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Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation

The following table presents share-based compensation expense:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2024		2025		2024		2025
Share-based compensation expense	$10.8		$10.9		$31.9		$21.7
Tax benefit	1.7		0.9		4.0		2.0

Schedule of Company Restricted Stock Units Transactions

The following table summarizes transactions in the Company’s restricted stock units:

	Restricted Stock Units		Weighted Average Grant Date Value Per Unit
Unvested units—December 31, 2024	0.8		$147.46
Units granted	0.3		167.28
Units vested	(0.4)		136.46
Units forfeited	(0.0)		157.38
Performance condition changes	—		—
Unvested units—June 30, 2025	0.7		$160.51

Schedule of Company Stock Option Transactions

The following table summarizes transactions in the Company’s stock options:

	Stock Options		Weighted Average Exercise Price Per Option		Weighted Average Remaining Contractual Life (Years)
Unexercised options outstanding—December 31, 2024	1.7		$78.45
Options granted	—		—
Options exercised	(0.4)		74.96
Options forfeited	—		—
Options expired	(0.0)		203.22
Performance condition changes	—		—
Unexercised options outstanding—June 30, 2025	1.3		$79.20		1.3
Exercisable at June 30, 2025	1.2		$76.02		1.2

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Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
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-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Tabular disclosure of the changes in outstanding nonvested shares.

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-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.

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