| Form N-CSR Cover | 12 Months Ended |
| Sep. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | SELECT SECTOR SPDR TRUST |
| Entity Central Index Key | 0001064641 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Sep. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | SELECT SECTOR SPDR TRUST |
| Entity Central Index Key | 0001064641 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| C000201048 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Communication Services Select Sector SPDR Fund |
| Trading Symbol | XLC |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Communication Services Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLC. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLC |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Communication Services Select Sector SPDR Fund $10 0.08% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by speculation about inflation and when and by how much the U.S. Federal Reserve (“the Fed”) and other central banks would begin cutting rates. Alongside this interest rate story was the continuing prospect of an artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. And even though markets moved sideways in 3Q24 as investors rotated out of growth and tech stocks and back into value and small cap securities, they could not undo the reporting period’s significant influence driven by those mega-cap high-flyers. With the Fed finally cutting rates in September and by 50 bps, the year-long speculation about the timing of the Fed’s directional shift was finally put to rest, and markets ended the year-long period with significant gains and at the highest levels. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLC S&P 500 Index Communications Services Select Sector Index 06/18/18 $10,000 $10,000 $10,000 06/30/18 $9,880 $9,804 $9,882 07/31/18 $9,689 $10,169 $9,690 08/31/18 $9,836 $10,500 $9,839 09/30/18 $9,822 $10,560 $9,825 10/31/18 $9,241 $9,838 $9,245 11/30/18 $9,037 $10,039 $9,042 12/31/18 $8,302 $9,132 $8,305 01/31/19 $9,280 $9,864 $9,287 02/28/19 $9,234 $10,181 $9,242 03/31/19 $9,426 $10,379 $9,432 04/30/19 $10,097 $10,799 $10,106 05/31/19 $9,493 $10,113 $9,502 06/30/19 $9,943 $10,825 $9,953 07/31/19 $10,257 $10,981 $10,269 08/31/19 $10,013 $10,807 $10,025 09/30/19 $10,025 $11,009 $10,038 10/31/19 $10,244 $11,248 $10,259 11/30/19 $10,638 $11,656 $10,655 12/31/19 $10,894 $12,008 $10,912 01/31/20 $10,948 $12,003 $10,968 02/29/20 $10,312 $11,015 $10,330 03/31/20 $8,998 $9,654 $9,015 04/30/20 $10,234 $10,892 $10,256 05/31/20 $10,999 $11,411 $11,024 06/30/20 $11,026 $11,638 $11,051 07/31/20 $11,845 $12,294 $11,872 08/31/20 $12,907 $13,178 $12,939 09/30/20 $12,136 $12,677 $12,165 10/31/20 $12,087 $12,340 $12,117 11/30/20 $13,353 $13,691 $13,391 12/31/20 $13,816 $14,217 $13,857 01/31/21 $13,695 $14,073 $13,736 02/28/21 $14,655 $14,461 $14,703 03/31/21 $15,027 $15,095 $15,077 04/30/21 $15,996 $15,900 $16,052 05/31/21 $16,146 $16,011 $16,203 06/30/21 $16,628 $16,385 $16,689 07/31/21 $16,924 $16,774 $16,989 08/31/21 $17,583 $17,285 $17,651 09/30/21 $16,489 $16,481 $16,554 10/31/21 $16,522 $17,635 $16,588 11/30/21 $15,513 $17,513 $15,577 12/31/21 $16,012 $18,298 $16,080 01/31/22 $15,246 $17,351 $15,311 02/28/22 $14,109 $16,832 $14,168 03/31/22 $14,208 $17,457 $14,271 04/30/22 $12,210 $15,934 $12,262 05/31/22 $12,438 $15,964 $12,492 06/30/22 $11,241 $14,646 $11,291 07/31/22 $11,676 $15,996 $11,729 08/31/22 $11,266 $15,344 $11,318 09/30/22 $9,941 $13,931 $9,984 10/31/22 $10,009 $15,059 $10,048 11/30/22 $10,696 $15,900 $10,740 12/31/22 $9,983 $14,984 $10,024 01/31/23 $11,461 $15,926 $11,513 02/28/23 $11,133 $15,537 $11,185 03/31/23 $12,098 $16,107 $12,157 04/30/23 $12,498 $16,359 $12,560 05/31/23 $12,984 $16,430 $13,050 06/30/23 $13,602 $17,516 $13,672 07/31/23 $14,373 $18,078 $14,449 08/31/23 $14,154 $17,790 $14,230 09/30/23 $13,742 $16,942 $13,816 10/31/23 $13,560 $16,586 $13,628 11/30/23 $14,615 $18,101 $14,691 12/31/23 $15,259 $18,923 $15,341 01/31/24 $15,940 $19,241 $16,029 02/29/24 $16,686 $20,268 $16,782 03/31/24 $17,198 $20,920 $17,299 04/30/24 $16,403 $20,066 $16,499 05/31/24 $17,527 $21,061 $17,631 06/30/24 $18,082 $21,817 $18,191 07/31/24 $18,125 $22,082 $18,236 08/31/24 $18,438 $22,618 $18,550 09/30/24 $19,146 $23,101 $19,266 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years Since Inception 6/18/18 XLC 39.32% 13.81% 10.88% S&P 500 Index 36.35% 15.98% 14.25% Communications Services Select Sector Index 39.45% 13.93% 11.00% |
| Performance Inception Date | Jun. 18, 2018 |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 18,637,825,830 |
| Holdings Count | Holding | 24 |
| Advisory Fees Paid, Amount | $ 5,220,288 |
| InvestmentCompanyPortfolioTurnover | 25% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $18,637,825,830 Number of Portfolio Holdings 24 Portfolio Turnover Rate 25% Total Advisory Fees Paid $5,220,288 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Interactive Media & Services 41.6% Entertainment 25.2% Media 19.9% Diversified Telecommunication Services 8.8% Wireless Telecommunication Services 4.4% Top Ten Holdings Holdings % Value of Total Net Assets Meta Platforms, Inc., Class A 20.3% Alphabet, Inc., Class A 10.8% Alphabet, Inc., Class C 8.9% Netflix, Inc. 6.0% Walt Disney Co. 4.6% Comcast Corp., Class A 4.6% T-Mobile U.S., Inc. 4.4% AT&T, Inc. 4.4% Verizon Communications, Inc. 4.4% Take-Two Interactive Software, Inc. 4.3% |
| Material Fund Change [Text Block] | |
| C000017594 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Consumer Discretionary Select Sector SPDR Fund |
| Trading Symbol | XLY |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Consumer Discretionary Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLY. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLY |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Consumer Discretionary Select Sector SPDR Fund $9 0.08% |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund for the reporting period was driven by a cut in interest rates, easing inflation, positive earnings growth, Artificial Intelligence and other Technology-centered tailwinds and a resilient economy. During the reporting period, the Fund's use of their current investment strategies did not cause the Fund's performance to materially deviate from the manager's expectations considering the uncertainty of the markets. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLY S&P 500 Index Consumer Discretionary Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,212 $10,244 $10,215 11/30/14 $10,764 $10,520 $10,769 12/31/14 $10,866 $10,493 $10,874 01/31/15 $10,534 $10,178 $10,542 02/28/15 $11,436 $10,763 $11,449 03/31/15 $11,382 $10,593 $11,396 04/30/15 $11,376 $10,695 $11,391 05/31/15 $11,525 $10,832 $11,542 06/30/15 $11,596 $10,622 $11,615 07/31/15 $12,151 $10,845 $12,174 08/31/15 $11,369 $10,191 $11,389 09/30/15 $11,298 $9,939 $11,318 10/31/15 $12,319 $10,777 $12,345 11/30/15 $12,289 $10,809 $12,315 12/31/15 $11,946 $10,638 $11,973 01/31/16 $11,336 $10,111 $11,361 02/29/16 $11,378 $10,097 $11,404 03/31/16 $12,131 $10,782 $12,165 04/30/16 $12,146 $10,824 $12,182 05/31/16 $12,163 $11,018 $12,199 06/30/16 $12,019 $11,047 $12,054 07/31/16 $12,565 $11,454 $12,603 08/31/16 $12,408 $11,470 $12,447 09/30/16 $12,369 $11,472 $12,409 10/31/16 $12,079 $11,263 $12,118 11/30/16 $12,643 $11,680 $12,687 12/31/16 $12,649 $11,911 $12,695 01/31/17 $13,182 $12,137 $13,233 02/28/17 $13,437 $12,619 $13,491 03/31/17 $13,711 $12,633 $13,768 04/30/17 $14,043 $12,763 $14,104 05/31/17 $14,199 $12,943 $14,262 06/30/17 $14,028 $13,023 $14,091 07/31/17 $14,289 $13,291 $14,355 08/31/17 $14,025 $13,332 $14,092 09/30/17 $14,142 $13,607 $14,210 10/31/17 $14,438 $13,925 $14,511 11/30/17 $15,168 $14,352 $15,245 12/31/17 $15,529 $14,511 $15,612 01/31/18 $16,976 $15,342 $17,071 02/28/18 $16,388 $14,777 $16,479 03/31/18 $16,005 $14,401 $16,095 04/30/18 $16,382 $14,456 $16,475 05/31/18 $16,706 $14,804 $16,803 06/30/18 $17,305 $14,896 $17,410 07/31/18 $17,620 $15,450 $17,729 08/31/18 $18,521 $15,953 $18,639 09/30/18 $18,615 $16,044 $18,737 10/31/18 $16,743 $14,947 $16,853 11/30/18 $17,151 $15,252 $17,266 12/31/18 $15,786 $13,875 $15,890 01/31/19 $17,341 $14,987 $17,459 02/28/19 $17,573 $15,468 $17,695 03/31/19 $18,213 $15,769 $18,344 04/30/19 $19,206 $16,407 $19,348 05/31/19 $17,753 $15,364 $17,884 06/30/19 $19,151 $16,447 $19,297 07/31/19 $19,388 $16,684 $19,538 08/31/19 $19,218 $16,419 $19,369 09/30/19 $19,443 $16,727 $19,596 10/31/19 $19,470 $17,089 $19,624 11/30/19 $19,715 $17,709 $19,874 12/31/19 $20,272 $18,244 $20,440 01/31/20 $20,263 $18,237 $20,432 02/29/20 $18,708 $16,735 $18,863 03/31/20 $15,917 $14,668 $16,051 04/30/20 $18,935 $16,549 $19,099 05/31/20 $20,184 $17,337 $20,361 06/30/20 $20,790 $17,682 $20,975 07/31/20 $22,282 $18,679 $22,483 08/31/20 $24,435 $20,021 $24,660 09/30/20 $23,962 $19,260 $24,182 10/31/20 $23,308 $18,748 $23,524 11/30/20 $25,634 $20,801 $25,875 12/31/20 $26,268 $21,600 $26,521 01/31/21 $26,472 $21,382 $26,729 02/28/21 $26,355 $21,972 $26,614 03/31/21 $27,481 $22,934 $27,756 04/30/21 $29,259 $24,158 $29,555 05/31/21 $28,266 $24,327 $28,554 06/30/21 $29,256 $24,895 $29,560 07/31/21 $29,556 $25,486 $29,865 08/31/21 $30,089 $26,261 $30,407 09/30/21 $29,458 $25,040 $29,771 10/31/21 $32,996 $26,794 $33,351 11/30/21 $33,553 $26,608 $33,917 12/31/21 $33,580 $27,801 $33,948 01/31/22 $30,406 $26,362 $30,742 02/28/22 $29,140 $25,573 $29,464 03/31/22 $30,433 $26,522 $30,775 04/30/22 $26,812 $24,209 $27,113 05/31/22 $25,425 $24,254 $25,713 06/30/22 $22,669 $22,252 $22,924 07/31/22 $26,845 $24,304 $27,155 08/31/22 $25,652 $23,312 $25,947 09/30/22 $23,547 $21,165 $23,815 10/31/22 $23,807 $22,879 $24,080 11/30/22 $24,165 $24,158 $24,446 12/31/22 $21,409 $22,766 $21,649 01/31/23 $24,640 $24,196 $24,921 02/28/23 $24,125 $23,606 $24,400 03/31/23 $24,861 $24,473 $25,148 04/30/23 $24,574 $24,855 $24,860 05/31/23 $25,205 $24,963 $25,500 06/30/23 $28,294 $26,612 $28,635 07/31/23 $28,933 $27,467 $29,284 08/31/23 $28,446 $27,030 $28,791 09/30/23 $26,862 $25,741 $27,187 10/31/23 $25,385 $25,200 $25,693 11/30/23 $28,165 $27,501 $28,511 12/31/23 $29,895 $28,750 $30,268 01/31/24 $28,580 $29,233 $28,937 02/29/24 $30,851 $30,794 $31,241 03/31/24 $30,825 $31,785 $31,218 04/30/24 $29,394 $30,487 $29,768 05/31/24 $29,471 $31,999 $29,848 06/30/24 $30,610 $33,147 $31,008 07/31/24 $31,480 $33,550 $31,891 08/31/24 $31,422 $34,364 $31,835 09/30/24 $33,722 $35,098 $34,175 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLY 25.54% 11.64% 12.93% S&P 500 Index 36.35% 15.98% 13.38% Consumer Discretionary Select Sector Index 25.71% 11.77% 13.08% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 19,443,914,073 |
| Holdings Count | Holding | 52 |
| Advisory Fees Paid, Amount | $ 5,741,665 |
| InvestmentCompanyPortfolioTurnover | 26% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $19,443,914,073 Number of Portfolio Holdings 52 Portfolio Turnover Rate 26% Total Advisory Fees Paid $5,741,665 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Hotels, Restaurants & Leisure 24.0% Specialty Retail 23.1% Broadline Retail 22.9% Automobiles 17.2% Household Durables 5.4% Textiles, Apparel & Luxury Goods 5.0% Distributors 1.2% Auto Components 0.8% Leisure Equipment & Products 0.3% Top Ten Holdings Holdings % Value of Total Net Assets Amazon.com, Inc. 22.1% Tesla, Inc. 14.7% Home Depot, Inc. 8.1% McDonald's Corp. 4.4% Lowe's Cos., Inc. 4.3% Booking Holdings, Inc. 3.9% TJX Cos., Inc. 3.7% Starbucks Corp. 3.1% NIKE, Inc., Class B 2.9% Chipotle Mexican Grill, Inc. 2.2% |
| Material Fund Change [Text Block] | |
| C000017595 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Consumer Staples Select Sector SPDR Fund |
| Trading Symbol | XLP |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Consumer Staples Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLP. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLP |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Consumer Staples Select Sector SPDR Fund $9 0.08% |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Though producing positive returns for the reporting period, the Consumer Staples sector was hurt by the bull market that occurred around it. The defensive sector has persistent demand for its products and offers investors a strong dividend yield alternative when rates are low. When the overall market is striving, however, consumers focus more on discretionary sectors and that aforementioned demand tends to be surpassed by more luxurious and spontaneous purchases. The sector returned over 24%, but still lagged the broader S&P 500 by more than 12% for the reporting period. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLP S&P 500 Index Consumer Staples Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,359 $10,244 $10,362 11/30/14 $10,925 $10,520 $10,931 12/31/14 $10,832 $10,493 $10,840 01/31/15 $10,717 $10,178 $10,726 02/28/15 $11,172 $10,763 $11,183 03/31/15 $10,958 $10,593 $10,971 04/30/15 $10,864 $10,695 $10,878 05/31/15 $10,958 $10,832 $10,974 06/30/15 $10,768 $10,622 $10,782 07/31/15 $11,365 $10,845 $11,383 08/31/15 $10,697 $10,191 $10,713 09/30/15 $10,745 $9,939 $10,762 10/31/15 $11,350 $10,777 $11,371 11/30/15 $11,247 $10,809 $11,269 12/31/15 $11,572 $10,638 $11,599 01/31/16 $11,643 $10,111 $11,673 02/29/16 $11,671 $10,097 $11,703 03/31/16 $12,220 $10,782 $12,256 04/30/16 $12,054 $10,824 $12,090 05/31/16 $12,147 $11,018 $12,186 06/30/16 $12,780 $11,047 $12,823 07/31/16 $12,676 $11,454 $12,720 08/31/16 $12,613 $11,470 $12,658 09/30/16 $12,410 $11,472 $12,455 10/31/16 $12,312 $11,263 $12,358 11/30/16 $11,791 $11,680 $11,833 12/31/16 $12,151 $11,911 $12,197 01/31/17 $12,352 $12,137 $12,400 02/28/17 $12,947 $12,619 $13,001 03/31/17 $12,896 $12,633 $12,951 04/30/17 $13,031 $12,763 $13,088 05/31/17 $13,384 $12,943 $13,445 06/30/17 $13,080 $13,023 $13,139 07/31/17 $13,166 $13,291 $13,227 08/31/17 $13,027 $13,332 $13,088 09/30/17 $12,933 $13,607 $12,993 10/31/17 $12,720 $13,925 $12,781 11/30/17 $13,427 $14,352 $13,494 12/31/17 $13,721 $14,511 $13,794 01/31/18 $13,951 $15,342 $14,026 02/28/18 $12,890 $14,777 $12,958 03/31/18 $12,772 $14,401 $12,839 04/30/18 $12,247 $14,456 $12,310 05/31/18 $12,055 $14,804 $12,117 06/30/18 $12,595 $14,896 $12,662 07/31/18 $13,099 $15,450 $13,171 08/31/18 $13,163 $15,953 $13,238 09/30/18 $13,282 $16,044 $13,357 10/31/18 $13,559 $14,947 $13,637 11/30/18 $13,889 $15,252 $13,970 12/31/18 $12,623 $13,875 $12,695 01/31/19 $13,261 $14,987 $13,339 02/28/19 $13,506 $15,468 $13,587 03/31/19 $14,023 $15,769 $14,111 04/30/19 $14,425 $16,407 $14,518 05/31/19 $13,902 $15,364 $13,992 06/30/19 $14,635 $16,447 $14,732 07/31/19 $14,976 $16,684 $15,077 08/31/19 $15,295 $16,419 $15,401 09/30/19 $15,559 $16,727 $15,669 10/31/19 $15,491 $17,089 $15,602 11/30/19 $15,700 $17,709 $15,815 12/31/19 $16,088 $18,244 $16,209 01/31/20 $16,139 $18,237 $16,262 02/29/20 $14,802 $16,735 $14,914 03/31/20 $13,998 $14,668 $14,105 04/30/20 $14,972 $16,549 $15,091 05/31/20 $15,221 $17,337 $15,344 06/30/20 $15,188 $17,682 $15,310 07/31/20 $16,224 $18,679 $16,359 08/31/20 $16,977 $20,021 $17,122 09/30/20 $16,698 $19,260 $16,840 10/31/20 $16,202 $18,748 $16,339 11/30/20 $17,420 $20,801 $17,572 12/31/20 $17,719 $21,600 $17,876 01/31/21 $16,836 $21,382 $16,985 02/28/21 $16,624 $21,972 $16,772 03/31/21 $17,996 $22,934 $18,165 04/30/21 $18,359 $24,158 $18,534 05/31/21 $18,681 $24,327 $18,862 06/30/21 $18,584 $24,895 $18,766 07/31/21 $18,980 $25,486 $19,168 08/31/21 $19,199 $26,261 $19,392 09/30/21 $18,399 $25,040 $18,582 10/31/21 $19,045 $26,794 $19,237 11/30/21 $18,772 $26,608 $18,964 12/31/21 $20,750 $27,801 $20,972 01/31/22 $20,449 $26,362 $20,669 02/28/22 $20,179 $25,573 $20,396 03/31/22 $20,482 $26,522 $20,707 04/30/22 $20,993 $24,209 $21,226 05/31/22 $20,130 $24,254 $20,350 06/30/22 $19,646 $22,252 $19,871 07/31/22 $20,278 $24,304 $20,514 08/31/22 $19,906 $23,312 $20,137 09/30/22 $18,283 $21,165 $18,491 10/31/22 $19,925 $22,879 $20,160 11/30/22 $21,159 $24,158 $21,413 12/31/22 $20,579 $22,766 $20,826 01/31/23 $20,351 $24,196 $20,597 02/28/23 $19,882 $23,606 $20,123 03/31/23 $20,721 $24,473 $20,976 04/30/23 $21,473 $24,855 $21,742 05/31/23 $20,146 $24,963 $20,394 06/30/23 $20,715 $26,612 $20,973 07/31/23 $21,151 $27,467 $21,417 08/31/23 $20,318 $27,030 $20,572 09/30/23 $19,350 $25,741 $19,588 10/31/23 $19,082 $25,200 $19,317 11/30/23 $19,872 $27,501 $20,120 12/31/23 $20,401 $28,750 $20,661 01/31/24 $20,662 $29,233 $20,928 02/29/24 $21,104 $30,794 $21,379 03/31/24 $21,794 $31,785 $22,083 04/30/24 $21,553 $30,487 $21,839 05/31/24 $22,062 $31,999 $22,358 06/30/24 $22,018 $33,147 $22,315 07/31/24 $22,382 $33,550 $22,687 08/31/24 $23,721 $34,364 $24,049 09/30/24 $24,001 $35,098 $24,336 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLP 24.04% 9.06% 9.15% S&P 500 Index 36.35% 15.98% 13.38% Consumer Staples Select Sector Index 24.23% 9.20% 9.30% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 17,898,707,828 |
