EARNINGS PER COMMON SHARE - EARNINGS PER SHARE COMPUTATION (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Basic Earnings Per Common Share Computation
Net (loss) income attributable to Dentsply Sirona	$ (95.4)	$ 36.4	$ (235.3)	$ 75.6
Weighted average common shares outstanding (in shares)	218.7	224.2	219.8	223.7
(Loss) earnings per common share - basic (in dollars per share)	$ (0.44)	$ 0.16	$ (1.07)	$ 0.34
Diluted Earnings Per Common Share Computation
Net (loss) income attributable to Dentsply Sirona	$ (95.4)	$ 36.4	$ (235.3)	$ 75.6
Weighted average common shares outstanding (in shares)	218.7	224.2	219.8	223.7
Incremental weighted average shares from assumed exercise of dilutive options from stock-based compensation awards (in shares)	0.0	1.5	0.0	1.6
Total weighted average diluted shares outstanding (in shares)	218.7	225.7	219.8	225.3
(Loss) earnings per common share - diluted (in dollars per share)	$ (0.44)	$ 0.16	$ (1.07)	$ 0.34