Expense Example, No Redemption
|
Dec. 31, 2025
USD ($)
|
| (MSIF - Counterpoint Global Portfolios) | Advantage Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
$ 87
|
| Expense Example, No Redemption, 3 Years |
308
|
| Expense Example, No Redemption, 5 Years |
547
|
| Expense Example, No Redemption, 10 Years |
1,232
|
| (MSIF - Counterpoint Global Portfolios) | Advantage Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
641
|
| Expense Example, No Redemption, 3 Years |
902
|
| Expense Example, No Redemption, 5 Years |
1,183
|
| Expense Example, No Redemption, 10 Years |
1,982
|
| (MSIF - Counterpoint Global Portfolios) | Advantage Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
101
|
| Expense Example, No Redemption, 3 Years |
513
|
| Expense Example, No Redemption, 5 Years |
950
|
| Expense Example, No Redemption, 10 Years |
2,168
|
| (MSIF - Counterpoint Global Portfolios) | Advantage Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
198
|
| Expense Example, No Redemption, 3 Years |
629
|
| Expense Example, No Redemption, 5 Years |
1,086
|
| Expense Example, No Redemption, 10 Years |
2,159
|
| (MSIF - Counterpoint Global Portfolios) | Advantage Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
83
|
| Expense Example, No Redemption, 3 Years |
280
|
| Expense Example, No Redemption, 5 Years |
494
|
| Expense Example, No Redemption, 10 Years |
1,110
|
| (MSIF - Counterpoint Global Portfolios) | Global Endurance Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
522
|
| Expense Example, No Redemption, 5 Years |
968
|
| Expense Example, No Redemption, 10 Years |
2,208
|
| (MSIF - Counterpoint Global Portfolios) | Global Endurance Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
1,135
|
| Expense Example, No Redemption, 5 Years |
1,640
|
| Expense Example, No Redemption, 10 Years |
3,024
|
| (MSIF - Counterpoint Global Portfolios) | Global Endurance Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
884
|
| Expense Example, No Redemption, 5 Years |
1,578
|
| Expense Example, No Redemption, 10 Years |
3,238
|
| (MSIF - Counterpoint Global Portfolios) | Global Endurance Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
1,856
|
| Expense Example, No Redemption, 5 Years |
3,484
|
| Expense Example, No Redemption, 10 Years |
7,045
|
| (MSIF - Counterpoint Global Portfolios) | Global Insight Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
431
|
| Expense Example, No Redemption, 5 Years |
784
|
| Expense Example, No Redemption, 10 Years |
1,778
|
| (MSIF - Counterpoint Global Portfolios) | Global Insight Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
652
|
| Expense Example, No Redemption, 3 Years |
1,015
|
| Expense Example, No Redemption, 5 Years |
1,402
|
| Expense Example, No Redemption, 10 Years |
2,483
|
| (MSIF - Counterpoint Global Portfolios) | Global Insight Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
188
|
| Expense Example, No Redemption, 3 Years |
821
|
| Expense Example, No Redemption, 5 Years |
1,480
|
| Expense Example, No Redemption, 10 Years |
3,245
|
| (MSIF - Counterpoint Global Portfolios) | Global Insight Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
759
|
| Expense Example, No Redemption, 5 Years |
1,332
|
| Expense Example, No Redemption, 10 Years |
2,693
|
| (MSIF - Counterpoint Global Portfolios) | Global Insight Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
1,281
|
| Expense Example, No Redemption, 5 Years |
2,447
|
| Expense Example, No Redemption, 10 Years |
5,290
|
| (MSIF - Counterpoint Global Portfolios) | Global Permanence Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
1,746
|
| Expense Example, No Redemption, 5 Years |
3,288
|
| Expense Example, No Redemption, 10 Years |
6,736
|
| (MSIF - Counterpoint Global Portfolios) | Global Permanence Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
2,350
|
| Expense Example, No Redemption, 5 Years |
3,912
|
| Expense Example, No Redemption, 10 Years |
7,304
|
| (MSIF - Counterpoint Global Portfolios) | Global Permanence Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
