Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000040729-21-000028-index-headers.html | 2021-08-02 16:37:41 | |
| 0000040729-21-000028-index.html | 2021-08-02 16:37:41 | |
| 0000040729-21-000028.txt | 2021-08-02 16:37:41 | |
 0000040729-21-000028-xbrl.zip | 864834 | 2021-08-02 16:37:41 |
| ally-20210630.htm | 9274553 | 2021-08-02 16:37:41 |
| ally-20210630.xsd | 93812 | 2021-08-02 16:37:41 |
| ally-20210630_cal.xml | 205166 | 2021-08-02 16:37:41 |
| ally-20210630_def.xml | 732321 | 2021-08-02 16:37:41 |
| ally-20210630_htm.xml | 10377285 | 2021-08-02 16:37:41 |
| ally-20210630_lab.xml | 1242665 | 2021-08-02 16:37:41 |
| ally-20210630_pre.xml | 992557 | 2021-08-02 16:37:41 |
| exhibit311ally2021063010-q.htm | 10410 | 2021-08-02 16:37:41 |
| exhibit312ally2021063010-q.htm | 10703 | 2021-08-02 16:37:41 |
| exhibit32ally2021063010-q.htm | 8504 | 2021-08-02 16:37:41 |
| FilingSummary.xml | 77681 | 2021-08-02 16:37:41 |
| Financial_Report.xlsx | 233554 | 2021-08-02 16:37:41 |
| MetaLinks.json | 1272485 | 2021-08-02 16:37:41 |
| R1.htm | 60210 | 2021-08-02 16:37:41 |
| R10.htm | 24933 | 2021-08-02 16:37:41 |
| R100.htm | 7716 | 2021-08-02 16:37:41 |
| R101.htm | 51630 | 2021-08-02 16:37:41 |
| R102.htm | 33145 | 2021-08-02 16:37:41 |
| R103.htm | 23189 | 2021-08-02 16:37:41 |
| R104.htm | 81128 | 2021-08-02 16:37:41 |
| R105.htm | 49593 | 2021-08-02 16:37:41 |
| R106.htm | 19020 | 2021-08-02 16:37:41 |
| R107.htm | 14865 | 2021-08-02 16:37:41 |
| R108.htm | 153353 | 2021-08-02 16:37:41 |
| R109.htm | 93897 | 2021-08-02 16:37:41 |
| R11.htm | 24902 | 2021-08-02 16:37:41 |
| R110.htm | 82126 | 2021-08-02 16:37:41 |
| R111.htm | 39534 | 2021-08-02 16:37:41 |
| R112.htm | 54867 | 2021-08-02 16:37:41 |
| R113.htm | 58619 | 2021-08-02 16:37:41 |
| R114.htm | 6349 | 2021-08-02 16:37:41 |
| R115.htm | 38851 | 2021-08-02 16:37:41 |
| R12.htm | 40475 | 2021-08-02 16:37:41 |
| R13.htm | 340765 | 2021-08-02 16:37:41 |
| R14.htm | 838951 | 2021-08-02 16:37:41 |
| R15.htm | 214040 | 2021-08-02 16:37:41 |
| R16.htm | 58513 | 2021-08-02 16:37:41 |
| R17.htm | 48783 | 2021-08-02 16:37:41 |
| R18.htm | 14826 | 2021-08-02 16:37:41 |
| R19.htm | 113194 | 2021-08-02 16:37:41 |
| R2.htm | 130811 | 2021-08-02 16:37:41 |
| R20.htm | 23529 | 2021-08-02 16:37:41 |
| R21.htm | 25169 | 2021-08-02 16:37:41 |
| R22.htm | 153100 | 2021-08-02 16:37:41 |
| R23.htm | 40302 | 2021-08-02 16:37:41 |
| R24.htm | 97370 | 2021-08-02 16:37:41 |
| R25.htm | 394356 | 2021-08-02 16:37:41 |
| R26.htm | 9632 | 2021-08-02 16:37:41 |
| R27.htm | 465007 | 2021-08-02 16:37:41 |
| R28.htm | 73764 | 2021-08-02 16:37:41 |
| R29.htm | 147537 | 2021-08-02 16:37:41 |
| R3.htm | 102455 | 2021-08-02 16:37:41 |
| R30.htm | 19825 | 2021-08-02 16:37:41 |
| R31.htm | 6363 | 2021-08-02 16:37:41 |
| R32.htm | 19629 | 2021-08-02 16:37:41 |
| R33.htm | 155202 | 2021-08-02 16:37:41 |
| R34.htm | 24814 | 2021-08-02 16:37:41 |
| R35.htm | 25169 | 2021-08-02 16:37:41 |
| R36.htm | 40938 | 2021-08-02 16:37:41 |
