XML 17 R4.htm IDEA: XBRL DOCUMENT v3.25.3
Statements of Consolidated Comprehensive Income (Loss) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax $ (0.3) $ (0.9) $ (0.8)  
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax 0.1 0.1 0.2 $ 0.1
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax $ (4.6) $ (0.2) $ (4.8) $ (0.4)