EARNINGS PER COMMON SHARE - COMPUTATION OF BASIC AND DILUTED EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Net (loss) income attributable to Dentsply Sirona	$ (1,050.0)	$ 105.4	$ (990.2)	$ 230.4
Weighted average common shares outstanding (in shares)	229.4	233.7	229.7	204.2
Incremental weighted average shares from assumed exercise of dilutive options from stock-based compensation awards (in shares)	0.0	3.7	0.0	3.7
Total weighted average diluted shares outstanding (in shares)	229.4	237.4	229.7	207.9
Earnings per common share - basic (in dollars per share)	$ (4.58)	$ 0.45	$ (4.31)	$ 1.13
Earnings per common share - diluted (in dollars per share)	$ (4.58)	$ 0.44	$ (4.31)	$ 1.11