2,147
|
| Expense Example, No Redemption, 5 Years |
3,896
|
| Expense Example, No Redemption, 10 Years |
7,466
|
| (MSIF - Counterpoint Global Portfolios) | Global Permanence Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
3,135
|
| Expense Example, No Redemption, 5 Years |
5,519
|
| Expense Example, No Redemption, 10 Years |
9,467
|
| (MSIF - Counterpoint Global Portfolios) | Growth Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
64
|
| Expense Example, No Redemption, 3 Years |
202
|
| Expense Example, No Redemption, 5 Years |
351
|
| Expense Example, No Redemption, 10 Years |
786
|
| (MSIF - Counterpoint Global Portfolios) | Growth Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
611
|
| Expense Example, No Redemption, 3 Years |
794
|
| Expense Example, No Redemption, 5 Years |
992
|
| Expense Example, No Redemption, 10 Years |
1,564
|
| (MSIF - Counterpoint Global Portfolios) | Growth Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
143
|
| Expense Example, No Redemption, 3 Years |
443
|
| Expense Example, No Redemption, 5 Years |
766
|
| Expense Example, No Redemption, 10 Years |
1,680
|
| (MSIF - Counterpoint Global Portfolios) | Growth Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
167
|
| Expense Example, No Redemption, 3 Years |
517
|
| Expense Example, No Redemption, 5 Years |
892
|
| Expense Example, No Redemption, 10 Years |
1,743
|
| (MSIF - Counterpoint Global Portfolios) | Growth Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
54
|
| Expense Example, No Redemption, 3 Years |
170
|
| Expense Example, No Redemption, 5 Years |
296
|
| Expense Example, No Redemption, 10 Years |
665
|
| (MSIF - Counterpoint Global Portfolios) | Inception Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
359
|
| Expense Example, No Redemption, 5 Years |
636
|
| Expense Example, No Redemption, 10 Years |
1,426
|
| (MSIF - Counterpoint Global Portfolios) | Inception Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
960
|
| Expense Example, No Redemption, 5 Years |
1,287
|
| Expense Example, No Redemption, 10 Years |
2,209
|
| (MSIF - Counterpoint Global Portfolios) | Inception Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
188
|
| Expense Example, No Redemption, 3 Years |
710
|
| Expense Example, No Redemption, 5 Years |
1,260
|
| Expense Example, No Redemption, 10 Years |
2,759
|
| (MSIF - Counterpoint Global Portfolios) | Inception Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
697
|
| Expense Example, No Redemption, 5 Years |
1,208
|
| Expense Example, No Redemption, 10 Years |
2,412
|
| (MSIF - Counterpoint Global Portfolios) | Inception Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
95
|
| Expense Example, No Redemption, 3 Years |
337
|
| Expense Example, No Redemption, 5 Years |
599
|
| Expense Example, No Redemption, 10 Years |
1,346
|
| (MSIF - Counterpoint Global Portfolios) | Permanence Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
87
|
| Expense Example, No Redemption, 3 Years |
1,378
|
| Expense Example, No Redemption, 5 Years |
2,637
|
| Expense Example, No Redemption, 10 Years |
5,645
|
| (MSIF - Counterpoint Global Portfolios) | Permanence Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
641
|
| Expense Example, No Redemption, 3 Years |
1,985
|
| Expense Example, No Redemption, 5 Years |
3,277
|
| Expense Example, No Redemption, 10 Years |
6,290
|
| (MSIF - Counterpoint Global Portfolios) | Permanence Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
198
|
| Expense Example, No Redemption, 3 Years |
2,680
|
| Expense Example, No Redemption, 5 Years |
4,778
|
| Expense Example, No Redemption, 10 Years |
8,111
|
| (MSIF - Counterpoint Global Portfolios) | Permanence Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
82
|
| Expense Example, No Redemption, 3 Years |
1,881
|
| Expense Example, No Redemption, 5 Years |
3,540
|
| Expense Example, No Redemption, 10 Years |
7,141
|
| (MSIF - Counterpoint Global Portfolios) | Vitality Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
2,702
|
| Expense Example, No Redemption, 5 Years |
4,874
|
