| Form N-CSR Cover | 12 Months Ended |
| Jul. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | iShares Trust |
| Entity Central Index Key | 0001100663 |
| Document Period End Date | Jul. 31, 2024 |
| Shareholder Report | 12 Months Ended | |
| Jul. 31, 2024 USD ($) Holding | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSR | |
| Amendment Flag | false | |
| Registrant Name | iShares Trust | |
| Entity Central Index Key | 0001100663 | |
| Document Period End Date | Jul. 31, 2024 | |
| C000250242 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | iShares Large Cap Max Buffer Jun ETF | |
| Class Name | iShares Large Cap Max Buffer Jun ETF | |
| Trading Symbol | MAXJ | |
| Security Exchange Name | CboeBZX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares Large Cap Max Buffer Jun ETF (the “Fund”) for the period of June 28, 2024 to July 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports | |
| Additional Information Phone Number | 1‑800‑iShares (1‑800‑474‑2737) | |
| Additional Information Website | blackrock.com/fundreports | |
| Expenses [Text Block] | What were the Fund costs for the period? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 Costs paid as a percentage of a iShares Large Cap Max Buffer Jun ETF $ (a)(b) 0.47 % (b)(c) (a) The Fund commenced operations during the reporting period. Expenses for a full reporting period would be higher than the amount shown. (b) Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. (c) Annualized. | |
| Expenses Paid, Amount | $ 4 | [1],[2] |
| Expense Ratio, Percent | 0.47% | [1],[3] |
| Net Assets | $ 72,687,428 | |
| Holdings Count | Holding | 4 | |
| Advisory Fees Paid, Amount | $ 16,255 | |
| Investment Company Portfolio Turnover | 0% | |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % | |
| Holdings [Text Block] | What did the Fund invest in? (as of July 31, 2024) Portfolio composition Asset Type Percent of Equity Funds 97.3 % Purchased Put Options 3.8 % Futures (0.0 ) % (c) Written Call Options (2.7 ) % Other assets, less liabilities 1.6 % Sector allocation (a) Sector Percent of Total (b) Information Technology 31.3 % Financials 13.1 % Health Care 11.9 % Consumer Discretionary 10.0 % Communication Services 8.9 % Industrials 8.4 % Consumer Staples 5.8 % Energy 3.7 % Utilities 2.4 % Real Estate 2.3 % Materials 2.2 % (a) The underlying fund is iShares Core S&P 500 ETF. (b) Excludes money market funds. (c) Rounds to less than 0.1%. | |
| [1]Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.[2]The Fund commenced operations during the reporting period. Expenses for a full reporting period would be higher than the amount shown.[3]Annualized. | ||
| Shareholder Report, Holdings (Details) - C000250242 [Member] | Jul. 31, 2024 | |
| Energy Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 3.70% | [1],[2] |
| Healthcare Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 11.90% | [1],[2] |
| Real Estate Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.30% | [1],[2] |
| Communications Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 8.90% | [1],[2] |
| Consumer Discretionary Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 10% | [1],[2] |
| Consumer Staples Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 5.80% | [1],[2] |
| Industrial Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 8.40% | [1],[2] |
| Information Technology Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 31.30% | [1],[2] |
| Materials Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.20% | [1],[2] |
| Utilities Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 2.40% | [1],[2] |
| Financials [Member] | ||
| Holdings [Line Items] | ||
| Percent of Total Investments | 13.10% | [1],[2] |
| Equity Funds Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 97.30% | |
| Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.80% | |
| Futures [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [3] |
| Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.70%) | |
| Other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.60% | |
| [1]Excludes money market funds.[2]The underlying fund is iShares Core S&P 500 ETF.[3]Rounds to less than 0.1%. | ||
