SIGNIFICANT ACCOUNTING POLICIES - Corrections to the Consolidated Statements Of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income	$ 84	$ 96	$ 112	$ 48	$ (92)	$ (134)	$ 292	$ (178)
Total comprehensive income	28			115			189	(155)
Comprehensive income attributable to Dentsply Sirona	28			115			189	(155)
As Previously Issued
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income	103			54			319	(182)
Total comprehensive income	47			121			216	(159)
Comprehensive income attributable to Dentsply Sirona	47			121			216	(159)
Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income	(19)			(6)			(27)	4
Total comprehensive income	(19)			(6)			(27)	4
Comprehensive income attributable to Dentsply Sirona	$ (19)			$ (6)			$ (27)	$ 4