SAI International SMA Completion Fund
Class Name	Fidelity® SAI International SMA Completion Fund
Trading Symbol	FISZX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® SAI International SMA Completion Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-3455 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-3455
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® SAI International SMA Completion Fund $ A 0.00 % B A Amount represents less than $.50 B Amount represents less than 0.005%
Expenses Paid, Amount	$ 0
Expense Ratio, Percent	0%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B94">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE April 11, 2019 through October 31, 2024. Initial investment of $10,000. Fidelity® SAI International SMA Completion Fund $10,000 $10,470 $12,415 $15,646 $10,313 $10,994 MSCI EAFE Index $10,000 $10,437 $9,739 $13,094 $10,103 $11,583   2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund A Fidelity® SAI International SMA Completion Fund 22.95% 5.24% 5.57% MSCI EAFE Index 23.25% 6.46% 6.61% A   From April 11, 2019 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Apr. 11, 2019
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 808,201,287
Holdings Count | shares	52
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 52 Total Advisory Fee $ Portfolio Turnover 33 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Industrials 33.5   Financials 20.1   Information Technology 13.3   Consumer Discretionary 7.1   Materials 6.4   Health Care 5.4   Energy 3.8   Consumer Staples 3.5   Communication Services 1.8   Real Estate 0.8     Common Stocks 95.7 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) Japan 24.7 Sweden 10.7 Canada 9.9 United States 8.8 United Kingdom 5.7 India 5.3 Germany 5.1 Australia 4.2 Switzerland 3.9 Others 21.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Mitsubishi Heavy Industries Ltd 6.0   Investor AB B Shares 5.0   ITOCHU Corp 4.7   Constellation Software Inc/Canada 4.4   Indutrade AB 4.1   Schneider Electric SE 3.4   CaixaBank SA 3.3   Keyence Corp 3.2   Hannover Rueck SE 3.1   Kingspan Group PLC 2.9     40.1
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-3455 or by sending an e-mail to fidfunddocuments fidelity.com . The fund changed its classification from non-diversified to diversified and modified its principal investment strategies and risks to reflect the change during the reporting period.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-3455 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-3455</span>" id="sjs-B108">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-3455&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B109">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B110">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series Canada Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Canada Fund
Class Name	Fidelity® Series Canada Fund
Trading Symbol	FCNSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Canada Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Canada Fund $ A 0.00 % B A Amount represents less than $.50 B Amount represents less than 0.005%
Expenses Paid, Amount	$ 0
Expense Ratio, Percent	0%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B126">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE August 15, 2017 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Canada Fund $10,000 $10,660 $10,100 $11,273 $10,346 $15,974 $14,784 $15,011 MSCI Canada Index $10,000 $10,602 $10,012 $11,195 $10,553 $15,773 $13,617 $13,495   2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund A Fidelity® Series Canada Fund 27.38% 11.15% 9.40% MSCI Canada Index 31.60% 9.67% 8.28% A   From August 15, 2017 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Aug. 15, 2017
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 5,728,681,179
Holdings Count | shares	63
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	9%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 63 Total Advisory Fee $ Portfolio Turnover 9 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 30.3   Energy 17.9   Industrials 12.3   Materials 10.7   Information Technology 10.3   Consumer Staples 8.7   Consumer Discretionary 6.7   Communication Services 2.1   Health Care 0.6     Common Stocks 99.6 Bonds 0.1 Preferred Stocks 0.0 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets) Canada 94.2 Brazil 2.5 United States 2.5 Chile 0.8 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Royal Bank of Canada 5.6   Canadian Pacific Kansas City Ltd 5.5   Bank of Montreal 5.3   Canadian Natural Resources Ltd 5.2   Alimentation Couche-Tard Inc 5.1   Constellation Software Inc/Canada 4.8   Shopify Inc Class A 3.8   Toronto-Dominion Bank/The 3.8   Franco-Nevada Corp 3.8   Suncor Energy Inc 3.6     46.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: Operating expenses
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: Operating expenses
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B141">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B142">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Enduring Opportunities Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Enduring Opportunities Fund
Class Name	Fidelity® Enduring Opportunities Fund
Trading Symbol	FEOPX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Enduring Opportunities Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enduring Opportunities Fund $ 0.95 %
Expenses Paid, Amount	$ 112
Expense Ratio, Percent	0.95%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B159">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE November 5, 2019 through October 31, 2024. Initial investment of $10,000. Fidelity® Enduring Opportunities Fund $10,000 $11,922 $16,706 $11,252 $12,373 $16,715 MSCI ACWI (All Country World Index) Index $10,000 $10,388 $14,305 $11,489 $12,742 $16,976   2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Enduring Opportunities Fund 35.09% 10.84% MSCI ACWI (All Country World Index) Index 33.23% 11.18% A   From November 5, 2019 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Nov. 05, 2019
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 14,559,977
Holdings Count | shares	283
Advisory Fees Paid, Amount	$ 64,944
Investment Company Portfolio Turnover	18%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 283 Total Advisory Fee $ Portfolio Turnover 18 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Information Technology 22.6   Consumer Discretionary 16.2   Industrials 14.8   Financials 11.9   Health Care 9.0   Communication Services 8.8   Consumer Staples 5.0   Real Estate 4.7   Materials 3.5   Energy 1.8   Utilities 0.8     Common Stocks 99.1 Short-Term Investments and Net Other Assets (Liabilities) 0.9 ASSET ALLOCATION (% of Fund's net assets) United States 66.0 Japan 5.2 China 2.8 United Kingdom 2.7 India 2.6 Canada 2.4 Sweden 2.0 Italy 1.8 Taiwan 1.7 Others 12.8 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 4.9   Microsoft Corp 4.2   Amazon.com Inc 2.6   Meta Platforms Inc Class A 2.1   Alphabet Inc Class A 1.6   Alphabet Inc Class C 1.4   Taiwan Semiconductor Manufacturing Co Ltd 1.4   JPMorgan Chase & Co 1.2   Eli Lilly & Co 1.1   UnitedHealth Group Inc 0.9     21.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B174">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B175">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B176">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable Emerging Markets Equity Fund
Class Name	Fidelity Advisor® Sustainable Emerging Markets Equity Fund Class M
Trading Symbol	FSYNX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.75 %
Expenses Paid, Amount	$ 197
Expense Ratio, Percent	1.75%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B193">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $6,311 $7,110 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $6,534 $7,249 MSCI Emerging Markets Index $10,000 $6,946 $7,699   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   20.80% -4.19% Class M (without 3.50% sales charge) 25.18% -2.93% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% -2.57% MSCI Emerging Markets Index 25.33% -1.30% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,416,219
Holdings Count | shares	119
Advisory Fees Paid, Amount	$ 47,275
Investment Company Portfolio Turnover	108%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 119 Total Advisory Fee $ Portfolio Turnover 108 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.8   Information Technology 24.6   Consumer Discretionary 17.3   Communication Services 9.1   Industrials 5.1   Health Care 4.4   Materials 3.7   Consumer Staples 3.0   Energy 2.2   Real Estate 1.2   Utilities 0.7     Common Stocks 96.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets) China 30.9 Taiwan 15.9 India 13.3 Korea (South) 9.7 Brazil 6.3 South Africa 5.2 United States 3.9 Mexico 3.5 Indonesia 2.3 Others 9.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.2   Alibaba Group Holding Ltd 4.2   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 1.9   SK Hynix Inc 1.8   Bharti Airtel Ltd 1.7   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7     35.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B208">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B209">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B210">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable Emerging Markets Equity Fund
Class Name	Fidelity Advisor® Sustainable Emerging Markets Equity Fund Class A
Trading Symbol	FSWAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.50 %
Expenses Paid, Amount	$ 169
Expense Ratio, Percent	1.50%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B227">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $6,173 $6,972 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $6,534 $7,249 MSCI Emerging Markets Index $10,000 $6,946 $7,699   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   18.36% -4.76% Class A (without 5.75% sales charge) 25.58% -2.67% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% -2.57% MSCI Emerging Markets Index 25.33% -1.30% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,416,219
Holdings Count | shares	119
Advisory Fees Paid, Amount	$ 47,275
Investment Company Portfolio Turnover	108%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 119 Total Advisory Fee $ Portfolio Turnover 108 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.8   Information Technology 24.6   Consumer Discretionary 17.3   Communication Services 9.1   Industrials 5.1   Health Care 4.4   Materials 3.7   Consumer Staples 3.0   Energy 2.2   Real Estate 1.2   Utilities 0.7     Common Stocks 96.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets) China 30.9 Taiwan 15.9 India 13.3 Korea (South) 9.7 Brazil 6.3 South Africa 5.2 United States 3.9 Mexico 3.5 Indonesia 2.3 Others 9.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.2   Alibaba Group Holding Ltd 4.2   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 1.9   SK Hynix Inc 1.8   Bharti Airtel Ltd 1.7   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7     35.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B242">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B243">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B244">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Commodity Stock Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity® Global Commodity Stock Fund
Class Name	Fidelity Advisor® Global Commodity Stock Fund Class I
Trading Symbol	FFGIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Global Commodity Stock Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 0.90 %
Expenses Paid, Amount	$ 95
Expense Ratio, Percent	0.90%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B261">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Class I $10,000 $7,707 $8,449 $10,054 $10,084 $10,078 $9,261 $14,259 $17,619 $15,958 $17,945 MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index $10,000 $7,702 $8,581 $10,342 $10,510 $10,163 $8,673 $13,570 $15,259 $14,850 $15,721 MSCI ACWI (All Country World Index) Index $10,000 $10,035 $10,284 $12,721 $12,703 $14,362 $15,121 $20,822 $16,723 $18,547 $24,710   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Class I 12.45% 12.23% 6.02% MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index 5.86% 9.12% 4.63% MSCI ACWI (All Country World Index) Index 33.23% 11.46% 9.47%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 929,592,306
Holdings Count | shares	61
Advisory Fees Paid, Amount	$ 7,667,954
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 61 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 35.2   Metals & Mining 30.1   Food Products 10.3   Paper & Forest Products 10.2   Energy Equipment & Services 6.0   Chemicals 4.9   Containers & Packaging 1.6   Construction Materials 0.6   Construction & Engineering 0.2   Others 0.1       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 46.1 Canada 24.7 Brazil 7.1 South Africa 6.2 Finland 4.4 Zambia 2.7 Australia 2.6 Norway 2.3 India 2.0 Others 1.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 7.0   Shell PLC 5.8   Archer-Daniels-Midland Co 4.9   Wheaton Precious Metals Corp 4.5   Teck Resources Ltd Class B 4.2   Cenovus Energy Inc 3.9   Energy Transfer LP 3.4   JBS S/A 3.3   UPM-Kymmene Oyj 3.2   Antero Resources Corp 3.2     43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee. The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Adviser [Text Block]	The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B276">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B277">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B278">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Global Commodity Stock Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Global Commodity Stock Fund
Class Name	Fidelity® Global Commodity Stock Fund
Trading Symbol	FFGCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Global Commodity Stock Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Global Commodity Stock Fund $ 0.89 %
Expenses Paid, Amount	$ 94
Expense Ratio, Percent	0.89%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B295">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Fidelity® Global Commodity Stock Fund $10,000 $7,703 $8,444 $10,018 $10,042 $10,018 $9,200 $14,164 $17,502 $15,846 $17,813 MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index $10,000 $7,702 $8,581 $10,342 $10,510 $10,163 $8,673 $13,570 $15,259 $14,850 $15,721 MSCI ACWI (All Country World Index) Index $10,000 $10,035 $10,284 $12,721 $12,703 $14,362 $15,121 $20,822 $16,723 $18,547 $24,710   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Global Commodity Stock Fund 12.42% 12.20% 5.94% MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index 5.86% 9.12% 4.63% MSCI ACWI (All Country World Index) Index 33.23% 11.46% 9.47%   Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 929,592,306
Holdings Count | shares	61
Advisory Fees Paid, Amount	$ 7,667,954
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 61 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 35.2   Metals & Mining 30.1   Food Products 10.3   Paper & Forest Products 10.2   Energy Equipment & Services 6.0   Chemicals 4.9   Containers & Packaging 1.6   Construction Materials 0.6   Construction & Engineering 0.2   Others 0.1       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 46.1 Canada 24.7 Brazil 7.1 South Africa 6.2 Finland 4.4 Zambia 2.7 Australia 2.6 Norway 2.3 India 2.0 Others 1.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 7.0   Shell PLC 5.8   Archer-Daniels-Midland Co 4.9   Wheaton Precious Metals Corp 4.5   Teck Resources Ltd Class B 4.2   Cenovus Energy Inc 3.9   Energy Transfer LP 3.4   JBS S/A 3.3   UPM-Kymmene Oyj 3.2   Antero Resources Corp 3.2     43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: Management fee Operating expenses Expense reductions The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee. The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: Management fee Operating expenses Expense reductions The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Adviser [Text Block]	The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B310">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B311">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B312">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series Sustainable Non-U.S. Developed Markets Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Sustainable Non-U.S. Developed Markets Fund
Class Name	Fidelity® Series Sustainable Non-U.S. Developed Markets Fund
Trading Symbol	FNDMX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Sustainable Non-U.S. Developed Markets Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Sustainable Non-U.S. Developed Markets Fund $ 0.01 %
Expenses Paid, Amount	$ 2
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social, and governance (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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B327">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Sustainable Non-U.S. Developed Markets Fund $10,000 $9,340 MSCI World ex USA ESG Focus Index $10,000 $9,188 MSCI World ex USA Index $10,000 $9,244   2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Series Sustainable Non-U.S. Developed Markets Fund 25.41% 11.30% MSCI World ex USA ESG Focus Index 23.77% 9.10% MSCI World ex USA Index 24.13% 9.76% A   From May 11, 2023 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	May 11, 2023
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 15,731,574
Holdings Count | shares	389
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 389 Total Advisory Fee $ Portfolio Turnover 33 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 23.4   Industrials 22.6   Information Technology 12.7   Materials 8.5   Consumer Discretionary 8.3   Health Care 6.9   Energy 4.4   Consumer Staples 4.2   Communication Services 1.6   Real Estate 0.7   Utilities 0.5     Common Stocks 93.7 Preferred Stocks 0.1 Short-Term Investments and Net Other Assets (Liabilities) 6.2 ASSET ALLOCATION (% of Fund's net assets) United States 16.9 Japan 15.3 United Kingdom 14.0 Canada 12.0 France 7.9 Germany 7.1 Netherlands 3.9 Switzerland 3.7 Sweden 3.3 Others 15.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     SAP SE 2.5   Novo Nordisk A/S Series B 2.3   ASML Holding NV 2.3   CRH PLC 1.8   BAE Systems PLC 1.5   Linde PLC 1.5   Hitachi Ltd 1.3   RELX PLC 1.3   LVMH Moet Hennessy Louis Vuitton SE 1.2   Schneider Electric SE 1.0     16.7
Fidelity Series Emerging Markets Opportunities Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Emerging Markets Opportunities Fund
Class Name	Fidelity® Series Emerging Markets Opportunities Fund
Trading Symbol	FEMSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Emerging Markets Opportunities Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Emerging Markets Opportunities Fund $ 0.01 %
Expenses Paid, Amount	$ 2
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B353">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Emerging Markets Opportunities Fund $10,000 $8,686 $9,643 $12,443 $10,600 $12,734 $14,474 $17,142 $11,086 $12,683 $15,977 MSCI Emerging Markets Index $10,000 $8,550 $9,346 $11,823 $10,347 $11,577 $12,535 $14,663 $10,115 $11,211 $14,051   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Series Emerging Markets Opportunities Fund 25.97% 4.64% 4.80% MSCI Emerging Markets Index 25.33% 3.95% 3.46%   Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 23,808,570,285
Holdings Count | shares	274
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 274 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Information Technology 22.9   Financials 21.9   Consumer Discretionary 15.6   Communication Services 9.3   Materials 6.5   Industrials 5.8   Consumer Staples 5.3   Energy 4.5   Health Care 3.0   Utilities 3.0   Real Estate 1.2     Common Stocks 98.0 Preferred Stocks 1.0 Bonds 0.1 Short-Term Investments and Net Other Assets (Liabilities) 0.9 ASSET ALLOCATION (% of Fund's net assets) China 31.1 Taiwan 17.8 India 17.0 Korea (South) 8.2 Brazil 5.9 South Africa 3.8 Saudi Arabia 3.7 United States 2.1 Indonesia 2.1 Others 8.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 11.7   Tencent Holdings Ltd 5.3   Samsung Electronics Co Ltd 3.1   Alibaba Group Holding Ltd 2.5   HDFC Bank Ltd 2.4   PDD Holdings Inc Class A ADR 1.9   China Construction Bank Corp H Shares 1.9   Meituan B Shares 1.8   SK Hynix Inc 1.7   Sea Ltd Class A ADR 1.3     33.6
Fidelity Advisor Sustainable International Equity Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable International Equity Fund
Class Name	Fidelity Advisor® Sustainable International Equity Fund Class C
Trading Symbol	FSYCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 2.05 %
Expenses Paid, Amount	$ 230
Expense Ratio, Percent	2.05%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B380">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Class C $10,000 $7,160 $7,780 MSCI EAFE ESG Leaders $10,000 $7,669 $8,792 MSCI EAFE Index $10,000 $7,820 $8,966   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 23.60% -1.14% Class C 24.60% -1.14% MSCI EAFE ESG Leaders 22.13% 2.65% MSCI EAFE Index 23.25% 3.74% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 10,747,030
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 67,920
Investment Company Portfolio Turnover	50%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 50 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.6   Industrials 21.7   Health Care 13.0   Consumer Discretionary 11.0   Information Technology 9.0   Materials 6.5   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.1     Common Stocks 97.5 Short-Term Investments and Net Other Assets (Liabilities) 2.5 ASSET ALLOCATION (% of Fund's net assets) Japan 21.7 United Kingdom 14.1 United States 10.5 France 9.8 Netherlands 8.4 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.7 Others 16.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 2.9   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.5   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B395">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B396">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B397">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity SAI Sustainable Emerging Markets Equity Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® SAI Sustainable Emerging Markets Equity Fund
Class Name	Fidelity® SAI Sustainable Emerging Markets Equity Fund
Trading Symbol	FSSGX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® SAI Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-3455 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-3455
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® SAI Sustainable Emerging Markets Equity Fund $ 0.95 %
Expenses Paid, Amount	$ 107
Expense Ratio, Percent	0.95%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B414">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE April 14, 2022 through October 31, 2024. Initial investment of $10,000. Fidelity® SAI Sustainable Emerging Markets Equity Fund $10,000 $7,600 $8,644 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $7,416 $8,227 MSCI Emerging Markets Index $10,000 $7,742 $8,581   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® SAI Sustainable Emerging Markets Equity Fund 25.12% 3.12% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% 2.21% MSCI Emerging Markets Index 25.33% 2.89% A   From April 14, 2022 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Apr. 14, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 38,790,601
Holdings Count | shares	126
Advisory Fees Paid, Amount	$ 178,506
