CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total		Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock, Common
Balance at Beginning of Year at Dec. 31, 2022			$ 30.8	$ 2,441.0	$ (3,448.3)	$ 13,141.3	$ (3,429.8)
Increase (Decrease) in Stockholders' Equity
Common Stock Activity			0.1	21.3
Cost of Shares Repurchased	$ (252.0)	[1]		0.0			(252.0)
Other Comprehensive Income	140.3				140.3
Net Income	1,283.8					1,283.8
Dividends to Stockholders (per common share: $1.76; $1.57; $1.39)						(277.1)
Treasury Stock, Retired, Cost Method, Amount	(3,642.5)		(11.5)	(914.5)		(2,716.5)	(3,642.5)
Balance at End of Year at Dec. 31, 2023	9,651.4		19.4	1,547.8	(3,308.0)	11,431.5	(39.3)
Increase (Decrease) in Stockholders' Equity
Common Stock Activity			0.1	22.1
Cost of Shares Repurchased	(979.3)	[1]		(80.3)			(899.0)
Other Comprehensive Income	784.3				784.3
Net Income	1,779.1					1,779.1
Dividends to Stockholders (per common share: $1.76; $1.57; $1.39)						(296.6)
Treasury Stock, Retired, Cost Method, Amount			0.0	0.0		0.0	0.0
Balance at End of Year at Dec. 31, 2024	10,961.1		19.5	1,489.6	(2,523.7)	12,914.0	(938.3)
Increase (Decrease) in Stockholders' Equity
Common Stock Activity			0.1	23.1
Cost of Shares Repurchased	(1,011.7)	[1]		80.3			(1,092.0)
Other Comprehensive Income	715.2				715.2
Net Income	738.5					738.5
Dividends to Stockholders (per common share: $1.76; $1.57; $1.39)						(307.2)
Treasury Stock, Retired, Cost Method, Amount			0.0	0.0		0.0	0.0
Balance at End of Year at Dec. 31, 2025	$ 11,119.1		$ 19.6	$ 1,593.0	$ (1,808.5)	$ 13,345.3	$ (2,030.3)

[1] Includes $1.9 million of commissions for the year ended December 31, 2025, a de minimis amount of commissions for the year ended December 31, 2024, and $0.1 million of commissions for the year ended December 31, 2023. Also includes $9.8 million, $8.3 million, and $1.9 million of excise tax for the years ended December 31, 2025, 2024, and 2023 respectively. For the year ended December 31, 2024, includes $80.3 million related to shares which settled in February 2025 in connection with the November 2024 ASR.