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EARNINGS PER COMMON SHARE - COMPUTATION OF BASIC AND DILUTED (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share [Abstract]                      
Net income attributable to Dentsply Sirona $ 119 $ 84 $ 96 $ 112 $ 105 $ 47 $ (91) $ (134) $ 411 $ (73) $ 256
Shares                      
Weighted average common shares outstanding (in shares)                 218.4 219.2 223.1
Earnings (loss) per common share - basic (in dollars per share) $ 0.55 $ 0.39 $ 0.44 $ 0.51 $ 0.48 $ 0.22 $ (0.42) $ (0.61) $ 1.88 $ (0.33) $ 1.15
Incremental weighted average shares from assumed exercise of dilutive options from stock-based compensation awards (in shares)                 1.8 0.0 1.3
Total weighted average diluted shares outstanding (in shares)                 220.2 219.2 224.4
(Loss) earnings per common share                      
Earnings (loss) per common share - diluted (in dollars per share) $ 0.54 $ 0.38 $ 0.43 $ 0.51 $ 0.48 $ 0.22 $ (0.42) $ (0.61) $ 1.87 $ (0.33) $ 1.14