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Shareholder Report
 6 Months Ended
Jul. 31, 2024
USD ($)
shares
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Fidelity Devonshire Trust
Entity Central Index Key 0000035341
Entity Investment Company Type N-1A
Document Period End Date Jul. 31, 2024
Fidelity Advisor Stock Selector Large Cap Value Fund - Class C  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stock Selector Large Cap Value Fund
Class Name Fidelity Advisor® Stock Selector Large Cap Value Fund Class C
Trading Symbol FLUEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class C 
$ 98 
1.86%
  
Expenses Paid, Amount $ 98
Expense Ratio, Percent 1.86%
Net Assets $ 593,433,431
Holdings Count | shares 144
Investment Company Portfolio Turnover 77.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$593,433,431
 
  
Number of Holdings
144
 
  
Portfolio Turnover
77%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.0   Health Care 14.7   Industrials 14.3   Information Technology 9.2   Energy 7.2   Consumer Staples 7.2   Consumer Discretionary 6.0   Real Estate 4.6   Materials 4.4   Utilities 4.3   Communication Services 4.0     Common Stocks 96.9 Domestic Equity Funds 1.1 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 96.4 Canada 1.3 France 0.9 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.0     Exxon Mobil Corp 2.8     Cisco Systems Inc 1.9     UnitedHealth Group Inc 1.9     FedEx Corp 1.9     Thermo Fisher Scientific Inc 1.6     Norfolk Southern Corp 1.6     Bank of America Corp 1.6     Wells Fargo & Co 1.6     Lowe's Cos Inc 1.6       19.5    
Fidelity Stock Selector Large Cap Value Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stock Selector Large Cap Value Fund
Class Name Fidelity® Stock Selector Large Cap Value Fund
Trading Symbol FSLVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Stock Selector Large Cap Value Fund 
$ 43 
0.82%
  
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.82%
Net Assets $ 593,433,431
Holdings Count | shares 144
Investment Company Portfolio Turnover 77.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$593,433,431
 
  
Number of Holdings
144
 
  
Portfolio Turnover
77%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.0   Health Care 14.7   Industrials 14.3   Information Technology 9.2   Energy 7.2   Consumer Staples 7.2   Consumer Discretionary 6.0   Real Estate 4.6   Materials 4.4   Utilities 4.3   Communication Services 4.0     Common Stocks 96.9 Domestic Equity Funds 1.1 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 96.4 Canada 1.3 France 0.9 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.0     Exxon Mobil Corp 2.8     Cisco Systems Inc 1.9     UnitedHealth Group Inc 1.9     FedEx Corp 1.9     Thermo Fisher Scientific Inc 1.6     Norfolk Southern Corp 1.6     Bank of America Corp 1.6     Wells Fargo & Co 1.6     Lowe's Cos Inc 1.6       19.5    
Fidelity Series Value Discovery Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Series Value Discovery Fund
Class Name Fidelity® Series Value Discovery Fund
Trading Symbol FNKLX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Series Value Discovery Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Series Value Discovery Fund 
$ 0 A
0.00%B
  
A Amount represents less than $.50
B Amount represents less than 0.005%
 
Expenses Paid, Amount $ 0
Expense Ratio, Percent 0.00%
Net Assets $ 11,566,272,328
Holdings Count | shares 95
Investment Company Portfolio Turnover 38.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$11,566,272,328
 
