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STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Net actuarial gains (losses) and prior service costs arising during period, tax $ 2.0 $ (6.6) $ (2.8)
Pension and other post retirement benefit adjustments, reclassification tax 3.8 4.6 5.9
Other comprehensive income (loss), cash flow hedge, gain (loss), before reclassification, tax (1.5)    
Unrealized holding losses on cash flow hedges, amounts reclassified from other comprehensive loss, tax 1.3 1.2 1.2
Net Investment Hedging      
Gains (losses) on foreign currency translation adjustments $ (129.2) $ 53.6 $ (24.9)