v3.26.1
Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Changes in Accumulated Other Comprehensive Income (Loss)    
January 1 $ 12,045.8  
June 30 9,661.8  
Cash Flow Hedge    
Changes in Accumulated Other Comprehensive Income (Loss)    
January 1 (1.3) $ (5.0)
Other comprehensive income (loss) before reclassifications 0.0 0.0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 0.9 1.9
June 30 (0.4) (3.1)
Defined Benefit Pension Plans and Postemployment Arrangements    
Changes in Accumulated Other Comprehensive Income (Loss)    
January 1 (40.2) (25.5)
Other comprehensive income (loss) before reclassifications 0.0 0.0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 0.1 0.9
June 30 (40.1) (24.6)
Foreign Currency Translation    
Changes in Accumulated Other Comprehensive Income (Loss)    
January 1 (1,224.3) (1,445.4)
Other comprehensive income (loss) before reclassifications (32.8) 202.2
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 0.0 0.0
June 30 (1,257.1) (1,243.2)
Accumulated Other Comprehensive Income (Loss)    
Changes in Accumulated Other Comprehensive Income (Loss)    
January 1 (1,265.8) (1,475.9)
Other comprehensive income (loss) before reclassifications (32.8) 202.2
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent 1.0 2.8
June 30 $ (1,297.6) $ (1,270.9)