CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net sales	$ 3,993.4	$ 3,745.3	$ 2,674.3
Cost of products sold	1,804.9	1,744.4	1,157.1
Gross profit	2,188.5	2,000.9	1,517.2
Selling, general and administrative expenses	1,674.7	1,523.0	1,077.3
Goodwill impairment	1,650.9	0.0	0.0
Restructuring and other costs	425.2	23.2	64.7
Operating (loss) income	(1,562.3)	454.7	375.2
Other income and expenses:
Interest expense	38.3	35.9	55.9
Interest income	(2.4)	(2.0)	(2.2)
Other expense (income), net	5.3	(20.1)	(8.2)
(Loss) income before income taxes	(1,603.5)	440.9	329.7
(Benefit) provision for income taxes	(53.2)	9.5	77.0
Equity in net loss of unconsolidated affiliated company	0.0	0.0	(1.6)
Net (loss) income	(1,550.3)	431.4	251.1
Less: Net (loss) income attributable to noncontrolling interests	(0.3)	1.5	(0.1)
Net (loss) income attributable to Dentsply Sirona	$ (1,550.0)	$ 429.9	$ 251.2
Net (loss) income per common share attributable to Dentsply Sirona:
Basic (in dollars per share)	$ (6.76)	$ 1.97	$ 1.79
Diluted (in dollars per share)	$ (6.76)	$ 1.94	$ 1.76
Weighted average common shares outstanding:
Basic (in shares)	229.4	218.0	140.0
Diluted (in shares)	229.4	221.6	142.5
Dividends declared per common share (in dollars per share)	$ 0.35	$ 0.31	$ 0.29