funds_us_0008|AM:VFISX|Short Name|price|total_return_price|net_asset_value|total_assets_under_management|assets_under_management|| funds_us_0008|AM:VFISX|Long Name|Vanguard Short-Term Treasury Fund Investor (VFISX) Price (USD)|Vanguard Short-Term Treasury Fund Investor (VFISX) Total Return Price (USD)|Vanguard Short-Term Treasury Fund Investor (VFISX) Net Asset Value (USD)|Vanguard Short-Term Treasury Fund Investor (VFISX) Total Assets Under Management (USD)|Vanguard Short-Term Treasury Fund Investor (VFISX) Share Class Assets Under Management (USD)|| funds_us_0008|AM:VFISX|Unit|figure_money_USD_price|figure_money_USD_price|figure_money_USD_price|figure_money_USD_metric|figure_money_USD_metric|| funds_us_0008|AM:VFISX||market_daily|market_daily|daily|daily|daily|| funds_us_0008|AM:VFISX|20241213|9.82|30.6726|9.82|||| funds_us_0008|AM:VFISX|20241216|9.82|30.676|9.82|||| funds_us_0008|AM:VFISX|20241217|9.82|30.6794|9.82|||| funds_us_0008|AM:VFISX|20241218|9.8|30.6205|9.8|||| funds_us_0008|AM:VFISX|20241219|9.8|30.6239|9.8|||| funds_us_0008|AM:VFISX|20241220|9.8|30.6341|9.8|||| funds_us_0008|AM:VFISX|20241223|9.79|30.6063|9.79|||| funds_us_0008|AM:VFISX|20241224|9.8|30.6443|9.8|||| funds_us_0008|AM:VFISX|20241226|9.8|30.6477|9.8|||| funds_us_0008|AM:VFISX|20241227|9.8|30.6579|9.8|||| funds_us_0008|AM:VFISX|20241230|9.81|30.696|9.81|||| funds_us_0008|AM:VFISX|20241231|9.81|30.6959|9.81|5756897524|472811732|| funds_us_0008|AM:VFISX|20250102|9.81|30.7028|9.81|||| funds_us_0008|AM:VFISX|20250103|9.81|30.7131|9.81|||| funds_us_0008|AM:VFISX|20250106|9.81|30.7166|9.81|||| funds_us_0008|AM:VFISX|20250107|9.8|30.6887|9.8|||| funds_us_0008|AM:VFISX|20250108|9.81|30.7269|9.81|||| funds_us_0008|AM:VFISX|20250110|9.78|30.6433|9.78|||| funds_us_0008|AM:VFISX|20250113|9.77|30.6155|9.77|||| funds_us_0008|AM:VFISX|20250114|9.78|30.6502|9.78|||| funds_us_0008|AM:VFISX|20250115|9.8|30.7162|9.8|||| funds_us_0008|AM:VFISX|20250116|9.81|30.751|9.81|||| funds_us_0008|AM:VFISX|20250117|9.8|30.7335|9.8|||| funds_us_0008|AM:VFISX|20250121|9.81|30.7682|9.81|||| funds_us_0008|AM:VFISX|20250122|9.8|30.7404|9.8|||| funds_us_0008|AM:VFISX|20250123|9.8|30.7439|9.8|||| funds_us_0008|AM:VFISX|20250124|9.81|30.7855|9.81|||| funds_us_0008|AM:VFISX|20250127|9.83|30.8516|9.83|||| funds_us_0008|AM:VFISX|20250128|9.83|30.8551|9.83|||| funds_us_0008|AM:VFISX|20250129|9.82|30.8273|9.82|||| funds_us_0008|AM:VFISX