v3.26.1
N-4
Apr. 27, 2026
Prospectus:  
Document Type N-4
Entity Registrant Name Jackson National Separate Account - I
Entity Central Index Key 0000927730
Entity Investment Company Type N-4
Document Period End Date Jun. 08, 2026
Amendment Flag false
C000210232 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000210232 [Member] | C000095821 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000210232 [Member] | C000029600 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000210232 [Member] | C000172890 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000210232 [Member] | C000004705 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)
C000190624 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000190624 [Member] | C000192211 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000190624 [Member] | C000067997 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000190624 [Member] | C000192221 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000190624 [Member] | C000067994 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)
C000210231 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000210231 [Member] | C000095821 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000210231 [Member] | C000029600 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000210231 [Member] | C000172890 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000210231 [Member] | C000004705 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)
C000226535 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000226535 [Member] | C000192211 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000226535 [Member] | C000067997 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000226535 [Member] | C000192221 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000226535 [Member] | C000067994 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)
C000218281 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000218281 [Member] | C000095821 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000218281 [Member] | C000029600 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000218281 [Member] | C000172890 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000218281 [Member] | C000004705 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)
C000205594 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000205594 [Member] | C000095821 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000205594 [Member] | C000029600 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000205594 [Member] | C000172890 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000205594 [Member] | C000004705 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)
C000218277 [Member]  
Item 17. Investment Options [Line Items]  
Investment Options (N-4) [Text Block] Effective April 27, 2026:
For the JNL/T. Rowe Price Mid-Cap Growth Fund, T. Rowe Price Investment Management, Inc. has been removed as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Ø    Effective June 8, 2026:

For the JNL Multi-Manager Floating Rate Income Fund, Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC have been added as sub-advisers in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Emerging Markets Equity Fund, Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with Lazard Asset Management LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Mid Cap Fund the following changes have been made:

Kayne Anderson Rudnick Investment Management, LLC has been removed as a sub-adviser and replaced with FIAM LLC in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Champlain Investment Partners, LLC has been removed as a sub-adviser and replaced with Invesco Advisers, Inc. in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

For the JNL Multi-Manager Small Cap Value Fund the following changes have been made:

WCM Investment Management LLC has been removed and replaced with FIAM LLC as a sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".

Cooke & Bieler, L.P. has been removed and replaced with Pacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”) as a sub-sub-adviser in the column titled "Fund and Manager (and Sub-Adviser, if applicable)".
C000218277 [Member] | C000095821 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Floating Rate Income Fund
Portfolio Company Subadviser [Text Block] Artisan Partners Limited Partnership and Neuberger Berman Investment Advisers LLC
C000218277 [Member] | C000029600 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Emerging Markets Equity Fund
Portfolio Company Subadviser [Text Block] Lazard Asset Management LLC
C000218277 [Member] | C000172890 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Mid Cap Fund
Portfolio Company Subadviser [Text Block] FIAM LLCInvesco Advisers, Inc
C000218277 [Member] | C000004705 [Member]  
Variable Option [Line Items]  
Portfolio Company Name [Text Block] JNL Multi-Manager Small Cap Value
Portfolio Company Subadviser [Text Block] FIAM LLCPacific Investment Management Company LLC (“PIMCO”) with Research Affiliates, LLC (“RAE”)