Investment Company Portfolio Turnover	103%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 126 Total Advisory Fee $ Portfolio Turnover 103 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.7   Information Technology 24.5   Consumer Discretionary 17.5   Communication Services 8.9   Industrials 5.2   Health Care 4.2   Materials 3.6   Consumer Staples 2.9   Energy 2.2   Real Estate 1.3   Utilities 0.7     Common Stocks 95.7 Short-Term Investments and Net Other Assets (Liabilities) 4.3 ASSET ALLOCATION (% of Fund's net assets) China 31.1 Taiwan 15.9 India 13.2 Korea (South) 9.6 Brazil 6.3 South Africa 5.1 United States 4.3 Mexico 3.5 Indonesia 2.3 Others 8.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.3   Alibaba Group Holding Ltd 4.3   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 2.0   SK Hynix Inc 1.8   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7   Bharti Airtel Ltd 1.6     36.1
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-3455 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's contractual management fee was reduced during the reporting period.
Material Fund Change Expenses [Text Block]	The fund's contractual management fee was reduced during the reporting period.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-3455 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-3455</span>" id="sjs-B429">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-3455&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B430">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B431">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Commodity Stock Fund - Class A
Shareholder Report [Line Items]
Fund Name	Fidelity® Global Commodity Stock Fund
Class Name	Fidelity Advisor® Global Commodity Stock Fund Class A
Trading Symbol	FFGAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Global Commodity Stock Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.16 %
Expenses Paid, Amount	$ 123
Expense Ratio, Percent	1.16%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B448">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $7,242 $7,915 $9,382 $9,377 $9,336 $8,553 $13,118 $16,170 $14,611 $16,384 MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index $10,000 $7,702 $8,581 $10,342 $10,510 $10,163 $8,673 $13,570 $15,259 $14,850 $15,721 MSCI ACWI (All Country World Index) Index $10,000 $10,035 $10,284 $12,721 $12,703 $14,362 $15,121 $20,822 $16,723 $18,547 $24,710   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Class A (incl. 5.75% sales charge)   5.68% 10.59% 5.06% Class A (without 5.75% sales charge) 12.13% 11.91% 5.69% MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index 5.86% 9.12% 4.63% MSCI ACWI (All Country World Index) Index 33.23% 11.46% 9.47%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 929,592,306
Holdings Count | shares	61
Advisory Fees Paid, Amount	$ 7,667,954
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 61 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 35.2   Metals & Mining 30.1   Food Products 10.3   Paper & Forest Products 10.2   Energy Equipment & Services 6.0   Chemicals 4.9   Containers & Packaging 1.6   Construction Materials 0.6   Construction & Engineering 0.2   Others 0.1       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 46.1 Canada 24.7 Brazil 7.1 South Africa 6.2 Finland 4.4 Zambia 2.7 Australia 2.6 Norway 2.3 India 2.0 Others 1.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 7.0   Shell PLC 5.8   Archer-Daniels-Midland Co 4.9   Wheaton Precious Metals Corp 4.5   Teck Resources Ltd Class B 4.2   Cenovus Energy Inc 3.9   Energy Transfer LP 3.4   JBS S/A 3.3   UPM-Kymmene Oyj 3.2   Antero Resources Corp 3.2     43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee. The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Adviser [Text Block]	The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B463">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B464">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B465">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series Sustainable Emerging Markets Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Sustainable Emerging Markets Fund
Class Name	Fidelity® Series Sustainable Emerging Markets Fund
Trading Symbol	FEMYX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Sustainable Emerging Markets Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Sustainable Emerging Markets Fund $ 0.01 %
Expenses Paid, Amount	$ 1
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social, and governance (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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B481">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Sustainable Emerging Markets Fund $10,000 $9,620 MSCI Emerging Markets ESG Focus Index $10,000 $9,561 MSCI Emerging Markets Index $10,000 $9,509   2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Series Sustainable Emerging Markets Fund 23.47% 12.36% MSCI Emerging Markets ESG Focus Index 23.58% 11.96% MSCI Emerging Markets Index 25.33% 12.61% A   From May 11, 2023 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	May 11, 2023
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 9,757,678
Holdings Count | shares	184
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	47%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 184 Total Advisory Fee $ Portfolio Turnover 47 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 23.2   Information Technology 22.9   Consumer Discretionary 15.8   Communication Services 7.4   Industrials 5.5   Energy 4.5   Consumer Staples 3.7   Health Care 3.0   Materials 2.9   Utilities 2.1   Real Estate 1.9     Common Stocks 92.6 Preferred Stocks 0.3 Short-Term Investments and Net Other Assets (Liabilities) 7.1 ASSET ALLOCATION (% of Fund's net assets) China 28.8 Taiwan 17.5 India 13.4 Korea (South) 8.1 United States 7.6 Brazil 6.1 South Africa 3.8 Saudi Arabia 2.9 Indonesia 2.2 Others 9.6 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 12.1   Tencent Holdings Ltd 5.1   Reliance Industries Ltd GDR 3.6   Samsung Electronics Co Ltd 3.0   ICICI Bank Ltd ADR 2.8   Alibaba Group Holding Ltd 2.6   Meituan B Shares 2.2   China Construction Bank Corp H Shares 2.1   HDFC Bank Ltd ADR 2.1   Infosys Ltd ADR 1.9     37.5
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: Operating expenses Expense reductions
Material Fund Change Expenses [Text Block]	The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: Operating expenses Expense reductions
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B496">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B497">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable International Equity Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable International Equity Fund
Class Name	Fidelity Advisor® Sustainable International Equity Fund Class I
Trading Symbol	FSQIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 1.05 %
Expenses Paid, Amount	$ 119
Expense Ratio, Percent	1.05%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B514">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Class I $10,000 $7,210 $7,912 MSCI EAFE ESG Leaders $10,000 $7,669 $8,792 MSCI EAFE Index $10,000 $7,820 $8,966   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 25.98% -0.12% MSCI EAFE ESG Leaders 22.13% 2.65% MSCI EAFE Index 23.25% 3.74% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 10,747,030
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 67,920
Investment Company Portfolio Turnover	50%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 50 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.6   Industrials 21.7   Health Care 13.0   Consumer Discretionary 11.0   Information Technology 9.0   Materials 6.5   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.1     Common Stocks 97.5 Short-Term Investments and Net Other Assets (Liabilities) 2.5 ASSET ALLOCATION (% of Fund's net assets) Japan 21.7 United Kingdom 14.1 United States 10.5 France 9.8 Netherlands 8.4 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.7 Others 16.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 2.9   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.5   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B529">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B530">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B531">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable Emerging Markets Equity Fund
Class Name	Fidelity Advisor® Sustainable Emerging Markets Equity Fund Class Z
Trading Symbol	FSZZX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 1.10 %
Expenses Paid, Amount	$ 124
Expense Ratio, Percent	1.10%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B548">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Class Z $10,000 $6,570 $7,452 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $6,534 $7,249 MSCI Emerging Markets Index $10,000 $6,946 $7,699   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 26.04% -2.28% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% -2.57% MSCI Emerging Markets Index 25.33% -1.30% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,416,219
Holdings Count | shares	119
Advisory Fees Paid, Amount	$ 47,275
Investment Company Portfolio Turnover	108%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 119 Total Advisory Fee $ Portfolio Turnover 108 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.8   Information Technology 24.6   Consumer Discretionary 17.3   Communication Services 9.1   Industrials 5.1   Health Care 4.4   Materials 3.7   Consumer Staples 3.0   Energy 2.2   Real Estate 1.2   Utilities 0.7     Common Stocks 96.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets) China 30.9 Taiwan 15.9 India 13.3 Korea (South) 9.7 Brazil 6.3 South Africa 5.2 United States 3.9 Mexico 3.5 Indonesia 2.3 Others 9.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.2   Alibaba Group Holding Ltd 4.2   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 1.9   SK Hynix Inc 1.8   Bharti Airtel Ltd 1.7   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7     35.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B563">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B564">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B565">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series Overseas Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Overseas Fund
Class Name	Fidelity® Series Overseas Fund
Trading Symbol	FSOSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Overseas Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Overseas Fund $ 0.01 %
Expenses Paid, Amount	$ 1
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B580">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 21, 2019 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Overseas Fund $10,000 $10,200 $10,660 $14,805 $10,562 $12,046 MSCI EAFE Index $10,000 $10,320 $9,630 $12,947 $9,989 $11,453   2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund A Fidelity® Series Overseas Fund 26.24% 8.32% 8.12% MSCI EAFE Index 23.25% 6.46% 6.63% A   From June 21, 2019 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Jun. 21, 2019
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 14,911,127,952
Holdings Count | shares	90
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	36%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 90 Total Advisory Fee $ Portfolio Turnover 36 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Industrials 25.9   Financials 23.0   Information Technology 16.3   Health Care 13.4   Materials 9.0   Consumer Discretionary 7.1   Consumer Staples 2.3   Communication Services 0.4     Common Stocks 97.4 Short-Term Investments and Net Other Assets (Liabilities) 2.6 ASSET ALLOCATION (% of Fund's net assets) United States 18.5 United Kingdom 17.9 Japan 15.7 France 11.4 Germany 9.1 Netherlands 6.2 Denmark 4.5 Switzerland 3.4 Italy 3.4 Others 9.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 3.1   SAP SE 3.0   ASML Holding NV 3.0   Hitachi Ltd 2.3   RELX PLC 2.2   Astrazeneca PLC 2.2   Safran SA 2.2   Compass Group PLC 2.1   London Stock Exchange Group PLC 2.1   Wolters Kluwer NV 2.0     24.2
Fidelity Advisor Global Commodity Stock Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity® Global Commodity Stock Fund
Class Name	Fidelity Advisor® Global Commodity Stock Fund Class Z
Trading Symbol	FIQRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Global Commodity Stock Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.76 %
Expenses Paid, Amount	$ 81
Expense Ratio, Percent	0.76%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B608">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE October 2, 2018 through October 31, 2024. Initial investment of $10,000. Class Z $10,000 $9,003 $9,005 $8,286 $12,767 $15,796 $14,327 MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index $10,000 $9,089 $8,789 $7,500 $11,735 $13,197 $12,843 MSCI ACWI (All Country World Index) Index $10,000 $9,268 $10,478 $11,032 $15,191 $12,201 $13,531   2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund A Class Z 12.62% 12.37% 8.18% MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index 5.86% 9.12% 5.18% MSCI ACWI (All Country World Index) Index 33.23% 11.46% 10.17% A   From October 2, 2018 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Oct. 02, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 929,592,306
Holdings Count | shares	61
Advisory Fees Paid, Amount	$ 7,667,954
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 61 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 35.2   Metals & Mining 30.1   Food Products 10.3   Paper & Forest Products 10.2   Energy Equipment & Services 6.0   Chemicals 4.9   Containers & Packaging 1.6   Construction Materials 0.6   Construction & Engineering 0.2   Others 0.1       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 46.1 Canada 24.7 Brazil 7.1 South Africa 6.2 Finland 4.4 Zambia 2.7 Australia 2.6 Norway 2.3 India 2.0 Others 1.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 7.0   Shell PLC 5.8   Archer-Daniels-Midland Co 4.9   Wheaton Precious Metals Corp 4.5   Teck Resources Ltd Class B 4.2   Cenovus Energy Inc 3.9   Energy Transfer LP 3.4   JBS S/A 3.3   UPM-Kymmene Oyj 3.2   Antero Resources Corp 3.2     43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee. The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Adviser [Text Block]	The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B624">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B625">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B626">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable Emerging Markets Equity Fund
Class Name	Fidelity Advisor® Sustainable Emerging Markets Equity Fund Class I
Trading Symbol	FSZIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $ 1.25 %
Expenses Paid, Amount	$ 141
Expense Ratio, Percent	1.25%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B643">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Class I $10,000 $6,570 $7,431 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $6,534 $7,249 MSCI Emerging Markets Index $10,000 $6,946 $7,699   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 25.84% -2.43% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% -2.57% MSCI Emerging Markets Index 25.33% -1.30% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,416,219
Holdings Count | shares	119
Advisory Fees Paid, Amount	$ 47,275
Investment Company Portfolio Turnover	108%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 119 Total Advisory Fee $ Portfolio Turnover 108 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.8   Information Technology 24.6   Consumer Discretionary 17.3   Communication Services 9.1   Industrials 5.1   Health Care 4.4   Materials 3.7   Consumer Staples 3.0   Energy 2.2   Real Estate 1.2   Utilities 0.7     Common Stocks 96.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets) China 30.9 Taiwan 15.9 India 13.3 Korea (South) 9.7 Brazil 6.3 South Africa 5.2 United States 3.9 Mexico 3.5 Indonesia 2.3 Others 9.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.2   Alibaba Group Holding Ltd 4.2   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 1.9   SK Hynix Inc 1.8   Bharti Airtel Ltd 1.7   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7     35.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B658">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B659">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B660">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series International Growth Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series International Growth Fund
Class Name	Fidelity® Series International Growth Fund
Trading Symbol	FIGSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series International Growth Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series International Growth Fund $ 0.01 %
Expenses Paid, Amount	$ 1
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B675">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Fidelity® Series International Growth Fund $10,000 $10,365 $10,044 $12,496 $11,894 $14,580 $15,949 $21,229 $15,432 $17,177 $21,687 MSCI EAFE Growth Index $10,000 $10,428 $10,108 $12,517 $11,783 $13,766 $14,502 $18,876 $13,312 $14,769 $18,234 MSCI EAFE Index $10,000 $10,008 $9,705 $12,004 $11,206 $12,472 $11,638 $15,647 $12,073 $13,841 $17,059   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Series International Growth Fund 26.26% 8.27% 8.05% MSCI EAFE Growth Index 23.46% 5.78% 6.19% MSCI EAFE Index 23.25% 6.46% 5.49%   Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 14,973,945,299
Holdings Count | shares	73
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	26%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 73 Total Advisory Fee $ Portfolio Turnover 26 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Industrials 32.3   Information Technology 20.0   Financials 16.2   Materials 10.7   Consumer Discretionary 10.4   Health Care 6.2   Consumer Staples 1.1   Energy 0.7   Communication Services 0.5     Common Stocks 97.8 Preferred Stocks 0.3 Short-Term Investments and Net Other Assets (Liabilities) 1.9 ASSET ALLOCATION (% of Fund's net assets) United States 28.1 United Kingdom 11.8 France 11.3 Japan 9.9 Sweden 7.5 Germany 6.7 Netherlands 6.3 Denmark 5.2 Taiwan 3.3 Others 9.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     SAP SE 5.3   Novo Nordisk A/S Series B 5.2   ASML Holding NV 4.9   Safran SA 4.0   CRH PLC 3.9   Linde PLC 3.8   Atlas Copco AB A Shares 3.5   Taiwan Semiconductor Manufacturing Co Ltd 3.3   Recruit Holdings Co Ltd 3.0   LVMH Moet Hennessy Louis Vuitton SE 2.7     39.6
Fidelity Advisor Global Commodity Stock Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity® Global Commodity Stock Fund
Class Name	Fidelity Advisor® Global Commodity Stock Fund Class C
Trading Symbol	FCGCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Global Commodity Stock Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.91 %
Expenses Paid, Amount	$ 202
Expense Ratio, Percent	1.91%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B702">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Class C $10,000 $7,626 $8,272 $9,727 $9,661 $9,549 $8,679 $13,219 $16,172 $14,613 $16,386 MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index $10,000 $7,702 $8,581 $10,342 $10,510 $10,163 $8,673 $13,570 $15,259 $14,850 $15,721 MSCI ACWI (All Country World Index) Index $10,000 $10,035 $10,284 $12,721 $12,703 $14,362 $15,121 $20,822 $16,723 $18,547 $24,710   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Class C  (incl. contingent deferred sales charge) 10.34% 11.07% 5.06% Class C 11.34% 11.07% 5.06% MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index 5.86% 9.12% 4.63% MSCI ACWI (All Country World Index) Index 33.23% 11.46% 9.47%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 929,592,306
Holdings Count | shares	61
Advisory Fees Paid, Amount	$ 7,667,954
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 61 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 35.2   Metals & Mining 30.1   Food Products 10.3   Paper & Forest Products 10.2   Energy Equipment & Services 6.0   Chemicals 4.9   Containers & Packaging 1.6   Construction Materials 0.6   Construction & Engineering 0.2   Others 0.1       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 46.1 Canada 24.7 Brazil 7.1 South Africa 6.2 Finland 4.4 Zambia 2.7 Australia 2.6 Norway 2.3 India 2.0 Others 1.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 7.0   Shell PLC 5.8   Archer-Daniels-Midland Co 4.9   Wheaton Precious Metals Corp 4.5   Teck Resources Ltd Class B 4.2   Cenovus Energy Inc 3.9   Energy Transfer LP 3.4   JBS S/A 3.3   UPM-Kymmene Oyj 3.2   Antero Resources Corp 3.2     43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee. The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Adviser [Text Block]	The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B717">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B718">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B719">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series Emerging Markets Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Emerging Markets Fund
Class Name	Fidelity® Series Emerging Markets Fund
Trading Symbol	FHKFX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Emerging Markets Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Emerging Markets Fund $ 0.01 %
Expenses Paid, Amount	$ 2
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B734">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE August 29, 2018 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Emerging Markets Fund $10,000 $8,870 $9,520 $9,916 $11,788 $7,482 $8,532 MSCI Emerging Markets Index $10,000 $8,960 $10,026 $10,855 $12,697 $8,759 $9,709   2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year Life of Fund A Fidelity® Series Emerging Markets Fund 24.61% 2.23% 1.00% MSCI Emerging Markets Index 25.33% 3.95% 3.23% A   From August 29, 2018 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Aug. 29, 2018
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 5,945,184,813
Holdings Count | shares	141
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	91%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 141 Total Advisory Fee $ Portfolio Turnover 91 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Information Technology 23.6   Financials 22.8   Consumer Discretionary 15.9   Communication Services 8.2   Industrials 6.4   Materials 5.9   Consumer Staples 3.6   Health Care 3.4   Energy 2.7   Utilities 1.3   Real Estate 1.0     Common Stocks 94.8 Short-Term Investments and Net Other Assets (Liabilities) 5.2 ASSET ALLOCATION (% of Fund's net assets) China 28.8 India 15.5 Taiwan 15.1 Korea (South) 9.1 Brazil 7.2 United States 5.2 South Africa 5.0 Mexico 3.0 Indonesia 2.0 Others 9.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.7   Tencent Holdings Ltd 5.5   Samsung Electronics Co Ltd 3.6   Alibaba Group Holding Ltd 3.3   HDFC Bank Ltd 2.3   Hon Hai Precision Industry Co Ltd 1.9   SK Hynix Inc 1.7   ICICI Bank Ltd 1.7   Bank Central Asia Tbk PT 1.7   Xiaomi Corp B Shares 1.5     33.9
Fidelity Advisor Sustainable International Equity Fund - Class Z
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable International Equity Fund
Class Name	Fidelity Advisor® Sustainable International Equity Fund Class Z
Trading Symbol	FSQZX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $ 0.90 %
Expenses Paid, Amount	$ 102
Expense Ratio, Percent	0.90%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B762">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Class Z $10,000 $7,220 $7,932 MSCI EAFE ESG Leaders $10,000 $7,669 $8,792 MSCI EAFE Index $10,000 $7,820 $8,966   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 26.18% 0.03% MSCI EAFE ESG Leaders 22.13% 2.65% MSCI EAFE Index 23.25% 3.74% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 10,747,030
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 67,920