|20250130|9.82|30.8343|9.82|||| funds_us_0008|AM:VFISX|20250131|9.82|30.8343|9.82|5834585287|471106069|| funds_us_0008|AM:VFISX|20250203|9.81|30.8134|9.81|||| funds_us_0008|AM:VFISX|20250204|9.82|30.8484|9.82|||| funds_us_0008|AM:VFISX|20250205|9.83|30.8833|9.83|||| funds_us_0008|AM:VFISX|20250206|9.83|30.8868|9.83|||| funds_us_0008|AM:VFISX|20250207|9.81|30.8346|9.81|||| funds_us_0008|AM:VFISX|20250210|9.81|30.8381|9.81|||| funds_us_0008|AM:VFISX|20250211|9.81|30.8417|9.81|||| funds_us_0008|AM:VFISX|20250212|9.79|30.7824|9.79|||| funds_us_0008|AM:VFISX|20250213|9.8|30.8174|9.8|||| funds_us_0008|AM:VFISX|20250214|9.82|30.8943|9.82|||| funds_us_0008|AM:VFISX|20250218|9.81|30.8664|9.81|||| funds_us_0008|AM:VFISX|20250219|9.81|30.87|9.81|||| funds_us_0008|AM:VFISX|20250220|9.81|30.8735|9.81|||| funds_us_0008|AM:VFISX|20250221|9.83|30.9469|9.83|||| funds_us_0008|AM:VFISX|20250224|9.84|30.9819|9.84|||| funds_us_0008|AM:VFISX|20250225|9.85|31.0169|9.85|||| funds_us_0008|AM:VFISX|20250226|9.86|31.0517|9.86|||| funds_us_0008|AM:VFISX|20250227|9.86|31.0587|9.86|||| funds_us_0008|AM:VFISX|20250228|9.88|31.1215|9.88|5887879320|476878927|| funds_us_0008|AM:VFISX|20250303|9.88|31.1321|9.88|||| funds_us_0008|AM:VFISX|20250304|9.88|31.1357|9.88|||| funds_us_0008|AM:VFISX|20250305|9.87|31.1077|9.87|||| funds_us_0008|AM:VFISX|20250306|9.87|31.1112|9.87|||| funds_us_0008|AM:VFISX|20250307|9.87|31.1216|9.87|||| funds_us_0008|AM:VFISX|20250310|9.89|31.1881|9.89|||| funds_us_0008|AM:VFISX|20250311|9.88|31.16|9.88|||| funds_us_0008|AM:VFISX|20250312|9.87|31.132|9.87|||| funds_us_0008|AM:VFISX|20250313|9.88|31.1669|9.88|||| funds_us_0008|AM:VFISX|20250314|9.86|31.1143|9.86|||| funds_us_0008|AM:VFISX|20250317|9.86|31.1178|9.86|||| funds_us_0008|AM:VFISX|20250318|9.86|31.1213|9.86|||| funds_us_0008|AM:VFISX|20250319|9.87|31.1562|9.87|||| funds_us_0008|AM:VFISX|20250320|9.88|31.1912|9.88|||| funds_us_0008|AM:VFISX|20250321|9.88|31.2016|9.88|||| funds_us_0008|AM:VFISX|20250324|9.86|31.1421|9.86|||| funds_us_0008|AM:VFISX|20250325|9.87|31.1771|9.87|||| funds_us_0008|AM:VFISX|20250326|9.86|31.1491|9.86|||| funds_us_0008|AM:VFISX|20250327|9.86|31.1526|9.86|||| funds_us_0008|AM:VFISX|20250328|9.89|31.261|9.89|||| funds_us_0008|AM:VFISX|20250331|9.89|31.261|9.89|5949652160|484400356|| funds_us_0008|AM:VFISX|20250401|9.9|31.2961|9.9|||| funds_us_0008|AM:VFISX|20250402|9.89|31.268|9.89|||| funds_us_0008