Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000062709-21-000008-index-headers.html | 2021-02-17 17:07:13 | |
| 0000062709-21-000008-index.html | 2021-02-17 17:07:13 | |
| 0000062709-21-000008.txt | 2021-02-17 17:07:13 | |
 0000062709-21-000008-xbrl.zip | 746819 | 2021-02-17 17:07:13 |
| FilingSummary.xml | 66099 | 2021-02-17 17:07:13 |
| Financial_Report.xlsx | 200353 | 2021-02-17 17:07:13 |
| MetaLinks.json | 1295557 | 2021-02-17 17:07:13 |
| mmc-20201231.htm | 4672460 | 2021-02-17 17:07:13 |
| mmc-20201231.xsd | 103705 | 2021-02-17 17:07:13 |
| mmc-20201231_cal.xml | 211425 | 2021-02-17 17:07:13 |
| mmc-20201231_def.xml | 697082 | 2021-02-17 17:07:13 |
 mmc-20201231_g1.jpg | 11393 | 2021-02-17 17:07:13 |
| mmc-20201231_htm.xml | 5013291 | 2021-02-17 17:07:13 |
| mmc-20201231_lab.xml | 1413869 | 2021-02-17 17:07:13 |
| mmc-20201231_pre.xml | 986545 | 2021-02-17 17:07:13 |
| mmc12312020ex_1062.htm | 11454 | 2021-02-17 17:07:13 |
| mmc12312020ex_211.htm | 604567 | 2021-02-17 17:07:13 |
| mmc12312020ex_231.htm | 2886 | 2021-02-17 17:07:13 |
| mmc12312020ex_311.htm | 9168 | 2021-02-17 17:07:13 |
| mmc12312020ex_312.htm | 9165 | 2021-02-17 17:07:13 |
| mmc12312020ex_321.htm | 7555 | 2021-02-17 17:07:13 |
| R1.htm | 67085 | 2021-02-17 17:07:13 |
| R10.htm | 68774 | 2021-02-17 17:07:13 |
| R100.htm | 72895 | 2021-02-17 17:07:13 |
| R101.htm | 72835 | 2021-02-17 17:07:13 |
| R102.htm | 54718 | 2021-02-17 17:07:13 |
| R11.htm | 39695 | 2021-02-17 17:07:13 |
| R12.htm | 97345 | 2021-02-17 17:07:13 |
| R13.htm | 57145 | 2021-02-17 17:07:13 |
| R14.htm | 41422 | 2021-02-17 17:07:13 |
| R15.htm | 108735 | 2021-02-17 17:07:13 |
| R16.htm | 568136 | 2021-02-17 17:07:13 |
| R17.htm | 63436 | 2021-02-17 17:07:13 |
| R18.htm | 108674 | 2021-02-17 17:07:13 |
| R19.htm | 11149 | 2021-02-17 17:07:13 |
| R2.htm | 84814 | 2021-02-17 17:07:13 |
| R20.htm | 35573 | 2021-02-17 17:07:13 |
| R21.htm | 58757 | 2021-02-17 17:07:13 |
| R22.htm | 62022 | 2021-02-17 17:07:13 |
| R23.htm | 6317 | 2021-02-17 17:07:13 |
| R24.htm | 18844 | 2021-02-17 17:07:13 |
| R25.htm | 118072 | 2021-02-17 17:07:13 |
| R26.htm | 48346 | 2021-02-17 17:07:13 |
| R27.htm | 90426 | 2021-02-17 17:07:13 |
| R28.htm | 33782 | 2021-02-17 17:07:13 |
| R29.htm | 48783 | 2021-02-17 17:07:13 |
| R3.htm | 42582 | 2021-02-17 17:07:13 |
| R30.htm | 37249 | 2021-02-17 17:07:13 |
| R31.htm | 98897 | 2021-02-17 17:07:13 |
| R32.htm | 42040 | 2021-02-17 17:07:13 |
| R33.htm | 40081 | 2021-02-17 17:07:13 |
| R34.htm | 110372 | 2021-02-17 17:07:13 |
| R35.htm | 549816 | 2021-02-17 17:07:13 |
| R36.htm | 56379 | 2021-02-17 17:07:13 |
| R37.htm | 96121 | 2021-02-17 17:07:13 |
| R38.htm | 32281 | 2021-02-17 17:07:13 |
| R39.htm | 54358 | 2021-02-17 17:07:13 |
| R4.htm | 119752 | 2021-02-17 17:07:13 |
