| Form N-CSR Cover | 6 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Clayton Street Trust |
| Entity Central Index Key | 0001660765 |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 6 Months Ended |
| Jun. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Clayton Street Trust |
| Entity Central Index Key | 0001660765 |
| Document Period End Date | Jun. 30, 2024 |
| C000166589 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Protective Life Dynamic Allocation Series - Moderate Portfolio |
| Class Name | Protective Life Dynamic Allocation Series - Moderate Portfolio |
| No Trading Symbol Flag | true |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Protective Life Dynamic Allocation Series - Moderate Portfolio (the “Portfolio”) for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Portfolio at https://janushenderson.com/clayton-street-trust |
| Additional Information Phone Number | 1-877-335-2687 |
| Additional Information Website | https://janushenderson.com/clayton-street-trust |
| Expenses [Text Block] | What were the costs for the (Based on a hypothetical $10,000 investment) Portfolio Cost of a Costs paid as a percentage Protective Life Dynamic Allocation Series - Moderate Portfolio $ 0.81 % |
| Expenses Paid, Amount | $ 41 |
| Expense Ratio, Percent | 0.81% |
| Net Assets | $ 709,000,000 |
| Holdings Count | Holding | 10 |
| Investment Company Portfolio Turnover | 29% |
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Net assets $ % Number of portfolio holdings $ % Portfolio turnover rate $ % |
| Holdings [Text Block] | What did the Portfolio invest in? Asset Allocation (% of net assets) Investment Companies 100.0 ) Investments Purchased with Cash Collateral from Securities Lending 5.1 ) Other (5.1 ) |
| C000166590 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Protective Life Dynamic Allocation Series - Growth Portfolio |
| Class Name | Protective Life Dynamic Allocation Series - Growth Portfolio |
| No Trading Symbol Flag | true |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Protective Life Dynamic Allocation Series - Growth Portfolio (the “Portfolio”) for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Portfolio at https://janushenderson.com/clayton-street-trust |
| Additional Information Phone Number | 1-877-335-2687 |
| Additional Information Website | https://janushenderson.com/clayton-street-trust |
| Expenses [Text Block] | What were the costs for the (Based on a hypothetical $10,000 investment) Portfolio Cost of a Costs paid as a percentage Protective Life Dynamic Allocation Series - Growth Portfolio $ 0.83 % |
| Expenses Paid, Amount | $ 43 |
| Expense Ratio, Percent | 0.83% |
| Net Assets | $ 46,000,000 |
| Holdings Count | Holding | 9 |
| Investment Company Portfolio Turnover | 40% |
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Net assets $ % Number of portfolio holdings $ % Portfolio turnover rate $ % |
| Holdings [Text Block] | What did the Portfolio invest in? Asset Allocation (% of net assets) Investment Companies 100.1 ) Investments Purchased with Cash Collateral from Securities Lending 20.9 ) Other (21.0 ) |
| C000166588 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Protective Life Dynamic Allocation Series - Conservative Portfolio |
| Class Name | Protective Life Dynamic Allocation Series - Conservative Portfolio |
| No Trading Symbol Flag | true |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Protective Life Dynamic Allocation Series - Conservative Portfolio (the “Portfolio”) for the period of January 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Portfolio at https://janushenderson.com/clayton-street-trust |
| Additional Information Phone Number | 1-877-335-2687 |
| Additional Information Website | https://janushenderson.com/clayton-street-trust |
| Expenses [Text Block] | What were the costs for the (Based on a hypothetical $10,000 investment) Portfolio Cost of a Costs paid as a percentage Protective Life Dynamic Allocation Series - Conservative Portfolio $ 0.85 % |
| Expenses Paid, Amount | $ 43 |
| Expense Ratio, Percent | 0.85% |
| Net Assets | $ 42,000,000 |
| Holdings Count | Holding | 10 |
| Investment Company Portfolio Turnover | 25% |
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Net assets $ % Number of portfolio holdings $ % Portfolio turnover rate $ % |
| Holdings [Text Block] | What did the Portfolio invest in? Asset Allocation (% of net assets) Investment Companies 100.1 ) Investments Purchased with Cash Collateral from Securities Lending 10.7 ) Other (10.8 ) |
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 |
| C000166589 [Member] | Other Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (5.10%) |
| C000166589 [Member] | Investment Companies [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100% |
| C000166589 [Member] | Investments Purchased with Cash Collateral from Securities Lending [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000166590 [Member] | Other Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (21.00%) |
| C000166590 [Member] | Investment Companies [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100.10% |
| C000166590 [Member] | Investments Purchased with Cash Collateral from Securities Lending [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.90% |
| C000166588 [Member] | Other Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (10.80%) |
| C000166588 [Member] | Investment Companies [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100.10% |
| C000166588 [Member] | Investments Purchased with Cash Collateral from Securities Lending [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
