CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Statement of Financial Position [Abstract]
Trade accounts receivable, allowances	$ 27.1	$ 28.1
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, authorized (in shares)	400,000,000	400,000,000
Common stock, issued (in shares)	124,126,624	124,126,624
Common stock, outstanding (in shares)	76,661,900	76,877,487
Treasury stock (in shares)	47,464,724	47,249,137