Investment Company Portfolio Turnover	50%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 50 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.6   Industrials 21.7   Health Care 13.0   Consumer Discretionary 11.0   Information Technology 9.0   Materials 6.5   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.1     Common Stocks 97.5 Short-Term Investments and Net Other Assets (Liabilities) 2.5 ASSET ALLOCATION (% of Fund's net assets) Japan 21.7 United Kingdom 14.1 United States 10.5 France 9.8 Netherlands 8.4 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.7 Others 16.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 2.9   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.5   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B777">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B778">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B779">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable Emerging Markets Equity Fund
Class Name	Fidelity Advisor® Sustainable Emerging Markets Equity Fund Class C
Trading Symbol	FSYKX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 2.25 %
Expenses Paid, Amount	$ 253
Expense Ratio, Percent	2.25%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B796">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Class C $10,000 $6,520 $7,300 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $6,534 $7,249 MSCI Emerging Markets Index $10,000 $6,946 $7,699   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 23.71% -3.39% Class C 24.71% -3.39% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% -2.57% MSCI Emerging Markets Index 25.33% -1.30% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,416,219
Holdings Count | shares	119
Advisory Fees Paid, Amount	$ 47,275
Investment Company Portfolio Turnover	108%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 119 Total Advisory Fee $ Portfolio Turnover 108 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.8   Information Technology 24.6   Consumer Discretionary 17.3   Communication Services 9.1   Industrials 5.1   Health Care 4.4   Materials 3.7   Consumer Staples 3.0   Energy 2.2   Real Estate 1.2   Utilities 0.7     Common Stocks 96.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets) China 30.9 Taiwan 15.9 India 13.3 Korea (South) 9.7 Brazil 6.3 South Africa 5.2 United States 3.9 Mexico 3.5 Indonesia 2.3 Others 9.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.2   Alibaba Group Holding Ltd 4.2   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 1.9   SK Hynix Inc 1.8   Bharti Airtel Ltd 1.7   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7     35.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B811">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B812">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B813">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Sustainable International Equity Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable International Equity Fund
Class Name	Fidelity® Sustainable International Equity Fund
Trading Symbol	FSYRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Sustainable International Equity Fund $ 1.05 %
Expenses Paid, Amount	$ 118
Expense Ratio, Percent	1.05%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B830">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Fidelity® Sustainable International Equity Fund $10,000 $7,210 $7,912 MSCI EAFE ESG Leaders $10,000 $7,669 $8,792 MSCI EAFE Index $10,000 $7,820 $8,966   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable International Equity Fund 25.98% -0.12% MSCI EAFE ESG Leaders 22.13% 2.65% MSCI EAFE Index 23.25% 3.74% A   From February 10, 2022 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 10,747,030
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 67,920
Investment Company Portfolio Turnover	50%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 50 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.6   Industrials 21.7   Health Care 13.0   Consumer Discretionary 11.0   Information Technology 9.0   Materials 6.5   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.1     Common Stocks 97.5 Short-Term Investments and Net Other Assets (Liabilities) 2.5 ASSET ALLOCATION (% of Fund's net assets) Japan 21.7 United Kingdom 14.1 United States 10.5 France 9.8 Netherlands 8.4 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.7 Others 16.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 2.9   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.5   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B845">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B846">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B847">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Global Commodity Stock Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity® Global Commodity Stock Fund
Class Name	Fidelity Advisor® Global Commodity Stock Fund Class M
Trading Symbol	FFGTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Global Commodity Stock Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.41 %
Expenses Paid, Amount	$ 150
Expense Ratio, Percent	1.41%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B864">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $7,392 $8,063 $9,522 $9,493 $9,427 $8,605 $13,164 $16,182 $14,579 $16,306 MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index $10,000 $7,702 $8,581 $10,342 $10,510 $10,163 $8,673 $13,570 $15,259 $14,850 $15,721 MSCI ACWI (All Country World Index) Index $10,000 $10,035 $10,284 $12,721 $12,703 $14,362 $15,121 $20,822 $16,723 $18,547 $24,710   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Class M (incl. 3.50% sales charge)   7.93% 10.79% 5.01% Class M (without 3.50% sales charge) 11.85% 11.58% 5.39% MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index 5.86% 9.12% 4.63% MSCI ACWI (All Country World Index) Index 33.23% 11.46% 9.47%   Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 929,592,306
Holdings Count | shares	61
Advisory Fees Paid, Amount	$ 7,667,954
Investment Company Portfolio Turnover	49%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 61 Total Advisory Fee $ Portfolio Turnover 49 %
Holdings [Text Block]	TOP INDUSTRIES (% of Fund's net assets) Oil, Gas & Consumable Fuels 35.2   Metals & Mining 30.1   Food Products 10.3   Paper & Forest Products 10.2   Energy Equipment & Services 6.0   Chemicals 4.9   Containers & Packaging 1.6   Construction Materials 0.6   Construction & Engineering 0.2   Others 0.1       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 46.1 Canada 24.7 Brazil 7.1 South Africa 6.2 Finland 4.4 Zambia 2.7 Australia 2.6 Norway 2.3 India 2.0 Others 1.9 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 7.0   Shell PLC 5.8   Archer-Daniels-Midland Co 4.9   Wheaton Precious Metals Corp 4.5   Teck Resources Ltd Class B 4.2   Cenovus Energy Inc 3.9   Energy Transfer LP 3.4   JBS S/A 3.3   UPM-Kymmene Oyj 3.2   Antero Resources Corp 3.2     43.4
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee. The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Adviser [Text Block]	The fund's sub-advisory agreement with FIL Investments (Japan) Limited was not renewed.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B879">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B880">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B881">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Sustainable Emerging Markets Equity Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable Emerging Markets Equity Fund
Class Name	Fidelity® Sustainable Emerging Markets Equity Fund
Trading Symbol	FSYJX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable Emerging Markets Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Sustainable Emerging Markets Equity Fund $ 1.25 %
Expenses Paid, Amount	$ 141
Expense Ratio, Percent	1.25%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B898">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000. Fidelity® Sustainable Emerging Markets Equity Fund $10,000 $6,570 $7,431 MSCI Emerging Markets (EM) ESG Leaders Index $10,000 $6,534 $7,249 MSCI Emerging Markets Index $10,000 $6,946 $7,699   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Emerging Markets Equity Fund 25.84% -2.43% MSCI Emerging Markets (EM) ESG Leaders Index 28.51% -2.57% MSCI Emerging Markets Index 25.33% -1.30% A   From February 10, 2022 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 6,416,219
Holdings Count | shares	119
Advisory Fees Paid, Amount	$ 47,275
Investment Company Portfolio Turnover	108%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 119 Total Advisory Fee $ Portfolio Turnover 108 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 24.8   Information Technology 24.6   Consumer Discretionary 17.3   Communication Services 9.1   Industrials 5.1   Health Care 4.4   Materials 3.7   Consumer Staples 3.0   Energy 2.2   Real Estate 1.2   Utilities 0.7     Common Stocks 96.1 Short-Term Investments and Net Other Assets (Liabilities) 3.9 ASSET ALLOCATION (% of Fund's net assets) China 30.9 Taiwan 15.9 India 13.3 Korea (South) 9.7 Brazil 6.3 South Africa 5.2 United States 3.9 Mexico 3.5 Indonesia 2.3 Others 9.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Taiwan Semiconductor Manufacturing Co Ltd 10.5   Tencent Holdings Ltd 6.2   Alibaba Group Holding Ltd 4.2   Samsung Electronics Co Ltd 4.2   Hon Hai Precision Industry Co Ltd 2.0   Bank Central Asia Tbk PT 1.9   SK Hynix Inc 1.8   Bharti Airtel Ltd 1.7   China Construction Bank Corp H Shares 1.7   HDFC Bank Ltd 1.7     35.9
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B913">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B914">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B915">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Advisor Sustainable International Equity Fund - Class M
Shareholder Report [Line Items]
Fund Name	Fidelity® Sustainable International Equity Fund
Class Name	Fidelity Advisor® Sustainable International Equity Fund Class M
Trading Symbol	FSYMX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Sustainable International Equity Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-877-208-0098
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class M $ 1.55 %
Expenses Paid, Amount	$ 175
Expense Ratio, Percent	1.55%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • • Application of FMR's environmental, social and governance 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.
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B932">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE February 10, 2022 through October 31, 2024. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $6,938 $7,568 MSCI EAFE ESG Leaders $10,000 $7,669 $8,792 MSCI EAFE Index $10,000 $7,820 $8,966   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   21.02% -1.90% Class M (without 3.50% sales charge) 25.40% -0.61% MSCI EAFE ESG Leaders 22.13% 2.65% MSCI EAFE Index 23.25% 3.74% A   From February 10, 2022 Visit institutional.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Feb. 10, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 10,747,030
Holdings Count | shares	83
Advisory Fees Paid, Amount	$ 67,920
Investment Company Portfolio Turnover	50%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 83 Total Advisory Fee $ Portfolio Turnover 50 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 25.6   Industrials 21.7   Health Care 13.0   Consumer Discretionary 11.0   Information Technology 9.0   Materials 6.5   Consumer Staples 4.5   Utilities 3.0   Communication Services 2.1   Real Estate 1.1     Common Stocks 97.5 Short-Term Investments and Net Other Assets (Liabilities) 2.5 ASSET ALLOCATION (% of Fund's net assets) Japan 21.7 United Kingdom 14.1 United States 10.5 France 9.8 Netherlands 8.4 Germany 6.7 Denmark 5.1 Italy 3.8 Australia 3.7 Others 16.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Novo Nordisk A/S Series B 4.4   Hitachi Ltd 4.3   ITOCHU Corp 3.5   CRH PLC (United Kingdom) 2.9   ORIX Corp 2.8   ASML Holding NV 2.7   Sony Group Corp 2.6   Schneider Electric SE 2.6   Taiwan Semiconductor Manufacturing Co Ltd 2.5   Unilever PLC 2.4     30.7
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a basic fee rate that may vary by class (subject to a performance adjustment). The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-877-208-0098 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-877-208-0098</span>" id="sjs-B947">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B948">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B949">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series International Small Cap Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series International Small Cap Fund
Class Name	Fidelity® Series International Small Cap Fund
Trading Symbol	FSTSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series International Small Cap Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series International Small Cap Fund $ 0.01 %
Expenses Paid, Amount	$ 1
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B964">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Fidelity® Series International Small Cap Fund $10,000 $10,836 $10,838 $13,642 $13,134 $14,811 $16,233 $22,499 $15,340 $16,348 $20,802 MSCI EAFE Small Cap Index $10,000 $10,855 $11,194 $14,295 $13,198 $14,385 $14,210 $19,320 $13,494 $14,394 $17,734 MSCI EAFE Index $10,000 $10,008 $9,705 $12,004 $11,206 $12,472 $11,638 $15,647 $12,073 $13,841 $17,059   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Series International Small Cap Fund 27.24% 7.03% 7.60% MSCI EAFE Small Cap Index 23.20% 4.27% 5.90% MSCI EAFE Index 23.25% 6.46% 5.49%   Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 3,907,046,437
Holdings Count | shares	285
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	30%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 285 Total Advisory Fee $ Portfolio Turnover 30 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Industrials 30.0   Information Technology 18.3   Consumer Discretionary 11.3   Communication Services 7.9   Financials 7.7   Materials 6.3   Health Care 5.3   Consumer Staples 4.3   Real Estate 3.2   Energy 2.3   Utilities 0.1     Common Stocks 96.7 International Equity Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 2.9 ASSET ALLOCATION (% of Fund's net assets) Japan 27.8 United Kingdom 16.0 Sweden 12.5 Germany 6.9 United States 6.0 Netherlands 5.3 Canada 3.9 France 3.3 Italy 2.8 Others 15.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Lagercrantz Group AB B Shares 3.9   CTS Eventim AG & Co KGaA 3.2   AddTech AB B Shares 3.0   Azbil Corp 2.7   Spectris PLC 2.2   Aalberts NV 2.1   Interpump Group SpA 2.1   Morningstar Inc 2.0   Howden Joinery Group PLC 1.5   Kongsberg Gruppen ASA 1.5     24.2
Fidelity Series International Value Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series International Value Fund
Class Name	Fidelity® Series International Value Fund
Trading Symbol	FINVX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series International Value Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series International Value Fund $ 0.01 %
Expenses Paid, Amount	$ 1
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B989">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the past 10 years?    CUMULATIVE PERFORMANCE October 31, 2014 through October 31, 2024. Initial investment of $10,000. Fidelity® Series International Value Fund $10,000 $9,935 $9,489 $11,418 $10,492 $11,068 $9,679 $14,030 $11,728 $13,955 $17,471 MSCI EAFE Value Index $10,000 $9,591 $9,294 $11,477 $10,621 $11,237 $9,189 $12,742 $10,687 $12,659 $15,588 MSCI EAFE Index $10,000 $10,008 $9,705 $12,004 $11,206 $12,472 $11,638 $15,647 $12,073 $13,841 $17,059   2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year 5 Year 10 Year Fidelity® Series International Value Fund 25.19% 9.56% 5.74% MSCI EAFE Value Index 23.14% 6.76% 4.54% MSCI EAFE Index 23.25% 6.46% 5.49%   Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 15,015,233,252
Holdings Count | shares	101
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 101 Total Advisory Fee $ Portfolio Turnover 33 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Financials 35.0   Industrials 18.1   Materials 13.0   Energy 8.3   Consumer Discretionary 5.1   Health Care 4.8   Information Technology 4.3   Consumer Staples 3.9   Communication Services 3.0   Real Estate 0.9   Utilities 0.6     Common Stocks 96.5 Preferred Stocks 0.5 Short-Term Investments and Net Other Assets (Liabilities) 3.0 ASSET ALLOCATION (% of Fund's net assets) Japan 22.6 United Kingdom 14.7 United States 13.1 Germany 11.6 France 9.8 Australia 6.1 Italy 5.0 Spain 3.4 Switzerland 3.3 Others 10.4 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Shell PLC ADR 3.7   Hitachi Ltd 2.7   Banco Santander SA 2.4   AXA SA 2.3   CRH PLC 2.2   Rheinmetall AG 2.2   BAE Systems PLC 2.1   BHP Group Ltd 2.1   TotalEnergies SE 2.0   Mitsubishi UFJ Financial Group Inc 2.0     23.7
Fidelity Infrastructure Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Infrastructure Fund
Class Name	Fidelity® Infrastructure Fund
Trading Symbol	FNSTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Infrastructure Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com.
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1-800-544-8544
Additional Information Email	fidfunddocuments@fidelity.com
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Infrastructure Fund $ 0.95 %
Expenses Paid, Amount	$ 110
Expense Ratio, Percent	0.95%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1016">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE November 5, 2019 through October 31, 2024. Initial investment of $10,000. Fidelity® Infrastructure Fund $10,000 $10,479 $12,780 $11,509 $11,229 $14,725 S&P® Global Infrastructure Index $10,000 $8,403 $10,830 $10,324 $10,189 $13,577 MSCI ACWI (All Country World Index) Index $10,000 $10,388 $14,305 $11,489 $12,742 $16,976   2019 2020 2021 2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Infrastructure Fund 31.13% 8.06% S&P® Global Infrastructure Index 33.26% 6.32% MSCI ACWI (All Country World Index) Index 33.23% 11.18% A   From November 5, 2019 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Nov. 05, 2019
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 45,167,267
Holdings Count | shares	48
Advisory Fees Paid, Amount	$ 331,166
Investment Company Portfolio Turnover	74%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 48 Total Advisory Fee $ Portfolio Turnover 74 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Utilities 29.5   Industrials 26.7   Energy 17.9   Real Estate 11.2   Communication Services 6.5   Information Technology 3.8     Common Stocks 95.6 Short-Term Investments and Net Other Assets (Liabilities) 4.4 ASSET ALLOCATION (% of Fund's net assets) United States 80.6 Spain 8.7 United Kingdom 5.1 Mexico 2.8 Canada 1.3 China 0.8 Tanzania 0.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     Aena SME SA 6.6   Southern Co/The 6.2   NextEra Energy Inc 5.9   Williams Cos Inc/The 5.2   Cheniere Energy Inc 4.8   Sempra 4.4   Targa Resources Corp 4.3   National Grid PLC 3.7   GFL Environmental Inc Subordinate Voting Shares (United States) 2.8   Constellation Energy Corp 2.7     46.6
Material Fund Change [Text Block]	How has the Fund changed? This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com . The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Material Fund Change Expenses [Text Block]	The fund's transfer agent and pricing & bookkeeping fees were changed to a fixed rate effective December 1, 2023, through February 29, 2024, in anticipation of the transition to a new management fee structure. Effective March 1, 2024, the fund's management contract was amended to incorporate administrative services previously covered under separate services agreements (transfer agent and pricing & bookkeeping). The amended contract incorporates a management fee rate that may vary by class. The Adviser or an affiliate pays certain expenses of managing and operating the fund out of each class's management fee.
Summary of Change Legend [Text Block]	This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by December 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-544-8544 or by sending an e-mail to fidfunddocuments fidelity.com .
Updated Prospectus Phone Number	1-800-544-8544</span>" id="sjs-B1031">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544&lt;/span>
Updated Prospectus Email Address	fidfunddocuments@fidelity.com</span>" id="sjs-B1032">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com&lt;/span>
Updated Prospectus Web Address	fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B1033">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec&lt;/span>
Fidelity Series Select International Small Cap Fund
Shareholder Report [Line Items]
Fund Name	Fidelity® Series Select International Small Cap Fund
Class Name	Fidelity® Series Select International Small Cap Fund
Trading Symbol	FSSJX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains information about Fidelity® Series Select International Small Cap Fund for the period November 1, 2023 to October 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544.
Additional Information Phone Number	1-800-544-8544
Additional Information Website	fundresearch.fidelity.com/prospectus/sec
Expenses [Text Block]	What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Series Select International Small Cap Fund $ 0.01 %
Expenses Paid, Amount	$ 1
Expense Ratio, Percent	0.01%
Factors Affecting Performance [Text Block]	What affected the Fund's performance this period? • • • • • • • •
Performance Past Does Not Indicate Future [Text]	The Fund's past performance is not a good predictor of the Fund's future performance.</span>" id="sjs-B1048">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span>
Line Graph [Table Text Block]	How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE November 4, 2022 through October 31, 2024. Initial investment of $10,000. Fidelity® Series Select International Small Cap Fund $10,000 $10,803 $12,809 MSCI EAFE Small Cap Index $10,000 $10,593 $13,051 MSCI EAFE Index $10,000 $11,332 $13,967   2022 2023 2024
Average Annual Return [Table Text Block]	AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Series Select International Small Cap Fund 18.56% 13.23% MSCI EAFE Small Cap Index 23.20% 14.30% MSCI EAFE Index 23.25% 18.26% A   From November 4, 2022 Visit www.fidelity.com for more recent performance information.   The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Performance Inception Date	Nov. 04, 2022
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
Net Assets	$ 1,280,635
Holdings Count | shares	196
Advisory Fees Paid, Amount	$ 0
Investment Company Portfolio Turnover	18%
Additional Fund Statistics [Text Block]	Key Fund Statistics (as of October 31, 2024) KEY FACTS Fund Size $ Number of Holdings 196 Total Advisory Fee $ Portfolio Turnover 18 %
Holdings [Text Block]	MARKET SECTORS (% of Fund's net assets)     Industrials 26.4   Consumer Discretionary 12.8   Financials 11.4   Materials 9.6   Real Estate 8.5   Information Technology 8.2   Health Care 6.5   Consumer Staples 4.6   Communication Services 3.8   Energy 3.3   Utilities 2.1     Common Stocks 96.8 Preferred Stocks 0.4 Short-Term Investments and Net Other Assets (Liabilities) 2.8 ASSET ALLOCATION (% of Fund's net assets) Japan 38.6 United Kingdom 12.6 Australia 7.7 France 5.4 Sweden 4.6 Germany 4.3 Switzerland 3.1 United States 2.8 Spain 2.6 Others 18.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)
Largest Holdings [Text Block]	TOP HOLDINGS (% of Fund's net assets)     VZ Holding AG 1.2   Sanwa Holdings Corp 1.1   Lancashire Holdings Ltd 1.0   Mitie Group PLC 1.0   Banca Generali SpA 1.0   Rexel SA 0.9   Steadfast Group Ltd 0.9   Suruga Bank Ltd 0.9   Vistry Group PLC 0.8   Inaba Denki Sangyo Co Ltd 0.8     9.6