|AM:VFISX|20250403|9.93|31.3979|9.93|||| funds_us_0008|AM:VFISX|20250404|9.94|31.4399|9.94|||| funds_us_0008|AM:VFISX|20250407|9.91|31.3486|9.91|||| funds_us_0008|AM:VFISX|20250408|9.92|31.3836|9.92|||| funds_us_0008|AM:VFISX|20250409|9.88|31.2607|9.88|||| funds_us_0008|AM:VFISX|20250410|9.89|31.2958|9.89|||| funds_us_0008|AM:VFISX|20250411|9.86|31.2114|9.86|||| funds_us_0008|AM:VFISX|20250414|9.89|31.3097|9.89|||| funds_us_0008|AM:VFISX|20250415|9.89|31.3131|9.89|||| funds_us_0008|AM:VFISX|20250416|9.91|31.3798|9.91|||| funds_us_0008|AM:VFISX|20250417|9.9|31.3621|9.9|||| funds_us_0008|AM:VFISX|20250421|9.9|31.3655|9.9|||| funds_us_0008|AM:VFISX|20250422|9.89|31.3374|9.89|||| funds_us_0008|AM:VFISX|20250423|9.88|31.3092|9.88|||| funds_us_0008|AM:VFISX|20250424|9.9|31.3759|9.9|||| funds_us_0008|AM:VFISX|20250425|9.91|31.4179|9.91|||| funds_us_0008|AM:VFISX|20250428|9.92|31.453|9.92|||| funds_us_0008|AM:VFISX|20250429|9.93|31.4916|9.93|||| funds_us_0008|AM:VFISX|20250430|9.94|31.5232|9.94|5943845739|502837109|| funds_us_0008|AM:VFISX|20250501|9.92|31.4632|9.92|||| funds_us_0008|AM:VFISX|20250502|9.89|31.3784|9.89|||| funds_us_0008|AM:VFISX|20250505|9.89|31.3819|9.89|||| funds_us_0008|AM:VFISX|20250506|9.9|31.417|9.9|||| funds_us_0008|AM:VFISX|20250507|9.9|31.4204|9.9|||| funds_us_0008|AM:VFISX|20250508|9.88|31.3604|9.88|||| funds_us_0008|AM:VFISX|20250509|9.88|31.3709|9.88|||| funds_us_0008|AM:VFISX|20250512|9.85|31.2792|9.85|||| funds_us_0008|AM:VFISX|20250513|9.85|31.2826|9.85|||| funds_us_0008|AM:VFISX|20250514|9.84|31.2543|9.84|||| funds_us_0008|AM:VFISX|20250515|9.86|31.3212|9.86|||| funds_us_0008|AM:VFISX|20250516|9.86|31.3315|9.86|||| funds_us_0008|AM:VFISX|20250519|9.86|31.335|9.86|||| funds_us_0008|AM:VFISX|20250520|9.86|31.3384|9.86|||| funds_us_0008|AM:VFISX|20250521|9.85|31.3101|9.85|||| funds_us_0008|AM:VFISX|20250522|9.86|31.3453|9.86|||| funds_us_0008|AM:VFISX|20250523|9.86|31.3591|9.86|||| funds_us_0008|AM:VFISX|20250527|9.86|31.3625|9.86|||| funds_us_0008|AM:VFISX|20250528|9.86|31.366|9.86|||| funds_us_0008|AM:VFISX|20250529|9.87|31.4011|9.87|||| funds_us_0008|AM:VFISX|20250530|9.88|31.4397|9.88|5886369503|478552671|| funds_us_0008|AM:VFISX|20250602|9.87|31.4148|9.87|||| funds_us_0008|AM:VFISX|20250603|9.86|31.3864|9.86|||| funds_us_0008|AM:VFISX|20250604|9.88|31.4535|9.88|||| funds_us_0008|AM:VFISX|20250605|9.87|31.4252|9.87|||| funds_us_0008|AM:VFISX|20