Segment Reporting - ADJ EBITDA Reconciliations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Interest Income (Expense), Nonoperating, Net	$ (110.4)	$ (92.9)	$ (207.1)	$ (179.2)
Depreciation and amortization	51.1	48.3	101.8	96.7
Other Nonoperating Income (Expense)	0.2	7.3	0.6	7.1
Stock-based compensation expense	19.1	8.4	35.2	18.6
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	272.0	236.6	469.2	391.0
Operating Segments
Adjusted EBITDA	651.0	525.5	1,189.9	964.9
Depreciation and amortization	42.6	39.1	84.1	78.1
Other Nonoperating Income (Expense)	(31.3)	(20.8)	(50.8)	(35.9)
Stock-based compensation expense	3.1	2.9	6.4	5.6
EES
Adjusted EBITDA	231.3	182.9	416.3	325.5
Other Nonoperating Income (Expense)	(12.6)	(7.3)	(19.4)	(11.7)
CSS
Adjusted EBITDA	272.9	198.9	496.1	357.4
Other Nonoperating Income (Expense)	(18.7)	(15.7)	(31.8)	(26.6)
UBS
Adjusted EBITDA	146.8	143.7	277.5	282.0
Other Nonoperating Income (Expense)	$ 0.0	$ 2.2	$ 0.4	$ 2.4

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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