| Holdings Count | Holding | 40 |
| Advisory Fees Paid, Amount | $ 4,808,943 |
| InvestmentCompanyPortfolioTurnover | 28% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $17,898,707,828 Number of Portfolio Holdings 40 Portfolio Turnover Rate 28% Total Advisory Fees Paid $4,808,943 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Consumer Staples Distribution & Retail 28.4% Beverages 20.0% Household Products 19.5% Food Products 19.0% Tobacco 8.9% Personal Care Products 3.8% Top Ten Holdings Holdings % Value of Total Net Assets Procter & Gamble Co. 9.8% Costco Wholesale Corp. 9.4% Walmart, Inc. 8.4% Coca-Cola Co. 6.7% PepsiCo, Inc. 5.6% Philip Morris International, Inc. 4.5% Colgate-Palmolive Co. 4.4% Mondelez International, Inc., Class A 4.4% Altria Group, Inc. 4.4% Target Corp. 4.1% |
| Material Fund Change [Text Block] | |
| C000017596 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Energy Select Sector SPDR Fund |
| Trading Symbol | XLE |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Energy Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLE. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLE |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Energy Select Sector SPDR Fund $8 0.08% |
| Expenses Paid, Amount | $ 8 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund for the reporting period was driven by a cut in interest rates, easing inflation, and high demand for oil, gas, energy equipment and services. During the reporting period, the Fund's use of their current investment strategies did not cause the Fund's performance to materially deviate from the manager's expectations considering the uncertainty of the markets. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLE S&P 500 Index Energy Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $9,656 $10,244 $9,656 11/30/14 $8,804 $10,520 $8,804 12/31/14 $8,793 $10,493 $8,793 01/31/15 $8,392 $10,178 $8,392 02/28/15 $8,776 $10,763 $8,777 03/31/15 $8,648 $10,593 $8,651 04/30/15 $9,244 $10,695 $9,248 05/31/15 $8,764 $10,832 $8,767 06/30/15 $8,459 $10,622 $8,460 07/31/15 $7,809 $10,845 $7,809 08/31/15 $7,485 $10,191 $7,484 09/30/15 $6,948 $9,939 $6,943 10/31/15 $7,719 $10,777 $7,715 11/30/15 $7,714 $10,809 $7,710 12/31/15 $6,906 $10,638 $6,898 01/31/16 $6,671 $10,111 $6,664 02/29/16 $6,489 $10,097 $6,481 03/31/16 $7,139 $10,782 $7,133 04/30/16 $7,778 $10,824 $7,773 05/31/16 $7,712 $11,018 $7,709 06/30/16 $7,924 $11,047 $7,920 07/31/16 $7,825 $11,454 $7,822 08/31/16 $7,957 $11,470 $7,956 09/30/16 $8,249 $11,472 $8,248 10/31/16 $8,014 $11,263 $8,013 11/30/16 $8,698 $11,680 $8,701 12/31/16 $8,840 $11,911 $8,846 01/31/17 $8,555 $12,137 $8,561 02/28/17 $8,382 $12,619 $8,388 03/31/17 $8,263 $12,633 $8,267 04/30/17 $8,014 $12,763 $8,019 05/31/17 $7,732 $12,943 $7,736 06/30/17 $7,717 $13,023 $7,722 07/31/17 $7,923 $13,291 $7,929 08/31/17 $7,497 $13,332 $7,502 09/30/17 $8,248 $13,607 $8,263 10/31/17 $8,184 $13,925 $8,200 11/30/17 $8,329 $14,352 $8,347 12/31/17 $8,746 $14,511 $8,769 01/31/18 $9,073 $15,342 $9,098 02/28/18 $8,093 $14,777 $8,115 03/31/18 $8,231 $14,401 $8,256 04/30/18 $9,007 $14,456 $9,036 05/31/18 $9,277 $14,804 $9,308 06/30/18 $9,335 $14,896 $9,367 07/31/18 $9,470 $15,450 $9,503 08/31/18 $9,149 $15,953 $9,182 09/30/18 $9,373 $16,044 $9,410 10/31/18 $8,309 $14,947 $8,344 11/30/18 $8,176 $15,252 $8,210 12/31/18 $7,159 $13,875 $7,183 01/31/19 $7,964 $14,987 $7,993 02/28/19 $8,148 $15,468 $8,180 03/31/19 $8,320 $15,769 $8,355 04/30/19 $8,330 $16,407 $8,366 05/31/19 $7,406 $15,364 $7,434 06/30/19 $8,090 $16,447 $8,126 07/31/19 $7,950 $16,684 $7,986 08/31/19 $7,305 $16,419 $7,336 09/30/19 $7,584 $16,727 $7,621 10/31/19 $7,421 $17,089 $7,457 11/30/19 $7,544 $17,709 $7,581 12/31/19 $8,005 $18,244 $8,051 01/31/20 $7,121 $18,237 $7,161 02/29/20 $6,105 $16,735 $6,130 03/31/20 $3,945 $14,668 $3,965 04/30/20 $5,158 $16,549 $5,189 05/31/20 $5,264 $17,337 $5,298 06/30/20 $5,204 $17,682 $5,240 07/31/20 $4,953 $18,679 $4,982 08/31/20 $4,905 $20,021 $4,933 09/30/20 $4,195 $19,260 $4,214 10/31/20 $4,016 $18,748 $4,034 11/30/20 $5,148 $20,801 $5,175 12/31/20 $5,378 $21,600 $5,407 01/31/21 $5,581 $21,382 $5,611 02/28/21 $6,834 $21,972 $6,874 03/31/21 $7,025 $22,934 $7,067 04/30/21 $7,073 $24,158 $7,115 05/31/21 $7,482 $24,327 $7,528 06/30/21 $7,798 $24,895 $7,852 07/31/21 $7,146 $25,486 $7,195 08/31/21 $7,008 $26,261 $7,057 09/30/21 $7,633 $25,040 $7,690 10/31/21 $8,417 $26,794 $8,481 11/30/21 $7,987 $26,608 $8,048 12/31/21 $8,230 $27,801 $8,295 01/31/22 $9,777 $26,362 $9,856 02/28/22 $10,476 $25,573 $10,563 03/31/22 $11,437 $26,522 $11,537 04/30/22 $11,261 $24,209 $11,361 05/31/22 $13,038 $24,254 $13,156 06/30/22 $10,838 $22,252 $10,930 07/31/22 $11,869 $24,304 $11,972 08/31/22 $12,182 $23,312 $12,288 09/30/22 $11,018 $21,165 $11,111 10/31/22 $13,768 $22,879 $13,885 11/30/22 $13,957 $24,158 $14,077 12/31/22 $13,531 $22,766 $13,651 01/31/23 $13,895 $24,196 $14,018 02/28/23 $12,942 $23,606 $13,058 03/31/23 $12,935 $24,473 $13,055 04/30/23 $13,295 $24,855 $13,419 05/31/23 $11,961 $24,963 $12,073 06/30/23 $12,789 $26,612 $12,907 07/31/23 $13,790 $27,467 $13,918 08/31/23 $14,015 $27,030 $14,147 09/30/23 $14,357 $25,741 $14,490 10/31/23 $13,532 $25,200 $13,659 11/30/23 $13,428 $27,501 $13,556 12/31/23 $13,439 $28,750 $13,570 01/31/24 $13,371 $29,233 $13,502 02/29/24 $13,800 $30,794 $13,936 03/31/24 $15,255 $31,785 $15,409 04/30/24 $15,119 $30,487 $15,272 05/31/24 $15,054 $31,999 $15,208 06/30/24 $14,851 $33,147 $15,006 07/31/24 $15,181 $33,550 $15,341 08/31/24 $14,856 $34,364 $15,014 09/30/24 $14,421 $35,098 $14,574 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLE 0.45% 13.71% 3.73% S&P 500 Index 36.35% 15.98% 13.38% Energy Select Sector Index 0.58% 13.85% 3.84% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 35,460,368,140 |
| Holdings Count | Holding | 25 |
| Advisory Fees Paid, Amount | $ 11,472,179 |
| InvestmentCompanyPortfolioTurnover | 19% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $35,460,368,140 Number of Portfolio Holdings 25 Portfolio Turnover Rate 19% Total Advisory Fees Paid $11,472,179 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Oil, Gas & Consumable Fuels 90.7% Energy Equipment & Services 9.1% Top Ten Holdings Holdings % Value of Total Net Assets Exxon Mobil Corp. 23.3% Chevron Corp. 15.5% ConocoPhillips 7.6% Schlumberger NV 4.5% EOG Resources, Inc. 4.5% Williams Cos., Inc. 4.2% Phillips 66 4.1% Marathon Petroleum Corp. 4.1% ONEOK, Inc. 4.0% Valero Energy Corp. 3.3% |
| Material Fund Change [Text Block] | |
| C000017597 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Financial Select Sector SPDR Fund |
| Trading Symbol | XLF |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Financial Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLF. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLF |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Financial Select Sector SPDR Fund $10 0.08% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by speculation about inflation and when and by how much the U.S. Federal Reserve (“the Fed”) and other central banks would begin cutting rates. Alongside this interest rate story was the continuing prospect of an artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. And even though markets moved sideways in 3Q24 as investors rotated out of growth and tech stocks and back into value and small cap securities, they could not undo the reporting period’s significant influence driven by those mega-cap high-flyers. With the Fed finally cutting rates in September and by 50 bps, the year-long speculation about the timing of the Fed’s directional shift was finally put to rest, and markets ended the year-long period with significant gains and at the highest levels. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLF S&P 500 Index Financial Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,294 $10,244 $10,297 11/30/14 $10,530 $10,520 $10,534 12/31/14 $10,719 $10,493 $10,725 01/31/15 $9,980 $10,178 $9,984 02/28/15 $10,562 $10,763 $10,569 03/31/15 $10,496 $10,593 $10,505 04/30/15 $10,514 $10,695 $10,524 05/31/15 $10,705 $10,832 $10,717 06/30/15 $10,674 $10,622 $10,685 07/31/15 $11,009 $10,845 $11,018 08/31/15 $10,266 $10,191 $10,274 09/30/15 $9,961 $9,939 $9,967 10/31/15 $10,580 $10,777 $10,590 11/30/15 $10,779 $10,809 $10,790 12/31/15 $10,547 $10,638 $10,561 01/31/16 $9,614 $10,111 $9,626 02/29/16 $9,331 $10,097 $9,343 03/31/16 $10,012 $10,782 $10,027 04/30/16 $10,350 $10,824 $10,368 05/31/16 $10,558 $11,018 $10,579 06/30/16 $10,222 $11,047 $10,239 07/31/16 $10,582 $11,454 $10,602 08/31/16 $10,985 $11,470 $11,009 09/30/16 $10,694 $11,472 $10,709 10/31/16 $10,938 $11,263 $10,955 11/30/16 $12,457 $11,680 $12,482 12/31/16 $12,940 $11,911 $12,969 01/31/17 $12,971 $12,137 $12,999 02/28/17 $13,642 $12,619 $13,675 03/31/17 $13,266 $12,633 $13,296 04/30/17 $13,153 $12,763 $13,184 05/31/17 $12,996 $12,943 $13,024 06/30/17 $13,828 $13,023 $13,861 07/31/17 $14,065 $13,291 $14,100 08/31/17 $13,838 $13,332 $13,873 09/30/17 $14,545 $13,607 $14,587 10/31/17 $14,970 $13,925 $15,015 11/30/17 $15,491 $14,352 $15,541 12/31/17 $15,792 $14,511 $15,846 01/31/18 $16,810 $15,342 $16,872 02/28/18 $16,342 $14,777 $16,402 03/31/18 $15,637 $14,401 $15,694 04/30/18 $15,578 $14,456 $15,636 05/31/18 $15,437 $14,804 $15,495 06/30/18 $15,140 $14,896 $15,198 07/31/18 $15,935 $15,450 $15,999 08/31/18 $16,153 $15,953 $16,221 09/30/18 $15,794 $16,044 $15,860 10/31/18 $15,047 $14,947 $15,109 11/30/18 $15,466 $15,252 $15,532 12/31/18 $13,724 $13,875 $13,781 01/31/19 $14,933 $14,987 $14,999 02/28/19 $15,292 $15,468 $15,362 03/31/19 $14,893 $15,769 $14,961 04/30/19 $16,231 $16,407 $16,308 05/31/19 $15,067 $15,364 $15,138 06/30/19 $16,078 $16,447 $16,157 07/31/19 $16,470 $16,684 $16,553 08/31/19 $15,672 $16,419 $15,751 09/30/19 $16,395 $16,727 $16,482 10/31/19 $16,788 $17,089 $16,880 11/30/19 $17,631 $17,709 $17,731 12/31/19 $18,102 $18,244 $18,208 01/31/20 $17,634 $18,237 $17,738 02/29/20 $15,664 $16,735 $15,753 03/31/20 $12,321 $14,668 $12,396 04/30/20 $13,496 $16,549 $13,583 05/31/20 $13,861 $17,337 $13,952 06/30/20 $13,817 $17,682 $13,908 07/31/20 $14,335 $18,679 $14,432 08/31/20 $14,947 $20,021 $15,051 09/30/20 $14,430 $19,260 $14,526 10/31/20 $14,312 $18,748 $14,408 11/30/20 $16,727 $20,801 $16,843 12/31/20 $17,771 $21,600 $17,900 01/31/21 $17,471 $21,382 $17,601 02/28/21 $19,473 $21,972 $19,623 03/31/21 $20,600 $22,934 $20,762 04/30/21 $21,949 $24,158 $22,126 05/31/21 $22,996 $24,327 $23,185 06/30/21 $22,310 $24,895 $22,498 07/31/21 $22,211 $25,486 $22,400 08/31/21 $23,347 $26,261 $23,551 09/30/21 $22,913 $25,040 $23,115 10/31/21 $24,580 $26,794 $24,802 11/30/21 $23,183 $26,608 $23,393 12/31/21 $23,950 $27,801 $24,171 01/31/22 $23,962 $26,362 $24,184 02/28/22 $23,637 $25,573 $23,857 03/31/22 $23,591 $26,522 $23,813 04/30/22 $21,266 $24,209 $21,462 05/31/22 $21,846 $24,254 $22,048 06/30/22 $19,465 $22,252 $19,645 07/31/22 $20,864 $24,304 $21,062 08/31/22 $20,444 $23,312 $20,638 09/30/22 $18,864 $21,165 $19,036 10/31/22 $21,120 $22,879 $21,318 11/30/22 $22,603 $24,158 $22,819 12/31/22 $21,422 $22,766 $21,625 01/31/23 $22,888 $24,196 $23,110 02/28/23 $22,362 $23,606 $22,580 03/31/23 $20,234 $24,473 $20,422 04/30/23 $20,874 $24,855 $21,072 05/31/23 $19,973 $24,963 $20,162 06/30/23 $21,307 $26,612 $21,512 07/31/23 $22,336 $27,467 $22,555 08/31/23 $21,745 $27,030 $21,958 09/30/23 $21,064 $25,741 $21,269 10/31/23 $20,545 $25,200 $20,745 11/30/23 $22,780 $27,501 $23,010 12/31/23 $24,004 $28,750 $24,252 01/31/24 $24,732 $29,233 $24,991 02/29/24 $25,756 $30,794 $26,031 03/31/24 $26,979 $31,785 $27,274 04/30/24 $25,852 $30,487 $26,133 05/31/24 $26,665 $31,999 $26,958 06/30/24 $26,428 $33,147 $26,719 07/31/24 $28,137 $33,550 $28,445 08/31/24 $29,401 $34,364 $29,729 09/30/24 $29,241 $35,098 $29,567 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLF 38.82% 12.27% 11.33% S&P 500 Index 36.35% 15.98% 13.38% Financial Select Sector Index 39.01% 12.40% 11.45% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 42,293,858,417 |
| Holdings Count | Holding | 74 |
| Advisory Fees Paid, Amount | $ 11,312,299 |
| InvestmentCompanyPortfolioTurnover | 3% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $42,293,858,417 Number of Portfolio Holdings 74 Portfolio Turnover Rate 3% Total Advisory Fees Paid $11,312,299 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Financial Services 31.8% Banks 30.2% Capital Markets 17.0% Insurance 16.7% Consumer Finance 4.2% Top Ten Holdings Holdings % Value of Total Net Assets Berkshire Hathaway, Inc., Class B 13.4% JPMorgan Chase & Co. 9.5% Visa, Inc., Class A 7.3% Mastercard, Inc., Class A 6.5% Bank of America Corp. 4.3% Wells Fargo & Co. 3.1% S&P Global, Inc. 2.6% Goldman Sachs Group, Inc. 2.5% American Express Co. 2.4% Progressive Corp. 2.4% |
| Material Fund Change [Text Block] | |
| C000017598 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Health Care Select Sector SPDR Fund |
