| TRS Reports Fifth Consecutive Year of Funded Status Improvement         | 
                                                                      October 24, 2025         | 
          
      
                                                                      | Remembering Albert "Al" Llorens         | 
                                                                      September 28, 2025         | 
          
      
                                                                      | Teachers' Retirement System of the State of Illinois Focused on Future Growth         | 
                                                                      August 1, 2025         | 
          
      
                                                                      | Summer 2025  - Topics & Report Newsletter         | 
                                                                      July 1, 2025         | 
          
      
                                                                      | TRS Celebrates 20th Anniversary of Emerging Manager Program at Annual Opportunity Forum         | 
                                                                      June 20, 2025         | 
          
      
                                                                      | TRS Announces Board of Trustees Leadership Transition         | 
                                                                      June 18, 2025         | 
          
      
                                                                      | TRS Issues RFI for Comprehensive Rebranding         | 
                                                                      June 13, 2025         | 
          
      
                                                                      | Teachers' Retirement System of the State of Illinois Issues RFP for Pension Administration System         | 
                                                                      May 28, 2025         | 
          
      
                                                                      | Teachers' Retirement System of the State of Illinois Honored with 2025 NCPERS Champions Award         | 
                                                                      May 21, 2025         | 
          
      
                                                                      | A Statement from TRS and the Board of Trustees on the Tragedy in Chatham          | 
                                                                      April 29, 2025         | 
          
      
                                                                      | Spring 2025 - Topics & Report Newsletter         | 
                                                                      April 21, 2025         | 
          
      
                                                                      | Gov. Pritzker's FY26 Budget Proposal Strengthens Teachers' Retirement Security          | 
                                                                      February 25, 2025         | 
          
      
                                                                      | Winter 2025 - Topics & Report Newsletter         | 
                                                                      January 29, 2025         | 
          
      
                                                                      | TRS Seeks Global Products for Public Equity Portfolio         | 
                                                                      January 23, 2025         | 
          
      
                                                                      | Social Security Fairness Act Signed into Law         | 
                                                                      January 6, 2025         | 
          
      
                                                                      | Celebrating 50 Years: TRS Marks a Half-century of Service at Northern Location         | 
                                                                      December 17, 2024         | 
          
      
                                                                      | Positive Financial Trajectory: TRS Funded Status Improves         | 
                                                                      October 25, 2024         | 
          
      
                                                                      | Members of TRS Board of Trustees Reappointed         | 
                                                                      August 20, 2024         | 
          
      
                                                                      | TRS Issues RFP Seeking Private Equity Investment Consulting Services         | 
                                                                      August 7, 2024         | 
          
      
                                                                      | TRS Issues RFP Seeking Real Estate and Real Asset Investment Consulting Services         | 
                                                                      July 17, 2024         | 
          
      
                                                                      | Summer 2024 - Topics & Report Newsletter         | 
                                                                      July 8, 2024         | 
          
      
                                                                      | TRS Investment Approach Prioritizes Member Asset Protection         | 
                                                                      June 18, 2024         | 
          
      
                                                                      | Spring 2024 - Topics & Report Newsletter         | 
                                                                      April 12, 2024         | 
          
      
                                                                      | Governor Pritzker's FY 2025 Budget is a Commitment to TRS Members         | 
                                                                      March 1, 2024         | 
          
      
                                                                      | Winter 2024 - Topics & Report Newsletter         | 
                                                                      January 8, 2024         |