Segment Information - Assets and Goodwill (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets:	$ 8,978.7	$ 9,135.9
Goodwill:	3,424.7	3,445.8	$ 3,435.7	$ 3,431.3
Other intangibles:	3,805.2	3,915.9	$ 4,218.6	$ 4,320.1
Other long-lived assets:	1,123.3	1,100.7
Total long-lived assets	8,353.2	8,462.4
Deferred income tax	16.2	17.2
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets:	7,491.7	7,643.3
Goodwill:	2,929.6	2,929.6
Other intangibles:	3,367.6	3,451.5
Other long-lived assets:	909.0	891.6
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets:	1,487.0	1,492.6
Goodwill:	495.1	516.2
Other intangibles:	437.6	464.4
Other long-lived assets:	$ 214.3	$ 209.1