| R37.htm | 349830 | 2021-08-02 16:37:41 |
| R38.htm | 852964 | 2021-08-02 16:37:41 |
| R39.htm | 73471 | 2021-08-02 16:37:41 |
| R4.htm | 21908 | 2021-08-02 16:37:41 |
| R40.htm | 58150 | 2021-08-02 16:37:41 |
| R41.htm | 50940 | 2021-08-02 16:37:41 |
| R42.htm | 12848 | 2021-08-02 16:37:41 |
| R43.htm | 118899 | 2021-08-02 16:37:41 |
| R44.htm | 23143 | 2021-08-02 16:37:41 |
| R45.htm | 22298 | 2021-08-02 16:37:41 |
| R46.htm | 154328 | 2021-08-02 16:37:41 |
| R47.htm | 39850 | 2021-08-02 16:37:41 |
| R48.htm | 70395 | 2021-08-02 16:37:41 |
| R49.htm | 399426 | 2021-08-02 16:37:41 |
| R5.htm | 74271 | 2021-08-02 16:37:41 |
| R50.htm | 456855 | 2021-08-02 16:37:41 |
| R51.htm | 140564 | 2021-08-02 16:37:41 |
| R52.htm | 137164 | 2021-08-02 16:37:41 |
| R53.htm | 139024 | 2021-08-02 16:37:41 |
| R54.htm | 15876 | 2021-08-02 16:37:41 |
| R55.htm | 27002 | 2021-08-02 16:37:41 |
| R56.htm | 32513 | 2021-08-02 16:37:41 |
| R57.htm | 76936 | 2021-08-02 16:37:41 |
| R58.htm | 133860 | 2021-08-02 16:37:41 |
| R59.htm | 11047 | 2021-08-02 16:37:41 |
| R6.htm | 5733 | 2021-08-02 16:37:41 |
| R60.htm | 14414 | 2021-08-02 16:37:41 |
| R61.htm | 10575 | 2021-08-02 16:37:41 |
| R62.htm | 41212 | 2021-08-02 16:37:41 |
| R63.htm | 42675 | 2021-08-02 16:37:41 |
| R64.htm | 55335 | 2021-08-02 16:37:41 |
| R65.htm | 8870 | 2021-08-02 16:37:41 |
| R66.htm | 13755 | 2021-08-02 16:37:41 |
| R67.htm | 43129 | 2021-08-02 16:37:41 |
| R68.htm | 172371 | 2021-08-02 16:37:41 |
| R69.htm | 100921 | 2021-08-02 16:37:41 |
| R7.htm | 135950 | 2021-08-02 16:37:41 |
| R70.htm | 42113 | 2021-08-02 16:37:41 |
| R71.htm | 46047 | 2021-08-02 16:37:41 |
| R72.htm | 20474 | 2021-08-02 16:37:41 |
| R73.htm | 37804 | 2021-08-02 16:37:41 |
| R74.htm | 20944 | 2021-08-02 16:37:41 |
| R75.htm | 9494 | 2021-08-02 16:37:41 |
| R76.htm | 18565 | 2021-08-02 16:37:41 |
| R77.htm | 16611 | 2021-08-02 16:37:41 |
| R78.htm | 12664 | 2021-08-02 16:37:41 |
| R79.htm | 30518 | 2021-08-02 16:37:41 |
| R8.htm | 13036 | 2021-08-02 16:37:41 |
| R80.htm | 11282 | 2021-08-02 16:37:41 |
| R81.htm | 34193 | 2021-08-02 16:37:41 |
| R82.htm | 13876 | 2021-08-02 16:37:41 |
| R83.htm | 61963 | 2021-08-02 16:37:41 |
| R84.htm | 25264 | 2021-08-02 16:37:41 |
| R85.htm | 15888 | 2021-08-02 16:37:41 |
| R86.htm | 11286 | 2021-08-02 16:37:41 |
| R87.htm | 21348 | 2021-08-02 16:37:41 |
| R88.htm | 53526 | 2021-08-02 16:37:41 |
| R89.htm | 27044 | 2021-08-02 16:37:41 |
| R9.htm | 160341 | 2021-08-02 16:37:41 |
| R90.htm | 41605 | 2021-08-02 16:37:41 |
| R91.htm | 20485 | 2021-08-02 16:37:41 |
| R92.htm | 31561 | 2021-08-02 16:37:41 |
| R93.htm | 22892 | 2021-08-02 16:37:41 |
| R94.htm | 36667 | 2021-08-02 16:37:41 |
| R95.htm | 26290 | 2021-08-02 16:37:41 |
| R96.htm | 52892 | 2021-08-02 16:37:41 |
| R97.htm | 54050 | 2021-08-02 16:37:41 |
| R98.htm | 63060 | 2021-08-02 16:37:41 |
| R99.htm | 42429 | 2021-08-02 16:37:41 |
| R9999.htm | 12009 | 2021-08-02 16:37:41 |
| report.css | 2768 | 2021-08-02 16:37:41 |
| Show.js | 1086 | 2021-08-02 16:37:41 |