Goodwill and Other Intangible Assets, Amortization (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Intangible assets
Amortization expense	$ 145.6	$ 47.3
Amortization expense estimated for each of the next five fiscal years
Remainder of 2026	318.6
2027	387.0
2028	379.8
2029	368.9
2030	366.2
2031	359.7
Backlog
Intangible assets
Amortization expense	46.9
2025 Acquisitions \| Backlog
Intangible assets
Amortization expense		$ 10.0
2026 Acquisitions \| Backlog
Intangible assets
Amortization expense	$ 46.9

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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