Segment Reporting (Income From Operations And Total Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	$ 1,265.4	$ 1,001.4	$ 599.7
Amortization of intangibles	(60.1)	(61.1)	(59.5)
Impairment charges	(36.0)	0.0	(20.0)
Total assets	10,103.7	9,182.1	8,504.2
Cash and cash equivalents	789.5	889.1
Investments in affiliates	436.9	413.5
Intangible assets, net	364.4	392.2
Goodwill	1,310.8	1,280.8	1,306.5	$ 1,298.3
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	1,553.7	1,239.6	870.4
Total assets	6,176.2	5,210.1	4,514.4
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Corporate expenses	(153.4)	(135.2)	(134.7)
Amortization of intangibles	(60.1)	(61.1)	(59.5)
Stock compensation expense	(32.7)	(26.6)	(36.8)
Restructuring expenses	(6.1)	(15.3)	(19.7)
Cash and cash equivalents	789.5	889.1	1,119.1
Investments in affiliates	436.9	413.5	442.7
Deferred tax assets, other current and noncurrent assets	1,025.9	996.4	665.9
Intangible assets, net	364.4	392.2	455.6
Goodwill	$ 1,310.8	$ 1,280.8	$ 1,306.5