| Expense Example, No Redemption, 10 Years |
8,855
|
| (MSIF - Counterpoint Global Portfolios) | Vitality Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
650
|
| Expense Example, No Redemption, 3 Years |
4,097
|
| Expense Example, No Redemption, 5 Years |
6,550
|
| Expense Example, No Redemption, 10 Years |
10,017
|
| (MSIF - Counterpoint Global Portfolios) | Vitality Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
208
|
| Expense Example, No Redemption, 3 Years |
3,978
|
| Expense Example, No Redemption, 5 Years |
6,586
|
| Expense Example, No Redemption, 10 Years |
10,065
|
| (MSIF - Counterpoint Global Portfolios) | Vitality Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
92
|
| Expense Example, No Redemption, 3 Years |
3,731
|
| Expense Example, No Redemption, 5 Years |
6,326
|
| Expense Example, No Redemption, 10 Years |
10,008
|
| (MSIF - Opportunity Portfolios) | Asia Opportunity Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
112
|
| Expense Example, No Redemption, 3 Years |
395
|
| Expense Example, No Redemption, 5 Years |
698
|
| Expense Example, No Redemption, 10 Years |
1,561
|
| (MSIF - Opportunity Portfolios) | Asia Opportunity Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
665
|
| Expense Example, No Redemption, 3 Years |
986
|
| Expense Example, No Redemption, 5 Years |
1,329
|
| Expense Example, No Redemption, 10 Years |
2,294
|
| (MSIF - Opportunity Portfolios) | Asia Opportunity Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
223
|
| Expense Example, No Redemption, 3 Years |
723
|
| Expense Example, No Redemption, 5 Years |
1,250
|
| Expense Example, No Redemption, 10 Years |
2,496
|
| (MSIF - Opportunity Portfolios) | Asia Opportunity Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
107
|
| Expense Example, No Redemption, 3 Years |
377
|
| Expense Example, No Redemption, 5 Years |
667
|
| Expense Example, No Redemption, 10 Years |
1,494
|
| (MSIF - Opportunity Portfolios) | Developing Opportunity Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
118
|
| Expense Example, No Redemption, 3 Years |
534
|
| Expense Example, No Redemption, 5 Years |
975
|
| Expense Example, No Redemption, 10 Years |
2,201
|
| (MSIF - Opportunity Portfolios) | Developing Opportunity Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
671
|
| Expense Example, No Redemption, 3 Years |
1,136
|
| Expense Example, No Redemption, 5 Years |
1,627
|
| Expense Example, No Redemption, 10 Years |
2,973
|
| (MSIF - Opportunity Portfolios) | Developing Opportunity Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
229
|
| Expense Example, No Redemption, 3 Years |
870
|
| Expense Example, No Redemption, 5 Years |
1,536
|
| Expense Example, No Redemption, 10 Years |
3,142
|
| (MSIF - Opportunity Portfolios) | Developing Opportunity Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
113
|
| Expense Example, No Redemption, 3 Years |
3,906
|
| Expense Example, No Redemption, 5 Years |
6,535
|
| Expense Example, No Redemption, 10 Years |
10,099
|
| (MSIF - Opportunity Portfolios) | Global Opportunity Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
96
|
| Expense Example, No Redemption, 3 Years |
300
|
| Expense Example, No Redemption, 5 Years |
520
|
| Expense Example, No Redemption, 10 Years |
1,155
|
| (MSIF - Opportunity Portfolios) | Global Opportunity Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
643
|
| Expense Example, No Redemption, 3 Years |
892
|
| Expense Example, No Redemption, 5 Years |
1,160
|
| Expense Example, No Redemption, 10 Years |
1,925
|
| (MSIF - Opportunity Portfolios) | Global Opportunity Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
134
|
| Expense Example, No Redemption, 3 Years |
513
|
| Expense Example, No Redemption, 5 Years |
917
|
| Expense Example, No Redemption, 10 Years |
2,047
|
| (MSIF - Opportunity Portfolios) | Global Opportunity Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
198
|
| Expense Example, No Redemption, 3 Years |
612
|
| Expense Example, No Redemption, 5 Years |
1,052
|
| Expense Example, No Redemption, 10 Years |
