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Shareholder Report
 12 Months Ended
Sep. 30, 2024
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Vanguard Chester Funds
Entity Central Index Key 0000752177
Entity Investment Company Type N-1A
Document Period End Date Sep. 30, 2024
C000007072 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement Income Fund
Class Name Investor Shares
Trading Symbol VTINX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement Income Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement Income Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank, the Bank of England, and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund uses an asset allocation strategy designed for investors currently in retirement. It seeks to provide current income and some growth of capital.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 7.46% for Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 16.22% 4.45% 4.51%
Target Retirement Income Composite Index 16.34% 4.75% 4.74%
Bloomberg U.S. Aggregate Bond Index 11.57% 0.33% 1.84%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 36,539,000,000
Holdings Count | Holding 8
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $36,539
Number of Portfolio Holdings 8
Portfolio Turnover Rate 4%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Bond Market II Index Fund Investor Shares 36.5%
Vanguard Total Stock Market Index Fund Institutional Plus Shares 17.9%
Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares 16.7%
Vanguard Total International Bond II Index Fund Institutional Shares 15.9%
Vanguard Total International Stock Index Fund Investor Shares 12.3%
Other Assets and Liabilities—Net 0.7%
C000007075 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2025 Fund
Class Name Investor Shares
Trading Symbol VTTVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2025 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2025 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 7.46% for Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 21.13% 7.09% 6.74%
Target Retirement 2025 Composite Index 21.26% 7.55% 7.06%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 78,755,000,000
Holdings Count | Holding 8
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $78,755
Number of Portfolio Holdings 8
Portfolio Turnover Rate 7%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 31.0%
Vanguard Total Bond Market II Index Fund Investor Shares 28.7%
Vanguard Total International Stock Index Fund Investor Shares 20.8%
Vanguard Total International Bond II Index Fund Institutional Shares 12.4%
Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares 6.5%
Other Assets and Liabilities—Net 0.6%
C000007076 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2035 Fund
Class Name Investor Shares
Trading Symbol VTTHX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2035 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2035 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 24.76% 8.95% 7.93%
Target Retirement 2035 Composite Index 24.96% 9.41% 8.26%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 104,179,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $104,179
Number of Portfolio Holdings 7
Portfolio Turnover Rate 4%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 41.4%
Vanguard Total International Stock Index Fund Investor Shares 27.6%
Vanguard Total Bond Market II Index Fund Investor Shares 21.3%
Vanguard Total International Bond II Index Fund Institutional Shares 9.1%
Other Assets and Liabilities—Net 0.6%
C000007077 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2045 Fund
Class Name Investor Shares
Trading Symbol VTIVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2045 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed roughly in line with its benchmark, the Target Retirement 2045 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 27.82% 10.74% 8.97%
Target Retirement 2045 Composite Index 28.08% 11.18% 9.32%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 91,013,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $91,013
Number of Portfolio Holdings 7
Portfolio Turnover Rate 1%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 50.3%
Vanguard Total International Stock Index Fund Investor Shares 33.2%
Vanguard Total Bond Market II Index Fund Investor Shares 10.9%
Vanguard Total International Bond II Index Fund Institutional Shares 4.8%
Other Assets and Liabilities—Net 0.8%
C000034438 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2020 Fund
Class Name Investor Shares
Trading Symbol VTWNX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2020 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2020 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 7.46% for Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 18.25% 6.01% 5.99%
Target Retirement 2020 Composite Index 18.34% 6.37% 6.27%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 37,873,000,000
Holdings Count | Holding 8
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 4.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $37,873
Number of Portfolio Holdings 8
Portfolio Turnover Rate 4%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Bond Market II Index Fund Investor Shares 33.6%
Vanguard Total Stock Market Index Fund Institutional Plus Shares 22.7%
Vanguard Total International Stock Index Fund Investor Shares 15.4%
Vanguard Total International Bond II Index Fund Institutional Shares 14.7%
Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares 12.9%
Other Assets and Liabilities—Net 0.7%
C000034439 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2030 Fund
Class Name Investor Shares
Trading Symbol VTHRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2030 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed roughly in line with its benchmark, the Target Retirement 2030 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund. 
