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Vanguard FTSE Social Index Fund Annual Total Returns
12 Months Ended
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%