Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 24.6	$ 12.9
Preferred stock, shares authorized (in shares)	200,000,000.0	200,000,000.0
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, share issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, shares authorized (in shares)	2,000,000,000.0	2,000,000,000.0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	169,100,000	168,700,000
Common stock, shares outstanding (in shares)	169,100,000	168,700,000