CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (139.9)	$ 39.2
Other comprehensive loss, net of tax:
Foreign currency translation loss	(118.4)	(61.0)
Net gain on derivative financial instruments	4.6	1.7
Pension liability gain	1.6	0.9
Total other comprehensive loss, net of tax	(112.2)	(58.4)
Total comprehensive loss	(252.1)	(19.2)
Less: Comprehensive income attributable to noncontrolling interests	0.3	0.3
Total comprehensive loss attributable to Dentsply Sirona	$ (252.4)	$ (19.5)