Shareholder Report |
6 Months Ended | ||||||||||||||||||||||||||
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Jun. 30, 2026
USD ($)
Holding
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| Shareholder Report [Line Items] | |||||||||||||||||||||||||||
| Document Type | N-CSRS | ||||||||||||||||||||||||||
| Amendment Flag | false | ||||||||||||||||||||||||||
| Registrant Name | Schwab Annuity Portfolios | ||||||||||||||||||||||||||
| Entity Central Index Key | 0000918266 | ||||||||||||||||||||||||||
| Entity Investment Company Type | N-1A | ||||||||||||||||||||||||||
| Document Period End Date | Jun. 30, 2026 | ||||||||||||||||||||||||||
| Schwab Government Money Market Portfolio | |||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||
| Fund Name | Schwab Government Money Market Portfolio | ||||||||||||||||||||||||||
| Class Name | Schwab Government Money Market Portfolio | ||||||||||||||||||||||||||
| Trading Symbol | SWPXX | ||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the fund for the period of January 1, 2026, to June 30, 2026. | ||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | ||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the fund at www.schwabassetmanagement.com/prospectus. You can also request this information by calling 1-866-414-6349 or by sending an email request to orders@mysummaryprospectus.com. | ||||||||||||||||||||||||||
| Additional Information Phone Number | 1-866-414-6349 | ||||||||||||||||||||||||||
| Additional Information Email | orders@mysummaryprospectus.com | ||||||||||||||||||||||||||
| Additional Information Website | www.schwabassetmanagement.com/prospectus | ||||||||||||||||||||||||||
| Expenses [Text Block] | FUND COSTS FOR THE LAST six months ENDED June 30, 2026 (BASED ON A HYPOTHETICAL $10,000 INVESTMENT)
* Annualized. |
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| Expenses Paid, Amount | $ 14 | ||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.28% | [1] | |||||||||||||||||||||||||
| Net Assets | $ 249,000,000 | ||||||||||||||||||||||||||
| Holdings Count | Holding | 252 | ||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Statistics
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| Holdings [Text Block] | Portfolio Composition by Security Type % of Investments ![]() Portfolio Composition By Effective Maturity % of Investments ![]() Portfolio holdings may have changed since the report date. 1 Less than 0.05%. 2 Includes the fund’s position in money market mutual funds registered under the Investment Company Act of 1940, as amended. |
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| Schwab S&P 500 Index Portfolio | |||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||
| Fund Name | Schwab S&P 500 Index Portfolio | ||||||||||||||||||||||||||
| Class Name | Schwab S&P 500 Index Portfolio | ||||||||||||||||||||||||||
| Trading Symbol | SWP1Z | ||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the fund for the period of January 1, 2026, to June 30, 2026. | ||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | ||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the fund at www.schwabassetmanagement.com/prospectus. You can also request this information by calling 1-866-414-6349 or by sending an email request to orders@mysummaryprospectus.com. | ||||||||||||||||||||||||||
| Additional Information Phone Number | 1-866-414-6349 | ||||||||||||||||||||||||||
| Additional Information Email | orders@mysummaryprospectus.com | ||||||||||||||||||||||||||
| Additional Information Website | www.schwabassetmanagement.com/prospectus | ||||||||||||||||||||||||||
| Expenses [Text Block] | FUND COSTS FOR THE LAST six months ENDED June 30, 2026 (BASED ON A HYPOTHETICAL $10,000 INVESTMENT)
* Annualized. |
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| Expenses Paid, Amount | $ 2 | ||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.03% | [1] | |||||||||||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | The performance data quoted represents past performance. Past performance does not guarantee future results. | ||||||||||||||||||||||||||
| Average Annual Return [Table Text Block] | Average Annual Total Returns
All total return figures on this page assume dividends and distributions were reinvested. Index figures do not include trading and management costs, which would lower performance. Indices are unmanaged and cannot be invested in directly. Performance results less than one year are not annualized. For index definitions, please see www.schwabassetmanagement.com/glossary. Index ownership — “Standard & Poor’s ® ,” “S&P ® ,” and “S&P 500 ® ” are registered trademarks of Standard & Poor’s Financial Services LLC (S&P), and “Dow Jones ® ” is a registered trademark of Dow Jones Trademark Holdings LLC (Dow Jones) and have been licensed for use by S&P Dow Jones Indices LLC and its affiliates and sublicensed for certain purposes by Charles Schwab Investment Management, Inc. The “S&P 500 ® Index” is a product of S&P Dow Jones Indices LLC or its affiliates, and has been licensed for use by Charles Schwab Investment Management, Inc. The Schwab S&P 500 Index Portfolio is not sponsored, endorsed, sold or promoted by S&P Dow Jones Indices LLC, Dow Jones, S&P, or their respective affiliates, and neither S&P Dow Jones Indices LLC, Dow Jones, S&P, nor their respective affiliates make any representation regarding the advisability of investing in the fund. 1 Fund performance does not reflect the additional fees and expenses imposed by the insurance company under the variable insurance product contract. If those contract fees and expenses were included, the performance would be less than that shown. Please refer to the variable insurance product prospectus for a complete listing of these expenses. |