250606|9.84|31.34|9.84|||| funds_us_0008|AM:VFISX|20250609|9.85|31.3753|9.85|||| funds_us_0008|AM:VFISX|20250610|9.85|31.3787|9.85|||| funds_us_0008|AM:VFISX|20250611|9.87|31.4458|9.87|||| funds_us_0008|AM:VFISX|20250612|9.88|31.481|9.88|||| funds_us_0008|AM:VFISX|20250613|9.87|31.4594|9.87|||| funds_us_0008|AM:VFISX|20250616|9.86|31.4309|9.86|||| funds_us_0008|AM:VFISX|20250617|9.87|31.4662|9.87|||| funds_us_0008|AM:VFISX|20250618|9.87|31.473|9.87|||| funds_us_0008|AM:VFISX|20250620|9.88|31.515|9.88|||| funds_us_0008|AM:VFISX|20250623|9.89|31.5502|9.89|||| funds_us_0008|AM:VFISX|20250624|9.9|31.5854|9.9|||| funds_us_0008|AM:VFISX|20250625|9.9|31.5888|9.9|||| funds_us_0008|AM:VFISX|20250626|9.91|31.624|9.91|||| funds_us_0008|AM:VFISX|20250627|9.91|31.6377|9.91|||| funds_us_0008|AM:VFISX|20250630|9.91|31.6377|9.91|5918325016|479762922|| funds_us_0008|AM:VFISX|20250701|9.9|31.6092|9.9|||| funds_us_0008|AM:VFISX|20250702|9.9|31.6126|9.9|||| funds_us_0008|AM:VFISX|20250703|9.88|31.5623|9.88|||| funds_us_0008|AM:VFISX|20250707|9.87|31.5337|9.87|||| funds_us_0008|AM:VFISX|20250708|9.87|31.537|9.87|||| funds_us_0008|AM:VFISX|20250709|9.88|31.5724|9.88|||| funds_us_0008|AM:VFISX|20250710|9.88|31.5758|9.88|||| funds_us_0008|AM:VFISX|20250711|9.87|31.554|9.87|||| funds_us_0008|AM:VFISX|20250714|9.87|31.5573|9.87|||| funds_us_0008|AM:VFISX|20250715|9.86|31.5288|9.86|||| funds_us_0008|AM:VFISX|20250716|9.88|31.596|9.88|||| funds_us_0008|AM:VFISX|20250717|9.87|31.5676|9.87|||| funds_us_0008|AM:VFISX|20250718|9.88|31.6096|9.88|||| funds_us_0008|AM:VFISX|20250721|9.88|31.613|9.88|||| funds_us_0008|AM:VFISX|20250722|9.89|31.6483|9.89|||| funds_us_0008|AM:VFISX|20250723|9.88|31.6198|9.88|||| funds_us_0008|AM:VFISX|20250724|9.87|31.5913|9.87|||| funds_us_0008|AM:VFISX|20250725|9.87|31.6014|9.87|||| funds_us_0008|AM:VFISX|20250728|9.87|31.6048|9.87|||| funds_us_0008|AM:VFISX|20250729|9.88|31.6401|9.88|||| funds_us_0008|AM:VFISX|20250730|9.87|31.615|9.87|||| funds_us_0008|AM:VFISX|20250731|9.87|31.615|9.87|5849708220|469875711|| funds_us_0008|AM:VFISX|20250801|9.92|31.7852|9.92|||| funds_us_0008|AM:VFISX|20250804|9.92|31.7886|9.92|||| funds_us_0008|AM:VFISX|20250805|9.92|31.792|9.92|||| funds_us_0008|AM:VFISX|20250806|9.92|31.7954|9.92|||| funds_us_0008|AM:VFISX|20250807|9.91|31.7667|9.91|||| funds_us_0008|AM:VFISX|20250808|9.9|31.7446|9.9|||| funds_us_0008|AM:VFISX|20250811|9.9|31.748|9