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Annual Total Returns[BarChart] - Vanguard Cash Reserves Federal Money Market Fund - Admiral Shares
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
Total 0.20% 0.14% 0.11% 0.06% 0.05% 0.11% 0.55% 1.08% 2.01% 2.29%