Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000093751-26-000124-index-headers.html | 2026-02-19 16:31:31 | |
| 0000093751-26-000124-index.html | 2026-02-19 16:31:31 | |
| 0000093751-26-000124.txt | 2026-02-19 16:31:31 | |
 0000093751-26-000124-xbrl.zip | 939263 | 2026-02-19 16:31:31 |
| exhibit21-december312025.htm | 13535 | 2026-02-19 16:31:31 |
| exhibit23consentletterofey.htm | 14178 | 2026-02-19 16:31:31 |
| exhibit311-december312025.htm | 10758 | 2026-02-19 16:31:31 |
| exhibit312-december312025.htm | 10442 | 2026-02-19 16:31:31 |
| exhibit32-december312025.htm | 8100 | 2026-02-19 16:31:31 |
| FilingSummary.xml | 88755 | 2026-02-19 16:31:31 |
| MetaLinks.json | 2075293 | 2026-02-19 16:31:31 |
| R1.htm | 70586 | 2026-02-19 16:31:31 |
| R10.htm | 122319 | 2026-02-19 16:31:31 |
| R100.htm | 64390 | 2026-02-19 16:31:31 |
| R101.htm | 51325 | 2026-02-19 16:31:31 |
| R102.htm | 7327 | 2026-02-19 16:31:31 |
| R103.htm | 9742 | 2026-02-19 16:31:31 |
| R104.htm | 9789 | 2026-02-19 16:31:31 |
| R105.htm | 23255 | 2026-02-19 16:31:31 |
| R106.htm | 24486 | 2026-02-19 16:31:31 |
| R107.htm | 44097 | 2026-02-19 16:31:31 |
| R108.htm | 60925 | 2026-02-19 16:31:31 |
| R109.htm | 105092 | 2026-02-19 16:31:31 |
| R11.htm | 48127 | 2026-02-19 16:31:31 |
| R110.htm | 39343 | 2026-02-19 16:31:31 |
| R111.htm | 18988 | 2026-02-19 16:31:31 |
| R112.htm | 41946 | 2026-02-19 16:31:31 |
| R113.htm | 50498 | 2026-02-19 16:31:31 |
| R114.htm | 90624 | 2026-02-19 16:31:31 |
| R115.htm | 44747 | 2026-02-19 16:31:31 |
| R116.htm | 60920 | 2026-02-19 16:31:31 |
| R117.htm | 25152 | 2026-02-19 16:31:31 |
| R118.htm | 23631 | 2026-02-19 16:31:31 |
| R119.htm | 19225 | 2026-02-19 16:31:31 |
| R12.htm | 383559 | 2026-02-19 16:31:31 |
| R120.htm | 25745 | 2026-02-19 16:31:31 |
| R121.htm | 27334 | 2026-02-19 16:31:31 |
| R122.htm | 33497 | 2026-02-19 16:31:31 |
| R123.htm | 65837 | 2026-02-19 16:31:31 |
| R124.htm | 13207 | 2026-02-19 16:31:31 |
| R125.htm | 24514 | 2026-02-19 16:31:31 |
| R126.htm | 15740 | 2026-02-19 16:31:31 |
| R127.htm | 20589 | 2026-02-19 16:31:31 |
| R128.htm | 32130 | 2026-02-19 16:31:31 |
| R129.htm | 60652 | 2026-02-19 16:31:31 |
| R13.htm | 454720 | 2026-02-19 16:31:31 |
| R130.htm | 14057 | 2026-02-19 16:31:31 |
| R131.htm | 36120 | 2026-02-19 16:31:31 |
| R132.htm | 24294 | 2026-02-19 16:31:31 |
| R133.htm | 14395 | 2026-02-19 16:31:31 |
| R134.htm | 31399 | 2026-02-19 16:31:31 |
| R135.htm | 61375 | 2026-02-19 16:31:31 |
| R136.htm | 11493 | 2026-02-19 16:31:31 |
| R137.htm | 83684 | 2026-02-19 16:31:31 |
| R138.htm | 53685 | 2026-02-19 16:31:31 |
| R139.htm | 20336 | 2026-02-19 16:31:31 |
| R14.htm | 323671 | 2026-02-19 16:31:31 |