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)

12 Months Ended

24 Months Ended

36 Months Ended

60 Months Ended

72 Months Ended

84 Months Ended

96 Months Ended

120 Months Ended

132 Months Ended

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2024

Oct. 31, 2023

Oct. 31, 2022

Oct. 31, 2021

Oct. 31, 2020

Oct. 31, 2019

Oct. 31, 2018

Oct. 31, 2017

Oct. 31, 2016

Oct. 31, 2015

Oct. 31, 2014

C000234212_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000234212_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000235237_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000235237_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

6.98%

C000211072_0_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000211072_0_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.46%

C000211072_0_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

6.61%

C000191329_0_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

31.60%

C000191329_0_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.67%

C000191329_0_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

8.28%

C000215142_0_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000215142_0_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

11.18%

C000234201_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000234201_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(1.30%)

C000234206_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000234206_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(1.30%)

C000071918_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000071918_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.46%

C000071918_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.47%

C000071913_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000071913_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.46%

C000071913_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.47%

C000242615_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.13%

C000242615_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

9.76%

C000069437_0_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000069437_0_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.95%

C000069437_0_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.46%

C000234208_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000234208_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000235236_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000235236_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.89%

C000071914_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000071914_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.46%

C000071914_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.47%

C000242614_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000242614_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

12.61%

C000234209_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000234209_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000234204_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000234204_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(1.30%)

C000212505_0_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000212505_0_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.46%

C000212505_0_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

6.63%

C000205035_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000205035_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.46%

C000205035_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

10.17%

C000234203_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000234203_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(1.30%)

C000080862_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000080862_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.46%

C000080862_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.49%

C000071916_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000071916_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.46%

C000071916_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.47%

C000203452_0_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000203452_0_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

3.95%

C000203452_0_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.23%

C000234210_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000234210_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000234202_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000234202_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(1.30%)

C000234211_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000234211_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000071917_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000071917_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.46%

C000071917_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.47%

C000234205_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.33%

C000234205_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(1.30%)

C000234207_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000234207_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

3.74%

C000080866_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000080866_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.46%

C000080866_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.49%

C000080864_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000080864_1_BBIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.46%

C000080864_1_BBIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.49%

C000215141_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.23%

C000215141_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

11.18%

C000238445_1_BBIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.25%

C000238445_1_BBIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

18.26%

C000234212_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-D245">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000234212_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

$ 9,425

C000234212_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

$ 6,786

C000234212_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,426

$ 7,426

$ 7,426

$ 7,426

$ 7,426

$ 7,426

$ 7,426

$ 7,426

$ 7,426

C000234212_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D257">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000234212_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234212_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,669

C000234212_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,792

8,792

$ 8,792

8,792

8,792

8,792

8,792

8,792

8,792

C000234212_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D269">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000234212_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234212_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,820

C000234212_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,966

8,966

$ 8,966

8,966

8,966

8,966

8,966

8,966

8,966

C000234212_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.48%

C000234212_ClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(2.49%)

C000234212_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.71%

C000234212_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(0.35%)

C000234212_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000234212_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.65%

C000235237_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® SAI Sustainable International Equity Fund</span>" id="sjs-D299">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® SAI Sustainable International Equity Fund&lt;/span>

C000235237_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000235237_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

8,060

C000235237_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,875

8,875

$ 8,875

8,875

8,875

8,875

8,875

8,875

8,875

C000235237_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D311">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000235237_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000235237_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

8,296

C000235237_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

9,511

9,511

$ 9,511

9,511

9,511

9,511

9,511

9,511

9,511

C000235237_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D323">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000235237_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000235237_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

8,407

C000235237_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 9,638

9,638

$ 9,638

9,638

$ 9,638

9,638

9,638

9,638

9,638

C000235237_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.43%

C000235237_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

4.30%

C000235237_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000235237_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

6.05%

C000211072_LG_ClassMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® SAI International SMA Completion Fund</span>" id="sjs-F347">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® SAI International SMA Completion Fund&lt;/span>

C000211072_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

$ 10,000

C000211072_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

$ 10,470

C000211072_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

$ 12,415

C000211072_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,646

C000211072_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,313

C000211072_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 10,994

10,994

10,994

10,994

$ 10,994

10,994

10,994

10,994

10,994

C000211072_LG_1_AdditionalIndexMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-F368">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000211072_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000211072_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,437

C000211072_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

9,739

C000211072_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,094

C000211072_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,103

C000211072_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 11,583

11,583

11,583

$ 11,583

$ 11,583

11,583

$ 11,583

11,583

11,583

C000211072_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.95%

C000211072_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.24%

C000211072_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

5.57%

C000191329_LG_ClassMember_8YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Canada Fund</span>" id="sjs-H398">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Canada Fund&lt;/span>

