XML 25 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName FIDELITY SELECT PORTFOLIOS
Prospectus Date rr_ProspectusDate Sep. 29, 2018
Document Creation Date dei_DocumentCreationDate Sep. 28, 2018