FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Value And Fair Value Of Financial Instruments Disclosure) (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	$ 3,621,500,000		$ 3,980,000,000
Long-term debt:
Long-term Debt	2,880,900,000		2,843,300,000
Total long-term debt, carrying value	2,880,900,000		2,843,300,000
$700 Million 4.875% 2021 Senior Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	700,000,000		700,000,000
Long-term debt:
Long-term Debt	422,900,000	[1]	689,500,000	[1]
Senior Notes - $1.3 Billion [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	1,300,000,000.0		1,300,000,000.0
$400 Million 5.90% 2020 Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	400,000,000		400,000,000
Long-term debt:
Long-term Debt	325,700,000	[2]	393,700,000	[2]
$500 Million 3.95% 2018 Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	500,000,000.0		500,000,000
Long-term debt:
Long-term Debt	433,800,000	[3]	477,400,000	[3]
Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	540,000,000		0
Long-term debt:
Long-term Debt	503,500,000	[3]
Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Face Amount	544,200,000		0
Long-term debt:
Debt Instrument, Fair Value Disclosure	397,200,000
Long-term Debt	397,200,000	[3]
Revolving Credit Facility [Member]
Long-term debt:
Revolving loan, carrying value	0	[4]	0	[5]
Interest Rate Swap [Member]
Long-term debt:
Fair Value Adjustment to Interest Rate Hedge	2,700,000		2,800,000
Fair Value, Inputs, Level 2 [Member]
Long-term debt:
Total long-term debt, fair value	2,081,700,000		1,614,200,000
Fair Value, Inputs, Level 2 [Member] | $700 Million 4.875% 2021 Senior Note [Member]
Long-term debt:
Debt Instrument, Fair Value Disclosure	220,000,000		367,300,000
Fair Value, Inputs, Level 2 [Member] | Senior Notes - $1.3 Billion [Member]
Long-term debt:
Debt Instrument, Fair Value Disclosure	425,800,000		704,000,000
Fair Value, Inputs, Level 2 [Member] | $400 Million 5.90% 2020 Senior Notes [Member]
Long-term debt:
Debt Instrument, Fair Value Disclosure	190,500,000		228,100,000
Fair Value, Inputs, Level 2 [Member] | $500 Million 3.95% 2018 Senior Notes [Member]
Long-term debt:
Debt Instrument, Fair Value Disclosure	337,900,000		312,000,000
Fair Value, Inputs, Level 2 [Member] | Five hundred forty million Eight point two five Twenty twenty First Lien Notes [Member]
Long-term debt:
Debt Instrument, Fair Value Disclosure	507,600,000		0
Fair Value, Inputs, Level 2 [Member] | Five hundred Forty-four Million Seven Point Seven Five Twenty Twenty Second Lien Notes [Member]
Long-term debt:
Debt Instrument, Fair Value Disclosure	397,200,000		0
Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member]
Long-term debt:
Revolving loan, fair value	0		0
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Long-term debt:
Fair Value Adjustment to Interest Rate Hedge	2,700,000		2,800,000
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Long-term debt:
Total long-term debt, carrying value	2,880,900,000		2,843,300,000
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | $700 Million 4.875% 2021 Senior Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	422,900,000		689,500,000
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Senior Notes - $1.3 Billion [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	795,100,000		1,279,900,000
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | $400 Million 5.90% 2020 Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	325,700,000		393,700,000
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | $500 Million 3.95% 2018 Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	433,800,000		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]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	503,500,000		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]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	397,200,000		0
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, Noncurrent	0		0
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Long-term debt:
Fair Value Adjustment to Interest Rate Hedge	$ 2,700,000		$ 2,800,000

[1] During the first quarter of 2015, we purchased $58.3 million of outstanding 4.875 percent senior notes that were trading at a discount of 52.0 percent which resulted in a gain on extinguishment of $20.0 million. In addition, on March 27, 2015, we exchanged as part of a tender offer $208.5 million of the 4.875 percent senior notes for $170.3 million of the 7.75 percent second lien notes at a discount of $46.0 million based on an imputed interest rate of 15.55 percent, resulting in a gain on extinguishment of $83.1 million, net of amounts expensed for unamortized original issue discount and deferred origination fees. As of March 31, 2015, the $700.0 million 4.875 percent senior notes were recorded at a par value of $423.2 million less unamortized discounts of $0.3 million, based on an imputed interest rate of 4.89 percent. As of December 31, 2014, the $700.0 million 4.875 percent senior notes were recorded at a par value of $690.0 million less unamortized discounts of $0.5 million based on an imputed interest rate of 4.88 percent.

[2] During the first quarter of 2015, we purchased $1.3 million of outstanding 5.90 percent senior notes that were trading at a discount of 58.0 percent, which resulted in a gain on extinguishment of $0.3 million. In addition, on March 27, 2015, we exchanged as part of a tender offer $67.0 million of the 5.90 percent senior notes for $57.5 million of the 7.75 percent second lien notes at a discount of $15.5 million based on an imputed interest rate of 15.55 percent, resulting in a gain on extinguishment of $24.5 million, net of amounts expensed for unamortized original issue discount and deferred origination fees. As of March 31, 2015, the $400.0 million 5.90 percent senior notes were recorded at a par value of $326.8 million less unamortized discounts of $1.1 million, based on an imputed interest rate of 5.98 percent. As of December 31, 2014, the $400.0 million 5.90 percent senior notes were recorded at a par value of $395.0 million less unamortized discounts of $1.3 million based on an imputed interest rate of 5.98 percent.

[3] During the first quarter of 2015, we purchased $44.0 million of outstanding 3.95 percent senior notes that were trading at a discount of 77.5 percent, which resulted in a gain on the extinguishment of debt of $7.1 million. As of March 31, 2015, the $500.0 million 3.95 percent senior notes were recorded at a par value of $436.0 million less unamortized discounts of $2.2 million, based on an imputed interest rate of 6.32 percent. As of December 31, 2014, the $500.0 million 3.95 percent senior notes were recorded at a par value of $480.0 million less unamortized discounts of $2.6 million based on an imputed interest rate of 5.17 percent.

[4] As of March 31, 2015, no loans were drawn under the ABL Facility and we had total availability of $441.1 million as a result of borrowing base limitations. As of March 31, 2015, the principal amount of letter of credit obligations totaled $136.2 million and foreign exchange hedge obligations totaled $5.5 million, thereby further reducing available borrowing capacity on our ABL Facility to $299.4 million.

[5] As of December 31, 2014, we had no revolving loans drawn under the revolving credit agreement of which had $1.125 billion availability. As of December 31, 2014, the principal amount of letter of credit obligations totaled $149.5 million, thereby further reducing available borrowing capacity on the revolving credit agreement to $975.5 million.