  
Number of Holdings
95
 
  
Portfolio Turnover
38%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 24.2   Health Care 16.8   Industrials 12.1   Consumer Staples 10.8   Energy 8.8   Information Technology 7.3   Utilities 6.7   Communication Services 4.9   Consumer Discretionary 4.6   Materials 2.1   Real Estate 1.1     Common Stocks 98.2 Preferred Stocks 1.2 Short-Term Investments and Net Other Assets (Liabilities) 0.6 ASSET ALLOCATION (% of Fund's net assets) United States 87.8 United Kingdom 4.9 Canada 2.0 Germany 1.9 France 1.4 Korea (South) 1.2 Norway 0.7 Denmark 0.1 Monaco 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 4.4     JPMorgan Chase & Co 3.8     Chubb Ltd 3.0     UnitedHealth Group Inc 2.9     Comcast Corp Class A 2.8     Bank of America Corp 2.7     Travelers Cos Inc/The 2.5     Cigna Group/The 2.5     PG&E Corp 2.3     Wells Fargo & Co 2.2       29.1    
Fidelity Mid Cap Value K6 Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value K6 Fund
Class Name Fidelity® Mid Cap Value K6 Fund
Trading Symbol FCMVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value K6 Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.
Additional Information Phone Number 1-800-835-5092
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Mid Cap Value K6 Fund 
$ 24 
0.45%
  
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.45%
Net Assets $ 53,163,813
Holdings Count | shares 190
Investment Company Portfolio Turnover 93.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$53,163,813
 
  
Number of Holdings
190
 
  
Portfolio Turnover
93%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.7   Materials 9.9   Consumer Discretionary 9.4   Real Estate 8.9   Health Care 8.2   Utilities 7.9   Consumer Staples 6.5   Information Technology 6.3   Energy 5.6   Communication Services 1.7     Common Stocks 99.4 Short-Term Investments and Net Other Assets (Liabilities) 0.6 ASSET ALLOCATION (% of Fund's net assets) United States 95.1 Canada 2.4 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Coca-Cola Consolidated Inc 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0       11.1    
Fidelity Series All-Sector Equity Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Series All-Sector Equity Fund
Class Name Fidelity® Series All-Sector Equity Fund
Trading Symbol FSAEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Series All-Sector Equity Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Series All-Sector Equity Fund 
$ 0 A
0.00%B
  
A Amount represents less than $.50
B Amount represents less than 0.005%
 
Expenses Paid, Amount $ 0
Expense Ratio, Percent 0.00%
Net Assets $ 3,639,434,263
Holdings Count | shares 273
Investment Company Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$3,639,434,263
 
  
Number of Holdings
273
 
  
Portfolio Turnover
43%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Information Technology 28.4   Financials 13.8   Health Care 11.7   Consumer Discretionary 10.3   Industrials 10.1   Communication Services 8.7   Consumer Staples 5.3   Energy 3.8   Real Estate 2.4   Materials 2.3   Utilities 2.2     Common Stocks 99.0 Preferred Stocks 0.0 Short-Term Investments and Net Other Assets (Liabilities) 1.0 ASSET ALLOCATION (% of Fund's net assets) United States 99.4 China 0.4 United Kingdom 0.2 Canada 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Microsoft Corp 7.1     NVIDIA Corp 6.2     Apple Inc 5.9     Amazon.com Inc 4.0     Meta Platforms Inc Class A 2.6     Broadcom Inc 2.1     Exxon Mobil Corp 2.0     Alphabet Inc Class A 2.0     Alphabet Inc Class C 1.8     Eli Lilly & Co 1.7       35.4    
Fidelity Advisor Mid Cap Value Fund - Class I  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value Fund
Class Name Fidelity Advisor® Mid Cap Value Fund Class I
Trading Symbol FMPOX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class I 
$ 47 
0.89%
  
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.89%
Net Assets $ 1,878,791,142
Holdings Count | shares 190
Investment Company Portfolio Turnover 91.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$1,878,791,142
 
  
Number of Holdings
190
 
  
Portfolio Turnover
91%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.8   Materials 10.0   Consumer Discretionary 9.5   Real Estate 8.9   Health Care 8.3   Utilities 7.9   Information Technology 6.4   Consumer Staples 6.3   Energy 5.7   Communication Services 1.7     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 95.0 Canada 2.5 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0     Corteva Inc 1.0       11.1    
Fidelity Advisor Mid Cap Value Fund - Class C  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value Fund
Class Name Fidelity Advisor® Mid Cap Value Fund Class C
Trading Symbol FMPEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class C 
$ 100 
1.88%
  
