Global Equity Fund Performance Management - Class A C I R2 R4 R6 [Member] - Global Equity Fund	Aug. 31, 2024
Prospectus [Line Items]
Performance Narrative [Text Block]	The following information illustrates the variability of the fund’s returns and provides some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compared with a broad-based market index.Past performance (before and after taxes) does not indicate future results. The MSCI World Value Index shows how the fund’s performance compares against the returns of similar investments. All figures assume dividend reinvestment. Performance information is updated daily, monthly, and quarterly and may be obtained at our website, jhinvestments.com, or by calling 800-225-5291 (Class A and Class C), Monday to Thursday, 8:00 a.m.—7:00 p.m., and Friday, 8:00 a.m.—6:00 p.m., Eastern time, or 888-972-8696 (Class I, Class R2, Class R4 and Class R6) between 8:30 a.m. and 5:00 p.m., Eastern time, on most business days.
Performance Past Does Not Indicate Future [Text]	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">Past performance (before and after taxes) does not indicate future results.</span>
Performance Information Illustrates Variability of Returns [Text]	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">The following information illustrates the variability of the fund’s returns and provides some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compared with a broad-based market index.</span>
Performance Table Heading	<span style="color:#000000;font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Average annual total returns (%)—as of 12/31/2023</span>
Performance Availability Website Address [Text]	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">jhinvestments.com</span>
Performance Availability Phone [Text]	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">800-225-5291 (Class A and Class C), Monday to Thursday, 8:00</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;"> a.m.</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">—7:00</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;"> p.m.</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">, and Friday, 8:00</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;"> a.m.</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">—6:00</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;"> p.m.</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">, Eastern time, or 888-972-8696 (Class I, Class R2, Class R4 and Class R6) between 8:30</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;"> a.m.</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;"> and 5:00</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;"> p.m.</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">, Eastern time, on most business days.</span>

Global Equity Fund Performance Management - Class A C I R2 R4 R6 [Member] - Global Equity Fund

Aug. 31, 2024

The following information illustrates the variability of the fund’s returns and provides some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compared with a broad-based market index.Past performance (before and after taxes) does not indicate future results. The MSCI World Value Index shows how the fund’s performance compares against the returns of similar investments. All figures assume dividend reinvestment. Performance information is updated daily, monthly, and quarterly and may be obtained at our website, jhinvestments.com, or by calling 800-225-5291 (Class A and Class C), Monday to Thursday, 8:00 a.m.—7:00 p.m., and Friday, 8:00 a.m.—6:00 p.m., Eastern time, or 888-972-8696 (Class I, Class R2, Class R4 and Class R6) between 8:30 a.m. and 5:00 p.m., Eastern time, on most business days.

Performance Past Does Not Indicate Future [Text]

Past performance (before and after taxes) does not indicate future results.

Performance Information Illustrates Variability of Returns [Text]

The following information illustrates the variability of the fund’s returns and provides some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compared with a broad-based market index.

Performance Table Heading

Average annual total returns (%)—as of 12/31/2023

Performance Availability Website Address [Text]

jhinvestments.com

Performance Availability Phone [Text]

800-225-5291 (Class A and Class C), Monday to Thursday, 8:00 a.m.—7:00 p.m., and Friday, 8:00 a.m.—6:00 p.m., Eastern time, or 888-972-8696 (Class I, Class R2, Class R4 and Class R6) between 8:30 a.m. and 5:00 p.m., Eastern time, on most business days.