Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-19-086622-index-headers.html | 2019-03-26 16:30:30 | |
| 0001193125-19-086622-index.html | 2019-03-26 16:30:30 | |
| 0001193125-19-086622.txt | 2019-03-26 16:30:30 | |
 0001193125-19-086622-xbrl.zip | 340153 | 2019-03-26 16:30:30 |
| d716850dex21.htm | 11090 | 2019-03-26 16:30:30 |
| d716850dex23a.htm | 2212 | 2019-03-26 16:30:30 |
| d716850dex24.htm | 49305 | 2019-03-26 16:30:30 |
| d716850dex5.htm | 5740 | 2019-03-26 16:30:30 |
| d716850dposam.htm | 3872760 | 2019-03-26 16:30:30 |
| FilingSummary.xml | 72172 | 2019-03-26 16:30:30 |
| Financial_Report.xlsx | 158642 | 2019-03-26 16:30:30 |
 g68577534.jpg | 7075 | 2019-03-26 16:30:30 |
| nwlic-20181231.xml | 3123598 | 2019-03-26 16:30:30 |
| nwlic-20181231.xsd | 115457 | 2019-03-26 16:30:30 |
| nwlic-20181231_cal.xml | 132200 | 2019-03-26 16:30:30 |
| nwlic-20181231_def.xml | 415284 | 2019-03-26 16:30:30 |
| nwlic-20181231_lab.xml | 844411 | 2019-03-26 16:30:30 |
| nwlic-20181231_pre.xml | 660916 | 2019-03-26 16:30:30 |
| R1.htm | 14568 | 2019-03-26 16:30:30 |
| R10.htm | 17548 | 2019-03-26 16:30:30 |
| R100.htm | 18475 | 2019-03-26 16:30:30 |
| R101.htm | 16464 | 2019-03-26 16:30:30 |
| R102.htm | 63568 | 2019-03-26 16:30:30 |
| R103.htm | 26161 | 2019-03-26 16:30:30 |
| R104.htm | 13817 | 2019-03-26 16:30:30 |
| R105.htm | 4117 | 2019-03-26 16:30:30 |
| R106.htm | 92494 | 2019-03-26 16:30:30 |
| R107.htm | 49156 | 2019-03-26 16:30:30 |
| R108.htm | 45520 | 2019-03-26 16:30:30 |
| R109.htm | 26833 | 2019-03-26 16:30:30 |
| R11.htm | 69884 | 2019-03-26 16:30:30 |
| R110.htm | 13047 | 2019-03-26 16:30:30 |
| R12.htm | 15613 | 2019-03-26 16:30:30 |
| R13.htm | 228028 | 2019-03-26 16:30:30 |
| R14.htm | 48985 | 2019-03-26 16:30:30 |
| R15.htm | 176130 | 2019-03-26 16:30:30 |
| R16.htm | 13869 | 2019-03-26 16:30:30 |
| R17.htm | 58770 | 2019-03-26 16:30:30 |
| R18.htm | 6959 | 2019-03-26 16:30:30 |
| R19.htm | 11154 | 2019-03-26 16:30:30 |
| R2.htm | 45882 | 2019-03-26 16:30:30 |
| R20.htm | 55574 | 2019-03-26 16:30:30 |
| R21.htm | 20849 | 2019-03-26 16:30:30 |
| R22.htm | 19473 | 2019-03-26 16:30:30 |
| R23.htm | 7974 | 2019-03-26 16:30:30 |
| R24.htm | 19356 | 2019-03-26 16:30:30 |
| R25.htm | 103576 | 2019-03-26 16:30:30 |
| R26.htm | 27880 | 2019-03-26 16:30:30 |
| R27.htm | 60618 | 2019-03-26 16:30:30 |
| R28.htm | 33629 | 2019-03-26 16:30:30 |
| R29.htm | 20538 | 2019-03-26 16:30:30 |
| R3.htm | 25706 | 2019-03-26 16:30:30 |
| R30.htm | 126418 | 2019-03-26 16:30:30 |
| R31.htm | 7719 | 2019-03-26 16:30:30 |
| R32.htm | 53225 | 2019-03-26 16:30:30 |
| R33.htm | 12778 | 2019-03-26 16:30:30 |
| R34.htm | 219950 | 2019-03-26 16:30:30 |
| R35.htm | 43586 | 2019-03-26 16:30:30 |
| R36.htm | 158281 | 2019-03-26 16:30:30 |
| R37.htm | 13899 | 2019-03-26 16:30:30 |
| R38.htm | 55100 | 2019-03-26 16:30:30 |