Expenses Paid, Amount $ 100
Expense Ratio, Percent 1.88%
Net Assets $ 1,878,791,142
Holdings Count | shares 190
Investment Company Portfolio Turnover 91.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$1,878,791,142
 
  
Number of Holdings
190
 
  
Portfolio Turnover
91%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.8   Materials 10.0   Consumer Discretionary 9.5   Real Estate 8.9   Health Care 8.3   Utilities 7.9   Information Technology 6.4   Consumer Staples 6.3   Energy 5.7   Communication Services 1.7     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 95.0 Canada 2.5 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0     Corteva Inc 1.0       11.1    
Fidelity Advisor Stock Selector Large Cap Value Fund - Class M  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stock Selector Large Cap Value Fund
Class Name Fidelity Advisor® Stock Selector Large Cap Value Fund Class M
Trading Symbol FLUTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class M 
$ 72 
1.36%
  
Expenses Paid, Amount $ 72
Expense Ratio, Percent 1.36%
Net Assets $ 593,433,431
Holdings Count | shares 144
Investment Company Portfolio Turnover 77.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$593,433,431
 
  
Number of Holdings
144
 
  
Portfolio Turnover
77%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.0   Health Care 14.7   Industrials 14.3   Information Technology 9.2   Energy 7.2   Consumer Staples 7.2   Consumer Discretionary 6.0   Real Estate 4.6   Materials 4.4   Utilities 4.3   Communication Services 4.0     Common Stocks 96.9 Domestic Equity Funds 1.1 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 96.4 Canada 1.3 France 0.9 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.0     Exxon Mobil Corp 2.8     Cisco Systems Inc 1.9     UnitedHealth Group Inc 1.9     FedEx Corp 1.9     Thermo Fisher Scientific Inc 1.6     Norfolk Southern Corp 1.6     Bank of America Corp 1.6     Wells Fargo & Co 1.6     Lowe's Cos Inc 1.6       19.5    
Fidelity Mid Cap Value Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value Fund
Class Name Fidelity® Mid Cap Value Fund
Trading Symbol FSMVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Mid Cap Value Fund 
$ 45 
0.84%
  
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.84%
Net Assets $ 1,878,791,142
Holdings Count | shares 190
Investment Company Portfolio Turnover 91.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$1,878,791,142
 
  
Number of Holdings
190
 
  
Portfolio Turnover
91%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.8   Materials 10.0   Consumer Discretionary 9.5   Real Estate 8.9   Health Care 8.3   Utilities 7.9   Information Technology 6.4   Consumer Staples 6.3   Energy 5.7   Communication Services 1.7     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 95.0 Canada 2.5 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0     Corteva Inc 1.0       11.1    
Fidelity Advisor Mid Cap Value Fund - Class A  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value Fund
Class Name Fidelity Advisor® Mid Cap Value Fund Class A
Trading Symbol FMPAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class A 
$ 61 
1.13%
  
Expenses Paid, Amount $ 61
Expense Ratio, Percent 1.13%
Net Assets $ 1,878,791,142
Holdings Count | shares 190
Investment Company Portfolio Turnover 91.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$1,878,791,142
 
  
Number of Holdings
190
 
  
Portfolio Turnover
91%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.8   Materials 10.0   Consumer Discretionary 9.5   Real Estate 8.9   Health Care 8.3   Utilities 7.9   Information Technology 6.4   Consumer Staples 6.3   Energy 5.7   Communication Services 1.7     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 95.0 Canada 2.5 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0     Corteva Inc 1.0       11.1    
Fidelity Equity-Income Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Equity-Income Fund
Class Name Fidelity® Equity-Income Fund
Trading Symbol FEQIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Equity-Income Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Equity-Income Fund 
$ 29 
0.54%
  
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.54%
Net Assets $ 8,400,812,904
Holdings Count | shares 130
Investment Company Portfolio Turnover 25.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$8,400,812,904
 