| Trading Symbol | XLV |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Health Care Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLV. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLV |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Health Care Select Sector SPDR Fund $9 0.08% |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? All 11 sectors in the S&P 500 Index posted positive returns year-to-date as of September 2024, with Health Care sector underperforming the overall market. The Health Care sector experienced positive returns in three out of four quarters, and it recorded its best return in Q1 2024. The reporting period’s market environment was largely driven by speculation about inflation and when and by how much the U.S. Federal Reserve (“the Fed”) and other central banks would begin cutting rates. Alongside this interest rate story was the continuing prospect of an artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. And even though markets moved sideways in 3Q24 as investors rotated out of growth and tech stocks and back into value and small cap securities, they could not undo the reporting period’s significant influence driven by those mega-cap high-flyers. With the Fed finally cutting rates in September and by 50 bps, the year-long speculation about the timing of the Fed’s directional shift was finally put to rest, and markets ended the year-long period with significant gains and at the highest levels. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLV S&P 500 Index Health Care Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,533 $10,244 $10,535 11/30/14 $10,889 $10,520 $10,893 12/31/14 $10,745 $10,493 $10,751 01/31/15 $10,879 $10,178 $10,884 02/28/15 $11,351 $10,763 $11,357 03/31/15 $11,453 $10,593 $11,460 04/30/15 $11,295 $10,695 $11,303 05/31/15 $11,807 $10,832 $11,818 06/30/15 $11,773 $10,622 $11,784 07/31/15 $12,097 $10,845 $12,111 08/31/15 $11,148 $10,191 $11,160 09/30/15 $10,522 $9,939 $10,530 10/31/15 $11,331 $10,777 $11,342 11/30/15 $11,283 $10,809 $11,295 12/31/15 $11,482 $10,638 $11,498 01/31/16 $10,611 $10,111 $10,626 02/29/16 $10,559 $10,097 $10,574 03/31/16 $10,844 $10,782 $10,863 04/30/16 $11,160 $10,824 $11,180 05/31/16 $11,403 $11,018 $11,426 06/30/16 $11,521 $11,047 $11,543 07/31/16 $12,083 $11,454 $12,109 08/31/16 $11,683 $11,470 $11,708 09/30/16 $11,621 $11,472 $11,648 10/31/16 $10,862 $11,263 $10,887 11/30/16 $11,078 $11,680 $11,105 12/31/16 $11,157 $11,911 $11,185 01/31/17 $11,404 $12,137 $11,434 02/28/17 $12,134 $12,619 $12,170 03/31/17 $12,082 $12,633 $12,118 04/30/17 $12,270 $12,763 $12,308 05/31/17 $12,366 $12,943 $12,406 06/30/17 $12,932 $13,023 $12,979 07/31/17 $13,030 $13,291 $13,079 08/31/17 $13,265 $13,332 $13,317 09/30/17 $13,389 $13,607 $13,443 10/31/17 $13,285 $13,925 $13,340 11/30/17 $13,670 $14,352 $13,729 12/31/17 $13,579 $14,511 $13,638 01/31/18 $14,479 $15,342 $14,545 02/28/18 $13,832 $14,777 $13,895 03/31/18 $13,404 $14,401 $13,466 04/30/18 $13,566 $14,456 $13,630 05/31/18 $13,595 $14,804 $13,660 06/30/18 $13,814 $14,896 $13,882 07/31/18 $14,724 $15,450 $14,801 08/31/18 $15,364 $15,953 $15,448 09/30/18 $15,812 $16,044 $15,900 10/31/18 $14,754 $14,947 $14,836 11/30/18 $15,791 $15,252 $15,883 12/31/18 $14,433 $13,875 $14,514 01/31/19 $15,128 $14,987 $15,217 02/28/19 $15,304 $15,468 $15,396 03/31/19 $15,378 $15,769 $15,471 04/30/19 $14,975 $16,407 $15,064 05/31/19 $14,622 $15,364 $14,709 06/30/19 $15,589 $16,447 $15,686 07/31/19 $15,340 $16,684 $15,436 08/31/19 $15,262 $16,419 $15,359 09/30/19 $15,235 $16,727 $15,333 10/31/19 $16,010 $17,089 $16,117 11/30/19 $16,814 $17,709 $16,929 12/31/19 $17,414 $18,244 $17,537 01/31/20 $16,941 $18,237 $17,060 02/29/20 $15,815 $16,735 $15,923 03/31/20 $15,204 $14,668 $15,315 04/30/20 $17,120 $16,549 $17,252 05/31/20 $17,681 $17,337 $17,819 06/30/20 $17,260 $17,682 $17,395 07/31/20 $18,185 $18,679 $18,332 08/31/20 $18,667 $20,021 $18,821 09/30/20 $18,267 $19,260 $18,416 10/31/20 $17,594 $18,748 $17,738 11/30/20 $18,985 $20,801 $19,146 12/31/20 $19,724 $21,600 $19,895 01/31/21 $20,002 $21,382 $20,177 02/28/21 $19,580 $21,972 $19,752 03/31/21 $20,345 $22,934 $20,527 04/30/21 $21,147 $24,158 $21,340 05/31/21 $21,544 $24,327 $21,744 06/30/21 $22,045 $24,895 $22,252 07/31/21 $23,120 $25,486 $23,342 08/31/21 $23,666 $26,261 $23,897 09/30/21 $22,354 $25,040 $22,571 10/31/21 $23,503 $26,794 $23,737 11/30/21 $22,798 $26,608 $23,025 12/31/21 $24,837 $27,801 $25,093 01/31/22 $23,159 $26,362 $23,398 02/28/22 $22,922 $25,573 $23,159 03/31/22 $24,191 $26,522 $24,447 04/30/22 $23,054 $24,209 $23,296 05/31/22 $23,383 $24,254 $23,631 06/30/22 $22,755 $22,252 $23,002 07/31/22 $23,508 $24,304 $23,766 08/31/22 $22,151 $23,312 $22,392 09/30/22 $21,577 $21,165 $21,811 10/31/22 $23,666 $22,879 $23,929 11/30/22 $24,801 $24,158 $25,082 12/31/22 $24,327 $22,766 $24,603 01/31/23 $23,871 $24,196 $24,143 02/28/23 $22,773 $23,606 $23,031 03/31/23 $23,277 $24,473 $23,543 04/30/23 $23,991 $24,855 $24,267 05/31/23 $22,963 $24,963 $23,226 06/30/23 $23,959 $26,612 $24,238 07/31/23 $24,201 $27,467 $24,485 08/31/23 $24,036 $27,030 $24,316 09/30/23 $23,326 $25,741 $23,596 10/31/23 $22,576 $25,200 $22,838 11/30/23 $23,793 $27,501 $24,073 12/31/23 $24,811 $28,750 $25,109 01/31/24 $25,556 $29,233 $25,865 02/29/24 $26,373 $30,794 $26,697 03/31/24 $26,998 $31,785 $27,331 04/30/24 $25,626 $30,487 $25,943 05/31/24 $26,234 $31,999 $26,561 06/30/24 $26,732 $33,147 $27,069 07/31/24 $27,438 $33,550 $27,787 08/31/24 $28,833 $34,364 $29,205 09/30/24 $28,349 $35,098 $28,713 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLV 21.53% 13.22% 10.98% S&P 500 Index 36.35% 15.98% 13.38% Health Care Select Sector Index 21.69% 13.37% 11.12% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 41,830,222,633 |
| Holdings Count | Holding | 64 |
| Advisory Fees Paid, Amount | $ 12,039,266 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $41,830,222,633 Number of Portfolio Holdings 64 Portfolio Turnover Rate 2% Total Advisory Fees Paid $12,039,266 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Pharmaceuticals 31.1% Health Care Providers & Services 21.3% Health Care Equipment & Supplies 20.4% Biotechnology 16.3% Life Sciences Tools & Services 10.8% Top Ten Holdings Holdings % Value of Total Net Assets Eli Lilly & Co. 12.4% UnitedHealth Group, Inc. 9.5% Johnson & Johnson 6.9% AbbVie, Inc. 6.2% Merck & Co., Inc. 5.1% Thermo Fisher Scientific, Inc. 4.2% Abbott Laboratories 3.5% Danaher Corp. 3.2% Intuitive Surgical, Inc. 3.1% Amgen, Inc. 3.1% |
| Material Fund Change [Text Block] | |
| C000017599 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Industrial Select Sector SPDR Fund |
| Trading Symbol | XLI |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Industrial Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLI. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLI |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Industrial Select Sector SPDR Fund $9 0.08% |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The market environment over the reporting period was largely driven by speculation about inflation and when and by how much the U.S. Federal Reserve (“the Fed”) and other central banks would begin cutting rates. With the Fed finally cutting rates in September by 0.50%, the year-long speculation about the timing of the Fed’s directional shift was finally put to rest, and markets ended the year-long period with significant gains and at the highest levels. The Industrial sector advanced over 35% over the reporting period and slightly underperformed the S&P 500 Index. The Aerospace and Defense sub-industry was the largest contributor to performance, with GE Aerospace (GE) leading the way. GE soared over 100% over the reporting period amid its conversion to a pure-play aerospace company. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLI S&P 500 Index Industrial Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,394 $10,244 $10,396 11/30/14 $10,709 $10,520 $10,713 12/31/14 $10,707 $10,493 $10,713 01/31/15 $10,323 $10,178 $10,330 02/28/15 $10,884 $10,763 $10,894 03/31/15 $10,612 $10,593 $10,622 04/30/15 $10,577 $10,695 $10,588 05/31/15 $10,612 $10,832 $10,624 06/30/15 $10,339 $10,622 $10,349 07/31/15 $10,360 $10,845 $10,372 08/31/15 $9,802 $10,191 $9,812 09/30/15 $9,591 $9,939 $9,599 10/31/15 $10,427 $10,777 $10,439 11/30/15 $10,514 $10,809 $10,526 12/31/15 $10,251 $10,638 $10,264 01/31/16 $9,671 $10,111 $9,682 02/29/16 $10,073 $10,097 $10,088 03/31/16 $10,784 $10,782 $10,804 04/30/16 $10,916 $10,824 $10,937 05/31/16 $10,866 $11,018 $10,890 06/30/16 $10,947 $11,047 $10,970 07/31/16 $11,347 $11,454 $11,373 08/31/16 $11,456 $11,470 $11,478 09/30/16 $11,472 $11,472 $11,496 10/31/16 $11,240 $11,263 $11,264 11/30/16 $12,253 $11,680 $12,284 12/31/16 $12,296 $11,911 $12,330 01/31/17 $12,531 $12,137 $12,567 02/28/17 $13,016 $12,619 $13,056 03/31/17 $12,928 $12,633 $12,968 04/30/17 $13,171 $12,763 $13,214 05/31/17 $13,405 $12,943 $13,451 06/30/17 $13,595 $13,023 $13,643 07/31/17 $13,627 $13,291 $13,678 08/31/17 $13,662 $13,332 $13,715 09/30/17 $14,229 $13,607 $14,288 10/31/17 $14,336 $13,925 $14,398 11/30/17 $14,920 $14,352 $14,989 12/31/17 $15,228 $14,511 $15,302 01/31/18 $16,069 $15,342 $16,150 02/28/18 $15,448 $14,777 $15,526 03/31/18 $15,032 $14,401 $15,109 04/30/18 $14,612 $14,456 $14,687 05/31/18 $15,048 $14,804 $15,129 06/30/18 $14,551 $14,896 $14,628 07/31/18 $15,614 $15,450 $15,700 08/31/18 $15,658 $15,953 $15,747 09/30/18 $15,998 $16,044 $16,091 10/31/18 $14,270 $14,947 $14,351 11/30/18 $14,815 $15,252 $14,903 12/31/18 $13,234 $13,875 $13,309 01/31/19 $14,739 $14,987 $14,828 02/28/19 $15,678 $15,468 $15,777 03/31/19 $15,500 $15,769 $15,598 04/30/19 $16,134 $16,407 $16,239 05/31/19 $14,884 $15,364 $14,978 06/30/19 $16,047 $16,447 $16,154 07/31/19 $16,152 $16,684 $16,262 08/31/19 $15,726 $16,419 $15,835 09/30/19 $16,198 $16,727 $16,314 10/31/19 $16,372 $17,089 $16,491 11/30/19 $17,099 $17,709 $17,227 12/31/19 $17,087 $18,244 $17,217 01/31/20 $17,009 $18,237 $17,140 02/29/20 $15,426 $16,735 $15,541 03/31/20 $12,458 $14,668 $12,560 04/30/20 $13,543 $16,549 $13,657 05/31/20 $14,283 $17,337 $14,408 06/30/20 $14,568 $17,682 $14,697 07/31/20 $15,198 $18,679 $15,335 08/31/20 $16,504 $20,021 $16,657 09/30/20 $16,379 $19,260 $16,530 10/31/20 $16,143 $18,748 $16,293 11/30/20 $18,715 $20,801 $18,896 12/31/20 $18,937 $21,600 $19,122 01/31/21 $18,122 $21,382 $18,299 02/28/21 $19,367 $21,972 $19,560 03/31/21 $21,085 $22,934 $21,304 04/30/21 $21,840 $24,158 $22,069 05/31/21 $22,522 $24,327 $22,761 06/30/21 $22,023 $24,895 $22,258 07/31/21 $22,217 $25,486 $22,456 08/31/21 $22,469 $26,261 $22,713 09/30/21 $21,087 $25,040 $21,317 10/31/21 $22,535 $26,794 $22,784 11/30/21 $21,744 $26,608 $21,987 12/31/21 $22,901 $27,801 $23,160 01/31/22 $21,817 $26,362 $22,065 02/28/22 $21,624 $25,573 $21,872 03/31/22 $22,352 $26,522 $22,612 04/30/22 $20,669 $24,209 $20,910 05/31/22 $20,569 $24,254 $20,810 06/30/22 $19,044 $22,252 $19,271 07/31/22 $20,851 $24,304 $21,102 08/31/22 $20,266 $23,312 $20,509 09/30/22 $18,146 $21,165 $18,361 10/31/22 $20,672 $22,879 $20,917 11/30/22 $22,292 $24,158 $22,560 12/31/22 $21,631 $22,766 $21,891 01/31/23 $22,433 $24,196 $22,704 02/28/23 $22,231 $23,606 $22,502 03/31/23 $22,375 $24,473 $22,650 04/30/23 $22,109 $24,855 $22,382 05/31/23 $21,408 $24,963 $21,674 06/30/23 $23,824 $26,612 $24,120 07/31/23 $24,514 $27,467 $24,820 08/31/23 $24,024 $27,030 $24,326 09/30/23 $22,592 $25,741 $22,875 10/31/23 $21,931 $25,200 $22,207 11/30/23 $23,864 $27,501 $24,166 12/31/23 $25,534 $28,750 $25,860 01/31/24 $25,307 $29,233 $25,632 02/29/24 $27,135 $30,794 $27,486 03/31/24 $28,328 $31,785 $28,698 04/30/24 $27,314 $30,487 $27,672 05/31/24 $27,762 $31,999 $28,129 06/30/24 $27,501 $33,147 $27,866 07/31/24 $28,846 $33,550 $29,230 08/31/24 $29,669 $34,364 $30,066 09/30/24 $30,670 $35,098 $31,084 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLI 35.75% 13.62% 11.86% S&P 500 Index 36.35% 15.98% 13.38% Industrial Select Sector Index 35.89% 13.76% 12.01% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 19,537,107,137 |
| Holdings Count | Holding | 81 |
| Advisory Fees Paid, Amount | $ 5,227,008 |
| InvestmentCompanyPortfolioTurnover | 7% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $19,537,107,137 Number of Portfolio Holdings 81 Portfolio Turnover Rate 7% Total Advisory Fees Paid $5,227,008 |
| Holdings [Text Block] | Top Ten Industry Industry % Value of Total Net Assets Machinery 19.9% Aerospace & Defense 18.0% Ground Transportation 11.6% Industrial Conglomerates 10.0% Electrical Equipment 8.3% Professional Services 7.6% Commercial Services & Supplies 6.6% Building Products 6.5% Air Freight & Logistics 4.6% Trading Companies & Distributors 3.4% Top Ten Holdings Holdings % Value of Total Net Assets General Electric Co. 4.9% Caterpillar, Inc. 4.6% RTX Corp. 3.9% Uber Technologies, Inc. 3.8% Union Pacific Corp. 3.6% Honeywell International, Inc. 3.2% Eaton Corp. PLC 3.2% Lockheed Martin Corp. 3.0% Automatic Data Processing, Inc. 2.7% Deere & Co. 2.6% |
| Material Fund Change [Text Block] | |
| C000017600 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Materials Select Sector SPDR Fund |