| R40.htm | 58777 | 2021-02-17 17:07:13 |
| R41.htm | 117396 | 2021-02-17 17:07:13 |
| R42.htm | 48076 | 2021-02-17 17:07:13 |
| R43.htm | 80583 | 2021-02-17 17:07:13 |
| R44.htm | 17420 | 2021-02-17 17:07:13 |
| R45.htm | 34184 | 2021-02-17 17:07:13 |
| R46.htm | 55126 | 2021-02-17 17:07:13 |
| R47.htm | 61606 | 2021-02-17 17:07:13 |
| R48.htm | 7686 | 2021-02-17 17:07:13 |
| R49.htm | 18781 | 2021-02-17 17:07:13 |
| R5.htm | 17076 | 2021-02-17 17:07:13 |
| R50.htm | 17593 | 2021-02-17 17:07:13 |
| R51.htm | 20924 | 2021-02-17 17:07:13 |
| R52.htm | 11705 | 2021-02-17 17:07:13 |
| R53.htm | 34145 | 2021-02-17 17:07:13 |
| R54.htm | 85708 | 2021-02-17 17:07:13 |
| R55.htm | 22826 | 2021-02-17 17:07:13 |
| R56.htm | 95669 | 2021-02-17 17:07:13 |
| R57.htm | 39955 | 2021-02-17 17:07:13 |
| R58.htm | 11014 | 2021-02-17 17:07:13 |
| R59.htm | 12128 | 2021-02-17 17:07:13 |
| R6.htm | 119499 | 2021-02-17 17:07:13 |
| R60.htm | 11603 | 2021-02-17 17:07:13 |
| R61.htm | 16771 | 2021-02-17 17:07:13 |
| R62.htm | 14700 | 2021-02-17 17:07:13 |
| R63.htm | 17815 | 2021-02-17 17:07:13 |
| R64.htm | 40101 | 2021-02-17 17:07:13 |
| R65.htm | 45501 | 2021-02-17 17:07:13 |
| R66.htm | 36368 | 2021-02-17 17:07:13 |
| R67.htm | 21597 | 2021-02-17 17:07:13 |
| R68.htm | 16172 | 2021-02-17 17:07:13 |
| R69.htm | 30262 | 2021-02-17 17:07:13 |
| R7.htm | 62080 | 2021-02-17 17:07:13 |
| R70.htm | 102549 | 2021-02-17 17:07:13 |
| R71.htm | 50524 | 2021-02-17 17:07:13 |
| R72.htm | 21243 | 2021-02-17 17:07:13 |
| R73.htm | 130804 | 2021-02-17 17:07:13 |
| R74.htm | 30044 | 2021-02-17 17:07:13 |
| R75.htm | 50938 | 2021-02-17 17:07:13 |
| R76.htm | 13297 | 2021-02-17 17:07:13 |
| R77.htm | 26016 | 2021-02-17 17:07:13 |
| R78.htm | 80829 | 2021-02-17 17:07:13 |
| R79.htm | 39857 | 2021-02-17 17:07:13 |
| R8.htm | 5999 | 2021-02-17 17:07:13 |
| R80.htm | 84400 | 2021-02-17 17:07:13 |
| R81.htm | 12198 | 2021-02-17 17:07:13 |
| R82.htm | 48794 | 2021-02-17 17:07:13 |
| R83.htm | 15065 | 2021-02-17 17:07:13 |
| R84.htm | 33172 | 2021-02-17 17:07:13 |
| R85.htm | 73551 | 2021-02-17 17:07:13 |
| R86.htm | 68494 | 2021-02-17 17:07:13 |
| R87.htm | 17960 | 2021-02-17 17:07:13 |
| R88.htm | 38771 | 2021-02-17 17:07:13 |
| R89.htm | 23352 | 2021-02-17 17:07:13 |
| R9.htm | 81305 | 2021-02-17 17:07:13 |
| R90.htm | 24623 | 2021-02-17 17:07:13 |
| R91.htm | 25398 | 2021-02-17 17:07:13 |
| R92.htm | 63646 | 2021-02-17 17:07:13 |
| R93.htm | 100177 | 2021-02-17 17:07:13 |
| R94.htm | 10716 | 2021-02-17 17:07:13 |
| R95.htm | 27292 | 2021-02-17 17:07:13 |
| R96.htm | 36590 | 2021-02-17 17:07:13 |
| R97.htm | 15126 | 2021-02-17 17:07:13 |
| R98.htm | 15237 | 2021-02-17 17:07:13 |
| R99.htm | 9464 | 2021-02-17 17:07:13 |
| report.css | 2768 | 2021-02-17 17:07:13 |
| Show.js | 1086 | 2021-02-17 17:07:13 |