|
Investor Shares
|
Admiral Shares
|
Sales Charge (Load) Imposed on Purchases
|
None
|
None
|
Purchase Fee
|
None
|
None
|
Sales Charge (Load) Imposed on Reinvested Dividends
|
None
|
None
|
Redemption Fee
|
None
|
None
|
Account Service Fee Per Year
(for certain fund account balances below $1,000,000)
|
$20
|
$20
|
|
Investor Shares
|
Admiral Shares
|
Management Fees
|
0.18%
|
0.09%
|
12b-1 Distribution Fee
|
None
|
None
|
Other Expenses
|
0.02%
|
0.01%
|
Total Annual Fund Operating Expenses
|
0.20%
|
0.10%
|
|
1 Year
|
3 Years
|
5 Years
|
10 Years
|
Investor Shares
|
$20
|
$64
|
$113
|
$255
|
Admiral Shares
|
$10
|
$32
|
$56
|
$128
|
|
Total Return
|
Quarter
|
Highest
|
20.84%
|
March 31, 2020
|
Lowest
|
-13.28%
|
March 31, 2021
|
|
1 Year
|
5 Years
|
10 Years
|
Vanguard Long-Term Treasury Fund Investor Shares
|
|
|
|
Return Before Taxes
|
-29.58%
|
-2.34%
|
0.46%
|
Return After Taxes on Distributions
|
-30.32
|
-3.85
|
-1.11
|
Return After Taxes on Distributions and Sale of Fund Shares
|
-17.46
|
-1.98
|
-0.04
|
Vanguard Long-Term Treasury Fund Admiral Shares
|
|
|
|
Return Before Taxes
|
-29.51%
|
-2.24%
|
0.56%
|
Bloomberg U.S. Long Treasury Bond Index
(reflects no deduction for fees, expenses, or taxes)
|
-29.26%
|
-2.20%
|
0.60%
|
Bloomberg U.S. Aggregate Bond Index
(reflects no deduction for fees, expenses, or taxes)
|
-13.01
|
0.02
|
1.06
|