| Trading Symbol | XLB |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Materials Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLB. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLB |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Materials Select Sector SPDR Fund $9 0.08% |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund for the reporting period was driven by a cut in interest rates, easing inflation, and high demand for various metals, chemicals, construction materials, and containers & packaging. During the reporting period, the Fund's use of their current investment strategies did not cause the Fund's performance to materially deviate from the manager's expectations considering the uncertainty of the markets. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLB S&P 500 Index Materials Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $9,764 $10,244 $9,765 11/30/14 $9,912 $10,520 $9,915 12/31/14 $9,861 $10,493 $9,865 01/31/15 $9,673 $10,178 $9,678 02/28/15 $10,448 $10,763 $10,457 03/31/15 $9,951 $10,593 $9,959 04/30/15 $10,263 $10,695 $10,274 05/31/15 $10,308 $10,832 $10,320 06/30/15 $9,905 $10,622 $9,915 07/31/15 $9,402 $10,845 $9,413 08/31/15 $8,882 $10,191 $8,892 09/30/15 $8,225 $9,939 $8,230 10/31/15 $9,332 $10,777 $9,341 11/30/15 $9,408 $10,809 $9,419 12/31/15 $9,015 $10,638 $9,026 01/31/16 $8,045 $10,111 $8,054 02/29/16 $8,672 $10,097 $8,685 03/31/16 $9,325 $10,782 $9,342 04/30/16 $9,803 $10,824 $9,823 05/31/16 $9,773 $11,018 $9,794 06/30/16 $9,697 $11,047 $9,716 07/31/16 $10,194 $11,454 $10,216 08/31/16 $10,172 $11,470 $10,196 09/30/16 $10,044 $11,472 $10,068 10/31/16 $9,831 $11,263 $9,856 11/30/16 $10,503 $11,680 $10,532 12/31/16 $10,517 $11,911 $10,548 01/31/17 $11,001 $12,137 $11,035 02/28/17 $11,075 $12,619 $11,111 03/31/17 $11,128 $12,633 $11,165 04/30/17 $11,285 $12,763 $11,325 05/31/17 $11,274 $12,943 $11,315 06/30/17 $11,479 $13,023 $11,523 07/31/17 $11,655 $13,291 $11,700 08/31/17 $11,754 $13,332 $11,802 09/30/17 $12,185 $13,607 $12,212 10/31/17 $12,652 $13,925 $12,682 11/30/17 $12,779 $14,352 $12,812 12/31/17 $13,035 $14,511 $13,071 01/31/18 $13,567 $15,342 $13,606 02/28/18 $12,856 $14,777 $12,893 03/31/18 $12,319 $14,401 $12,353 04/30/18 $12,335 $14,456 $12,370 05/31/18 $12,592 $14,804 $12,629 06/30/18 $12,622 $14,896 $12,659 07/31/18 $12,979 $15,450 $13,019 08/31/18 $12,896 $15,953 $12,937 09/30/18 $12,653 $16,044 $12,693 10/31/18 $11,492 $14,947 $11,527 11/30/18 $11,940 $15,252 $11,978 12/31/18 $11,109 $13,875 $11,143 01/31/19 $11,718 $14,987 $11,757 02/28/19 $12,101 $15,468 $12,143 03/31/19 $12,249 $15,769 $12,293 04/30/19 $12,687 $16,407 $12,735 05/31/19 $11,650 $15,364 $11,692 06/30/19 $13,006 $16,447 $13,062 07/31/19 $12,959 $16,684 $13,016 08/31/19 $12,602 $16,419 $12,658 09/30/19 $12,987 $16,727 $13,048 10/31/19 $12,984 $17,089 $13,045 11/30/19 $13,394 $17,709 $13,460 12/31/19 $13,795 $18,244 $13,866 01/31/20 $12,938 $18,237 $13,004 02/29/20 $11,849 $16,735 $11,909 03/31/20 $10,174 $14,668 $10,222 04/30/20 $11,718 $16,549 $11,777 05/31/20 $12,531 $17,337 $12,597 06/30/20 $12,798 $17,682 $12,867 07/31/20 $13,707 $18,679 $13,783 08/31/20 $14,313 $20,021 $14,394 09/30/20 $14,515 $19,260 $14,597 10/31/20 $14,411 $18,748 $14,494 11/30/20 $16,213 $20,801 $16,310 12/31/20 $16,601 $21,600 $16,703 01/31/21 $16,209 $21,382 $16,309 02/28/21 $16,867 $21,972 $16,936 03/31/21 $18,142 $22,934 $18,223 04/30/21 $19,115 $24,158 $19,201 05/31/21 $20,089 $24,327 $20,183 06/30/21 $19,039 $24,895 $19,127 07/31/21 $19,426 $25,486 $19,518 08/31/21 $19,799 $26,261 $19,896 09/30/21 $18,376 $25,040 $18,463 10/31/21 $19,772 $26,794 $19,871 11/30/21 $19,673 $26,608 $19,773 12/31/21 $21,156 $27,801 $21,270 01/31/22 $19,709 $26,362 $19,816 02/28/22 $19,463 $25,573 $19,570 03/31/22 $20,645 $26,522 $20,765 04/30/22 $19,923 $24,209 $20,040 05/31/22 $20,149 $24,254 $20,269 06/30/22 $17,363 $22,252 $17,464 07/31/22 $18,426 $24,304 $18,536 08/31/22 $17,786 $23,312 $17,892 09/30/22 $16,128 $21,165 $16,220 10/31/22 $17,578 $22,879 $17,680 11/30/22 $19,642 $24,158 $19,759 12/31/22 $18,551 $22,766 $18,661 01/31/23 $20,215 $24,196 $20,337 02/28/23 $19,546 $23,606 $19,665 03/31/23 $19,342 $24,473 $19,461 04/30/23 $19,314 $24,855 $19,434 05/31/23 $17,990 $24,963 $18,103 06/30/23 $19,978 $26,612 $20,104 07/31/23 $20,658 $27,467 $20,790 08/31/23 $19,980 $27,030 $20,109 09/30/23 $19,026 $25,741 $19,147 10/31/23 $18,419 $25,200 $18,537 11/30/23 $19,957 $27,501 $20,087 12/31/23 $20,863 $28,750 $21,001 01/31/24 $20,057 $29,233 $20,192 02/29/24 $21,364 $30,794 $21,509 03/31/24 $22,744 $31,785 $22,901 04/30/24 $21,699 $30,487 $21,851 05/31/24 $22,396 $31,999 $22,554 06/30/24 $21,718 $33,147 $21,871 07/31/24 $22,658 $33,550 $22,820 08/31/24 $23,190 $34,364 $23,357 09/30/24 $23,817 $35,098 $23,993 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLB 25.18% 12.89% 9.07% S&P 500 Index 36.35% 15.98% 13.38% Materials Select Sector Index 25.31% 12.96% 9.15% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 5,555,902,118 |
| Holdings Count | Holding | 31 |
| Advisory Fees Paid, Amount | $ 1,658,613 |
| InvestmentCompanyPortfolioTurnover | 13% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $5,555,902,118 Number of Portfolio Holdings 31 Portfolio Turnover Rate 13% Total Advisory Fees Paid $1,658,613 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Chemicals 63.9% Metals & Mining 16.1% Containers & Packaging 12.6% Construction Materials 7.2% Top Ten Holdings Holdings % Value of Total Net Assets Linde PLC 17.5% Sherwin-Williams Co. 6.8% Freeport-McMoRan, Inc. 5.5% Air Products & Chemicals, Inc. 5.1% Ecolab, Inc. 4.9% Newmont Corp. 4.7% Corteva, Inc. 4.5% Dow, Inc. 4.2% DuPont de Nemours, Inc. 4.1% Nucor Corp. 3.9% |
| Material Fund Change [Text Block] | |
| C000161049 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Real Estate Select Sector SPDR Fund |
| Trading Symbol | XLRE |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Real Estate Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLRE. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLRE |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Real Estate Select Sector SPDR Fund $9 0.08% |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The market environment over the reporting period was largely driven by speculation about inflation and when and by how much the U.S. Federal Reserve (“the Fed”) and other central banks would begin cutting rates. With the Fed finally cutting rates in September by 0.50%, the year-long speculation about the timing of the Fed’s directional shift was finally put to rest, and markets ended the year-long period with significant gains and at the highest levels. Due to the capital-intensive nature of real estate, the sector is particularly sensitive to interest rates changes. The Fund advanced over 35% and slightly underperformed the S&P 500 Index over the reporting period. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLRE S&P 500 Index Real Estate Select Sector Index 10/07/15 $10,000 $10,000 $10,000 10/31/15 $10,315 $10,425 $10,316 11/30/15 $10,248 $10,456 $10,252 12/31/15 $10,458 $10,292 $10,468 01/31/16 $9,980 $9,781 $9,988 02/29/16 $9,872 $9,768 $9,879 03/31/16 $10,912 $10,430 $10,931 04/30/16 $10,672 $10,471 $10,691 05/31/16 $10,841 $10,659 $10,861 06/30/16 $11,531 $10,686 $11,554 07/31/16 $11,866 $11,080 $11,891 08/31/16 $11,443 $11,096 $11,466 09/30/16 $11,292 $11,098 $11,312 10/31/16 $10,672 $10,896 $10,691 11/30/16 $10,343 $11,299 $10,363 12/31/16 $10,792 $11,522 $10,814 01/31/17 $10,784 $11,741 $10,807 02/28/17 $11,287 $12,207 $11,313 03/31/17 $11,169 $12,221 $11,197 04/30/17 $11,179 $12,347 $11,208 05/31/17 $11,258 $12,521 $11,289 06/30/17 $11,472 $12,599 $11,506 07/31/17 $11,607 $12,858 $11,644 08/31/17 $11,738 $12,897 $11,776 09/30/17 $11,576 $13,163 $11,613 10/31/17 $11,662 $13,470 $11,700 11/30/17 $12,006 $13,883 $12,048 12/31/17 $11,947 $14,038 $11,987 01/31/18 $11,723 $14,842 $11,761 02/28/18 $10,935 $14,295 $10,971 03/31/18 $11,347 $13,931 $11,386 04/30/18 $11,276 $13,985 $11,315 05/31/18 $11,529 $14,322 $11,570 06/30/18 $12,036 $14,410 $12,084 07/31/18 $12,165 $14,946 $12,214 08/31/18 $12,467 $15,433 $12,519 09/30/18 $12,140 $15,521 $12,188 10/31/18 $11,938 $14,460 $11,984 11/30/18 $12,607 $14,755 $12,658 12/31/18 $11,676 $13,422 $11,721 01/31/19 $12,932 $14,498 $12,985 02/28/19 $13,075 $14,964 $13,130 03/31/19 $13,716 $15,254 $13,776 04/30/19 $13,650 $15,872 $13,711 05/31/19 $13,807 $14,863 $13,870 06/30/19 $14,055 $15,911 $14,115 07/31/19 $14,297 $16,139 $14,360 08/31/19 $14,991 $15,884 $15,060 09/30/19 $15,132 $16,181 $15,203 10/31/19 $15,114 $16,531 $15,186 11/30/19 $14,852 $17,132 $14,925 12/31/19 $15,043 $17,649 $15,121 01/31/20 $15,255 $17,642 $15,336 02/29/20 $14,286 $16,189 $14,363 03/31/20 $12,141 $14,190 $12,216 04/30/20 $13,286 $16,009 $13,374 05/31/20 $13,539 $16,771 $13,630 06/30/20 $13,740 $17,105 $13,831 07/31/20 $14,286 $18,069 $14,383 08/31/20 $14,292 $19,368 $14,390 09/30/20 $14,003 $18,632 $14,096 10/31/20 $13,538 $18,137 $13,630 11/30/20 $14,484 $20,122 $14,585 12/31/20 $14,701 $20,896 $14,806 01/31/21 $14,778 $20,685 $14,884 02/28/21 $15,005 $21,255 $15,113 03/31/21 $16,020 $22,186 $16,142 04/30/21 $17,343 $23,370 $17,479 05/31/21 $17,551 $23,533 $17,691 06/30/21 $18,109 $24,083 $18,255 07/31/21 $18,947 $24,655 $19,101 08/31/21 $19,477 $25,404 $19,638 09/30/21 $18,263 $24,223 $18,415 10/31/21 $19,640 $25,920 $19,805 11/30/21 $19,470 $25,740 $19,636 12/31/21 $21,460 $26,894 $21,645 01/31/22 $19,634 $25,502 $19,805 02/28/22 $18,667 $24,739 $18,832 03/31/22 $20,120 $25,657 $20,299 04/30/22 $19,402 $23,420 $19,577 05/31/22 $18,427 $23,463 $18,594 06/30/22 $17,144 $21,526 $17,311 07/31/22 $18,606 $23,511 $18,789 08/31/22 $17,561 $22,552 $17,734 09/30/22 $15,257 $20,475 $15,401 10/31/22 $15,567 $22,133 $15,716 11/30/22 $16,640 $23,370 $16,801 12/31/22 $15,837 $22,023 $15,990 01/31/23 $17,403 $23,407 $17,573 02/28/23 $16,371 $22,836 $16,532 03/31/23 $16,146 $23,674 $16,301 04/30/23 $16,301 $24,044 $16,459 05/31/23 $15,565 $24,148 $15,717 06/30/23 $16,440 $25,744 $16,596 07/31/23 $16,644 $26,571 $16,803 08/31/23 $16,145 $26,148 $16,300 09/30/23 $14,981 $24,901 $15,119 10/31/23 $14,561 $24,378 $14,696 11/30/23 $16,374 $26,604 $16,527 12/31/23 $17,797 $27,813 $17,965 01/31/24 $16,952 $28,280 $17,114 02/29/24 $17,388 $29,790 $17,556 03/31/24 $17,694 $30,749 $17,867 04/30/24 $16,190 $29,493 $16,348 05/31/24 $17,011 $30,955 $17,179 06/30/24 $17,355 $32,066 $17,525 07/31/24 $18,606 $32,456 $18,790 08/31/24 $19,681 $33,243 $19,878 09/30/24 $20,330 $33,953 $20,535 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years Since Inception 10/7/15 XLRE 35.70% 6.08% 8.22% S&P 500 Index 36.35% 15.98% 14.58% Real Estate Select Sector Index 35.83% 6.20% 8.34% |
| Performance Inception Date | Oct. 07, 2015 |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 8,303,552,033 |
| Holdings Count | Holding | 33 |
| Advisory Fees Paid, Amount | $ 1,790,961 |
| InvestmentCompanyPortfolioTurnover | 5% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $8,303,552,033 Number of Portfolio Holdings 33 Portfolio Turnover Rate 5% Total Advisory Fees Paid $1,790,961 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Specialized REITs 44.6% Retail REITs 12.5% Residential REITs 12.4% Industrial REITs 10.2% Health Care REITs 10.2% Real Estate Management & Development 6.0% Office REITs 2.7% Hotel & Resort REITs 1.1% Top Ten Holdings Holdings % Value of Total Net Assets Prologis, Inc. 10.2% American Tower Corp. 9.5% Equinix, Inc. 7.4% Welltower, Inc. 6.5% Public Storage 5.0% Realty Income Corp. 4.8% Simon Property Group, Inc. 4.5% Crown Castle, Inc. 4.5% Digital Realty Trust, Inc. 4.4% Extra Space Storage, Inc. 3.3% |
| Material Fund Change [Text Block] | |
| C000017601 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Technology Select Sector SPDR Fund |
| Trading Symbol | XLK |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Technology Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLK. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLK |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Technology Select Sector SPDR Fund $10 0.08% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund for the reporting period was driven by a cut in interest rates, easing inflation, positive earnings growth, Artificial Intelligence and other Technology-centered tailwinds and a resilient economy. During the reporting period, the Fund's use of their current investment strategies did not cause the Fund's performance to materially deviate from the manager's expectations considering the uncertainty of the markets. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLK S&P 500 Index Technology Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,166 $10,244 $10,167 11/30/14 $10,647 $10,520 $10,651 12/31/14 $10,415 $10,493 $10,419 01/31/15 $10,047 $10,178 $10,051 02/28/15 $10,857 $10,763 $10,866 03/31/15 $10,499 $10,593 $10,507 04/30/15 $10,776 $10,695 $10,786 05/31/15 $10,974 $10,832 $10,986 06/30/15 $10,529 $10,622 $10,539 07/31/15 $10,813 $10,845 $10,827 08/31/15 $10,237 $10,191 $10,250 09/30/15 $10,104 $9,939 $10,116 10/31/15 $11,147 $10,777 $11,165 11/30/15 $11,217 $10,809 $11,235 12/31/15 $11,002 $10,638 $11,022 01/31/16 $10,605 $10,111 $10,625 02/29/16 $10,526 $10,097 $10,547 03/31/16 $11,445 $10,782 $11,471 04/30/16 $10,873 $10,824 $10,897 05/31/16 $11,409 $11,018 $11,438 06/30/16 $11,248 $11,047 $11,275 07/31/16 $12,040 $11,454 $12,073 08/31/16 $12,189 $11,470 $12,224 09/30/16 $12,441 $11,472 $12,478 10/31/16 $12,350 $11,263 $12,389 11/30/16 $12,362 $11,680 $12,402 12/31/16 $12,632 $11,911 $12,676 01/31/17 $13,101 $12,137 $13,150 02/28/17 $13,695 $12,619 $13,749 03/31/17 $13,996 $12,633 $14,053 04/30/17 $14,274 $12,763 $14,335 05/31/17 $14,831 $12,943 $14,898 06/30/17 $14,427 $13,023 $14,494 07/31/17 $15,069 $13,291 $15,142 08/31/17 $15,504 $13,332 $15,583 09/30/17 $15,640 $13,607 $15,720 10/31/17 $16,654 $13,925 $16,744 11/30/17 $16,894 $14,352 $16,988 12/31/17 $16,962 $14,511 $17,059 01/31/18 $18,164 $15,342 $18,272 02/28/18 $18,097 $14,777 $18,206 03/31/18 $17,432 $14,401 $17,537 04/30/18 $17,432 $14,456 $17,540 05/31/18 $18,594 $14,804 $18,713 06/30/18 $18,563 $14,896 $18,685 07/31/18 $18,951 $15,450 $19,079 08/31/18 $20,208 $15,953 $20,348 09/30/18 $20,197 $16,044 $20,341 10/31/18 $18,589 $14,947 $18,721 11/30/18 $18,238 $15,252 $18,368 12/31/18 $16,697 $13,875 $16,814 01/31/19 $17,856 $14,987 $17,985 02/28/19 $19,082 $15,468 $19,225 03/31/19 $19,998 $15,769 $20,154 04/30/19 $21,280 $16,407 $21,450 05/31/19 $19,434 $15,364 $19,587 06/30/19 $21,201 $16,447 $21,375 07/31/19 $21,907 $16,684 $22,087 08/31/19 $21,579 $16,419 $21,760 09/30/19 $21,902 $16,727 $22,089 10/31/19 $22,750 $17,089 $22,949 11/30/19 $23,969 $17,709 $24,184 12/31/19 $25,040 $18,244 $25,270 01/31/20 $26,028 $18,237 $26,272 02/29/20 $24,137 $16,735 $24,359 03/31/20 $22,041 $14,668 $22,255 04/30/20 $25,076 $16,549 $25,326 05/31/20 $26,839 $17,337 $27,113 06/30/20 $28,747 $17,682 $29,049 07/31/20 $30,357 $18,679 $30,681 08/31/20 $33,991 $20,021 $34,365 09/30/20 $32,169 $19,260 $32,521 10/31/20 $30,525 $18,748 $30,862 11/30/20 $34,006 $20,801 $34,389 12/31/20 $35,949 $21,600 $36,362 01/31/21 $35,613 $21,382 $36,026 02/28/21 $36,106 $21,972 $36,526 03/31/21 $36,713 $22,934 $37,146 04/30/21 $38,639 $24,158 $39,101 05/31/21 $38,283 $24,327 $38,745 06/30/21 $40,939 $24,895 $41,439 07/31/21 $42,517 $25,486 $43,040 08/31/21 $44,027 $26,261 $44,573 09/30/21 $41,476 $25,040 $41,995 10/31/21 $44,860 $26,794 $45,425 11/30/21 $46,805 $26,608 $47,401 12/31/21 $48,362 $27,801 $48,984 01/31/22 $45,107 $26,362 $45,691 02/28/22 $42,856 $25,573 $43,412 03/31/22 $44,233 $26,522 $44,814 04/30/22 $39,419 $24,209 $39,939 05/31/22 $39,150 $24,254 $39,669 06/30/22 $35,519 $22,252 $35,999 07/31/22 $40,281 $24,304 $40,831 08/31/22 $37,787 $23,312 $38,304 09/30/22 $33,257 $21,165 $33,710 10/31/22 $35,812 $22,879 $36,302 11/30/22 $38,102 $24,158 $38,630 12/31/22 $34,960 $22,766 $35,443 01/31/23 $38,204 $24,196 $38,735 02/28/23 $38,360 $23,606 $38,894 03/31/23 $42,518 $24,473 $43,118 04/30/23 $42,462 $24,855 $43,065 05/31/23 $46,213 $24,963 $46,874 06/30/23 $49,072 $26,612 $49,777 07/31/23 $50,310 $27,467 $51,035 08/31/23 $49,535 $27,030 $50,254 09/30/23 $46,341 $25,741 $47,012 10/31/23 $46,379 $25,200 $47,054 11/30/23 $52,347 $27,501 $53,115 12/31/23 $54,532 $28,750 $55,338 01/31/24 $56,020 $29,233 $56,853 02/29/24 $58,690 $30,794 $59,568 03/31/24 $59,155 $31,785 $60,046 04/30/24 $55,711 $30,487 $56,554 05/31/24 $59,640 $31,999 $60,547 06/30/24 $64,322 $33,147 $65,305 07/31/24 $62,196 $33,550 $63,150 08/31/24 $62,661 $34,364 $63,627 09/30/24 $64,317 $35,098 $65,316 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLK 38.79% 24.04% 20.46% S&P 500 Index 36.35% 15.98% 13.38% Technology Select Sector Index 38.93% 24.21% 20.64% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 70,090,741,214 |
