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Vanguard FTSE Social Index Fund Annual Total Returns	12 Months Ended
Vanguard FTSE Social Index Fund Annual Total Returns	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Admiral Prospectus [Member] \| Vanguard FTSE Social Index Fund \| Admiral Shares
Prospectus [Line Items]
Annual Return [Percent]	25.97%	31.79%	(24.22%)	27.71%	22.67%