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Debt Covenant Requirement for Number of Consecutive Fiscal Quarters

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Debt to EBITDA (Leverage) Ratio

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Revolving Credit Facility covenant terms ceiling

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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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.

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Description of the fees for amounts available, but unused under the credit facility.

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Fair value of the amount outstanding under the credit facility.

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Date the credit facility first became available, in CCYY-MM-DD format.

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Disclosure of timing of required repayments, sinking fund requirements, and other redeemable securities at fixed or determinable prices and dates in the five years immediately following the date of the latest balance sheet presented in the financial statements, and the amount thereafter to fully repay the principal of long-term debt. These disclosures may be made either on an individual debt or security basis, by type of debt or security basis, or on a combined basis.

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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.

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Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements.

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DEBT (Long-term debt) (Table) (Details) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
DEBT (Long-term debt) (Table) (Details) $ in Millions	Dec. 31, 2014 USD ($)	Sep. 30, 2015 USD ($) Quarters	Dec. 31, 2014 USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Feb. 19, 2015 USD ($)	Feb. 18, 2015	Jan. 30, 2015 USD ($)	Dec. 19, 2014 USD ($)	Nov. 02, 2014 USD ($)	Nov. 19, 2010
Debt Instrument [Line Items]
Debt to EBITDA (Leverage) Ratio		3.8
Total long-term debt	$ 2,682.7	$ 6,006.5	$ 2,682.7
Line of Credit Facility, Fair Value of Amount Outstanding	0.0	0.0	0.0
Other Long-term Debt	0.0	715.0	0.0
Debt Instrument, Face Amount		600.0
Senior Notes, Noncurrent									$ 2,900.0
Capital Lease Obligations	39.2	$ 52.9	39.2
Long-term Debt, Maturities, Repayment Terms		P5Y
Debt Covenant Requirement for Number of Consecutive Fiscal Quarters \| Quarters
Revolving Credit Facility covenant terms ceiling		0.0
Line of Credit Facility, Maximum Borrowing Capacity										$ 1,000.0
Credit Facility Option to Increase										250.0
Credit Facility, Maximum Swing Line Borrowings										100.0
Capital lease obligation	3.2	$ 4.3	3.2
Senior notes due 2015 [Member]
Debt Instrument [Line Items]
Stated interest rate percentage		5.625%
Senior notes due 2016 [Member]
Debt Instrument [Line Items]
Total long-term debt	325.0	$ 0.0	325.0
Stated interest rate percentage		3.125%
Senior notes due 2017 [Member]
Debt Instrument [Line Items]
Total long-term debt	500.0	$ 500.0	500.0
Stated interest rate percentage		2.20%
Senior notes due 2018 [Member]
Debt Instrument [Line Items]
Total long-term debt	400.0	$ 400.0	400.0
Senior notes due 2020 [Member]
Debt Instrument [Line Items]
Total long-term debt		638.6
Debt Instrument, Face Amount	618.5		618.5
Senior Notes, Noncurrent	0.0	$ 500.0	0.0						$ 500.0
Stated interest rate percentage		4.625%							2.625%			4.625%
Senior notes due 2022 [Member]
Debt Instrument [Line Items]
Total long-term debt	500.0	$ 500.0	500.0
Senior Notes, Noncurrent	0.0	$ 500.0	0.0						$ 500.0
Stated interest rate percentage		3.75%							3.20%
Senior notes due 2025 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent									$ 1,000.0
Stated interest rate percentage									3.60%
Senior notes due 2023 [Member]
Debt Instrument [Line Items]
Total long-term debt	300.0	$ 300.0	300.0
Senior notes due 2025 [Member] [Member]
Debt Instrument [Line Items]
Total long-term debt	0.0	1,000.0	0.0
Senior notes due 2045 [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 0.0	$ 900.0	$ 0.0
Senior Notes, Noncurrent									$ 900.0
Stated interest rate percentage									4.70%
Long-term Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		1.44%
Covance [Member]
Debt Instrument [Line Items]
Other Long-term Debt							$ 1,000,000.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Initiation Date	Dec. 19, 2014
Credit Facility, Maximum Letters of Credit										$ 125.0
60-Day Debt Bridge Traunche [Domain]
Debt Instrument [Line Items]
Bridge Term Credit Facility Agreement, Maximum Borrowing Amount											$ 400.0
Short-term Debt, Terms			P60D
Maximum [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt to EBITDA (Leverage) Ratio								3.75
Prime Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate Description			0.00% to 0.60%
Prime Rate [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate Description			0.125% to 1.00%
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Description			0.125% to 0.40%
London Interbank Offered Rate (LIBOR) [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate Description			1.00% to 1.60%
London Interbank Offered Rate (LIBOR) [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate Description			1.125% to 2.00%
Scenario, Forecast [Member] \| Maximum [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt to EBITDA (Leverage) Ratio				3.75	4.25	4.75