C000191329_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

$ 10,000

C000191329_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

$ 10,660

C000191329_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,100

C000191329_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,273

C000191329_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

10,346

C000191329_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,974

C000191329_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,784

C000191329_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 15,011

15,011

15,011

$ 15,011

15,011

15,011

$ 15,011

15,011

15,011

C000191329_LG_1_AdditionalIndexMember_8YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Canada Index</span>" id="sjs-H425">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Canada Index&lt;/span>

C000191329_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,000

C000191329_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,602

C000191329_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,012

C000191329_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,195

C000191329_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

10,553

C000191329_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,773

C000191329_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,617

C000191329_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 13,495

13,495

13,495

$ 13,495

$ 13,495

13,495

$ 13,495

13,495

13,495

C000191329_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.38%

C000191329_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.15%

C000191329_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

9.40%

C000215142_LG_ClassMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Enduring Opportunities Fund</span>" id="sjs-F461">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enduring Opportunities Fund&lt;/span>

C000215142_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000215142_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,922

C000215142_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

16,706

C000215142_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,252

C000215142_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,373

C000215142_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,715

16,715

16,715

$ 16,715

$ 16,715

16,715

16,715

16,715

16,715

C000215142_LG_1_AdditionalIndexMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-F482">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000215142_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000215142_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,388

C000215142_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,305

C000215142_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,489

C000215142_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,742

C000215142_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,976

16,976

$ 16,976

16,976

$ 16,976

16,976

16,976

16,976

16,976

C000215142_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

35.09%

C000215142_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

10.84%

C000234201_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-D509">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000234201_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

9,650

C000234201_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,311

C000234201_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,110

7,110

$ 7,110

7,110

7,110

7,110

7,110

7,110

7,110

C000234201_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D521">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000234201_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234201_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,534

C000234201_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

7,249

7,249

$ 7,249

7,249

7,249

7,249

7,249

7,249

7,249

C000234201_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D533">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000234201_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234201_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,946

C000234201_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,699

7,699

$ 7,699

7,699

7,699

7,699

7,699

7,699

7,699

C000234201_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

20.80%

C000234201_ClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(4.19%)

C000234201_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.18%

C000234201_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(2.93%)

C000234201_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000234201_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(2.57%)

C000234206_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-D563">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000234206_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

9,425

C000234206_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,173

C000234206_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 6,972

6,972

$ 6,972

6,972

6,972

6,972

6,972

6,972

6,972

C000234206_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D575">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000234206_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234206_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,534

C000234206_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

7,249

7,249

$ 7,249

7,249

7,249

7,249

7,249

7,249

7,249

C000234206_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D587">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000234206_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234206_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,946

C000234206_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,699

7,699

$ 7,699

7,699

7,699

7,699

7,699

7,699

$ 7,699

C000234206_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.36%

C000234206_ClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(4.76%)

C000234206_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.58%

C000234206_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(2.67%)

C000234206_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000234206_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(2.57%)

C000071918_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-J617">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000071918_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

$ 10,000

C000071918_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

$ 7,707

C000071918_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

$ 8,449

C000071918_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,054

C000071918_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,084

C000071918_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,078

C000071918_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,261

C000071918_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,259

C000071918_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,619

C000071918_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

15,958

C000071918_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,945

17,945

17,945

17,945

17,945

17,945

17,945

17,945

$ 17,945

C000071918_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index</span>" id="sjs-J653">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index&lt;/span>

C000071918_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071918_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,702

C000071918_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,581

C000071918_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,342

C000071918_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,510

C000071918_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,163

C000071918_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,673

C000071918_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,570

C000071918_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,259

C000071918_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,850

C000071918_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,721

15,721

15,721

15,721

15,721

15,721

15,721

15,721

$ 15,721

C000071918_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-J689">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000071918_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071918_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,035

C000071918_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,284

C000071918_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,721

C000071918_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,703

C000071918_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,362

C000071918_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,121

C000071918_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,822

C000071918_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,723

C000071918_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,547

C000071918_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,710

24,710

24,710

$ 24,710

24,710

24,710

24,710

$ 24,710

$ 24,710

C000071918_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.45%

C000071918_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.23%

C000071918_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.02%

C000071918_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.86%

C000071918_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.12%

C000071918_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.63%

C000071913_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Global Commodity Stock Fund</span>" id="sjs-J743">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Global Commodity Stock Fund&lt;/span>

C000071913_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071913_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,703

C000071913_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,444

C000071913_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,018

C000071913_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,042

C000071913_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,018

C000071913_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,200

C000071913_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,164

C000071913_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

17,502

C000071913_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

15,846

C000071913_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,813

17,813

17,813

$ 17,813

17,813

17,813

17,813

$ 17,813

$ 17,813

C000071913_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index</span>" id="sjs-J779">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index&lt;/span>

C000071913_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071913_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,702

C000071913_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,581

C000071913_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,342

C000071913_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,510

C000071913_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,163

C000071913_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,673

C000071913_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,570

C000071913_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,259

C000071913_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,850

C000071913_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,721

15,721

15,721

15,721

15,721

15,721

15,721

15,721

$ 15,721

C000071913_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-J815">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000071913_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071913_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,035

C000071913_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,284

C000071913_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,721

C000071913_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,703

C000071913_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,362

C000071913_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,121

C000071913_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,822

C000071913_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,723

C000071913_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,547

C000071913_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,710

$ 24,710

24,710

$ 24,710

24,710

24,710

24,710

$ 24,710

$ 24,710

C000071913_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.42%

C000071913_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.20%

C000071913_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.94%

C000071913_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.86%

C000071913_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.12%

C000071913_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.63%

C000242615_LG_ClassMember_2YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Sustainable Non-U.S. Developed Markets Fund</span>" id="sjs-C869">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Sustainable Non-U.S. Developed Markets Fund&lt;/span>

C000242615_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,000

C000242615_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 9,340

$ 9,340

9,340

$ 9,340

9,340

9,340

9,340

$ 9,340

9,340

C000242615_LG_1_AdditionalIndexMember_2YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI World ex USA ESG Focus Index</span>" id="sjs-C878">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI World ex USA ESG Focus Index&lt;/span>

C000242615_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,000

C000242615_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

9,188

$ 9,188

9,188

9,188

9,188

9,188

9,188

9,188

9,188

C000242615_LG_2_AdditionalIndexMember_2YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI World ex USA Index</span>" id="sjs-C887">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI World ex USA Index&lt;/span>

C000242615_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,000

C000242615_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 9,244

$ 9,244

9,244

9,244

9,244

9,244

9,244

9,244

$ 9,244

C000242615_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.41%

C000242615_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

11.30%

C000242615_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.77%

C000242615_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

9.10%

C000069437_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Emerging Markets Opportunities Fund</span>" id="sjs-J908">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Emerging Markets Opportunities Fund&lt;/span>

C000069437_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000069437_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

8,686

C000069437_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,643

C000069437_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,443

C000069437_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,600

C000069437_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

12,734

C000069437_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,474

C000069437_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

17,142

C000069437_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,086

C000069437_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,683

C000069437_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 15,977

15,977

15,977

15,977

15,977

15,977

15,977

15,977

$ 15,977

C000069437_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-J944">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000069437_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000069437_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

8,550

C000069437_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,346

C000069437_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,823

C000069437_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,347

C000069437_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,577

C000069437_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

12,535

C000069437_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,663

C000069437_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,115

C000069437_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,211

C000069437_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,051

14,051

$ 14,051

$ 14,051

14,051

14,051

14,051

$ 14,051

$ 14,051

C000069437_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.97%

C000069437_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.64%

C000069437_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.80%

C000234208_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-D989">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000234208_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234208_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,160

C000234208_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,780

7,780

$ 7,780

$ 7,780

7,780

7,780

7,780

$ 7,780

7,780

C000234208_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D1001">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000234208_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234208_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,669

C000234208_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,792

8,792

$ 8,792

8,792

8,792

8,792

8,792

8,792

8,792

C000234208_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D1013">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000234208_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234208_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,820

C000234208_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,966

8,966

$ 8,966

8,966

8,966

8,966

8,966

8,966

8,966

C000234208_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.60%

C000234208_ClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(1.14%)

C000234208_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.60%

C000234208_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(1.14%)

C000234208_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000234208_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.65%

C000235236_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® SAI Sustainable Emerging Markets Equity Fund</span>" id="sjs-D1043">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® SAI Sustainable Emerging Markets Equity Fund&lt;/span>

C000235236_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000235236_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,600

C000235236_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,644

8,644

$ 8,644

8,644

8,644

8,644

8,644

8,644

8,644

C000235236_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D1055">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000235236_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000235236_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,416

C000235236_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,227

8,227

$ 8,227

8,227

8,227

8,227

8,227

8,227

8,227

C000235236_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D1067">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000235236_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000235236_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,742

C000235236_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,581

8,581

$ 8,581

8,581

8,581

8,581

8,581

8,581

$ 8,581

C000235236_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.12%

C000235236_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

3.12%

C000235236_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000235236_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.21%

C000071914_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class A</span>" id="sjs-J1091">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A&lt;/span>

C000071914_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,425

C000071914_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,242

C000071914_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

7,915

C000071914_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,382

C000071914_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

9,377

C000071914_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,336

C000071914_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,553

C000071914_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,118

C000071914_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,170

C000071914_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,611

C000071914_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,384

16,384

16,384

16,384

16,384

16,384

16,384

16,384

$ 16,384

C000071914_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index</span>" id="sjs-J1127">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index&lt;/span>

C000071914_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071914_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,702

C000071914_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,581

C000071914_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,342

C000071914_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,510

C000071914_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,163

C000071914_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,673

C000071914_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,570

C000071914_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,259

C000071914_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,850

C000071914_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,721

15,721

15,721

15,721

15,721

15,721

15,721

15,721

$ 15,721

C000071914_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-J1163">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000071914_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071914_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,035

C000071914_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,284

C000071914_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,721

C000071914_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,703

C000071914_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,362

C000071914_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,121

C000071914_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,822

C000071914_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,723

C000071914_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,547

C000071914_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,710

$ 24,710

24,710

$ 24,710

24,710

24,710

24,710

$ 24,710

$ 24,710

C000071914_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.68%

C000071914_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.59%

C000071914_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.06%

C000071914_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.13%

C000071914_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.91%

C000071914_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.69%

C000071914_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.86%

C000071914_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.12%

C000071914_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.63%

C000242614_LG_ClassMember_2YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Sustainable Emerging Markets Fund</span>" id="sjs-C1226">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Sustainable Emerging Markets Fund&lt;/span>

C000242614_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,000

C000242614_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 9,620

$ 9,620

9,620

$ 9,620

9,620

9,620

9,620

$ 9,620

9,620

C000242614_LG_1_AdditionalIndexMember_2YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets ESG Focus Index</span>" id="sjs-C1235">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets ESG Focus Index&lt;/span>

C000242614_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,000

C000242614_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

9,561

$ 9,561

9,561

9,561

9,561

9,561

9,561

9,561

9,561

C000242614_LG_2_AdditionalIndexMember_2YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-C1244">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000242614_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,000

C000242614_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 9,509

$ 9,509

$ 9,509

9,509

9,509

9,509

9,509

9,509

9,509

C000242614_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.47%

C000242614_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

12.36%

C000242614_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.58%

C000242614_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

11.96%

C000234209_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-D1265">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000234209_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234209_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,210

C000234209_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,912

7,912

$ 7,912

7,912

7,912

7,912

7,912

7,912

7,912

C000234209_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D1277">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000234209_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234209_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,669

C000234209_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,792

8,792

$ 8,792

8,792

8,792

8,792

8,792

8,792

8,792

C000234209_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D1289">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000234209_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234209_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,820

C000234209_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,966

8,966

$ 8,966

8,966

8,966

8,966

8,966

8,966

8,966

C000234209_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.98%

C000234209_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(0.12%)

C000234209_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000234209_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.65%

C000234204_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D1313">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000234204_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234204_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,570

C000234204_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,452

7,452

$ 7,452

7,452

7,452

7,452

7,452

7,452

7,452

C000234204_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D1325">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000234204_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234204_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,534

C000234204_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

7,249

7,249

$ 7,249

7,249

7,249

7,249

7,249

7,249

7,249

C000234204_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D1337">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000234204_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234204_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,946

C000234204_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,699

7,699

$ 7,699

7,699

$ 7,699

7,699

7,699

7,699

7,699

C000234204_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.04%

C000234204_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(2.28%)

C000234204_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000234204_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(2.57%)

C000212505_LG_ClassMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Overseas Fund</span>" id="sjs-F1361">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Overseas Fund&lt;/span>

C000212505_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000212505_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,200

C000212505_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

10,660

C000212505_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

14,805

C000212505_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,562

C000212505_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,046

12,046

12,046

12,046

$ 12,046

12,046

12,046

12,046

12,046

C000212505_LG_1_AdditionalIndexMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-F1382">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000212505_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000212505_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,320

C000212505_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

9,630

C000212505_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,947

C000212505_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

9,989

C000212505_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 11,453

11,453

11,453

$ 11,453

$ 11,453

$ 11,453

11,453

11,453

11,453

C000212505_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.24%

C000212505_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.32%

C000212505_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

8.12%

C000205035_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-G1412">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000205035_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205035_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,003

C000205035_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,005

C000205035_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

8,286

C000205035_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,767

C000205035_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

15,796

C000205035_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,327

14,327

14,327

$ 14,327

14,327

$ 14,327

14,327

14,327

14,327

C000205035_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index</span>" id="sjs-G1436">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index&lt;/span>

C000205035_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205035_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,089

C000205035_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,789

C000205035_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

7,500

C000205035_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,735

C000205035_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,197

C000205035_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

12,843

12,843

12,843

12,843

12,843

$ 12,843

12,843

12,843

12,843

C000205035_LG_2_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-G1460">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000205035_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000205035_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,268

C000205035_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,478

C000205035_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

11,032

C000205035_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,191

C000205035_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,201

C000205035_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 13,531

13,531

$ 13,531

$ 13,531

13,531

$ 13,531

13,531

13,531

13,531

C000205035_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.62%

C000205035_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

12.37%

C000205035_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

8.18%

C000205035_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.86%

C000205035_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.12%

C000205035_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

5.18%

C000234203_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class I</span>" id="sjs-D1502">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I&lt;/span>

C000234203_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234203_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,570

C000234203_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,431

7,431

$ 7,431

$ 7,431

7,431

7,431

7,431

7,431

7,431

C000234203_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D1514">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000234203_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234203_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,534

C000234203_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

7,249

7,249

$ 7,249

7,249

7,249

7,249

7,249

7,249

7,249

C000234203_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D1526">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000234203_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234203_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,946

C000234203_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,699

7,699

$ 7,699

7,699

7,699

7,699

7,699

7,699

$ 7,699

C000234203_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.84%

C000234203_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(2.43%)

C000234203_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000234203_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(2.57%)

C000080862_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series International Growth Fund</span>" id="sjs-J1550">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series International Growth Fund&lt;/span>

C000080862_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080862_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,365

C000080862_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,044

C000080862_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,496

C000080862_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

11,894

C000080862_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,580

C000080862_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,949

C000080862_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

21,229

C000080862_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,432

C000080862_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

17,177

C000080862_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 21,687

21,687

21,687

21,687

21,687

21,687

21,687

21,687

$ 21,687

C000080862_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Growth Index</span>" id="sjs-J1586">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Growth Index&lt;/span>

C000080862_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080862_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,428

C000080862_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,108

C000080862_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,517

C000080862_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

11,783

C000080862_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

13,766

C000080862_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,502

C000080862_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

18,876

C000080862_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,312

C000080862_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,769

C000080862_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

18,234

18,234

18,234

18,234

18,234

18,234

18,234

18,234

$ 18,234

C000080862_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-J1622">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000080862_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080862_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,008

C000080862_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,705

C000080862_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,004

C000080862_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

11,206

C000080862_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

12,472

C000080862_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,638

C000080862_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,647

C000080862_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,073

C000080862_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,841

C000080862_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,059

17,059

17,059

$ 17,059

17,059

17,059

17,059

$ 17,059

$ 17,059

C000080862_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.26%

C000080862_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.27%

C000080862_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

8.05%

C000080862_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.46%

C000080862_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.78%

C000080862_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.19%

C000071916_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-J1676">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000071916_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071916_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,626

