Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000040729-21-000011-index-headers.html | 2021-05-03 16:02:55 | |
| 0000040729-21-000011-index.html | 2021-05-03 16:02:55 | |
| 0000040729-21-000011.txt | 2021-05-03 16:02:55 | |
 0000040729-21-000011-xbrl.zip | 744767 | 2021-05-03 16:02:55 |
| ally-20210331.htm | 6971141 | 2021-05-03 16:02:55 |
| ally-20210331.xsd | 93070 | 2021-05-03 16:02:55 |
| ally-20210331_cal.xml | 203940 | 2021-05-03 16:02:55 |
| ally-20210331_def.xml | 741508 | 2021-05-03 16:02:55 |
| ally-20210331_htm.xml | 7791132 | 2021-05-03 16:02:55 |
| ally-20210331_lab.xml | 1248451 | 2021-05-03 16:02:55 |
| ally-20210331_pre.xml | 970583 | 2021-05-03 16:02:55 |
| exhibit311ally2021033110-q.htm | 10399 | 2021-05-03 16:02:55 |
| exhibit312ally2021033110-q.htm | 10692 | 2021-05-03 16:02:55 |
| exhibit32ally2021033110-q.htm | 8491 | 2021-05-03 16:02:55 |
| FilingSummary.xml | 74503 | 2021-05-03 16:02:55 |
| Financial_Report.xlsx | 211796 | 2021-05-03 16:02:55 |
| MetaLinks.json | 1248677 | 2021-05-03 16:02:55 |
| R1.htm | 60231 | 2021-05-03 16:02:55 |
| R10.htm | 25729 | 2021-05-03 16:02:55 |
| R100.htm | 42476 | 2021-05-03 16:02:55 |
| R101.htm | 18230 | 2021-05-03 16:02:55 |
| R102.htm | 6462 | 2021-05-03 16:02:55 |
| R103.htm | 140936 | 2021-05-03 16:02:55 |
| R104.htm | 87811 | 2021-05-03 16:02:55 |
| R105.htm | 70035 | 2021-05-03 16:02:55 |
| R106.htm | 39895 | 2021-05-03 16:02:55 |
| R107.htm | 77625 | 2021-05-03 16:02:55 |
| R108.htm | 54176 | 2021-05-03 16:02:55 |
| R109.htm | 6349 | 2021-05-03 16:02:55 |
| R11.htm | 328857 | 2021-05-03 16:02:55 |
| R110.htm | 36961 | 2021-05-03 16:02:55 |
| R12.htm | 666338 | 2021-05-03 16:02:55 |
| R13.htm | 62347 | 2021-05-03 16:02:55 |
| R14.htm | 57188 | 2021-05-03 16:02:55 |
| R15.htm | 48389 | 2021-05-03 16:02:55 |
| R16.htm | 14832 | 2021-05-03 16:02:55 |
| R17.htm | 112492 | 2021-05-03 16:02:55 |
| R18.htm | 22781 | 2021-05-03 16:02:55 |
| R19.htm | 79106 | 2021-05-03 16:02:55 |
| R2.htm | 120887 | 2021-05-03 16:02:55 |
| R20.htm | 26624 | 2021-05-03 16:02:55 |
| R21.htm | 92780 | 2021-05-03 16:02:55 |
| R22.htm | 262269 | 2021-05-03 16:02:55 |
| R23.htm | 7829 | 2021-05-03 16:02:55 |
| R24.htm | 378554 | 2021-05-03 16:02:55 |
| R25.htm | 76560 | 2021-05-03 16:02:55 |
| R26.htm | 81604 | 2021-05-03 16:02:55 |
| R27.htm | 19667 | 2021-05-03 16:02:55 |
| R28.htm | 7181 | 2021-05-03 16:02:55 |
| R29.htm | 15243 | 2021-05-03 16:02:55 |
| R3.htm | 115595 | 2021-05-03 16:02:55 |
| R30.htm | 6745 | 2021-05-03 16:02:55 |
| R31.htm | 80519 | 2021-05-03 16:02:55 |
| R32.htm | 17790 | 2021-05-03 16:02:55 |
| R33.htm | 24689 | 2021-05-03 16:02:55 |
| R34.htm | 26171 | 2021-05-03 16:02:55 |
| R35.htm | 338034 | 2021-05-03 16:02:55 |
| R36.htm | 679542 | 2021-05-03 16:02:55 |
| R37.htm | 64299 | 2021-05-03 16:02:55 |
| R38.htm | 56843 | 2021-05-03 16:02:55 |
