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Vanguard Emerging Markets Government Bond Index Fund Average Annual Total Returns - Admiral Prospectus [Member]
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg USD Emerging Markets Government RIC Capped Index (reflects no deduction for fees, expenses, or taxes)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent 13.11% 1.51% 4.21%
Bloomberg Global Aggregate Index ex USD (reflects no deduction for fees, expenses, or taxes)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent 8.85% (3.59%) 0.56%
Admiral Shares      
Prospectus [Line Items]      
Average Annual Return, Percent 12.13% 1.36% 4.10%
Admiral Shares | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 9.39% (0.84%) 1.99%
Admiral Shares | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 7.08% 0.03% 2.20%