Long-lived Assets (Schedule of Intangible Assets Subject to Amortization, Net) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Gross carrying amount	$ 3,808.2	$ 4,027.8
Accumulated amortization	(1,976.0)	(1,974.2)
Net carrying amount	1,832.2	2,053.6
Customer relationships
Property, Plant and Equipment [Line Items]
Gross carrying amount	2,327.6	2,489.5
Accumulated amortization	(1,374.3)	(1,370.8)
Net carrying amount	953.3	1,118.7
Other
Property, Plant and Equipment [Line Items]
Gross carrying amount	1,480.6	1,538.3
Accumulated amortization	(601.7)	(603.4)
Net carrying amount	$ 878.9	$ 934.9