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STOCKHOLDERS' EQUITY - Components of Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 16,529.6 $ 13,397.3
Other comprehensive income 24.3 3.1
Ending balance 17,207.7 14,046.4
Total    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (51.3) (12.2)
Other comprehensive income (loss) before reclassifications 18.5 2.0
Amounts reclassified from accumulated other comprehensive income 5.7 1.5
Other comprehensive income 24.2 3.5
Ending balance (27.1) (8.7)
Gains on Hedge Instruments    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 11.0 (2.5)
Other comprehensive income (loss) before reclassifications (16.0) 4.1
Amounts reclassified from accumulated other comprehensive income 5.6 1.5
Other comprehensive income (10.4) 5.6
Ending balance 0.6 3.1
Unrealized Gains (Losses) on Available-for-Sale Securities    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (14.6) (29.7)
Other comprehensive income (loss) before reclassifications 29.1 (4.3)
Amounts reclassified from accumulated other comprehensive income 0.0 0.1
Other comprehensive income 29.1 (4.2)
Ending balance 14.5 (33.9)
Foreign Currency Translation Losses    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (33.1) 19.4
Other comprehensive income (loss) before reclassifications 5.4 2.2
Amounts reclassified from accumulated other comprehensive income 0.0 0.0
Other comprehensive income 5.4 2.2
Ending balance (27.7) 21.6
Employee Benefit Plans    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (14.6) 0.6
Other comprehensive income (loss) before reclassifications 0.0 0.0
Amounts reclassified from accumulated other comprehensive income 0.1 (0.1)
Other comprehensive income 0.1 (0.1)
Ending balance $ (14.5) $ 0.5