Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Trade accounts receivable, allowance	$ 25.3	$ 19.0
Property, plant and equipment, accumulated depreciation and amortization	520.5	454.4
Other intangibles, net of accumulated amortization	$ 1,660.8	$ 1,482.1
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000.0	1,000.0
Common stock, shares issued	195.5	193.5
Common stock, shares outstanding	190.3	188.7
Treasury stock, shares	5.2	4.8