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 23.27% 8.04% 7.35%
Target Retirement 2030 Composite Index 23.41% 8.50% 7.68%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 99,058,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $99,058
Number of Portfolio Holdings 7
Portfolio Turnover Rate 7%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 36.7%
Vanguard Total Bond Market II Index Fund Investor Shares 26.6%
Vanguard Total International Stock Index Fund Investor Shares 24.8%
Vanguard Total International Bond II Index Fund Institutional Shares 11.3%
Other Assets and Liabilities—Net 0.6%
C000034440 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2040 Fund
Class Name Investor Shares
Trading Symbol VFORX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2040 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed roughly in line with its benchmark, the Target Retirement 2040 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 26.33% 9.85% 8.49%
Target Retirement 2040 Composite Index 26.51% 10.30% 8.83%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 93,115,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $93,115
Number of Portfolio Holdings 7
Portfolio Turnover Rate 2%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 46.3%
Vanguard Total International Stock Index Fund Investor Shares 30.2%
Vanguard Total Bond Market II Index Fund Investor Shares 16.0%
Vanguard Total International Bond II Index Fund Institutional Shares 6.9%
Other Assets and Liabilities—Net 0.6%
C000034441 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2050 Fund
Class Name Investor Shares
Trading Symbol VFIFX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2050 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed roughly in line with its benchmark, the Target Retirement 2050 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 28.91% 11.05% 9.13%
Target Retirement 2050 Composite Index 29.26% 11.52% 9.49%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 77,441,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $77,441
Number of Portfolio Holdings 7
Portfolio Turnover Rate 1%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 53.5%
Vanguard Total International Stock Index Fund Investor Shares 36.2%
Vanguard Total Bond Market II Index Fund Investor Shares 6.6%
Vanguard Total International Bond II Index Fund Institutional Shares 3.0%
Other Assets and Liabilities—Net 0.7%
C000091317 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2055 Fund
Class Name Investor Shares
Trading Symbol VFFVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2055 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2055 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 28.92% 11.05% 9.11%
Target Retirement 2055 Composite Index 29.26% 11.52% 9.49%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 52,016,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $52,016
Number of Portfolio Holdings 7
Portfolio Turnover Rate 1%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 53.5%
Vanguard Total International Stock Index Fund Investor Shares 36.1%
Vanguard Total Bond Market II Index Fund Investor Shares 6.7%
Vanguard Total International Bond II Index Fund Institutional Shares 3.0%
Other Assets and Liabilities—Net 0.7%
C000108861 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2060 Fund
Class Name Investor Shares
Trading Symbol VTTSX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2060 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2060 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform over the past 10 years?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: September 30, 2014, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years 10 Years
Investor Shares 28.93% 11.05% 9.11%
Target Retirement 2060 Composite Index 29.26% 11.52% 9.49%
MSCI US Broad Market Index 35.26% 15.40% 12.91%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.87%
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 29,576,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $29,576
Number of Portfolio Holdings 7
Portfolio Turnover Rate 1%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 53.4%
Vanguard Total International Stock Index Fund Investor Shares 36.2%
Vanguard Total Bond Market II Index Fund Investor Shares 6.6%
Vanguard Total International Bond II Index Fund Institutional Shares 3.0%
Other Assets and Liabilities—Net 0.8%
C000180147 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2065 Fund
Class Name Investor Shares
Trading Symbol VLXVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2065 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2065 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform since inception?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: July 12, 2017, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year 5 Years Since Inception
(7/12/2017)
Investor Shares 28.95% 11.04% 9.82%
Target Retirement 2065 Composite Index 29.26% 11.52% 10.22%
MSCI US Broad Market Index 35.26% 15.40% 13.96%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 0.36% 1.57%
Performance Inception Date Jul. 12, 2017
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 8,843,000,000
Holdings Count | Holding 7
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 0.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $8,843
Number of Portfolio Holdings 7
Portfolio Turnover Rate 0%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 53.2%
Vanguard Total International Stock Index Fund Investor Shares 36.3%
Vanguard Total Bond Market II Index Fund Investor Shares 6.6%
Vanguard Total International Bond II Index Fund Institutional Shares 3.0%
Other Assets and Liabilities—Net 0.9%
C000234832 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Target Retirement 2070 Fund
Class Name Investor Shares
Trading Symbol VSVNX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Vanguard Target Retirement 2070 Fund (the "Fund") for the period of October 1, 2023, to September 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature. You can also request this information by contacting us at 800-662-7447.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
Expenses [Text Block]
What were the Fund costs for the last year?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $9 0.08%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.08%
Factors Affecting Performance [Text Block]
How did the Fund perform during the reporting period?
  • For the 12 months ended September 30, 2024, the Fund performed in line with its benchmark, the Target Retirement 2070 Composite Index.
  • Global economic growth appeared relatively stable at around 3% during the period. With inflation moderating across much of the world, major central banks including the European Central Bank and the U.S. Federal Reserve began lowering policy rates. Stock and bond prices rose worldwide.
  • The Fund automatically adjusts its asset mix over time, providing broad diversification while incrementally decreasing exposure to stocks and increasing exposure to bonds. The Fund continues to adjust for approximately seven years after its target date until its allocations match those of Vanguard Target Retirement Income Fund.
  • As a fund of funds, the Fund’s performance reflects the weighted average of its holdings’ total returns, which ranged from 10.35% for Vanguard Total International Bond II Index Fund Institutional Shares to 35.27% for Vanguard Total Stock Market Index Fund Institutional Plus Shares.
Performance Past Does Not Indicate Future [Text] Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.
Line Graph [Table Text Block]
How did the Fund perform since inception?
Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Cumulative Performance: June 28, 2022, Through September 30, 2024
Initial Investment of $10,000
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns
1 Year Since Inception
(6/28/2022)
Investor Shares 28.98% 16.56%
Target Retirement 2070 Composite Index 29.26% 16.78%
MSCI US Broad Market Index 35.26% 21.14%
Bloomberg U.S. Aggregate Float Adjusted Index 11.47% 3.52%
Performance Inception Date Jun. 28, 2022
No Deduction of Taxes [Text Block] The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares.
Updated Performance Information Location [Text Block] Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.
Net Assets $ 1,036,000,000
Holdings Count | Holding 5
Advisory Fees Paid, Amount $ 0
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of September 30, 2024)
Fund Net Assets
(in millions)		 $1,036
Number of Portfolio Holdings 5
Portfolio Turnover Rate 1%
Total Investment Advisory Fees
(in thousands)		 $0
Holdings [Text Block]
This table reflects the Fund’s investments, including short-term investments and other assets and liabilities.
Portfolio Composition % of Net Assets
(as of September 30, 2024)
Vanguard Total Stock Market Index Fund Institutional Plus Shares 54.1%
Vanguard Total International Stock Index Fund Investor Shares 35.8%
Vanguard Total Bond Market II Index Fund Investor Shares 7.0%
Vanguard Total International Bond II Index Fund Institutional Shares 3.0%
Other Assets and Liabilities—Net 0.1%