C000071916_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,272

C000071916_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,727

C000071916_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

9,661

C000071916_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,549

C000071916_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,679

C000071916_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,219

C000071916_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,172

C000071916_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,613

C000071916_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,386

16,386

16,386

$ 16,386

16,386

16,386

16,386

$ 16,386

$ 16,386

C000071916_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index</span>" id="sjs-J1712">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index&lt;/span>

C000071916_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071916_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,702

C000071916_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,581

C000071916_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,342

C000071916_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,510

C000071916_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,163

C000071916_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,673

C000071916_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,570

C000071916_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,259

C000071916_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,850

C000071916_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,721

15,721

15,721

15,721

15,721

15,721

15,721

15,721

$ 15,721

C000071916_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-J1748">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000071916_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071916_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,035

C000071916_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,284

C000071916_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,721

C000071916_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,703

C000071916_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,362

C000071916_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,121

C000071916_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,822

C000071916_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,723

C000071916_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,547

C000071916_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,710

24,710

24,710

$ 24,710

24,710

$ 24,710

24,710

$ 24,710

$ 24,710

C000071916_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.34%

C000071916_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.07%

C000071916_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.06%

C000071916_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.34%

C000071916_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.07%

C000071916_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.06%

C000071916_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.86%

C000071916_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.12%

C000071916_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.63%

C000203452_LG_ClassMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Emerging Markets Fund</span>" id="sjs-G1811">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Emerging Markets Fund&lt;/span>

C000203452_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000203452_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

8,870

C000203452_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,520

C000203452_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

9,916

C000203452_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,788

C000203452_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,482

C000203452_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,532

8,532

8,532

$ 8,532

8,532

$ 8,532

8,532

$ 8,532

8,532

C000203452_LG_1_AdditionalIndexMember_7YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-G1835">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000203452_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,000

C000203452_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

8,960

C000203452_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,026

C000203452_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

10,855

C000203452_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,697

C000203452_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

8,759

C000203452_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 9,709

9,709

$ 9,709

$ 9,709

9,709

$ 9,709

9,709

9,709

9,709

C000203452_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.61%

C000203452_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

2.23%

C000203452_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

1%

C000234210_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class Z</span>" id="sjs-D1868">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z&lt;/span>

C000234210_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234210_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,220

C000234210_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,932

7,932

$ 7,932

$ 7,932

7,932

7,932

7,932

7,932

7,932

C000234210_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D1880">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000234210_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234210_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,669

C000234210_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,792

8,792

$ 8,792

8,792

8,792

8,792

8,792

8,792

8,792

C000234210_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D1892">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000234210_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234210_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,820

C000234210_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,966

8,966

$ 8,966

8,966

8,966

8,966

8,966

8,966

8,966

C000234210_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

26.18%

C000234210_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

0.03%

C000234210_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000234210_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.65%

C000234202_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class C</span>" id="sjs-D1916">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C&lt;/span>

C000234202_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234202_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,520

C000234202_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,300

7,300

$ 7,300

7,300

7,300

7,300

7,300

7,300

7,300

C000234202_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D1928">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000234202_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234202_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,534

C000234202_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

7,249

7,249

$ 7,249

7,249

7,249

7,249

7,249

7,249

7,249

C000234202_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D1940">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000234202_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234202_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,946

C000234202_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,699

7,699

$ 7,699

7,699

7,699

7,699

7,699

7,699

7,699

C000234202_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.71%

C000234202_ClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(3.39%)

C000234202_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

24.71%

C000234202_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(3.39%)

C000234202_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000234202_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(2.57%)

C000234211_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Sustainable International Equity Fund</span>" id="sjs-D1970">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable International Equity Fund&lt;/span>

C000234211_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234211_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,210

C000234211_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,912

7,912

$ 7,912

7,912

7,912

7,912

7,912

7,912

7,912

C000234211_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D1982">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000234211_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234211_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,669

C000234211_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,792

8,792

$ 8,792

8,792

8,792

8,792

8,792

8,792

8,792

C000234211_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D1994">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000234211_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234211_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,820

C000234211_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,966

8,966

$ 8,966

8,966

8,966

8,966

8,966

8,966

$ 8,966

C000234211_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.98%

C000234211_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(0.12%)

C000234211_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000234211_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.65%

C000071917_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-J2018">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000071917_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

9,650

C000071917_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,392

C000071917_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,063

C000071917_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

9,522

C000071917_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

9,493

C000071917_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

9,427

C000071917_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,605

C000071917_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,164

C000071917_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,182

C000071917_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,579

C000071917_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,306

16,306

16,306

16,306

16,306

16,306

16,306

16,306

$ 16,306

C000071917_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index</span>" id="sjs-J2054">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Commodity Producers Sector Capped Index&lt;/span>

C000071917_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071917_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

7,702

C000071917_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

8,581

C000071917_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

10,342

C000071917_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,510

C000071917_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,163

C000071917_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,673

C000071917_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

13,570

C000071917_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,259

C000071917_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,850

C000071917_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,721

15,721

15,721

15,721

15,721

15,721

15,721

15,721

$ 15,721

C000071917_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-J2090">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000071917_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000071917_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,035

C000071917_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,284

C000071917_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,721

C000071917_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

12,703

C000071917_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,362

C000071917_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

15,121

C000071917_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

20,822

C000071917_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

16,723

C000071917_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

18,547

C000071917_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 24,710

24,710

$ 24,710

$ 24,710

24,710

24,710

24,710

$ 24,710

$ 24,710

C000071917_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.93%

C000071917_ClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

10.79%

C000071917_ClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.01%

C000071917_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.85%

C000071917_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

11.58%

C000071917_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.39%

C000071917_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.86%

C000071917_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.12%

C000071917_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.63%

C000234205_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Sustainable Emerging Markets Equity Fund</span>" id="sjs-D2153">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Emerging Markets Equity Fund&lt;/span>

C000234205_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234205_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,570

C000234205_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,431

7,431

$ 7,431

$ 7,431

7,431

7,431

7,431

$ 7,431

7,431

C000234205_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets (EM) ESG Leaders Index</span>" id="sjs-D2165">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets (EM) ESG Leaders Index&lt;/span>

C000234205_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234205_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,534

C000234205_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

7,249

7,249

$ 7,249

7,249

7,249

7,249

7,249

7,249

7,249

C000234205_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI Emerging Markets Index</span>" id="sjs-D2177">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index&lt;/span>

C000234205_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234205_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,946

C000234205_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,699

7,699

$ 7,699

7,699

7,699

7,699

7,699

7,699

7,699

C000234205_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.84%

C000234205_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(2.43%)

C000234205_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

28.51%

C000234205_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

(2.57%)

C000234207_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Class M</span>" id="sjs-D2201">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M&lt;/span>

C000234207_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

9,650

C000234207_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

6,938

C000234207_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 7,568

7,568

$ 7,568

7,568

7,568

7,568

7,568

7,568

7,568

C000234207_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE ESG Leaders</span>" id="sjs-D2213">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE ESG Leaders&lt;/span>

C000234207_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234207_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,669

C000234207_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

8,792

8,792

$ 8,792

8,792

8,792

8,792

8,792

8,792

8,792

C000234207_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D2225">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000234207_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000234207_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

7,820

C000234207_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 8,966

8,966

$ 8,966

8,966

8,966

8,966

8,966

8,966

$ 8,966

C000234207_ClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

21.02%

C000234207_ClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(1.90%)

C000234207_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.40%

C000234207_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

(0.61%)

C000234207_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

22.13%

C000234207_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

2.65%

C000080866_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series International Small Cap Fund</span>" id="sjs-J2255">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series International Small Cap Fund&lt;/span>

C000080866_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080866_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,836

C000080866_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

10,838

C000080866_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

13,642

C000080866_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,134

C000080866_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,811

C000080866_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

16,233

C000080866_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

22,499

C000080866_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

15,340

C000080866_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

16,348

C000080866_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 20,802

20,802

20,802

20,802

20,802

20,802

20,802

20,802

$ 20,802

C000080866_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Small Cap Index</span>" id="sjs-J2291">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Small Cap Index&lt;/span>

C000080866_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080866_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,855

C000080866_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

11,194

C000080866_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

14,295

C000080866_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

13,198

C000080866_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

14,385

C000080866_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

14,210

C000080866_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

19,320

C000080866_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

13,494

C000080866_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

14,394

C000080866_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

17,734

17,734

17,734

17,734

17,734

17,734

17,734

17,734

$ 17,734

C000080866_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-J2327">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000080866_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080866_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

10,008

C000080866_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,705

C000080866_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

12,004

C000080866_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

11,206

C000080866_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

12,472

C000080866_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,638

C000080866_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,647

C000080866_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,073

C000080866_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,841

C000080866_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,059

17,059

17,059

$ 17,059

17,059

17,059

17,059

$ 17,059

$ 17,059

C000080866_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

27.24%

C000080866_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.03%

C000080866_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

7.60%

C000080866_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.20%

C000080866_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.27%

C000080866_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.90%

C000080864_LG_ClassMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series International Value Fund</span>" id="sjs-J2381">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series International Value Fund&lt;/span>

C000080864_ClassMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080864_ClassMember_AsOf_2015Member

Account Value [Line Items]

Account Value

9,935

C000080864_ClassMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,489

C000080864_ClassMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,418

C000080864_ClassMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,492

C000080864_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,068

C000080864_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,679

C000080864_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

14,030

C000080864_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,728

C000080864_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,955

C000080864_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,471

17,471

17,471

$ 17,471

17,471

17,471

17,471

$ 17,471

$ 17,471

C000080864_LG_1_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Value Index</span>" id="sjs-J2417">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Value Index&lt;/span>

C000080864_1_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

10,000

C000080864_1_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

9,591

C000080864_1_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

9,294

C000080864_1_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

11,477

C000080864_1_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

10,621

C000080864_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

11,237

C000080864_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

9,189

C000080864_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

12,742

C000080864_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,687

C000080864_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,659

C000080864_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

15,588

15,588

15,588

15,588

15,588

15,588

15,588

15,588

$ 15,588

C000080864_LG_2_AdditionalIndexMember_11YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-J2453">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000080864_2_AdditionalIndexMember_AsOf_2014Member

Account Value [Line Items]

Account Value

$ 10,000

C000080864_2_AdditionalIndexMember_AsOf_2015Member

Account Value [Line Items]

Account Value

$ 10,008

C000080864_2_AdditionalIndexMember_AsOf_2016Member

Account Value [Line Items]

Account Value

$ 9,705

C000080864_2_AdditionalIndexMember_AsOf_2017Member

Account Value [Line Items]

Account Value

$ 12,004

C000080864_2_AdditionalIndexMember_AsOf_2018Member

Account Value [Line Items]

Account Value

$ 11,206

C000080864_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

12,472

C000080864_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

11,638

C000080864_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

15,647

C000080864_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

12,073

C000080864_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

13,841

C000080864_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 17,059

17,059

17,059

$ 17,059

$ 17,059

17,059

17,059

$ 17,059

$ 17,059

C000080864_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

25.19%

C000080864_NoLoadClassMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

9.56%

C000080864_NoLoadClassMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

5.74%

C000080864_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.14%

C000080864_0_AdditionalIndexMember_5YRMember

Account Value [Line Items]

Average Annual Return, Percent

6.76%

C000080864_0_AdditionalIndexMember_10YRMember

Account Value [Line Items]

Average Annual Return, Percent

4.54%

C000215141_LG_ClassMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Infrastructure Fund</span>" id="sjs-F2507">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Infrastructure Fund&lt;/span>

C000215141_ClassMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000215141_ClassMember_AsOf_2020Member

Account Value [Line Items]

Account Value

10,479

C000215141_ClassMember_AsOf_2021Member

Account Value [Line Items]

Account Value

12,780

C000215141_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,509

C000215141_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

11,229

C000215141_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 14,725

14,725

14,725

$ 14,725

$ 14,725

14,725

14,725

$ 14,725

14,725

C000215141_LG_1_AdditionalIndexMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

S&P® Global Infrastructure Index</span>" id="sjs-F2528">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P® Global Infrastructure Index&lt;/span>

C000215141_1_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

10,000

C000215141_1_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

8,403

C000215141_1_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

10,830

C000215141_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,324

C000215141_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,189

C000215141_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

13,577

13,577

13,577

13,577

$ 13,577

13,577

13,577

13,577

13,577

C000215141_LG_2_AdditionalIndexMember_6YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI ACWI (All Country World Index) Index</span>" id="sjs-F2549">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index&lt;/span>

C000215141_2_AdditionalIndexMember_AsOf_2019Member

Account Value [Line Items]

Account Value

$ 10,000

C000215141_2_AdditionalIndexMember_AsOf_2020Member

Account Value [Line Items]

Account Value

$ 10,388

C000215141_2_AdditionalIndexMember_AsOf_2021Member

Account Value [Line Items]

Account Value

$ 14,305

C000215141_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

11,489

C000215141_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

12,742

C000215141_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 16,976

16,976

$ 16,976

16,976

$ 16,976

16,976

16,976

16,976

16,976

C000215141_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

31.13%

C000215141_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

8.06%

C000215141_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

33.26%

C000215141_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

6.32%

C000238445_LG_ClassMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

Fidelity® Series Select International Small Cap Fund</span>" id="sjs-D2582">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Series Select International Small Cap Fund&lt;/span>

C000238445_ClassMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000238445_ClassMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,803

C000238445_ClassMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 12,809

12,809

$ 12,809

12,809

12,809

12,809

12,809

12,809

12,809

C000238445_LG_1_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Small Cap Index</span>" id="sjs-D2594">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Small Cap Index&lt;/span>

C000238445_1_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

10,000

C000238445_1_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

10,593

C000238445_1_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

13,051

13,051

$ 13,051

13,051

13,051

13,051

13,051

13,051

13,051

C000238445_LG_2_AdditionalIndexMember_3YRMember

Account Value [Line Items]

Line Graph and Table Measure Name

MSCI EAFE Index</span>" id="sjs-D2606">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index&lt;/span>

C000238445_2_AdditionalIndexMember_AsOf_2022Member

Account Value [Line Items]

Account Value

$ 10,000

C000238445_2_AdditionalIndexMember_AsOf_2023Member

Account Value [Line Items]

Account Value

$ 11,332

C000238445_2_AdditionalIndexMember_AsOf_2024Member

Account Value [Line Items]

Account Value

$ 13,967

$ 13,967

$ 13,967

$ 13,967

$ 13,967

$ 13,967

$ 13,967

$ 13,967

$ 13,967

C000238445_NoLoadClassMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

18.56%

C000238445_NoLoadClassMember_2023-11-01_2024-10-31Member

Account Value [Line Items]

Average Annual Return, Percent

13.23%

C000238445_0_AdditionalIndexMember_1YRMember

Account Value [Line Items]

Average Annual Return, Percent

23.20%

C000238445_0_AdditionalIndexMember_LOCMember

Account Value [Line Items]

