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Vanguard FTSE All-World ex-US Small-Cap Index Fund Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Admiral Prospectus [Member] | Vanguard FTSE All-World ex-US Small-Cap Index Fund | Admiral Shares            
Prospectus [Line Items]            
Annual Return [Percent] 29.87% 2.57% 15.14% (21.29%) 12.70% 11.91%