CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 1,042.1	$ 992.7	$ 1,998.2	$ 1,893.2
Cost of products sold	489.3	448.5	931.3	857.0
Gross profit	552.8	544.2	1,066.9	1,036.2
Selling, general and administrative expenses	432.2	417.6	867.4	822.3
Goodwill impairment	1,085.8	1,092.9	1,085.8	1,092.9
Restructuring and other costs	188.9	81.7	199.1	84.8
Operating loss	(1,154.1)	(1,048.0)	(1,085.4)	(963.8)
Other income and expenses:
Interest expense	9.6	9.6	18.2	18.9
Interest income	(0.4)	(0.6)	(1.0)	(1.3)
Other expense (income), net	(1.0)	7.8	(35.1)	6.8
Loss before income taxes	(1,162.3)	(1,064.8)	(1,067.5)	(988.2)
Provision (benefit) for income taxes	(41.3)	(14.5)	(27.6)	2.4
Net loss	(1,121.0)	(1,050.3)	(1,039.9)	(990.6)
Less: Net income (loss) attributable to noncontrolling interests	1.0	(0.3)	0.9	(0.4)
Net loss attributable to Dentsply Sirona	$ (1,122.0)	$ (1,050.0)	$ (1,040.8)	$ (990.2)
Net loss per common share attributable to Dentsply Sirona:
Basic (in dollars per share)	$ (4.98)	$ (4.58)	$ (4.60)	$ (4.31)
Diluted (in dollars per share)	$ (4.98)	$ (4.58)	$ (4.60)	$ (4.31)
Weighted average common shares outstanding:
Basic (in shares)	225.2	229.4	226.2	229.7
Diluted (in shares)	225.2	229.4	226.2	229.7
Dividends declared per common share (in dollars per share)	$ 0.0875	$ 0.0875	$ 0.1750	$ 0.1750