| R39.htm | 50535 | 2021-05-03 16:02:55 |
| R4.htm | 42743 | 2021-05-03 16:02:55 |
| R40.htm | 12841 | 2021-05-03 16:02:55 |
| R41.htm | 116098 | 2021-05-03 16:02:55 |
| R42.htm | 22382 | 2021-05-03 16:02:55 |
| R43.htm | 80332 | 2021-05-03 16:02:55 |
| R44.htm | 26168 | 2021-05-03 16:02:55 |
| R45.htm | 68526 | 2021-05-03 16:02:55 |
| R46.htm | 267238 | 2021-05-03 16:02:55 |
| R47.htm | 370204 | 2021-05-03 16:02:55 |
| R48.htm | 146132 | 2021-05-03 16:02:55 |
| R49.htm | 71397 | 2021-05-03 16:02:55 |
| R5.htm | 122277 | 2021-05-03 16:02:55 |
| R50.htm | 115677 | 2021-05-03 16:02:55 |
| R51.htm | 15171 | 2021-05-03 16:02:55 |
| R52.htm | 25686 | 2021-05-03 16:02:55 |
| R53.htm | 29333 | 2021-05-03 16:02:55 |
| R54.htm | 69941 | 2021-05-03 16:02:55 |
| R55.htm | 123466 | 2021-05-03 16:02:55 |
| R56.htm | 10466 | 2021-05-03 16:02:55 |
| R57.htm | 13449 | 2021-05-03 16:02:55 |
| R58.htm | 10575 | 2021-05-03 16:02:55 |
| R59.htm | 39666 | 2021-05-03 16:02:55 |
| R6.htm | 13317 | 2021-05-03 16:02:55 |
| R60.htm | 39317 | 2021-05-03 16:02:55 |
| R61.htm | 60707 | 2021-05-03 16:02:55 |
| R62.htm | 8337 | 2021-05-03 16:02:55 |
| R63.htm | 10583 | 2021-05-03 16:02:55 |
| R64.htm | 35544 | 2021-05-03 16:02:55 |
| R65.htm | 149654 | 2021-05-03 16:02:55 |
| R66.htm | 94633 | 2021-05-03 16:02:55 |
| R67.htm | 38655 | 2021-05-03 16:02:55 |
| R68.htm | 38398 | 2021-05-03 16:02:55 |
| R69.htm | 16306 | 2021-05-03 16:02:55 |
| R7.htm | 85307 | 2021-05-03 16:02:55 |
| R70.htm | 28166 | 2021-05-03 16:02:55 |
| R71.htm | 23347 | 2021-05-03 16:02:55 |
| R72.htm | 13335 | 2021-05-03 16:02:55 |
| R73.htm | 18668 | 2021-05-03 16:02:55 |
| R74.htm | 16613 | 2021-05-03 16:02:55 |
| R75.htm | 12084 | 2021-05-03 16:02:55 |
| R76.htm | 28855 | 2021-05-03 16:02:55 |
| R77.htm | 36446 | 2021-05-03 16:02:55 |
| R78.htm | 11489 | 2021-05-03 16:02:55 |
| R79.htm | 7960 | 2021-05-03 16:02:55 |
| R8.htm | 17922 | 2021-05-03 16:02:55 |
| R80.htm | 60867 | 2021-05-03 16:02:55 |
| R81.htm | 21399 | 2021-05-03 16:02:55 |
| R82.htm | 15955 | 2021-05-03 16:02:55 |
| R83.htm | 11286 | 2021-05-03 16:02:55 |
| R84.htm | 21355 | 2021-05-03 16:02:55 |
| R85.htm | 56121 | 2021-05-03 16:02:55 |
| R86.htm | 27164 | 2021-05-03 16:02:55 |
| R87.htm | 24905 | 2021-05-03 16:02:55 |
| R88.htm | 20475 | 2021-05-03 16:02:55 |
| R89.htm | 29336 | 2021-05-03 16:02:55 |
| R9.htm | 25077 | 2021-05-03 16:02:55 |
| R90.htm | 40042 | 2021-05-03 16:02:55 |
| R91.htm | 48916 | 2021-05-03 16:02:55 |
| R92.htm | 49413 | 2021-05-03 16:02:55 |
| R93.htm | 63098 | 2021-05-03 16:02:55 |
| R94.htm | 27830 | 2021-05-03 16:02:55 |
| R95.htm | 7715 | 2021-05-03 16:02:55 |
| R96.htm | 48759 | 2021-05-03 16:02:55 |
| R97.htm | 33150 | 2021-05-03 16:02:55 |
| R98.htm | 19668 | 2021-05-03 16:02:55 |
| R99.htm | 66181 | 2021-05-03 16:02:55 |
| report.css | 2768 | 2021-05-03 16:02:55 |
| Show.js | 1086 | 2021-05-03 16:02:55 |