v3.26.1
OTHER COMPREHENSIVE INCOME - Schedule of Changes in Accumulated Other Comprehensive Income, Net of Tax (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2026
USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period $ 8,548.9
Balance at end of period 8,488.6
Total  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period (125.6)
Amounts reclassified from AOCI 2.9
Balance at end of period (122.7)
Cash Flow Hedges  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period (16.0)
Amounts reclassified from AOCI 0.9
Balance at end of period (15.1)
Pension and Postretirement Benefit Plans  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period (109.6)
Amounts reclassified from AOCI 2.0
Balance at end of period $ (107.6)