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| Performance Inception Date | Nov. 01, 1996 | ||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | To obtain performance information current to the most recent month end, please visit www.schwabassetmanagement.com/prospectus . |
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| Net Assets | $ 3,690,000,000 | ||||||||||||||||||||||||||
| Holdings Count | Holding | 503 | ||||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 5.00% | ||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Statistics
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| Holdings [Text Block] | Sector Weightings % of Investments 1 ![]() Top Equity Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. The Sector/Industry classifications in this report use the Global Industry Classification Standard (GICS) which was developed by and is the exclusive property of MSCI Inc. (MSCI) and Standard & Poor’s (S&P). GICS is a service mark of MSCI and S&P and has been licensed for use by Charles Schwab & Co., Inc. 1 Excludes derivatives. 2 Less than 0.05%. 3 Includes the fund’s position in money market mutual funds registered under the Investment Company Act of 1940, as amended. |
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| Largest Holdings [Text Block] | Top Equity Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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| Schwab VIT Balanced Portfolio | |||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||
| Fund Name | Schwab VIT Balanced Portfolio | ||||||||||||||||||||||||||
| Class Name | Schwab VIT Balanced Portfolio | ||||||||||||||||||||||||||
| Trading Symbol | SWB1Z | ||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the fund for the period of January 1, 2026, to June 30, 2026. | ||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | ||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the fund at www.schwabassetmanagement.com/prospectus. You can also request this information by calling 1-866-414-6349 or by sending an email request to orders@mysummaryprospectus.com. | ||||||||||||||||||||||||||
| Additional Information Phone Number | 1-866-414-6349 | ||||||||||||||||||||||||||
| Additional Information Email | orders@mysummaryprospectus.com | ||||||||||||||||||||||||||
| Additional Information Website | www.schwabassetmanagement.com/prospectus | ||||||||||||||||||||||||||
| Expenses [Text Block] | FUND COSTS FOR THE LAST six months ENDED June 30, 2026 (BASED ON A HYPOTHETICAL $10,000 INVESTMENT)
* Annualized. |
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| Expenses Paid, Amount | $ 27 | ||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.52% | [1] | |||||||||||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | The performance data quoted represents past performance. Past performance does not guarantee future results. | ||||||||||||||||||||||||||
| Average Annual Return [Table Text Block] | Average Annual Total Returns
All total return figures on this page assume dividends and distributions were reinvested. Index figures do not include trading and management costs, which would lower performance. Indices are unmanaged and cannot be invested in directly. Performance results less than one year are not annualized. For index definitions, please see www.schwabassetmanagement.com/glossary. 1 Fund expenses may have been partially absorbed by the investment adviser and its affiliates. Without these reductions, the fund’s returns would have been lower. Fund performance does not reflect the additional fees and expenses imposed by the insurance company under the variable insurance product contract. If those contract fees and expenses were included, the performance would be less than that shown. Please refer to the variable insurance product prospectus for a complete listing of these expenses. |
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| Performance Inception Date | Jul. 25, 2012 | ||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | To obtain performance information current to the most recent month end, please visit www.schwabassetmanagement.com/prospectus . |
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| Net Assets | $ 81,000,000 | ||||||||||||||||||||||||||
| Holdings Count | Holding | 10 | ||||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 8.00% | ||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Statistics
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| Holdings [Text Block] | Asset Class Weightings % of Investments ![]() Top Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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| Largest Holdings [Text Block] | Top Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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| Schwab VIT Balanced with Growth Portfolio | |||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||
| Fund Name | Schwab VIT Balanced with Growth Portfolio | ||||||||||||||||||||||||||
| Class Name | Schwab VIT Balanced with Growth Portfolio | ||||||||||||||||||||||||||
| Trading Symbol | SWC1Z | ||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the fund for the period of January 1, 2026, to June 30, 2026. | ||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | ||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the fund at www.schwabassetmanagement.com/prospectus. You can also request this information by calling 1-866-414-6349 or by sending an email request to orders@mysummaryprospectus.com. | ||||||||||||||||||||||||||
| Additional Information Phone Number | 1-866-414-6349 | ||||||||||||||||||||||||||
| Additional Information Email | orders@mysummaryprospectus.com | ||||||||||||||||||||||||||
| Additional Information Website | www.schwabassetmanagement.com/prospectus | ||||||||||||||||||||||||||