  
Number of Holdings
130
 
  
Portfolio Turnover
25%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 20.2   Health Care 14.5   Industrials 13.0   Information Technology 10.3   Consumer Staples 9.2   Energy 7.5   Consumer Discretionary 5.6   Communication Services 5.5   Utilities 5.5   Materials 5.1   Real Estate 2.1     Common Stocks 98.5 Short-Term Investments and Net Other Assets (Liabilities) 1.5 ASSET ALLOCATION (% of Fund's net assets) United States 90.1 Canada 2.6 United Kingdom 1.8 Taiwan 1.5 China 1.3 Korea (South) 1.1 Ireland 1.0 Japan 0.4 Germany 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.7     Exxon Mobil Corp 3.0     UnitedHealth Group Inc 2.7     Linde PLC 2.4     Bank of America Corp 2.3     Danaher Corp 2.0     Wells Fargo & Co 2.0     General Electric Co 1.9     Chubb Ltd 1.7     PNC Financial Services Group Inc/The 1.7       23.4    
Fidelity Equity-Income Fund - Class K  
Shareholder Report [Line Items]  
Fund Name Fidelity® Equity-Income Fund
Class Name Fidelity® Equity-Income Fund Class K
Trading Symbol FEIKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Equity-Income Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.
Additional Information Phone Number 1-800-835-5092
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class K 
$ 24 
0.46%
  
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.46%
Net Assets $ 8,400,812,904
Holdings Count | shares 130
Investment Company Portfolio Turnover 25.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$8,400,812,904
 
  
Number of Holdings
130
 
  
Portfolio Turnover
25%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 20.2   Health Care 14.5   Industrials 13.0   Information Technology 10.3   Consumer Staples 9.2   Energy 7.5   Consumer Discretionary 5.6   Communication Services 5.5   Utilities 5.5   Materials 5.1   Real Estate 2.1     Common Stocks 98.5 Short-Term Investments and Net Other Assets (Liabilities) 1.5 ASSET ALLOCATION (% of Fund's net assets) United States 90.1 Canada 2.6 United Kingdom 1.8 Taiwan 1.5 China 1.3 Korea (South) 1.1 Ireland 1.0 Japan 0.4 Germany 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.7     Exxon Mobil Corp 3.0     UnitedHealth Group Inc 2.7     Linde PLC 2.4     Bank of America Corp 2.3     Danaher Corp 2.0     Wells Fargo & Co 2.0     General Electric Co 1.9     Chubb Ltd 1.7     PNC Financial Services Group Inc/The 1.7       23.4    
Fidelity Advisor Stock Selector Large Cap Value Fund - Class Z  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stock Selector Large Cap Value Fund
Class Name Fidelity Advisor® Stock Selector Large Cap Value Fund Class Z
Trading Symbol FSCZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class Z 
$ 37 
0.71%
  
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.71%
Net Assets $ 593,433,431
Holdings Count | shares 144
Investment Company Portfolio Turnover 77.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$593,433,431
 
  
Number of Holdings
144
 
  
Portfolio Turnover
77%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.0   Health Care 14.7   Industrials 14.3   Information Technology 9.2   Energy 7.2   Consumer Staples 7.2   Consumer Discretionary 6.0   Real Estate 4.6   Materials 4.4   Utilities 4.3   Communication Services 4.0     Common Stocks 96.9 Domestic Equity Funds 1.1 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 96.4 Canada 1.3 France 0.9 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.0     Exxon Mobil Corp 2.8     Cisco Systems Inc 1.9     UnitedHealth Group Inc 1.9     FedEx Corp 1.9     Thermo Fisher Scientific Inc 1.6     Norfolk Southern Corp 1.6     Bank of America Corp 1.6     Wells Fargo & Co 1.6     Lowe's Cos Inc 1.6       19.5    
Fidelity Advisor Stock Selector Large Cap Value Fund - Class I  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stock Selector Large Cap Value Fund
Class Name Fidelity Advisor® Stock Selector Large Cap Value Fund Class I
Trading Symbol FLUIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class I 
$ 43 
0.81%
  