| R39.htm | 13626 | 2019-03-26 16:30:30 |
| R4.htm | 71238 | 2019-03-26 16:30:30 |
| R40.htm | 58039 | 2019-03-26 16:30:30 |
| R41.htm | 13559 | 2019-03-26 16:30:30 |
| R42.htm | 18609 | 2019-03-26 16:30:30 |
| R43.htm | 98533 | 2019-03-26 16:30:30 |
| R44.htm | 85620 | 2019-03-26 16:30:30 |
| R45.htm | 8014 | 2019-03-26 16:30:30 |
| R46.htm | 9090 | 2019-03-26 16:30:30 |
| R47.htm | 45036 | 2019-03-26 16:30:30 |
| R48.htm | 25322 | 2019-03-26 16:30:30 |
| R49.htm | 9452 | 2019-03-26 16:30:30 |
| R5.htm | 10695 | 2019-03-26 16:30:30 |
| R50.htm | 16837 | 2019-03-26 16:30:30 |
| R51.htm | 5745 | 2019-03-26 16:30:30 |
| R52.htm | 13491 | 2019-03-26 16:30:30 |
| R53.htm | 14231 | 2019-03-26 16:30:30 |
| R54.htm | 7016 | 2019-03-26 16:30:30 |
| R55.htm | 39517 | 2019-03-26 16:30:30 |
| R56.htm | 42220 | 2019-03-26 16:30:30 |
| R57.htm | 17722 | 2019-03-26 16:30:30 |
| R58.htm | 5528 | 2019-03-26 16:30:30 |
| R59.htm | 31401 | 2019-03-26 16:30:30 |
| R6.htm | 35334 | 2019-03-26 16:30:30 |
| R60.htm | 4337 | 2019-03-26 16:30:30 |
| R61.htm | 54595 | 2019-03-26 16:30:30 |
| R62.htm | 17307 | 2019-03-26 16:30:30 |
| R63.htm | 27037 | 2019-03-26 16:30:30 |
| R64.htm | 12025 | 2019-03-26 16:30:30 |
| R65.htm | 47810 | 2019-03-26 16:30:30 |
| R66.htm | 23113 | 2019-03-26 16:30:30 |
| R67.htm | 19699 | 2019-03-26 16:30:30 |
| R68.htm | 8093 | 2019-03-26 16:30:30 |
| R69.htm | 13983 | 2019-03-26 16:30:30 |
| R7.htm | 75696 | 2019-03-26 16:30:30 |
| R70.htm | 33195 | 2019-03-26 16:30:30 |
| R71.htm | 4568 | 2019-03-26 16:30:30 |
| R72.htm | 21416 | 2019-03-26 16:30:30 |
| R73.htm | 19658 | 2019-03-26 16:30:30 |
| R74.htm | 4763 | 2019-03-26 16:30:30 |
| R75.htm | 92286 | 2019-03-26 16:30:30 |
| R76.htm | 17770 | 2019-03-26 16:30:30 |
| R77.htm | 59145 | 2019-03-26 16:30:30 |
| R78.htm | 13975 | 2019-03-26 16:30:30 |
| R79.htm | 21895 | 2019-03-26 16:30:30 |
| R8.htm | 10557 | 2019-03-26 16:30:30 |
| R80.htm | 8785 | 2019-03-26 16:30:30 |
| R81.htm | 9639 | 2019-03-26 16:30:30 |
| R82.htm | 13937 | 2019-03-26 16:30:30 |
| R83.htm | 8820 | 2019-03-26 16:30:30 |
| R84.htm | 44197 | 2019-03-26 16:30:30 |
| R85.htm | 13765 | 2019-03-26 16:30:30 |
| R86.htm | 5566 | 2019-03-26 16:30:30 |
| R87.htm | 54675 | 2019-03-26 16:30:30 |
| R88.htm | 38441 | 2019-03-26 16:30:30 |
| R89.htm | 4708 | 2019-03-26 16:30:30 |
| R9.htm | 109017 | 2019-03-26 16:30:30 |
| R90.htm | 46938 | 2019-03-26 16:30:30 |
| R91.htm | 14505 | 2019-03-26 16:30:30 |
| R92.htm | 9456 | 2019-03-26 16:30:30 |
| R93.htm | 4685 | 2019-03-26 16:30:30 |
| R94.htm | 11250 | 2019-03-26 16:30:30 |
| R95.htm | 38545 | 2019-03-26 16:30:30 |
| R96.htm | 8082 | 2019-03-26 16:30:30 |
| R97.htm | 48306 | 2019-03-26 16:30:30 |
| R98.htm | 27580 | 2019-03-26 16:30:30 |
| R99.htm | 11635 | 2019-03-26 16:30:30 |
| report.css | 2768 | 2019-03-26 16:30:30 |
| Show.js | 1086 | 2019-03-26 16:30:30 |