Credit Facility, Maximum Swing Line Borrowings

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- 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.

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- Definition

Net fair value of all derivative instruments designated as fair value hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Period Type:	instant

- Definition

Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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DEBT - SENIOR NOTES (Details) - USD ($) $ in Millions	12 Months Ended
DEBT - SENIOR NOTES (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Jan. 30, 2015	Dec. 19, 2014	Nov. 01, 2013	Aug. 23, 2012
Debt Instrument [Line Items]
Credit Facility, Maximum Swing Line Borrowings				$ 100.0
Senior Notes, Noncurrent	$ 2,900.0		$ 2,900.0		$ 700.0
Long-term debt, less current portion	$ 5,992.1	$ 2,682.7
Debt Instrument, Basis Spread on Variable Rate	2.298%
Fair Value Hedges, Net	$ 18.5
Senior notes due 2045 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent			$ 900.0
Interest rate (in hundredths)			4.70%
Long-term debt, less current portion	900.0	0.0
Senior notes due 2018 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent					$ 400.0
Interest rate (in hundredths)					2.50%
Long-term debt, less current portion	400.0	400.0
Senior notes due 2023 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent					$ 300.0
Interest rate (in hundredths)					4.00%
Long-term debt, less current portion	300.0	300.0
Covance senior notes due 2020 [Domain]
Debt Instrument [Line Items]
Interest rate (in hundredths)			2.625%
Senior notes due 2020 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent	$ 500.0	0.0	$ 500.0
Interest rate (in hundredths)	4.625%		2.625%
Long-term debt, less current portion	$ 621.6	618.5
Senior notes due 2017 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)						2.20%
Long-term debt, less current portion	500.0	500.0
Senior notes due 2022 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent	500.0	0.0	$ 500.0
Interest rate (in hundredths)			3.20%			3.75%
Long-term debt, less current portion	500.0	$ 500.0
Senior notes due 2025 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent			$ 1,000.0
Interest rate (in hundredths)			3.60%
Senior notes due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, less current portion	600.0
Senior notes due 2015 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)		5.625%
Periodic payments, frequency		semi-annually
Excluding Underwriting Discounts & Other Fees [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent			$ 2,870.2
Fair Value, Inputs, Level 2 [Member]
Debt Instrument [Line Items]
Fair Value Hedges, Net	$ 21.6