Debt (Details 3) (USD $) In Thousands	Sep. 30, 2011
Long-term debt maturities
2011	$ 88,775
2012	1,534,680
2013	1,664,497
2014	1,742,614
2015	1,150,401
2016	944,052
Thereafter	3,591,063
Total principal due	10,716,082
Premium, net	76,872
Net carrying balance	10,792,954
Wholly Owned [Member]
Long-term debt maturities
2011	48,891
2012	1,153,008
2013	1,044,335
2014	669,147
2015	1,132,571
2016	902,805
Thereafter	3,586,283
Total principal due	8,537,040
Premium, net	24,775
Net carrying balance	8,561,815
Consolidated Investees [Member]
Long-term debt maturities
2011	39,884
2012	381,672
2013	620,162
2014	1,073,467
2015	17,830
2016	41,247
Thereafter	4,780
Total principal due	2,179,042
Premium, net	52,097
Net carrying balance	$ 2,231,139

Amount of long-term debt maturing after six years from the latest balance sheet date through the life of the debt.

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Amount of long-term debt maturing in year six following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Total principal of long-term debt outstanding, excludes any discounts or premiums.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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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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-Name Regulation S-X (SX)

-Number 210

-Article 7

-Section 03

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Amount of long-term debt maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates.

+ References

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Amount of long-term debt maturing in year five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Amount of long-term debt maturing in year four following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Amount of long-term debt maturing in year three following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Amount of long-term debt maturing in year two following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates.

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