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Vanguard Ultra-Short Bond ETF Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
ETF Prospectus [Member] | Vanguard Ultra-Short Bond ETF | ETF Shares        
Prospectus [Line Items]        
Annual Return [Percent] 5.22% 5.66% 5.56% (0.43%)