Segment Reporting - ADJ EBITDA Reconciliations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Interest Income (Expense), Nonoperating, Net	$ (92.9)	$ (98.8)	$ (179.2)	$ (193.2)
Depreciation and amortization	48.3	46.1	96.7	91.6
Other Nonoperating Income (Expense)	7.3	95.9	7.1	74.3
Stock-based compensation expense	8.4	2.7	18.6	12.8
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	236.6	320.6	391.0	467.6
Operating Segments
Adjusted EBITDA	525.5	519.2	964.9	981.6
Depreciation and amortization	39.1	37.0	78.1	73.2
Other Nonoperating Income (Expense)	(20.8)	84.2	(35.9)	58.9
Stock-based compensation expense	2.9	3.5	5.6	7.0
EES
Adjusted EBITDA	182.9	190.2	325.5	351.9
Depreciation and amortization	12.4	11.3	24.6	22.4
Other Nonoperating Income (Expense)	(7.3)	(3.3)	(11.7)	(8.3)
CSS
Adjusted EBITDA	198.9	155.5	357.4	286.8
Depreciation and amortization	19.1	18.3	38.1	36.4
Other Nonoperating Income (Expense)	(15.7)	(15.7)	(26.6)	(35.2)
UBS
Adjusted EBITDA	143.7	173.5	282.0	342.9
Depreciation and amortization	7.6	7.4	15.4	14.4
Other Nonoperating Income (Expense)	$ 2.2	$ 103.2	$ 2.4	$ 102.4

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