.9|||| funds_us_0008|AM:VFISX|20250812|9.91|31.7834|9.91|||| funds_us_0008|AM:VFISX|20250813|9.92|31.8188|9.92|||| funds_us_0008|AM:VFISX|20250814|9.91|31.7901|9.91|||| funds_us_0008|AM:VFISX|20250815|9.9|31.7682|9.9|||| funds_us_0008|AM:VFISX|20250818|9.9|31.7715|9.9|||| funds_us_0008|AM:VFISX|20250819|9.91|31.8069|9.91|||| funds_us_0008|AM:VFISX|20250820|9.91|31.8102|9.91|||| funds_us_0008|AM:VFISX|20250821|9.9|31.7814|9.9|||| funds_us_0008|AM:VFISX|20250822|9.92|31.8554|9.92|||| funds_us_0008|AM:VFISX|20250825|9.91|31.8266|9.91|||| funds_us_0008|AM:VFISX|20250826|9.92|31.862|9.92|||| funds_us_0008|AM:VFISX|20250827|9.93|31.8973|9.93|||| funds_us_0008|AM:VFISX|20250828|9.93|31.9006|9.93|||| funds_us_0008|AM:VFISX|20250829|9.93|31.9105|9.93|5759479692|470420278|| funds_us_0008|AM:VFISX|20250902|9.92|31.8851|9.92|||| funds_us_0008|AM:VFISX|20250903|9.93|31.9205|9.93|||| funds_us_0008|AM:VFISX|20250904|9.94|31.9559|9.94|||| funds_us_0008|AM:VFISX|20250905|9.95|31.9979|9.95|||| funds_us_0008|AM:VFISX|20250908|9.96|32.0333|9.96|||| funds_us_0008|AM:VFISX|20250909|9.95|32.0044|9.95|||| funds_us_0008|AM:VFISX|20250910|9.95|32.0077|9.95|||| funds_us_0008|AM:VFISX|20250911|9.95|32.011|9.95|||| funds_us_0008|AM:VFISX|20250912|9.94|31.9887|9.94|||| funds_us_0008|AM:VFISX|20250915|9.95|32.0241|9.95|||| funds_us_0008|AM:VFISX|20250916|9.95|32.0274|9.95|||| funds_us_0008|AM:VFISX|20250917|9.94|31.9986|9.94|||| funds_us_0008|AM:VFISX|20250918|9.94|32.0019|9.94|||| funds_us_0008|AM:VFISX|20250919|9.94|32.0118|9.94|||| funds_us_0008|AM:VFISX|20250922|9.93|31.983|9.93|||| funds_us_0008|AM:VFISX|20250923|9.94|32.0185|9.94|||| funds_us_0008|AM:VFISX|20250924|9.93|31.9897|9.93|||| funds_us_0008|AM:VFISX|20250925|9.92|31.9609|9.92|||| funds_us_0008|AM:VFISX|20250926|9.92|31.9709|9.92|||| funds_us_0008|AM:VFISX|20250929|9.92|31.9776|9.92|||| funds_us_0008|AM:VFISX|20250930|9.93|32.0097|9.93|5735861430|464563283|| funds_us_0008|AM:VFISX|20251001|9.94|32.0453|9.94|||| funds_us_0008|AM:VFISX|20251002|9.94|32.0486|9.94|||| funds_us_0008|AM:VFISX|20251003|9.93|32.0263|9.93|||| funds_us_0008|AM:VFISX|20251006|9.93|32.0296|9.93|||| funds_us_0008|AM:VFISX|20251007|9.93|32.0329|9.93|||| funds_us_0008|AM:VFISX|20251008|9.93|32.0362|9.93|||| funds_us_0008|AM:VFISX|20251009|9.93|32.0394|9.93|||| funds_us_0008|AM:VFISX|20251010|9.95|32.1136|9.95|||| funds_us_0008|AM:VFISX|20251013|9.95|32.1169|9.95|||| funds_us_0008|AM:VFISX|20251014|9.96|32.1524|9.96|||| funds_us_0008|AM:VFISX|20251015|9.95|32.1234|9.95|||| funds_us_0008|AM:VFISX|20251016|9.97|32.1911|9.97|||| funds_us_0008|AM:VFISX|20251017|9.96|32.1686|9.96|||| funds_us_0008|AM:VFISX|20251020|9.96|32.1719|9.96|||| funds_us_0008|AM:VFISX|20251021|9.96|32.1751|9.96|||| funds_us_0008|AM:VFISX|20251022|9.96|32.1783|9.96|||| funds_us_0008|AM:VFISX|20251023|9.95|32.1493|9.95|||| funds_us_0008|AM:VFISX|20251024|9.96|32.1912|9.96|||| funds_us_0008|AM:VFISX|20251027|9.95|32.1621|9.95|||| funds_us_0008|AM:VFISX|20251028|9.95|32.1653|9.95|||| funds_us_0008|AM:VFISX|20251029|9.93|32.1041|9.93|||| funds_us_0008|AM:VFISX|20251030|9.93|32.1104|9.93|||| funds_us_0008|AM:VFISX|20251031|9.93|32.1104|9.93|5751863067|459558938|| funds_us_0008|AM:VFISX|20251103|9.93|32.1202|9.93|||| funds_us_0008|AM:VFISX|20251104|9.93|32.1234|9.93|||| funds_us_0008|AM:VFISX|20251105|9.92|32.0943|9.92|||| funds_us_0008|AM:VFISX|20251106|9.94|32.1622|9.94|||| funds_us_0008|AM:VFISX|20251107|9.94|32.1717|9.94|||| funds_us_0008|AM:VFISX|20251110|9.93|32.1426|9.93|||| funds_us_0008|AM:VFISX|20251111|9.94|32.1782|9.94|||| funds_us_0008|AM:VFISX|20251112|9.94|32.1814|9.94|||| funds_us_0008|AM:VFISX|20251113|9.93|32.1522|9.93|||| funds_us_0008|AM:VFISX|20251114|9.93|32.1619|9.93|||| funds_us_0008|AM:VFISX|20251117|9.93|32.1651|9.93|||| funds_us_0008|AM:VFISX|20251118|9.93|32.1683|9.93|||| funds_us_0008|AM:VFISX|20251119|9.93|32.1715|9.93|||| funds_us_0008|AM:VFISX|20251120|9.94|32.207|9.94|||| funds_us_0008|AM:VFISX|20251121|9.95|32.249|9.95|||| funds_us_0008|AM:VFISX|20251124|9.95|32.2522|9.95|||| funds_us_0008|AM:VFISX|20251125|9.96|32.2877|9.96|||| funds_us_0008|AM:VFISX|20251126|9.95|32.2617|9.95|||| funds_us_0008|AM:VFISX|20251128|9.95|32.2712|9.95|5873986383|461265852|| funds_us_0008|AM:VFISX|20251201|9.94|32.2419|9.94|||| funds_us_0008|AM:VFISX|20251202|9.94|32.2451|9.94|||| funds_us_0008|AM:VFISX|20251203|9.95|32.2808|9.95|||| funds_us_0008|AM:VFISX|20251204|9.94|32.2515|9.94|||| funds_us_0008|AM:VFISX|20251205|9.93|32.2287|9.93|||| funds_us_0008|AM:VFISX|20251208|9.93|32.2318|9.93|||| funds_us_0008|AM:VFISX|20251209|9.92|32.2026|9.92|||| funds_us_0008|AM:VFISX|20251210|9.94|32.2707|9.94|||| funds_us_0008|AM:VFISX|20251211|9.94|32.2739|9.94|||| funds_us_0008|AM:VFISX|20251212|9.93|32.251|9.93|||| funds_us_0008|AM:VFISX|20251215|9.94|32.2835|9.94||||