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Accumulated Other Comprehensive Income (Loss) - After-Tax Components of and Changes in Accumulated Other Comprehensive (Loss) Income (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance $ 2,952.4 $ 3,043.5 $ 3,064.8 $ 2,775.5
Ending Balance 3,030.1 3,054.6 3,030.1 3,054.6
Foreign Currency Adjustments [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (12.8) 25.0 3.3 7.2
Amounts classified into accumulated other comprehensive (loss) income (54.4) (14.9) (70.5) 2.9
Amounts reclassified from accumulated other comprehensive (loss) income 0.0 0.0 0.0 0.0
Net current period other comprehensive (loss) income (54.4) (14.9) (70.5) 2.9
Ending Balance (67.2) 10.1 (67.2) 10.1
Derivative Hedging Gain (Loss) [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance 71.5 3.3 2.9 4.2
Amounts classified into accumulated other comprehensive (loss) income 24.9 1.7 97.3 1.4
Amounts reclassified from accumulated other comprehensive (loss) income 0.7 (1.2) (3.1) (1.8)
Net current period other comprehensive (loss) income 25.6 0.5 94.2 (0.4)
Ending Balance 97.1 3.8 97.1 3.8
Defined Benefit Plan Adjustments [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (30.9) (66.7) (30.8) (66.5)
Amounts classified into accumulated other comprehensive (loss) income (1.5) (2.4) (1.6) (2.6)
Amounts reclassified from accumulated other comprehensive (loss) income 0.3 1.4 0.3 1.4
Net current period other comprehensive (loss) income (1.2) (1.0) (1.3) (1.2)
Ending Balance (32.1) (67.7) (32.1) (67.7)
Accumulated Other Comprehensive Loss [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance 27.8 (38.4) (24.6) (55.1)
Amounts classified into accumulated other comprehensive (loss) income (31.0) (15.6) 25.2 1.7
Amounts reclassified from accumulated other comprehensive (loss) income 1.0 0.2 (2.8) (0.4)
Net current period other comprehensive (loss) income (30.0) (15.4) 22.4 1.3
Ending Balance $ (2.2) $ (53.8) $ (2.2) $ (53.8)