| N-2 | 6 Months Ended | |
| Dec. 31, 2023 $ / shares shares | ||
| Cover [Abstract] | ||
| Entity Central Index Key | 0001756908 | |
| Amendment Flag | false | |
| Document Type | N-CSRS | |
| Entity Registrant Name | PIMCO Dynamic Income Strategy Fund | |
| General Description of Registrant [Abstract] | ||
| Investment Objectives and Practices [Text Block] | Investment Objective and Strategy Overview The Fund seeks current income as a primary objective and capital appreciation as a secondary objective. Fund Insights at NAV The following affected performance (on a gross basis) during the reporting period: » Exposure to midstream equities contributed to absolute performance, as the asset class posted positive returns. » Exposure to a U.S. liquefied natural gas supplier, contributed to absolute performance, as the security posted positive returns. » Exposure to high yield corporate credit contributed to absolute performance, as the asset class posted positive returns. » There were no material detractors for this Fund. | |
| Share Price | $ 20.48 | [1] |
| NAV Per Share | $ 22.54 | [1] |
| Latest Premium (Discount) to NAV [Percent] | (9.14%) | [1] |
| Common Shares [Member] | ||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||
| Outstanding Security, Title [Text Block] | Common Shares | |
| Outstanding Security, Held [Shares] | shares | 44,707 | |
| [1]Performance quoted represents past performance. Past performance is not a guarantee or a reliable indicator of future results. Current performance may be lower or higher than performance shown. Investment return and the principal value of an investment will fluctuate. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the sale of Fund shares. Total return, market price, NAV, market price distribution rate, and NAV distribution rate will fluctuate with changes in market conditions. Performance current to the most recent month-end is available at www.pimco.com or via (844) 33-PIMCO. Performance is calculated assuming all dividends and distributions are reinvested at prices obtained under the Fund’s dividend reinvestment plan. Performance does not reflect any brokerage commissions in connection with the purchase or sale of Fund shares. Performance of the Index is shown in light of a requirement by the Securities and Exchange Commission that the performance of an appropriate broad-based securities market index be disclosed. However, the Fund is not managed to an index nor should the Index be viewed as a “benchmark” for the Fund’s performance. The Index is not intended to be indicative of the Fund’s investment strategies, portfolio components or past or future performance. Please see Additional Information Regarding the Fund for a description of the Fund’s principal investment strategies. | ||
