EARNINGS PER COMMON SHARE - EARNINGS PER SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic Earnings Per Common Share Computation
Net (loss) income attributable to Dentsply Sirona	$ (139.9)	$ 39.2
Weighted average common shares outstanding (in shares)	220.9	223.3
(Loss) earnings per common share - basic (in dollars per share)	$ (0.63)	$ 0.18
Diluted Earnings Per Common Share Computation
Net (loss) income attributable to Dentsply Sirona	$ (139.9)	$ 39.2
Weighted average common shares outstanding (in shares)	220.9	223.3
Incremental weighted average shares from assumed exercise of dilutive options from stock-based compensation awards (in shares)	0.0	1.7
Total weighted average diluted shares outstanding (in shares)	220.9	225.0
(Loss) earnings per common share - diluted (in dollars per share)	$ (0.63)	$ 0.17