00000353732017-12-302017-12-300000035373bmi:S000007131Memberbmi:NFFidelityMunicipalIncomeFundAMCIPRO02Member2017-12-302017-12-30
iso4217:USD
xbrli:pure
xbrli:shares
iso4217:USD
xbrli:shares
0000035373FIDELITY MUNICIPAL TRUST4972018-06-012018-06-012017-10-31false2017-12-30<p style="font: normal 11pt 'Times New Roman', serif; color: #000000;">The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund. In addition to the fees and expenses described below, your broker may also require you to pay brokerage commissions on purchases and sales of certain share classes of the fund.</p>