Annual Operating Expenses {- Fidelity® Series Commodity Strategy Fund} - 07.31 Fidelity Series Commodity Strategy Fund Series PRO-07 - Fidelity® Series Commodity Strategy Fund - Fidelity Series Commodity Strategy Fund-Default	Sep. 29, 2020
Operating Expenses:
Management fee	none
Distribution and/or Service (12b-1) fees	none
Other expenses	0.01%
Total annual operating expenses	0.01%	[1]

[1] ^(a) Differs from the ratios of expenses to average net assets in the Financial Highlights section of the prospectus because of acquired fund fees and expenses. For the period, acquired fund fees and expenses are less than 0.01% and are included in other expenses.