Shareholder Report, Holdings (Details) - Fidelity Nasdaq Composite Index Fund | May 31, 2024 |
TH0Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 11.40% |
TH1Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 10.90% |
TH2Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 10.20% |
TH3Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 6.80% |
TH4Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 3.90% |
TH5Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 3.80% |
TH6Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 3.60% |
TH7Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 2.40% |
TH8Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 2.20% |
TH9Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 1.40% |
MSFinancialsSectorMember | |
Holdings [Line Items] | |
Percent of Net Asset Value | 3.70% |
Information Technology Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 50.10% |
Healthcare Sector | |
Holdings [Line Items] | |
Percent of Net Asset Value | 6.60% |
Real Estate Sector | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.80% |
Industrial Sector Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 4.10% |
Materials Sector Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 1% |
Consumer Discretionary Sector Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 13.30% |
Consumer Staples Sector Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 3.90% |
Communications Sector Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 14.90% |
Energy Sector | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.60% |
Utilities Sector Member | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.80% |
United States | |
Holdings [Line Items] | |
Percent of Net Asset Value | 96.60% |
China | |
Holdings [Line Items] | |
Percent of Net Asset Value | 1.10% |
Brazil | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.50% |
Netherlands | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.50% |
United Kingdom | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.50% |
Israel | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.30% |
Canada | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.20% |
Kazakhstan | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.10% |
Switzerland | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.10% |
OtherMember | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.10% |
AACommonStocksMember | |
Holdings [Line Items] | |
Percent of Net Asset Value | 99.80% |
AAPreferredStocksMember | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0% |
AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
Holdings [Line Items] | |
Percent of Net Asset Value | 0.20% |