| Expenses [Text Block] | FUND COSTS FOR THE LAST six months ENDED June 30, 2026 (BASED ON A HYPOTHETICAL $10,000 INVESTMENT)
* Annualized. |
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| Expenses Paid, Amount | $ 25 | ||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.48% | [1] | |||||||||||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | The performance data quoted represents past performance. Past performance does not guarantee future results. | ||||||||||||||||||||||||||
| Average Annual Return [Table Text Block] | Average Annual Total Returns
All total return figures on this page assume dividends and distributions were reinvested. Index figures do not include trading and management costs, which would lower performance. Indices are unmanaged and cannot be invested in directly. Performance results less than one year are not annualized. For index definitions, please see www.schwabassetmanagement.com/glossary. 1 Fund expenses may have been partially absorbed by the investment adviser and its affiliates. Without these reductions, the fund’s returns would have been lower. Fund performance does not reflect the additional fees and expenses imposed by the insurance company under the variable insurance product contract. If those contract fees and expenses were included, the performance would be less than that shown. Please refer to the variable insurance product prospectus for a complete listing of these expenses. |
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| Performance Inception Date | Jul. 25, 2012 | ||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | To obtain performance information current to the most recent month end, please visit www.schwabassetmanagement.com/prospectus . |
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| Net Assets | $ 187,000,000 | ||||||||||||||||||||||||||
| Holdings Count | Holding | 10 | ||||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 9.00% | ||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Statistics
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| Holdings [Text Block] | Asset Class Weightings % of Investments ![]() Top Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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| Largest Holdings [Text Block] | Top Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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| Schwab VIT Growth Portfolio | |||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||
| Fund Name | Schwab VIT Growth Portfolio | ||||||||||||||||||||||||||
| Class Name | Schwab VIT Growth Portfolio | ||||||||||||||||||||||||||
| Trading Symbol | SWG1Z | ||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the fund for the period of January 1, 2026, to June 30, 2026. | ||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | ||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the fund at www.schwabassetmanagement.com/prospectus. You can also request this information by calling 1-866-414-6349 or by sending an email request to orders@mysummaryprospectus.com. | ||||||||||||||||||||||||||
| Additional Information Phone Number | 1-866-414-6349 | ||||||||||||||||||||||||||
| Additional Information Email | orders@mysummaryprospectus.com | ||||||||||||||||||||||||||
| Additional Information Website | www.schwabassetmanagement.com/prospectus. | ||||||||||||||||||||||||||
| Expenses [Text Block] | FUND COSTS FOR THE LAST six months ENDED June 30, 2026 (BASED ON A HYPOTHETICAL $10,000 INVESTMENT)
* Annualized. |
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| Expenses Paid, Amount | $ 25 | ||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.48% | [1] | |||||||||||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | The performance data quoted represents past performance. Past performance does not guarantee future results. | ||||||||||||||||||||||||||
| Average Annual Return [Table Text Block] | Average Annual Total Returns
All total return figures on this page assume dividends and distributions were reinvested. Index figures do not include trading and management costs, which would lower performance. Indices are unmanaged and cannot be invested in directly. Performance results less than one year are not annualized. For index definitions, please see www.schwabassetmanagement.com/glossary. 1 Fund expenses may have been partially absorbed by the investment adviser and its affiliates. Without these reductions, the fund’s returns would have been lower. Fund performance does not reflect the additional fees and expenses imposed by the insurance company under the variable insurance product contract. If those contract fees and expenses were included, the performance would be less than that shown. Please refer to the variable insurance product prospectus for a complete listing of these expenses. |
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| Performance Inception Date | Jul. 25, 2012 | ||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | To obtain performance information current to the most recent month end, please visit www.schwabassetmanagement.com/prospectus . |
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| Net Assets | $ 191,000,000 | ||||||||||||||||||||||||||
| Holdings Count | Holding | 8 | ||||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 7.00% | ||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Statistics
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| Holdings [Text Block] | Asset Class Weightings % of Investments ![]() Top Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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| Largest Holdings [Text Block] | Top Holdings % of Net Assets ![]() Portfolio holdings may have changed since the report date. |
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