2,086
|
| (MSIF - Opportunity Portfolios) | Global Opportunity Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
87
|
| Expense Example, No Redemption, 3 Years |
271
|
| Expense Example, No Redemption, 5 Years |
471
|
| Expense Example, No Redemption, 10 Years |
1,049
|
| (MSIF - Opportunity Portfolios) | International Advantage Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
321
|
| Expense Example, No Redemption, 5 Years |
557
|
| Expense Example, No Redemption, 10 Years |
1,235
|
| (MSIF - Opportunity Portfolios) | International Advantage Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
650
|
| Expense Example, No Redemption, 3 Years |
915
|
| Expense Example, No Redemption, 5 Years |
1,200
|
| Expense Example, No Redemption, 10 Years |
2,010
|
| (MSIF - Opportunity Portfolios) | International Advantage Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
188
|
| Expense Example, No Redemption, 3 Years |
657
|
| Expense Example, No Redemption, 5 Years |
1,152
|
| Expense Example, No Redemption, 10 Years |
2,516
|
| (MSIF - Opportunity Portfolios) | International Advantage Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
208
|
| Expense Example, No Redemption, 3 Years |
643
|
| Expense Example, No Redemption, 5 Years |
1,103
|
| Expense Example, No Redemption, 10 Years |
2,187
|
| (MSIF - Opportunity Portfolios) | International Advantage Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
92
|
| Expense Example, No Redemption, 3 Years |
287
|
| Expense Example, No Redemption, 5 Years |
498
|
| Expense Example, No Redemption, 10 Years |
1,108
|
| (MSIF - Opportunity Portfolios) | International Opportunity Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
336
|
| Expense Example, No Redemption, 5 Years |
588
|
| Expense Example, No Redemption, 10 Years |
1,310
|
| (MSIF - Opportunity Portfolios) | International Opportunity Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
930
|
| Expense Example, No Redemption, 5 Years |
1,226
|
| Expense Example, No Redemption, 10 Years |
2,064
|
| (MSIF - Opportunity Portfolios) | International Opportunity Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
188
|
| Expense Example, No Redemption, 3 Years |
850
|
| Expense Example, No Redemption, 5 Years |
1,536
|
| Expense Example, No Redemption, 10 Years |
3,367
|
| (MSIF - Opportunity Portfolios) | International Opportunity Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
660
|
| Expense Example, No Redemption, 5 Years |
1,133
|
| Expense Example, No Redemption, 10 Years |
2,247
|
| (MSIF - Opportunity Portfolios) | International Opportunity Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
96
|
| Expense Example, No Redemption, 3 Years |
362
|
| Expense Example, No Redemption, 5 Years |
648
|
| Expense Example, No Redemption, 10 Years |
1,463
|
| (MSIF - Applied Equity Portfolios) | Global Concentrated Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
329
|
| Expense Example, No Redemption, 5 Years |
575
|
| Expense Example, No Redemption, 10 Years |
1,278
|
| (MSIF - Applied Equity Portfolios) | Global Concentrated Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
653
|
| Expense Example, No Redemption, 3 Years |
924
|
| Expense Example, No Redemption, 5 Years |
1,216
|
| Expense Example, No Redemption, 10 Years |
2,042
|
| (MSIF - Applied Equity Portfolios) | Global Concentrated Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
211
|
| Expense Example, No Redemption, 3 Years |
652
|
| Expense Example, No Redemption, 5 Years |
1,119
|
| Expense Example, No Redemption, 10 Years |
2,219
|
| (MSIF - Applied Equity Portfolios) | Global Concentrated Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
1,534
|
| Expense Example, No Redemption, 5 Years |
2,913
|
| Expense Example, No Redemption, 10 Years |
6,120
|
| (MSIF - Applied Equity Portfolios) | Global Core Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
102
|
| Expense Example, No Redemption, 3 Years |
440
|
| Expense Example, No Redemption, 5 Years |
801
|
| Expense Example, No Redemption, 10 Years |
1,819
|
