CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Cash equivalents	$ 50.9	$ 36.2
Allowances	$ 66.6	$ 93.0
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized (in shares)	1,500,000,000.0	1,500,000,000.0
Common stock, shares issued (in shares)	770,000,000.0	761,800,000
Treasury stock (in shares)	319,900,000	319,400,000