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.81%
Net Assets $ 593,433,431
Holdings Count | shares 144
Investment Company Portfolio Turnover 77.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$593,433,431
 
  
Number of Holdings
144
 
  
Portfolio Turnover
77%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.0   Health Care 14.7   Industrials 14.3   Information Technology 9.2   Energy 7.2   Consumer Staples 7.2   Consumer Discretionary 6.0   Real Estate 4.6   Materials 4.4   Utilities 4.3   Communication Services 4.0     Common Stocks 96.9 Domestic Equity Funds 1.1 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 96.4 Canada 1.3 France 0.9 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.0     Exxon Mobil Corp 2.8     Cisco Systems Inc 1.9     UnitedHealth Group Inc 1.9     FedEx Corp 1.9     Thermo Fisher Scientific Inc 1.6     Norfolk Southern Corp 1.6     Bank of America Corp 1.6     Wells Fargo & Co 1.6     Lowe's Cos Inc 1.6       19.5    
Fidelity Equity-Income K6 Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Equity-Income K6 Fund
Class Name Fidelity® Equity-Income K6 Fund
Trading Symbol FEKFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Equity-Income K6 Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.
Additional Information Phone Number 1-800-835-5092
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Equity-Income K6 Fund 
$ 18 
0.34%
  
Expenses Paid, Amount $ 18
Expense Ratio, Percent 0.34%
Net Assets $ 198,329,180
Holdings Count | shares 130
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$198,329,180
 
  
Number of Holdings
130
 
  
Portfolio Turnover
37%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 20.3   Health Care 14.6   Industrials 13.1   Information Technology 10.3   Consumer Staples 9.1   Energy 7.5   Communication Services 5.6   Consumer Discretionary 5.6   Utilities 5.4   Materials 5.0   Real Estate 2.1     Common Stocks 98.6 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 90.0 Canada 2.6 United Kingdom 1.9 Taiwan 1.5 China 1.3 Korea (South) 1.1 Ireland 1.0 Japan 0.4 Germany 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.8     Exxon Mobil Corp 3.0     UnitedHealth Group Inc 2.7     Linde PLC 2.4     Bank of America Corp 2.3     Danaher Corp 2.0     Wells Fargo & Co 2.0     General Electric Co 1.9     PNC Financial Services Group Inc/The 1.8     Walmart Inc 1.8       23.7    
Fidelity Advisor Stock Selector Large Cap Value Fund - Class A  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stock Selector Large Cap Value Fund
Class Name Fidelity Advisor® Stock Selector Large Cap Value Fund Class A
Trading Symbol FLUAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class A 
$ 59 
1.12%
  
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.12%
Net Assets $ 593,433,431
Holdings Count | shares 144
Investment Company Portfolio Turnover 77.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$593,433,431
 
  
Number of Holdings
144
 
  
Portfolio Turnover
77%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.0   Health Care 14.7   Industrials 14.3   Information Technology 9.2   Energy 7.2   Consumer Staples 7.2   Consumer Discretionary 6.0   Real Estate 4.6   Materials 4.4   Utilities 4.3   Communication Services 4.0     Common Stocks 96.9 Domestic Equity Funds 1.1 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 96.4 Canada 1.3 France 0.9 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 3.0     Exxon Mobil Corp 2.8     Cisco Systems Inc 1.9     UnitedHealth Group Inc 1.9     FedEx Corp 1.9     Thermo Fisher Scientific Inc 1.6     Norfolk Southern Corp 1.6     Bank of America Corp 1.6     Wells Fargo & Co 1.6     Lowe's Cos Inc 1.6       19.5    
Fidelity Advisor Mid Cap Value Fund - Class M  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value Fund
Class Name Fidelity Advisor® Mid Cap Value Fund Class M
Trading Symbol FMPTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class M 
$ 74 
1.38%
  
Expenses Paid, Amount $ 74
Expense Ratio, Percent 1.38%
Net Assets $ 1,878,791,142
Holdings Count | shares 190
Investment Company Portfolio Turnover 91.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$1,878,791,142
 