Average Annual Return, Percent

14.30%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Oct. 31, 2024
Fidelity Advisor Sustainable International Equity Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable International Equity Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Sustainable International Equity Fund - Class A | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.60%
Fidelity Advisor Sustainable International Equity Fund - Class A | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable International Equity Fund - Class A | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Advisor Sustainable International Equity Fund - Class A | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Sustainable International Equity Fund - Class A | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class A | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Advisor Sustainable International Equity Fund - Class A | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11%
Fidelity Advisor Sustainable International Equity Fund - Class A | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Sustainable International Equity Fund - Class A | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Sustainable International Equity Fund - Class A | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable International Equity Fund - Class A | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class A | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.10%
Fidelity Advisor Sustainable International Equity Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable International Equity Fund - Class A | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Advisor Sustainable International Equity Fund - Class A | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.40%
Fidelity Advisor Sustainable International Equity Fund - Class A | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Advisor Sustainable International Equity Fund - Class A | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable International Equity Fund - Class A | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Sustainable International Equity Fund - Class A | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable International Equity Fund - Class A | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Sustainable International Equity Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.50%
Fidelity Advisor Sustainable International Equity Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity SAI Sustainable International Equity Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity SAI Sustainable International Equity Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity SAI Sustainable International Equity Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity SAI Sustainable International Equity Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity SAI Sustainable International Equity Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity SAI Sustainable International Equity Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity SAI Sustainable International Equity Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity SAI Sustainable International Equity Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity SAI Sustainable International Equity Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity SAI Sustainable International Equity Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity SAI Sustainable International Equity Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.40%
Fidelity SAI Sustainable International Equity Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	8.70%
Fidelity SAI Sustainable International Equity Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	12.80%
Fidelity SAI Sustainable International Equity Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity SAI Sustainable International Equity Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.60%
Fidelity SAI Sustainable International Equity Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.60%
Fidelity SAI Sustainable International Equity Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Fidelity SAI Sustainable International Equity Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity SAI Sustainable International Equity Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity SAI Sustainable International Equity Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity SAI Sustainable International Equity Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.60%
Fidelity SAI Sustainable International Equity Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14%
Fidelity SAI Sustainable International Equity Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	11.20%
Fidelity SAI Sustainable International Equity Fund | France
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity SAI Sustainable International Equity Fund | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity SAI Sustainable International Equity Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity SAI Sustainable International Equity Fund | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity SAI Sustainable International Equity Fund | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity SAI Sustainable International Equity Fund | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity SAI Sustainable International Equity Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16%
Fidelity SAI Sustainable International Equity Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity SAI Sustainable International Equity Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity SAI International SMA Completion Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity SAI International SMA Completion Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity SAI International SMA Completion Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity SAI International SMA Completion Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity SAI International SMA Completion Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.10%
Fidelity SAI International SMA Completion Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity SAI International SMA Completion Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity SAI International SMA Completion Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity SAI International SMA Completion Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity SAI International SMA Completion Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity SAI International SMA Completion Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	20.10%
Fidelity SAI International SMA Completion Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity SAI International SMA Completion Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity SAI International SMA Completion Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity SAI International SMA Completion Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	33.50%
Fidelity SAI International SMA Completion Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity SAI International SMA Completion Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity SAI International SMA Completion Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity SAI International SMA Completion Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity SAI International SMA Completion Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity SAI International SMA Completion Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity SAI International SMA Completion Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Fidelity SAI International SMA Completion Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	8.80%
Fidelity SAI International SMA Completion Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity SAI International SMA Completion Fund | Australia
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity SAI International SMA Completion Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity SAI International SMA Completion Fund | Sweden
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity SAI International SMA Completion Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	9.90%
Fidelity SAI International SMA Completion Fund | India
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity SAI International SMA Completion Fund | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity SAI International SMA Completion Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.70%
Fidelity SAI International SMA Completion Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Series Canada Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	5.60%
Fidelity Series Canada Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Series Canada Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity Series Canada Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Series Canada Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Series Canada Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Series Canada Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series Canada Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series Canada Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series Canada Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Series Canada Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	30.30%
Fidelity Series Canada Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Series Canada Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Series Canada Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	12.30%
Fidelity Series Canada Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Series Canada Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Series Canada Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	8.70%
Fidelity Series Canada Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Canada Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	17.90%
Fidelity Series Canada Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Series Canada Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	94.20%
Fidelity Series Canada Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Series Canada Fund | Chile
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Series Canada Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.60%
Fidelity Series Canada Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Series Canada Fund | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Series Canada Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0%
Fidelity Enduring Opportunities Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Enduring Opportunities Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Enduring Opportunities Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Enduring Opportunities Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Enduring Opportunities Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Enduring Opportunities Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Enduring Opportunities Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.40%
Fidelity Enduring Opportunities Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Enduring Opportunities Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Enduring Opportunities Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Enduring Opportunities Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	11.90%
Fidelity Enduring Opportunities Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	22.60%
Fidelity Enduring Opportunities Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Enduring Opportunities Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	4.70%
Fidelity Enduring Opportunities Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Fidelity Enduring Opportunities Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Enduring Opportunities Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Enduring Opportunities Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Enduring Opportunities Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	8.80%
Fidelity Enduring Opportunities Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Enduring Opportunities Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Enduring Opportunities Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Enduring Opportunities Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Enduring Opportunities Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	66%
Fidelity Enduring Opportunities Fund | Italy
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Enduring Opportunities Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	12.80%
Fidelity Enduring Opportunities Fund | Sweden
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Enduring Opportunities Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Enduring Opportunities Fund | India
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Enduring Opportunities Fund | China
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Enduring Opportunities Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Enduring Opportunities Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.10%
Fidelity Enduring Opportunities Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.60%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | India
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | China
Holdings [Line Items]
Percent of Net Asset Value	30.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.60%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | India
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | China
Holdings [Line Items]
Percent of Net Asset Value	30.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	30.10%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Global Commodity Stock Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	46.10%
Fidelity Advisor Global Commodity Stock Fund - Class I | Australia
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Commodity Stock Fund - Class I | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Commodity Stock Fund - Class I | Canada
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity Advisor Global Commodity Stock Fund - Class I | India
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Global Commodity Stock Fund - Class I | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Commodity Stock Fund - Class I | South Africa
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | Finland
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Global Commodity Stock Fund - Class I | Zambia
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Global Commodity Stock Fund - Class I | Norway
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Commodity Stock Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.20%
Fidelity Advisor Global Commodity Stock Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Global Commodity Stock Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Global Commodity Stock Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Global Commodity Stock Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Global Commodity Stock Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Global Commodity Stock Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Global Commodity Stock Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Global Commodity Stock Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Global Commodity Stock Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Global Commodity Stock Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Global Commodity Stock Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Global Commodity Stock Fund | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35.20%
Fidelity Global Commodity Stock Fund | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	30.10%
Fidelity Global Commodity Stock Fund | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Global Commodity Stock Fund | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Global Commodity Stock Fund | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Global Commodity Stock Fund | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Global Commodity Stock Fund | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Global Commodity Stock Fund | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Global Commodity Stock Fund | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Global Commodity Stock Fund | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Global Commodity Stock Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	46.10%
Fidelity Global Commodity Stock Fund | Australia
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Global Commodity Stock Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Global Commodity Stock Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity Global Commodity Stock Fund | India
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Global Commodity Stock Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Global Commodity Stock Fund | South Africa
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Global Commodity Stock Fund | Finland
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Global Commodity Stock Fund | Zambia
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Global Commodity Stock Fund | Norway
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Global Commodity Stock Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.20%
Fidelity Global Commodity Stock Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	23.40%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	12.70%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	6.90%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	22.60%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	8.50%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	15.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	16.90%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | France
Holdings [Line Items]
Percent of Net Asset Value	7.90%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Sweden
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	12%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	93.70%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Series Sustainable Non-U.S. Developed Markets Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Series Emerging Markets Opportunities Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	11.70%
Fidelity Series Emerging Markets Opportunities Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity Series Emerging Markets Opportunities Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Series Emerging Markets Opportunities Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Series Emerging Markets Opportunities Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Series Emerging Markets Opportunities Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Series Emerging Markets Opportunities Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Series Emerging Markets Opportunities Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Series Emerging Markets Opportunities Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Series Emerging Markets Opportunities Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Series Emerging Markets Opportunities Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	21.90%
Fidelity Series Emerging Markets Opportunities Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	22.90%
Fidelity Series Emerging Markets Opportunities Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Emerging Markets Opportunities Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Series Emerging Markets Opportunities Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Series Emerging Markets Opportunities Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Series Emerging Markets Opportunities Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	15.60%
Fidelity Series Emerging Markets Opportunities Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity Series Emerging Markets Opportunities Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.30%
Fidelity Series Emerging Markets Opportunities Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Series Emerging Markets Opportunities Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Emerging Markets Opportunities Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Emerging Markets Opportunities Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Series Emerging Markets Opportunities Fund | India
Holdings [Line Items]
Percent of Net Asset Value	17%
Fidelity Series Emerging Markets Opportunities Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Series Emerging Markets Opportunities Fund | China
Holdings [Line Items]
Percent of Net Asset Value	31.10%
Fidelity Series Emerging Markets Opportunities Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	17.80%
Fidelity Series Emerging Markets Opportunities Fund | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Series Emerging Markets Opportunities Fund | South Africa
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series Emerging Markets Opportunities Fund | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Emerging Markets Opportunities Fund | Saudi Arabia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Series Emerging Markets Opportunities Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	98%
Fidelity Series Emerging Markets Opportunities Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Series Emerging Markets Opportunities Fund | AABondsMember
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Series Emerging Markets Opportunities Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable International Equity Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Sustainable International Equity Fund - Class C | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.60%
Fidelity Advisor Sustainable International Equity Fund - Class C | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable International Equity Fund - Class C | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Advisor Sustainable International Equity Fund - Class C | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Sustainable International Equity Fund - Class C | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class C | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Advisor Sustainable International Equity Fund - Class C | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11%
Fidelity Advisor Sustainable International Equity Fund - Class C | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Sustainable International Equity Fund - Class C | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Sustainable International Equity Fund - Class C | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable International Equity Fund - Class C | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class C | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.10%
Fidelity Advisor Sustainable International Equity Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable International Equity Fund - Class C | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Advisor Sustainable International Equity Fund - Class C | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.40%
Fidelity Advisor Sustainable International Equity Fund - Class C | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Advisor Sustainable International Equity Fund - Class C | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable International Equity Fund - Class C | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Sustainable International Equity Fund - Class C | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable International Equity Fund - Class C | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Sustainable International Equity Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.50%
Fidelity Advisor Sustainable International Equity Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity SAI Sustainable Emerging Markets Equity Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity SAI Sustainable Emerging Markets Equity Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.50%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.50%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	8.90%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity SAI Sustainable Emerging Markets Equity Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity SAI Sustainable Emerging Markets Equity Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	8.70%
Fidelity SAI Sustainable Emerging Markets Equity Fund | India
Holdings [Line Items]
Percent of Net Asset Value	13.20%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity SAI Sustainable Emerging Markets Equity Fund | China
Holdings [Line Items]
Percent of Net Asset Value	31.10%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity SAI Sustainable Emerging Markets Equity Fund | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity SAI Sustainable Emerging Markets Equity Fund | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity SAI Sustainable Emerging Markets Equity Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.70%
Fidelity SAI Sustainable Emerging Markets Equity Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	30.10%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Global Commodity Stock Fund - Class A | United States
Holdings [Line Items]
Percent of Net Asset Value	46.10%
Fidelity Advisor Global Commodity Stock Fund - Class A | Australia
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Commodity Stock Fund - Class A | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Commodity Stock Fund - Class A | Canada
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity Advisor Global Commodity Stock Fund - Class A | India
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Global Commodity Stock Fund - Class A | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Commodity Stock Fund - Class A | South Africa
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | Finland
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Global Commodity Stock Fund - Class A | Zambia
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Global Commodity Stock Fund - Class A | Norway
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Commodity Stock Fund - Class A | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.20%
Fidelity Advisor Global Commodity Stock Fund - Class A | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Series Sustainable Emerging Markets Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	12.10%
Fidelity Series Sustainable Emerging Markets Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Series Sustainable Emerging Markets Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Series Sustainable Emerging Markets Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Sustainable Emerging Markets Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Series Sustainable Emerging Markets Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Series Sustainable Emerging Markets Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series Sustainable Emerging Markets Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Sustainable Emerging Markets Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Sustainable Emerging Markets Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Series Sustainable Emerging Markets Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	23.20%
Fidelity Series Sustainable Emerging Markets Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	22.90%
Fidelity Series Sustainable Emerging Markets Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Sustainable Emerging Markets Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Series Sustainable Emerging Markets Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Series Sustainable Emerging Markets Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Series Sustainable Emerging Markets Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	15.80%
Fidelity Series Sustainable Emerging Markets Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Series Sustainable Emerging Markets Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	7.40%
Fidelity Series Sustainable Emerging Markets Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Series Sustainable Emerging Markets Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Sustainable Emerging Markets Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	7.60%
Fidelity Series Sustainable Emerging Markets Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Series Sustainable Emerging Markets Fund | India
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Series Sustainable Emerging Markets Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Series Sustainable Emerging Markets Fund | China
Holdings [Line Items]
Percent of Net Asset Value	28.80%
Fidelity Series Sustainable Emerging Markets Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	17.50%
Fidelity Series Sustainable Emerging Markets Fund | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	8.10%
Fidelity Series Sustainable Emerging Markets Fund | South Africa
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series Sustainable Emerging Markets Fund | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series Sustainable Emerging Markets Fund | Saudi Arabia
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Series Sustainable Emerging Markets Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	92.60%
Fidelity Series Sustainable Emerging Markets Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Series Sustainable Emerging Markets Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable International Equity Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Sustainable International Equity Fund - Class I | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.60%
Fidelity Advisor Sustainable International Equity Fund - Class I | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable International Equity Fund - Class I | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Advisor Sustainable International Equity Fund - Class I | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Sustainable International Equity Fund - Class I | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class I | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Advisor Sustainable International Equity Fund - Class I | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11%
Fidelity Advisor Sustainable International Equity Fund - Class I | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Sustainable International Equity Fund - Class I | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Sustainable International Equity Fund - Class I | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable International Equity Fund - Class I | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class I | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.10%
Fidelity Advisor Sustainable International Equity Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable International Equity Fund - Class I | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Advisor Sustainable International Equity Fund - Class I | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.40%
Fidelity Advisor Sustainable International Equity Fund - Class I | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Advisor Sustainable International Equity Fund - Class I | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable International Equity Fund - Class I | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Sustainable International Equity Fund - Class I | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable International Equity Fund - Class I | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Sustainable International Equity Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.50%
Fidelity Advisor Sustainable International Equity Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.60%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | India
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | China
Holdings [Line Items]
Percent of Net Asset Value	30.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series Overseas Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Series Overseas Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Overseas Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Overseas Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series Overseas Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series Overseas Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series Overseas Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series Overseas Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Overseas Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Overseas Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Series Overseas Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	23%
Fidelity Series Overseas Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	16.30%
Fidelity Series Overseas Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13.40%
Fidelity Series Overseas Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	25.90%
Fidelity Series Overseas Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Series Overseas Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Series Overseas Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series Overseas Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.40%
Fidelity Series Overseas Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	15.70%
Fidelity Series Overseas Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	17.90%
Fidelity Series Overseas Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	18.50%
Fidelity Series Overseas Fund | France
