BUSINESS COMBINATIONS - PURCHASE PRICE ALLOCATION (Details) - USD ($) $ in Millions	Dec. 31, 2016	Feb. 29, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Goodwill	$ 5,952.0		$ 1,987.6	$ 2,089.3
Sirona Dental Systems Inc
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Cash and cash equivalents		$ 522.3
Trade receivables		143.0
Inventory		220.7
Prepaid expenses and other current assets		111.1
Property, plant and equipment		237.1
Identifiable intangible assets		2,435.0
Goodwill		3,776.8
Other long-term assets		10.7
Total assets		7,456.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Accounts payable		68.0
Other current liabilities		197.9
Debt		57.5
Deferred income taxes		771.6
Other long-term liabilities		95.3
Total liabilities		1,190.3
Noncontrolling interest		10.2
Total identifiable net assets		$ 6,256.2