Accumulated Other Comprehensive Income - Changes in Components of Accumulated Other Comprehensive Income, Net of Tax (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)
Other Comprehensive Income Loss [Line Items]
Stockholders equity, beginning balance	$ 12,697.7
Stockholders equity, ending balance	12,673.3
Cash Flow Hedges [Member]
Other Comprehensive Income Loss [Line Items]
Stockholders equity, beginning balance	36.6
AOCI before reclassifications	20.0
Reclassifications to statements of earnings	(6.1)
Stockholders equity, ending balance	50.5
Foreign Currency Translation [Member]
Other Comprehensive Income Loss [Line Items]
Stockholders equity, beginning balance	(169.2)
AOCI before reclassifications	0.3
Stockholders equity, ending balance	(168.9)
Defined Benefit Plan Items [Member]
Other Comprehensive Income Loss [Line Items]
Stockholders equity, beginning balance	(73.1)
Reclassifications to statements of earnings	1.1
Stockholders equity, ending balance	(72.0)
Total AOCI [Member]
Other Comprehensive Income Loss [Line Items]
Stockholders equity, beginning balance	(205.7)
AOCI before reclassifications	20.3
Reclassifications to statements of earnings	(5.0)
Stockholders equity, ending balance	$ (190.4)