| Holdings Count | Holding | 72 |
| Advisory Fees Paid, Amount | $ 19,098,974 |
| InvestmentCompanyPortfolioTurnover | 39% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $70,090,741,214 Number of Portfolio Holdings 72 Portfolio Turnover Rate 39% Total Advisory Fees Paid $19,098,974 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Semiconductors & Semiconductor Equipment 35.0% Software 33.8% Technology Hardware, Storage & Peripherals 17.1% IT Services 6.3% Communications Equipment 4.6% Electronic Equipment, Instruments & Components 3.1% Top Ten Holdings Holdings % Value of Total Net Assets Apple, Inc. 15.0% Microsoft Corp. 13.6% NVIDIA Corp. 12.7% Broadcom, Inc. 4.5% Oracle Corp. 3.0% Advanced Micro Devices, Inc. 2.9% Salesforce, Inc. 2.9% Adobe, Inc. 2.5% Accenture PLC, Class A 2.4% Cisco Systems, Inc. 2.4% |
| Material Fund Change [Text Block] | |
| C000017602 | |
| Shareholder Report [Line Items] | |
| Fund Name | The Utilities Select Sector SPDR Fund |
| Trading Symbol | XLU |
| Security Exchange Name | NYSE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the The Utilities Select Sector SPDR Fund (the "Fund") for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.sectorspdrs.com/mainfund/XLU. You can also request this information about the Fund by contacting us at 1-866-SECTOR-ETF. |
| Additional Information Phone Number | 1-866-SECTOR-ETF |
| Additional Information Website | www.sectorspdrs.com/mainfund/XLU |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment The Utilities Select Sector SPDR Fund $10 0.08% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by speculation about inflation and when and by how much the U.S. Federal Reserve (“the Fed”) and other central banks would begin cutting rates. Alongside this interest rate story was the continuing prospect of an artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. And even though markets moved sideways in 3Q24 as investors rotated out of growth and tech stocks and back into value and small cap securities, they could not undo the reporting period’s significant influence driven by those mega-cap high-flyers. With the Fed finally cutting rates in September and by 50 bps, the year-long speculation about the timing of the Fed’s directional shift was finally put to rest, and markets ended the year-long period with significant gains and at the highest levels. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. |
| Line Graph [Table Text Block] | XLU S&P 500 Index Utilities Select Sector Index 09/30/14 $10,000 $10,000 $10,000 10/31/14 $10,799 $10,244 $10,803 11/30/14 $10,929 $10,520 $10,935 12/31/14 $11,308 $10,493 $11,320 01/31/15 $11,573 $10,178 $11,587 02/28/15 $10,836 $10,763 $10,848 03/31/15 $10,725 $10,593 $10,736 04/30/15 $10,674 $10,695 $10,687 05/31/15 $10,746 $10,832 $10,760 06/30/15 $10,106 $10,622 $10,115 07/31/15 $10,718 $10,845 $10,728 08/31/15 $10,350 $10,191 $10,359 09/30/15 $10,651 $9,939 $10,664 10/31/15 $10,767 $10,777 $10,782 11/30/15 $10,538 $10,809 $10,552 12/31/15 $10,758 $10,638 $10,779 01/31/16 $11,285 $10,111 $11,310 02/29/16 $11,505 $10,097 $11,531 03/31/16 $12,422 $10,782 $12,457 04/30/16 $12,122 $10,824 $12,156 05/31/16 $12,304 $11,018 $12,341 06/30/16 $13,256 $11,047 $13,304 07/31/16 $13,162 $11,454 $13,211 08/31/16 $12,424 $11,470 $12,469 09/30/16 $12,468 $11,472 $12,518 10/31/16 $12,574 $11,263 $12,627 11/30/16 $11,897 $11,680 $11,947 12/31/16 $12,480 $11,911 $12,537 01/31/17 $12,641 $12,137 $12,694 02/28/17 $13,302 $12,619 $13,363 03/31/17 $13,276 $12,633 $13,339 04/30/17 $13,378 $12,763 $13,444 05/31/17 $13,939 $12,943 $14,013 06/30/17 $13,561 $13,023 $13,634 07/31/17 $13,890 $13,291 $13,967 08/31/17 $14,340 $13,332 $14,422 09/30/17 $13,949 $13,607 $14,027 10/31/17 $14,489 $13,925 $14,572 11/30/17 $14,885 $14,352 $14,974 12/31/17 $13,979 $14,511 $14,053 01/31/18 $13,554 $15,342 $13,626 02/28/18 $13,031 $14,777 $13,099 03/31/18 $13,518 $14,401 $13,592 04/30/18 $13,800 $14,456 $13,877 05/31/18 $13,643 $14,804 $13,721 06/30/18 $14,017 $14,896 $14,101 07/31/18 $14,277 $15,450 $14,364 08/31/18 $14,435 $15,953 $14,524 09/30/18 $14,352 $16,044 $14,437 10/31/18 $14,630 $14,947 $14,720 11/30/18 $15,150 $15,252 $15,247 12/31/18 $14,543 $13,875 $14,633 01/31/19 $15,040 $14,987 $15,135 02/28/19 $15,662 $15,468 $15,765 03/31/19 $16,112 $15,769 $16,220 04/30/19 $16,259 $16,407 $16,370 05/31/19 $16,132 $15,364 $16,245 06/30/19 $16,666 $16,447 $16,784 07/31/19 $16,618 $16,684 $16,737 08/31/19 $17,469 $16,419 $17,601 09/30/19 $18,206 $16,727 $18,351 10/31/19 $18,065 $17,089 $18,210 11/30/19 $17,731 $17,709 $17,874 12/31/19 $18,336 $18,244 $18,489 01/31/20 $19,551 $18,237 $19,719 02/29/20 $17,628 $16,735 $17,771 03/31/20 $15,854 $14,668 $15,997 04/30/20 $16,361 $16,549 $16,511 05/31/20 $17,073 $17,337 $17,238 06/30/20 $16,280 $17,682 $16,434 07/31/20 $17,546 $18,679 $17,718 08/31/20 $17,082 $20,021 $17,249 09/30/20 $17,274 $19,260 $17,443 10/31/20 $18,141 $18,748 $18,322 11/30/20 $18,272 $20,801 $18,454 12/31/20 $18,399 $21,600 $18,583 01/31/21 $18,230 $21,382 $18,413 02/28/21 $17,118 $21,972 $17,286 03/31/21 $18,905 $22,934 $19,104 04/30/21 $19,709 $24,158 $19,921 05/31/21 $19,240 $24,327 $19,447 06/30/21 $18,824 $24,895 $19,026 07/31/21 $19,636 $25,486 $19,850 08/31/21 $20,414 $26,261 $20,640 09/30/21 $19,165 $25,040 $19,364 10/31/21 $20,068 $26,794 $20,280 11/30/21 $19,737 $26,608 $19,945 12/31/21 $21,635 $27,801 $21,867 01/31/22 $20,927 $26,362 $21,152 02/28/22 $20,537 $25,573 $20,760 03/31/22 $22,652 $26,522 $22,911 04/30/22 $21,690 $24,209 $21,937 05/31/22 $22,621 $24,254 $22,885 06/30/22 $21,496 $22,252 $21,746 07/31/22 $22,674 $24,304 $22,942 08/31/22 $22,789 $23,312 $23,059 09/30/22 $20,211 $21,165 $20,444 10/31/22 $20,624 $22,879 $20,863 11/30/22 $22,064 $24,158 $22,328 12/31/22 $21,946 $22,766 $22,209 01/31/23 $21,507 $24,196 $21,765 02/28/23 $20,242 $23,606 $20,482 03/31/23 $21,238 $24,473 $21,489 04/30/23 $21,632 $24,855 $21,890 05/31/23 $20,368 $24,963 $20,607 06/30/23 $20,704 $26,612 $20,946 07/31/23 $21,213 $27,467 $21,464 08/31/23 $19,909 $27,030 $20,142 09/30/23 $18,792 $25,741 $19,009 10/31/23 $19,032 $25,200 $19,253 11/30/23 $20,011 $27,501 $20,249 12/31/23 $20,393 $28,750 $20,637 01/31/24 $19,779 $29,233 $20,015 02/29/24 $19,997 $30,794 $20,239 03/31/24 $21,310 $31,785 $21,579 04/30/24 $21,660 $30,487 $21,935 05/31/24 $23,594 $31,999 $23,902 06/30/24 $22,298 $33,147 $22,584 07/31/24 $23,806 $33,550 $24,117 08/31/24 $24,958 $34,364 $25,290 09/30/24 $26,598 $35,098 $26,958 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XLU 41.54% 7.88% 10.28% S&P 500 Index 36.35% 15.98% 13.38% Utilities Select Sector Index 41.82% 8.00% 10.43% |
| Updated Performance Information Location [Text Block] | Updated performance information is available by calling 1-866-SECTOR-ETF www.sectorspdrs.com |
| AssetsNet | $ 18,501,150,421 |
| Holdings Count | Holding | 34 |
| Advisory Fees Paid, Amount | $ 4,284,215 |
| InvestmentCompanyPortfolioTurnover | 5% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of 9/30/2024 Statistic Value Total Net Assets $18,501,150,421 Number of Portfolio Holdings 34 Portfolio Turnover Rate 5% Total Advisory Fees Paid $4,284,215 |
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Electric Utilities 65.4% Multi-Utilities 25.7% Independent Power and Renewable Electricity Producers 4.5% Water Utilities 2.3% Gas Utilities 1.7% Top Ten Holdings Holdings % Value of Total Net Assets NextEra Energy, Inc. 14.1% Southern Co. 8.0% Duke Energy Corp. 7.2% Constellation Energy Corp. 6.6% American Electric Power Co., Inc. 4.4% Sempra 4.3% Dominion Energy, Inc. 3.9% Public Service Enterprise Group, Inc. 3.6% PG&E Corp. 3.4% Vistra Corp. 3.3% |
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Aug. 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | May 31, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | Apr. 30, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Aug. 31, 2021 | Jul. 31, 2021 | Jun. 30, 2021 | May 31, 2021 | Apr. 30, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2020 | Oct. 31, 2020 | Sep. 30, 2020 | Aug. 31, 2020 | Jul. 31, 2020 | Jun. 30, 2020 | May 31, 2020 | Apr. 30, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Aug. 31, 2019 | Jul. 31, 2019 | Jun. 30, 2019 | May 31, 2019 | Apr. 30, 2019 | Mar. 31, 2019 | Feb. 28, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | Nov. 30, 2018 | Oct. 31, 2018 | Sep. 30, 2018 | Aug. 31, 2018 | Jul. 31, 2018 | Jun. 30, 2018 | Jun. 17, 2018 | May 31, 2018 | Apr. 30, 2018 | Mar. 31, 2018 | Feb. 28, 2018 | Jan. 31, 2018 | Dec. 31, 2017 | Nov. 30, 2017 | Oct. 31, 2017 | Sep. 30, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Jun. 30, 2017 | May 31, 2017 | Apr. 30, 2017 | Mar. 31, 2017 | Feb. 28, 2017 | Jan. 31, 2017 | Dec. 31, 2016 | Nov. 30, 2016 | Oct. 31, 2016 | Sep. 30, 2016 | Aug. 31, 2016 | Jul. 31, 2016 | Jun. 30, 2016 | May 31, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Feb. 29, 2016 | Jan. 31, 2016 | Dec. 31, 2015 | Nov. 30, 2015 | Oct. 31, 2015 | Oct. 06, 2015 | Sep. 30, 2015 | Aug. 31, 2015 | Jul. 31, 2015 | Jun. 30, 2015 | May 31, 2015 | Apr. 30, 2015 | Mar. 31, 2015 | Feb. 28, 2015 | Jan. 31, 2015 | Dec. 31, 2014 | Nov. 30, 2014 | Oct. 31, 2014 | Sep. 30, 2014 | |
| C000201048 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 19,146 | $ 18,438 | $ 18,125 | $ 18,082 | $ 17,527 | $ 16,403 | $ 17,198 | $ 16,686 | $ 15,940 | $ 15,259 | $ 14,615 | $ 13,560 | $ 13,742 | $ 14,154 | $ 14,373 | $ 13,602 | $ 12,984 | $ 12,498 | $ 12,098 | $ 11,133 | $ 11,461 | $ 9,983 | $ 10,696 | $ 10,009 | $ 9,941 | $ 11,266 | $ 11,676 | $ 11,241 | $ 12,438 | $ 12,210 | $ 14,208 | $ 14,109 | $ 15,246 | $ 16,012 | $ 15,513 | $ 16,522 | $ 16,489 | $ 17,583 | $ 16,924 | $ 16,628 | $ 16,146 | $ 15,996 | $ 15,027 | $ 14,655 | $ 13,695 | $ 13,816 | $ 13,353 | $ 12,087 | $ 12,136 | $ 12,907 | $ 11,845 | $ 11,026 | $ 10,999 | $ 10,234 | $ 8,998 | $ 10,312 | $ 10,948 | $ 10,894 | $ 10,638 | $ 10,244 | $ 10,025 | $ 10,013 | $ 10,257 | $ 9,943 | $ 9,493 | $ 10,097 | $ 9,426 | $ 9,234 | $ 9,280 | $ 8,302 | $ 9,037 | $ 9,241 | $ 9,822 | $ 9,836 | $ 9,689 | $ 9,880 | $ 10,000 | ||||||||||||||||||||||||||||||||||||||||||||||
| C000017594 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLY | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,722 | 31,422 | 31,480 | 30,610 | 29,471 | 29,394 | 30,825 | 30,851 | 28,580 | 29,895 | 28,165 | 25,385 | 26,862 | 28,446 | 28,933 | 28,294 | 25,205 | 24,574 | 24,861 | 24,125 | 24,640 | 21,409 | 24,165 | 23,807 | 23,547 | 25,652 | 26,845 | 22,669 | 25,425 | 26,812 | 30,433 | 29,140 | 30,406 | 33,580 | 33,553 | 32,996 | 29,458 | 30,089 | 29,556 | 29,256 | 28,266 | 29,259 | 27,481 | 26,355 | 26,472 | 26,268 | 25,634 | 23,308 | 23,962 | 24,435 | 22,282 | 20,790 | 20,184 | 18,935 | 15,917 | 18,708 | 20,263 | 20,272 | 19,715 | 19,470 | 19,443 | 19,218 | 19,388 | 19,151 | 17,753 | 19,206 | 18,213 | 17,573 | 17,341 | 15,786 | 17,151 | 16,743 | 18,615 | 18,521 | 17,620 | 17,305 | $ 16,706 | $ 16,382 | $ 16,005 | $ 16,388 | $ 16,976 | $ 15,529 | $ 15,168 | $ 14,438 | $ 14,142 | $ 14,025 | $ 14,289 | $ 14,028 | $ 14,199 | $ 14,043 | $ 13,711 | $ 13,437 | $ 13,182 | $ 12,649 | $ 12,643 | $ 12,079 | $ 12,369 | $ 12,408 | $ 12,565 | $ 12,019 | $ 12,163 | $ 12,146 | $ 12,131 | $ 11,378 | $ 11,336 | $ 11,946 | $ 12,289 | $ 12,319 | $ 11,298 | $ 11,369 | $ 12,151 | $ 11,596 | $ 11,525 | $ 11,376 | $ 11,382 | $ 11,436 | $ 10,534 | $ 10,866 | $ 10,764 | $ 10,212 | $ 10,000 | ||
| C000017595 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Line Graph and Table Measure Name | XLP | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,001 | 23,721 | 22,382 | 22,018 | 22,062 | 21,553 | 21,794 | 21,104 | 20,662 | 20,401 | 19,872 | 19,082 | 19,350 | 20,318 | 21,151 | 20,715 | 20,146 | 21,473 | 20,721 | 19,882 | 20,351 | 20,579 | 21,159 | 19,925 | 18,283 | 19,906 | 20,278 | 19,646 | 20,130 | 20,993 | 20,482 | 20,179 | 20,449 | 20,750 | 18,772 | 19,045 | 18,399 | 19,199 | 18,980 | 18,584 | 18,681 | 18,359 | 17,996 | 16,624 | 16,836 | 17,719 | 17,420 | 16,202 | 16,698 | 16,977 | 16,224 | 15,188 | 15,221 | 14,972 | 13,998 | 14,802 | 16,139 | 16,088 | 15,700 | 15,491 | 15,559 | 15,295 | 14,976 | 14,635 | 13,902 | 14,425 | 14,023 | 13,506 | 13,261 | 12,623 | 13,889 | 13,559 | 13,282 | 13,163 | 13,099 | 12,595 | 12,055 | 12,247 | 12,772 | 12,890 | 13,951 | 13,721 | 13,427 | 12,720 | 12,933 | 13,027 | 13,166 | 13,080 | 13,384 | 13,031 | 12,896 | 12,947 | 12,352 | 12,151 | 11,791 | 12,312 | 12,410 | 12,613 | 12,676 | 12,780 | 12,147 | 12,054 | 12,220 | 11,671 | 11,643 | 11,572 | 11,247 | 11,350 | 10,745 | 10,697 | 11,365 | 10,768 | 10,958 | 10,864 | 10,958 | 11,172 | 10,717 | 10,832 | 10,925 | 10,359 | 10,000 | ||
| C000017596 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Line Graph and Table Measure Name | XLE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,421 | 14,856 | 15,181 | 14,851 | 15,054 | 15,119 | 15,255 | 13,800 | 13,371 | 13,439 | 13,428 | 13,532 | 14,357 | 14,015 | 13,790 | 12,789 | 11,961 | 13,295 | 12,935 | 12,942 | 13,895 | 13,531 | 13,957 | 13,768 | 11,018 | 12,182 | 11,869 | 10,838 | 13,038 | 11,261 | 11,437 | 10,476 | 9,777 | 8,230 | 7,987 | 8,417 | 7,633 | 7,008 | 7,146 | 7,798 | 7,482 | 7,073 | 7,025 | 6,834 | 5,581 | 5,378 | 5,148 | 4,016 | 4,195 | 4,905 | 4,953 | 5,204 | 5,264 | 5,158 | 3,945 | 6,105 | 7,121 | 8,005 | 7,544 | 7,421 | 7,584 | 7,305 | 7,950 | 8,090 | 7,406 | 8,330 | 8,320 | 8,148 | 7,964 | 7,159 | 8,176 | 8,309 | 9,373 | 9,149 | 9,470 | 9,335 | 9,277 | 9,007 | 8,231 | 8,093 | 9,073 | 8,746 | 8,329 | 8,184 | 8,248 | 7,497 | 7,923 | 7,717 | 7,732 | 8,014 | 8,263 | 8,382 | 8,555 | 8,840 | 8,698 | 8,014 | 8,249 | 7,957 | 7,825 | 7,924 | 7,712 | 7,778 | 7,139 | 6,489 | 6,671 | 6,906 | 7,714 | 7,719 | 6,948 | 7,485 | 7,809 | 8,459 | 8,764 | 9,244 | 8,648 | 8,776 | 8,392 | 8,793 | 8,804 | 9,656 | 10,000 | ||
| C000017597 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Line Graph and Table Measure Name | XLF | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 29,241 | 29,401 | 28,137 | 26,428 | 26,665 | 25,852 | 26,979 | 25,756 | 24,732 | 24,004 | 22,780 | 20,545 | 21,064 | 21,745 | 22,336 | 21,307 | 19,973 | 20,874 | 20,234 | 22,362 | 22,888 | 21,422 | 22,603 | 21,120 | 18,864 | 20,444 | 20,864 | 19,465 | 21,846 | 21,266 | 23,591 | 23,637 | 23,962 | 23,950 | 23,183 | 24,580 | 22,913 | 23,347 | 22,211 | 22,310 | 22,996 | 21,949 | 20,600 | 19,473 | 17,471 | 17,771 | 16,727 | 14,312 | 14,430 | 14,947 | 14,335 | 13,817 | 13,861 | 13,496 | 12,321 | 15,664 | 17,634 | 18,102 | 17,631 | 16,788 | 16,395 | 15,672 | 16,470 | 16,078 | 15,067 | 16,231 | 14,893 | 15,292 | 14,933 | 13,724 | 15,466 | 15,047 | 15,794 | 16,153 | 15,935 | 15,140 | 15,437 | 15,578 | 15,637 | 16,342 | 16,810 | 15,792 | 15,491 | 14,970 | 14,545 | 13,838 | 14,065 | 13,828 | 12,996 | 13,153 | 13,266 | 13,642 | 12,971 | 12,940 | 12,457 | 10,938 | 10,694 | 10,985 | 10,582 | 10,222 | 10,558 | 10,350 | 10,012 | 9,331 | 9,614 | 10,547 | 10,779 | 10,580 | 9,961 | 10,266 | 11,009 | 10,674 | 10,705 | 10,514 | 10,496 | 10,562 | 9,980 | 10,719 | 10,530 | 10,294 | 10,000 | ||
