Capital Stock - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Oct. 04, 2023
Class of Stock [Line Items]
Aggregate common stock and preferred stock authorized	300,000
Common stock, authorized	250,000
Common stock, par value	$ 1
Preferred Stock, authorized	50,000
Preferred Stock, outstanding	0
Dividends declared per common share	$ 1.404	$ 1.276	$ 1.160
Dividends declared	$ (111.0)	$ (104.8)	$ (95.9)
Shares issued (in shares)	8,050
Proceeds from Issuance or Sale of Equity	$ 1,314.1
Sale of Stock, Price Per Share	$ 167.00
Settlement of Tax Withholding on Employee Equity Compensation [Member]
Class of Stock [Line Items]
Shares repurchased	100	100	100
Cost of shares repurchased	$ 13.8	$ 14.2	$ 7.2
2019 Share Repurchase Program
Class of Stock [Line Items]
Shares repurchased	3,800	800	700
Cost of shares repurchased	$ 525.0	$ 104.8	$ 60.5
2023 Share Repurchase Program
Class of Stock [Line Items]
Share repurchase program				$ 1,000.0
Share Repurchase Program, Remaining Authorized, Amount	$ 455.0