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JOHNSON CONTROLS, INC. SAVINGS AND INVESTMENT MASTER TRUST - Narrative (Details) - EBP 001 - $ / shares
Dec. 31, 2025
Dec. 31, 2024
EBP, Employer, Common Stock Fund    
EBP, Master Trust [Line Items]    
Number of shares held in investment 509,232 475,037
Unit value (in dollars per share) $ 25.05 $ 16.61
EBP, Nonemployer, Common Stock Fund    
EBP, Master Trust [Line Items]    
Number of shares held in investment   21,624
Unit value (in dollars per share)   $ 4.19