Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Treasury Stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive (loss) income, net
Beginning balance at Dec. 31, 2022	$ 3,465.3	$ 0.0	$ 1.1	$ (131.0)	$ 1,455.1	$ 2,171.1	$ (31.0)
Increase (Decrease) in Stockholders' Equity
Cash dividends on common stock	(223.5)					(223.5)
Stock-based compensation	41.3				41.3
Repurchases of common stock from employee stock plans	(13.9)			(13.9)
Purchase of common stock	(83.9)			(83.9)
Retirement of treasury stock	0.0			218.3	(34.5)	(183.8)
Shares issued under employee stock purchase plan	16.7				16.7
Net income	761.4					761.4
Other comprehensive (loss) income	21.6						21.6
Ending balance at Dec. 31, 2023	3,985.0	0.0	1.1	(10.5)	1,478.6	2,525.2	(9.4)
Increase (Decrease) in Stockholders' Equity
Cash dividends on common stock	(249.4)					(249.4)
Stock-based compensation	41.8				41.8
Repurchases of common stock from employee stock plans	(29.5)			(29.5)
Purchase of common stock	(205.6)			(205.6)
Retirement of treasury stock	0.0		(0.1)	244.2	(19.3)	(224.8)
Shares issued under employee stock purchase plan	11.4				11.4
Net income	764.9					764.9
Other comprehensive (loss) income	(39.0)						(39.0)
Ending balance at Dec. 31, 2024	4,279.6	0.0	1.0	(1.4)	1,512.5	2,815.9	(48.4)
Increase (Decrease) in Stockholders' Equity
Cash dividends on common stock	(284.3)					(284.3)
Stock-based compensation	50.4				50.0	0.4
Repurchases of common stock from employee stock plans	(29.8)			(29.8)
Purchase of common stock	(65.3)			(65.3)
Retirement of treasury stock	0.0			95.0	(6.6)	(88.4)
Shares issued under employee stock purchase plan	9.2				9.2
Net income	1,100.0					1,100.0
Other comprehensive (loss) income	78.5						78.5
Ending balance at Dec. 31, 2025	$ 5,138.3	$ 0.0	$ 1.0	$ (1.5)	$ 1,565.1	$ 3,543.6	$ 30.1