| (MSIF - Applied Equity Portfolios) | Global Core Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
1,030
|
| Expense Example, No Redemption, 5 Years |
1,429
|
| Expense Example, No Redemption, 10 Years |
2,542
|
| (MSIF - Applied Equity Portfolios) | Global Core Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
773
|
| Expense Example, No Redemption, 5 Years |
1,360
|
| Expense Example, No Redemption, 10 Years |
2,755
|
| (MSIF - Applied Equity Portfolios) | Global Core Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
3,161
|
| Expense Example, No Redemption, 5 Years |
5,556
|
| Expense Example, No Redemption, 10 Years |
9,498
|
| (MSIF - Applied Equity Portfolios) | US Core Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
82
|
| Expense Example, No Redemption, 3 Years |
271
|
| Expense Example, No Redemption, 5 Years |
475
|
| Expense Example, No Redemption, 10 Years |
1,066
|
| (MSIF - Applied Equity Portfolios) | US Core Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
634
|
| Expense Example, No Redemption, 3 Years |
865
|
| Expense Example, No Redemption, 5 Years |
1,115
|
| Expense Example, No Redemption, 10 Years |
1,827
|
| (MSIF - Applied Equity Portfolios) | US Core Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
192
|
| Expense Example, No Redemption, 3 Years |
594
|
| Expense Example, No Redemption, 5 Years |
1,021
|
| Expense Example, No Redemption, 10 Years |
2,014
|
| (MSIF - Applied Equity Portfolios) | US Core Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
77
|
| Expense Example, No Redemption, 3 Years |
311
|
| Expense Example, No Redemption, 5 Years |
563
|
| Expense Example, No Redemption, 10 Years |
1,287
|
| (MSIF - Growth Portfolio - Class IR) | Growth Portfolio | Class IR |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
75
|
| Expense Example, No Redemption, 3 Years |
2,089
|
| Expense Example, No Redemption, 5 Years |
3,900
|
| Expense Example, No Redemption, 10 Years |
7,668
|
| (MSIF - Opportunity Portfolios - Class IR) | Global Opportunity Portfolio | Class IR |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
316
|
| Expense Example, No Redemption, 5 Years |
552
|
| Expense Example, No Redemption, 10 Years |
1,231
|
| (MSIF - Opportunity Portfolios - Class IR) | International Opportunity Portfolio | Class IR |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
96
|
| Expense Example, No Redemption, 3 Years |
3,054
|
| Expense Example, No Redemption, 5 Years |
5,403
|
| Expense Example, No Redemption, 10 Years |
9,369
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Passport Overseas Equity Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
92
|
| Expense Example, No Redemption, 3 Years |
332
|
| Expense Example, No Redemption, 5 Years |
591
|
| Expense Example, No Redemption, 10 Years |
1,333
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Passport Overseas Equity Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
646
|
| Expense Example, No Redemption, 3 Years |
929
|
| Expense Example, No Redemption, 5 Years |
1,233
|
| Expense Example, No Redemption, 10 Years |
2,095
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Passport Overseas Equity Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
178
|
| Expense Example, No Redemption, 3 Years |
591
|
| Expense Example, No Redemption, 5 Years |
1,029
|
| Expense Example, No Redemption, 10 Years |
2,249
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Passport Overseas Equity Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
203
|
| Expense Example, No Redemption, 3 Years |
823
|
| Expense Example, No Redemption, 5 Years |
1,469
|
| Expense Example, No Redemption, 10 Years |
2,831
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Passport Overseas Equity Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
87
|
| Expense Example, No Redemption, 3 Years |
1,610
|
| Expense Example, No Redemption, 5 Years |
3,058
|
| Expense Example, No Redemption, 10 Years |
6,374
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Leaders Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