| C000017598 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Line Graph and Table Measure Name | XLV | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 28,349 | 28,833 | 27,438 | 26,732 | 26,234 | 25,626 | 26,998 | 26,373 | 25,556 | 24,811 | 23,793 | 22,576 | 23,326 | 24,036 | 24,201 | 23,959 | 22,963 | 23,991 | 23,277 | 22,773 | 23,871 | 24,327 | 24,801 | 23,666 | 21,577 | 22,151 | 23,508 | 22,755 | 23,383 | 23,054 | 24,191 | 22,922 | 23,159 | 24,837 | 22,798 | 23,503 | 22,354 | 23,666 | 23,120 | 22,045 | 21,544 | 21,147 | 20,345 | 19,580 | 20,002 | 19,724 | 18,985 | 17,594 | 18,267 | 18,667 | 18,185 | 17,260 | 17,681 | 17,120 | 15,204 | 15,815 | 16,941 | 17,414 | 16,814 | 16,010 | 15,235 | 15,262 | 15,340 | 15,589 | 14,622 | 14,975 | 15,378 | 15,304 | 15,128 | 14,433 | 15,791 | 14,754 | 15,812 | 15,364 | 14,724 | 13,814 | 13,595 | 13,566 | 13,404 | 13,832 | 14,479 | 13,579 | 13,670 | 13,285 | 13,389 | 13,265 | 13,030 | 12,932 | 12,366 | 12,270 | 12,082 | 12,134 | 11,404 | 11,157 | 11,078 | 10,862 | 11,621 | 11,683 | 12,083 | 11,521 | 11,403 | 11,160 | 10,844 | 10,559 | 10,611 | 11,482 | 11,283 | 11,331 | 10,522 | 11,148 | 12,097 | 11,773 | 11,807 | 11,295 | 11,453 | 11,351 | 10,879 | 10,745 | 10,889 | 10,533 | 10,000 | ||
| C000017599 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLI | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 30,670 | 29,669 | 28,846 | 27,501 | 27,762 | 27,314 | 28,328 | 27,135 | 25,307 | 25,534 | 23,864 | 21,931 | 22,592 | 24,024 | 24,514 | 23,824 | 21,408 | 22,109 | 22,375 | 22,231 | 22,433 | 21,631 | 22,292 | 20,672 | 18,146 | 20,266 | 20,851 | 19,044 | 20,569 | 20,669 | 22,352 | 21,624 | 21,817 | 22,901 | 21,744 | 22,535 | 21,087 | 22,469 | 22,217 | 22,023 | 22,522 | 21,840 | 21,085 | 19,367 | 18,122 | 18,937 | 18,715 | 16,143 | 16,379 | 16,504 | 15,198 | 14,568 | 14,283 | 13,543 | 12,458 | 15,426 | 17,009 | 17,087 | 17,099 | 16,372 | 16,198 | 15,726 | 16,152 | 16,047 | 14,884 | 16,134 | 15,500 | 15,678 | 14,739 | 13,234 | 14,815 | 14,270 | 15,998 | 15,658 | 15,614 | 14,551 | 15,048 | 14,612 | 15,032 | 15,448 | 16,069 | 15,228 | 14,920 | 14,336 | 14,229 | 13,662 | 13,627 | 13,595 | 13,405 | 13,171 | 12,928 | 13,016 | 12,531 | 12,296 | 12,253 | 11,240 | 11,472 | 11,456 | 11,347 | 10,947 | 10,866 | 10,916 | 10,784 | 10,073 | 9,671 | 10,251 | 10,514 | 10,427 | 9,591 | 9,802 | 10,360 | 10,339 | 10,612 | 10,577 | 10,612 | 10,884 | 10,323 | 10,707 | 10,709 | 10,394 | 10,000 | ||
| C000017600 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,817 | 23,190 | 22,658 | 21,718 | 22,396 | 21,699 | 22,744 | 21,364 | 20,057 | 20,863 | 19,957 | 18,419 | 19,026 | 19,980 | 20,658 | 19,978 | 17,990 | 19,314 | 19,342 | 19,546 | 20,215 | 18,551 | 19,642 | 17,578 | 16,128 | 17,786 | 18,426 | 17,363 | 20,149 | 19,923 | 20,645 | 19,463 | 19,709 | 21,156 | 19,673 | 19,772 | 18,376 | 19,799 | 19,426 | 19,039 | 20,089 | 19,115 | 18,142 | 16,867 | 16,209 | 16,601 | 16,213 | 14,411 | 14,515 | 14,313 | 13,707 | 12,798 | 12,531 | 11,718 | 10,174 | 11,849 | 12,938 | 13,795 | 13,394 | 12,984 | 12,987 | 12,602 | 12,959 | 13,006 | 11,650 | 12,687 | 12,249 | 12,101 | 11,718 | 11,109 | 11,940 | 11,492 | 12,653 | 12,896 | 12,979 | 12,622 | 12,592 | 12,335 | 12,319 | 12,856 | 13,567 | 13,035 | 12,779 | 12,652 | 12,185 | 11,754 | 11,655 | 11,479 | 11,274 | 11,285 | 11,128 | 11,075 | 11,001 | 10,517 | 10,503 | 9,831 | 10,044 | 10,172 | 10,194 | 9,697 | 9,773 | 9,803 | 9,325 | 8,672 | 8,045 | 9,015 | 9,408 | 9,332 | 8,225 | 8,882 | 9,402 | 9,905 | 10,308 | 10,263 | 9,951 | 10,448 | 9,673 | 9,861 | 9,912 | 9,764 | 10,000 | ||
| C000161049 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLRE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 20,330 | 19,681 | 18,606 | 17,355 | 17,011 | 16,190 | 17,694 | 17,388 | 16,952 | 17,797 | 16,374 | 14,561 | 14,981 | 16,145 | 16,644 | 16,440 | 15,565 | 16,301 | 16,146 | 16,371 | 17,403 | 15,837 | 16,640 | 15,567 | 15,257 | 17,561 | 18,606 | 17,144 | 18,427 | 19,402 | 20,120 | 18,667 | 19,634 | 21,460 | 19,470 | 19,640 | 18,263 | 19,477 | 18,947 | 18,109 | 17,551 | 17,343 | 16,020 | 15,005 | 14,778 | 14,701 | 14,484 | 13,538 | 14,003 | 14,292 | 14,286 | 13,740 | 13,539 | 13,286 | 12,141 | 14,286 | 15,255 | 15,043 | 14,852 | 15,114 | 15,132 | 14,991 | 14,297 | 14,055 | 13,807 | 13,650 | 13,716 | 13,075 | 12,932 | 11,676 | 12,607 | 11,938 | 12,140 | 12,467 | 12,165 | 12,036 | 11,529 | 11,276 | 11,347 | 10,935 | 11,723 | 11,947 | 12,006 | 11,662 | 11,576 | 11,738 | 11,607 | 11,472 | 11,258 | 11,179 | 11,169 | 11,287 | 10,784 | 10,792 | 10,343 | 10,672 | 11,292 | 11,443 | 11,866 | 11,531 | 10,841 | 10,672 | 10,912 | 9,872 | 9,980 | 10,458 | 10,248 | 10,315 | $ 10,000 | ||||||||||||||
| C000017601 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 64,317 | 62,661 | 62,196 | 64,322 | 59,640 | 55,711 | 59,155 | 58,690 | 56,020 | 54,532 | 52,347 | 46,379 | 46,341 | 49,535 | 50,310 | 49,072 | 46,213 | 42,462 | 42,518 | 38,360 | 38,204 | 34,960 | 38,102 | 35,812 | 33,257 | 37,787 | 40,281 | 35,519 | 39,150 | 39,419 | 44,233 | 42,856 | 45,107 | 48,362 | 46,805 | 44,860 | 41,476 | 44,027 | 42,517 | 40,939 | 38,283 | 38,639 | 36,713 | 36,106 | 35,613 | 35,949 | 34,006 | 30,525 | 32,169 | 33,991 | 30,357 | 28,747 | 26,839 | 25,076 | 22,041 | 24,137 | 26,028 | 25,040 | 23,969 | 22,750 | 21,902 | 21,579 | 21,907 | 21,201 | 19,434 | 21,280 | 19,998 | 19,082 | 17,856 | 16,697 | 18,238 | 18,589 | 20,197 | 20,208 | 18,951 | 18,563 | 18,594 | 17,432 | 17,432 | 18,097 | 18,164 | 16,962 | 16,894 | 16,654 | 15,640 | 15,504 | 15,069 | 14,427 | 14,831 | 14,274 | 13,996 | 13,695 | 13,101 | 12,632 | 12,362 | 12,350 | 12,441 | 12,189 | 12,040 | 11,248 | 11,409 | 10,873 | 11,445 | 10,526 | 10,605 | 11,002 | 11,217 | 11,147 | 10,104 | 10,237 | 10,813 | 10,529 | 10,974 | 10,776 | 10,499 | 10,857 | 10,047 | 10,415 | 10,647 | 10,166 | 10,000 | ||
| C000017602 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XLU | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 26,598 | 24,958 | 23,806 | 22,298 | 23,594 | 21,660 | 21,310 | 19,997 | 19,779 | 20,393 | 20,011 | 19,032 | 18,792 | 19,909 | 21,213 | 20,704 | 20,368 | 21,632 | 21,238 | 20,242 | 21,507 | 21,946 | 22,064 | 20,624 | 20,211 | 22,789 | 22,674 | 21,496 | 22,621 | 21,690 | 22,652 | 20,537 | 20,927 | 21,635 | 19,737 | 20,068 | 19,165 | 20,414 | 19,636 | 18,824 | 19,240 | 19,709 | 18,905 | 17,118 | 18,230 | 18,399 | 18,272 | 18,141 | 17,274 | 17,082 | 17,546 | 16,280 | 17,073 | 16,361 | 15,854 | 17,628 | 19,551 | 18,336 | 17,731 | 18,065 | 18,206 | 17,469 | 16,618 | 16,666 | 16,132 | 16,259 | 16,112 | 15,662 | 15,040 | 14,543 | 15,150 | 14,630 | 14,352 | 14,435 | 14,277 | 14,017 | 13,643 | 13,800 | 13,518 | 13,031 | 13,554 | 13,979 | 14,885 | 14,489 | 13,949 | 14,340 | 13,890 | 13,561 | 13,939 | 13,378 | 13,276 | 13,302 | 12,641 | 12,480 | 11,897 | 12,574 | 12,468 | 12,424 | 13,162 | 13,256 | 12,304 | 12,122 | 12,422 | 11,505 | 11,285 | 10,758 | 10,538 | 10,767 | 10,651 | 10,350 | 10,718 | 10,106 | 10,746 | 10,674 | 10,725 | 10,836 | 11,573 | 11,308 | 10,929 | 10,799 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,101 | 22,618 | 22,082 | 21,817 | 21,061 | 20,066 | 20,920 | 20,268 | 19,241 | 18,923 | 18,101 | 16,586 | 16,942 | 17,790 | 18,078 | 17,516 | 16,430 | 16,359 | 16,107 | 15,537 | 15,926 | 14,984 | 15,900 | 15,059 | 13,931 | 15,344 | 15,996 | 14,646 | 15,964 | 15,934 | 17,457 | 16,832 | 17,351 | 18,298 | 17,513 | 17,635 | 16,481 | 17,285 | 16,774 | 16,385 | 16,011 | 15,900 | 15,095 | 14,461 | 14,073 | 14,217 | 13,691 | 12,340 | 12,677 | 13,178 | 12,294 | 11,638 | 11,411 | 10,892 | 9,654 | 11,015 | 12,003 | 12,008 | 11,656 | 11,248 | 11,009 | 10,807 | 10,981 | 10,825 | 10,113 | 10,799 | 10,379 | 10,181 | 9,864 | 9,132 | 10,039 | 9,838 | 10,560 | 10,500 | 10,169 | 9,804 | 10,000 | ||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,953 | 33,243 | 32,456 | 32,066 | 30,955 | 29,493 | 30,749 | 29,790 | 28,280 | 27,813 | 26,604 | 24,378 | 24,901 | 26,148 | 26,571 | 25,744 | 24,148 | 24,044 | 23,674 | 22,836 | 23,407 | 22,023 | 23,370 | 22,133 | 20,475 | 22,552 | 23,511 | 21,526 | 23,463 | 23,420 | 25,657 | 24,739 | 25,502 | 26,894 | 25,740 | 25,920 | 24,223 | 25,404 | 24,655 | 24,083 | 23,533 | 23,370 | 22,186 | 21,255 | 20,685 | 20,896 | 20,122 | 18,137 | 18,632 | 19,368 | 18,069 | 17,105 | 16,771 | 16,009 | 14,190 | 16,189 | 17,642 | 17,649 | 17,132 | 16,531 | 16,181 | 15,884 | 16,139 | 15,911 | 14,863 | 15,872 | 15,254 | 14,964 | 14,498 | 13,422 | 14,755 | 14,460 | 15,521 | 15,433 | 14,946 | 14,410 | 14,322 | 13,985 | 13,931 | 14,295 | 14,842 | 14,038 | 13,883 | 13,470 | 13,163 | 12,897 | 12,858 | 12,599 | 12,521 | 12,347 | 12,221 | 12,207 | 11,741 | 11,522 | 11,299 | 10,896 | 11,098 | 11,096 | 11,080 | 10,686 | 10,659 | 10,471 | 10,430 | 9,768 | 9,781 | 10,292 | 10,456 | 10,425 | 10,000 | ||||||||||||||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,098 | 34,364 | 33,550 | 33,147 | 31,999 | 30,487 | 31,785 | 30,794 | 29,233 | 28,750 | 27,501 | 25,200 | 25,741 | 27,030 | 27,467 | 26,612 | 24,963 | 24,855 | 24,473 | 23,606 | 24,196 | 22,766 | 24,158 | 22,879 | 21,165 | 23,312 | 24,304 | 22,252 | 24,254 | 24,209 | 26,522 | 25,573 | 26,362 | 27,801 | 26,608 | 26,794 | 25,040 | 26,261 | 25,486 | 24,895 | 24,327 | 24,158 | 22,934 | 21,972 | 21,382 | 21,600 | 20,801 | 18,748 | 19,260 | 20,021 | 18,679 | 17,682 | 17,337 | 16,549 | 14,668 | 16,735 | 18,237 | 18,244 | 17,709 | 17,089 | 16,727 | 16,419 | 16,684 | 16,447 | 15,364 | 16,407 | 15,769 | 15,468 | 14,987 | 13,875 | 15,252 | 14,947 | 16,044 | 15,953 | 15,450 | 14,896 | 14,804 | 14,456 | 14,401 | 14,777 | 15,342 | 14,511 | 14,352 | 13,925 | 13,607 | 13,332 | 13,291 | 13,023 | 12,943 | 12,763 | 12,633 | 12,619 | 12,137 | 11,911 | 11,680 | 11,263 | 11,472 | 11,470 | 11,454 | 11,047 | 11,018 | 10,824 | 10,782 | 10,097 | 10,111 | 10,638 | 10,809 | 10,777 | 9,939 | 10,191 | 10,845 | 10,622 | 10,832 | 10,695 | 10,593 | 10,763 | 10,178 | 10,493 | 10,520 | 10,244 | 10,000 | ||
| SPDR ETFs Index: Communications Services Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Communications Services Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 19,266 | 18,550 | 18,236 | 18,191 | 17,631 | 16,499 | 17,299 | 16,782 | 16,029 | 15,341 | 14,691 | 13,628 | 13,816 | 14,230 | 14,449 | 13,672 | 13,050 | 12,560 | 12,157 | 11,185 | 11,513 | 10,024 | 10,740 | 10,048 | 9,984 | 11,318 | 11,729 | 11,291 | 12,492 | 12,262 | 14,271 | 14,168 | 15,311 | 16,080 | 15,577 | 16,588 | 16,554 | 17,651 | 16,989 | 16,689 | 16,203 | 16,052 | 15,077 | 14,703 | 13,736 | 13,857 | 13,391 | 12,117 | 12,165 | 12,939 | 11,872 | 11,051 | 11,024 | 10,256 | 9,015 | 10,330 | 10,968 | 10,912 | 10,655 | 10,259 | 10,038 | 10,025 | 10,269 | 9,953 | 9,502 | 10,106 | 9,432 | 9,242 | 9,287 | 8,305 | 9,042 | 9,245 | 9,825 | 9,839 | 9,690 | 9,882 | $ 10,000 | ||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Consumer Discretionary Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Consumer Discretionary Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 34,175 | 31,835 | 31,891 | 31,008 | 29,848 | 29,768 | 31,218 | 31,241 | 28,937 | 30,268 | 28,511 | 25,693 | 27,187 | 28,791 | 29,284 | 28,635 | 25,500 | 24,860 | 25,148 | 24,400 | 24,921 | 21,649 | 24,446 | 24,080 | 23,815 | 25,947 | 27,155 | 22,924 | 25,713 | 27,113 | 30,775 | 29,464 | 30,742 | 33,948 | 33,917 | 33,351 | 29,771 | 30,407 | 29,865 | 29,560 | 28,554 | 29,555 | 27,756 | 26,614 | 26,729 | 26,521 | 25,875 | 23,524 | 24,182 | 24,660 | 22,483 | 20,975 | 20,361 | 19,099 | 16,051 | 18,863 | 20,432 | 20,440 | 19,874 | 19,624 | 19,596 | 19,369 | 19,538 | 19,297 | 17,884 | 19,348 | 18,344 | 17,695 | 17,459 | 15,890 | 17,266 | 16,853 | 18,737 | 18,639 | 17,729 | 17,410 | 16,803 | 16,475 | 16,095 | 16,479 | 17,071 | 15,612 | 15,245 | 14,511 | 14,210 | 14,092 | 14,355 | 14,091 | 14,262 | 14,104 | 13,768 | 13,491 | 13,233 | 12,695 | 12,687 | 12,118 | 12,409 | 12,447 | 12,603 | 12,054 | 12,199 | 12,182 | 12,165 | 11,404 | 11,361 | 11,973 | 12,315 | 12,345 | 11,318 | 11,389 | 12,174 | 11,615 | 11,542 | 11,391 | 11,396 | 11,449 | 10,542 | 10,874 | 10,769 | 10,215 | 10,000 | ||
| SPDR ETFs Index: Consumer Staples Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Consumer Staples Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,336 | 24,049 | 22,687 | 22,315 | 22,358 | 21,839 | 22,083 | 21,379 | 20,928 | 20,661 | 20,120 | 19,317 | 19,588 | 20,572 | 21,417 | 20,973 | 20,394 | 21,742 | 20,976 | 20,123 | 20,597 | 20,826 | 21,413 | 20,160 | 18,491 | 20,137 | 20,514 | 19,871 | 20,350 | 21,226 | 20,707 | 20,396 | 20,669 | 20,972 | 18,964 | 19,237 | 18,582 | 19,392 | 19,168 | 18,766 | 18,862 | 18,534 | 18,165 | 16,772 | 16,985 | 17,876 | 17,572 | 16,339 | 16,840 | 17,122 | 16,359 | 15,310 | 15,344 | 15,091 | 14,105 | 14,914 | 16,262 | 16,209 | 15,815 | 15,602 | 15,669 | 15,401 | 15,077 | 14,732 | 13,992 | 14,518 | 14,111 | 13,587 | 13,339 | 12,695 | 13,970 | 13,637 | 13,357 | 13,238 | 13,171 | 12,662 | 12,117 | 12,310 | 12,839 | 12,958 | 14,026 | 13,794 | 13,494 | 12,781 | 12,993 | 13,088 | 13,227 | 13,139 | 13,445 | 13,088 | 12,951 | 13,001 | 12,400 | 12,197 | 11,833 | 12,358 | 12,455 | 12,658 | 12,720 | 12,823 | 12,186 | 12,090 | 12,256 | 11,703 | 11,673 | 11,599 | 11,269 | 11,371 | 10,762 | 10,713 | 11,383 | 10,782 | 10,974 | 10,878 | 10,971 | 11,183 | 10,726 | 10,840 | 10,931 | 10,362 | 10,000 | ||
| SPDR ETFs Index: Energy Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Energy Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,574 | 15,014 | 15,341 | 15,006 | 15,208 | 15,272 | 15,409 | 13,936 | 13,502 | 13,570 | 13,556 | 13,659 | 14,490 | 14,147 | 13,918 | 12,907 | 12,073 | 13,419 | 13,055 | 13,058 | 14,018 | 13,651 | 14,077 | 13,885 | 11,111 | 12,288 | 11,972 | 10,930 | 13,156 | 11,361 | 11,537 | 10,563 | 9,856 | 8,295 | 8,048 | 8,481 | 7,690 | 7,057 | 7,195 | 7,852 | 7,528 | 7,115 | 7,067 | 6,874 | 5,611 | 5,407 | 5,175 | 4,034 | 4,214 | 4,933 | 4,982 | 5,240 | 5,298 | 5,189 | 3,965 | 6,130 | 7,161 | 8,051 | 7,581 | 7,457 | 7,621 | 7,336 | 7,986 | 8,126 | 7,434 | 8,366 | 8,355 | 8,180 | 7,993 | 7,183 | 8,210 | 8,344 | 9,410 | 9,182 | 9,503 | 9,367 | 9,308 | 9,036 | 8,256 | 8,115 | 9,098 | 8,769 | 8,347 | 8,200 | 8,263 | 7,502 | 7,929 | 7,722 | 7,736 | 8,019 | 8,267 | 8,388 | 8,561 | 8,846 | 8,701 | 8,013 | 8,248 | 7,956 | 7,822 | 7,920 | 7,709 | 7,773 | 7,133 | 6,481 | 6,664 | 6,898 | 7,710 | 7,715 | 6,943 | 7,484 | 7,809 | 8,460 | 8,767 | 9,248 | 8,651 | 8,777 | 8,392 | 8,793 | 8,804 | 9,656 | 10,000 | ||
