CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 1,009.4	$ 1,042.1	$ 1,955.6	$ 1,998.2
Cost of products sold	468.6	489.3	915.1	931.3
Gross profit	540.8	552.8	1,040.5	1,066.9
Selling, general and administrative expenses	430.9	432.2	862.8	867.4
Goodwill impairment	0.0	1,085.8	0.0	1,085.8
Restructuring and other costs	42.4	188.9	62.9	199.1
Operating income (loss)	67.5	(1,154.1)	114.8	(1,085.4)
Other income and expenses:
Interest expense	8.0	9.6	16.4	18.2
Interest income	(0.2)	(0.4)	(1.3)	(1.0)
Other expense (income), net	12.1	(1.0)	(1.7)	(35.1)
Income (loss) before income taxes	47.6	(1,162.3)	101.4	(1,067.5)
Provision for income taxes	11.2	(41.3)	25.8	(27.6)
Net income (loss)	36.4	(1,121.0)	75.6	(1,039.9)
Less: Net income attributable to noncontrolling interests	0.0	1.0	0.0	0.9
Net income (loss) attributable to Dentsply Sirona	$ 36.4	$ (1,122.0)	$ 75.6	$ (1,040.8)
Earnings Per Share [Abstract]
Basic (in dollars per share)	$ 0.16	$ (4.98)	$ 0.34	$ (4.60)
Diluted (in dollars per share)	$ 0.16	$ (4.98)	$ 0.34	$ (4.60)
Weighted average common shares outstanding:
Basic (in shares)	224.2	225.2	223.7	226.2
Diluted (in shares)	225.7	225.2	225.3	226.2