101
|
| Expense Example, No Redemption, 3 Years |
381
|
| Expense Example, No Redemption, 5 Years |
683
|
| Expense Example, No Redemption, 10 Years |
1,541
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Leaders Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
980
|
| Expense Example, No Redemption, 5 Years |
1,328
|
| Expense Example, No Redemption, 10 Years |
2,305
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Leaders Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
726
|
| Expense Example, No Redemption, 5 Years |
1,266
|
| Expense Example, No Redemption, 10 Years |
2,535
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Leaders Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
639
|
| Expense Example, No Redemption, 5 Years |
1,207
|
| Expense Example, No Redemption, 10 Years |
2,756
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
101
|
| Expense Example, No Redemption, 3 Years |
350
|
| Expense Example, No Redemption, 5 Years |
618
|
| Expense Example, No Redemption, 10 Years |
1,383
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
655
|
| Expense Example, No Redemption, 3 Years |
958
|
| Expense Example, No Redemption, 5 Years |
1,283
|
| Expense Example, No Redemption, 10 Years |
2,200
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
188
|
| Expense Example, No Redemption, 3 Years |
823
|
| Expense Example, No Redemption, 5 Years |
1,484
|
| Expense Example, No Redemption, 10 Years |
3,254
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
213
|
| Expense Example, No Redemption, 3 Years |
804
|
| Expense Example, No Redemption, 5 Years |
1,421
|
| Expense Example, No Redemption, 10 Years |
2,768
|
| (MSIF - Emerging Markets Equity Portfolios - Classes I, A, L, C and R6) | Emerging Markets Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
320
|
| Expense Example, No Redemption, 5 Years |
561
|
| Expense Example, No Redemption, 10 Years |
1,252
|
| (MSIF - Emerging Markets Equity Portfolios - Class IR) | Passport Overseas Equity Portfolio | Class IR |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
87
|
| Expense Example, No Redemption, 3 Years |
2,707
|
| Expense Example, No Redemption, 5 Years |
4,889
|
| Expense Example, No Redemption, 10 Years |
8,875
|
| (MSIF - Emerging Markets Equity Portfolios - Class IR) | Emerging Markets Leaders Portfolio | Class IR |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
4,546
|
| Expense Example, No Redemption, 5 Years |
7,254
|
| Expense Example, No Redemption, 10 Years |
10,248
|
| (MSIF - Emerging Markets Equity Portfolios - Class IR) | Emerging Markets Portfolio | Class IR |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
3,321
|
| Expense Example, No Redemption, 5 Years |
5,781
|
| Expense Example, No Redemption, 10 Years |
9,672
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Franchise Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
98
|
| Expense Example, No Redemption, 3 Years |
306
|
| Expense Example, No Redemption, 5 Years |
531
|
| Expense Example, No Redemption, 10 Years |
1,178
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Franchise Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
642
|
| Expense Example, No Redemption, 3 Years |
889
|
| Expense Example, No Redemption, 5 Years |
1,155
|
| Expense Example, No Redemption, 10 Years |
1,914
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Franchise Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
180
|
| Expense Example, No Redemption, 3 Years |
557
|
| Expense Example, No Redemption, 5 Years |
959
|
| Expense Example, No Redemption, 10 Years |
2,084
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Franchise Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
198
|
| Expense Example, No Redemption, 3 Years |
612
|
| Expense Example, No Redemption, 5 Years |
1,052
|
| Expense Example, No Redemption, 10 Years |
2,083
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Franchise Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
86
|
| Expense Example, No Redemption, 3 Years |
268
|