| SPDR ETFs Index: Financial Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Financial Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 29,567 | 29,729 | 28,445 | 26,719 | 26,958 | 26,133 | 27,274 | 26,031 | 24,991 | 24,252 | 23,010 | 20,745 | 21,269 | 21,958 | 22,555 | 21,512 | 20,162 | 21,072 | 20,422 | 22,580 | 23,110 | 21,625 | 22,819 | 21,318 | 19,036 | 20,638 | 21,062 | 19,645 | 22,048 | 21,462 | 23,813 | 23,857 | 24,184 | 24,171 | 23,393 | 24,802 | 23,115 | 23,551 | 22,400 | 22,498 | 23,185 | 22,126 | 20,762 | 19,623 | 17,601 | 17,900 | 16,843 | 14,408 | 14,526 | 15,051 | 14,432 | 13,908 | 13,952 | 13,583 | 12,396 | 15,753 | 17,738 | 18,208 | 17,731 | 16,880 | 16,482 | 15,751 | 16,553 | 16,157 | 15,138 | 16,308 | 14,961 | 15,362 | 14,999 | 13,781 | 15,532 | 15,109 | 15,860 | 16,221 | 15,999 | 15,198 | 15,495 | 15,636 | 15,694 | 16,402 | 16,872 | 15,846 | 15,541 | 15,015 | 14,587 | 13,873 | 14,100 | 13,861 | 13,024 | 13,184 | 13,296 | 13,675 | 12,999 | 12,969 | 12,482 | 10,955 | 10,709 | 11,009 | 10,602 | 10,239 | 10,579 | 10,368 | 10,027 | 9,343 | 9,626 | 10,561 | 10,790 | 10,590 | 9,967 | 10,274 | 11,018 | 10,685 | 10,717 | 10,524 | 10,505 | 10,569 | 9,984 | 10,725 | 10,534 | 10,297 | 10,000 | ||
| SPDR ETFs Index: Health Care Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Health Care Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 28,713 | 29,205 | 27,787 | 27,069 | 26,561 | 25,943 | 27,331 | 26,697 | 25,865 | 25,109 | 24,073 | 22,838 | 23,596 | 24,316 | 24,485 | 24,238 | 23,226 | 24,267 | 23,543 | 23,031 | 24,143 | 24,603 | 25,082 | 23,929 | 21,811 | 22,392 | 23,766 | 23,002 | 23,631 | 23,296 | 24,447 | 23,159 | 23,398 | 25,093 | 23,025 | 23,737 | 22,571 | 23,897 | 23,342 | 22,252 | 21,744 | 21,340 | 20,527 | 19,752 | 20,177 | 19,895 | 19,146 | 17,738 | 18,416 | 18,821 | 18,332 | 17,395 | 17,819 | 17,252 | 15,315 | 15,923 | 17,060 | 17,537 | 16,929 | 16,117 | 15,333 | 15,359 | 15,436 | 15,686 | 14,709 | 15,064 | 15,471 | 15,396 | 15,217 | 14,514 | 15,883 | 14,836 | 15,900 | 15,448 | 14,801 | 13,882 | 13,660 | 13,630 | 13,466 | 13,895 | 14,545 | 13,638 | 13,729 | 13,340 | 13,443 | 13,317 | 13,079 | 12,979 | 12,406 | 12,308 | 12,118 | 12,170 | 11,434 | 11,185 | 11,105 | 10,887 | 11,648 | 11,708 | 12,109 | 11,543 | 11,426 | 11,180 | 10,863 | 10,574 | 10,626 | 11,498 | 11,295 | 11,342 | 10,530 | 11,160 | 12,111 | 11,784 | 11,818 | 11,303 | 11,460 | 11,357 | 10,884 | 10,751 | 10,893 | 10,535 | 10,000 | ||
| SPDR ETFs Index: Industrial Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Industrial Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 31,084 | 30,066 | 29,230 | 27,866 | 28,129 | 27,672 | 28,698 | 27,486 | 25,632 | 25,860 | 24,166 | 22,207 | 22,875 | 24,326 | 24,820 | 24,120 | 21,674 | 22,382 | 22,650 | 22,502 | 22,704 | 21,891 | 22,560 | 20,917 | 18,361 | 20,509 | 21,102 | 19,271 | 20,810 | 20,910 | 22,612 | 21,872 | 22,065 | 23,160 | 21,987 | 22,784 | 21,317 | 22,713 | 22,456 | 22,258 | 22,761 | 22,069 | 21,304 | 19,560 | 18,299 | 19,122 | 18,896 | 16,293 | 16,530 | 16,657 | 15,335 | 14,697 | 14,408 | 13,657 | 12,560 | 15,541 | 17,140 | 17,217 | 17,227 | 16,491 | 16,314 | 15,835 | 16,262 | 16,154 | 14,978 | 16,239 | 15,598 | 15,777 | 14,828 | 13,309 | 14,903 | 14,351 | 16,091 | 15,747 | 15,700 | 14,628 | 15,129 | 14,687 | 15,109 | 15,526 | 16,150 | 15,302 | 14,989 | 14,398 | 14,288 | 13,715 | 13,678 | 13,643 | 13,451 | 13,214 | 12,968 | 13,056 | 12,567 | 12,330 | 12,284 | 11,264 | 11,496 | 11,478 | 11,373 | 10,970 | 10,890 | 10,937 | 10,804 | 10,088 | 9,682 | 10,264 | 10,526 | 10,439 | 9,599 | 9,812 | 10,372 | 10,349 | 10,624 | 10,588 | 10,622 | 10,894 | 10,330 | 10,713 | 10,713 | 10,396 | 10,000 | ||
| SPDR ETFs Index: Materials Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Materials Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,993 | 23,357 | 22,820 | 21,871 | 22,554 | 21,851 | 22,901 | 21,509 | 20,192 | 21,001 | 20,087 | 18,537 | 19,147 | 20,109 | 20,790 | 20,104 | 18,103 | 19,434 | 19,461 | 19,665 | 20,337 | 18,661 | 19,759 | 17,680 | 16,220 | 17,892 | 18,536 | 17,464 | 20,269 | 20,040 | 20,765 | 19,570 | 19,816 | 21,270 | 19,773 | 19,871 | 18,463 | 19,896 | 19,518 | 19,127 | 20,183 | 19,201 | 18,223 | 16,936 | 16,309 | 16,703 | 16,310 | 14,494 | 14,597 | 14,394 | 13,783 | 12,867 | 12,597 | 11,777 | 10,222 | 11,909 | 13,004 | 13,866 | 13,460 | 13,045 | 13,048 | 12,658 | 13,016 | 13,062 | 11,692 | 12,735 | 12,293 | 12,143 | 11,757 | 11,143 | 11,978 | 11,527 | 12,693 | 12,937 | 13,019 | 12,659 | 12,629 | 12,370 | 12,353 | 12,893 | 13,606 | 13,071 | 12,812 | 12,682 | 12,212 | 11,802 | 11,700 | 11,523 | 11,315 | 11,325 | 11,165 | 11,111 | 11,035 | 10,548 | 10,532 | 9,856 | 10,068 | 10,196 | 10,216 | 9,716 | 9,794 | 9,823 | 9,342 | 8,685 | 8,054 | 9,026 | 9,419 | 9,341 | 8,230 | 8,892 | 9,413 | 9,915 | 10,320 | 10,274 | 9,959 | 10,457 | 9,678 | 9,865 | 9,915 | 9,765 | 10,000 | ||
| SPDR ETFs Index: Real Estate Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Real Estate Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 20,535 | 19,878 | 18,790 | 17,525 | 17,179 | 16,348 | 17,867 | 17,556 | 17,114 | 17,965 | 16,527 | 14,696 | 15,119 | 16,300 | 16,803 | 16,596 | 15,717 | 16,459 | 16,301 | 16,532 | 17,573 | 15,990 | 16,801 | 15,716 | 15,401 | 17,734 | 18,789 | 17,311 | 18,594 | 19,577 | 20,299 | 18,832 | 19,805 | 21,645 | 19,636 | 19,805 | 18,415 | 19,638 | 19,101 | 18,255 | 17,691 | 17,479 | 16,142 | 15,113 | 14,884 | 14,806 | 14,585 | 13,630 | 14,096 | 14,390 | 14,383 | 13,831 | 13,630 | 13,374 | 12,216 | 14,363 | 15,336 | 15,121 | 14,925 | 15,186 | 15,203 | 15,060 | 14,360 | 14,115 | 13,870 | 13,711 | 13,776 | 13,130 | 12,985 | 11,721 | 12,658 | 11,984 | 12,188 | 12,519 | 12,214 | 12,084 | 11,570 | 11,315 | 11,386 | 10,971 | 11,761 | 11,987 | 12,048 | 11,700 | 11,613 | 11,776 | 11,644 | 11,506 | 11,289 | 11,208 | 11,197 | 11,313 | 10,807 | 10,814 | 10,363 | 10,691 | 11,312 | 11,466 | 11,891 | 11,554 | 10,861 | 10,691 | 10,931 | 9,879 | 9,988 | 10,468 | 10,252 | 10,316 | $ 10,000 | ||||||||||||||
| SPDR ETFs Index: Technology Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Technology Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 65,316 | 63,627 | 63,150 | 65,305 | 60,547 | 56,554 | 60,046 | 59,568 | 56,853 | 55,338 | 53,115 | 47,054 | 47,012 | 50,254 | 51,035 | 49,777 | 46,874 | 43,065 | 43,118 | 38,894 | 38,735 | 35,443 | 38,630 | 36,302 | 33,710 | 38,304 | 40,831 | 35,999 | 39,669 | 39,939 | 44,814 | 43,412 | 45,691 | 48,984 | 47,401 | 45,425 | 41,995 | 44,573 | 43,040 | 41,439 | 38,745 | 39,101 | 37,146 | 36,526 | 36,026 | 36,362 | 34,389 | 30,862 | 32,521 | 34,365 | 30,681 | 29,049 | 27,113 | 25,326 | 22,255 | 24,359 | 26,272 | 25,270 | 24,184 | 22,949 | 22,089 | 21,760 | 22,087 | 21,375 | 19,587 | 21,450 | 20,154 | 19,225 | 17,985 | 16,814 | 18,368 | 18,721 | 20,341 | 20,348 | 19,079 | 18,685 | 18,713 | 17,540 | 17,537 | 18,206 | 18,272 | 17,059 | 16,988 | 16,744 | 15,720 | 15,583 | 15,142 | 14,494 | 14,898 | 14,335 | 14,053 | 13,749 | 13,150 | 12,676 | 12,402 | 12,389 | 12,478 | 12,224 | 12,073 | 11,275 | 11,438 | 10,897 | 11,471 | 10,547 | 10,625 | 11,022 | 11,235 | 11,165 | 10,116 | 10,250 | 10,827 | 10,539 | 10,986 | 10,786 | 10,507 | 10,866 | 10,051 | 10,419 | 10,651 | 10,167 | 10,000 | ||
| SPDR ETFs Index: Utilities Select Sector Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Utilities Select Sector Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 26,958 | $ 25,290 | $ 24,117 | $ 22,584 | $ 23,902 | $ 21,935 | $ 21,579 | $ 20,239 | $ 20,015 | $ 20,637 | $ 20,249 | $ 19,253 | $ 19,009 | $ 20,142 | $ 21,464 | $ 20,946 | $ 20,607 | $ 21,890 | $ 21,489 | $ 20,482 | $ 21,765 | $ 22,209 | $ 22,328 | $ 20,863 | $ 20,444 | $ 23,059 | $ 22,942 | $ 21,746 | $ 22,885 | $ 21,937 | $ 22,911 | $ 20,760 | $ 21,152 | $ 21,867 | $ 19,945 | $ 20,280 | $ 19,364 | $ 20,640 | $ 19,850 | $ 19,026 | $ 19,447 | $ 19,921 | $ 19,104 | $ 17,286 | $ 18,413 | $ 18,583 | $ 18,454 | $ 18,322 | $ 17,443 | $ 17,249 | $ 17,718 | $ 16,434 | $ 17,238 | $ 16,511 | $ 15,997 | $ 17,771 | $ 19,719 | $ 18,489 | $ 17,874 | $ 18,210 | $ 18,351 | $ 17,601 | $ 16,737 | $ 16,784 | $ 16,245 | $ 16,370 | $ 16,220 | $ 15,765 | $ 15,135 | $ 14,633 | $ 15,247 | $ 14,720 | $ 14,437 | $ 14,524 | $ 14,364 | $ 14,101 | $ 13,721 | $ 13,877 | $ 13,592 | $ 13,099 | $ 13,626 | $ 14,053 | $ 14,974 | $ 14,572 | $ 14,027 | $ 14,422 | $ 13,967 | $ 13,634 | $ 14,013 | $ 13,444 | $ 13,339 | $ 13,363 | $ 12,694 | $ 12,537 | $ 11,947 | $ 12,627 | $ 12,518 | $ 12,469 | $ 13,211 | $ 13,304 | $ 12,341 | $ 12,156 | $ 12,457 | $ 11,531 | $ 11,310 | $ 10,779 | $ 10,552 | $ 10,782 | $ 10,664 | $ 10,359 | $ 10,728 | $ 10,115 | $ 10,760 | $ 10,687 | $ 10,736 | $ 10,848 | $ 11,587 | $ 11,320 | $ 10,935 | $ 10,803 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 75 Months Ended | 108 Months Ended | 120 Months Ended |
| Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | |
| C000201048 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLC | ||||
| C000017594 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLY | ||||
| C000017595 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLP | ||||
| C000017596 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLE | ||||
| C000017597 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLF | ||||
| C000017598 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLV | ||||
| C000017599 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLI | ||||
| C000017600 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLB | ||||
| C000161049 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLRE | ||||
| C000017601 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLK | ||||
| C000017602 | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | XLU | ||||
| Without Sales Load [Member] | C000201048 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 39.32% | 13.81% | 10.88% | ||
| Without Sales Load [Member] | C000017594 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 25.54% | 11.64% | 12.93% | ||
| Without Sales Load [Member] | C000017595 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 24.04% | 9.06% | 9.15% | ||
| Without Sales Load [Member] | C000017596 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 0.45% | 13.71% | 3.73% | ||
| Without Sales Load [Member] | C000017597 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 38.82% | 12.27% | 11.33% | ||
| Without Sales Load [Member] | C000017598 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 21.53% | 13.22% | 10.98% | ||
| Without Sales Load [Member] | C000017599 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 35.75% | 13.62% | 11.86% | ||
| Without Sales Load [Member] | C000017600 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 25.18% | 12.89% | 9.07% | ||
| Without Sales Load [Member] | C000161049 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 35.70% | 6.08% | 8.22% | ||
| Without Sales Load [Member] | C000017601 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 38.79% | 24.04% | 20.46% | ||
| Without Sales Load [Member] | C000017602 | |||||
| Average Annual Return [Line Items] | |||||
| Average Annual Return, Percent | 41.54% | 7.88% | 10.28% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 14.25% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 14.58% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: S&P 500 Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||
| Average Annual Return, Percent | 36.35% | 15.98% | 13.38% | ||
| SPDR ETFs Index: Communications Services Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Communications Services Select Sector Index | ||||
| Average Annual Return, Percent | 39.45% | 13.93% | 11% | ||
| SPDR ETFs Index: Consumer Discretionary Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Consumer Discretionary Select Sector Index | ||||
| Average Annual Return, Percent | 25.71% | 11.77% | 13.08% | ||
| SPDR ETFs Index: Consumer Staples Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Consumer Staples Select Sector Index | ||||
| Average Annual Return, Percent | 24.23% | 9.20% | 9.30% | ||
| SPDR ETFs Index: Energy Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Energy Select Sector Index | ||||
| Average Annual Return, Percent | 0.58% | 13.85% | 3.84% | ||
| SPDR ETFs Index: Financial Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Financial Select Sector Index | ||||
| Average Annual Return, Percent | 39.01% | 12.40% | 11.45% | ||
| SPDR ETFs Index: Health Care Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Health Care Select Sector Index | ||||
| Average Annual Return, Percent | 21.69% | 13.37% | 11.12% | ||
| SPDR ETFs Index: Industrial Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Industrial Select Sector Index | ||||
| Average Annual Return, Percent | 35.89% | 13.76% | 12.01% | ||
| SPDR ETFs Index: Materials Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Materials Select Sector Index | ||||
| Average Annual Return, Percent | 25.31% | 12.96% | 9.15% | ||
| SPDR ETFs Index: Real Estate Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Real Estate Select Sector Index | ||||
| Average Annual Return, Percent | 35.83% | 6.20% | 8.34% | ||
| SPDR ETFs Index: Technology Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Technology Select Sector Index | ||||
| Average Annual Return, Percent | 38.93% | 24.21% | 20.64% | ||
| SPDR ETFs Index: Utilities Select Sector Index | |||||
| Average Annual Return [Line Items] | |||||
| Line Graph and Table Measure Name | Utilities Select Sector Index | ||||
| Average Annual Return, Percent | 41.82% | 8% | 10.43% |
| Shareholder Report, Holdings (Details) | Sep. 30, 2024 |
| C000201048 | Meta Platforms, Inc.FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.30% |
| C000201048 | Alphabet, Inc.FR_02079K305 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000201048 | Alphabet, Inc.FR_02079K107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| C000201048 | Netflix, Inc.FR_64110L106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000201048 | Walt Disney Co.FR_254687106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000201048 | Comcast Corp.FR_20030N101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000201048 | T-Mobile U.S., Inc.FR_872590104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000201048 | AT&T, Inc.FR_00206R102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000201048 | Verizon Communications, Inc.FR_92343V104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000201048 | Take-Two Interactive Software, Inc.FR_874054109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000201048 | IndustryInteractive Media & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 41.60% |
| C000201048 | IndustryEntertainment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.20% |
| C000201048 | IndustryMedia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.90% |
| C000201048 | IndustryDiversified Telecommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000201048 | IndustryWireless Telecommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000017594 | Amazon.com, Inc.FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.10% |
| C000017594 | Tesla, Inc.FR_88160R101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.70% |
