FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Value And Fair Value Of Financial Instruments Disclosure) (Details) - USD ($) |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | $ 3,621,500,000 | Ìý | $ 3,980,000,000 | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Long-term Debt | 2,887,400,000 | Ìý | 2,843,300,000 | |||||||||||||
Total long-term debt, carrying value | 2,887,400,000 | Ìý | 2,843,300,000 | |||||||||||||
$700 Million 4.875% 2021 Senior Note [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | 700,000,000 | Ìý | 700,000,000 | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Long-term Debt | [1] | 422,900,000 | Ìý | 689,500,000 | ||||||||||||
Senior Notes - $1.3 Billion [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | 1,300,000,000.0 | Ìý | 1,300,000,000.0 | |||||||||||||
$400 Million 5.90% 2020 Senior Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | 400,000,000 | Ìý | 400,000,000 | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Long-term Debt | [2] | 325,800,000 | Ìý | 393,700,000 | ||||||||||||
$500 Million 3.95% 2018 Senior Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | 500,000,000.0 | Ìý | 500,000,000 | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Long-term Debt | [3] | 434,000,000 | Ìý | 477,400,000 | ||||||||||||
Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | 540,000,000 | Ìý | 0 | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Long-term Debt | 504,900,000 | Ìý | Ìý | |||||||||||||
Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Face Amount | 544,200,000 | Ìý | 0 | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | Ìý | $ 397,200,000 | Ìý | |||||||||||||
Long-term Debt | 402,200,000 | Ìý | Ìý | |||||||||||||
Revolving Credit Facility [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Revolving loan, carrying value | 0 | [4] | Ìý | 0 | [5] | |||||||||||
Interest Rate Swap [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Fair Value Adjustment to Interest Rate Hedge | 2,500,000 | Ìý | 2,800,000 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Total long-term debt, fair value | 1,910,800,000 | Ìý | 1,614,200,000 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | $700 Million 4.875% 2021 Senior Note [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | 208,400,000 | Ìý | 367,300,000 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | Senior Notes - $1.3 Billion [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | 357,400,000 | Ìý | 704,000,000 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | $400 Million 5.90% 2020 Senior Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | 163,600,000 | Ìý | 228,100,000 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | $500 Million 3.95% 2018 Senior Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | 318,000,000 | Ìý | 312,000,000 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | 512,700,000 | Ìý | 0 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Debt Instrument, Fair Value Disclosure | 348,200,000 | $ 397,200,000 | 0 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Revolving loan, fair value | 0 | Ìý | 0 | |||||||||||||
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Fair Value Adjustment to Interest Rate Hedge | 2,500,000 | Ìý | 2,800,000 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Total long-term debt, carrying value | 2,887,400,000 | Ìý | 2,843,300,000 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | $700 Million 4.875% 2021 Senior Note [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 422,900,000 | Ìý | 689,500,000 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Senior Notes - $1.3 Billion [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 795,100,000 | Ìý | 1,279,900,000 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | $400 Million 5.90% 2020 Senior Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 325,800,000 | Ìý | 393,700,000 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | $500 Million 3.95% 2018 Senior Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 434,000,000 | Ìý | 477,400,000 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 504,900,000 | Ìý | 0 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 402,200,000 | Ìý | 0 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member] | Ìý | Ìý | Ìý | |||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | Ìý | Ìý | Ìý | |||||||||||||
Senior Notes, Noncurrent | 0 | Ìý | 0 | |||||||||||||
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] | Ìý | Ìý | Ìý | |||||||||||||
Long-term debt: | Ìý | Ìý | Ìý | |||||||||||||
Fair Value Adjustment to Interest Rate Hedge | $ 2,500,000 | Ìý | $ 2,800,000 | |||||||||||||
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