| Expense Example, No Redemption, 5 Years |
466
|
| Expense Example, No Redemption, 10 Years |
1,037
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Stars Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
82
|
| Expense Example, No Redemption, 3 Years |
410
|
| Expense Example, No Redemption, 5 Years |
761
|
| Expense Example, No Redemption, 10 Years |
1,751
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Stars Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
636
|
| Expense Example, No Redemption, 3 Years |
1,018
|
| Expense Example, No Redemption, 5 Years |
1,423
|
| Expense Example, No Redemption, 10 Years |
2,554
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Stars Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
168
|
| Expense Example, No Redemption, 3 Years |
687
|
| Expense Example, No Redemption, 5 Years |
1,233
|
| Expense Example, No Redemption, 10 Years |
2,726
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Stars Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
193
|
| Expense Example, No Redemption, 3 Years |
746
|
| Expense Example, No Redemption, 5 Years |
1,326
|
| Expense Example, No Redemption, 10 Years |
2,720
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | Global Stars Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
77
|
| Expense Example, No Redemption, 3 Years |
1,105
|
| Expense Example, No Redemption, 5 Years |
2,135
|
| Expense Example, No Redemption, 10 Years |
4,717
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Equity Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
97
|
| Expense Example, No Redemption, 3 Years |
331
|
| Expense Example, No Redemption, 5 Years |
583
|
| Expense Example, No Redemption, 10 Years |
1,306
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Equity Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
645
|
| Expense Example, No Redemption, 3 Years |
898
|
| Expense Example, No Redemption, 5 Years |
1,170
|
| Expense Example, No Redemption, 10 Years |
1,946
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Equity Portfolio | Class L |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
183
|
| Expense Example, No Redemption, 3 Years |
596
|
| Expense Example, No Redemption, 5 Years |
1,034
|
| Expense Example, No Redemption, 10 Years |
2,253
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Equity Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
208
|
| Expense Example, No Redemption, 3 Years |
781
|
| Expense Example, No Redemption, 5 Years |
1,380
|
| Expense Example, No Redemption, 10 Years |
2,642
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Equity Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
93
|
| Expense Example, No Redemption, 3 Years |
307
|
| Expense Example, No Redemption, 5 Years |
539
|
| Expense Example, No Redemption, 10 Years |
1,206
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Resilience Portfolio | Class I |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
87
|
| Expense Example, No Redemption, 3 Years |
3,049
|
| Expense Example, No Redemption, 5 Years |
5,400
|
| Expense Example, No Redemption, 10 Years |
9,369
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Resilience Portfolio | Class A |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
641
|
| Expense Example, No Redemption, 3 Years |
3,826
|
| Expense Example, No Redemption, 5 Years |
6,200
|
| Expense Example, No Redemption, 10 Years |
9,820
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Resilience Portfolio | Class C |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
198
|
| Expense Example, No Redemption, 3 Years |
3,739
|
| Expense Example, No Redemption, 5 Years |
6,291
|
| Expense Example, No Redemption, 10 Years |
9,908
|
| (MSIF - International Equity Portfolios - Classes I, A, L, C and R6) | International Resilience Portfolio | Class R6 |
|
| Prospectus [Line Items] |
|
| Expense Example, No Redemption, 1 Year |
82
|
| Expense Example, No Redemption, 3 Years |
3,505
|
| Expense Example, No Redemption, 5 Years |
6,037
|
| Expense Example, No Redemption, 10 Years |
$ 9,848
|