| C000017594 | Home Depot, Inc.FR_437076102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000017594 | McDonald's Corp.FR_580135101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000017594 | Lowe's Cos., Inc.FR_548661107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000017594 | Booking Holdings, Inc.FR_09857L108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000017594 | TJX Cos., Inc.FR_872540109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000017594 | Starbucks Corp.FR_855244109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000017594 | NIKE, Inc.FR_654106103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000017594 | Chipotle Mexican Grill, Inc.FR_169656105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000017594 | IndustryHotels, Restaurants & Leisure | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000017594 | IndustrySpecialty Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.10% |
| C000017594 | IndustryBroadline Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.90% |
| C000017594 | IndustryAutomobiles | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000017594 | IndustryHousehold Durables | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000017594 | IndustryTextiles, Apparel & Luxury Goods | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000017594 | IndustryDistributors | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000017594 | IndustryAuto Components | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000017594 | IndustryLeisure Equipment & Products | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000017595 | Procter & Gamble Co.FR_742718109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000017595 | Costco Wholesale Corp.FR_22160K105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000017595 | Walmart, Inc.FR_931142103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000017595 | Coca-Cola Co.FR_191216100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000017595 | PepsiCo, Inc.FR_713448108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| C000017595 | Philip Morris International, Inc.FR_718172109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000017595 | Colgate-Palmolive Co.FR_194162103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000017595 | Mondelez International, Inc.FR_609207105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000017595 | Altria Group, Inc.FR_02209S103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000017595 | Target Corp.FR_87612E106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000017595 | IndustryConsumer Staples Distribution & Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.40% |
| C000017595 | IndustryBeverages | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20% |
| C000017595 | IndustryHousehold Products | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.50% |
| C000017595 | IndustryFood Products | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19% |
| C000017595 | IndustryTobacco | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| C000017595 | IndustryPersonal Care Products | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000017596 | Exxon Mobil Corp.FR_30231G102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.30% |
| C000017596 | Chevron Corp.FR_166764100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.50% |
| C000017596 | ConocoPhillipsFR_20825C104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000017596 | Schlumberger NVFR_806857108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000017596 | EOG Resources, Inc.FR_26875P101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000017596 | Williams Cos., Inc.FR_969457100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000017596 | Phillips 66FR_718546104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000017596 | Marathon Petroleum Corp.FR_56585A102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000017596 | ONEOK, Inc.FR_682680103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000017596 | Valero Energy Corp.FR_91913Y100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000017596 | IndustryOil, Gas & Consumable Fuels | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 90.70% |
| C000017596 | IndustryEnergy Equipment & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000017597 | Berkshire Hathaway, Inc.FR_084670702 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.40% |
| C000017597 | JPMorgan Chase & Co.FR_46625H100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| C000017597 | Visa, Inc.FR_92826C839 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000017597 | Mastercard, Inc.FR_57636Q104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000017597 | Bank of America Corp.FR_060505104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000017597 | Wells Fargo & Co.FR_949746101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000017597 | S&P Global, Inc.FR_78409V104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000017597 | Goldman Sachs Group, Inc.FR_38141G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000017597 | American Express Co.FR_025816109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000017597 | Progressive Corp.FR_743315103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000017597 | IndustryFinancial Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.80% |
| C000017597 | IndustryBanks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.20% |
| C000017597 | IndustryCapital Markets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17% |
| C000017597 | IndustryInsurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| C000017597 | IndustryConsumer Finance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000017598 | Eli Lilly & Co.FR_532457108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000017598 | UnitedHealth Group, Inc.FR_91324P102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| C000017598 | Johnson & JohnsonFR_478160104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000017598 | AbbVie, Inc.FR_00287Y109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000017598 | Merck & Co., Inc.FR_58933Y105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000017598 | Thermo Fisher Scientific, Inc.FR_883556102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000017598 | Abbott LaboratoriesFR_002824100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000017598 | Danaher Corp.FR_235851102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000017598 | Intuitive Surgical, Inc.FR_46120E602 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000017598 | Amgen, Inc.FR_031162100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000017598 | IndustryPharmaceuticals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.10% |
| C000017598 | IndustryHealth Care Providers & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| C000017598 | IndustryHealth Care Equipment & Supplies | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.40% |
| C000017598 | IndustryBiotechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.30% |
| C000017598 | IndustryLife Sciences Tools & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000017599 | General Electric Co.FR_369604301 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000017599 | Caterpillar, Inc.FR_149123101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000017599 | RTX Corp.FR_75513E101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000017599 | Uber Technologies, Inc.FR_90353T100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000017599 | Union Pacific Corp.FR_907818108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000017599 | Honeywell International, Inc.FR_438516106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000017599 | Eaton Corp. PLCFR_G29183103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000017599 | Lockheed Martin Corp.FR_539830109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000017599 | Automatic Data Processing, Inc.FR_053015103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000017599 | Deere & Co.FR_244199105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000017599 | IndustryMachinery | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.90% |
| C000017599 | IndustryAerospace & Defense | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| C000017599 | IndustryGround Transportation | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.60% |
| C000017599 | IndustryIndustrial Conglomerates | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000017599 | IndustryElectrical Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| C000017599 | IndustryProfessional Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000017599 | IndustryCommercial Services & Supplies | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000017599 | IndustryBuilding Products | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000017599 | IndustryAir Freight & Logistics | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000017599 | IndustryTrading Companies & Distributors | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000017600 | Linde PLCFR_G54950103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.50% |
| C000017600 | Sherwin-Williams Co.FR_824348106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000017600 | Freeport-McMoRan, Inc.FR_35671D857 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000017600 | Air Products & Chemicals, Inc.FR_009158106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000017600 | Ecolab, Inc.FR_278865100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000017600 | Newmont Corp.FR_651639106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000017600 | Corteva, Inc.FR_22052L104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000017600 | Dow, Inc.FR_260557103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000017600 | DuPont de Nemours, Inc.FR_26614N102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000017600 | Nucor Corp.FR_670346105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000017600 | IndustryChemicals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 63.90% |
| C000017600 | IndustryMetals & Mining | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.10% |
| C000017600 | IndustryContainers & Packaging | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.60% |
| C000017600 | IndustryConstruction Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000161049 | Prologis, Inc.FR_74340W103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000161049 | American Tower Corp.FR_03027X100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| C000161049 | Equinix, Inc.FR_29444U700 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| C000161049 | Welltower, Inc.FR_95040Q104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000161049 | Public StorageFR_74460D109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000161049 | Realty Income Corp.FR_756109104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000161049 | Simon Property Group, Inc.FR_828806109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000161049 | Crown Castle, Inc.FR_22822V101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000161049 | Digital Realty Trust, Inc.FR_253868103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000161049 | Extra Space Storage, Inc.FR_30225T102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000161049 | IndustrySpecialized REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44.60% |
| C000161049 | IndustryRetail REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000161049 | IndustryResidential REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000161049 | IndustryIndustrial REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000161049 | IndustryHealth Care REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000161049 | IndustryReal Estate Management & Development | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000161049 | IndustryOffice REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000161049 | IndustryHotel & Resort REITs | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000017601 | Apple, Inc.FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15% |
| C000017601 | Microsoft Corp.FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000017601 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.70% |
| C000017601 | Broadcom, Inc.FR_11135F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000017601 | Oracle Corp.FR_68389X105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000017601 | Advanced Micro Devices, Inc.FR_007903107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000017601 | Salesforce, Inc.FR_79466L302 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000017601 | Adobe, Inc.FR_00724F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000017601 | Accenture PLCFR_G1151C101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000017601 | Cisco Systems, Inc.FR_17275R102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000017601 | IndustrySemiconductors & Semiconductor Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 35% |
| C000017601 | IndustrySoftware | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.80% |
| C000017601 | IndustryTechnology Hardware, Storage & Peripherals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.10% |
| C000017601 | IndustryIT Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000017601 | IndustryCommunications Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000017601 | IndustryElectronic Equipment, Instruments & Components | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000017602 | NextEra Energy, Inc.FR_65339F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.10% |
| C000017602 | Southern Co.FR_842587107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| C000017602 | Duke Energy Corp.FR_26441C204 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000017602 | Constellation Energy Corp.FR_21037T109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000017602 | American Electric Power Co., Inc.FR_025537101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000017602 | SempraFR_816851109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000017602 | Dominion Energy, Inc.FR_25746U109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000017602 | Public Service Enterprise Group, Inc.FR_744573106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000017602 | PG&E Corp.FR_69331C108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000017602 | Vistra Corp.FR_92840M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000017602 | IndustryElectric Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 65.40% |
| C000017602 | IndustryMulti-Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.70% |
| C000017602 | IndustryIndependent Power and Renewable Electricity Producers | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000017602 | IndustryWater Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000017602 | IndustryGas Utilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
