Debt (Debt) (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Other	$ 28,666,000	$ 40,350,000
Total	5,102,476,000	5,118,775,000
Current maturities of debt	23,842,000	32,896,000
Long-term debt	5,078,634,000	5,085,879,000
Available borrowing capacity under lines of credit	245,800,000
Loans Payable [Member]
Debt Instrument [Line Items]
Term loan ($1.63 billion face value) due 2018	1,620,526,000	1,627,384,000
Debt Instrument, Face Amount	1,634,125,000
Debt Instrument, Basis Spread on Variable Rate	4.50%
8.75% Senior Notes Due 2016 [Member]
Debt Instrument [Line Items]
Senior notes	592,084,000	590,999,000
Senior notes interest rate	8.75%
Debt Instrument, Face Amount	600,000,000
7.00% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior notes	1,000,000,000	1,000,000,000
Senior notes interest rate	7.00%
9.875% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior notes	361,200,000	360,042,000
Senior notes interest rate	9.875%
Debt Instrument, Face Amount	375,000,000
7.25% Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Senior notes	500,000,000	500,000,000
Senior notes interest rate	7.25%
7.25% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior notes	$ 1,000,000,000	$ 1,000,000,000
Senior notes interest rate	7.25%