v2.4.0.8

Debt (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 2.35% senior notes due September 2016	Sep. 30, 2013 2.35% senior notes due September 2016	Dec. 31, 2013 6.15% senior notes due February 2018	Dec. 31, 2012 6.15% senior notes due February 2018	Dec. 31, 2013 9.25% senior notes due January 2019	Dec. 31, 2012 9.25% senior notes due January 2019	Dec. 31, 2013 5.00% senior notes due September 2020	Dec. 31, 2012 5.00% senior notes due September 2020	Dec. 31, 2013 4.625% senior notes due September 2021	Dec. 31, 2012 4.625% senior notes due September 2021	Dec. 31, 2013 5.10% senior notes due September 2023	Sep. 30, 2013 5.10% senior notes due September 2023	Dec. 31, 2013 Revolving Credit Facility	Dec. 31, 2012 Revolving Credit Facility	Dec. 31, 2013 Commercial paper
Long-term debt
Senior Notes			$ 349,820		$ 969,928	$ 968,708	$ 339,607	$ 1,125,000	$ 697,947	$ 697,648	$ 698,148	$ 697,907	$ 348,765
Revolving credit facility															170,000	890,000
Other	10,243	437
Long-term Debt	3,914,302	4,379,700															329,844
Current debt	10,185	364
Long-term debt	$ 3,904,117	$ 4,379,336
Interest rate on senior notes due (as a percent)			2.35%	2.35%	6.15%		9.25%		5.00%		4.625%		5.10%	5.10%

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount borrowed under the credit facility as of the balance sheet date.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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