CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Total net sales	$ 894,800,000	$ 962,100,000	$ 2,259,700,000	$ 2,917,700,000
Cost of products sold	452,500,000	448,100,000	1,173,500,000	1,363,200,000
Gross profit	442,300,000	514,000,000.0	1,086,200,000	1,554,500,000
Selling, general, and administrative expenses	341,900,000	399,300,000	1,014,500,000	1,262,100,000
Goodwill impairment	0	0	156,600,000	0
Restructuring and other costs	18,700,000	5,200,000	62,500,000	68,100,000
Operating income (loss)	81,700,000	109,500,000	(147,400,000)	224,300,000
Other income and expenses:
Interest expense	14,500,000	6,600,000	33,500,000	23,000,000.0
Interest income	(400,000)	(700,000)	(1,800,000)	(2,000,000.0)
Other expense (income), net	900,000	(2,900,000)	3,800,000	(4,600,000)
Income (loss) before income taxes	66,700,000	106,500,000	(182,900,000)	207,900,000
Provision (benefit) for income taxes	12,500,000	21,500,000	(1,300,000)	47,300,000
Net income (loss)	54,200,000	85,000,000.0	(181,600,000)	160,600,000
Less: Net income (loss) attributable to noncontrolling interest	400,000	0	(100,000)	0
Net income (loss) attributable to Dentsply Sirona	$ 53,800,000	$ 85,000,000.0	$ (181,500,000)	$ 160,600,000
Net income (loss) per common share attributable to Dentsply Sirona:
Basic (in dollars per share)	$ 0.25	$ 0.38	$ (0.83)	$ 0.72
Diluted (in dollars per share)	$ 0.25	$ 0.38	$ (0.83)	$ 0.71
Weighted average common shares outstanding:
Basic (in shares)	218.5	223.1	219.4	223.5
Diluted (in shares)	219.2	224.9	219.4	225.2