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Changes in Accumulated Other Comprehensive Loss by Component - Summary of Changes in AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period $ 10,204.7 $ 9,917.3 $ 9,686.8 $ 9,215.8 $ 8,984.7 $ 8,979.7 $ 9,686.8 $ 8,979.7
Other comprehensive income (loss) before reclassifications             16.7  
Amounts reclassified from accumulated other comprehensive loss             (7.1)  
Net current period other comprehensive income (loss) 4.2 2.6 2.8 3.0 (0.1) 1.1 9.6 4.0
Balance at end of period 10,332.4 $ 10,204.7 9,917.3 $ 9,490.5 $ 9,215.8 $ 8,984.7 10,332.4 $ 9,490.5
Total                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     (12.1)       (12.1)  
Balance at end of period (2.5)           (2.5)  
Cash Flow Hedges                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     (16.3)       (16.3)  
Other comprehensive income (loss) before reclassifications             16.6  
Amounts reclassified from accumulated other comprehensive loss             (7.1)  
Net current period other comprehensive income (loss)             9.5  
Balance at end of period (6.8)           (6.8)  
Defined Benefit Pension Items                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     9.2       9.2  
Other comprehensive income (loss) before reclassifications             0.2  
Amounts reclassified from accumulated other comprehensive loss             0.0  
Net current period other comprehensive income (loss)             0.2  
Balance at end of period 9.4           9.4  
Foreign Currency Translation                
AOCI Attributable to Parent, Net of Tax [Roll Forward]                
Balance at beginning of period     $ (5.0)       (5.0)  
Other comprehensive income (loss) before reclassifications             (0.1)  
Amounts reclassified from accumulated other comprehensive loss             0.0  
Net current period other comprehensive income (loss)             (0.1)  
Balance at end of period $ (5.1)           $ (5.1)