Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000798354-21-000008-index-headers.html | 2021-04-28 07:24:27 | |
| 0000798354-21-000008-index.html | 2021-04-28 07:24:27 | |
| 0000798354-21-000008.txt | 2021-04-28 07:24:27 | |
 0000798354-21-000008-xbrl.zip | 325169 | 2021-04-28 07:24:27 |
| ex31103312021.htm | 12342 | 2021-04-28 07:24:27 |
| ex31203312021.htm | 11291 | 2021-04-28 07:24:27 |
| ex32103312021.htm | 7567 | 2021-04-28 07:24:27 |
| FilingSummary.xml | 50940 | 2021-04-28 07:24:27 |
| Financial_Report.xlsx | 116092 | 2021-04-28 07:24:27 |
| fisv-20210331.htm | 1715321 | 2021-04-28 07:24:27 |
| fisv-20210331.xsd | 60732 | 2021-04-28 07:24:27 |
| fisv-20210331_cal.xml | 100153 | 2021-04-28 07:24:27 |
| fisv-20210331_def.xml | 401798 | 2021-04-28 07:24:27 |
| fisv-20210331_htm.xml | 1699194 | 2021-04-28 07:24:27 |
| fisv-20210331_lab.xml | 767376 | 2021-04-28 07:24:27 |
| fisv-20210331_pre.xml | 528623 | 2021-04-28 07:24:27 |
| MetaLinks.json | 791320 | 2021-04-28 07:24:27 |
| R1.htm | 67206 | 2021-04-28 07:24:27 |
| R10.htm | 16466 | 2021-04-28 07:24:27 |
| R11.htm | 71011 | 2021-04-28 07:24:27 |
| R12.htm | 34999 | 2021-04-28 07:24:27 |
| R13.htm | 34469 | 2021-04-28 07:24:27 |
| R14.htm | 21610 | 2021-04-28 07:24:27 |
| R15.htm | 30419 | 2021-04-28 07:24:27 |
| R16.htm | 15095 | 2021-04-28 07:24:27 |
| R17.htm | 38458 | 2021-04-28 07:24:27 |
| R18.htm | 13878 | 2021-04-28 07:24:27 |
| R19.htm | 70586 | 2021-04-28 07:24:27 |
| R2.htm | 76219 | 2021-04-28 07:24:27 |
| R20.htm | 49200 | 2021-04-28 07:24:27 |
| R21.htm | 32219 | 2021-04-28 07:24:27 |
| R22.htm | 17816 | 2021-04-28 07:24:27 |
| R23.htm | 14248 | 2021-04-28 07:24:27 |
| R24.htm | 12617 | 2021-04-28 07:24:27 |
| R25.htm | 13921 | 2021-04-28 07:24:27 |
| R26.htm | 8909 | 2021-04-28 07:24:27 |
| R27.htm | 9254 | 2021-04-28 07:24:27 |
| R28.htm | 48623 | 2021-04-28 07:24:27 |
| R29.htm | 57023 | 2021-04-28 07:24:27 |
| R3.htm | 5993 | 2021-04-28 07:24:27 |
| R30.htm | 11645 | 2021-04-28 07:24:27 |
| R31.htm | 68348 | 2021-04-28 07:24:27 |
| R32.htm | 25694 | 2021-04-28 07:24:27 |
| R33.htm | 36409 | 2021-04-28 07:24:27 |
| R34.htm | 16899 | 2021-04-28 07:24:27 |
| R35.htm | 25255 | 2021-04-28 07:24:27 |
| R36.htm | 15246 | 2021-04-28 07:24:27 |
| R37.htm | 37883 | 2021-04-28 07:24:27 |
| R38.htm | 12042 | 2021-04-28 07:24:27 |
| R39.htm | 70077 | 2021-04-28 07:24:27 |
| R4.htm | 42835 | 2021-04-28 07:24:27 |
| R40.htm | 36629 | 2021-04-28 07:24:27 |
| R41.htm | 34158 | 2021-04-28 07:24:27 |
| R42.htm | 13333 | 2021-04-28 07:24:27 |
| R43.htm | 10532 | 2021-04-28 07:24:27 |
| R44.htm | 11625 | 2021-04-28 07:24:27 |
| R45.htm | 13415 | 2021-04-28 07:24:27 |
| R46.htm | 40549 | 2021-04-28 07:24:27 |
| R47.htm | 25204 | 2021-04-28 07:24:27 |
| R48.htm | 9760 | 2021-04-28 07:24:27 |
| R49.htm | 21380 | 2021-04-28 07:24:27 |
| R5.htm | 11378 | 2021-04-28 07:24:27 |
| R50.htm | 67722 | 2021-04-28 07:24:27 |
| R51.htm | 7541 | 2021-04-28 07:24:27 |
| R52.htm | 4530 | 2021-04-28 07:24:27 |
| R53.htm | 18660 | 2021-04-28 07:24:27 |
| R54.htm | 86596 | 2021-04-28 07:24:27 |
| R55.htm | 24011 | 2021-04-28 07:24:27 |
| R56.htm | 24693 | 2021-04-28 07:24:27 |
| R57.htm | 23125 | 2021-04-28 07:24:27 |
| R58.htm | 5346 | 2021-04-28 07:24:27 |
| R59.htm | 4107 | 2021-04-28 07:24:27 |
| R6.htm | 111751 | 2021-04-28 07:24:27 |
| R60.htm | 16028 | 2021-04-28 07:24:27 |
| R61.htm | 36575 | 2021-04-28 07:24:27 |
| R62.htm | 12405 | 2021-04-28 07:24:27 |
| R63.htm | 13277 | 2021-04-28 07:24:27 |
| R64.htm | 18717 | 2021-04-28 07:24:27 |
| R65.htm | 71864 | 2021-04-28 07:24:27 |
| R66.htm | 11337 | 2021-04-28 07:24:27 |
| R67.htm | 11200 | 2021-04-28 07:24:27 |
| R68.htm | 10015 | 2021-04-28 07:24:27 |
| R69.htm | 82309 | 2021-04-28 07:24:27 |
| R7.htm | 15060 | 2021-04-28 07:24:27 |
| R70.htm | 37057 | 2021-04-28 07:24:27 |
| R71.htm | 24437 | 2021-04-28 07:24:27 |
| R72.htm | 15315 | 2021-04-28 07:24:27 |
| R73.htm | 39087 | 2021-04-28 07:24:27 |
| R74.htm | 31197 | 2021-04-28 07:24:27 |
| R75.htm | 21108 | 2021-04-28 07:24:27 |
| R76.htm | 11613 | 2021-04-28 07:24:27 |
| R77.htm | 8437 | 2021-04-28 07:24:27 |
| R78.htm | 20880 | 2021-04-28 07:24:27 |
| R79.htm | 9631 | 2021-04-28 07:24:27 |
| R8.htm | 94538 | 2021-04-28 07:24:27 |
| R80.htm | 4936 | 2021-04-28 07:24:27 |
| R81.htm | 15095 | 2021-04-28 07:24:27 |
| R82.htm | 17679 | 2021-04-28 07:24:27 |
| R83.htm | 17922 | 2021-04-28 07:24:27 |
| R84.htm | 43399 | 2021-04-28 07:24:27 |
| R9.htm | 29630 | 2021-04-28 07:24:27 |
| report.css | 2767 | 2021-04-28 07:24:27 |
| Show.js | 1085 | 2021-04-28 07:24:27 |