v3.24.0.1
Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period $ 9,686.8 $ 8,979.7 $ 8,488.8
Other comprehensive income (loss) before reclassifications 9.7 1.8 (5.8)
Amounts reclassified from accumulated other comprehensive loss (9.7) 0.7 3.6
Net current-period other comprehensive income (loss) 0.0 2.5 (2.2)
Balance at end of period 10,543.5 9,686.8 8,979.7
Total      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (12.1) (14.6) (12.4)
Balance at end of period (12.1) (12.1) (14.6)
Cash Flow Hedges      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (16.3) (25.8) (30.4)
Other comprehensive income (loss) before reclassifications 14.0 8.4 0.0
Amounts reclassified from accumulated other comprehensive loss (9.3) 1.1 4.6
Net current-period other comprehensive income (loss) 4.7 9.5 4.6
Balance at end of period (11.6) (16.3) (25.8)
Defined Benefit Pension Plan      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period 9.2 11.2 18.0
Other comprehensive income (loss) before reclassifications 0.1 (1.6) (5.8)
Amounts reclassified from accumulated other comprehensive loss (0.4) (0.4) (1.0)
Net current-period other comprehensive income (loss) (0.3) (2.0) (6.8)
Balance at end of period 8.9 9.2 11.2
Foreign Currency Translation      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (5.0) 0.0 0.0
Other comprehensive income (loss) before reclassifications (4.4) (5.0) 0.0
Amounts reclassified from accumulated other comprehensive loss 0.0 0.0 0.0
Net current-period other comprehensive income (loss) (4.4) (5.0) 0.0
Balance at end of period $ (9.4) $ (5.0) $ 0.0