CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total Dentsply Sirona Equity	Noncontrolling Interests
Beginning Balance at Dec. 31, 2015	$ 2,339.4	$ 1.6	$ 237.8	$ 3,591.0	$ (594.0)	$ (898.4)	$ 2,338.0	$ 1.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	231.2			230.4			230.4	0.8
Other comprehensive income	79.5				79.4		79.4	0.1
Common stock issuance related to Merger	6,256.2	1.0	6,253.4				6,254.4	1.8
Exercise of stock options	20.3		(4.5)			24.8	20.3
Tax benefit from stock options exercised	8.8		8.8				8.8
Stock based compensation expense	17.4		17.4				17.4
Funding of Employee Stock Ownership Plan	6.3		2.1			4.2	6.3
Treasury shares purchased	(600.0)					(600.0)	(600.0)
RSU distributions	(7.1)		(16.5)			9.4	(7.1)
RSU dividends	0.0		0.3	(0.3)
Cash dividends	(36.4)			(36.4)			(36.4)
Ending Balance at Jun. 30, 2016	8,315.6	2.6	6,498.8	3,784.7	(514.6)	(1,460.0)	8,311.5	4.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification on adoption of ASU No. 2016-09 (see Note 1)	(0.5)		1.0	(1.5)			(0.5)
Beginning Balance at Dec. 31, 2016	8,125.9	2.6	6,516.7	3,948.0	(705.7)	(1,647.3)	8,114.3	11.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(990.6)			(990.2)			(990.2)	(0.4)
Other comprehensive income	268.2				267.7		267.7	0.5
Exercise of stock options	45.4		6.3			39.1	45.4
Stock based compensation expense	21.9		21.9				21.9
Funding of Employee Stock Ownership Plan	6.6		3.3			3.3	6.6
Treasury shares purchased	(150.3)					(150.3)	(150.3)
RSU distributions	(12.0)		(22.1)			10.1	(12.0)
RSU dividends	0.0		0.3	(0.3)
Cash dividends	(40.4)			(40.4)			(40.4)
Ending Balance at Jun. 30, 2017	$ 7,274.2	$ 2.6	$ 6,527.4	$ 2,915.6	$ (438.0)	$ (1,745.1)	$ 7,262.5	$ 11.7