SIGNIFICANT ACCOUNTING POLICIES - Corrections to the Consolidated Statements Of Operations (Details) - USD ($) $ / shares in Units, $ 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 sales	$ 1,040			$ 883			$ 3,128	$ 2,263
Cost of products sold	471			451			1,385	1,174
Gross profit	569			432			1,743	1,089
Selling, general, and administrative expenses	395			313			1,174	929
Research and development expenses	39			29			122	85
Operating income	132			72			436	(144)
Interest expense, net	14			14			43	31
Other expense (income), net	5			1			4	4
Income (loss) before income taxes	113			57			389	(179)
Provision (benefit) for income taxes	29			9			97	(1)
Net income (loss)	84	$ 96	$ 112	48	$ (92)	$ (134)	292	(178)
Net income (loss) attributable to Dentsply Sirona	$ 84			$ 47			$ 292	$ (178)
Net income (loss) per common share attributable to Dentsply Sirona:
Earnings (loss) per common share - basic (in dollars per share)	$ 0.39			$ 0.22			$ 1.34	$ (0.81)
Earnings (loss) per common share - diluted (in dollars per share)	$ 0.38			$ 0.22			$ 1.32	$ (0.81)
As Previously Issued
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales	$ 1,069			$ 895			$ 3,163	$ 2,260
Cost of products sold	478			453			1,395	1,174
Gross profit	591			442			1,768	1,086
Selling, general, and administrative expenses	394			315			1,177	935
Research and development expenses	35			27			112	79
Operating income	159			82			468	(147)
Interest expense, net	13			14			43	32
Other expense (income), net	8			1
Income (loss) before income taxes	138			67			421	(183)
Provision (benefit) for income taxes	35			13			102	(1)
Net income (loss)	103			54			319	(182)
Net income (loss) attributable to Dentsply Sirona	$ 103			$ 53			$ 319	$ (182)
Net income (loss) per common share attributable to Dentsply Sirona:
Earnings (loss) per common share - basic (in dollars per share)	$ 0.47			$ 0.25			$ 1.46	$ (0.83)
Earnings (loss) per common share - diluted (in dollars per share)	$ 0.47			$ 0.25			$ 1.45	$ (0.83)
Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net sales	$ (29)			$ (12)			$ (35)	$ 3
Cost of products sold	(7)			(2)			(10)	0
Gross profit	(22)			(10)			(25)	3
Selling, general, and administrative expenses	1			(2)			(3)	(6)
Research and development expenses	4			2			10	6
Operating income	(27)			(10)			(32)	3
Interest expense, net	1			0			0	(1)
Other expense (income), net	(3)			0
Income (loss) before income taxes	(25)			(10)			(32)	4
Provision (benefit) for income taxes	(6)			(4)			(5)	0
Net income (loss)	(19)			(6)			(27)	4
Net income (loss) attributable to Dentsply Sirona	$ (19)			$ (6)			$ (27)	$ 4
Net income (loss) per common share attributable to Dentsply Sirona:
Earnings (loss) per common share - basic (in dollars per share)	$ (0.08)			$ (0.03)			$ (0.12)	$ 0.02
Earnings (loss) per common share - diluted (in dollars per share)	$ (0.09)			$ (0.03)			$ (0.13)	$ 0.02