  
Number of Holdings
190
 
  
Portfolio Turnover
91%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.8   Materials 10.0   Consumer Discretionary 9.5   Real Estate 8.9   Health Care 8.3   Utilities 7.9   Information Technology 6.4   Consumer Staples 6.3   Energy 5.7   Communication Services 1.7     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 95.0 Canada 2.5 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0     Corteva Inc 1.0       11.1    
Fidelity Series Stock Selector Large Cap Value Fund  
Shareholder Report [Line Items]  
Fund Name Fidelity® Series Stock Selector Large Cap Value Fund
Class Name Fidelity® Series Stock Selector Large Cap Value Fund
Trading Symbol FBLEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Series Stock Selector Large Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Series Stock Selector Large Cap Value Fund 
$ 0 A
0.00%B
  
A Amount represents less than $.50
B Amount represents less than 0.005%
 
Expenses Paid, Amount $ 0
Expense Ratio, Percent 0.00%
Net Assets $ 11,871,798,891
Holdings Count | shares 142
Investment Company Portfolio Turnover 95.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$11,871,798,891
 
  
Number of Holdings
142
 
  
Portfolio Turnover
95%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Financials 21.1   Health Care 15.2   Industrials 14.2   Information Technology 8.9   Consumer Staples 7.3   Energy 7.3   Consumer Discretionary 6.0   Real Estate 4.6   Utilities 4.6   Materials 4.4   Communication Services 4.0     Common Stocks 97.6 Domestic Equity Funds 1.0 Short-Term Investments and Net Other Assets (Liabilities) 1.4 ASSET ALLOCATION (% of Fund's net assets) United States 96.5 Canada 1.3 France 0.8 Taiwan 0.7 Australia 0.4 United Kingdom 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 2.9     Exxon Mobil Corp 2.9     UnitedHealth Group Inc 2.0     FedEx Corp 1.9     Cisco Systems Inc 1.8     Thermo Fisher Scientific Inc 1.7     Bank of America Corp 1.7     Johnson & Johnson 1.6     Lowe's Cos Inc 1.6     Norfolk Southern Corp 1.6       19.7    
Fidelity Advisor Mid Cap Value Fund - Class Z  
Shareholder Report [Line Items]  
Fund Name Fidelity® Mid Cap Value Fund
Class Name Fidelity Advisor® Mid Cap Value Fund Class Z
Trading Symbol FIDFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Mid Cap Value Fund for the period February 1, 2024 to July 31, 2024.
Shareholder Report Annual or Semi-Annual semi-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.
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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Class Z 
$ 40 
0.75%
  
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.75%
Net Assets $ 1,878,791,142
Holdings Count | shares 190
Investment Company Portfolio Turnover 91.00%
Additional Fund Statistics [Text Block] Key Fund Statistics  
(as of July 31, 2024)
 
KEY FACTS 
  
  
Fund Size
$1,878,791,142
 
  
Number of Holdings
190
 
  
Portfolio Turnover
91%
 
  
Holdings [Text Block]   MARKET SECTORS (% of Fund's net assets)     Industrials 18.3   Financials 16.8   Materials 10.0   Consumer Discretionary 9.5   Real Estate 8.9   Health Care 8.3   Utilities 7.9   Information Technology 6.4   Consumer Staples 6.3   Energy 5.7   Communication Services 1.7     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 95.0 Canada 2.5 Ireland 0.5 Spain 0.4 Switzerland 0.4 Zambia 0.3 Belgium 0.3 Netherlands 0.3 Israel 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)    
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Welltower Inc 1.5     PG&E Corp 1.2     Edison International 1.1     Sun Communities Inc 1.1     Builders FirstSource Inc 1.1     Steel Dynamics Inc 1.1     Camden Property Trust 1.0     Discover Financial Services 1.0     J M Smucker Co/The 1.0     Corteva Inc 1.0       11.1