S000089990 [Member] Fees and Expenses - Russell Investments U.S. Small Cap Equity ETF	Sep. 30, 2025
Prospectus [Line Items]
Expense Heading [Optional Text]	Fees and Expenses of the Fund
Expense Narrative [Text Block]	The following tables describe the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund. In addition to the fees and expenses described below, you may also be required to pay brokerage commissions on purchases and sales of Shares of the Fund.
Other Expenses, New Fund, Based on Estimates [Text]	The Fund’s “Other Expenses” have been estimated to reflect expenses expected to be incurred during the first fiscal year.
Operating Expenses Caption [Optional Text]	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Expense Example [Heading]	Example
Expense Example Narrative [Text Block]	This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes your investment has a 5% return each year and that operating expenses remain the same. The calculation of costs takes into account the effect of any current fee waiver for the contractual period. Although your actual costs may be higher or lower, under these assumptions your costs would be:
Portfolio Turnover [Heading]	Portfolio Turnover
Portfolio Turnover [Text Block]	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. For the period May 13, 2025 through September 30, 2025, the Fund’s portfolio turnover rate was 30% of the average value of its portfolio.
Portfolio Turnover, Rate	30.00%

S000089990 [Member] Fees and Expenses - Russell Investments U.S. Small Cap Equity ETF

Sep. 30, 2025

Fees and Expenses of the Fund

The following tables describe the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund. In addition to the fees and expenses described below, you may also be required to pay brokerage commissions on purchases and sales of Shares of the Fund.

Other Expenses, New Fund, Based on Estimates [Text]

The Fund’s “Other Expenses” have been estimated to reflect expenses expected to be incurred during the first fiscal year.

Operating Expenses Caption [Optional Text]

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Example [Heading]

Example

Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes your investment has a 5% return each year and that operating expenses remain the same. The calculation of costs takes into account the effect of any current fee waiver for the contractual period.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Portfolio Turnover [Heading]

Portfolio Turnover

Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. For the period May 13, 2025 through September 30, 2025, the Fund’s portfolio turnover rate was 30% of the average value of its portfolio.

Portfolio Turnover, Rate

30.00%