| Shareholder Report | 12 Months Ended |
| May 31, 2024 USD ($) Holdings |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Capital Group Growth ETF |
| Entity Central Index Key | 0001869991 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | May 31, 2024 |
| Capital Group Growth ETF (CGGR) | |
| Shareholder Report [Line Items] | |
| Fund Name | Capital Group Growth ETF |
| Class Name | Capital Group Growth ETF |
| Trading Symbol | CGGR |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Capital Group Growth ETF for the period from June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/ETF-literature |
| Additional Information Phone Number | (800) 421-4225 |
| Additional Information Website | capitalgroup.com/ETF-literature |
| Expenses [Text Block] | What were the fund costs for the last year? Fund Cost of $10,000 Investment Costs paid as a percentage of a $10,000 investment CGGR $ 0.39 % |
| Expenses Paid, Amount | $ 46 |
| Expense Ratio, Percent | 0.39% |
| Factors Affecting Performance [Text Block] | Management's discussion of fund performance The fund's shares gained 35.55% on a net asset value (NAV) and market price basis for the year ended May 31, 2024. These results compare with a 28.19% gain for the S&P 500 Index. For information on returns for additional periods, including the fund lifetime, please refer to capitalgroup.com/ETF-returns What factors influenced results During the fund’s fiscal year, the U.S. economy saw a rise in gross domestic product, personal income and employment. Increased supply of goods and a recovery in labor market contributed to easing inflation. However, high interest rates dampened consumer spending on durable goods and investments in multifamily residential properties. Returns from mega-cap companies, particularly those focused on artificial intelligence, drove market returns. Overall, most sectors added to the fund’s positive results, with communications services, industrials, information technology and materials holdings particularly additive. Financials, energy and health care shares were also positive, though below the portfolio’s overall return. Shares in real estate holdings saw negative returns for the period, as the U.S. faced continued interest rate uncertainty. The fund’s small cash holdings likewise detracted from results, though having cash on hand allows the fund’s managers to invest in new holdings when they believe opportunities arise. |
| Performance Past Does Not Indicate Future [Text] | The fund’s past performance is not a predictor of its future performance. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average annual total returns 1 year Since inception 1 Capital Group Growth ETF (at net asset value) 2 35.55 % 12.40 % Capital Group Growth ETF (at market price) 2 35.55 12.46 S&P 500 Index 3 28.19 11.18 1 investment 2 fees When fee 3 d t |
| Performance Inception Date | Feb. 22, 2022 |
| No Deduction of Taxes [Text Block] | The line chart and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Net Assets | $ 5,728,000,000 |
| Holdings Count | Holdings | 105 |
| Advisory Fees Paid, Amount | $ 14,000,000 |
| Investment Company, Portfolio Turnover | 22% |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 105 Total advisory fees paid (in millions) $ Portfolio turnover rate 22 % |
| Holdings [Text Block] | Portfolio *Less than 0.1%. |