Holdings [Line Items]
Percent of Net Asset Value	11.40%
Fidelity Series Overseas Fund | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Series Overseas Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Series Overseas Fund | Denmark
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Series Overseas Fund | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Series Overseas Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9.90%
Fidelity Series Overseas Fund | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Series Overseas Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.40%
Fidelity Series Overseas Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	30.10%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Global Commodity Stock Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	46.10%
Fidelity Advisor Global Commodity Stock Fund - Class Z | Australia
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Commodity Stock Fund - Class Z | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Commodity Stock Fund - Class Z | Canada
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity Advisor Global Commodity Stock Fund - Class Z | India
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Global Commodity Stock Fund - Class Z | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Commodity Stock Fund - Class Z | South Africa
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | Finland
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Global Commodity Stock Fund - Class Z | Zambia
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Global Commodity Stock Fund - Class Z | Norway
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Commodity Stock Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.20%
Fidelity Advisor Global Commodity Stock Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.60%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | United States
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | India
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | China
Holdings [Line Items]
Percent of Net Asset Value	30.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class I | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series International Growth Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity Series International Growth Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Series International Growth Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Series International Growth Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4%
Fidelity Series International Growth Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series International Growth Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series International Growth Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Series International Growth Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series International Growth Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series International Growth Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Series International Growth Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Series International Growth Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	20%
Fidelity Series International Growth Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Series International Growth Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	32.30%
Fidelity Series International Growth Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Series International Growth Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	10.40%
Fidelity Series International Growth Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Series International Growth Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Series International Growth Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Series International Growth Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	9.90%
Fidelity Series International Growth Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	11.80%
Fidelity Series International Growth Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	28.10%
Fidelity Series International Growth Fund | France
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Fidelity Series International Growth Fund | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Series International Growth Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Series International Growth Fund | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Series International Growth Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9.90%
Fidelity Series International Growth Fund | Sweden
Holdings [Line Items]
Percent of Net Asset Value	7.50%
Fidelity Series International Growth Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series International Growth Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.80%
Fidelity Series International Growth Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Series International Growth Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.30%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	30.10%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Global Commodity Stock Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	46.10%
Fidelity Advisor Global Commodity Stock Fund - Class C | Australia
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Commodity Stock Fund - Class C | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Commodity Stock Fund - Class C | Canada
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity Advisor Global Commodity Stock Fund - Class C | India
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Global Commodity Stock Fund - Class C | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Commodity Stock Fund - Class C | South Africa
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | Finland
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Global Commodity Stock Fund - Class C | Zambia
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Global Commodity Stock Fund - Class C | Norway
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Commodity Stock Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.20%
Fidelity Advisor Global Commodity Stock Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Series Emerging Markets Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.70%
Fidelity Series Emerging Markets Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.50%
Fidelity Series Emerging Markets Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Series Emerging Markets Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series Emerging Markets Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series Emerging Markets Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Series Emerging Markets Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Series Emerging Markets Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Series Emerging Markets Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Series Emerging Markets Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Series Emerging Markets Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	22.80%
Fidelity Series Emerging Markets Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	23.60%
Fidelity Series Emerging Markets Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Series Emerging Markets Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Series Emerging Markets Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.40%
Fidelity Series Emerging Markets Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Series Emerging Markets Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Series Emerging Markets Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Fidelity Series Emerging Markets Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Series Emerging Markets Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Series Emerging Markets Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Series Emerging Markets Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Series Emerging Markets Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Series Emerging Markets Fund | India
Holdings [Line Items]
Percent of Net Asset Value	15.50%
Fidelity Series Emerging Markets Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Fidelity Series Emerging Markets Fund | China
Holdings [Line Items]
Percent of Net Asset Value	28.80%
Fidelity Series Emerging Markets Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.10%
Fidelity Series Emerging Markets Fund | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Series Emerging Markets Fund | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Series Emerging Markets Fund | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series Emerging Markets Fund | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Series Emerging Markets Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	94.80%
Fidelity Series Emerging Markets Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable International Equity Fund - Class Z | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Sustainable International Equity Fund - Class Z | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.60%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class Z | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.10%
Fidelity Advisor Sustainable International Equity Fund - Class Z | United States
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable International Equity Fund - Class Z | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.40%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Sustainable International Equity Fund - Class Z | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable International Equity Fund - Class Z | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Sustainable International Equity Fund - Class Z | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.50%
Fidelity Advisor Sustainable International Equity Fund - Class Z | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.60%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | United States
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | India
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | China
Holdings [Line Items]
Percent of Net Asset Value	30.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Advisor Sustainable Emerging Markets Equity Fund - Class C | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Sustainable International Equity Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Sustainable International Equity Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Sustainable International Equity Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Sustainable International Equity Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Sustainable International Equity Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Sustainable International Equity Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Sustainable International Equity Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Sustainable International Equity Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Sustainable International Equity Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Sustainable International Equity Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Sustainable International Equity Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.60%
Fidelity Sustainable International Equity Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Sustainable International Equity Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Sustainable International Equity Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Sustainable International Equity Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Sustainable International Equity Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Sustainable International Equity Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11%
Fidelity Sustainable International Equity Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Sustainable International Equity Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Sustainable International Equity Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Sustainable International Equity Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Sustainable International Equity Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.10%
Fidelity Sustainable International Equity Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Sustainable International Equity Fund | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Sustainable International Equity Fund | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.40%
Fidelity Sustainable International Equity Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Sustainable International Equity Fund | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Sustainable International Equity Fund | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Sustainable International Equity Fund | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Sustainable International Equity Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Sustainable International Equity Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.50%
Fidelity Sustainable International Equity Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	7%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	5.80%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI0Member
Holdings [Line Items]
Percent of Net Asset Value	35.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI1Member
Holdings [Line Items]
Percent of Net Asset Value	30.10%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI2Member
Holdings [Line Items]
Percent of Net Asset Value	10.30%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI3Member
Holdings [Line Items]
Percent of Net Asset Value	10.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI4Member
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI5Member
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI6Member
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI7Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI8Member
Holdings [Line Items]
Percent of Net Asset Value	0.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | TI9Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Advisor Global Commodity Stock Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	46.10%
Fidelity Advisor Global Commodity Stock Fund - Class M | Australia
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Global Commodity Stock Fund - Class M | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Advisor Global Commodity Stock Fund - Class M | Canada
Holdings [Line Items]
Percent of Net Asset Value	24.70%
Fidelity Advisor Global Commodity Stock Fund - Class M | India
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Advisor Global Commodity Stock Fund - Class M | Brazil
Holdings [Line Items]
Percent of Net Asset Value	7.10%
Fidelity Advisor Global Commodity Stock Fund - Class M | South Africa
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | Finland
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Global Commodity Stock Fund - Class M | Zambia
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Global Commodity Stock Fund - Class M | Norway
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Advisor Global Commodity Stock Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	99.20%
Fidelity Advisor Global Commodity Stock Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Sustainable Emerging Markets Equity Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Sustainable Emerging Markets Equity Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Sustainable Emerging Markets Equity Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Sustainable Emerging Markets Equity Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Fidelity Sustainable Emerging Markets Equity Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Sustainable Emerging Markets Equity Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	1.90%
Fidelity Sustainable Emerging Markets Equity Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	1.80%
Fidelity Sustainable Emerging Markets Equity Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Sustainable Emerging Markets Equity Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Sustainable Emerging Markets Equity Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.70%
Fidelity Sustainable Emerging Markets Equity Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	24.80%
Fidelity Sustainable Emerging Markets Equity Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	24.60%
Fidelity Sustainable Emerging Markets Equity Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Sustainable Emerging Markets Equity Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Sustainable Emerging Markets Equity Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Sustainable Emerging Markets Equity Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Sustainable Emerging Markets Equity Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	17.30%
Fidelity Sustainable Emerging Markets Equity Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Sustainable Emerging Markets Equity Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.10%
Fidelity Sustainable Emerging Markets Equity Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Sustainable Emerging Markets Equity Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Sustainable Emerging Markets Equity Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Sustainable Emerging Markets Equity Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Sustainable Emerging Markets Equity Fund | India
Holdings [Line Items]
Percent of Net Asset Value	13.30%
Fidelity Sustainable Emerging Markets Equity Fund | Brazil
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Sustainable Emerging Markets Equity Fund | China
Holdings [Line Items]
Percent of Net Asset Value	30.90%
Fidelity Sustainable Emerging Markets Equity Fund | Taiwan
Holdings [Line Items]
Percent of Net Asset Value	15.90%
Fidelity Sustainable Emerging Markets Equity Fund | Korea, Republic of
Holdings [Line Items]
Percent of Net Asset Value	9.70%
Fidelity Sustainable Emerging Markets Equity Fund | South Africa
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Sustainable Emerging Markets Equity Fund | Mexico
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Sustainable Emerging Markets Equity Fund | Indonesia
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Sustainable Emerging Markets Equity Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.10%
Fidelity Sustainable Emerging Markets Equity Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Advisor Sustainable International Equity Fund - Class M | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Advisor Sustainable International Equity Fund - Class M | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	25.60%
Fidelity Advisor Sustainable International Equity Fund - Class M | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	9%
Fidelity Advisor Sustainable International Equity Fund - Class M | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Advisor Sustainable International Equity Fund - Class M | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Advisor Sustainable International Equity Fund - Class M | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class M | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Advisor Sustainable International Equity Fund - Class M | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11%
Fidelity Advisor Sustainable International Equity Fund - Class M | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.50%
Fidelity Advisor Sustainable International Equity Fund - Class M | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Advisor Sustainable International Equity Fund - Class M | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Advisor Sustainable International Equity Fund - Class M | Japan
Holdings [Line Items]
Percent of Net Asset Value	21.70%
Fidelity Advisor Sustainable International Equity Fund - Class M | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.10%
Fidelity Advisor Sustainable International Equity Fund - Class M | United States
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Fidelity Advisor Sustainable International Equity Fund - Class M | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Advisor Sustainable International Equity Fund - Class M | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	8.40%
Fidelity Advisor Sustainable International Equity Fund - Class M | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.70%
Fidelity Advisor Sustainable International Equity Fund - Class M | Denmark
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Advisor Sustainable International Equity Fund - Class M | Italy
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Advisor Sustainable International Equity Fund - Class M | Australia
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Advisor Sustainable International Equity Fund - Class M | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	16.20%
Fidelity Advisor Sustainable International Equity Fund - Class M | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	97.50%
Fidelity Advisor Sustainable International Equity Fund - Class M | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.50%
Fidelity Series International Small Cap Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series International Small Cap Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Series International Small Cap Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series International Small Cap Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Series International Small Cap Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series International Small Cap Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series International Small Cap Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series International Small Cap Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Series International Small Cap Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Series International Small Cap Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	1.50%
Fidelity Series International Small Cap Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Series International Small Cap Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Series International Small Cap Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity Series International Small Cap Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	3.20%
Fidelity Series International Small Cap Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	30%
Fidelity Series International Small Cap Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.30%
Fidelity Series International Small Cap Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Fidelity Series International Small Cap Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Series International Small Cap Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	7.90%
Fidelity Series International Small Cap Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series International Small Cap Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.10%
Fidelity Series International Small Cap Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	27.80%
Fidelity Series International Small Cap Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	16%
Fidelity Series International Small Cap Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	6%
Fidelity Series International Small Cap Fund | France
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series International Small Cap Fund | Netherlands
Holdings [Line Items]
Percent of Net Asset Value	5.30%
Fidelity Series International Small Cap Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	6.90%
Fidelity Series International Small Cap Fund | Italy
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Series International Small Cap Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	15.50%
Fidelity Series International Small Cap Fund | Sweden
Holdings [Line Items]
Percent of Net Asset Value	12.50%
Fidelity Series International Small Cap Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series International Small Cap Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.70%
Fidelity Series International Small Cap Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.90%
Fidelity Series International Small Cap Fund | AAInternationalEquityFundsMember
Holdings [Line Items]
Percent of Net Asset Value	0.40%
Fidelity Series International Value Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Series International Value Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Series International Value Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	2.40%
Fidelity Series International Value Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	2.30%
Fidelity Series International Value Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series International Value Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	2.20%
Fidelity Series International Value Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series International Value Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series International Value Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Series International Value Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2%
Fidelity Series International Value Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	35%
Fidelity Series International Value Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Series International Value Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Series International Value Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Series International Value Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	18.10%
Fidelity Series International Value Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	13%
Fidelity Series International Value Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Series International Value Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.90%
Fidelity Series International Value Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series International Value Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	8.30%
Fidelity Series International Value Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	0.60%
Fidelity Series International Value Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	22.60%
Fidelity Series International Value Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	14.70%
Fidelity Series International Value Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	13.10%
Fidelity Series International Value Fund | France
Holdings [Line Items]
Percent of Net Asset Value	9.80%
Fidelity Series International Value Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	11.60%
Fidelity Series International Value Fund | Italy
Holdings [Line Items]
Percent of Net Asset Value	5%
Fidelity Series International Value Fund | Australia
Holdings [Line Items]
Percent of Net Asset Value	6.10%
Fidelity Series International Value Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	10.40%
Fidelity Series International Value Fund | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series International Value Fund | Spain
Holdings [Line Items]
Percent of Net Asset Value	3.40%
Fidelity Series International Value Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.50%
Fidelity Series International Value Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	3%
Fidelity Series International Value Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.50%
Fidelity Infrastructure Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	6.60%
Fidelity Infrastructure Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	6.20%
Fidelity Infrastructure Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	5.90%
Fidelity Infrastructure Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	5.20%
Fidelity Infrastructure Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	4.80%
Fidelity Infrastructure Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Infrastructure Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Infrastructure Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	3.70%
Fidelity Infrastructure Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Infrastructure Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	2.70%
Fidelity Infrastructure Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Infrastructure Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	11.20%
Fidelity Infrastructure Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	26.70%
Fidelity Infrastructure Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Infrastructure Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	17.90%
Fidelity Infrastructure Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	29.50%
Fidelity Infrastructure Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	5.10%
Fidelity Infrastructure Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	80.60%
Fidelity Infrastructure Fund | Canada
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Fidelity Infrastructure Fund | China
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Infrastructure Fund | Mexico
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Infrastructure Fund | Spain
Holdings [Line Items]
Percent of Net Asset Value	8.70%
Fidelity Infrastructure Fund | Tanzania, United Republic of
Holdings [Line Items]
Percent of Net Asset Value	0.70%
Fidelity Infrastructure Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	95.60%
Fidelity Infrastructure Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	4.40%
Fidelity Series Select International Small Cap Fund | TH0Member
Holdings [Line Items]
Percent of Net Asset Value	1.20%
Fidelity Series Select International Small Cap Fund | TH1Member
Holdings [Line Items]
Percent of Net Asset Value	1.10%
Fidelity Series Select International Small Cap Fund | TH2Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Series Select International Small Cap Fund | TH3Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Series Select International Small Cap Fund | TH4Member
Holdings [Line Items]
Percent of Net Asset Value	1%
Fidelity Series Select International Small Cap Fund | TH5Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Series Select International Small Cap Fund | TH6Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Series Select International Small Cap Fund | TH7Member
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Fidelity Series Select International Small Cap Fund | TH8Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Series Select International Small Cap Fund | TH9Member
Holdings [Line Items]
Percent of Net Asset Value	0.80%
Fidelity Series Select International Small Cap Fund | MSFinancialsSectorMember
Holdings [Line Items]
Percent of Net Asset Value	11.40%
Fidelity Series Select International Small Cap Fund | Information Technology Member
Holdings [Line Items]
Percent of Net Asset Value	8.20%
Fidelity Series Select International Small Cap Fund | Healthcare Sector
Holdings [Line Items]
Percent of Net Asset Value	6.50%
Fidelity Series Select International Small Cap Fund | Real Estate Sector
Holdings [Line Items]
Percent of Net Asset Value	8.50%
Fidelity Series Select International Small Cap Fund | Industrial Sector Member
Holdings [Line Items]
Percent of Net Asset Value	26.40%
Fidelity Series Select International Small Cap Fund | Materials Sector Member
Holdings [Line Items]
Percent of Net Asset Value	9.60%
Fidelity Series Select International Small Cap Fund | Consumer Discretionary Sector Member
Holdings [Line Items]
Percent of Net Asset Value	12.80%
Fidelity Series Select International Small Cap Fund | Consumer Staples Sector Member
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Series Select International Small Cap Fund | Communications Sector Member
Holdings [Line Items]
Percent of Net Asset Value	3.80%
Fidelity Series Select International Small Cap Fund | Energy Sector
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Fidelity Series Select International Small Cap Fund | Utilities Sector Member
Holdings [Line Items]
Percent of Net Asset Value	2.10%
Fidelity Series Select International Small Cap Fund | Japan
Holdings [Line Items]
Percent of Net Asset Value	38.60%
Fidelity Series Select International Small Cap Fund | United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	12.60%
Fidelity Series Select International Small Cap Fund | United States
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Series Select International Small Cap Fund | France
Holdings [Line Items]
Percent of Net Asset Value	5.40%
Fidelity Series Select International Small Cap Fund | Germany
Holdings [Line Items]
Percent of Net Asset Value	4.30%
Fidelity Series Select International Small Cap Fund | Australia
Holdings [Line Items]
Percent of Net Asset Value	7.70%
Fidelity Series Select International Small Cap Fund | OtherMember
Holdings [Line Items]
Percent of Net Asset Value	18.30%
Fidelity Series Select International Small Cap Fund | Sweden
Holdings [Line Items]
Percent of Net Asset Value	4.60%
Fidelity Series Select International Small Cap Fund | Switzerland
Holdings [Line Items]
Percent of Net Asset Value	3.10%
Fidelity Series Select International Small Cap Fund | Spain
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Fidelity Series Select International Small Cap Fund | AACommonStocksMember
Holdings [Line Items]
Percent of Net Asset Value	96.80%
Fidelity Series Select International Small Cap Fund | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember
Holdings [Line Items]
Percent of Net Asset Value	2.80%
Fidelity Series Select International Small Cap Fund | AAPreferredStocksMember
Holdings [Line Items]
Percent of Net Asset Value	0.40%