Shareholder Report | 6 Months Ended |
Jun. 30, 2024 USD ($) Holding |
Shareholder Report [Line Items] | |
Document Type | N-CSRS |
Amendment Flag | false |
Registrant Name | Vanguard Valley Forge Funds |
Entity Central Index Key | 0000889519 |
Entity Investment Company Type | N-1A |
Document Period End Date | Jun. 30, 2024 |
C000235057 | |
Shareholder Report [Line Items] | |
Fund Name | Baillie Gifford Global Positive Impact Stock Fund |
Class Name | Investor Shares |
Trading Symbol | VBPIX |
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Vanguard Baillie Gifford Global Positive Impact Stock Fund (the "Fund") for the period of January 1, 2024, to June 30, 2024. |
Shareholder Report Annual or Semi-Annual | Semi-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 six months? (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 $29 0.59% Footnote Reference Footnote Description Footnote 1 Annualized. |
Expenses Paid, Amount | $ 29 |
Expense Ratio, Percent | 0.59% |
AssetsNet | $ 239,000,000 |
Holdings Count | Holding | 31 |
InvestmentCompanyPortfolioTurnover | 14% |
Additional Fund Statistics [Text Block] | Fund Statistics (as of June 30, 2024) Fund Net Assets (in millions) $239 Number of Portfolio Holdings 31 Portfolio Turnover Rate 14% |
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 June 30, 2024) North America 57.9% Asia 21.2% Europe 15.3% South America 4.7% Africa 0.4% Other Assets and Liabilities—Net 0.5% |
Material Fund Change [Text Block] | |
Updated Prospectus Web Address | https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature |