CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 54.2	$ 85.0	$ (181.6)	$ 160.6
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	84.8	(127.5)	40.0	(144.8)
Net (loss) gain on derivative financial instruments	(19.3)	20.1	(22.2)	12.0
Pension liability gain	1.6	0.9	4.7	2.7
Total other comprehensive income (loss), net of tax	67.1	(106.5)	22.5	(130.1)
Total comprehensive income (loss)	121.3	(21.5)	(159.1)	30.5
Less: Comprehensive income attributable to noncontrolling interests	0.0	0.0	0.4	0.3
Total comprehensive income (loss) attributable to Dentsply Sirona	$ 121.3	$ (21.5)	$ (159.5)	$ 30.2