Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

+ Details

Name:	us-gaap_MaximumLengthOfTimeHedgedInInterestRateCashFlowHedge1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580

+ Details

Name:	us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of groups of significant interest rate swaps

+ References

No definition available.

+ Details

Name:	xray_NumberOfGroupsOfSignificantInterestRateSwaps
Namespace Prefix:	xray_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	xray_DerivativesFairValueByEventAxis=xray_CurrencyJapaneseYenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	xray_DerivativesFairValueByEventAxis=xray_CurrencySwissFrancMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=xray_CrossCurrencyBasisSwapsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CurrencySwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=xray_TermLoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=xray_PrivatePlacementNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

FINANCIAL INSTRUMENTS AND DERIVATIVES - ADDITIONAL INFORMATION (Details) € in Millions	1 Months Ended	6 Months Ended
	Mar. 31, 2016 USD ($)	Jun. 30, 2016 USD ($) group	Jun. 30, 2016 JPY (¥)	Jun. 30, 2016 CHF (SFr)	Mar. 31, 2016 EUR (€)
Derivative [Line Items]
Number of groups of significant interest rate swaps \| group		2
Not Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		$ 781,600,000
Commodity Contract
Derivative [Line Items]
Maximum hedge length		18 months
Foreign Exchange Contract
Derivative [Line Items]
Maximum hedge length		18 months
Interest Rate Swap \| Currency Japanese Yen
Derivative [Line Items]
Derivative, contract term		5 years
Interest Rate Swap \| Currency Swiss Franc
Derivative [Line Items]
Derivative, contract term		5 years
Interest Rate Swap \| Not Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		$ 1,400,000
Cross Currency Basis Swaps \| Designated as Hedging Instrument
Derivative [Line Items]
Unrealized gain (loss) on derivatives before tax		(1,000,000)
Currency Swap \| Not Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount \| €					€ 316.5
Unrealized gain (loss) on derivatives before tax	$ (12,100,000)
Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		504,800,000
Cash Flow Hedging \| Commodity Contract \| Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		200,000
Cash Flow Hedging \| Foreign Exchange Contract \| Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		316,500,000
Cash Flow Hedging \| Interest Rate Swap \| Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		$ 188,100,000		SFr 65,000,000
Derivative, fixed interest rate		0.90%	0.90%	0.90%
Term Loan Agreement
Derivative [Line Items]
Aggregate Notional Amount \| ¥			¥ 12,600,000,000
Term Loan Agreement \| Cash Flow Hedging \| Interest Rate Swap
Derivative [Line Items]
Derivative, fixed interest rate		1.80%	1.80%	1.80%
Private Placement Notes \| Fair Value Hedging \| Interest Rate Swap
Derivative [Line Items]
Aggregate Notional Amount		$ 150,000,000
Derivative, fixed interest rate		4.10%	4.10%	4.10%
Senior notes		$ 250,000,000