DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	$ 24,300,000	$ 24,200,000
Long-term Debt, Excluding Current Maturities	$ 6,039,400,000	6,039,400,000	$ 6,344,600,000
Debt Instrument, Basis Spread on Variable Rate	2.298%
Fair Value Hedges, Net	$ (5,600,000)	(5,600,000)
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 24,300,000	24,300,000
Minimum percentage of market price to calculated value of zero-coupon subordinated debt at which the entity is subject to contingent cash interest	120.00%
Embedded derivative, fair value	$ 0	0
Embedded derivative, impact on condensed consolidated statements of operations	0
Senior notes due 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	500,000,000	500,000,000	500,000,000
Foreign Currency Contract, Asset, Fair Value Disclosure	14,200,000	14,200,000
Cross currency swap maturing 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 300,000,000	$ 300,000,000
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%	4.625%
Long-term Debt, Excluding Current Maturities	$ 594,400,000	$ 594,400,000	604,100,000
Senior Long Term Notes Due2020 Member
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	600,000,000	600,000,000
Senior notes due 2025 [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	1,000,000,000	1,000,000,000	1,000,000,000
Foreign Currency Contract, Asset, Fair Value Disclosure	10,000,000	10,000,000
Fair Value, Inputs, Level 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair Value Hedges, Net	(5,600,000)	(5,600,000)	$ 4,100,000
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 24,300,000	$ 24,300,000

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

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The percentage by which average market price exceeds the sum of the issue price, accrued original issue discount and contingent additional principal on the zero-coupon subordinated notes at which contingent cash interest becomes payable.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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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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Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities.

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-SubTopic 10
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-Paragraph 5
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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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-Publisher FASB
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Net fair value of all derivative instruments designated as fair value hedging instruments.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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