| R140.htm | 102171 | 2026-02-19 16:31:31 |
| R141.htm | 25050 | 2026-02-19 16:31:31 |
| R142.htm | 16624 | 2026-02-19 16:31:31 |
| R143.htm | 60065 | 2026-02-19 16:31:31 |
| R144.htm | 76306 | 2026-02-19 16:31:31 |
| R145.htm | 53165 | 2026-02-19 16:31:31 |
| R15.htm | 82146 | 2026-02-19 16:31:31 |
| R16.htm | 25746 | 2026-02-19 16:31:31 |
| R17.htm | 6368 | 2026-02-19 16:31:31 |
| R18.htm | 37434 | 2026-02-19 16:31:31 |
| R19.htm | 136747 | 2026-02-19 16:31:31 |
| R2.htm | 7786 | 2026-02-19 16:31:31 |
| R20.htm | 190726 | 2026-02-19 16:31:31 |
| R21.htm | 193084 | 2026-02-19 16:31:31 |
| R22.htm | 27045 | 2026-02-19 16:31:31 |
| R23.htm | 19912 | 2026-02-19 16:31:31 |
| R24.htm | 26058 | 2026-02-19 16:31:31 |
| R25.htm | 174264 | 2026-02-19 16:31:31 |
| R26.htm | 130933 | 2026-02-19 16:31:31 |
| R27.htm | 44065 | 2026-02-19 16:31:31 |
| R28.htm | 52190 | 2026-02-19 16:31:31 |
| R29.htm | 9264 | 2026-02-19 16:31:31 |
| R3.htm | 123141 | 2026-02-19 16:31:31 |
| R30.htm | 111081 | 2026-02-19 16:31:31 |
| R31.htm | 48662 | 2026-02-19 16:31:31 |
| R32.htm | 136945 | 2026-02-19 16:31:31 |
| R33.htm | 35069 | 2026-02-19 16:31:31 |
| R34.htm | 195509 | 2026-02-19 16:31:31 |
| R35.htm | 233462 | 2026-02-19 16:31:31 |
| R36.htm | 233426 | 2026-02-19 16:31:31 |
| R37.htm | 89437 | 2026-02-19 16:31:31 |
| R38.htm | 26937 | 2026-02-19 16:31:31 |
| R39.htm | 4371 | 2026-02-19 16:31:31 |
| R4.htm | 38383 | 2026-02-19 16:31:31 |
| R40.htm | 42515 | 2026-02-19 16:31:31 |
| R41.htm | 136378 | 2026-02-19 16:31:31 |
| R42.htm | 31187 | 2026-02-19 16:31:31 |
| R43.htm | 307175 | 2026-02-19 16:31:31 |
| R44.htm | 445894 | 2026-02-19 16:31:31 |
| R45.htm | 305253 | 2026-02-19 16:31:31 |
| R46.htm | 82416 | 2026-02-19 16:31:31 |
| R47.htm | 25792 | 2026-02-19 16:31:31 |
| R48.htm | 35934 | 2026-02-19 16:31:31 |
| R49.htm | 139384 | 2026-02-19 16:31:31 |
| R5.htm | 11661 | 2026-02-19 16:31:31 |
| R50.htm | 201319 | 2026-02-19 16:31:31 |
| R51.htm | 196352 | 2026-02-19 16:31:31 |
| R52.htm | 21276 | 2026-02-19 16:31:31 |
| R53.htm | 19464 | 2026-02-19 16:31:31 |
| R54.htm | 178793 | 2026-02-19 16:31:31 |
| R55.htm | 126746 | 2026-02-19 16:31:31 |
| R56.htm | 40471 | 2026-02-19 16:31:31 |
| R57.htm | 43577 | 2026-02-19 16:31:31 |
| R58.htm | 75678 | 2026-02-19 16:31:31 |
| R59.htm | 49699 | 2026-02-19 16:31:31 |
| R6.htm | 132855 | 2026-02-19 16:31:31 |
| R60.htm | 138813 | 2026-02-19 16:31:31 |
| R61.htm | 33126 | 2026-02-19 16:31:31 |
| R62.htm | 183227 | 2026-02-19 16:31:31 |
| R63.htm | 217651 | 2026-02-19 16:31:31 |
| R64.htm | 217640 | 2026-02-19 16:31:31 |
| R65.htm | 93929 | 2026-02-19 16:31:31 |
| R66.htm | 6972 | 2026-02-19 16:31:31 |
| R67.htm | 6308 | 2026-02-19 16:31:31 |
