Long-Term Debt (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011
Scheduled maturities of long-term debt outstanding
2012	$ 63,706
2013	87,993
2014	4,417,745
2015	1,796,304
2016	18,644
Thereafter	2,462,112
Total	$ 8,846,504

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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