| R68.htm | 238506 | 2026-02-19 16:31:31 |
| R69.htm | 79429 | 2026-02-19 16:31:31 |
| R7.htm | 42784 | 2026-02-19 16:31:31 |
| R70.htm | 109080 | 2026-02-19 16:31:31 |
| R71.htm | 22470 | 2026-02-19 16:31:31 |
| R72.htm | 76632 | 2026-02-19 16:31:31 |
| R73.htm | 164362 | 2026-02-19 16:31:31 |
| R74.htm | 44875 | 2026-02-19 16:31:31 |
| R75.htm | 62682 | 2026-02-19 16:31:31 |
| R76.htm | 44006 | 2026-02-19 16:31:31 |
| R77.htm | 90556 | 2026-02-19 16:31:31 |
| R78.htm | 51854 | 2026-02-19 16:31:31 |
| R79.htm | 31761 | 2026-02-19 16:31:31 |
| R8.htm | 76590 | 2026-02-19 16:31:31 |
| R80.htm | 19575 | 2026-02-19 16:31:31 |
| R81.htm | 20777 | 2026-02-19 16:31:31 |
| R82.htm | 31838 | 2026-02-19 16:31:31 |
| R83.htm | 15656 | 2026-02-19 16:31:31 |
| R84.htm | 53276 | 2026-02-19 16:31:31 |
| R85.htm | 14602 | 2026-02-19 16:31:31 |
| R86.htm | 17974 | 2026-02-19 16:31:31 |
| R87.htm | 16920 | 2026-02-19 16:31:31 |
| R88.htm | 13630 | 2026-02-19 16:31:31 |
| R89.htm | 128121 | 2026-02-19 16:31:31 |
| R9.htm | 4575 | 2026-02-19 16:31:31 |
| R90.htm | 6500 | 2026-02-19 16:31:31 |
| R91.htm | 32715 | 2026-02-19 16:31:31 |
| R92.htm | 34136 | 2026-02-19 16:31:31 |
| R93.htm | 31145 | 2026-02-19 16:31:31 |
| R94.htm | 22451 | 2026-02-19 16:31:31 |
| R95.htm | 21857 | 2026-02-19 16:31:31 |
| R96.htm | 23395 | 2026-02-19 16:31:31 |
| R97.htm | 31039 | 2026-02-19 16:31:31 |
| R98.htm | 6484 | 2026-02-19 16:31:31 |
| R99.htm | 63512 | 2026-02-19 16:31:31 |
| report.css | 2768 | 2026-02-19 16:31:31 |
| securitiestradingpolicyf.htm | 23603 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf001.jpg | 196920 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf002.jpg | 173747 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf003.jpg | 184698 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf004.jpg | 177508 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf005.jpg | 163087 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf006.jpg | 198789 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf007.jpg | 123183 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf008.jpg | 106811 | 2026-02-19 16:31:31 |
 securitiestradingpolicyf009.jpg | 99497 | 2026-02-19 16:31:31 |
| Show.js | 1086 | 2026-02-19 16:31:31 |
| stt-20251231.htm | 7694408 | 2026-02-19 16:31:31 |
| stt-20251231.xsd | 151608 | 2026-02-19 16:31:31 |
| stt-20251231_cal.xml | 278743 | 2026-02-19 16:31:31 |
| stt-20251231_def.xml | 856103 | 2026-02-19 16:31:31 |
 stt-20251231_g1.jpg | 95081 | 2026-02-19 16:31:31 |
| stt-20251231_htm.xml | 8138389 | 2026-02-19 16:31:31 |
| stt-20251231_lab.xml | 1602388 | 2026-02-19 16:31:31 |
| stt-20251231_pre.xml | 1256304 | 2026-02-19 16:31:31 |